Pressure testing tool for overhauling coupler rubber bearing of motor train unit

Abstract

The utility model provides a pressure test tool for motor train unit coupler rubber bearing maintenance, and relates to the pressure test technology field, the pressure test tool comprises a ring-type mounting rack and a pressure sensor, the pressure sensor is arranged at the middle position of the top of the ring-type mounting rack, the bottom of the ring-type mounting rack is provided with a positioning disc, and the positioning disc is provided with a pressure sensor. A rotating ring is rotationally arranged at the edge of the bottom in the positioning disc; the sleeve groove in the center of the bottom of the ring-type mounting frame is used for containing the upper end of the rubber bearing to apply pressure, the pressure sensor above the ring-type mounting frame is used for bearing pressing power from a press head of a press machine and detecting the pressure value, the rubber bearing penetrates through the through opening to be inserted into the sleeve groove when aiming at the rubber bearings with different calibers, and the rubber bearing is pressed by shifting the shifting rod. The rotating ring rotates, the linkage arm is driven to move and rotate, the positioning block is extruded to rotate to the inner side of the through opening, the rubber bearing is positioned and tidied from multiple point positions, it is ensured that the rubber bearing is located at the downward pressing center position of the ring type mounting frame, and it is ensured that force application is balanced and measurement is accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure test technical field especially relates to a pressure test frock for overhauling EMU car hook rubber bearing. BACKGROUND

[0002] EMU car hook product is the important device of connecting each vehicle in EMU, is used for keeping the stable connection between vehicles and transmitting traction and impact, these car hook products are usually highly precise and complex structure mechanical parts, including non rigid car hook and tight type car hook etc.

[0003] With the long -term operation of EMU, the car hook can be influenced by various forces and impact, and is prone to wear, crack, deformation and other faults, these faults if not timely discovery and processing, will seriously affect the operation safety and stability of EMU, thereby needs regular overhaul, when overhauling, need to press the rubber bearing into the car hook, and the pressure is required in the operation process, need to test, record the pressure value in the pressing process, in the prior art, generally adopts the pressure of the pressure sensor and holds in the rubber bearing and exerts force, the value of pressure is inducted by the pressure sensor, since the caliber of different models of rubber bearing is different, it is difficult to perfectly adapt the holding mouth of pressure, when exerting force, the rubber bearing is easy to deviate from the center of pressure, causes the deviation of exerting force, influences normal test, therefore, the utility model provides a kind of pressure test frock for overhauling EMU car hook rubber bearing to solve the problems in the prior art. SUMMARY

[0004] In view of the above problems, the utility model provides a kind of pressure test frock for overhauling EMU car hook rubber bearing, the pressure test frock for overhauling EMU car hook rubber bearing is positioned and regular from multiple points to rubber bearing, ensure that it is located at the center position of the center position of the ring type mounting frame, guarantee balanced force, accurate measurement.

[0005] To achieve the purpose of the utility model, the utility model realizes the following technical scheme: a kind of pressure test frock for overhauling EMU car hook rubber bearing, including ring type mounting frame and pressure sensor, the pressure sensor is located at the middle position of ring type mounting frame top, the bottom of ring type mounting frame is equipped with positioning disc, and rotating ring is rotationally arranged at the edge of the inside bottom of positioning disc, the middle position of the bottom of ring type mounting frame is equipped with sleeve groove, the middle position of the bottom of positioning disc is equipped with the through hole that is communicated with sleeve groove, the bottom of the inside of positioning disc at the outside position of through hole is rotationally arranged with positioning block, and positioning block is equipped with multiple groups, the inside of rotating ring is rotationally arranged with linkage arm, and linkage arm is equipped with multiple groups matched with positioning block, one end of linkage arm is rotationally connected with positioning block;

[0006] The positioning disc is provided with a notch on one side, and the rotating ring is provided with a push rod extending out of the notch.

[0007] Further improvement lies in that the rotating ring is provided with guide grooves, and the guide grooves are provided with at least four groups around the center of the rotating ring at equal angles; and the edge of the bottom of the inside of the positioning disc is provided with guide protrusions slidingly matched with the guide grooves.

[0008] Further improvement lies in that the positioning blocks and the linkage arms are provided with at least three groups, and the three groups of the positioning blocks and the linkage arms are provided around the center of the positioning disc at equal angles.

[0009] Further improvement lies in that the inner side of the rotating ring is provided with hinged ears, and the hinged ears are provided with three groups corresponding to the linkage arms; and one end of the linkage arm is hinged to the hinged ear.

[0010] Further improvement lies in that the top step is provided with a fixed groove in the inside, the pressure sensor is arranged above the top step, and the pressure sensor is fixed with the fixed groove through bolts.

[0011] Further improvement lies in that the top of the pressure sensor is provided with a contact head below the pressure head of the press, and the sleeve groove of the ring mounting frame is used for accommodating the rubber bearing.

[0012] Further improvement lies in that the signal output end of the pressure sensor is electrically connected to the pressure tester through a wire.

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

[0014] 1. The utility model discloses a ring mounting frame bottom center sleeve groove accommodates rubber bearing upper end pressure, through the pressure sensor on the ring mounting frame from the pressure head of the press and bears the holding power, and detects pressure value, when aiming at different caliber rubber bearing, the rubber bearing is inserted into the sleeve groove through the through -opening, through the push rod, makes the rotating ring rotate, drives the linkage arm to move and rotates, extrudes the positioning block to rotate to the inside of the through -opening, and the rubber bearing is positioned and regularized from multiple points, ensures that it is located at the center position of the ring mounting frame under -pressure, guarantees that the force is balanced, and the measurement is accurate.

[0015] 2. The utility model discloses when the press is under -pressure, the pressure sensor that is clamped in the middle of the pressure head and the ring mounting frame generates analog signal, and is transmitted to the pressure tester, thereby conveniently and accurately reads out the pressure value, and is more convenient to use. DRAWINGS

[0016] Figure 1 It is the front view of the utility model;

[0017] Figure 2 It is the inside schematic view of the positioning disc of the utility model;

[0018] Figure 3 The utility model discloses a working principle schematic diagram.

[0019] Among them: 1, ring mounting bracket, 2, pressure sensor, 3, positioning disc, 4, swivel ring, 5, positioning block, 6, linkage arm, 7, notch, 8, lever, 9, mouth, 10, guide slot, 11, guide protrusion, 12, hinged lug, 13, top step, 14, fixed groove, 15, bolt, 16, contact, 17, press head, 18, rubber bearing, 19, pressure tester. DETAILED DESCRIPTION

[0020] In order to deepen the understanding of the utility model, the utility model will be further described below in conjunction with examples, and the examples are only used to explain the utility model and do not constitute the limitation of the protection scope of the utility model.

[0021] Example one

[0022] According to Figure 1 , 2 , 3 shows, the example proposes a pressure test frock for the maintenance of motor train unit car hook rubber bearing, including ring mounting bracket 1 and pressure sensor 2, the pressure sensor 2 is located at the middle position at ring mounting bracket 1 top, the bottom of ring mounting bracket 1 is equipped with positioning disc 3, and the edge at the inside bottom of positioning disc 3 is rotationally equipped with swivel ring 4, the middle position at the bottom of ring mounting bracket 1 is equipped with sleeve groove, the middle position at the bottom of positioning disc 3 is equipped with mouth 9 that communicates with sleeve groove, the bottom inside of positioning disc 3 at the outside position of mouth 9 is rotationally equipped with positioning block 5, and positioning block 5 is equipped with multiple groups, the inside of swivel ring 4 is rotationally equipped with linkage arm 6, and linkage arm 6 is equipped with multiple groups that are adapted to positioning block 5, one end of linkage arm 6 is rotationally connected with positioning block 5;

[0023] One side of positioning disc 3 is equipped with notch 7, one side of swivel ring 4 is equipped with lever 8 that extends out of notch 7. When using, through the sleeve groove in the center of ring mounting bracket 1 bottom, the upper end of rubber bearing 18 is accommodated to press, through the pressure sensor 2 above ring mounting bracket 1, the pressure holding power from press head 17 is borne, and the pressure value is detected, when aiming at different caliber rubber bearing 18, rubber bearing 18 is inserted into sleeve groove through mouth 9, by pulling lever 8, swivel ring 4 is rotated, linkage arm 6 is driven to move and rotate, and positioning block 5 is rotated to the inside of mouth 9, so that rubber bearing 18 is positioned and regularized from multiple points, ensures that it is located at the center position of ring mounting bracket 1 depression, guarantees that the force is balanced, and the measurement is accurate.

[0024] The rotating ring 4 is provided with a guide groove 10, and four groups of guide grooves 10 are arranged at equal angles around the center of the rotating ring 4. The edge of the inner bottom of the positioning disc 3 is provided with a guide protrusion 11 which is slidably matched with the guide groove 10. In use, the rotating ring 4 is rotated by the matching of the guide groove 10 and the guide protrusion 11, the linkage arm 6 is driven to move and rotate, and the positioning block 5 is pressed to rotate to the inner side of the through opening 9, so that the rubber bearing 18 is positioned and regularized from multiple points, and is ensured to be located at the center position pressed by the ring mounting frame 1, thereby ensuring balanced force and accurate measurement.

[0025] The positioning block 5 and the linkage arm 6 are each provided with four groups, and the four groups of positioning blocks 5 and linkage arms 6 are arranged at equal angles around the center of the positioning disc 3. The inner side of the rotating ring 4 is provided with a hinged lug 12, and the hinged lug 12 is provided with four groups corresponding to the linkage arms 6. One end of the linkage arm 6 is hinged to the hinged lug 12. In use, the rotating ring 4 is rotated by the matching of the guide groove 10 and the guide protrusion 11, the linkage arm 6 is driven to move and rotate, and the positioning block 5 is pressed to rotate to the inner side of the through opening 9, so that the rubber bearing 18 is positioned and regularized from multiple points, and is ensured to be located at the center position pressed by the ring mounting frame 1, thereby ensuring balanced force and accurate measurement.

[0026] The top step 13 is provided at the middle position of the top of the ring mounting frame 1, and the inside of the top step 13 is provided with a fixed groove 14. The pressure sensor 2 is arranged above the top step 13, and the pressure sensor 2 is fixed to the fixed groove 14 by a bolt 15. The installation of the bolt 15 and the fixed groove 14 facilitates the installation or disassembly of the pressure sensor 2 and the top step 13.

[0027] Embodiment two

[0028] According to Figure 1 , 2 , 3, the embodiment provides a pressure testing tool for maintenance of a rubber bearing of a motor train unit coupler, which comprises a ring mounting frame 1 and a pressure sensor 2. The pressure sensor 2 is arranged at the middle position of the top of the ring mounting frame 1. The bottom of the ring mounting frame 1 is provided with a positioning disc 3. The edge of the inner bottom of the positioning disc 3 is rotatably provided with a rotating ring 4. The middle position of the bottom of the ring mounting frame 1 is provided with a sleeve groove. The middle position of the bottom of the positioning disc 3 is provided with a through opening 9 which is in communication with the sleeve groove. The inner bottom of the positioning disc 3 at the position outside the through opening 9 is rotatably provided with a positioning block 5. The positioning block 5 is provided with multiple groups. The inner side of the rotating ring 4 is rotatably provided with a linkage arm 6. The linkage arm 6 is provided with multiple groups which are matched with the positioning block 5. One end of the linkage arm 6 is rotatably connected with the positioning block 5.

[0029] The positioning disc 3 is provided with a notch 7 on one side, and the rotating ring 4 is provided with a lever 8 extending out of the notch 7. In use, the upper end of the rubber bearing 18 is pressed into the sleeve slot in the center of the bottom of the ring mounting frame 1, the pressure holding force from the press head 17 is borne by the pressure sensor 2 above the ring mounting frame 1, and the pressure value is detected. For different calibers of rubber bearings 18, the rubber bearing 18 is inserted into the sleeve slot through the through hole 9, the rotating ring 4 is rotated by pulling the lever 8, the linkage arm 6 is driven to move and rotate, the positioning block 5 is pressed to rotate to the inside of the through hole 9, the rubber bearing 18 is positioned and regularized from multiple points, and it is ensured that it is located at the center position of the pressing of the ring mounting frame 1, so as to ensure balanced force and accurate measurement.

[0030] The top step 13 is provided at the middle position of the top of the ring mounting frame 1, and the inside of the top step 13 is provided with a fixed groove 14. The pressure sensor 2 is arranged above the top step 13 and is fixed with the fixed groove 14 by bolts 15. The installation of the bolts 15 and the fixed groove 14 facilitates the installation or disassembly of the pressure sensor 2 and the top step 13.

[0031] The middle position of the top of the pressure sensor 2 is provided with a contact 16, and the contact 16 is below the press head 17. The sleeve slot of the ring mounting frame 1 is used to accommodate the rubber bearing 18. The signal output end of the pressure sensor 2 is electrically connected to the pressure tester 19 by wires. When the press is pressed down, the contact 16 contacts the press head 17, the lower part of the ring mounting frame 1 contacts the rubber bearing 18, the pressure sensor 2 clamped between the press head 17 and the ring mounting frame 1 generates an analog signal, which is transmitted to the pressure tester 19. The pressure tester 19 has peak display, recording and saving functions, and can read the pressure value, which is more convenient to use.

[0032] The EMU car hook rubber bearing maintenance pressure testing tool accommodates the upper end of the rubber bearing 18 in the sleeve slot in the center of the bottom of the ring mounting frame 1 for pressing, bears the pressure holding force from the press head 17 by the pressure sensor 2 above the ring mounting frame 1, and detects the pressure value. For different calibers of rubber bearings 18, the rubber bearing 18 is inserted into the sleeve slot through the through hole 9, the rotating ring 4 is rotated by pulling the lever 8, the linkage arm 6 is driven to move and rotate, the positioning block 5 is pressed to rotate to the inside of the through hole 9, the rubber bearing 18 is positioned and regularized from multiple points, and it is ensured that it is located at the center position of the pressing of the ring mounting frame 1, so as to ensure balanced force and accurate measurement. When the press is pressed down, the pressure sensor 2 clamped between the press head 17 and the ring mounting frame 1 generates an analog signal, which is transmitted to the pressure tester 19, so as to conveniently and accurately read the pressure value, which is more convenient to use.

[0033] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A pressure test tool for maintenance of a motor train unit car coupler rubber bearing, comprising a ring mounting frame (1) and a pressure sensor (2), characterized in that: The pressure sensor (2) is arranged at the middle position of the top of the ring mounting frame (1), the bottom of the ring mounting frame (1) is provided with a positioning disc (3), a rotating ring (4) is rotatably arranged at the edge of the inner bottom of the positioning disc (3), a sleeve groove is arranged at the middle position of the bottom of the ring mounting frame (1), a through hole (9) is arranged at the middle position of the bottom of the positioning disc (3) and communicates with the sleeve groove, a positioning block (5) is rotatably arranged at the inner bottom of the positioning disc (3) at the outer side position of the through hole (9), and the positioning block (5) is provided with a plurality of groups, the inner side of the rotating ring (4) is rotatably provided with a linkage arm (6), and the linkage arm (6) is provided with a plurality of groups matched with the positioning block (5), one end of the linkage arm (6) is rotatably connected with the positioning block (5). One side of the positioning disc (3) is provided with a notch (7), and one side of the rotating ring (4) is provided with a pull rod (8) extending out of the notch (7).

2. The pressure test tool for inspecting the rubber bearing of a motor train unit coupler according to claim 1, characterized in that: The rotating ring (4) is provided with a guide groove (10), and the guide groove (10) is arranged at least four groups around the center of the rotating ring (4), and the edge of the inner bottom of the positioning disc (3) is provided with a guide protrusion (11) slidingly matched with the guide groove (10).

3. The pressure test tool for inspecting the rubber bearing of a motor train unit coupler according to claim 1, characterized in that: The positioning block (5) and the linkage arm (6) are each provided with at least three groups, and the three groups of the positioning block (5) and the linkage arm (6) are arranged at equal angles around the center of the positioning disc (3).

4. The pressure test tool for inspecting the rubber bearing of a motor train unit coupler according to claim 3, characterized in that: The inner side of the rotating ring (4) is provided with a hinged lug (12), and the hinged lug (12) is provided with three groups corresponding to the linkage arm (6), and one end of the linkage arm (6) is hingedly connected with the hinged lug (12).

5. The pressure test tool for inspecting the rubber bearing of a motor train unit coupler according to claim 1, characterized in that: The middle position of the top of the ring mounting frame (1) is provided with a top step (13), and the inside of the top step (13) is provided with a fixing groove (14), the pressure sensor (2) is arranged above the top step (13), and the pressure sensor (2) is fixed with the fixing groove (14) through bolts (15).

6. The pressure test tool for inspecting the rubber bearing of a motor train unit coupler according to claim 5, characterized in that: The middle position of the top of the pressure sensor (2) is provided with a contact (16), and the contact (16) is located below a press head (17), and the sleeve groove of the ring mounting frame (1) is used for accommodating a rubber bearing (18).

7. The pressure testing tool for inspecting the rubber bearing of a motor train unit coupler according to claim 6, characterized in that: The signal output end of the pressure sensor (2) is electrically connected with a pressure tester (19) through a wire.

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