Locomotive car coupler knuckle pin bush replacing tool

Abstract

The utility model discloses a locomotive car coupler knuckle pin bush replacing tool which comprises a car coupler body, a first pin bush and a hollow oil cylinder, the first pin bush is installed on the car coupler body, the hollow oil cylinder is arranged above the car coupler body, a center positioning rod is connected to the hollow oil cylinder in an embedded mode, a pressing sleeve is connected to the center positioning rod in an embedded mode, and the pressing sleeve is connected to the first pin bush in an embedded mode. The pressing sleeve is in contact with the hollow oil cylinder, and a second pin sleeve is arranged on the lower side of the pressing sleeve. According to the tool for replacing the coupler knuckle pin bush of the locomotive coupler, tool equipment is pushed to move through stretching of the oil cylinder, replacement of the coupler knuckle pin bush is achieved, it can be guaranteed that the center position of the whole device corresponds to the center of a pin hole in a coupler body through the middle effect of the center positioning rod, and basic guarantee is provided for replacement of the pin bush; and the equipment has the advantages of stable clamping capacity, high replacement efficiency, simplicity and convenience in operation and the like, the labor intensity and the safety risk of operators are reduced, and the accuracy and the reliability in the replacement process are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the locomotive coupler maintenance technical field, concretely is a kind of locomotive coupler knuckle tongue pin sleeve replacement tool. BACKGROUND

[0002] As the key component for connecting each locomotive and vehicle, the integrity of knuckle tongue pin and pin sleeve of locomotive coupler is directly related to the operation safety of locomotive and train and the safety of life and property of passengers. However, during the long-term operation of locomotive, the knuckle tongue pin and pin sleeve will inevitably be worn or damaged, and need to be replaced in time to ensure safety. The traditional replacement method mainly relies on manual operation, and the new knuckle tongue pin sleeve is knocked into the ear pin hole by hammering. It takes ten or more minutes for three people to replace a knuckle tongue pin sleeve with force. During the operation process, there are safety risks such as knocking deviation, unstable iron hammer, unstable operation personnel falling into the ditch, and the violent action causes great damage to the parts. Therefore, in view of the above problems, the present application designs a kind of locomotive coupler knuckle tongue pin sleeve replacement tool to better meet the actual use requirement. SUMMARY

[0003] The utility model aims at providing a kind of locomotive coupler knuckle tongue pin sleeve replacement tool to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of locomotive coupler knuckle tongue pin sleeve replacement tool, including coupler body, first pin sleeve and hollow oil cylinder, first pin sleeve is installed on the coupler body, hollow oil cylinder is provided above the coupler body, center positioning rod is nestedly connected on the hollow oil cylinder, pressure sleeve is nestedly connected on the center positioning rod, the pressure sleeve is in contact with hollow oil cylinder, second pin sleeve is provided in the lower side of pressure sleeve, the second pin sleeve is in contact with first pin sleeve, bottom support is nestedly connected in the lower end of center positioning rod, the bottom support is in contact with the lower end surface of coupler body, the center positioning rod and coupler body are locked by lock nut and bottom support.

[0005] Preferably, the front end surface of the hollow oil cylinder is also provided with an oil port, and the right end of the hollow oil cylinder is fixed with a handle. The oil port can facilitate the in-out of hydraulic oil in the hollow oil cylinder, providing a basic guarantee for the normal operation of the hollow oil cylinder. The handle can facilitate the holding of the hollow oil cylinder.

[0006] Preferably, the center positioning rod is coaxial with the hollow oil cylinder, and the upper end of the center positioning rod is also fixed with a positioning block, and the positioning block is in contact with the hollow oil cylinder to realize the positioning function. The limiting action of the positioning block in contact with the hollow oil cylinder can provide a basic guarantee for the normal operation of the device.

[0007] Preferably, the lower end face of the pressing sleeve is further fixed with a convex ring, and the convex ring is in nested connection with the second pin sleeve, and the central axis of the pressing sleeve, the central positioning rod and the second pin sleeve are on the same vertical line, and through the nested connection between the convex ring and the second pin sleeve, the second pin sleeve can be conveniently positioned and installed.

[0008] Preferably, the size of the second pin sleeve is opposite to the size of the first pin sleeve, and the central axis of the second pin sleeve is on the same vertical line with the central axis of the first pin sleeve, and through limiting the size and position of the second pin sleeve, a basic guarantee for the installation of the second pin sleeve can be provided.

[0009] Preferably, the bottom support is in nested connection with the central positioning rod, the inner diameter of the bottom support is greater than the outer diameter of the first pin sleeve, and the height of the bottom support is greater than the height of the first pin sleeve, and through limiting the size of the bottom support, the first pin sleeve can be conveniently collected.

[0010] Compared with the prior art, the locomotive coupler knuckle pin sleeve replacement tool has the beneficial effects that: the locomotive coupler knuckle pin sleeve replacement tool realizes the replacement of the knuckle pin sleeve through the extension and retraction of the oil cylinder to drive the movement of the tool equipment, and through the centering effect of the central positioning rod, the center position of the whole device can be guaranteed to correspond to the pin hole center of the coupler body, thereby providing a basic guarantee for the replacement of the pin sleeve, and the equipment has the advantages of stable clamping capacity, high replacement efficiency, simple operation and the like, and reduces the labor intensity and safety risk of the operator, and ensures the accuracy and reliability in the replacement process. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is an overall composition explosion perspective structure schematic view of the device of the utility model;

[0012] Fig. 2 It is an overall composition front perspective structure schematic view of the device of the utility model;

[0013] Fig. 3 It is an overall composition front perspective structure schematic view of the device of the utility model;

[0014] In the drawing: 1, coupler body; 2, first pin sleeve; 3, hollow oil cylinder; 301, oil port; 302, handle; 4, central positioning rod; 401, positioning block; 5, pressing sleeve; 501, convex ring; 6, second pin sleeve; 7, bottom support; 8, locking nut. DETAILED DESCRIPTION

[0015] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0016] Please refer to Figs. 1-3 The utility model provides a technical scheme: a locomotive coupler knuckle pin sleeve replacement frock, including coupler body 1, first pin sleeve 2 and hollow oil cylinder 3, first pin sleeve 2 is installed on coupler body 1, hollow oil cylinder 3 is provided on the top of coupler body 1, hollow oil cylinder 3 is nested with the centre positioning rod 4, the centre positioning rod 4 is nested with the press sleeve 5, the press sleeve 5 is in contact with hollow oil cylinder 3, the second pin sleeve 6 is provided in the lower side of press sleeve 5, the second pin sleeve 6 is in contact with first pin sleeve 2, the bottom support 7 is nested with the lower end of centre positioning rod 4, the bottom support 7 is in contact with the lower end surface of coupler body 1, and the centre positioning rod 4 and coupler body 1 are locked with bottom support 7 through locking nut 8.

[0017] The front end surface of hollow oil cylinder 3 is also provided with oil port 301, and the right end of hollow oil cylinder 3 is fixed with handle 302; the central axis of centre positioning rod 4 coincides with the central axis of hollow oil cylinder 3, the upper end of centre positioning rod 4 is also fixed with positioning block 401, and the positioning block 401 is in contact with hollow oil cylinder 3 to realize positioning effect; the lower end surface of press sleeve 5 is also fixed with convex ring 501, the convex ring 501 is nested with the second pin sleeve 6, and the central axis of press sleeve 5, the central axis of centre positioning rod 4 and the central axis of second pin sleeve 6 are on the same vertical line; the size of second pin sleeve 6 is opposite to the size of first pin sleeve 2, and the central axis of second pin sleeve 6 and the central axis of first pin sleeve 2 are on the same vertical line; the bottom support 7 is nested with centre positioning rod 4, the inner diameter of bottom support 7 is greater than the outer diameter of first pin sleeve 2, and the height of bottom support 7 is greater than the height of first pin sleeve 2;

[0018] When using the locomotive coupler knuckle pin sleeve replacement frock, as shown in the figure, Figs. 1-3 Firstly, the second pin sleeve 6 is placed above the first pin sleeve 2, then the centre positioning rod 4 penetrates through hollow oil cylinder 3 and press sleeve 5, the output end of press sleeve 5 is in contact with hollow oil cylinder 3, then the convex ring 501 is nested with the second pin sleeve 6, at this time, the centre positioning rod 4 penetrates through the second pin sleeve 6 and the first pin sleeve 2 synchronously, to ensure that the central axes of the second pin sleeve 6 and the first pin sleeve 2 are on the same straight line, then the bottom support 7 is nested with the centre positioning rod 4, and until the bottom support 7 is in contact with the lower end surface of coupler body 1, finally, the screw thread connection between locking nut 8 and centre positioning rod 4 can realize the locking effect of the bottom support 7 and coupler body 1, and the composition is completed, as shown in the figure, Fig. 2As shown, at this time, the hydraulic oil pipe is in contact with the oil port 301, and the hollow oil cylinder 3 can be extended by controlling the oil in and out. Since the positions of the hollow oil cylinder 3, the center positioning rod 4 and the bottom support 7 are relatively fixed at this time, when the hollow oil cylinder 3 is extended, the output end of the hollow oil cylinder 3 will generate pressure on the pressing sleeve 5, thereby generating pressure on the second pin sleeve 6, so that the second pin sleeve 6 extrudes the first pin sleeve 2 to move downward, thereby enabling the first pin sleeve 2 to be separated from the coupler body 1, and the second pin sleeve 6 is nested with the coupler body 1. When the pressing sleeve 5 is in contact with the coupler body 1, at this time, the second pin sleeve 6 is completely installed into the pin hole of the coupler body 1, and the first pin sleeve 2 is completely separated from the pin hole of the coupler body 1 and falls into the bottom support 7 to be collected for subsequent processing, so as to realize the replacement of the pin sleeve. This is the working principle of the locomotive coupler knuckle pin sleeve replacement tool.

[0019] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A locomotive knuckle coupler knuckle pin bushing replacement tooling comprising a coupler body (1), a first pin bushing (2) and a hollow oil cylinder (3), characterized in that: The first pin sleeve (2) is installed on the car hook body (1), the hollow oil cylinder (3) is arranged above the car hook body (1), the center positioning rod (4) is nested and connected on the hollow oil cylinder (3), the pressing sleeve (5) is nested and connected on the center positioning rod (4), the pressing sleeve (5) is in contact with the hollow oil cylinder (3), the second pin sleeve (6) is arranged on the lower side of the pressing sleeve (5), the second pin sleeve (6) is in contact with the first pin sleeve (2), the bottom support (7) is nested and connected on the lower end of the center positioning rod (4), the bottom support (7) is in contact with the lower end surface of the car hook body (1), and the center positioning rod (4) and the car hook body (1) are locked with the bottom support (7) through the locking nut (8).

2. The knuckle pin sleeve replacement tool for a railway car coupler knuckle as defined in claim 1, wherein: The oil port (301) is further installed on the front end surface of the hollow oil cylinder (3), and the handle (302) is fixed on the right end of the hollow oil cylinder (3).

3. The knuckle pin sleeve replacement tool for a railway car coupler knuckle as defined in claim 1, wherein: The center positioning rod (4) is in coincidence with the center axis of the hollow oil cylinder (3), the positioning block (401) is further fixed on the upper end of the center positioning rod (4), and the positioning block (401) is in contact with the hollow oil cylinder (3) to realize the positioning effect.

4. The knuckle pin sleeve replacement tool for a railway car coupler knuckle as defined in claim 1, wherein: The convex ring (501) is further fixed on the lower end surface of the pressing sleeve (5), the convex ring (501) is nested and connected with the second pin sleeve (6), the center axis of the pressing sleeve (5), the center axis of the center positioning rod (4) and the center axis of the second pin sleeve (6) are on the same vertical line.

5. The knuckle pin sleeve replacement tool for a railway car coupler knuckle as defined in claim 1, wherein: The size of the second pin sleeve (6) is opposite to the size of the first pin sleeve (2), and the center axis of the second pin sleeve (6) is on the same vertical line with the center axis of the first pin sleeve (2).

6. The knuckle pin sleeve replacement tool for a railway car coupler knuckle as defined in claim 1, wherein: The bottom support (7) is nested and connected with the center positioning rod (4), the inner diameter of the bottom support (7) is greater than the outer diameter of the first pin sleeve (2), and the height of the bottom support (7) is greater than the height of the first pin sleeve (2).

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