Auxiliary positioning device of crane hoisting chassis

Abstract

The utility model belongs to the technical field of lifting of railway wagon underframes, and particularly relates to an auxiliary positioning device of a travelling crane lifting underframe, which comprises a hoop device, a longitudinal positioning shaft assembly and a transverse positioning shaft assembly, and the hoop device is connected with the longitudinal positioning shaft assembly and the transverse positioning shaft assembly through round pins. The longitudinal positioning shaft assembly and the transverse positioning shaft assembly are perpendicular to each other, and the hoop device is connected to a center plate supporting seat of the chassis tire through a fastening bolt. The crane hoisting chassis is positioned through the hoop device, the longitudinal positioning shaft assembly and the transverse positioning shaft assembly, the transverse and longitudinal positions of the chassis are quickly and accurately positioned, abnormal loss caused by inaccurate positioning due to sight shielding is prevented, and the crane hoisting chassis positioning device is convenient to operate, safe and reliable.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting technology for railway freight car underframes, and particularly relates to an auxiliary positioning device for hoisting underframes of overhead cranes. Background Technology

[0002] To facilitate loading, unloading, and transportation of goods, truck chassis usually need to be lifted to a suitable position by a crane. When the driver operates the crane to lift the chassis, the direction and distance of the chassis movement can only be communicated through hand gestures from on-site personnel. Due to the large size of the truck chassis and the crane, the view may be obstructed, causing inconvenience and safety hazards to the driver and on-site personnel. At the same time, obstructed view can lead to inaccurate positioning, causing the center plate, center plate rivets, and chassis tires to collide and cause abnormal losses. Utility Model Content

[0003] The purpose of this utility model is to provide an auxiliary positioning device for overhead crane chassis, which solves the problem of abnormal losses caused by inaccurate positioning due to obstructed vision during traditional hoisting processes.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An auxiliary positioning device for a crane underframe includes a clamping device, a longitudinal positioning shaft assembly, and a transverse positioning shaft assembly. The clamping device is connected to both the longitudinal and transverse positioning shaft assemblies by round pins. The longitudinal and transverse positioning shaft assemblies are perpendicular to each other. The clamping device is connected to the center plate support seat of the underframe jig by fastening bolts.

[0006] Preferably, the clamp device includes an annular clamp and a positioning bolt. The annular clamp consists of two semicircular rings, one end of which is connected by a hinge, and the other end is connected by a fastening bolt. Bolt holes are provided on the annular clamp. The positioning bolt passes through the bolt holes and the positioning holes of the center plate support to position the annular clamp. A longitudinal positioning shaft connecting seat and a transverse positioning shaft connecting seat are fixed on the annular clamp. The longitudinal positioning shaft connecting seat is connected to the longitudinal positioning shaft by a round pin, and the transverse positioning shaft connecting seat is connected to the transverse positioning shaft by a round pin.

[0007] Preferably, the longitudinal positioning shaft assembly includes a first longitudinal shaft, a second longitudinal shaft, a third longitudinal shaft, and an L-shaped shaft. The first longitudinal shaft, the second longitudinal shaft, the third longitudinal shaft, and the L-shaped shaft are sequentially fixedly connected by connecting pins and washers, and a square mark is slidably connected on the L-shaped shaft.

[0008] Preferably, the L-shaped shaft is provided with round holes spaced 20mm apart, and the square mark is connected to the L-shaped shaft through the round holes by a positioning bolt, which facilitates the positioning of the square mark on the L-shaped shaft.

[0009] Preferably, stops are fixed on the first longitudinal axis, the second longitudinal axis, the third longitudinal axis and the L-shaped axis to prevent excessive rotation of the longitudinal axis and ensure the straightness of the longitudinal positioning axis assembly.

[0010] Preferably, the lateral positioning shaft assembly includes a first lateral shaft, a second lateral shaft, and a third lateral shaft. The first lateral shaft, the second lateral shaft, and the third lateral shaft are fixedly connected in sequence by connecting pins and washers, and a square mark is slidably connected on the third lateral shaft.

[0011] Preferably, the third transverse axis is provided with round holes spaced 20mm apart, and the square mark is connected to the third transverse axis by a positioning bolt passing through the round hole, which facilitates the positioning of the square mark on the third transverse axis.

[0012] Preferably, the first, second, and third transverse axes are all fixed with stop blocks to prevent excessive rotation of each transverse axis and ensure the straightness of the transverse positioning axis assembly.

[0013] The beneficial effects achieved by this utility model are:

[0014] (1) The crane crane underframe is positioned by a clamp device, a longitudinal positioning shaft and a transverse positioning shaft. The transverse and longitudinal positions of the underframe are quickly and accurately positioned to prevent abnormal losses caused by obstructed vision. The operation is convenient, safe and reliable.

[0015] (2) One end of the ring clamp is connected by a hinge, which makes it easy to open the clamp and facilitates installation and disassembly;

[0016] (3) By combining the ring clamp with the longitudinal axis square mark and the transverse axis square mark, the driver can accurately determine the position of the chassis center plate, avoiding damage caused by the collision of the center plate, center plate rivets and chassis tires due to inaccurate positioning. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the clamp device in an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the longitudinal positioning shaft in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the transverse positioning shaft in an embodiment of the present utility model;

[0021] Figure 5 This is a state diagram of the structure during use in an embodiment of this utility model;

[0022] Figure 6This is a static diagram of the structure of an embodiment of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Clamping device; 11. Ring clamp; 12. Hinge; 13. Longitudinal positioning shaft connecting seat; 14. First positioning bolt; 15. Transverse positioning shaft connecting seat; 16. Fastening bolt; 2. Composition of longitudinal positioning shafts; 21. First longitudinal shaft; 22. Second longitudinal shaft; 23. Third longitudinal shaft; 24. L-shaped shaft; 25. First connecting pin; 26. Second positioning bolt; 27. Square mark on longitudinal shaft; 3. Composition of transverse positioning shafts; 31. First transverse shaft; 32. Second transverse shaft; 33. Third transverse shaft; 34. Second connecting pin; 35. Third positioning bolt; 36. Square mark on transverse shaft; 4. Core plate; 5. Core plate support seat; 6. Side beam; 7. Impact seat; 8. End beam. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1 , 5 As shown, an auxiliary positioning device for a crane underframe includes a clamp device 1, a longitudinal positioning shaft assembly 2, and a transverse positioning shaft assembly 3. The clamp device 1 is connected to the longitudinal positioning shaft assembly 2 and the transverse positioning shaft assembly 3 by round pins. The longitudinal positioning shaft assembly 2 and the transverse positioning shaft assembly 3 are perpendicular to each other. The clamp device 1 is connected to the center plate support seat 5 of the underframe tire by fastening bolts and is located around the bottom of the center plate 4.

[0026] like Figure 1 , 2 As shown, the clamp device 1 includes an annular clamp 11 and a first positioning bolt 14. The annular clamp 11 consists of two semicircular rings. One end of the two semicircular rings is connected by a hinge 12 to ensure that the two semicircular rings can be opened and closed. The other end is connected by a fastening bolt 16 to ensure that the annular clamp 11 is tightly connected to the mandrel support 5. Bolt holes are opened on the annular clamp 11. The first positioning bolt 14 passes through the bolt holes and the positioning holes of the mandrel support 5 to position the annular clamp 11, ensuring that the annular clamp 11 does not rotate on the mandrel support 5. A longitudinal positioning shaft connecting seat 13 and a transverse positioning shaft connecting seat 15 are fixed on the annular clamp 11. The longitudinal positioning shaft connecting seat 15 is connected to the longitudinal positioning shaft assembly 2 by a round pin, and the transverse positioning shaft connecting seat 15 is connected to the transverse positioning shaft assembly 3 by a round pin.

[0027] like Figure 3As shown, the longitudinal positioning shaft assembly 2 includes a first longitudinal shaft 21, a second longitudinal shaft 22, a third longitudinal shaft 23, an L-shaped shaft 24, and a longitudinal shaft square mark 27. The first longitudinal shaft 21, the second longitudinal shaft 22, the third longitudinal shaft 23, and the L-shaped shaft 24 are sequentially fixedly connected by a first connecting pin 25 and a washer. The washer ensures that the preload is evenly distributed and prevents loosening. When the first connecting pin is tightened, the washer acts as a buffer at or below the first connecting pin head, so that the preload is evenly distributed to the connected parts, which helps to reduce local stress concentration, reduce the risk of deformation and damage to the parts, and improve the stability and reliability of the connection. The L-shaped shaft 24 has round holes spaced 20mm apart. The longitudinal shaft square mark 27 is fixed to the L-shaped shaft 24 through the round holes by a second positioning bolt 26, which facilitates the positioning of the longitudinal shaft square mark 27 on the L-shaped shaft 24.

[0028] like Figure 4 As shown, the transverse positioning shaft assembly 3 includes a first transverse shaft 31, a second transverse shaft 32, a third transverse shaft 33, and a transverse square mark 36. The first transverse shaft 31, the second transverse shaft 32, and the third transverse shaft 33 are sequentially fixedly connected by a second connecting pin 34 and a washer. The washer ensures that the preload is evenly distributed and prevents loosening, thus distributing the preload evenly to the connected parts, which helps to reduce local stress concentration and lower the risk of deformation and damage to the parts. The third transverse shaft 33 has round holes spaced 20mm apart. The transverse square mark 36 is connected to the third transverse shaft 33 through the round holes by a third positioning bolt 35, which facilitates the positioning of the transverse square mark 36 on the third transverse shaft 33.

[0029] Usage process: such as Figure 5 As shown, the first positioning bolt 14 of the auxiliary positioning device passes through the bolt hole of the annular clamp 11 and the positioning hole of the core plate support 5 to position the annular clamp 11, ensuring that the annular clamp 11 does not rotate on the core plate support 5. The bottom end and side wall of the impact seat 7 are in contact with the L-shaped shaft 24. The bottom end of the impact seat 7 is positioned by the longitudinal axis square mark 27. The top two sides of the impact seat 7 are connected to the end beams 8, and the ends of the end beams 8 are respectively connected to the side beams 6. The side beams 6 are in contact with the third transverse axis 33, and the bottom end of the side beams 6 is positioned by the transverse square mark 36. This allows for quick and accurate positioning of the base frame relative to the base frame tire in both the transverse and longitudinal directions. After use, the auxiliary positioning device can be folded and retracted. Figure 6 As shown, this reduces the volume occupied.

Claims

1. An auxiliary positioning device for a crane underframe, characterized in that, It includes a clamping device, a longitudinal positioning shaft assembly, and a transverse positioning shaft assembly. The clamping device is connected to the longitudinal positioning shaft assembly and the transverse positioning shaft assembly by round pins. The longitudinal positioning shaft assembly and the transverse positioning shaft assembly are perpendicular to each other. The clamping device is connected to the center plate support seat of the base frame tire by fastening bolts.

2. The auxiliary positioning device for a crane underframe according to claim 1, characterized in that, The clamp device includes an annular clamp and a positioning bolt. The annular clamp consists of two semicircular rings, one end of which is connected by a hinge, and the other end is connected by a fastening bolt. Bolt holes are provided on the annular clamp. The positioning bolt passes through the bolt holes and the positioning holes of the center plate support to position the annular clamp. A longitudinal positioning shaft connecting seat and a transverse positioning shaft connecting seat are fixed on the annular clamp. The longitudinal positioning shaft connecting seat is connected to the longitudinal positioning shaft by a round pin, and the transverse positioning shaft connecting seat is connected to the transverse positioning shaft by a round pin.

3. The auxiliary positioning device for a crane underframe according to claim 1, characterized in that, The longitudinal positioning shaft assembly includes a first longitudinal shaft, a second longitudinal shaft, a third longitudinal shaft, and an L-shaped shaft. The first longitudinal shaft, the second longitudinal shaft, the third longitudinal shaft, and the L-shaped shaft are sequentially fixedly connected by connecting pins and washers. A square mark is slidably connected on the L-shaped shaft.

4. The auxiliary positioning device for a crane underframe according to claim 3, characterized in that, The L-shaped shaft has round holes spaced 20mm apart. The square mark is connected to the L-shaped shaft through the round holes by a positioning bolt, which facilitates the positioning of the square mark on the L-shaped shaft.

5. The auxiliary positioning device for a crane underframe according to claim 4, characterized in that, Stops are fixed on the first longitudinal axis, the second longitudinal axis, the third longitudinal axis, and the L-shaped axis to prevent excessive rotation of the longitudinal axis and ensure the straightness of the longitudinal positioning axis assembly.

6. The auxiliary positioning device for a crane underframe according to claim 1, characterized in that, The lateral positioning shaft assembly includes a first lateral shaft, a second lateral shaft, and a third lateral shaft. The first lateral shaft, the second lateral shaft, and the third lateral shaft are fixedly connected in sequence by connecting pins and washers. A square mark is slidably connected on the third lateral shaft.

7. The auxiliary positioning device for a crane underframe according to claim 6, characterized in that, The third transverse axis is provided with round holes spaced 20mm apart. The square mark is connected to the third transverse axis by a positioning bolt passing through the round hole, which facilitates the positioning of the square mark on the third transverse axis.

8. The auxiliary positioning device for a crane underframe according to claim 7, characterized in that, The first, second, and third transverse axes are all fixed with stop blocks to prevent excessive rotation of each transverse axis and ensure the straightness of the transverse positioning axis assembly.

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