Brake shoe detection device

Abstract

The utility model discloses a brake shoe detection device, which belongs to the technical field of brake shoe detection and comprises a bottom frame, the top end of the bottom frame is connected with a top plate through a plurality of straight rods, is fixedly provided with two fixed plates and is provided with two movable plates and a circular ring, and the top plate is provided with a straight notch and a detection mechanism. The two movable plates are located on the outer sides of the two fixed plates correspondingly, two movable rods are fixed to the inner sides of the two movable plates correspondingly, a round rod is fixed to the bottom end of each movable plate, a pressing block is fixed to the other end of each movable rod, two opposite inclined groove openings are formed in each round ring, and a plurality of sliding rods are fixed to the bottom end of each round ring. The two round rods are located in the two inclined groove openings correspondingly. Two arc-shaped notches are further formed in the bottom frame, a bearing is fixed to the inner bottom face of the bottom frame, a driving mechanism is arranged, a rotating disc is fixedly connected to the bottom end of the sliding rod, a rotating shaft is fixed to the circle center of the bottom end of the rotating disc, and the other end of the rotating shaft is connected with the bearing; by using the device, the brake shoe is fixed more stably, and the pressure detection precision of the brake shoe is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of brake shoe detection, in particular to a brake shoe detection device. Background Art

[0002] Brake shoes are tile-shaped brake blocks made of synthetic materials. When braking, they hold the wheel tread tightly and stop the wheel from rotating through friction. In the train braking system, synthetic brake shoes are one of the key components. The braking force is applied to the synthetic brake shoes through the brake cylinder, so that the friction surface of the synthetic brake shoes contacts the train wheel tread, absorbs kinetic energy, and stops the train. In this process, the braking device converts huge kinetic energy into heat energy and dissipates it into the atmosphere. The groove in the middle of the friction surface of the synthetic brake shoe can realize chip removal and heat dissipation during friction braking. More importantly, it can solve the problem of metal inlay and scratches on the wheel tread that may occur during train braking.

[0003] At present, brake shoes need to be pressure tested before leaving the factory, but the existing brake shoe detection device cannot apply pressure to them well during the test, resulting in inaccurate detection results. Therefore, it is urgent to design a new brake shoe detection device to solve the above problem. Utility Model Content

[0004] The utility model aims to provide a brake shoe detection device to solve the problem that the existing brake shoe detection device cannot exert pressure on the brake shoe during testing, thus causing the detection result to be inaccurate.

[0005] In order to solve the above technical problems, the utility model provides a brake shoe detection device, including a bottom frame, the bottom frame is connected to a top plate through a plurality of straight rods and fixed with two fixed plates and provided with two movable plates and a circular ring, the top plate is provided with a straight notch and a detection mechanism, the two movable plates are respectively located at the outer sides of the two fixed plates and two movable rods are fixed on the inner sides thereof, a round rod is fixed at the bottom end, the movable rod is slidably connected with the fixed plate and a pressure block is fixed at the other end thereof; the circular ring is provided with two oblique notches at opposite positions and a plurality of sliding rods are fixed at the bottom ends thereof, the two round rods are respectively located in the two oblique notches and slidably connected with them; the detection mechanism includes a moving seat and a driving motor, the driving motor is fixed to the top end of the top plate, and a screw is connected to the output end thereof, the moving seat is located in the straight notch and a second hydraulic cylinder is installed at the top end thereof and an L-shaped plate is fixed, the output end of the second hydraulic cylinder passes through the moving seat and is connected with a detection head, and a pressure sensor is installed at the bottom end of the detection head; a solenoid threadedly connected with the screw is fixed at the other end of the L-shaped plate;

[0006] The bottom frame is also provided with two arc-shaped notches, and a bearing is fixed on the inner bottom surface thereof and a driving mechanism is provided. The sliding rod is slidably connected with the arc-shaped notches, and its bottom end is located in the bottom frame and fixedly connected with a turntable. A rotating shaft is fixed at the center of the bottom end of the turntable, and the other end of the rotating shaft is connected with the bearing. The driving mechanism includes a first hydraulic cylinder and a gear, and the gear is fixed on the rotating shaft. The piston rod of the first hydraulic cylinder is connected with a moving rod, and a plurality of evenly distributed racks are fixed on the moving rod near one end surface of the gear.

[0007] A support plate is fixed on the bottom frame, an arc-shaped support seat is fixed on the support plate, a brake shoe body is provided on the arc-shaped support seat, and the brake shoe body is located between the two fixed plates.

[0008] Optionally, grooves are formed on both side walls of the straight slot, guide rods are fixed in the grooves, guide blocks slidably connected to the guide rods are fixed on both sides of the movable seat, and a stop block is also fixed at the other end of the screw rod.

[0009] Optionally, a limiting block is fixed to the other end of the round rod.

[0010] The utility model provides a brake shoe detection device, which includes a bottom frame, the top of which is connected to a top plate through a plurality of straight rods and is fixed with two fixed plates and is provided with two movable plates and a circular ring, the top plate is provided with a straight slot and a detection mechanism, the two movable plates are respectively located on the outside of the two fixed plates and two movable rods are fixed on the inside thereof, a round rod is fixed at the bottom end, a pressure block is fixed at the other end of the movable rod, the circular ring has two oblique slots at opposite positions and a plurality of sliding rods are fixed at the bottom end, the two round rods are respectively located in the two oblique slots; the bottom frame is also provided with two arcuate slots and a bearing is fixed on the inner bottom surface thereof and is provided with a driving mechanism, the bottom end of the sliding rod is fixedly connected to a turntable, a rotating shaft is fixed at the center of the bottom end of the turntable, and the other end of the rotating shaft is connected to the bearing; using the device, the brake shoe is fixed more firmly, and the detection accuracy of its pressure is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the brake shoe detection device provided by the utility model;

[0012] Figure 2 It is a top view of the brake shoe detection device provided by the utility model;

[0013] Figure 3 yes Figure 2 Middle AA section view. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0017] The utility model provides a brake shoe detection device, the structure of which is as follows: Figures 1 to 3As shown, it includes a bottom frame 1, a top plate 3 is connected to the bottom frame 1 through a plurality of straight rods 2, and two fixed plates 4 are fixed thereon, and two movable plates 5 and a circular ring 8 are provided. A straight notch 23 is provided on the top plate 3 and a detection mechanism is provided. The two movable plates 5 are respectively located outside the two fixed plates 4 and two movable rods 6 are fixed inside thereof, and a round rod 10 is fixed at the bottom end. The movable rod 6 is slidably connected to the fixed plate 4 and a pressure block 7 is fixed at the other end thereof; the circular ring 8 is provided with two oblique notches 9 at opposite positions and a plurality of sliding rods 12 are fixed at the bottom end thereof, and the two round rods 10 are respectively located in the two oblique notches 9 and slidably connected thereto. The detection mechanism includes a moving seat 24 and a driving motor 25. The driving motor 25 is fixed to the top of the top plate 3, and its output end is connected to a screw 29. The moving seat 24 is located in the straight slot 23 and a second hydraulic cylinder 26 is installed on its top and an L-shaped plate 30 is fixed. The output end of the second hydraulic cylinder 26 passes through the moving seat 24 and is connected to a detection head 27. A pressure sensor 28 is installed at the bottom of the detection head 27; a solenoid 31 threadedly connected to the screw 29 is fixed at the other end of the L-shaped plate 30. The pressure sensor is connected to an external controller and transmits the value to the external controller in the form of an electrical signal. Through the driving motor 2 The output end of the second hydraulic cylinder 26 drives the screw 29 to rotate so that the L-shaped plate 30 drives the detection head 27 to move horizontally so that its detection range is wider, and the output end of the second hydraulic cylinder 26 drives the detection head 27 to move downward for close detection; the bottom frame 1 is also provided with two arc-shaped notches 11, and the inner bottom surface thereof is fixed with a bearing 14 and a driving mechanism, the sliding rod 12 is slidably connected with the arc-shaped notches 11, and the bottom end thereof is located in the bottom frame 1 and is fixedly connected with a rotating disk 13, the bottom end of the rotating disk 13 is fixed with a rotating shaft 15, and the other end of the rotating shaft 15 is connected with the bearing 14; the driving mechanism includes a first hydraulic cylinder 17 and a gear 16, the gear 16 Fixed on the rotating shaft 15, the piston rod of the first hydraulic cylinder 17 is connected with a moving rod 18, and a plurality of evenly distributed racks 19 are fixed on one end face of the moving rod 18 close to the gear 16. The piston rod of the first hydraulic cylinder 17 drives the moving rod 18 to move so that the plurality of racks 19 mesh with the gear 16 to drive the rotating shaft 15 to rotate. A support plate 21 is fixed on the bottom frame 1, and an arc-shaped support seat 20 is fixed on the support plate 21. A brake shoe body 22 is provided on the arc-shaped support seat 20. The brake shoe body 22 is located between the two fixed plates 4, and the arc-shaped support seat 20 is used to support the brake shoe body 22 and assist in fixing it. Using the brake shoe detection device, the brake shoe is fixed more firmly, ensuring the detection accuracy of its pressure.

[0018] Furthermore, grooves 32 are formed on both side walls of the straight slot 23, guide rods 33 are fixed in the grooves 32, guide blocks 34 slidably connected to the guide rods 33 are fixed on both sides of the movable seat 24 to assist the movable seat 24 in stable movement, and a stopper 35 is fixed at the other end of the screw rod 29 to prevent the screw tube 31 from being disconnected from the screw rod 29.

[0019] Furthermore, a limiting block 36 is fixed to the other end of the round rod 10 to limit the round rod 10 and prevent it from being disconnected from the inclined slot 9.

[0020] The working principle of the utility model is as follows: first, the brake shoe body 22 is placed on the arc-shaped support seat 20, and then the first hydraulic cylinder 17 is started, and its piston rod drives the moving rod 18 to move so that a plurality of racks 19 are meshed with the gear 16 to drive the rotating shaft 15 to rotate. At this time, the turntable 13 drives the ring 8 to rotate through a plurality of slide rods 12. At this time, under the limit of the two inclined slots 9, the two round rods 10 both drive the moving plate 5 and the two pressure blocks 7 to move inward to fix and tighten the brake shoe body 22, which is fixed more firmly to ensure the detection accuracy of its pressure; then the driving motor 25 is started, and its output end drives the screw 29 to rotate so that the L-shaped plate 30 drives the detection head 27 to move horizontally to the top of the brake shoe body 22, and finally the second hydraulic cylinder 26 is started, and its output end drives the detection head 27 and the pressure sensor to move downward to perform pressure detection on the brake shoe body.

[0021] The above description is only a description of the preferred embodiment of the utility model, and is not any limitation on the scope of the utility model. Any changes and modifications made by ordinary technicians in the field of the utility model based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A brake shoe detection device, comprising a bottom frame (1), characterized in that: The bottom frame (1) is connected to a top plate (3) through a plurality of straight rods (2) and is fixed with two fixed plates (4) and is provided with two movable plates (5) and a circular ring (8); the top plate (3) is provided with a straight slot (23) and is provided with a detection mechanism; the two movable plates (5) are respectively located on the outside of the two fixed plates (4) and are each fixed with two movable rods (6) on their inner sides; a round rod (10) is fixed at the bottom end; the movable rod (6) is slidably connected to the fixed plate (4) and a pressure block (7) is fixed at the other end; the circular ring (8) is provided with two oblique slots (9) at opposite positions and is each fixed with a plurality of sliding rods (12) at its bottom end; the two round rods (10) are respectively located at the outside of the two fixed plates (4) and are each fixed with two movable rods (6) on their inner sides; a pressure block (7) is fixed at the other end of the movable rod (6); The detection mechanism comprises a moving seat (24) and a driving motor (25), wherein the driving motor (25) is fixed to the top of the top plate (3), and its output end is connected to a screw rod (29); the moving seat (24) is located in the straight slot (23) and a second hydraulic cylinder (26) is installed on its top and an L-shaped plate (30) is fixed thereto; the output end of the second hydraulic cylinder (26) passes through the moving seat (24) and is connected to a detection head (27), and a pressure sensor (28) is installed at the bottom of the detection head (27); a solenoid (31) threadedly connected to the screw rod (29) is fixed at the other end of the L-shaped plate (30); The bottom frame (1) is also provided with two arc-shaped notches (11), and a bearing (14) is fixed on the inner bottom surface thereof and a driving mechanism is provided. The sliding rod (12) is slidably connected to the arc-shaped notches (11), and its bottom end is located in the bottom frame (1) and is fixedly connected to a rotating disk (13). A rotating shaft (15) is fixed at the center of the bottom end of the rotating disk (13), and the other end of the rotating shaft (15) is connected to the bearing (14). The driving mechanism comprises a first hydraulic cylinder (17) and a gear (16), wherein the gear (16) is fixed on the rotating shaft (15), and a piston rod of the first hydraulic cylinder (17) is connected to a moving rod (18), and a plurality of evenly distributed racks (19) are fixed to one end surface of the moving rod (18) close to the gear (16). A support plate (21) is fixed on the bottom frame (1), an arc-shaped support seat (20) is fixed on the support plate (21), a brake shoe body (22) is provided on the arc-shaped support seat (20), and the brake shoe body (22) is located between the two fixing plates (4).

2. The brake shoe detection device according to claim 1, characterized in that: The two side walls of the straight slot (23) are provided with grooves (32), in which guide rods (33) are fixed, and guide blocks (34) slidably connected to the guide rods (33) are fixed on both sides of the movable seat (24), and a stopper (35) is also fixed on the other end of the screw rod (29).

3. The brake shoe detection device according to claim 1, characterized in that: A limiting block (36) is fixed to the other end of the round rod (10).

Images