A 70-ton railway freight train traction beam inner support plate assembly welding device

Abstract

The utility model relates to railway freight train traction beam technical field discloses a kind of 70-ton level railway freight train traction beam inner support plate assembly welding device, and the inside wall of traction beam is symmetrically installed with front dash plate seat, and inside top wall is to be welded with inner support plate, including positioning support plate and jacking part, the support plate positioning stopper corresponding to the front portion of front dash plate seat is equipped in the bottom of positioning support plate, the positioning of positioning support plate relative to front dash plate seat is realized, the inner support plate positioning block corresponding to the circumference of inner support plate is equipped in the top of positioning support plate, the positioning of inner support plate relative to positioning support plate is realized, positioning support plate can be settled between front dash plate seat and the inner top wall of traction beam, provide temporary support for the inner support plate not jacked up, jacking part can be relative to positioning support plate lifting jacking inner support plate, and realize self-locking after jacking in place, with the characteristics of relieving crowded work environment, single independent operation, inner support plate accurate positioning welding.

Description

Technical Field

[0001] This utility model relates to the field of railway freight train traction beam technology, specifically to a welding device for the inner support plate assembly of a 70-ton railway freight train traction beam. Background Technology

[0002] Because the freight car coupler buffer and the coupler head are connected by a pin, and the connection point is located directly below the trough structure of the traction beam, the pin moves up and down during freight car operation. When it moves upward, it occasionally hits the traction beam directly. Therefore, an inner support plate is welded to isolate it. However, when welding the inner support plate, if the weight of the inner support plate is less than 30 catties, it cannot effectively isolate the impact force of the pin. Therefore, the existing inner support plate weighs 30-40 catties, requiring one person to hold the inner support plate while another person welds it. Due to the narrow space under the beam, it is very inconvenient for two people to operate. Also, due to the crowding, the welding can only be roughly positioned, resulting in low operating efficiency and unstable welding quality. Moreover, because the positioning of the inner support plate is inaccurate, when the pin moves upward, it does not hit the center point of the inner support plate, which can easily cause the inner support plate structure to become unbalanced. Over time, the inner support plate will not be able to resist the impact force of the pin, and the impact force of the pin will still directly affect the traction beam, affecting the train's operating safety and service life. Utility Model Content

[0003] This utility model aims to provide a welding device for the inner support plate of the traction beam of a 70-ton railway freight train. It can be operated by a single person and is precisely positioned, solving the problem that the current method requires one person to lift the inner support plate for rough positioning while another person welds it, resulting in crowded operating space and inaccurate positioning of the inner support plate.

[0004] Therefore, the technical solution adopted by this utility model is as follows: a welding device for the inner support plate of the traction beam of a 70-ton railway freight train, wherein a front punch plate seat is symmetrically installed on the left and right sides of the inner side wall of the traction beam, and an inner support plate is to be welded on the inner top wall, including a positioning support plate and a lifting component. The bottom front end of the positioning support plate is provided with a support plate positioning block corresponding to the front of the front punch plate seat, so as to realize the positioning of the positioning support plate relative to the front punch plate seat. The top of the positioning support plate is provided with an inner support plate positioning block corresponding to the circumference of the inner support plate, so as to realize the positioning of the inner support plate relative to the positioning support plate. The positioning support plate can be placed between the front punch plate seat and the inner top wall of the traction beam to provide temporary support for the unlifted inner support plate. The lifting component can lift the inner support plate relative to the positioning support plate and achieve self-locking after being lifted into place.

[0005] As a preferred embodiment of the above solution, the support plate positioning blocks are arranged in two left and right mirror symmetrical configurations, and the overall structure is an "L" shape that matches the inner corner contour of the front end of the front punch plate seat. The two support plate positioning blocks correspond to the two front punch plate seats respectively, ensuring accurate positioning.

[0006] A further preferred embodiment is that the inner support plate positioning blocks respectively abut against the left, right and rear sides of the inner support plate to ensure circumferential positioning of the inner support plate.

[0007] A further preferred embodiment is that five inner support plate positioning blocks are arranged symmetrically from left to right, and two of them are spaced apart from each other on the left and right sides of the inner support plate. Considering that the left and right sides of the inner support plate are longer, two inner support plate positioning blocks are set, which is a reasonable arrangement.

[0008] A further preferred embodiment is that the front side of the positioning support plate is provided with a bent side plate that bends forward and downward, thereby providing a pushing ramp when the inner support plate is pushed into the positioning support plate, making it convenient for the inner support plate to slide into the positioning support plate along the pushing ramp. This is an ingenious design.

[0009] More preferably, the lifting member has a thread at the middle end and a lifting part at the top end. The bottom of the positioning support plate has an internal screw sleeve that matches the thread at the middle end of the lifting member. The lifting part is fitted with independent round caps. When the lifting member is screwed upward, the round caps lift the inner support plate until it is tightly fitted with the inner top wall of the traction beam.

[0010] The lifting component achieves lifting and lowering through threaded engagement with the inner screw sleeve. The inner screw sleeve of the positioning support plate is threadedly engaged with the lifting component, enabling self-locking during lifting and lowering. The combination of the lifting part and the round cap ensures that the rotation of the lifting component will not cause the round cap in contact with the inner support plate to rotate synchronously. The structure is interlocked, with a novel concept and ingenious design.

[0011] A further preferred embodiment is that the bottom end of the lifting member is a gripping part, the gripping part is provided with a pin through hole, and is equipped with a pin-assisted screwing lifting member. When manual screwing is difficult, the pin can be used to assist in screwing, which is a reasonable design.

[0012] More preferably, the lifting part is partially provided with external threads, and the bottom of the round cap is partially provided with internal threads that match the external threads of the lifting part. The round cap can completely cover the lifting part and remain independent of it after briefly engaging with the external threads of the lifting part downwards. The round cap can also completely disengage from the lifting part after briefly engaging with the external threads of the lifting part upwards.

[0013] A further preferred embodiment is that the inner support plate adopts a two-layer structure with a larger upper layer and a smaller lower layer. The upper layer is made of Q233A material, and the lower layer is made of high-strength wear-resistant material. The upper layer retains the original material, while the lower layer uses high-strength wear-resistant material to resist the impact from the round pin, thus ensuring the manufacturing cost of the inner support plate while increasing the structural strength.

[0014] More preferably, the length of the inner screw sleeve is greater than the length of the round cap, so as to effectively ensure that the round cap does not protrude from the positioning support plate when it is in the initial unused state, and at the same time, the threaded section of the lifting member engages with the thread of the inner screw sleeve.

[0015] The beneficial effects of this utility model are:

[0016] (1) Compared with the current method that requires one person to lift the inner support plate for rough positioning and another person to weld it, this solution uses the traction beam inner support plate assembly welding device to enable a single person to operate independently throughout the entire process, effectively alleviating the crowded working environment and reducing labor costs.

[0017] (2) Positioning block at the bottom of the positioning support plate to position the positioning support plate relative to the front punch plate seat. Positioning block at the top of the positioning support plate to position the inner support plate relative to the positioning support plate. This ensures accurate positioning of the inner support plate before welding, ensuring that the round pin moves directly to the center of the inner support plate, ensuring the structural stability of the inner support plate, and isolating the impact force of the round pin movement for a long time.

[0018] (3) When the positioning support plate is placed between the front punch plate seat and the inner top wall of the traction beam, it can provide temporary support for the unlifted inner support plate, saving time and effort. It does not require manual lifting of the inner support plate. The lifting component can lift the inner support plate relative to the positioning support plate. In other words, the positioning support plate can provide the lifting component with the lifting reaction force and can achieve self-locking after being lifted into place. The design is novel.

[0019] In summary, this utility model features the advantages of alleviating crowded working environments, allowing for independent operation by a single person, and enabling precise positioning and welding of the inner support plate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model in use.

[0021] Figure 2 This is a schematic diagram of the structure of this utility model.

[0022] Figure 3 for Figure 2 A structural diagram from another perspective.

[0023] Figure 4 This is a schematic diagram of the lifting component without the round cap installed.

[0024] Explanation of reference numerals in the attached drawings: 1. Positioning support plate; 2. Lifting component; 3. Inner support plate; 4. Front punch plate seat; 11. Inner screw sleeve; 12. Support plate positioning block; 13. Inner support plate positioning block; 14. Bending side plate; 21. Lifting part; 22. Round cap; 23. Holding part. Detailed Implementation

[0025] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0026] Combination Figure 1 — Figure 4As shown, a welding device for the inner support plate of a 70-ton railway freight train traction beam is disclosed. The inner side wall of the traction beam is symmetrically equipped with a front punch plate seat 4, and the inner top wall is to be welded with an inner support plate 3. The device consists of a positioning support plate 1 and a lifting member 2 passing through the positioning support plate 1. The bottom front end of the positioning support plate 1 is provided with a support plate positioning block 12 corresponding to the front of the front punch plate seat 4, so as to realize the positioning of the positioning support plate 1 relative to the front punch plate seat 4. The top of the positioning support plate 1 is provided with an inner support plate positioning block 13 corresponding to the circumference of the inner support plate 3, so as to realize the positioning of the inner support plate 3 relative to the positioning support plate 1. The support plate positioning block 12 is arranged in two left and right mirror symmetrical positions, and the whole is in an "L" shape that matches the inner corner contour of the front end of the front punch plate seat 4.

[0027] The inner support plate positioning blocks 13 respectively abut against the left, right and rear sides of the inner support plate 3, thereby limiting the inner support plate 3 in the circumference, while retaining the front space to facilitate the subsequent entry of the inner support plate from the front side of the positioning support plate 1.

[0028] Five inner support plate positioning blocks 13 are arranged symmetrically on the left and right sides, and two of them are spaced apart on the left and right sides of the inner support plate 3. Since the longitudinal length of the inner support plate 3 is greater than the transverse width, two inner support plate positioning blocks 13 are set on the left and right sides respectively.

[0029] The front side of the positioning support plate 1 is provided with a bent side plate 14 that bends forward and downward, thereby providing a boosting slope for the inner support plate 3 to be pushed into the upper part of the positioning support plate 1. The inner support plate 3 can enter from the front side of the positioning support plate 1 along the boosting slope.

[0030] The positioning support plate 1 can be placed between the front punch plate seat 4 and the inner top wall of the traction beam to provide temporary support for the unlifted inner support plate 3.

[0031] The lifting component 2 has a thread at the middle end and a lifting part 21 at the top. The bottom of the positioning support plate 1 is provided with an inner screw sleeve 11 that matches the thread at the middle end of the lifting component 2. The lifting part 21 is fitted with independent round caps 22. When the lifting component 2 is screwed upward, the round caps 22 lift the inner support plate 3 until it is tightly fitted with the inner top wall of the traction beam.

[0032] The length of the inner screw sleeve 11 is greater than the length of the round cap 22.

[0033] The lifting component 2 can lift the inner support plate 3 relative to the positioning support plate 1, and achieve self-locking after being lifted into place.

[0034] The bottom end of the lifting component 2 is a gripping part 23, which is provided with a pin through hole and equipped with a pin to assist in screwing the lifting component 2.

[0035] The bottom edge of the round cap 22 can be narrowed inward to prevent it from detaching from the lifting part 21.

[0036] Alternatively, the round cap 22 can be designed as a detachable set. The lifting part 21 is partially provided with external threads, and the bottom of the round cap 22 is partially provided with internal threads that match the external threads of the lifting part 21. The round cap 22 can completely cover the lifting part 21 and remain independent after briefly engaging with the external threads of the lifting part 21 downwards. The round cap 22 can also completely disengage from the lifting part 21 after briefly engaging with the external threads of the lifting part 21 upwards.

[0037] The inner support plate 3 adopts a two-layer structure with a larger upper layer and a smaller lower layer. The upper layer is made of Q233A material, and the lower layer is made of high-strength wear-resistant material.

[0038] First, the round cap 22 is installed independently on the lifting part 21 after a brief thread engagement. Therefore, the round cap 22 can rise and fall synchronously with the lifting part 2 but not rotate synchronously. Then, the lifting part 2 drives the round cap 22 of the lifting part 21 through the inner screw sleeve 11. Then, the threaded section of the lifting part 2 engages with the inner screw sleeve 11, while the round cap 22 is placed inside the inner screw sleeve 11 without protruding.

[0039] Positioning support plate 1 is placed between front punch plate seat 4 and the inner top wall of traction beam. At the same time, the bent side plate 14 is forward, and the "L"-shaped structure of the two support plate positioning blocks 12 abuts against the inner corner of the front end of front punch plate seat 4, indicating that positioning support plate 1 is installed in place.

[0040] Then, the inner support plate 3 enters the limiting space formed by the five inner support plate positioning blocks 13 from the front side of the positioning support plate 1 along the boosting slope, indicating that the inner support plate 3 is installed in place.

[0041] The screw-on lifting component 2 lifts the inner support plate 3 through the round cap 22 until it is tightly fitted to the inner top wall of the traction beam.

[0042] Finally, manual welding was used to ensure that the inner support plate 3 was securely and accurately installed on the traction beam.

Claims

1. A 70-ton railway freight train traction beam inner plate assembly welding device, the inner side wall of the traction beam is symmetrically installed with a front punching plate seat (4), and the inner side top wall is to be welded with an inner support plate (3), characterized in that: The device includes a positioning support plate (1) and a lifting component (2). The bottom front end of the positioning support plate (1) is provided with a support plate positioning block (12) corresponding to the front of the front punch plate seat (4) to realize the positioning of the positioning support plate (1) relative to the front punch plate seat (4). The top of the positioning support plate (1) is provided with an inner support plate positioning block (13) corresponding to the circumference of the inner support plate (3) to realize the positioning of the inner support plate (3) relative to the positioning support plate (1). The positioning support plate (1) can be placed between the front punch plate seat (4) and the inner top wall of the traction beam to provide temporary support for the unlifted inner support plate (3). The lifting component (2) can lift the inner support plate (3) relative to the positioning support plate (1) and achieve self-locking after being lifted into place.

2. The 70-ton railway freight train traction beam inner plate group welding device according to claim 1, characterized in that: The support plate positioning block (12) is set in two left and right mirror symmetrical positions, and the whole is in an "L" shape that matches the inner corner contour of the front end of the front punch plate seat (4).

3. The 70-ton railway freight train traction beam inner plate group welding device according to claim 1, characterized in that: The inner support plate positioning blocks (13) respectively abut against the left, right and rear sides of the inner support plate (3).

4. The 70-ton railway freight train traction beam inner plate group welding device according to claim 3, characterized in that: The inner support plate positioning blocks (13) are arranged in five symmetrical positions, and two of them are spaced apart on the left and right sides of the inner support plate (3).

5. The 70-ton railway freight train traction beam inner plate group welding device according to claim 3, characterized in that: The positioning support plate (1) has a bent side plate (14) that bends forward and downward on the front side, thereby providing a boosting slope when the inner support plate (3) is pushed into the upper part of the positioning support plate (1).

6. The welding device for the inner support plate of the traction beam of a 70-ton railway freight train according to claim 3, characterized in that: The lifting member (2) has a threaded middle end and a lifting part (21) at the top. The positioning support plate (1) has an inner screw sleeve (11) at the bottom center that matches the threaded middle end of the lifting member (2). The lifting part (21) is fitted with independent round caps (22). When the lifting member (2) is screwed upward, the round caps (22) lift the inner support plate (3) until it is tightly fitted to the inner top wall of the traction beam.

7. The 70-ton railway freight train traction beam inner plate group welding device according to claim 6, characterized in that: The bottom end of the lifting member (2) is a gripping part (23), which is provided with a pin through hole and equipped with a pin-assisted screwing lifting member (2).

8. The welding device for the inner support plate of the traction beam of a 70-ton railway freight train according to claim 6, characterized in that: The lifting part (21) is partially provided with external threads, and the bottom of the round cap (22) is partially provided with internal threads that match the external threads of the lifting part (21). The round cap (22) can completely cover the lifting part (21) and remain independent of each other after briefly engaging with the external threads of the lifting part (21) downwards. The round cap (22) can completely disengage from the lifting part (21) after briefly engaging with the external threads of the lifting part (21) upwards.

9. The 70-ton railway freight train traction beam inner plate group welding device according to claim 1, characterized in that: The inner support plate (3) adopts a two-layer structure with a larger upper layer and a smaller lower layer. The upper layer is made of Q233A material, and the lower layer is made of high-strength wear-resistant material.

10. The 70-ton railway freight train traction beam inner plate group welding device according to claim 6, characterized in that: The length of the inner screw sleeve (11) is greater than the length of the round cap (22).

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