Turnover device for locomotive chassis end steel structure

Abstract

The utility model discloses a turnover device of a locomotive chassis end steel structure, which comprises an end steel structure, two lifting devices arranged on two sides of the end steel structure and a positioning platform arranged below the end steel structure, and each lifting device comprises a lifting mounting frame and a sliding structure. Sliding grooves are formed in the side walls of the two sides of the interior of the lifting mounting frame, the two sides of the sliding structures are slidably arranged on the sliding grooves correspondingly, the lower portions of the sliding structures are connected with the output end of a multi-stage oil cylinder, the positioning platform comprises a positioning table, and positioning structures are arranged on the two sides of the edge of each edge of the positioning table correspondingly; the positioning structure comprises a positioning seat and a positioning block, a first pin shaft hole and a second pin shaft hole are formed in the upper end and the lower end of the positioning seat respectively, and the positioning seat fixes the positioning block in the mode that pin shafts penetrate through the first pin shaft hole and the second pin shaft hole respectively. The turnover device has the advantages of being simple in turnover operation, high in safety, high in efficiency and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of end steel structure turning devices, in particular to a turning device for an end steel structure of a locomotive underframe. Background Art

[0002] After the end steel structure is manufactured, it is generally in the following Figure 6 The inverted state shown needs to be flipped 180 degrees to make it in the upright state before the next step of the chassis installation process can be carried out. For the sake of convenience and speed, the current technology generally uses a crane to flip it, fix the caliper on the wire rope to clamp the rear end of the end steel structure, and then install the wire rope on the hook. The hook is lifted upward to lift the end steel structure and put the end steel structure in an upright state. The hook descends, and during the descent process, the hoisting personnel must push the end steel structure by hand to keep a certain inclination, ensuring that the inclination is to make the center of gravity biased to the inclined side, and finally make the lower side of the front end of the end steel structure contact with the ground in the inclined state, the hook slowly descends and performs a flip-down descent with the lower side of the front end as the axis, and finally completes the 180-degree flipping operation of the end steel structure.

[0003] This method has the following disadvantages:

[0004] 1. Flipping is difficult, requiring close cooperation between the crane driver and the hoisting personnel, and requires certain hoisting experience;

[0005] 2. Low safety, there is a possibility of the end steel structure falling or personnel being injured;

[0006] like Fig. 9 As shown, a lifting positioner is used for flipping, and a special flipping tool is provided. Various clamps are designed and installed on the tooling to limit the movement of the end steel structure. When the end steel structure is flipped 180 degrees, the corresponding clamps can be loosened to allow the end steel structure to be lifted vertically from the tooling.

[0007] This method has the following disadvantages:

[0008] 1. The operation is cumbersome and inefficient. It needs to be equipped with four upper clamping fixtures, four lower support fixtures, and four top clamps on both sides. The upper clamping fixture and the lower support fixture need to be movable to make room so that the end steel structure can be lifted vertically. The movement and clamping operations of these fixtures are cumbersome and inefficient. The lifting and positioner needs to be lifted and lowered first and then turned over, which is also inefficient;

[0009] 2. The flipping cost is high and the utilization rate is low. The lifting and positioner equipped with flipping tooling is mainly used to weld the products. Here it is only for flipping. If it is used for both welding and flipping, it will cause conflicts between welding and flipping, which will easily affect the production rhythm and the equipment will be idle most of the time.

[0010] Therefore, in order to solve the above problems, a turning device for the steel structure at the end of a locomotive underframe is proposed. Utility Model Content

[0011] The utility model aims to provide a tilting device for the end steel structure of a locomotive underframe, comprising an end steel structure, two lifting devices arranged on both sides of the end steel structure and a positioning platform arranged below the end steel structure, the lifting device comprising a lifting mounting frame and a sliding structure, both side walls inside the lifting mounting frame are provided with sliding grooves, both sides of the sliding structure are respectively slidably arranged on the sliding grooves, the bottom of the sliding structure is connected to the output end of a multi-stage oil cylinder, the positioning platform comprises a positioning platform, both sides of the edge of each side of the positioning platform are provided with positioning structures, the positioning structure comprises a positioning seat and a positioning block, the upper and lower ends of the positioning seat are respectively provided with a pin shaft hole 1 and a pin shaft hole 2, and the positioning seat fixes the positioning block by respectively penetrating the pin shaft hole 1 and the pin shaft hole 2 through the pin shaft.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model enables a pin to pass through a pin hole formed on a rectangular mounting block and inserted into a crane hole of an end steel structure, and drives the sliding structure to slide by starting a multi-stage oil cylinder, so that the end steel structure can be easily flipped. The utility model has the advantages of simple flipping operation, high safety, high efficiency and low cost.

[0014] The utility model realizes the connection between the positioning seat and the positioning block by respectively inserting two pin shafts into the pin shaft hole one and the pin shaft hole two, and pulling out the pin shaft in the pin shaft hole one, so that a certain gap is left between the positioning block and the end steel structure for easy flipping, and inserting the pin shaft into the pin shaft hole one can facilitate the positioning block to clamp the end steel structure, thereby facilitating the positioning of the end steel structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the lifting device of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the sliding structure of the utility model without a pair of wheels;

[0018] Figure 4 It is a schematic diagram of the overall structure of the sliding structure of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the pin of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the end steel structure of the utility model;

[0021] Figure 7 It is a structural schematic diagram of the positioning platform of the utility model;

[0022] Figure 8 It is a structural schematic diagram of the positioning structure of the utility model.

[0023] Fig. 9 It is a schematic diagram of the connection structure between the existing end steel structure and the special flip tooling.

[0024] The reference numerals and names in the figures are as follows:

[0025] 1. Lifting device; 11. Lifting mounting frame; 12. Sliding groove; 13. Sliding structure; 131. Rectangular mounting block; 1311. Pin hole; 1312. Bolt hole; 132. Side mounting plate; 1321. Wheel pair hole one; 1322. Side wheel mounting frame one; 1323. Side wheel mounting frame two; 1324. Wheel pair hole two; 133. Wheel pair one; 134. Side wheel one; 135. Wheel pair two; 136. Locking bolt; 137. Pin; 1371. Groove; 138. Side wheel two; 14. Multi-stage cylinder; 2. End steel structure; 21. Crane hole; 3. Positioning platform; 31. Positioning platform; 32. Positioning structure; 321. Positioning seat; 322. Positioning block; 323. Pin shaft hole one; 324. Pin shaft hole two. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] As attached Figure 1 , 2 As shown in , 6, the utility model provides a turning device for the end steel structure of a locomotive underframe, comprising an end steel structure 2, two lifting devices 1 arranged on both sides of the end steel structure 2, and a positioning platform 3 arranged below the end steel structure 2, the lifting device 1 comprises a lifting mounting frame 11 and a sliding structure 13, both side walls of the lifting mounting frame 11 are provided with sliding grooves 12, both sides of the sliding structure 13 are respectively slidably arranged on the sliding grooves 12, and the bottom of the sliding structure 13 is connected to the output end of the multi-stage oil cylinder 14;

[0028] As attached Figure 7 , 8As shown, the positioning platform 3 includes a positioning platform 31, and positioning structures 32 are provided on both sides of the edges of each side of the positioning platform 31. The positioning structure 32 includes a positioning seat 321 and a positioning block 322. The upper and lower ends of the positioning seat 321 are respectively provided with a pin shaft hole 1 323 and a pin shaft hole 2 324. The positioning seat 321 fixes the positioning block 322 by a pin shaft that penetrates the pin shaft hole 1 323 and the pin shaft hole 2 324 respectively.

[0029] Specifically, as attached Figure 3-5 As shown, the sliding structure 13 includes a rectangular mounting block 131, a pin hole 1311 is provided at the center of the rectangular mounting block 131, a pin 137 is provided in the pin hole 1311, and the pin 137 is locked by a locking bolt 136. A bolt hole 1312 is provided on one side of the rectangular mounting block 131, and side mounting plates 132 are provided on both sides of the rectangular mounting block 131. Wheel pair holes 1321 are provided on the front and rear ends of the side mounting plates 132, and two wheel pair holes 1321 located opposite to each other are provided on the upper side. A wheelset 133 is arranged, a wheelset hole 1324 is opened on one side below the side mounting plate 132, a wheelset 135 is arranged between the wheelset holes 1324 that are opposite to each other, a side wheel mounting frame 1322 is arranged at the center position above the two side mounting plates 132, a side wheel 134 is rotatably arranged in the side wheel mounting frame 1322, a side wheel mounting frame 1323 is arranged on one side of the two side mounting plates 132 away from the wheelset hole 1324, and a side wheel 138 is rotatably arranged inside the side wheel mounting frame 1323.

[0030] Specifically, a groove 1371 is formed at the front end of the pin 137 .

[0031] Specifically, the pin 137 passes through the pin hole 1311 at the center of the rectangular mounting block 131 , and extends to the outside of the rectangular mounting block 131 and is inserted into the crane holes 21 at the center of both sides of the end steel structure 2 .

[0032] Specifically, the locking bolt 136 passes through the bolt hole 1312 to lock the pin 137 .

[0033] Working principle: When using:

[0034] Step 1: Place the end steel structure 2 on the positioning platform 31, and make the positioning block 322 contact the side wall of the end steel structure 2, insert the two pins into the pin hole 1 323 and the pin hole 2 324 respectively, so that the positioning block 322 is fixed on the positioning seat 321, and the end steel structure 2 is positioned;

[0035] Step 2: Start the oil pump to extend the oil cylinder rods of the two multi-stage oil cylinders 14 in the two lifting devices 1, driving the two sliding structures 13 to rise, until the pin holes 1311 opened at the center positions of the rectangular mounting blocks 131 of the two sliding structures 13 coincide with the axes of the two crane holes 21 in the end steel structure 2;

[0036] Step 3: Insert the pin 137 into the pin hole 1311 of the sliding structure 13, and insert it through the rectangular mounting block 131 into the crane hole 21 of the end steel structure 2;

[0037] Step 4: Insert the locking bolt 136 into the bolt hole 1312 to limit the axial movement of the pin 137;

[0038] Step 5: Pull out the pins in the pin holes 323 above the eight positioning seats 321, so that the positioning block 322 rotates around the center line of the pin of the pin hole 324, so that the subsequent positioning structure 32 does not interfere with the lifting and flipping of the end steel structure 2;

[0039] Step 6: Start the oil pump to extend the oil cylinder rods of the two multi-stage oil cylinders 14 in the two lifting devices 1, driving the two sliding structures 13 to rise, and then the two pins 137 in the two sliding structures 13 rise, and the center of gravity of the end steel structure 2 will flip 180° around the axis of the pin 137 during the rising process;

[0040] Step 7: The end steel structure 2 descends until it contacts the upper surface of the platform and sits firmly, at which time the end steel structure 2 is turned 180 degrees;

[0041] Step 8: Loosen the locking bolt 136, pull out the pin 137, lift out the end steel structure 2, rotate the positioning block 322, insert the eight pins into the pin holes 323 above the eight positioning structures 32, and position the end steel structure 2.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A turning device for a locomotive underframe end steel structure, comprising an end steel structure (2), two lifting devices (1) arranged on both sides of the end steel structure (2), and a positioning platform (3) arranged below the end steel structure (2), characterized in that: The lifting device (1) comprises a lifting mounting frame (11) and a sliding structure (13). The side walls on both sides of the lifting mounting frame (11) are provided with sliding grooves (12). The two sides of the sliding structure (13) are respectively slidably arranged on the sliding grooves (12). The bottom of the sliding structure (13) is connected to the output end of the multi-stage oil cylinder (14). The positioning platform (3) comprises a positioning platform (31). The positioning platform (31) has positioning structures (32) on both sides of the edge of each side. The positioning structure (32) comprises a positioning seat (321) and a positioning block (322). The upper and lower ends of the positioning seat (321) are respectively provided with a pin shaft hole 1 (323) and a pin shaft hole 2 (324). The positioning seat (321) fixes the positioning block (322) by means of a pin shaft that passes through the pin shaft hole 1 (323) and the pin shaft hole 2 (324).

2. The turning device of the locomotive underframe end steel structure according to claim 1, characterized in that: The sliding structure (13) comprises a rectangular mounting block (131), a pin hole (1311) is provided at the center of the rectangular mounting block (131), a pin (137) is provided in the pin hole (1311), and the pin (137) is locked by a locking bolt (136), a bolt hole (1312) is provided on one side of the upper part of the rectangular mounting block (131), side mounting plates (132) are provided on both sides of the rectangular mounting block (131), a wheel pair hole (1321) is provided on the front and rear ends of the upper part of the side mounting plates (132), and two wheel pair holes (1321) located opposite to each other are provided. A wheel pair one (133) is provided, a wheel pair hole two (1324) is opened on one side below the side mounting plate (132), a wheel pair two (135) is arranged between the wheel pair holes (1324) that are opposite to each other, a side wheel mounting frame one (1322) is respectively arranged at the center position above the two side mounting plates (132), a side wheel one (134) is rotatably arranged inside the side wheel mounting frame one (1322), a side wheel mounting frame two (1323) is arranged on one side of the two side mounting plates (132) away from the wheel pair hole two (1324), and a side wheel two (138) is rotatably arranged inside the side wheel mounting frame two (1323).

3. The turning device of the locomotive underframe end steel structure according to claim 2, characterized in that: The front end of the pin (137) is provided with a groove (1371).

4. The turning device of the locomotive underframe end steel structure according to claim 2, characterized in that: The pin (137) passes through a pin hole (1311) provided at the center of the rectangular mounting block (131), and extends to the outside of the rectangular mounting block (131) and is inserted into the crane holes (21) provided at the center of both sides of the end steel structure (2).

5. The turning device of the locomotive underframe end steel structure according to claim 2, characterized in that: The locking bolt (136) passes through the bolt hole (1312) to lock the pin (137).

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