Falling supporting tool suitable for A-type urban railway vehicle bogie

Abstract

The utility model discloses a completion supporting tool suitable for a bogie of an A-type urban railway vehicle, and belongs to the technical field of bogie assembly. According to the utility model, the chassis is arranged and can move; the supporting device is fixedly connected to the upper part of the chassis in a lifting manner; the top supporting seat is fixedly connected to the top end of the supporting device and used for bearing the axle box, the top end of the supporting seat is provided with a receiving structure for receiving the axle box, and the receiving structure is provided with an opening part for allowing the axle box to enter; the spring is connected between the chassis and the top supporting seat so that the top supporting seat can be kept in a posture when the top supporting seat ascends and descends along with the supporting device, and the device has the advantages of being convenient to use and stable in supporting, effectively guaranteeing that the primary spring is in a vertical state, and improving the completion working efficiency and the construction safety of the bogie.

Description

Technical Field

[0001] The utility model relates to the technical field of bogie assembly, in particular to a completion support tooling suitable for an A-type urban railway vehicle bogie. Background Art

[0002] At present, the axle box of the A-type urban rail vehicle bogie is an asymmetric structure, which will tilt to one side due to gravity in the natural state. When the A-type urban rail vehicle bogie is completed, the wheelset and axle box must be assembled first, and then a tie spring must be installed on the axle box, and finally the frame is dropped onto the tie spring to complete the bogie.

[0003] During the construction process, the axle box will naturally tilt toward the center of the bogie due to its asymmetric structure. After the four tie springs of the same bogie are installed, they will be shaped like an eight, and the top size of the tie spring will be smaller than the bottom size, causing the frame to be unable to fall smoothly onto the tie spring. At the same time, when the frame falls, there is a risk of collapse and injury due to the tilted tie spring.

[0004] Therefore, it is urgent to develop a completion support tooling suitable for A-type urban rail vehicle bogies. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects of the prior art and provide a kind of completion support tooling suitable for A-type urban railway vehicle bogies, which can support the axle box when the frame is completed, ensure that each tie spring is in a vertical state, and improve the completion efficiency and construction safety of the bogie.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model discloses a completion support tooling applicable to an A-type urban railway vehicle bogie, comprising:

[0008] a chassis, which is capable of displacement;

[0009] A supporting device, which is fixedly connected to the upper part of the chassis in a manner that it can be raised and lowered;

[0010] A top support seat, which is fixedly connected to the top of the support device and is used to support the axle box, and the supporting area at the top of the top support seat has an opening portion for receiving the axle box; and

[0011] A spring is connected between the bottom plate and the top support seat so as to keep the top support seat in a posture when following the lifting of the support device.

[0012] Furthermore, the supporting area of ​​the top support seat is provided with a groove which is recessed in the surface of the supporting device, and after the opening at the top of the groove receives the axle box, the inner wall of the groove contacts the axle box through a pad.

[0013] Furthermore, two sides of the groove are open structures.

[0014] Furthermore, the pad includes a bottom nylon pad and a side nylon pad, and the upper edge of the side nylon pad is chamfered.

[0015] Furthermore, the supporting device is a jack, and the jack is provided with a lifting pressure plate and a releasing pressure plate, and a retaining spring supporting the lifting pressure plate.

[0016] Furthermore, the spring is a tension spring, one end of which is hooked and connected to the lower surface of the top support seat, and the other end of which is hooked and connected to the upper surface of the chassis.

[0017] In the above technical solution, the utility model provides a completion support tooling suitable for A-type urban railway vehicle bogies, with the following beneficial effects:

[0018] The completion support tooling designed by the utility model has a top of the chassis supported by a support device to support the lifting of the top support seat, adapted to the installation height of the axle box, the top support seat receives and limits the axle box through the opening of the groove, and is connected between the chassis and the top support seat by a spring, so that the top support seat maintains its posture when following the lifting of the support device, and the support is stable and reliable;

[0019] The completion support tooling can provide positioning and firm support for the axle box when the bogie is completed, ensuring that the primary spring is in a vertical state, thereby improving the work efficiency and construction safety of the bogie completion. It also has the beneficial effects of rapid movement, self-guided positioning, rapid and labor-saving lifting and lowering, and protection of the paint on the axle box surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is an axonometric drawing of a completion support tooling applicable to a bogie of an A-type urban railway vehicle disclosed in the utility model;

[0022] Figure 2 The utility model discloses an exploded view of a completion support tooling applicable to an A-type urban railway vehicle bogie.

[0023] Description of reference numerals:

[0024] 1. Base plate; 2. Universal wheel; 3. Support device; 4. Top support seat; 5. Spring; 6. Jack; 7. Lifting plate; 8. Retaining spring; 9. Release plate; 10. Support seat; 11. Bottom nylon pad; 12. Side nylon pad; 13. Side nylon pad. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] See also Figure 1 , 2 As shown;

[0027] The utility model discloses a support fixture for a bogie of a type A urban railway vehicle, comprising:

[0028] a chassis, which is capable of displacement;

[0029] A supporting device 3, which is fixedly connected to the upper part of the chassis in a manner capable of being raised and lowered;

[0030] A top support seat 4, which is fixedly connected to the top of the support device 3 and is used to support the axle box. The supporting area at the top of the support seat 4 has an opening for receiving the axle box; and

[0031] The spring 5 is connected between the bottom plate and the top support seat 4 so as to keep the top support seat 4 in a posture when following the lifting of the support device 3 .

[0032] Preferably, the supporting area of ​​the top support seat 4 is provided with a groove which is recessed in the surface of the support device 3. After the opening at the top of the groove receives the axle box, the inner wall of the groove contacts the axle box through the pad. The two sides of the groove are open structures. The pad is a split structure, which includes a bottom nylon pad 11, a side nylon pad 12, and a side nylon pad 13. The upper edges of the side nylon pad 12 and the side nylon pad 13 are chamfered.

[0033] See also Figure 2 As shown:

[0034] In a specific embodiment, the chassis includes a bottom plate 1 and universal wheels 2;

[0035] The bottom plate 1 is machined from a whole steel plate and has a certain thickness to ensure the strength and rigidity of the invention, and to avoid deformation due to insufficient rigidity during use, which affects the accuracy. The bottom plate 1 is processed with mounting holes for the universal wheel 2 and the support device 3, and the lower end hook of the spring 5 is welded on the upper surface;

[0036] The universal wheel 2 adopts double-sided ball bearings to ensure its stability and supporting force. The whole is installed on the bottom plate 1 using hexagonal bolts and washers. The universal wheel 2 can realize the rapid movement of the tooling and the support of the axle box during work.

[0037] Preferably, the supporting device 3 is a jack 6 in the prior art, and the jack 6 is provided with a lifting plate 7 and a releasing plate 9, and a retaining spring 8 supporting the lifting plate 7;

[0038] Considering the weight of the bogie and the load at the time of completion, the maximum load-bearing capacity of the jack 6 is 5t, and it is connected to the base plate 1 by hexagonal bolts and nuts. The lifting plate 7 and the release plate 9 are installed on the jack 6 by pins, and the lifting plate 7 can be kept in the raised state by setting a retaining spring 8.

[0039] The top support seat 4 includes a support base 10, a bottom nylon pad 11, a left side nylon pad 12, and a side nylon pad 13;

[0040] The support base 10 is produced by machining steel plates to ensure the size. The support base 10 is provided with a groove, and is bolted to the top of the jack 6 through a countersunk hole provided in the middle of the groove. A mounting hook of the spring 5 is welded on the lower plane of the support base 10.

[0041] The bottom nylon pad 11, the side nylon pad 12, and the side nylon pad 13 are made of nylon material and are installed on the support base 10 with screws. The use of nylon material can avoid contact between the support base 10 and the axle box metal and damage to the paint on the axle box surface. The side nylon pad 12 and the side nylon pad 13 are chamfered and can be self-guided when in contact with the bogie axle box to ensure that the axle box can smoothly fall into the opening of the top support seat 4.

[0042] The spring 5 is a tension spring, the lower end of the spring 5 is hung on the hook of the bottom plate 1, and the upper end is hung on the hook of the support base 10. When the lifting plate 7 is pressed down, the jack 6 will drive the top support seat 4 to rise together, and the spring 5 will generate a pulling force. When the jack 6 descends, the pulling force of the spring 5 is used to realize the automatic descent of the present invention.

[0043] In the above technical solution, the utility model provides a completion support tooling suitable for A-type urban railway vehicle bogies, and the method of use is:

[0044] When the bogie is completed and constructed, after the wheelset is pushed to the completion station, the universal wheel 2 is used to quickly push the present invention to the bottom of the axle box. After the initial positioning is completed, the lifting plate 7 is stepped down to make the jack 6 drive the top support seat 4 to rise. After the lifting plate 7 is stepped on, it can automatically rise to the initial state by using the retaining spring 8, without the need to move it up and down, saving manpower. When the top support seat 4 contacts the axle box, the side nylon pad 12, the chamfer on the side nylon pad 13 and the universal wheel 2 can be used to achieve self-guiding, ensuring that the axle box completely falls into the opening of the support base 10. Continue to step on the lifting plate 7 to make the top support seat 4 continue to rise, and support the axle box to a horizontal position. At this time, the spring 5 is in a stretched state.

[0045] After the bogie frame is completed, the release plate 9 on the support device 3 is stepped down, the jack 6 is in a retractable state, and the tension of the spring 5 is used to realize the descent of the jack 6 and drive the top support seat 4 to descend. When the support seat assembly 4 is separated from the axle box, the universal wheel 2 can be used to push the present invention away.

[0046] Beneficial effects:

[0047] 1) When the bogie is completed, it can provide positioning and firm support for the axle box, ensure that the first spring is in a vertical state, and improve the work efficiency and construction safety of the bogie.

[0048] 2) The base is made of steel plate, which can ensure the overall strength and rigidity of the tooling and avoid vibration and deformation of the tooling during the construction process. The mounting holes of various components are machined on the base to ensure the horizontal state and use effect of the tooling.

[0049] 3) Universal wheels are configured to achieve fast and labor-saving movement, without the need for manpower for carrying. At the same time, the position of the tooling can be adjusted in real time during use.

[0050] 4) The chamfered nylon pad configured on the top support seat realizes the self-guiding positioning function while protecting the paint on the surface of the axle box.

[0051] 5) By configuring a jack, retaining spring and spring, the top support can be raised and lowered quickly and labor-savingly. When rising, just step on the rising pressure plate. After it is in place, it can be self-retaining. When descending, just step on the release pressure plate, which can save manpower and improve construction efficiency.

[0052] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A completion support tooling suitable for A-type urban railway vehicle bogies, characterized in that: include: a chassis, which is capable of displacement; A supporting device (3) fixedly connected to the upper part of the chassis in a manner capable of being raised and lowered; A top support seat (4) is fixedly connected to the top of the support device (3) and is used to support the axle box. The supporting area at the top of the top support seat (4) has an opening for receiving the axle box. as well as A spring (5) is connected between the chassis and the top support seat (4) so ​​as to enable the top support seat (4) to maintain its posture when following the lifting of the support device (3).

2. The completion support tooling for A-type urban railway vehicle bogie according to claim 1, characterized in that ； The supporting area of ​​the top support seat (4) is provided with a groove which is recessed in the surface of the support device (3); after the opening at the top of the groove receives the axle box, the inner wall of the groove contacts the axle box through a pad.

3. The completion support tooling suitable for A-type urban railway vehicle bogie according to claim 2, characterized in that ； Both sides of the groove are open structures.

4. A completion support tooling suitable for an A-type urban railway vehicle bogie according to claim 2, It is characterized by: The pad comprises a bottom nylon pad (11) and side nylon pads (12, 13), and the upper edges of the side nylon pads (12, 13) are chamfered.

5. The completion support tooling applicable to the A-type urban railway vehicle bogie according to claim 1, It is characterized by: The supporting device (3) is a jack (6), and the jack (6) is provided with a lifting pressure plate (7), a releasing pressure plate (9), and a retaining spring (8) supporting the lifting pressure plate (7).

6. The completion support tooling applicable to the bogie of type A urban railway vehicle according to claim 1, It is characterized by: The spring (5) is a tension spring, one end of which is hooked and connected to the lower surface of the top support seat (4), and the other end of which is hooked and connected to the upper surface of the chassis.

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