Quick change device structure of wheel type multipurpose engineering truck

Abstract

The utility model provides a wheel type multi-purpose engineering van quick-change device structure, which comprises a movable arm, an auxiliary arm assembly and a quick-change device, the auxiliary arm assembly is hinged with the movable arm, the quick-change device comprises a bracket, the bracket is hung between the movable arm and the auxiliary arm assembly, and the bracket is fixedly connected with a working machine tool. By the adoption of the technical scheme, when acting force is applied to the rocker, the multiple pin shafts synchronously slide by the same amplitude, the assembling difficulty is lowered, the working machine tool replacing efficiency is improved, the matched contact faces of the multiple pairs of pin shafts and pin holes are kept consistent, the auxiliary arm assembly, the quick replacing device and the movable arm form a closed annular connecting rod assembly, and the working machine tool replacing efficiency is improved. According to the technical scheme, the working machine tool is stably supported, so that the power of the backhoe loader can be stably transmitted to the working machine tool through the movable arm, unbalance loading at the tail end of the movable arm is avoided, the power of the backhoe loader can be stably and uniformly transmitted to the working machine tool, the performance of the working machine tool is perfectly exerted, and corresponding construction tasks can be completed.

Description

Technical Field

[0001] The utility model belongs to the technical field of excavator loaders, and in particular relates to a quick-change device structure for a wheeled multi-purpose engineering vehicle. Background Art

[0002] With the advancement of technology, some construction sites often need to apply multiple functions of backhoe loaders for construction. In this case, if the backhoe loader is switched as a whole, it will take a lot of manpower and material resources. With the advancement of technology, the application of multifunctional backhoe loaders is becoming more and more extensive. Multifunctional backhoe loaders generally include a vehicle body, a boom and a plurality of working machines with different functions. One end of the boom is installed on the vehicle body. By assembling working machines with a variety of different functions on the other end of the boom, the versatility or multi-purpose of the backhoe loader is expanded. Since the working machines are heavy and extremely bulky, the current Some working machines are generally connected to the boom through multiple pins. When the working machine is assembled and switched, it is often necessary to disassemble or insert the pins one by one, which is very labor-intensive and the assembly operation is very cumbersome. In addition, since multiple pins are inserted separately, the contact surfaces of multiple pairs of pins and pin holes are different. Under the action of the working machine's own gravity, an unbalanced load is formed on the boom, and the power transmitted to the working machine through the boom from the excavator loader is also unbalanced, affecting the normal function of the working machine. In addition, when disassembling the working machine, jamming is very likely to occur, affecting the disassembly or assembly efficiency of the working machine. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a quick-change device structure for a wheeled multi-purpose engineering vehicle.

[0004] The utility model is realized through the following technical solutions.

[0005] The utility model provides a quick-change device structure of a wheeled multi-purpose engineering vehicle, comprising a movable arm, an auxiliary arm assembly and a quick-change device, wherein the auxiliary arm assembly is hinged to the movable arm, and the quick-change device comprises a bracket, which is hung between the movable arm and the auxiliary arm assembly, and the bracket is fixedly connected to a working machine.

[0006] The quick-change device also includes a pin shaft, a connecting rod and a rocker. The pin shaft is hinged to one end of the connecting rod, the other end of the connecting rod is hinged to the rocker, and the rocker is also hinged to the bracket.

[0007] The quick-change device also includes a guide seat, the axial direction of the guide seat is arranged in the horizontal direction, the guide seat is fixedly connected to the bracket, and the pin shaft is also sleeved in the guide seat.

[0008] The quick-change device also includes a limit pin and a limit spring. The rocker is provided with a limit hole, the limit hole matches the limit pin in shape and size, one end of the limit spring is connected to the bracket, and the other end of the limit spring is connected to the limit pin.

[0009] The number of the pins is at least 2.

[0010] The auxiliary arm assembly is composed of a plurality of power-assisting rods, and two adjacent power-assisting rods are hinged to each other at the head and tail.

[0011] The auxiliary arm assembly is in the shape of a "7" as a whole.

[0012] The number of the power-assisting rods is 2.

[0013] The working tool is a bucket.

[0014] The backhoe loader is a wheeled backhoe loader.

[0015] The beneficial effect of the utility model is that: by adopting the technical scheme of the utility model, when a force is applied to the rocker to make it rotate, the force is transmitted to the pin shaft through the connecting rod, thereby driving the multiple pin shafts to slide synchronously along the axial direction of the pin hole, and when the multiple pin shafts slide into the pin hole synchronously, the corresponding working machine can be quickly mounted on the boom, and when the multiple pin shafts slide out of the pin hole synchronously, the corresponding working machine can be quickly disassembled from the boom, which is conducive to realizing the rapid loading and unloading switching of multiple working machines with different functions on the excavator loader, reducing the assembly error, reducing the assembly difficulty, and improving the efficiency of replacing the working machine; in addition, since the working machine loading and unloading process is rapid, the working machine will not be only partially mounted on the boom, and the multiple pin shafts also synchronously slide along the axial direction of the pin hole by the same amplitude, so that the contact surfaces of the multiple pairs of pin shafts and the pin hole are consistent, and the working machine is prevented from forming an eccentric load on the boom under the action of its own gravity, so that the power transmitted to the working machine via the boom on the excavator loader remains stable and uniform, so that the function of the working machine can be perfectly exerted, laying a foundation for improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is the front view of the quick-change device of the utility model;

[0018] Figure 3 This utility model Figure 2 Section view along the AA plane;

[0019] Figure 4 It is a structural schematic diagram of the quick-change device of the utility model;

[0020] Figure 5 This is a front view of the connection structure of the rocker, connecting rod and pin shaft of the utility model;

[0021] Figure 6 It is a left view of the connection structure of the rocker, the connecting rod and the pin of the utility model.

[0022] In the figure: 1-working machine, 2-quick change device, 3-boost rod, 4-moving arm, 5-pin shaft, 6-limit pin, 7-pin shaft D, 8-pin shaft A, 9-pin shaft B, 10-pin shaft C, 11-bracket, 12-rocker, 13-connecting rod, 14-guide seat, 15-seat ring, 16-auxiliary arm assembly, 17-limit spring. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0024] like Figures 1 to 6 As shown, the utility model provides a quick-change device structure for a wheeled multi-purpose engineering vehicle, including a boom 4, an auxiliary arm assembly 16 and a quick-change device 2, wherein the auxiliary arm assembly 16 is hinged to the boom 4, and the quick-change device 2 includes a bracket 11, which is hung between the boom 4 and the auxiliary arm assembly 16, and the bracket 11 is fixedly connected to the working machine 1. With the technical solution of the utility model, the bracket 11, the boom 4 and the auxiliary arm assembly 16 surround and form a closed annular connecting rod assembly, which is conducive to forming a stable support for the working machine 1, so that the power transmitted from the excavator loader to the working machine via the boom remains stable and uniform, so that the function of the working machine can be perfectly exerted, laying a foundation for improving construction efficiency.

[0025] Furthermore, the quick-change device 2 further includes a pin 5, a connecting rod 13 and a rocker 12. The pin 5 is hinged to one end of the connecting rod 13, the other end of the connecting rod 13 is hinged to the rocker 12, and the rocker 12 is also hinged to the bracket 11. Figure 1 As shown, a seat ring 15 is fixedly connected to the bracket 11, and a pin D7 is inserted into the seat ring 15. The pin D7 hinges the bracket 11 and the rocker 12 together.

[0026] In addition, the quick-change device 2 further includes a guide seat 14, the guide seat 14 is arranged axially in the horizontal direction, the guide seat 14 is fixedly connected to the bracket 11, and the pin 5 is also sleeved in the guide seat 14. The quick-change device 2 also includes a limit pin 6 and a limit spring 17. The rocker 12 is provided with a limit hole, the limit hole matches the shape and size of the limit pin 6, one end of the limit spring 17 is connected to the bracket 11, and the other end of the limit spring 17 is connected to the limit pin 6. The number of the pins 5 is at least 2.

[0027] Specifically, when it is necessary to replace the working tool at the end of the boom 4, first remove the limit pin 6 on the quick-change device bracket 11, push the rocker 12 to rotate in the counterclockwise direction, and the rocker 12 rotates on the swivel seat while driving the connecting rod 13 to relatively translate in the horizontal direction. When the connecting rod 13 translates, the pin 5 also translates relatively in the horizontal direction, so that the pin 5 escapes from the pin hole on the bracket 11, and the working tool is quickly disassembled. When assembling a new working tool, first align the pin hole on the working tool with the pin 5 on the quick-change device, and then push the rocker 12 to rotate clockwise, while driving the connecting rod 13 to translate away from each other in the horizontal direction, so that the connecting rod 13 pushes the pin 5 along the guide seat 14 to insert into the pin hole on the working tool bracket, and the working tool is quickly connected to the quick-change device. Finally, a limit pin 6 is inserted into the hinge between the upper end of the rocker arm 12 and the seat hole of the bracket 11 to lock the position of the quick-change device, so that the two pin shafts 5 of the working tool are inserted into the pin holes on the bracket 11 at the same time, ensuring that the two pin shafts 5 do not fall out during work, and converting the circular motion of the rocker arm 12 into the horizontal motion of the connecting rod 13, thereby ensuring the reliability of work and improving the efficiency of replacing working tools.

[0028] In addition, there are at least two booms 4 and at least two auxiliary arm assemblies 16, and the quick-change device 2 is arranged between two adjacent booms 4 or between two adjacent auxiliary arm assemblies 16. Figure 1 As shown, the working tool 1 is fixedly connected to the bracket 11 through the pin A8, and the upper and lower ends of the bracket 11 are respectively hung between the boom 4 and the auxiliary arm assembly 16 through the pin B9 and the pin C10.

[0029] In addition, the auxiliary arm assembly 16 is composed of a plurality of power rods 3, and two adjacent power rods 3 are hinged together at the head and tail. 7. A wheeled multi-purpose engineering vehicle quick-change device structure as claimed in claim 6, characterized in that the auxiliary arm assembly 16 is in the shape of a "7" as a whole. There are two power rods 3. The auxiliary arm assembly 16, the quick-change device 2 and the boom form a closed ring-shaped connecting rod assembly, which forms a stable support for the working machine 1, so that the power of the excavator loader can be stably transmitted to the working machine through the boom 2, avoiding unbalanced load at the end of the boom 4, and facilitating the stable and uniform transmission of the power of the excavator loader to the working machine, thereby perfectly exerting the performance of the working machine to complete the corresponding construction tasks.

[0030] In addition, the working machine 1 is preferably a bucket, and the working machine 1 may also be a working machine with other functions such as a loading head. The backhoe loader is preferably a wheeled backhoe loader, and may also be a crawler backhoe loader.

[0031] By adopting the technical solution of the utility model, when a force is applied to the rocker to make it rotate, the force is transmitted to the pin shaft through the connecting rod, thereby driving the multiple pin shafts to slide synchronously along the axial direction of the pin hole. When the multiple pin shafts slide into the pin hole synchronously, the corresponding working machine can be quickly hung and assembled on the boom. When the multiple pin shafts slide out of the pin hole synchronously, the corresponding working machine can be quickly disassembled from the boom, which is conducive to realizing the rapid loading and unloading switching of working machines with multiple functions on the excavator loader, reducing the assembly error, reducing the assembly difficulty, and improving the efficiency of replacing the working machine. In addition, since the working machine loading and unloading process is rapid, the working machine will not be only partially hung on the boom, and the multiple pin shafts also synchronously slide along the axial direction of the pin hole by the same amplitude, so that the contact surfaces of the multiple pairs of pin shafts and the pin hole are consistent, avoiding the working machine from forming an eccentric load on the boom under the action of its own gravity, so that the power transmitted to the working machine via the boom on the excavator loader remains stable and uniform, so that the function of the working machine can be perfectly exerted, laying a foundation for improving construction efficiency.

Claims

1. A quick-change device structure for a wheeled multi-purpose engineering vehicle, characterized in that: The invention comprises a movable arm (4), an auxiliary arm assembly (16) and a quick-change device (2), wherein the auxiliary arm assembly (16) is hinged to the movable arm (4), and the quick-change device (2) comprises a bracket (11), wherein the bracket (11) is hung between the movable arm (4) and the auxiliary arm assembly (16), and the bracket (11) is fixedly connected to a working machine (1).

2. A wheeled multi-purpose engineering vehicle quick-change device structure as claimed in claim 1, characterized in that: The quick-change device (2) further comprises a pin shaft (5), a connecting rod (13) and a rocker (12); the pin shaft (5) is hinged to one end of the connecting rod (13); the other end of the connecting rod (13) is hinged to the rocker (12); and the rocker (12) is also hinged to the bracket (11).

3. A wheeled multi-purpose engineering vehicle quick-change device structure as claimed in claim 2, characterized in that: The quick-change device (2) also includes a guide seat (14), the guide seat (14) is axially arranged in a horizontal direction, the guide seat (14) is fixedly connected to the bracket (11), and the pin shaft (5) is also sleeved in the guide seat (14).

4. A wheeled multi-purpose engineering vehicle quick-change device structure as claimed in claim 2, characterized in that: The quick-change device (2) also includes a limit pin (6) and a limit spring (17). The rocker (12) is provided with a limit hole, the limit hole matches the shape and size of the limit pin (6), one end of the limit spring (17) is connected to the bracket (11), and the other end of the limit spring (17) is connected to the limit pin (6).

5. A wheeled multi-purpose engineering vehicle quick-change device structure as claimed in claim 2, characterized in that: The number of the pins (5) is at least 2.

6. A wheeled multi-purpose engineering vehicle quick-change device structure as claimed in claim 1, characterized in that: The auxiliary arm assembly (16) is composed of a plurality of power-assisting rods (3), and two adjacent power-assisting rods (3) are hinged to each other at the head and tail.

7. A wheeled multi-purpose engineering vehicle quick-change device structure as claimed in claim 6, characterized in that: The auxiliary arm assembly (16) is in the shape of a "7" as a whole.

8. A wheeled multi-purpose engineering vehicle quick-change device structure as claimed in claim 6, characterized in that: The number of the power-assisting rods (3) is 2.

9. A wheeled multi-purpose engineering vehicle quick-change device structure as claimed in claim 1, characterized in that: The working machine (1) is a bucket.

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