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CN-121989784-A - Off-highway mining dump truck and unloading method

CN121989784ACN 121989784 ACN121989784 ACN 121989784ACN-121989784-A

Abstract

The invention relates to the technical field of mining dumpers, in particular to an off-highway mining dumper and a discharging method. The transfer device is positioned below the hopper, the hopper comprises a hopper body and a discharge door assembly, the hopper body is hinged to the frame in a turnover manner, the discharge door assembly is rotatably arranged at the rear end of the hopper body so as to open or close the discharge opening, and the transfer device comprises a conveying mechanism which can horizontally move along the front-back direction and is horizontally and rotatably connected to the frame. Through setting up transfer device, and conveying mechanism in the transfer device can follow fore-and-aft direction horizontal migration, rotate along the horizontal direction for the material in the car hopper body is carried to the gallery through conveying mechanism's transport, thereby realizes need not the manual work can empty the material accurately in the target gallery, has saved artifical secondary transport, has reduced workman's intensity of labour by a wide margin, has improved the precision of unloading and has unloaded efficiency.

Inventors

  • LIU JINGJUN
  • WANG GANG
  • ZHU FENG

Assignees

  • 扎赉诺尔煤业有限责任公司

Dates

Publication Date
20260508
Application Date
20260212

Claims (10)

  1. 1. The off-highway mining dump truck comprises a frame (1) and is characterized by further comprising a hopper (2) and a transfer device (3), wherein the transfer device (3) is positioned below the hopper (2); The hopper (2) comprises a hopper body (21) and a discharging door assembly (22), wherein the hopper body (21) is hinged to the frame (1) in a turnover manner, and the discharging door assembly (22) is rotatably arranged at the rear end of the hopper body (21) so as to open or close a discharging opening; the transfer device (3) comprises a conveying mechanism (33) which can horizontally move along the front-back direction and can horizontally rotate and is connected to the frame (1); When the conveying mechanism (33) is positioned at the front side, the conveying mechanism is hidden below the hopper (2); The hopper body (21) is horizontally arranged, and the discharging door assembly (22) is in a loading posture when the discharging opening is closed; The hopper body (21) is obliquely arranged relative to the conveying mechanism (33), the conveying mechanism (33) moves to the rear side position and rotates left and right to the target angle, and when the discharge door assembly (22) opens the discharge opening towards the conveying mechanism (33), the hopper body is in a discharge posture, and the conveying mechanism (33) can convey the discharge of the discharge opening to the target position.
  2. 2. The off-highway mining dump truck of claim 1, wherein: The transfer device (3) further comprises a moving plate (31) and a rotating mechanism (32), wherein the moving plate (31) is horizontally movably arranged on the frame (1) along the front-back direction, the rotating mechanism (32) is fixedly arranged in the moving plate (31), and the rotating end of the rotating mechanism (32) penetrates through the moving plate (31) to be fixedly connected with the bottom of the conveying mechanism (33) and is used for driving the conveying mechanism (33) to horizontally rotate; the off-highway mining dump truck further comprises a transmission device (4), wherein the transmission device (4) comprises a first driving piece (41), a transmission mechanism (42) and a threaded rod (43); The first driving piece (41) and the transmission mechanism (42) are fixedly arranged in the frame (1), a sliding groove (11) extending along the front-back direction is formed in the top of the frame (1), a threaded rod (43) is rotatably arranged in the sliding groove (11) along the extending direction of the sliding groove (11), and two ends of the transmission mechanism (42) are respectively connected with the driving end of the first driving piece (41) and one end of the threaded rod (43); The bottom of the moving plate (31) is provided with a sliding seat (34), and the sliding seat (34) is arranged in the sliding groove (11) and is screwed on the threaded rod (43); The driving end of the first driving piece (41) can drive the threaded rod (43) to rotate through the transmission mechanism (42) so as to drive the sliding seat (34) and the moving plate (31) to horizontally move back and forth along the axis of the threaded rod (43) at the same time, so that the conveying position of the conveying mechanism (33) is changed.
  3. 3. The off-highway mining dump truck of claim 2, wherein: the transmission mechanism (42) comprises a first worm wheel (421) and a first worm (422); the first worm (422) is horizontally arranged along the front-back direction, one end of the first worm (422) is fixedly connected with the driving end of the first driving piece (41), the other end of the first worm is rotatably connected with the frame (1), and the first worm wheel (421) is vertically arranged in the frame (1) and is fixedly connected with one end of the threaded rod (43); The first worm wheel (421) is meshed with the first worm (422) so that the driving end of the first driving piece (41) can drive the first worm (422) to rotate, and accordingly the first worm wheel (421) and the threaded rod (43) are driven to coaxially rotate at the same time.
  4. 4. The off-highway mining dump truck of claim 2, wherein: the rotating mechanism (32) comprises a second driving piece (321), a second worm wheel (322), a second worm (323) and a rotating shaft (324); The second driving piece (321), the second worm (323) and the second worm wheel (322) are horizontally arranged, the driving end of the second driving piece (321) is fixedly connected with one end of the second worm (323), the second worm wheel (322) is meshed with the second worm (323), the rotating shaft (324) is vertically arranged and coaxial with the second worm wheel (322), one end of the rotating shaft (324) is fixedly connected with the second worm wheel (322), and the other end of the rotating shaft passes through the movable plate (31) to be fixedly connected with the bottom of the conveying mechanism (33); the driving end of the second driving piece (321) can drive the second worm (323) to rotate so as to drive the second worm wheel (322), the rotating shaft (324) and the conveying mechanism (33) to rotate around the axis of the rotating shaft (324) at the same time, so that the conveying direction of the conveying mechanism (33) is changed.
  5. 5. The off-highway mining dump truck of claim 4, wherein: the conveying mechanism (33) comprises a conveying frame (331), a third driving piece (332), a conveying belt (333), a driving roller (334), a driven roller (335) and a plurality of auxiliary rollers (336); The bottom of the conveying frame (331) is fixedly connected with the top of the conveying shaft, the driving roller (334), the driven roller (335) and the auxiliary rollers (336) are horizontally arranged along the left-right direction of the frame (1) and rotatably arranged in the conveying frame (331), and the driving roller (334), the driven roller (335) and the auxiliary rollers (336) are arranged at intervals along the front-back direction of the frame (1); the conveying belt (333) is sleeved on the driving roller (334), the driven roller (335) and the auxiliary rollers (336); The third driving piece (332) is fixedly arranged on the outer wall of the conveying frame (331), and the driving end of the third driving piece (332) penetrates through the conveying frame (331) to be fixedly connected with the driving roller (334), so that the driving end of the third driving piece (332) can drive the driving roller (334) to rotate, the driven roller (335) and the auxiliary rollers (336) are synchronously driven to rotate, and the conveying belt (333) can convey materials towards the rear of the frame (1).
  6. 6. The off-highway mining dump truck of claim 5, wherein: the conveying mechanism (33) also comprises a guide plate (337); The guide plate (337) is fixedly arranged at the rear end of the conveying frame (331), and the guide plate (337) is obliquely arranged towards the rear lower part and is used for guiding materials conveyed by the conveying belt (333).
  7. 7. The off-highway mining dump truck of claim 1, wherein: The unloading door assembly (22) comprises a door plate (221) and two first telescopic cylinders (222); The fixed end of the first telescopic cylinder (222) is hinged with the frame (1), the telescopic end of the first telescopic cylinder (222) is hinged with the bottom of the hopper body (21), and the rear end of the hopper body (21) is a discharge opening; The door plate (221) is hinged to the top of the discharge opening of the hopper body (21), the fixed ends of the two first telescopic cylinders (222) are respectively hinged to the left side wall and the right side wall of the hopper body (21), and the telescopic ends of the two first telescopic cylinders (222) are respectively hinged to the left side wall and the right side wall of the bottom of the door plate (221); the two first telescopic cylinders (222) can simultaneously telescopic so as to drive the door plate (221) to rotate around the hinge axis of the door plate and the hopper body (21) for opening or closing the discharge opening.
  8. 8. The off-highway mining dump truck of claim 7, wherein: an arc-shaped bulge (5) is arranged on the outer wall of the bottom of the rear end of the car hopper body (21), the arc-shaped bulge (5) extends along the left-right direction of the car hopper body (21), and the arc-shaped bulge (5) protrudes towards the door plate (221); the front end of the door plate (221) is provided with an arc-shaped groove (2211) corresponding to the arc-shaped bulge (5), and the arc-shaped groove (2211) can be tightly attached to the arc-shaped bulge (5) so that the door plate (221) can seal the car hopper body (21).
  9. 9. The off-highway mining dump truck of claim 7, wherein: the car hopper (2) also comprises two guide blocks (23); The two guide blocks (23) are fixedly arranged in the hopper body (21) and are fixedly connected with the inner walls of the left side and the right side of the hopper body (21) respectively, and the two guide blocks (23) are positioned at the rear end of the hopper body (21) and are symmetrically arranged by the central line of the hopper body (21) in the front-rear direction; the side walls of the opposite sides of the two diversion blocks (23) are inclined planes, and the inclined planes incline from front to back towards the central line of the front and back direction of the hopper body (21) so as to reduce the size of the discharge opening.
  10. 10. A method of unloading comprising the off-highway mining dump truck of any one of claims 1-9, further comprising the steps of: s1, a conveying mechanism (33) moves to a rear side position and rotates left and right to a target angle; s2, driving the hopper body (21) to turn towards the rear of the frame (1) to a specified angle, and then driving the discharge door assembly (22) to open a discharge opening, so that materials in the hopper body (21) are dumped to the conveying mechanism (33); And S3, conveying the material to a target position by a conveying mechanism (33).

Description

Off-highway mining dump truck and unloading method Technical Field The invention relates to the technical field of mining dumpers, in particular to an off-highway mining dumper and a discharging method. Background The off-highway mining dump truck is a heavy transport vehicle special for off-highway scenes such as surface mines, hydraulic engineering and the like, mainly bears the tasks of ore earthwork stripping and transportation, and has the characteristics of large carrying capacity (20-363 tons), strong frame torsion resistance, adoption of engineering tires, oil-gas suspensions and the like. Because of ultra-wide shape and excessive total mass, the off-highway mining dump truck is not allowed to run on a highway, and has the working characteristics of short transportation distance and heavy load, and is loaded by a large electric shovel or a hydraulic shovel to and from a mining point and a mining point. At present, the existing off-highway mining dump trucks drive a hopper to incline through a hydraulic rod, so that the unloading function is realized. However, the unloading mode is that the end, far away from the cab, of the hopper is flush with the end, far away from the cab, of the frame, so that wheels are prevented from falling into a pit for safety, when the off-highway mining dump truck is unloading materials, the end, far away from the cab, of the hopper is often away from a target tunnel by a certain distance, namely, the materials are unloaded to the ground, and then the materials are manually carried into the tunnel, so that the labor intensity of workers is greatly increased, the unloading accuracy and the unloading efficiency are reduced, and a large amount of time is wasted. Therefore, there is a need for an off-highway mining vehicle capable of accurately unloading materials into a tunnel, so as to reduce labor intensity of workers, improve unloading accuracy and unloading efficiency, and save time. Disclosure of Invention First, the technical problem to be solved In view of the above-mentioned shortcomings and disadvantages of the prior art, the invention provides an off-highway mining dump truck and a discharging method, which solve the technical problems that the existing off-highway mining dump truck cannot accurately discharge materials to a designated position, so that the materials need to be manually conveyed to the designated position, the labor intensity is greatly increased, and the discharging efficiency and the discharging accuracy are reduced. (II) technical scheme In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps: The invention provides a transport vehicle for a coal mine, which comprises a frame, a hopper and a transfer device, wherein the transfer device is positioned below the hopper, the hopper comprises a hopper body and a discharge door assembly, the hopper body is hinged to the frame in a reversible manner, the discharge door assembly is rotatably arranged at the rear end of the hopper body so as to open or close a discharge opening, the transfer device comprises a conveying mechanism which can horizontally move along the front-back direction and is horizontally and rotatably connected to the frame, the conveying mechanism is hidden below the hopper when positioned at a front side position, the hopper body is horizontally arranged and is in a loading posture when the discharge door assembly closes the discharge opening, the hopper body is obliquely arranged relative to the conveying mechanism, the conveying mechanism moves to the rear side position and horizontally rotates to a target angle, and the conveying mechanism is in a discharge posture when the discharge door assembly opens the discharge opening towards the conveying mechanism and can convey the discharge opening to the target position. The transfer device comprises a frame, a transfer plate, a rotating mechanism, a sliding seat, a driving end of the first driving part, a threaded rod, a driving device and a transmission device, wherein the transfer plate and the rotating mechanism are arranged in the frame in a horizontally movable mode along the front-back direction, the rotating mechanism is fixedly arranged in the transfer plate, the rotating end of the rotating mechanism penetrates through the transfer plate and is fixedly connected with the bottom of the conveying mechanism and is used for driving the conveying mechanism to horizontally rotate, the transmission device comprises a first driving part, a transmission mechanism and a threaded rod, the first driving part and the transmission mechanism are fixedly arranged in the frame, a sliding groove extending along the front-back direction is formed in the top of the frame, the threaded rod is rotatably arranged in the sliding groove along the extending direction of the sliding groove, two ends of the transmission mechanism are respectively connected with the driving end of the first