CN203473702U - Integral loading, integral unloading and self-unloading automatic switching mechanism of pull arm device - Google Patents

Abstract

The utility model relates to an automatic conversion mechanism for a pulling arm device, which can be assembled, disassembled and self-unloading, and belongs to the technical field of pulling arm type garbage trucks; and the stretching of the spring to realize the automatic conversion of self-unloading and self-unloading, which makes the operation safer and more reliable. The scheme is: both the lifting arm and the rotating arm are arranged on the rear axle, and the lifting arm can rotate around the rear axle, the telescopic arm is movably arranged in the lifting arm, and the telescopic arm can move back and forth in the lifting arm , the lifting arm is provided with a rotating shaft, the locking hook is movably arranged on the rotating shaft, the locking hook can rotate around the rotating shaft, a spring is arranged between the lifting arm and the locking hook, and one end of the spring It is arranged on the lifting arm, and the other end of the spring is arranged on the locking hook; the utility model is mainly used for pull-arm type garbage trucks.

Description

An automatic conversion mechanism for the whole assembly and disassembly of the pulling arm device and self-unloading

technical field

The utility model relates to an automatic conversion mechanism for a pulling arm device, which can be assembled and disassembled and self-unloading, and belongs to the technical field of pulling arm type garbage trucks. the

Background technique

During the working process of the original pulling arm device, the conversion mechanism for self-unloading and self-unloading is located at the bottom of the lifting arm, and the function conversion is completed by pushing the slide bar by the cylinder. However, this mechanism is located at the bottom of the carriage and cannot be seen. If the limit If it is not in place, it is easy to cause the risk that the sliding bar will be disengaged and the rotating arm will fall. . the

Utility model content

The utility model overcomes the deficiencies in the prior art, and provides an externally mounted device that relies on the expansion and contraction of the telescopic arm and the stretching of the spring to realize the automatic conversion between self-unloading and self-unloading, and prevents the position-limiting disengagement during the self-unloading process. The risk of dropping the swing arm makes the operation safer and more reliable. The pull arm device has an automatic conversion mechanism for self-unloading and self-unloading. the

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: an automatic conversion mechanism for the pull arm device to be assembled and disassembled and self-unloaded, including a lifting arm, a telescopic arm, a rotating arm and a rear axle, the lifting arm and the The rotating arms are all arranged on the rear axle, and the lifting arm can rotate around the rear axle. The telescopic arm is movably arranged in the lifting arm, and the telescopic arm can move back and forth in the lifting arm. A rotating shaft is provided, and the locking hook is movably arranged on the rotating shaft, and the locking hook can rotate around the rotating shaft. A pin shaft is arranged on the locking hook, and the pin shaft is arranged parallel to the rotating shaft. A spring is arranged between the tight hooks, one end of the spring is arranged on the lifting arm, the other end of the spring is arranged on the locking hook, a collision block is arranged on the telescoping arm, and a limit is arranged on the rotating arm. The position block, the limit block and the locking hook are matched with each other. the

The number of the locking hooks is two, and the two locking hooks are arranged symmetrically on both sides of the lifting arm, and both of the locking hooks are connected by a pin shaft and a rotating shaft. the

Both ends of the pin shaft and the rotating shaft are provided with retaining rings, and the retaining rings are used to fix the locking hook. the

The collision block is groove-shaped, and the collision block is located in the middle of the pin shaft, and is used to push the pin shaft to move. the

Compared with the prior art, the utility model has the beneficial effects that: in the utility model, the lifting arm, the telescopic arm and the rotating arm adopt an external mechanical structure, that is, the outside of the utility model is clearly visible during operation, which is relatively different from the existing During the working process of the pulling arm device, the conversion mechanism of self-installation and self-unloading is located at the bottom of the lifting arm, and the function conversion is completed by pushing the slide bar by the cylinder. However, this mechanism is located at the bottom of the carriage and cannot be seen. If the limit is not correct In place, it is easy to cause the slide bar to disengage and cause the danger of the rotating arm falling. The utility model is designed in order to avoid the above-mentioned accidents, and adopts an external mechanical drive, which greatly reduces the occurrence of the above-mentioned accidents. the

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described further. the

Fig. 1 is a schematic structural view of the utility model, that is, a front view of the utility model. the

FIG. 2 is a top view of FIG. 1 . the

Fig. 3 is a cross-sectional view along line A in Fig. 2 . the

FIG. 4 is a cross-sectional view of the shaft body along the pin axis and the rotating axis B in FIG. 1 . the

In the figure, 1 is the lifting arm, 2 is the telescopic arm, 3 is the rotating arm, 4 is the rear axle, 5 is the rotating shaft, 6 is the locking hook, 7 is the pin shaft, 8 is the spring, 9 is the impact block, 10 is the Limiting block, 11 is retaining ring. the

Detailed ways

As shown in Figures 1 to 4, the utility model is an automatic conversion mechanism for a pull arm device that is assembled and unloaded and self-unloaded, including a lifting arm 1, a telescopic arm 2, a rotating arm 3 and a rear axle 4, and the lifting arm 1 and the pivoting arm 3 are both arranged on the rear axle 4, and the lifting arm 1 can rotate around the rear axle 4, and the telescopic arm 2 is movably arranged in the lifting arm 1, and the telescopic arm 2 can be placed in the lifting arm Reciprocating movement, the lifting arm 1 is provided with a rotating shaft 5, the locking hook 6 is movably arranged on the rotating shaft 5, the locking hook 6 can rotate around the rotating shaft 5, and the locking hook 6 is provided with a pin shaft 7 , the pin shaft 7 is arranged parallel to the rotating shaft 5, a spring 8 is arranged between the lifting arm 1 and the locking hook 6, one end of the spring 8 is arranged on the lifting arm 1, and the other end of the spring 8 One end is arranged on the locking hook 6 , a collision block 9 is arranged on the telescopic arm 2 , and a limiting block 10 is arranged on the rotating arm 3 , and the limiting block 10 is matched with the locking hook 6 . the

The number of the locking hooks 6 is two, and the two locking hooks 6 are symmetrically arranged on both sides of the lifting arm 1 , and the two locking hooks 6 are connected by the pin shaft 7 and the rotating shaft 5 . the

Both ends of the pin shaft 7 and the rotating shaft 5 are provided with retaining rings 11 , and the retaining rings 11 are used to fix the locking hook 6 . the

The collision block 9 is groove-shaped, and the collision block 9 is located in the middle of the pin shaft 7 for pushing the pin shaft 7 to move. the

As shown in Figure 1, the utility model includes a groove-shaped collision block 9 located on the telescopic arm 2, a locking hook 6 installed on the lifting arm 1, a rotating shaft 5, a pin shaft 7, a spring 8, and a locking hook located on the rotating arm 3. The pin shaft 7 is installed on the locking hook 6, and the locking hook 6 can rotate around the rotating shaft 5. One end of the spring 8 is connected to the locking hook 6, and the other end is connected to the lifting arm 1 Above, the expansion and contraction of the spring 8 can pull the locking hook 6 to rotate around the rotating shaft 5 . During the unloading operation, when the telescopic arm 2 retracts and is almost in place, the groove-shaped bumper 9 on the telescopic arm 2 bumps into the pin 7 on the locking hook 6, driving the pin 7 to move, and the movement of the pin 7 drives the lock. The tight hook 6 rotates around the rotating shaft 5, and when the telescopic arm 2 retracts back to its original position, the locking hook 6 disengages the limit block 10, and at this moment, the lifting arm 1 drives the telescopic arm 2 to rotate around the rotating arm 3 to complete the unloading task. The action sequence of the installation operation is reversed. During the self-unloading operation, the telescopic arm 2 is in a fully stretched state, and at this moment, the locking hook 6 hooks the limit block 10 on the rotating arm 3 under the pulling force of the spring 8, and drives the rotating arm 3 to rotate together. the

It can be seen from FIG. 2 that the locking hooks 6 are installed on both sides of the lifting arm 1 , and are located outside the lifting arm 1 . The locking hooks 6 on both sides are connected with the rotating shaft 5 through the pin shaft 7 . the

It can be seen from FIG. 3 that the pin shaft 7 is installed on the locking hook 6 , and the locking hook 6 can rotate around the rotating shaft 5 . When the telescopic arm 2 is retracted to its original position, the bumper 9 hits the pin shaft 7, which drives the pin shaft 7 to move, and the movement of the pin shaft 7 drives the locking hook 6 to rotate around the rotating shaft 5, so that the locking hook 6 is disengaged from the limit block 10. the

Fig. 4 shows the installation method of the pin shaft 7 and the rotating shaft 5. It can be seen from Fig. 4 that the locking hook 6 is installed on the outside of both sides of the lifting arm 1, connected with the rotating shaft 5 through the pin shaft 7, and the two ends of the pin shaft 7 are used Bearing pin is fixed with retaining ring 11, and rotating shaft 5 two ends are fixed with rotating shaft retaining ring 11, and bumper 9 is positioned at pin shaft 7 middle parts. the

The working process of the utility model: in the state of complete unloading, when the telescopic arm 2 is retracted to the position, the groove-shaped bumper 9 on the telescopic arm 2 bumps into the pin 7 on the locking hook 6, driving the pin 7 to move, The movement of the pin shaft 7 drives the locking hook 6 to rotate around the rotating shaft 5. When the telescopic arm 2 is retracted to the position, the locking hook 6 disengages from the limit block 10, and the lifting arm 1 drives the telescopic arm 2 to rotate around the rotating arm 3. , to complete the disassembly task, and the action sequence of the whole assembly process is reversed. During the self-unloading operation, the telescopic arm 2 is in a fully stretched state, and at this moment, the locking hook 6 hooks the limit block 10 on the pivoting arm 3 under the tension of the spring 8, and drives the pivoting arm 3 to rotate together. the

The above embodiments of the utility model have been described in detail in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned embodiments. Make various changes below. the

Claims (4)

1. the self-contained whole tripper unloading with self-unloading of a torque arm device, comprise lift arm (1), telescopic boom (2), pivoted arm (3) and rear axle (4), lift arm (1) and pivoted arm (3) are all arranged on rear axle (4), and described lift arm (1) can rotate around rear axle (4), telescopic boom (2) is movably arranged in lift arm (1), described telescopic boom (2) can move back and forth in lift arm, it is characterized in that: on described lift arm (1), be provided with rotating shaft (5), locking bail (6) is movably arranged in rotating shaft (5), described locking bail (6) is (5) rotation around the shaft, on described locking bail (6), be provided with bearing pin (7), described bearing pin (7) be arranged in parallel with rotating shaft (5), between described lift arm (1) and locking bail (6), be provided with spring (8), one end of described spring (8) is arranged on lift arm (1), the other end of described spring (8) is arranged on locking bail (6), on described telescopic boom (2), be provided with collision block (9), on described pivoted arm (3), be provided with limiting stopper (10), described limiting stopper (10) mates setting mutually with locking bail (6).

2. the self-contained whole tripper unloading with self-unloading of a kind of torque arm device according to claim 1, it is characterized in that: the quantity of described locking bail (6) is two, two described locking bails (6) are symmetricly set on the both sides of lift arm (1), and two described locking bails (6) are all connected with rotating shaft (5) by bearing pin (7).

3. the self-contained whole tripper unloading with self-unloading of a kind of torque arm device according to claim 1 and 2, it is characterized in that: the two ends of described bearing pin (7) and rotating shaft (5) are provided with back-up ring (11), and described back-up ring (11) is used for fixing locking bail (6).

4. the self-contained whole tripper unloading with self-unloading of a kind of torque arm device according to claim 1 and 2, is characterized in that: described collision block (9) is grooved, and described collision block (9) is positioned at the middle part of bearing pin (7), is used for promoting bearing pin (7) mobile.

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