CN-224231486-U - Steel fiber concrete impact-resistant device

CN224231486UCN 224231486 UCN224231486 UCN 224231486UCN-224231486-U

Abstract

The utility model provides a steel fiber concrete impact-resistant device, and particularly relates to the technical field of concrete impact resistance. The device comprises a base, a top frame and an impact block, wherein the top frame is fixed at the top of the base, a control panel is arranged on one side of the top frame, a supporting plate and a fixing plate are sequentially and horizontally arranged in the top frame from top to bottom, the supporting plate slides up and down in the top frame through a lifting mechanism, a clamping mechanism is arranged at the bottom of the supporting plate, the impact block is fixed or released through the clamping mechanism, a fixing mechanism is arranged at the top of the fixing plate and corresponds to the position right below the impact block, and a recovery box is arranged at the bottom of the fixing plate. According to the utility model, the steel fiber concrete test piece to be tested is placed in the blocking box, the impact strength test of the steel fiber concrete test piece to be tested is completed through adjusting the lifting mechanism by the impact blocks under different height impact forces, the experimental result is recorded, and meanwhile, the injury to operators caused by falling impact blocks and impacted concrete fragments is effectively prevented.

Inventors

ZHANG JIAN
ZHANG FUKANG
XU MENGRAN
Guo Zhina
XU WANRONG
ZHANG ZIYI
LIU WEI

Assignees

山东科技大学

Dates

Publication Date: 20260512
Application Date: 20250407

Claims (10)

1. The steel fiber concrete impact-resistant device is characterized by comprising a base, a top frame and an impact block, wherein the top frame is fixed at the top of the base; A control panel is arranged on the outer side wall of one side of the top frame; the support plate and the fixed plate are sequentially and horizontally arranged in the top frame from top to bottom, the fixed plate is fixedly connected with the inner side wall of the top frame, and the support plate slides up and down in the top frame through the lifting mechanism; the bottom of the supporting plate is provided with a clamping mechanism, and the impact block is fixed or released through the clamping mechanism; the fixed plate top is provided with fixed establishment corresponding to the position under the impact block, the fixed plate bottom is provided with detachable collection box.
2. The steel fiber reinforced concrete impact resistant device according to claim 1, wherein the lifting mechanism comprises a first servo motor, a driving gear, two transmission gears and two threaded rods vertically arranged between the top frame top plate and the fixed plate; The first servo motor is positioned between the two threaded rods and fixed at the bottom of the top plate of the top frame, the driving gear is sleeved on an output shaft of the first servo motor, the two transmission gears are respectively sleeved on the two threaded rods and correspond to the positions of the driving gears, and the driving gears are meshed with the two transmission gears.
3. The steel fiber reinforced concrete impact resistant device according to claim 2, wherein the support plate is provided with two threaded holes at positions corresponding to the two threaded rods, and the threaded rods of the lifting mechanism are in threaded connection with the threaded holes of the support plate; the left and right sides of backup pad is provided with the connection otic placode, the connection otic placode is provided with the location through-hole.
4. The steel fiber reinforced concrete impact resistant device according to claim 3, wherein guide grooves are formed in the left and right side walls of the top frame, guide rods are symmetrically arranged in the guide grooves along the length direction of the guide grooves, and the support plate is slidably connected with the guide rods of the top frame through positioning through holes.
5. The steel fiber concrete impact-resistant device according to claim 2, wherein the fixing plate is provided with a first mounting hole at a position corresponding to the threaded rod, and a second mounting hole is arranged at a position corresponding to the threaded rod on the top plate of the top frame; The center position of the fixed plate is provided with a recovery port which is communicated with the recovery box.
6. The steel fiber concrete impact resistant device according to claim 2, wherein a connecting rod is arranged at the top of the impact block, a clamping block is arranged at one end of the connecting rod, which is far away from the impact block, and the rod diameter size of the connecting rod is smaller than the outer diameter size of the clamping block.
7. The steel fiber reinforced concrete impact resistant device according to claim 6, wherein the clamping mechanism is arranged in the middle of the bottom of the support plate along the width direction of the support plate and comprises a second servo motor, a screw rod, a first clamping piece and a second clamping piece; The screw rod adopts a double-rotation screw rod and comprises a first screw rod part and a second screw rod part, and the surface screw threads of the first screw rod part and the second screw rod part are opposite in direction; The first clamping piece and the second clamping piece are identical in structure and are oppositely arranged, each clamping piece comprises a vertical part and a horizontal part, the vertical parts of the first clamping piece are in threaded connection with the first screw rod part through threaded holes, the vertical parts of the second clamping piece are in threaded connection with the second screw rod part through threaded holes, semi-cylindrical clamping grooves are formed in one sides, far away from the vertical parts, of the horizontal parts of the first clamping piece and the second clamping piece, and the two clamping grooves are butted to form a complete cylindrical clamping through hole; The aperture size of the clamping through hole is smaller than the outer diameter size of the clamping block, and is equal to the rod diameter size of the connecting rod; The output shaft of the second servo motor is fixed with one end of a screw rod, the other end of the screw rod is connected with a bearing seat at the bottom of the supporting plate through a bearing, and the second servo motor is fixed with the bottom of the supporting plate through a motor bracket.
8. The steel fiber concrete impact resistant device according to claim 7, wherein the fixing mechanism comprises a cuboid separation box with upper and lower openings, two electric pushing rods which are symmetrically arranged in a central axis are arranged in the separation box, clamping claws are arranged at one ends, far away from the inner side walls of the separation box, of each electric pushing rod, and the two clamping claws are oppositely arranged.
9. The steel fiber reinforced concrete impact resistant device according to claim 8, wherein the first servo motor, the second servo motor and the electric push rod are electrically connected with the control panel.
10. The steel fiber reinforced concrete impact resistant device according to claim 1, wherein leveling support feet are arranged at four corners of the base.

Description

Steel fiber concrete impact-resistant device Technical Field The utility model relates to the technical field of concrete impact resistance, in particular to a steel fiber concrete impact resistance device. Background The concrete refers to engineering composite materials which are formed by cementing aggregates into a whole by cementing materials, the concrete is generally called as concrete, cement is used as cementing materials, sand and stone are used as aggregates to be matched with water according to a certain proportion, and the cement concrete is obtained by stirring. When the steel fiber concrete is manufactured into blocks, not only the compressive strength of the steel fiber concrete but also the impact resistance of the steel fiber concrete are required to be detected, so that the impact resistance of the steel fiber concrete is determined, and the application range of the steel fiber concrete is determined. At present, when the steel fiber concrete is subjected to impact resistance test, the free falling weight is generally utilized to strike the steel fiber concrete, but after the weight strikes the steel fiber concrete block, the steel fiber concrete possibly falls to any place to injure workers by smashing, and in addition, the struck steel fiber concrete also can generate splashed scraps, so that potential safety hazards exist and meanwhile, the steel fiber concrete is not easy to recycle and clean. Disclosure of utility model In order to overcome the defects in the prior art, the utility model provides a steel fiber concrete impact-resistant device, which comprises the following specific technical scheme: The steel fiber concrete impact-resistant device comprises a base, a top frame and an impact block, wherein the top frame is fixed at the top of the base, a control panel is arranged on the outer side wall of one side of the top frame, a supporting plate and a fixing plate are sequentially and horizontally arranged in the top frame from top to bottom, the fixing plate is fixedly connected with the inner side wall of the top frame, the supporting plate slides up and down in the top frame through a lifting mechanism, a clamping mechanism is arranged at the bottom of the supporting plate, the impact block is fixed or released through the clamping mechanism, a fixing mechanism is arranged at the top of the fixing plate and corresponds to the position right below the impact block, and a detachable recovery box is arranged at the bottom of the fixing plate. The lifting mechanism comprises a first servo motor, a driving gear, two transmission gears and two threaded rods vertically arranged between a top plate of a top frame and a fixed plate, wherein the first servo motor is positioned between the two threaded rods and fixed at the bottom of the top plate of the top frame, the driving gear is sleeved on an output shaft of the first servo motor, the two transmission gears are respectively sleeved on the two threaded rods and correspond to the positions of the driving gears, and the driving gears are meshed with the two transmission gears. Preferably, the support plate is provided with two threaded holes corresponding to the two threaded rods, the threaded rods of the lifting mechanism are in threaded connection with the threaded holes of the support plate, the left side and the right side of the support plate are provided with connecting lug plates, and the connecting lug plates are provided with positioning through holes. Preferably, the left side wall and the right side wall of the top frame are provided with guide grooves, guide rods are symmetrically arranged in the guide grooves along the length direction of the guide grooves, and the support plates are in sliding connection with the guide rods of the top frame through positioning through holes. The fixing plate is provided with a first mounting hole corresponding to the position of the threaded rod, the top plate of the top frame is provided with a second mounting hole corresponding to the position of the threaded rod, bearings are arranged in the first mounting hole and the second mounting hole, two ends of the threaded rod are respectively connected with the top plate of the top frame and the mounting hole of the fixing plate in a rotating mode through the bearings, and a recovery port is arranged in the center of the fixing plate and communicated with the recovery box. And the top of the impact block is provided with a connecting rod, one end of the connecting rod, which is far away from the impact block, is provided with a clamping block, and the rod diameter size of the connecting rod is smaller than the outer diameter size of the clamping block. The clamping mechanism is arranged in the middle of the bottom of the support plate along the width direction of the support plate and comprises a second servo motor, a screw rod, a first clamping piece and a second clamping piece, the screw rod adopts a double-rotation-direction screw rod and