Pin withdrawing device for overhaul of railway locomotive, passenger car and wagon trolley

Abstract

The utility model discloses a pin withdrawing device for overhauling a railway locomotive, a passenger car and a wagon trolley. During pin withdrawing, two split pins which are distributed up and down need to be disassembled; when the cotter pin on the upper portion is disassembled, the supporting block is supported above the disc type braking structure, then the first hook body is arranged downwards and then hooked on the cotter pin on the upper portion, and finally in the process that the end, away from the supporting block, of the supporting rod is lifted upwards, the lever principle is utilized, and the function of conveniently disassembling the cotter pin on the upper portion is achieved; when the cotter pin on the lower portion is detached, the supporting block is supported above the disc type braking structure, then the second hook body is arranged downwards, the second hook body is hooked on the cotter pin on the lower portion by changing the height of the adjusting piece on the threaded rod, and finally, in the process that the end, away from the supporting block, of the supporting rod is lifted upwards, the cotter pin on the lower portion is detached. By means of the lever principle, the cotter pin on the lower portion can be conveniently detached.

Description

TECHNICAL FIELD

[0001] The utility model relates to a trolley overhauling technical field, especially railway locomotive, passenger train, freight train trolley overhauling is used to draw out the device. BACKGROUND

[0002] Railway locomotive trolley, passenger train trolley, freight train trolley braking system includes disc brake, disc brake is a kind of railway train friction braking, brake disc is installed on wheelset axle or wheel inner side, brake when making brake shoe compress to brake disc, train kinetic energy is converted into heat energy through the friction of brake shoe and brake disc.

[0003] Disc brake overhauls need to be withdrawn to the round pin split pin of brake shoe carrier, involves two upper and lower distribution split pins to be disassembled, when withdrawing to check, the tool used is original hand hammer, hooking to disassemble split pin, the original set of tools is heavy and unsafe, disassembly is time-consuming and laborious, sometimes still easy to cause industrial injury accident. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a railway locomotive, passenger train, freight train trolley overhauling is used to draw out the device, leverage principle is utilized, has the effect of convenient disassembly split pin.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a railway locomotive, passenger train, freight train trolley overhauling is used to draw out the device, including support block, the support rod being set in support block one end, the first hook body being set in support rod close to support block one end, length adjustment assembly being set in support rod close to support block one end, the second hook body being set on length adjustment assembly, the connecting point of first hook body and support rod, the connecting point of length adjustment assembly and support rod are located at the top and bottom of support rod respectively;Length adjustment assembly includes the first lifting ring being set on support rod, the second lifting ring being set on first lifting ring, the threaded rod being set on second lifting ring, the adjusting piece being screwed on threaded rod, the second hook body is set in the lower end of adjusting piece.

[0006] By adopting the technical scheme, the round pin split pin of the brake shoe carrier of the disc brake of the railway locomotive bogie, passenger car bogie and freight car bogie is removed, two upper and lower split pins need to be removed; when the upper split pin is removed, the support block is supported above the disc brake structure, the first hook body is arranged downwards and hooked on the upper split pin, and finally in the process of lifting the end of the support rod away from the support block upwards, the lever principle is utilized to facilitate the removal of the upper split pin; when the lower split pin is removed, the support block is supported above the disc brake structure, the second hook body is arranged downwards, the height of the adjusting member on the threaded rod is changed, the second hook body is hooked on the lower split pin, and finally in the process of lifting the end of the support rod away from the support block upwards, the lever principle is utilized to facilitate the removal of the lower split pin.

[0007] The utility model discloses further provide that: the adjusting member includes connecting seat, threaded seat is connected on the threaded rod, connecting arm is arranged between connecting seat and threaded seat.

[0008] By adopting the technical scheme, the connecting seat can be connected with the second hook body, the threaded seat can adjust the connecting position of the adjusting member and the threaded rod, thereby adjusting the height of the second hook body when removing the split pin, and the connecting arm is arranged between the connecting seat and the threaded seat, avoiding the interference between the lower end of the threaded rod and the connecting seat, providing stroke for the adjustment of the adjusting seat.

[0009] The utility model discloses further provide that: the support rod is slidably provided with a sliding sleeve, a locking bolt for abutting against the circumferential side of the support rod is threadedly connected to the sliding sleeve, and the first hook body and the length adjusting assembly are arranged on the sliding sleeve.

[0010] By adopting the technical scheme, the sliding sleeve is arranged, and the sliding sleeve can be fixed through the locking bolt after adjusting the position, thereby adjusting the position of the first hook body and the second hook body connected with the length adjusting assembly on the support rod, and facilitating the adjustment according to the site condition. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of example 1.

[0012] Figure 2 It is Figure 1 A partial structural schematic diagram based on the structure;

[0013] Figure 3 It is a real photo auxiliary schematic diagram (the real size and the drawing have some differences) of the removal of the lower split pin of example 1.

[0014] Figure 4 It is a structural schematic diagram of example 2.

[0015] Label: 1, support block; 2, support rod; 3, first hook body; 4, length adjusting assembly; 411, first lifting ring; 412, second lifting ring; 413, threaded rod; 414, adjusting piece; 4141, connecting seat; 4142, threaded seat; 4143, connecting arm; 5, second hook body; 6, sliding sleeve; 7, locking bolt. DETAILED DESCRIPTION

[0016] The utility model will be further explained in detail in combination with the drawings.

[0017] A pin withdrawing device for trolley maintenance, comprising a support block 1, a support rod 2 arranged at one end of the support block 1, a first hook body 3 arranged at one end of the support rod 2 close to the support block 1, a length adjusting assembly 4 arranged at one end of the support rod 2 close to the support block 1, and a second hook body 5 arranged on the length adjusting assembly 4, the connecting points of the first hook body 3 and the support rod 2 and the connecting points of the length adjusting assembly 4 and the support rod 2 are located at the top and bottom of the support rod 2 respectively.

[0018] As shown in Figure 1 and Figure 2 , the length adjusting assembly 4 comprises a first lifting ring 411 arranged on the support rod 2, a second lifting ring 412 arranged on the first lifting ring 411, a threaded rod 413 arranged on the second lifting ring 412, and an adjusting piece 414 threadedly connected to the threaded rod 413, and the second hook body 5 is arranged at the lower end of the adjusting piece 414. The adjusting piece 414 comprises a connecting seat 4141, a threaded seat 4142 threadedly connected to the threaded rod 413, and a connecting arm 4143 arranged between the connecting seat 4141 and the threaded seat 4142.

[0019] Effect: in combination with Figures 1 to 3 , the pin withdrawing device is used for withdrawing the split pin of the brake shoe carrier of the disc brake of a railway locomotive trolley, a passenger car trolley, and a freight car trolley, and two split pins distributed above and below need to be disassembled; when disassembling the upper split pin, the support block 1 is first supported above the disc brake structure, then the first hook body 3 is arranged downward and hooked on the upper split pin, and finally in the process of lifting the end of the support rod 2 away from the support block 1 upward, the lever principle is used to facilitate disassembly of the upper split pin; when disassembling the lower split pin, the support block 1 is first supported above the disc brake structure, then the second hook body 5 is arranged downward, the height of the adjusting piece 414 on the threaded rod 413 is changed, the second hook body 5 is hooked on the lower split pin, and finally in the process of lifting the end of the support rod 2 away from the support block 1 upward, the lever principle is used to facilitate disassembly of the lower split pin.

[0020] The connecting seat 4141 is used for connecting the second hook body 5, the threaded seat 4142 is arranged to adjust the connecting position of the adjusting part 414 and the threaded rod 413, thereby adjusting the height of the second hook body 5 when the dismounting opening pin is adjusted, and the connecting arm 4143 is arranged to be spaced apart between the connecting seat 4141 and the threaded seat 4142, avoiding the interference between the lower end of the threaded rod 413 and the connecting seat 4141, and providing stroke for the adjustment of the adjusting seat.

[0021] Embodiment 2: A pin withdrawing device for repairing a railway locomotive, a passenger car, a freight car platform car, as shown in Figure 4 The difference from the embodiment 1 is that the sliding sleeve 6 is arranged on the support rod 2 in sliding mode, the locking bolt 7 for abutting against the circumferential side of the support rod 2 is threadedly connected on the sliding sleeve 6, and the first hook body 3 and the first ring 411 of the length adjusting assembly 4 are arranged on the sliding sleeve 6.

[0022] Embodiment effect: By arranging the sliding sleeve 6, and fixing the sliding sleeve 6 through the locking bolt 7 after adjusting the position, the position of the first hook body 3 and the second hook body 5 connected with the length adjusting assembly 4 on the support rod 2 can be adjusted, thereby facilitating the adjustment according to the site condition.

[0023] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, they are protected by the patent law.

Claims

1. A pin removal device for the maintenance of railway locomotives, passenger cars and freight cars, characterized by: The invention comprises a support block (1), a support rod (2) arranged at one end of the support block (1), a first hook (3) arranged at one end of the support rod (2) close to the support block (1), a length adjustment component (4) arranged at one end of the support rod (2) close to the support block (1), and a second hook (5) arranged on the length adjustment component (4), wherein the connection point between the first hook (3) and the support rod (2) and the connection point between the length adjustment component (4) and the support rod (2) are respectively located at the top and bottom of the support rod (2); The length adjustment assembly (4) comprises a first hanging ring (411) arranged on the support rod (2), a second hanging ring (412) arranged on the first hanging ring (411), a threaded rod (413) arranged on the second hanging ring (412), and an adjusting member (414) threadedly connected to the threaded rod (413); the second hook body (5) is arranged at the lower end of the adjusting member (414).

2. A pin removal device for maintenance of railway locomotives, passenger cars and freight cars according to claim 1, characterized in that: The adjusting member (414) comprises a connecting seat (4141), a threaded seat (4142) threadedly connected to the threaded rod (413), and a connecting arm (4143) arranged between the connecting seat (4141) and the threaded seat (4142).

3. The pin removal device for maintenance of railway locomotives, passenger cars and freight cars according to claim 1, characterized in that: A sliding sleeve (6) is slidably provided on the support rod (2), and a locking bolt (7) is threadedly connected to the sliding sleeve (6) for tightening against the peripheral side of the support rod (2). The first hook body (3) and the length adjustment component (4) are both provided on the sliding sleeve (6).

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