CN220650077U

CN220650077U - Fatigue endurance test device for tread cleaner

Info

Publication number: CN220650077U
Application number: CN202322312575.4U
Authority: CN
Inventors: 朱耀; 庞金元; 刘兴明; 王文渊
Original assignee: Nanjing Guangdao Industry And Trade Co ltd
Current assignee: Nanjing Guangdao Industry And Trade Co ltd
Priority date: 2023-08-28
Filing date: 2023-08-28
Publication date: 2024-03-22
Anticipated expiration: 2033-08-28

Abstract

The utility model relates to a tread sweeper fatigue endurance test device, it relates to tread and cleans technical field, and it includes hold-down mechanism, mount pad, wheel movement track length detection device, simulation wheel and wheel drive arrangement, hold-down mechanism sets up the side of simulation wheel, the mount pad with hold-down mechanism connects, so as to be in hold-down mechanism's promotion is down the wheel tread direction removal of simulation wheel, wheel drive arrangement with simulation wheel is connected, so as to be able to drive the rotation of simulation wheel, wheel movement track length detection device is adjacent the simulation sets up, so as to be able to detect the length of wheel tread movement track. The method has the effect of reducing the workload of workers.

Description

Fatigue endurance test device for tread cleaner

Technical Field

The application relates to the technical field of tread cleaning, in particular to a fatigue endurance test device of a tread cleaner.

Background

Along with the development of society, more and more people select trains or high-speed rails to travel, the trains and the high-speed rails have high speed and high quality, the running safety of the trains and the high-speed rails is required to be guaranteed in the running process of the trains and the high-speed rails, the maintenance of the wheels is an indispensable part of the running safety, and the maintenance of the wheels comprises periodic cleaning work of the wheels.

In order to avoid spin and slip of the wheel during high-strength operation of the wheel, dust, rust, grease and the like adhering to the tread of the wheel are generally wiped off by the tread cleaning device, and when the wheel needs to be cleaned, dirt on the wheel is cleaned by pressing a brake shoe of the tread cleaning device on the tread along with rotation of the wheel. When the service life of the brake shoe is generally reached, the brake shoe can lose the original working effect and needs to be replaced

At present, no special device for fatigue endurance test of the tread cleaner exists in the market, a worker is required to frequently check the abrasion condition of the brake shoe, the workload of the worker is increased, and if the brake shoe is not replaced in time, the wheel cannot be cleaned effectively.

Disclosure of Invention

In order to solve the problem that frequent checking of brake shoes increases staff's work load, the application provides a tread sweeper fatigue endurance test device.

The tread sweeper fatigue endurance test device provided by the application adopts the following technical scheme:

the utility model provides a tread sweeper fatigue endurance test device, includes hold-down mechanism, mount pad, wheel motion trail length detection device, simulation wheel and wheel drive arrangement, hold-down mechanism sets up the side of simulation wheel, the mount pad with hold-down mechanism connects, so as to be in hold-down mechanism's promotion is down the wheel tread direction removal of simulation wheel, wheel drive arrangement with the simulation wheel is connected, so as to be able to drive the rotation of simulation wheel, wheel motion trail length detection device is adjacent the simulation sets up, so as to be able to detect the length of wheel tread motion trail.

By adopting the technical scheme, the brake shoe to be tested can be fixed by using the mounting seat connected with the compressing mechanism, and the brake shoe is pushed to be compressed on the tread of the wheel; and measuring the length of the wheel movement track from use to damage by using the wheel movement track length detection device, so as to obtain the service life of the brake shoe.

In a specific embodiment, the wheel driving device comprises a motor and a speed reducer, wherein the motor is in driving connection with the speed reducer, and an output shaft of the speed reducer is fixedly connected with the simulated wheel.

Through adopting above-mentioned technical scheme, utilize motor and speed reducer, can drive the rotation of simulation wheel, be convenient for control the rotational speed of simulation wheel.

In a specific implementation manner, the compressing mechanism comprises a compressing seat and a compressing device, the compressing device is arranged on the compressing seat, the compressing device is arranged as a compressing cylinder, a piston rod of the compressing cylinder is slidably connected with the mounting seat, and a spring is arranged between the compressing cylinder and the mounting seat.

Through adopting above-mentioned technical scheme, utilize the spring that sets up between compressing tightly seat and mount pad, can be when the cylinder is released the piston rod and is driven the mount pad motion, buffer the impact force when the brake shoe of installing on the brake head and the impact of wheel tread, avoid causing the damage to the brake shoe.

In a specific implementation manner, the device further comprises a pressing force adjusting mechanism, wherein the pressing force adjusting mechanism comprises a screw motor, a screw and a screw sliding block, the screw sliding block is screwed on the screw, the screw motor is in driving connection with the screw, and the pressing seat is fixedly connected with the screw sliding block.

Through adopting above-mentioned technical scheme, utilize the pressure tight mechanism of adjusting of being connected with the seat that compresses tightly, can control the position of compressing tightly the seat, the regulating spring compresses tightly the brake shoe on the clamping force on the wheel tread.

In a specific embodiment, the mounting base is provided with a connector, and the connector is provided with a connector screw hole for connecting with the brake head.

Through adopting above-mentioned technical scheme, utilize the connector screw that sets up on the connector, be convenient for connect the brake head on the mount pad.

In a specific embodiment, one side of the brake head adjacent to the mounting seat is provided with an upper connecting part and a lower connecting part, the connector is arranged between the upper connecting part and the lower connecting part, the upper connecting part and the lower connecting part are provided with connecting part through holes opposite to the connector screw holes, and the connection between the mounting seat and the brake head is formed by passing through the connecting part through holes and the connector screw holes through fixing bolts; a first shock pad is arranged between the fixing bolt and the hole wall of the connector screw hole; and second shock-proof pads are arranged between the connector and the upper connecting part and between the connector and the lower connecting part.

By adopting the technical scheme, the first shock pad arranged at the joint of the connector and the brake head can be used for relieving the vertical runout of the wheel along the axis of the bolt, so that the condition that the compaction force of the compaction mechanism is negligent and negligent is avoided, the brake shoe is impacted, and the brake shoe is damaged; the second shock pad arranged at the joint of the connector and the brake head can be used for relieving the jumping of the wheel along the axial direction of the bolt, and avoiding the lateral force generated by the pedal of the wheel to the brake shoe to cause the damage of the brake shoe.

In a specific implementation manner, the pressing mechanism is provided with a supporting rod through hole, the supporting rod penetrates through the supporting rod through hole and is in sliding connection with the pressing mechanism, and one end, far away from the pressing mechanism, of the supporting rod is in rotary connection with the brake head.

Through adopting above-mentioned technical scheme, utilize the bracing piece that sets up on hold-down mechanism, can restrict the torsion of brake shoe, avoid forming the side direction effort between brake shoe and the wheel tread, cause the damage to the brake shoe.

In a specific embodiment, the wheel movement track length detection device is configured as a displacement sensor, and the detection head of the displacement sensor is directed to the wheel tread of the simulated wheel.

By adopting the technical scheme, the displacement sensor is utilized, so that the length of the movement track of the wheel can be directly measured from the use of the brake shoe to the simulation of the damage period of the brake shoe, and the service life of the brake shoe can be obtained.

In a specific embodiment, the wheel rotation distance detection device comprises a photoelectric sensor for counting and a cursor, wherein the photoelectric sensor is fixedly arranged, the cursor is arranged on the side edge of the wheel tread of the simulated wheel, and the photoelectric sensor can identify the cursor.

Through adopting above-mentioned technical scheme, utilizing photoelectric sensor and cursor, can measuring the brake shoe and use the number of turns of the analog wheel in the period of damaging to according to the girth of wheel, calculate the motion track length of analog wheel, obtain the life of brake shoe.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the brake shoe fixed on the brake shoe head is pressed on the tread of the wheel of the simulated wheel through the pressing device and the mounting seat, the abrasion condition of the brake shoe when the wheel moves is simulated, the length of the movement track of the wheel is measured through the wheel movement track length measuring device until the new brake shoe is damaged, and the service life of the brake shoe is calculated;

2. the brake shoe can be pressed on the tread of the wheel through the pressing force adjusting device, and the pressing force of the spring can be adjusted by controlling the position of the screw rod sliding block so as to press the brake shoe on the tread of the wheel;

3. the first shock pad arranged at the joint of the connector and the brake head can relieve the vertical runout of the wheel along the axis of the bolt, so that the condition that the compaction force of the compaction mechanism is negligent and negligent is avoided, the brake shoe is impacted, and the brake shoe is damaged is avoided; through the second antivibration pad of setting up in connector and brake head junction, can be used for alleviating the wheel and follow the axial of bolt and beat, avoid the wheel pedal to produce the lateral force to the brake shoe, cause the damage of brake shoe.

Drawings

FIG. 1 is a schematic view of an example 1 of a fatigue durability test apparatus for a tread cleaner according to the present application.

FIG. 2 is a cross-sectional view of the joint of example 1 and the brake head of the tread cleaner fatigue durability test device of the present application.

FIG. 3 is a schematic view of example 2 of the fatigue durability test apparatus for a tread cleaner of the present application.

Reference numerals illustrate: 1. a compressing mechanism; 11. a compressing seat; 12. a compacting device; 121. a cylinder; 13. a pressing force adjusting mechanism; 131. a screw motor; 132. a screw rod; 133. a screw rod sliding block; 14. a support rod; 15. a support rod through hole; 2. a mounting base; 21. a connector; 3. a wheel movement track length detection device; 31. a displacement sensor; 32. a photoelectric sensor; 33. a cursor; 4. simulating a wheel; 5. a wheel driving device; 51. a motor; 52. a speed reducer; 6. a brake head; 61. an upper connection part; 62. a lower connecting part; 7. a first crash pad; 8. and a second vibration-proof pad.

Detailed Description

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; either directly or indirectly via an intermediate medium, or in communication with each other or in interaction with each other. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this specification, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, and thus features defining "first," "second," or the like, may explicitly or implicitly include one or more of such features.

The embodiment of the application discloses a tread sweeper fatigue endurance test device.

Example 1

As shown in fig. 1, the fatigue endurance test device of the tread sweeper comprises a pressing mechanism 1, a mounting seat 2, a wheel movement track length detection device 3, a simulated wheel 4, a wheel driving device 5 and a base. The compressing mechanism 1 comprises a compressing seat 11, an air cylinder 121, a screw motor 131, a screw 132 and a screw slider 133, wherein the screw motor 13, the screw 132 and the screw slider are fixedly arranged on an adjusting seat, an output shaft of the screw motor 131 is connected with the screw 132, the adjusting seat is arranged on a base, two baffles are arranged on the adjusting seat, the screw 132 penetrates through the first baffle and extends to a position close to the second baffle, the screw slider 133 is arranged between the two baffles and is screwed on the screw 132, the compressing seat 11 is fixedly connected on the screw slider 133, the compressing air cylinder 121 is fixedly connected on the compressing seat 11, a piston rod of the compressing air cylinder 121 is in sliding connection with a mounting seat 2, a spring is arranged between the compressing air cylinder 121 and the mounting seat 2, one end of the spring is propped against the compressing air cylinder 121, the other end of the spring is propped against the mounting seat 2, and a brake shoe holder 6 for mounting a brake shoe is fixedly arranged on the mounting seat 2.

The wheel driving device 5 includes a motor 51 and a speed reducer 52, the motor 51 and the speed reducer 52 are both fixed on the base, the motor 51 is connected with the speed reducer 52 through a rotating shaft, and an output shaft of the speed reducer 52 passes through the axle center of the simulated wheel 4 to be connected with the simulated wheel 4. The control compacting cylinder 121 pushes out the piston rod to drive the mounting seat 2 and the brake head 6 fixedly connected to the mounting seat 2 to move towards the tread of the simulated wheel 4. The displacement sensor 31 is provided on the base, and the detection head of the displacement sensor 31 is directed to the tread of the simulated wheel 4.

As shown in fig. 2, the mounting base 2 is provided with a connector 21, the connector 21 is a rectangular metal block, two connector 21 screw holes are formed in the connector 21, one side of the brake head 6 close to the connector 21 is provided with an upper connecting portion 61 and a lower connecting portion 62, the upper connecting portion 61 and the lower connecting portion 62 are two parallel metal sheets, and connecting sleeve screw holes through which bolts can pass are correspondingly formed in the upper connecting portion 61 and the lower connecting portion 62. After the connecting head 21 is installed between the upper connecting portion 61 and the lower connecting portion 62, the connecting head 21 and the brake head 6 can be fixedly connected together by bolts passing through screw holes of the three. Meanwhile, the first shock pad 7 is arranged on the inner wall of a screw hole of the connector 21 for installing a bolt, and the first shock pad 7 can reduce impact vibration generated in the movement process of the piston rod, and is mainly used for relieving the transverse impact vibration of the bolt; the second crash pad 8 is installed at both the position above the connection head 21 and contacting the upper connection portion 61 and the position below the connection head 21 and contacting the lower connection portion 62, and the second crash pad 8 can prevent the connection head 21 from directly contacting the upper connection portion 61 and the lower connection portion 62, so as to alleviate the impact vibration of the bolt vertically.

The implementation principle of the tread cleaning device fatigue endurance test device of the embodiment of the application is as follows: the motor 51 is started, the simulated wheel 4 is driven to rotate through the motor 51 and the speed reducer 52, a brake shoe is mounted on the brake head 6, the compression cylinder 121 is controlled to push out a piston rod, the brake shoe mounted on the brake head 6 is pressed on the wheel tread of the simulated wheel 4, the screw motor 131 is started, the screw 132 is controlled to rotate, the position of the screw slider 133 is adjusted, the compression cylinder 121 is driven, the compression degree of the spring is adjusted, the brake shoe is pressed on the wheel tread through proper compression force, the displacement sensor 31 is started, the length of a wheel movement track from the use of a new brake shoe to the damage is measured, and the service life of the brake shoe is obtained.

Example 2

Referring to fig. 3, this embodiment is different from embodiment 1 in that: the provided wheel rotation distance detection device comprises a photoelectric sensor 32 for counting and a cursor 33, wherein the photoelectric sensor 32 is fixedly arranged on a base, and the cursor 33 is arranged on the side edge of the tread of the wheel 4.

The implementation principle of the embodiment of the application is different from that of embodiment 1 in that: the photoelectric sensor 32 is matched with the cursor 33, the rotation number of the simulated wheel 4 when the test device works is calculated, and the length of the wheel movement track is calculated through the rotation number, so that the service life of the brake shoe is obtained.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a tread sweeper fatigue endurance test device which characterized in that: including hold-down mechanism (1), mount pad (2), wheel motion trail length detection device (3), simulation wheel (4) and wheel drive arrangement (5), hold-down mechanism (1) set up the side of simulation wheel (4), mount pad (2) with hold-down mechanism (1) are connected, so as to be in push down of hold-down mechanism (1) to the wheel tread direction of simulation wheel (4) removes, wheel drive arrangement (5) with simulation wheel (4) are connected, so as to be able to drive simulation wheel (4) are rotatory, wheel motion trail length detection device (3) are adjacent the simulation sets up, so as to be able to detect the length of wheel tread motion trail.

2. The tread cleaner fatigue durability test apparatus according to claim 1, wherein: the wheel driving device (5) comprises a motor (51) and a speed reducer (52), the motor (51) is in driving connection with the speed reducer (52), and an output shaft of the speed reducer (52) is fixedly connected with the simulated wheel (4).

3. The tread cleaner fatigue durability test apparatus according to claim 1, wherein: the compressing mechanism (1) comprises a compressing seat (11) and a compressing device (12), the compressing device (12) is arranged on the compressing seat (11), the compressing device (12) is arranged to compress a cylinder (121), a piston rod of the compressing cylinder (121) is slidably connected with the mounting seat (2), and a spring is arranged between the compressing cylinder (121) and the mounting seat (2).

4. The tread cleaner fatigue durability test apparatus according to claim 3 wherein: the device is characterized by further comprising a pressing force adjusting mechanism (13), wherein the pressing force adjusting mechanism (13) comprises a screw motor (131), a screw (132) and a screw slider (133), the screw slider (133) is screwed on the screw (132), the screw motor (131) is in driving connection with the screw (132), and the pressing seat (11) is fixedly connected with the screw (132) slider.

5. The tread cleaner fatigue durability test apparatus according to claim 1, wherein: the mounting seat (2) is provided with a connector (21), and the connector (21) is provided with a connector (21) through hole for being connected with the brake head (6).

6. The tread cleaner fatigue durability test apparatus according to claim 5, wherein: the brake head (6) is provided with an upper connecting part (61) and a lower connecting part (62) at one side adjacent to the mounting seat (2), the connector (21) is arranged between the upper connecting part (61) and the lower connecting part (62), the upper connecting part (61) and the lower connecting part (62) are provided with connecting part through holes opposite to the connecting part (21) through holes, and the connection between the mounting seat (2) and the brake head (6) is formed by passing through the connecting part through holes and the connecting part (21) through holes through fixing bolts; a first shock-proof pad (7) is arranged between the fixing bolt and the hole wall of the through hole of the connector (21); and a second shock pad (8) is arranged between the connector (21) and the upper connecting part (61) and between the connector and the lower connecting part (62).

7. The tread cleaner fatigue durability test apparatus according to claim 6, wherein: be provided with bracing piece (14) on hold-down mechanism (1), be provided with bracing piece (14) through-hole on hold-down mechanism (1), bracing piece (14) pass bracing piece (14) through-hole with hold-down mechanism (1) sliding connection, bracing piece (14) are kept away from hold-down mechanism (1) one end with brake head (6) rotation is connected.

8. The tread cleaner fatigue durability test apparatus according to claim 1, wherein: the wheel movement track length detection device (3) is arranged as a displacement sensor (31), and a detection head of the displacement sensor (31) points to the wheel tread of the simulated wheel (4).

9. The tread cleaner fatigue durability test apparatus according to claim 1, wherein: the wheel rotation distance detection device comprises a photoelectric sensor (32) and a cursor (33), wherein the photoelectric sensor (32) is used for counting, the photoelectric sensor (32) is fixedly arranged, the cursor (33) is arranged on the side edge of the wheel tread of the simulated wheel (4), and the photoelectric sensor (32) can identify the cursor (33).