Disassembling tool for brake shoe of subway electric passenger car

Abstract

The utility model discloses a dismounting tool for a brake shoe of a subway electric passenger car, which relates to the technical field of subway electric passenger cars and comprises a support frame, a positioning component is mounted in the support frame, a top pressing mechanism is mounted at the bottom of the support frame, and the positioning component comprises two first pressing plates and two second pressing plates. The two first pressing plates are movably installed on the rear portion of the supporting frame, the two second pressing plates are fixedly installed on the portion, close to the top end, of the rear portion of the supporting frame, tooth grooves are formed in the tops of the first pressing plates and the bottoms of the second pressing plates, and lifting grooves are formed in the portions, close to the two sides, of the interior of the supporting frame in a penetrating mode. Two guide rods are fixedly installed in the lifting groove, the positions, located on the front portion of the first pressing plate, of the peripheries of the two guide rods are sleeved with sliding blocks, and the positions, located on the bottoms of the sliding blocks, of the peripheries of the two guide rods are sleeved with springs. The supporting frame can be conveniently placed, taken and placed, the brake shoe can be conveniently and rapidly disassembled, the hammering operation is reduced, and the utilization rate of the internal space is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of subway electric passenger cars, in particular to a disassembly tool for brake shoes of subway electric passenger cars. Background Art

[0002] The brake shoe of a subway electric passenger car is a brake pad in the braking system. Its main function is to achieve the purpose of braking through the contact between the brake shoe and the wheel. In order to ensure the braking performance of the brake shoe, the brake shoe needs to be inspected, maintained and replaced regularly. This solution specifically involves the removal tool of the brake shoe of a subway electric passenger car;

[0003] The existing disassembly tools for subway electric passenger car brake shoes are not convenient for the placement and removal of the support frame when they are used for fixing. Due to the limited space at the brake shoe installation location, the brake shoe is mainly disassembled by hammering to remove the brake shoe chisel. The hammering operation increases the burden on the staff and is not convenient for the quick removal of the brake shoe. Utility Model Content

[0004] The main purpose of the utility model is to provide a disassembly tool for brake shoes of subway electric passenger cars, which can effectively solve the technical problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A disassembly tool for brake shoes of subway electric passenger cars comprises a support frame, a positioning assembly is installed inside the support frame, a top pressing mechanism is installed at the bottom of the support frame, the positioning assembly comprises two first pressing plates and two second pressing plates, the two first pressing plates are movably installed at the rear of the support frame, the two second pressing plates are fixedly installed at the rear of the support frame near the top end, the top of the first pressing plate and the bottom of the second pressing plate are both provided with tooth grooves, lifting grooves are opened on both sides of the interior of the support frame, two guide rods are fixedly installed inside the lifting grooves, a slider is sleeved on the periphery of the two guide rods and located in front of the first pressing plate, a spring is sleeved on the periphery of the two guide rods and located at the bottom of the slider, and the same push rod is fixedly installed at the front of the two sliders.

[0007] As a further solution of the utility model, the front surface of the support frame is rectangular, and the first pressing plate and the second pressing plate are symmetrically arranged.

[0008] As a further solution of the utility model, the sliding block is sleeved on the periphery of the guide rod to be slidably arranged, and the sliding block is fixedly installed with the first pressing plate.

[0009] As a further solution of the utility model, the sliding block is located in the lifting slot and slides up and down, and the spring is sleeved on the periphery of the guide rod and can be flexibly extended and retracted.

[0010] As a further solution of the utility model, the top pressing mechanism includes a base plate, which is fixedly installed on the bottom of the support frame, a screw sleeve is fixedly installed on the bottom of the base plate, a screw rod is movably installed inside the screw sleeve and the base plate, a knob is fixedly installed on the bottom of the screw rod, and a rubber pad is movably connected to the top of the screw rod.

[0011] As a further solution of the utility model, the screw rod passes through the screw sleeve and the interior of the bottom plate and is threadedly connected, and the top of the bottom plate is fixed to the support frame near the front end.

[0012] As a further solution of the utility model, the bottom of the rubber pad is connected to the screw rod via a bearing.

[0013] The beneficial effects of the utility model are as follows:

[0014] By setting the positioning assembly, the first pressing plate and the second pressing plate clamp the two ends of the brake shoe, so that the support frame is fixed on one side, which is convenient for positioning the support frame. The slider slides up and down under the action of the push rod and the spring, so that the distance between the first pressing plate and the second pressing plate changes, which is convenient for placing and removing the support frame;

[0015] By setting up the top pressing mechanism, the rubber pad contacts the bottom end of the brake shoe chisel, and the screw is rotated to drive the rubber pad to rise and fall under the action of the thread, which is convenient for the removal of the brake shoe chisel, convenient for the rapid disassembly of the brake shoe, and reduces the hammering operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model of a disassembly tool for brake shoes of subway electric passenger cars;

[0017] Figure 2 It is a structural schematic diagram of the positioning assembly in the utility model of the disassembly tool for the brake shoe of the subway electric passenger car;

[0018] Figure 3 The utility model is a schematic diagram of the structure of the top pressing mechanism in the disassembly tool of the brake shoe of the subway electric passenger car.

[0019] In the figure: 1. support frame; 2. positioning assembly; 3. pressing mechanism; 4. first pressing plate; 5. second pressing plate; 6. tooth groove; 7. lifting groove; 8. guide rod; 9. slider; 10. spring; 11. push rod; 12. bottom plate; 13. screw sleeve; 14. screw; 15. knob; 16. rubber pad. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1-3As shown, a disassembly tool for brake shoes of subway electric passenger cars comprises a support frame 1, a positioning assembly 2 is installed inside the support frame 1, a pressing mechanism 3 is installed at the bottom of the support frame 1, the positioning assembly 2 comprises two first pressing plates 4 and two second pressing plates 5, the two first pressing plates 4 are movably installed at the rear of the support frame 1, and the two second pressing plates 5 are fixedly installed at the rear of the support frame 1 near the top, tooth grooves 6 are provided at the top of the first pressing plates 4 and the bottom of the second pressing plates 5, lifting grooves 7 are opened on both sides of the interior of the support frame 1, two guide rods 8 are fixedly installed inside the lifting grooves 7, a slider 9 is sleeved on the periphery of the two guide rods 8 and located at the front of the first pressing plate 4, a spring 10 is sleeved on the periphery of the two guide rods 8 and located at the bottom of the slider 9, and the front of the two sliders 9 is fixedly installed with the same push rod 11.

[0022] In this embodiment, the front view of the support frame 1 is rectangular, and the first pressure plate 4 and the second pressure plate 5 are symmetrically arranged. The two ends of the brake shoe are clamped by the first pressure plate 4 and the second pressure plate 5, so that the support frame 1 is fixed to one side of the brake shoe.

[0023] In this embodiment, the slider 9 is sleeved on the outer periphery of the guide rod 8 and is slidably arranged. The slider 9 and the first pressure plate 4 are fixedly installed. The sliding of the slider 9 changes the distance between the first pressure plate 4 and the second pressure plate 5, which facilitates the placement and removal of the support frame 1.

[0024] In this embodiment, the slider 9 is located in the lifting groove 7 and slides up and down. The spring 10 is sleeved on the outer periphery of the guide rod 8 and is movable and retractable. Under the action of the spring 10, the first pressure plate 4 slides upward to clamp the two ends of the brake shoe.

[0025] In this embodiment, the pressing mechanism 3 includes a base plate 12, which is fixedly installed on the bottom of the support frame 1. A screw sleeve 13 is fixedly installed on the bottom of the base plate 12, and a screw rod 14 is movably installed inside the screw sleeve 13 and the base plate 12. A knob 15 is fixedly installed on the bottom of the screw rod 14, and a rubber pad 16 is movably connected to the top of the screw rod 14. The rubber pad 16 contacts the bottom end of the brake shoe chisel, and the rubber pad 16 is driven by the screw rod 14 to slide upward to push the brake shoe chisel out for disassembly.

[0026] In this embodiment, the screw 14 passes through the threaded sleeve 13 and the base plate 12 in a threaded connection. The top of the base plate 12 is fixed to the support frame 1 near the front end. The screw 14 is rotated and the rubber pad 16 is driven up and down under the action of the thread, which facilitates the removal of the brake shoe.

[0027] In this embodiment, the bottom of the rubber pad 16 is connected to the screw rod 14 via a bearing. When the screw rod 14 rotates, it is connected to the rubber pad 16 via the bearing to prevent the rubber pad 16 from rotating with the screw rod 14.

[0028] It should be noted that the utility model is a disassembly tool for brake shoes of subway electric passenger cars. When in use, the support frame 1 is placed on the side of the brake shoe that needs to be disassembled, the brake shoe pin ring is taken out from the brake shoe chisel, and the brake shoe is disengaged for disassembly by removing the brake shoe chisel. When positioning, the push rod 11 is pressed to make the two sliders 9 drive the two first pressure plates 4 to slide downward, the support frame 1 is located on one side of the brake shoe, and the two second pressure plates 5 are located on the top of the brake shoe. The slider 9 is driven to slide upward under the action of the spring 10, so that the first pressure plate 4 clamps the brake shoe, thereby fixing the support frame 1, and the bottom end of the brake shoe chisel contacts the rubber pad 16. When disassembling, the knob 15 is rotated to make the screw rod 14 drive the rubber pad 16 to slide upward under the action of the thread, thereby pushing the brake shoe chisel out, so that the brake shoe is disengaged from the steel back for disassembly.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A disassembly tool for brake shoes of a subway electric passenger car, comprising a support frame (1), a positioning assembly (2) is installed inside the support frame (1), and a pressing mechanism (3) is installed at the bottom of the support frame (1), characterized in that: The positioning assembly (2) comprises two first pressing plates (4) and two second pressing plates (5), wherein the two first pressing plates (4) are movably mounted at the rear of the support frame (1), and the two second pressing plates (5) are fixedly mounted at the rear of the support frame (1) near the top end, the top of the first pressing plate (4) and the bottom of the second pressing plate (5) are both provided with tooth grooves (6), and lifting grooves (7) are provided on both sides of the interior of the support frame (1), and two guide rods (8) are fixedly mounted inside the lifting grooves (7), and a slider (9) is sleeved on the periphery of the two guide rods (8) and located at the front of the first pressing plate (4), and a spring (10) is sleeved on the periphery of the two guide rods (8) and located at the bottom of the slider (9), and the front of the two sliders (9) is fixedly mounted with the same push rod (11).

2. The disassembly tool for brake shoes of subway electric passenger cars according to claim 1, characterized in that: The front surface of the support frame (1) is rectangular, and the first pressing plate (4) and the second pressing plate (5) are symmetrically arranged.

3. The disassembly tool for brake shoe of subway electric passenger car according to claim 1, characterized in that: The slide block (9) is sleeved on the periphery of the guide rod (8) in a sliding arrangement, and the slide block (9) and the first pressing plate (4) are fixedly installed.

4. The disassembly tool for brake shoes of subway electric passenger cars according to claim 1, characterized in that: The slide block (9) is located in the lifting groove (7) and slides up and down, and the spring (10) is sleeved on the outer periphery of the guide rod (8) and can be flexibly extended and retracted.

5. The disassembly tool for brake shoes of subway electric passenger cars according to claim 1, characterized in that: The pressing mechanism (3) comprises a bottom plate (12), the bottom plate (12) is fixedly mounted on the bottom of the support frame (1), a screw sleeve (13) is fixedly mounted on the bottom of the bottom plate (12), a screw rod (14) is movably mounted inside the screw sleeve (13) and the bottom plate (12), a knob (15) is fixedly mounted on the bottom of the screw rod (14), and a rubber pad (16) is movably connected to the top of the screw rod (14).

6. The disassembly tool for brake shoes of subway electric passenger cars according to claim 5, characterized in that: The screw rod (14) penetrates the screw sleeve (13) and the interior of the bottom plate (12) in a threaded connection arrangement, and the top of the bottom plate (12) and the front end are fixed to the support frame (1).

7. The disassembly tool for brake shoes of subway electric passenger cars according to claim 5, characterized in that: The bottom of the rubber pad (16) is connected to the screw rod (14) via a bearing.

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