Search

CN-121974095-A - Concrete aggregate precision control device based on screw conveying

CN121974095ACN 121974095 ACN121974095 ACN 121974095ACN-121974095-A

Abstract

The invention belongs to the technical field of concrete conveying, in particular to a concrete aggregate precision control device based on spiral conveying, which comprises a U-shaped groove body, wherein a concrete conveying mechanism is arranged outside the U-shaped groove body, a sectioning mechanism is designed at the middle position inside the concrete conveying mechanism, and an adjusting mechanism is arranged inside the sectioning mechanism; according to the invention, through functional coordination of adjusting racks, lead screws, connecting rods, main position wedge plates, spring ejector pins, angle wedge blocks and correction plates, coaxiality deviation sensing signals are converted into radial displacement output of the multi-area correction plates, dynamic real-time closed loop correction of coaxiality deviation of the flexible coupling is finally realized, the upper limit of the fixed compensation capacity of the traditional flexible coupling is broken through, industrial pain points of cold centering and hot misalignment are fundamentally solved, and coaxiality precision of two sections of auger shafts is continuously maintained.

Inventors

  • YANG YONGPENG
  • SHI YANLIN
  • LI ZHENGHONG
  • YANG LEIPENG
  • Niu Gengxin
  • SU JUN
  • HE SHENGYAO
  • WANG JUNPENG

Assignees

  • 山西世创云海科技有限公司

Dates

Publication Date
20260505
Application Date
20260330

Claims (10)

  1. 1. The concrete aggregate precision control device based on spiral conveying comprises a U-shaped groove body (1) and is characterized in that a concrete conveying mechanism (2) is arranged outside the U-shaped groove body (1), a sectioning mechanism (3) is arranged in the middle position inside the concrete conveying mechanism (2), and an adjusting mechanism (4) is arranged inside the sectioning mechanism (3); the adjusting mechanism (4) comprises: the shaft outer ring (41) is arranged in the middle of the U-shaped groove body (1), and the shaft outer ring (41) and the U-shaped groove body (1) are coaxially distributed; the shaft disc (42) is coaxially clamped and mounted on the inner wall of the shaft outer ring (41); at least two key grooves (43) are uniformly formed on the outer wall of the shaft disc (42); the through hole (44) is formed in the inner wall of one end, close to the axis of the shaft disc (42), of the key groove (43) in a penetrating way; The corner pad (45) is clamped and mounted on the inner wall of one end of the through hole (44) close to the axis of the shaft disc (42); The upright post (46) is arranged at the axle center of the corner pad (45) in a penetrating type sliding clamping manner; The corner ring (47) is clamped and mounted on the outer wall of one end of the upright post (46) far away from the axis of the shaft disc (42), and the corner ring (47) is assembled with the inner wall of the through hole (44) in a sliding manner; the telescopic spring (48) is clamped and installed between the opposite surfaces of the corner ring (47) and the corner pad (45), and the telescopic spring (48) is sleeved on the outer wall of the upright post (46); 匚 opening frame (49), joint are installed in stand (46) and are kept away from the one end of arbor (42) axis.
  2. 2. The concrete aggregate precision control device based on spiral conveying according to claim 1, wherein a transverse shaft (411) is installed in a co-rotating mode between inner walls of vertical sections of the key groove (43), a ratchet pawl assembly (412) is installed in a clamping mode at the middle position of the outer wall of the transverse shaft (411), a central gear (413) is installed in a clamping mode at the outer wall of the ratchet pawl assembly (412), a central rack (414) is installed in a clamping mode at the middle position of one vertical section of a 匚 port frame (49), a side gear (415) is installed in a clamping mode at the outer wall of one end of the transverse shaft (411), bridging plates (416) which are distributed in the same direction are arranged outside one side of the key groove (43), two bridging plates (416) are in a group, in addition, a coaxial disc (42) of the bridging plates (416) is assembled in a clamping mode, and an adjusting bin (417) is installed in a co-clamping mode between opposite faces of the two bridging plates (416) of the same group.
  3. 3. The concrete aggregate precision control device based on spiral conveying according to claim 2, wherein an extension plate (421) which is distributed in a right opposite mode is arranged outside the other side of the key groove (43), in addition, an adjusting bin (417) is mounted on one side, far away from the shaft disc (42), of the extension plate (421), a planet wheel (422) is mounted on the middle position of the extension plate (421) through rotating shafts in a rotating fit mode, a sun wheel (423) which is mounted on the outer wall of a transverse shaft (411) in a clamped mode is arranged on one side, close to the shaft disc (42), of the planet wheel (422), the sun wheel (423) is distributed in a right opposite mode with a side position gear (415), a sliding clamp is mounted on the middle position, close to the shaft disc (42), of the adjusting bin (417), an adjusting rack (425) is mounted on one side, close to the shaft disc (42), of the end face of the sliding clamp, of the sliding block (424) is meshed with a side position gear (415), the other adjusting rack (425) is meshed with the planet wheel (422), and a single ball rod (426) is mounted on the middle position, close to the end face of the side, of the sliding block (424), close to the shaft disc (42).
  4. 4. The concrete aggregate precision control device based on spiral delivery according to claim 3, wherein the adjusting bin (417) is close to an inner wall joint of one end of an axis of the shaft disc (42) and is provided with a support plate (431), the support plate (431) is provided with an angle pipe (432) in a joint rotation fit with one end of the adjusting bin (417) close to the axis of the shaft disc (42), an outer wall of the angle pipe (432) is provided with a snake groove (433) matched with a single ball rod (426), one end inner wall screw thread of the angle pipe (432) deviating from the axis of the shaft disc (42) is provided with a lead screw (434), one end joint of the lead screw (434) deviating from the support plate (431) is provided with a T-section post (435) which is installed in a joint rotation fit with the adjusting bin (417), one end joint of the lead screw (434) is provided with a connecting rod (436), one end joint of the connecting rod (436) away from the lead screw (434) is provided with a main wedge plate (437), and one end inner wall joint of the adjusting bin (417) deviating from the support plate (431) is provided with a roller clutch (438) installed in a joint fit with the same angle pipe (432).
  5. 5. The concrete aggregate precision control device based on spiral conveying according to claim 4, wherein the adjusting bin (417) is close to one end of the axis of the shaft disc (42) and is clamped with a vacancy bin (441), the vacancy bin (441) is communicated with the angle pipe (432) and is matched with the angle pipe (432) in a rotating mode, the inner wall of the vacancy bin (441) is clamped with a transverse panel (442) in an array mode, the middle position of the transverse panel (442) is subjected to complete fracture treatment, the outer edges of one side end face of the transverse panel (442) facing away from the axis of the shaft disc (42) are clamped with vertical panels (443), telescopic spring rods (444) are clamped with one end of the transverse panel (442) facing away from the axis of the shaft disc (42), auxiliary wedge plates (445) are clamped with one end of the vertical panels (443), the middle position of each spring thimble (446) is clamped with one end of the other far away from the axis of the connecting rod (436), and the matched angle blocks (447) are clamped with one end of the telescopic spring rods (448) facing away from the axis of the shaft disc (42), and the telescopic spring rods (448) are clamped with one end of the telescopic wedge plates (447) close to the axis of the shaft disc (42).
  6. 6. The concrete aggregate accuracy control device based on screw transportation according to claim 1, wherein the concrete transportation mechanism (2) comprises: The bearing seat (21) is arranged at one end outside the U-shaped groove body (1) in a positive opposite way; the three-phase asynchronous motor (22) is clamped and installed on the end face of one side, away from the ground, of the bearing seat (21); The rigid coupling (23) is clamped and mounted at the output end of the three-phase asynchronous motor (22); the sealing cover (24) is detachably and sectionally clamped and installed at one end of the U-shaped groove body (1) deviating from the ground through bolts; the connecting tail disc (25) is clamped and installed at one end, deviating from the rigid coupling (23), of the U-shaped groove body (1) through the flange disc; The screw shafts (26) are symmetrically arranged inside the U-shaped groove body (1), one screw shaft (26) penetrates through the U-shaped groove body (1) and is clamped and mounted with the rigid coupling (23), and the other screw shaft (26) is mounted with the connecting tail disc (25) in a rotating fit manner; the auger blade (27) is clamped and mounted on the outer wall of the auger shaft (26); the feed inlet (28) is clamped and mounted on the outer wall of one end of the sealing cover (24) close to the three-phase asynchronous motor (22); the support (29) is connected with the outer wall of one end of the U-shaped groove body (1) deviating from the bearing seat (21) in a clamping way.
  7. 7. The concrete aggregate accuracy control device based on screw feeding according to claim 6, wherein the sectioning mechanism (3) comprises: the corner steel plate (31) is detachably clamped and installed in the middle position of the inner wall of the sealing cover (24) through bolts; The middle crane bearing seat (32) is arranged in the middle position inside the U-shaped groove body (1), and the middle crane bearing seat (32) is clamped and installed with the angle steel plate (31); A flexible coupling (33) which is arranged between the opposite surfaces of the two auger shafts (26) in a clamping manner; The double-sided conical tube (34) is arranged in the middle position inside the U-shaped groove body (1), and is installed in a rotating fit with the outer wall of the auger shaft (26) and is assembled in a clamping manner with the middle hanging bearing seat (32); the angle ring (35) is clamped and installed on the outer wall of one end, close to the flexible coupling (33), of the auger shaft (26); the spring corner posts (36) are uniformly distributed in the circumferential direction and are installed on the end face of the corner ring (35) in a sliding clamping manner; the cone opening cap (37) is coaxially arranged on one side, deviating from the flexible coupling (33), of the angle ring (35), and the cone opening cap (37) is clamped and installed with the spring angle column (36).
  8. 8. The concrete aggregate precision control device based on spiral conveying according to claim 3, wherein the thickness of the central gear (413) is equal to that of the concentric rack (414), straight grooves with the same thickness as that of the central gear (413) are formed in the middle positions of vertical sections on two sides of the 匚 port frame (49), the diameters of the side gears (415) and the sun gears (423) are the same, and the diameter of the planet gears (422) is half of that of the sun gears (423).
  9. 9. The concrete aggregate accuracy control device based on spiral conveying according to claim 5, wherein the width of the main position wedge plate (437) is consistent with the width of a fracture in the middle of the transverse plate (442), in addition, one end, close to the axis of the shaft disc (42), of the main position wedge plate (437) is a smooth conical surface, one end, away from the axis of the shaft disc (42), of the main position wedge plate (437) is a smooth vertical surface, the telescopic spring rods (444) are distributed in an array gradient manner along the length direction of the empty position bin (441), the lengths of shaft sections of the telescopic spring rods (444) at different positions are synchronously increased in a gradient manner, the lengths of the spring ejector pins (446) are also increased in a gradient manner along the axis direction of the angular tube (432), the materials among the correction blocks are inconsistent, and the cross sectional areas among the correction blocks are also changed in a gradient manner.
  10. 10. The concrete aggregate precision control device based on spiral conveying according to claim 7, wherein the inner diameter of the shaft disc (42) is larger than the outer diameter of the flexible coupling (33), the end, close to the axis of the shaft disc (42), of the upright post (46) is provided with a contact ball, and the initial state of the contact ball is tangent to the outer wall of the flexible coupling (33).

Description

Concrete aggregate precision control device based on screw conveying Technical Field The invention belongs to the technical field of concrete conveying, and particularly relates to a concrete aggregate precision control device based on spiral conveying. Background The U-shaped screw conveyor takes an opening type metal groove body with a U-shaped cross section as a bearing structure, and pushes bulk materials in the groove to carry out continuous and directional horizontal or small-inclination-angle conveying along the axial direction through the rotary motion of a packing auger, so that the U-shaped screw conveyor is one of the most widely applied general equipment in the field of industrial bulk material conveying; The length of a single machine of the U-shaped screw conveyor is usually limited within a set value (for example, seventy meters), when the length exceeds forty meters, the length-diameter ratio of a screw conveyor shaft is increased, deflection deformation (axial deviation) is easy to generate under the action of self gravity, material pressure and rotation inertia, so that the blade and the groove wall are scraped locally, and the vibration of the whole machine is caused; in addition, for concrete aggregate conveying scenes, the auger is continuously under alternating impact load, and stress concentration areas such as a shaft body connecting end, a middle hanging bearing and the like are easy to generate radial runout of a shaft, so that serious coaxiality misalignment is finally caused, conveying efficiency is influenced, and even material blocking and stopping are frequently carried out; The coaxiality is preset in the prior art usually through a through shaft method, namely a standard through shaft passes through all hanging bearing seats, so that the supporting points are ensured to be on the same axis, initial dislocation is eliminated, static alignment is realized, but after equipment is carried out, aggregate impact, expansion and contraction and deformation caused by dynamic deflection of a shaft body exist, the phenomenon that the coaxiality after static alignment has obvious deviation in hot running, namely the problems of cold centering and hot misalignment exist, the deviation under a dynamic working condition cannot be completely eliminated in the prior art, and meanwhile, the self-compensating structure has the upper limit and poor suitability. Disclosure of Invention In order to solve the problems, the technical scheme is that the concrete aggregate precision control device based on spiral conveying comprises a U-shaped groove body, wherein a concrete conveying mechanism is arranged outside the U-shaped groove body, a sectioning mechanism is arranged in the middle position inside the concrete conveying mechanism, and an adjusting mechanism is arranged inside the sectioning mechanism; The adjustment mechanism includes: The shaft outer ring is arranged in the middle of the U-shaped groove body and is distributed coaxially with the U-shaped groove body; The shaft disc is coaxially clamped and mounted on the inner wall of the outer ring of the shaft; At least two key grooves are uniformly formed in the outer wall of the shaft disc; The through-hole is provided with a through hole, through type is offered and is leaned on in keyway an inner wall near one end of the axis of the shaft disc; the corner pad is provided with a pair of corner pads, the clamping connection is arranged on the through hole an inner wall near one end of the axis of the shaft disc; The upright post is arranged at the axis of the corner pad in a penetrating type sliding clamping manner; the corner ring is clamped and installed on the outer wall of one end of the stand column far away from the axis of the shaft disc, and the corner ring is assembled with the inner wall of the through hole in a sliding manner; the telescopic spring is arranged between the opposite surfaces of the corner ring and the corner pad in a clamping manner, and is sleeved on the outer wall of the upright post; 匚 mouth frame, joint are installed at stand far away from the axle line one end of axle dish. Preferably, the cross shaft is installed in a common running fit manner between the inner walls of the vertical sections of the key grooves, the ratchet pawl assembly is installed in the middle of the outer walls of the cross shaft in a clamping manner, the central gear is installed in the middle of the outer walls of the ratchet pawl assembly in a clamping manner, the central rack is installed in the middle of the vertical sections of one side of the 匚 opening frame in a splicing manner, the side gears are installed in the outer walls of one end of the cross shaft in a clamping manner, the bridging plates which are distributed in the same positive relative direction are arranged outside one side of the key grooves, two bridging plates are in a group, in addition, the bridging plates are assembled in a clamping manner between the coaxial d