CN223841742U

CN223841742U - Metal slide friction coefficient tester for bridge beam supports

Info

Publication number: CN223841742U
Application number: CN202520203339.5U
Authority: CN
Inventors: 王佳栋
Original assignee: Shaoxing Jiaoke Engineering Inspection Co ltd
Current assignee: Shaoxing Jiaoke Engineering Inspection Co ltd
Priority date: 2025-02-08
Filing date: 2025-02-08
Publication date: 2026-01-27
Anticipated expiration: 2035-02-08

Abstract

The utility model relates to the technical field of friction performance testing equipment, in particular to a metal sliding plate friction coefficient tester for a bridge support, which comprises a detection table, a bearing device, a sliding plate fixing device and a material fixing device, wherein a support frame is arranged at one end of the top wall of the detection table, three groups of material fixing devices are arranged at the left end and the right end of the top wall of the detection table, the sliding device is arranged on the outer wall of the support frame, a sensor is arranged at the output end of the sliding device in a penetrating way through the side wall of the support frame, the output end of a lifting cylinder drives a balancing weight to descend until contacting the top wall of the metal sliding plate, a preset pressure is applied, the actual working state of the bridge support is simulated, the sliding device drives the sliding plate fixing device to slide relatively, and meanwhile, a first motor drives a threaded rod to rotate so as to drive the sliding block to move along the same motion track as the sliding device, and the friction condition under the actual working condition is simulated.

Description

Metal slide friction coefficient tester for bridge beam supports

Technical Field

The utility model relates to the technical field of friction performance testing equipment, in particular to a metal sliding plate friction coefficient tester for a bridge support.

Background

As is well known, bridge supports are key components in bridge structures, the performance of which directly affects the safety and durability of the entire bridge, wherein metal skateboards are important components of bridge supports, the friction characteristics of which are critical to ensure the normal operation of the bridge under various conditions, and therefore, accurate measurement of the friction coefficient between the metal skateboards and other materials is a key link for bridge design, material selection and quality control.

Many traditional test equipment are difficult to accurately simulate various vertical loads born by the bridge support in an actual working state, so that deviation exists between a test result and an actual condition, the application range of the equipment is limited, the fixing mode of part of the test equipment on the metal sliding plate and the matched materials is not stable enough, a sample is easily displaced or loosened in the test process, and the accuracy and repeatability of experimental data are affected.

Disclosure of utility model

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a friction coefficient tester for a metal sliding plate for a bridge support.

(II) technical scheme

In order to achieve the purpose, the technical scheme is that the metal sliding plate friction coefficient tester for the bridge support comprises a detection table, a bearing device, a sliding plate fixing device and a material fixing device, wherein a support frame is installed at one end of the top wall of the detection table, three groups of material fixing devices are installed at the left end and the right end of the top wall of the detection table, the sliding device is installed on the outer wall of the support frame, the output end of the sliding device penetrates through the side wall of the support frame to be provided with a sensor, one end of the sensor, far away from the sliding device, is provided with the sliding plate fixing device, the bottom wall of the support frame is provided with the bearing device, the bearing device comprises a groove, a threaded rod, a first motor, a movable seat, a lifting cylinder and a balancing weight, the groove is installed in the bottom wall of the support frame, the first motor is installed on the side wall of one end of the top wall of the support frame, the threaded rod penetrates through the side wall of the support frame to be connected with the threaded rod, the movable seat is installed on the threaded rod, the bottom wall of the movable seat is installed on the threaded rod, the lifting cylinder is installed on the threaded rod is installed on the bottom wall of the threaded rod, and the lifting cylinder is installed on the bottom wall of the lifting cylinder is installed on the lifting cylinder.

In order to fix a metal sliding plate, the improvement of the utility model is that the sliding plate fixing device comprises a rectangular block, a rectangular groove, a bidirectional screw rod, a second motor, a sliding block and a clamping plate, wherein the rectangular block is arranged on the side wall of the sensor, the rectangular groove is formed in one end of the rectangular block far away from the sensor, the bidirectional screw rod is rotatably arranged in the rectangular groove, one end of the bidirectional screw rod penetrates through the side wall of the rectangular block to be provided with the second motor, the sliding block is arranged at the left end and the right end of the bidirectional screw rod, and the clamping plate is arranged on the outer wall of the sliding block.

In order to fix the corresponding contact material, the material fixing device is improved by the utility model, and comprises a fixing frame, a fixing screw and a fixing plate, wherein the fixing frame is arranged on the top wall of the detection table, the fixing screw is arranged on the top wall of the fixing frame in a threaded manner, and the fixing plate is arranged at the bottom end of the fixing screw through a bearing.

Preferably, the sliding device is an electric telescopic rod.

Preferably, the utility model is improved in that the support frame is of L-shaped design.

Preferably, the utility model is improved in that the first motor and the second motor are servo motors.

Preferably, the utility model is improved in that the four corners of the bottom end of the detection table are provided with supporting legs.

Preferably, the utility model is improved in that a knob is arranged at the top end of the threaded rod.

(III) beneficial effects

Compared with the prior art, the utility model provides a friction coefficient tester for a metal sliding plate for a bridge support, which has the following beneficial effects:

According to the metal sliding plate friction coefficient tester for the bridge support, through the arranged bearing device, the lifting cylinder and the balancing weight in the bearing device are designed, vertical load applied to the metal sliding plate can be easily adjusted in the testing process, different stress conditions of the bridge support in actual work can be accurately simulated through adjusting the position of the balancing weight or increasing and decreasing the balancing weight, accordingly testing accuracy and practicality are improved, the threaded rod in the bearing device and the first motor are combined, the movable seat is driven to move to a preset position along the groove, the adjustment of the horizontal position becomes simple and rapid, different testing requirements are met, the bearing device and the sliding device work cooperatively, friction conditions of the metal sliding plate of the bridge support under actual working conditions can be simulated, the sliding device drives the sliding plate fixing device to slide relatively, meanwhile, the first motor drives the threaded rod to rotate so as to drive related parts to move, the testing process is closer to the pressure conditions born by actual use, and reliability of testing results is improved.

This bridge support is with metal slide coefficient of friction tester utilizes the rotation angle and the speed of second motor accurate control bi-directional screw rod through the slide fixing device who sets up to realize the fine setting to grip block position, this has ensured that the metal slide can be fixed by accuracy and stability, has improved the accuracy of experimental result, and this design allows to change the metal slide of equidimension and shape, only need adjust bi-directional screw rod can easily change the distance between the grip block, has improved commonality and the flexibility of equipment.

According to the metal sliding plate friction coefficient tester for the bridge support, through the arranged material fixing device, the fixing plate moves downwards and contacts the surface of the matched material by manually rotating the fixing screw, and the metal sliding plate friction coefficient tester is firmly fixed on the detection table by applying proper pressure, so that the material is prevented from displacement or loosening in the whole testing process.

Drawings

FIG. 1 is a schematic view of a first angular perspective structure of the present utility model;

FIG. 2 is a schematic view of a second angle perspective structure of the present utility model;

FIG. 3 is a schematic view of a third angular perspective structure of the present utility model;

Fig. 4 is a schematic perspective view of a carrying device according to the present utility model.

The device comprises a detection table 1, a sliding device 2, a support frame 3, a sensor 4, a groove 5, a 6, a threaded rod 7, a first motor 8, a movable seat 9, a lifting cylinder 10, a balancing weight 11, a control panel 12, a rectangular block 13, a rectangular groove 14, a bidirectional screw rod 15, a second motor 16, a sliding block 17, a clamping plate 18, a fixed frame 19, a fixed screw rod 20, a fixed plate 21, a supporting leg 22 and a knob.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a tester for friction coefficient of a metal slide plate for a bridge support comprises a detection table 1, a bearing device, a sliding device 2, a slide plate fixing device and a material fixing device, wherein a support frame 3 is installed at one end of the top wall of the detection table 1, three groups of material fixing devices are installed at the left end and the right end of the top wall of the detection table 1, the sliding device 2 is installed on the outer wall of the support frame 3, an output end of the sliding device 2 penetrates through the side wall of the support frame 3, a sensor 4 is installed at one end of the sensor 4 far away from the sliding device 2, the slide plate fixing device is installed at one end of the support frame 3, the bearing device comprises a groove 5, a threaded rod 6, a first motor 7, a movable seat 8, a lifting cylinder 9 and a balancing weight 10, the groove 5 is formed in the bottom wall of the support frame 3, the threaded rod 6 is rotatably installed in the groove 5, a first motor 7 is installed at one end side wall of the top wall of the support frame 3, an output end of the first motor 7 penetrates through the side wall of the support frame 3 and is connected with the side wall of the support frame 6, a sensor 4 is installed at one end of the bridge seat 6, a material is matched with the threaded rod 8 at one end of the top wall of the support frame, and then the other end of the bridge support frame is matched with the material fixing device is installed at the other end of the top wall by the threaded rod, the top wall of the support frame 3, the material fixing device is matched with the material fixing device, and the material fixing device is placed at the bottom end of the top wall through the lifting seat 1, and the top seat is preferably moved by the threaded seat 1, and the material fixing device is preferably fixed by the material fixing device is installed at the bottom seat 1 through the top seat 5, and the top seat 5 is fixed by the top end is first seat 5, and the material fixing device is made by the material fixing device is suitable device is made by the lifting device and the lifting device has top device has good quality material mounting device and has quality is made. The experimental parameters are set through the control panel 11, including vertical load (through adjusting the position or weight of balancing weight 10), sliding speed etc., start first motor 7, drive threaded rod 6 rotation, make movable seat 8 remove to predetermined position along recess 5, start lift cylinder 9, lift cylinder 9's output drives balancing weight 10 decline, until touching the roof of metal slide, and apply predetermined pressure, simulate bridge support's actual operating condition, slider 2 drive slide fixing device carries out the relative slip, simultaneously first motor 7 drive threaded rod 6 rotation drive slider 16 remove along rectangular channel 13 and slider 2 the same motion track, simulate the frictional condition under the actual operating condition, sensor 4 real-time recording frictional force data that produces in the friction course, these data are shown and the storage through control panel 11, for subsequent analysis uses, through adjusting balancing weight 10's position and weight, can easily change the vertical load of applys, simultaneously, first motor 7 driven threaded rod 6 design makes adjustment horizontal position become simple and swift, adapt to different test demands, the design structure, each part modularization, convenience inspection and maintenance.

In the practical use process, the metal slide plate is further fixed, in this embodiment, the slide plate fixing device comprises a rectangular block 12, a rectangular groove 13, a bidirectional screw 14, a second motor 15, a slide block 16 and a clamping plate 17, the rectangular block 12 is installed on the side wall of the sensor 4, the rectangular groove 13 is opened at one end of the rectangular block 12 far away from the sensor 4, the bidirectional screw 14 is rotatably installed in the rectangular groove 13, the second motor 15 is installed at one end of the bidirectional screw 14 penetrating through the side wall of the rectangular block 12, the slide block 16 is installed at the left end and the right end of the bidirectional screw 14, the clamping plate 17 is installed on the outer wall of the slide block 16, after a proper bridge support metal slide plate sample is placed on the top wall of a corresponding detection material, the slide device 2 is started, the output end of the sliding device 2 drives the slide plate fixing device to move to one side of a proper bridge support metal slide plate sample, then the second motor 15 is started, the output end of the second motor 15 drives the bidirectional screw 14 to rotate, the two-end sliding blocks 16 are opposite along the screw thread direction, the sliding blocks 16 drive the clamping plates 17 on the outer wall to synchronously move and gradually approach and finally cling to the two sides of the metal slide plate, when the clamping plates 17 are contacted with the metal slide plate and apply proper pressure, the metal slide plate is firmly fixed between the two groups of clamping plates 17, the fixing of the metal slide plate is realized, the subsequent friction coefficient test is prepared, the rotation angle and the speed of the bidirectional screw 14 are precisely controlled by the second motor 15, the fine adjustment of the position of the clamping plates 17 is realized, the metal slide plate is ensured to be accurately and stably fixed, the design allows the metal slide plates with different sizes and shapes to be replaced, the distance between the clamping plates 17 can be easily changed by only adjusting the bidirectional screw 14, so that the universality and the flexibility of the equipment are improved.

In the practical use process, the material fixing device further fixes the corresponding contact material, in this embodiment, the material fixing device includes a fixing frame 18, a fixing screw 19 and a fixing plate 20, the fixing frame 18 is installed on the top wall of the detection platform 1, the fixing screw 19 is installed on the top wall of the fixing frame 18 through threads, the fixing plate 20 is installed on the bottom end of the fixing screw 19 through a bearing, when the corresponding detection material is placed on the detection platform 1, three groups of fixing screws 19 are manually rotated respectively, the fixing screw 19 moves downwards through the threaded structure thereof, the fixing plate 20 is connected to the bottom of the fixing screw 19 through the bearing, so that the fixing plate 20 can be guaranteed to move downwards smoothly in the vertical direction and not rotate, as the fixing screw 19 rotates continuously, the fixing plate 20 approaches gradually and finally contacts the surface of the matched material, the fixing plate is firmly fixed on the detection platform 1, after the material is confirmed to be uniformly and sufficiently compressed, the fixing screw 19 is stopped rotating, the subsequent friction coefficient test is ready to be performed, the positions of the three groups of material fixing devices are shown, one group of the material fixing devices are located at two sides of the other two sides of the fixing frame 18, which are far away from the detection platform 2 and are installed at the other two sides of the front end 18 of the fixing frame 18, which is relatively short, and the other end is located at the two sides of the opposite sides of the detection platform 18 is relatively far from the detection platform 1.

Preferably, in this embodiment, the sliding device 2 is an electric telescopic rod, which can provide very fine position adjustment capability, which is important for precisely simulating the contact and relative movement under actual conditions, and which allows the user to control the sliding distance with micrometer-scale accuracy, thereby ensuring the consistency and accuracy of each test.

Preferably, in this embodiment, the support 3 is of an L-shaped design, and the L-shaped structure has an open side design, which provides convenience for installation, debugging and subsequent maintenance, so that a technician can more easily access each component for inspection or replacement.

Preferably, in this embodiment, the first motor 7 and the second motor 15 are both servo motors, and the servo motors have a fast response time, so that the servo motors can be quickly adjusted to a required position, thereby reducing waiting time and improving working efficiency.

Preferably, in this embodiment, supporting legs 21 are all installed to the bottom four corners of detecting bench 1, and the design of supporting legs 21 helps evenly distributing the weight of whole equipment subaerial, reduces local stress concentration, and the supporting legs 21 of four corners installation can provide firm basis, prevents effectively that equipment from taking place to rock or topple over in the use.

Preferably, in this embodiment, the knob 22 is installed on the top of threaded rod 6, through knob 22, the user can conveniently manually rotate threaded rod 6 and finely tune, and knob 22 provides direct feel feedback for the process of adjusting can be intuitively felt to the operating personnel, the accurate control of being convenient for.

In order to describe the possible application scenarios, technical principles, practical embodiments, and the like of the present application in detail, the following description is made with reference to the specific embodiments and the accompanying drawings. The embodiments described herein are only for more clearly illustrating the technical aspects of the present application, and thus are only exemplary and not intended to limit the scope of the present application.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a metal slide friction coefficient tester for bridge beam supports, includes detection platform (1), bears device, slider (2), slide fixing device and material fixing device, wherein detection platform (1) roof one end is installed support frame (3), detection platform (1) roof left and right sides installs three group altogether material fixing device, support frame (3) outer wall is installed slider (2), sensor (4) are installed in the output of slider (2) run through support frame (3) lateral wall, sensor (4) are installed in the one end that is far away from slider (2) slide fixing device, install in the diapire of support frame (3) bear device, bear device includes recess (5), threaded rod (6), first motor (7), movable seat (8), lift cylinder (9) and balancing weight (10), the diapire of support frame (3) has seted up recess (5), install in rotation in recess (5) motor (6) the top wall (7) of threaded rod (7) are installed in the end that is kept away from slider (2) the support frame (7) lateral wall is installed in the threaded rod (7) lateral wall (7) is connected, the utility model discloses a detection platform, including threaded rod (6), lift cylinder (9), balancing weight (10), control panel (11) are installed to the bottom output of lift cylinder (9), threaded mounting on threaded rod (6) remove seat (8), the diapire of removing seat (8) is installed balancing weight (10).

2. The tester for friction coefficient of the metal sliding plate for the bridge support is characterized in that the sliding plate fixing device comprises a rectangular block (12), a rectangular groove (13), a bidirectional screw rod (14), a second motor (15), a sliding block (16) and a clamping plate (17), the rectangular block (12) is arranged on the side wall of the sensor (4), the rectangular groove (13) is formed in one end, far away from the sensor (4), of the rectangular block (12), the bidirectional screw rod (14) is rotatably arranged in the rectangular groove (13), the second motor (15) is arranged at one end of the bidirectional screw rod (14) penetrating through the side wall of the rectangular block (12), the sliding block (16) is arranged at the left end and the right end of the bidirectional screw rod (14), and the clamping plate (17) is arranged on the outer wall of the sliding block (16).

3. The tester for friction coefficient of the metal sliding plate for the bridge support is characterized in that the material fixing device comprises a fixing frame (18), a fixing screw rod (19) and a fixing plate (20), the fixing frame (18) is installed on the top wall of the detection table (1), the fixing screw rod (19) is installed on the top wall of the fixing frame (18) in a threaded mode, and the fixing plate (20) is installed at the bottom end of the fixing screw rod (19) through a bearing.

4. The tester for the friction coefficient of the metal sliding plate for the bridge support, which is disclosed in claim 3, is characterized in that the sliding device (2) is an electric telescopic rod.

5. The tester for the friction coefficient of the metal sliding plate for the bridge support, which is disclosed in claim 4, is characterized in that the supporting frame (3) is L-shaped.

6. The tester for friction coefficient of the metal sliding plate for the bridge support according to claim 5, wherein the first motor (7) and the second motor (15) are servo motors.

7. The tester for the friction coefficient of the metal sliding plate for the bridge support, which is disclosed in claim 6, is characterized in that supporting legs (21) are arranged at four corners of the bottom end of the detection table (1).

8. The tester for the friction coefficient of the metal sliding plate for the bridge support according to claim 7, wherein the top end of the threaded rod (6) is provided with a knob (22).