Novel grabbing machine arm

Abstract

The utility model relates to a novel grabbing machine arm which comprises a mechanical claw, a swing arm, a suspension arm and a rotating arm, the fixed end of the rotating arm is vertically fixed on a frame, the rotating end of the rotating arm is hinged with the fixed end of the suspension arm, the lifting end of the suspension arm is hinged with the fixed end of the swing arm, and the swing end of the swing arm is hinged with the fixed end of the mechanical claw. The upper portion of the swing end of the swing arm is connected with the fixed end of the mechanical claw through a hydraulic rod, the lower portion of the fixed end of the rotating arm is connected with the lower portion of the lifting end of the suspension arm through a hydraulic rod, the lower portion of the fixed end of the suspension arm is connected with the rotating end of the rotating arm through two hydraulic rods, and the two hydraulic rods are located on the two sides of the rotating arm respectively. The action of claw stretching of the swing arm is fast and powerful, the action of claw retracting of the swing arm effectively utilizes the pressure for grabbing heavy objects, lifting can be more powerful and efficient by controlling lifting of the suspension arm through the double hydraulic rods, and the grabbing and hoisting efficiency of the grabbing machine is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to grab equipment field especially relates to a novel grab arm. BACKGROUND

[0002] The grab is widely used in production, especially the loading and unloading transportation of sugarcane and timber, the existing grab has two problems, the first problem is that the hydraulic rod between the boom and swing arm is installed on the top, the claw action of swing arm is pulled by the contraction of hydraulic rod, and the contraction of hydraulic rod is a pressure relief action, so the action is slow, the claw action of swing arm is pulled by the pushing of hydraulic rod, since the mechanical claw is heavy when clawing, the efficiency of pushing of hydraulic rod is also lower than that when the machine is empty; the second problem is that the boom is controlled by single hydraulic rod and rotating arm, generally, the same pressure model is used for the above two hydraulic rods for the convenience of control, since the hydraulic rod on the rotating arm needs to support the boom, the efficiency of lifting mechanical claw is low. SUMMARY

[0003] The utility model discloses a kind of efficient novel grab arms, to solve the problem of low efficiency of existing grab.

[0004] The technical scheme adopted by the utility model is as follows: a novel grab arm, including mechanical claw, swing arm, boom and rotating arm, the fixed end of rotating arm is vertically fixed on the frame, the rotating end of rotating arm is hinged with the fixed end of boom, the lifting end of boom is hinged with the fixed end of swing arm, the swing end of swing arm is hinged with the fixed end of mechanical claw, the swing end of swing arm is connected with the fixed end of mechanical claw through hydraulic rod above, the lower side of the fixed end of boom is connected with the lower side of the lifting end of rotating arm through hydraulic rod, the lower side of the fixed end of boom is connected with the rotating end of rotating arm through two hydraulic rods, and the two hydraulic rods are located on the two sides of rotating arm.

[0005] The further technical scheme of the utility model is as follows: the fixed end of swing arm is fixed with first mounting sleeve, the first mounting sleeve is sleeved and locked on the fixed end of swing arm, the tail of the lower side of first mounting sleeve has hinged hole, the head of the lower side of first mounting sleeve has first mounting bracket, the first mounting bracket includes two installation surfaces with shaft holes, the movable end of hydraulic rod is provided with shaft hole, pin shaft is inserted into first mounting bracket with the movable end of hydraulic rod, and nut locks pin shaft.

[0006] The further technical scheme of the utility model is as follows: the lifting end of boom is fixed with second mounting sleeve, the second mounting sleeve is sleeved and locked on the lifting end of boom, the head of the lower side of second mounting sleeve has hinged hole, the tail of the lower side of second mounting sleeve has second mounting bracket, the second mounting bracket includes two installation surfaces with shaft holes, the fixed end of hydraulic rod is provided with shaft hole, pin shaft is inserted into second mounting bracket with the fixed end of hydraulic rod, and nut locks pin shaft.

[0007] The further technical scheme of the utility model is: the fixed end of the rotary arm is fixed with a fourth mounting sleeve, the fourth mounting sleeve is sleeved and locked on the fixed end of the rotary arm, the tail part below the fourth mounting sleeve has a hinged hole, the head part below the fourth mounting sleeve has a fourth mounting frame, the fourth mounting frame comprises two mounting surfaces with shaft holes, the movable end of the hydraulic rod has a shaft hole, the movable end of the two hydraulic rods is respectively inserted into the two sides of the fourth mounting frame through a pin shaft, and the pin shaft is locked through nuts on the outer sides of the two mounting surfaces; the lifting and lowering end of the boom is fixed with a fifth mounting sleeve, the fifth mounting sleeve is sleeved and locked on the lifting and lowering end of the boom, the head part below the fifth mounting sleeve has a hinged hole, the tail part below the fifth mounting sleeve has a fifth mounting frame, the fifth mounting frame comprises two mounting surfaces with shaft holes, the fixed end of the hydraulic rod has a shaft hole, the fixed end of the two hydraulic rods is inserted into the two sides of the fifth mounting frame through a pin shaft, and the pin shaft is locked through nuts on the outer sides of the two mounting surfaces. The tail part below the fourth mounting sleeve has a hinged hole and is hinged with the head part below the fifth mounting sleeve.

[0008] The further technical scheme of the utility model is: the fixed end of the rotary arm is fixed with a fourth mounting sleeve, the fourth mounting sleeve is sleeved and locked on the fixed end of the rotary arm, the tail part below the fourth mounting sleeve has a hinged hole, the head part below the fourth mounting sleeve has a fourth mounting frame, the fourth mounting frame comprises two mounting surfaces with shaft holes, the movable end of the hydraulic rod has a shaft hole, the movable end of the two hydraulic rods is respectively inserted into the two sides of the fourth mounting frame through a pin shaft, and the pin shaft is locked through nuts on the outer sides of the two mounting surfaces; the lifting and lowering end of the boom is fixed with a fifth mounting sleeve, the fifth mounting sleeve is sleeved and locked on the lifting and lowering end of the boom, the head part below the fifth mounting sleeve has a hinged hole, the tail part below the fifth mounting sleeve has a fifth mounting frame, the fifth mounting frame comprises two mounting surfaces with shaft holes, the fixed end of the hydraulic rod has a shaft hole, the fixed end of the two hydraulic rods is inserted into the two sides of the fifth mounting frame through a pin shaft, and the pin shaft is locked through nuts on the outer sides of the two mounting surfaces. The tail part below the fourth mounting sleeve has a hinged hole and is hinged with the head part below the fifth mounting sleeve.

[0009] The utility model discloses the beneficial effect is: because adopting above -mentioned technical scheme, the novel grab machine arm of the utility model through the hydraulic rod of control swing arm installation below swing arm, swing arm goes out and stretches the action of claw and is powerful, swing arm comes back and gathers the action of claw effectively utilizes the pressure of heavy object of grabbing, adopts the lifting of double hydraulic rod control boom and can make the lifting more powerful and efficient, makes the grab machine and hoisting efficiency higher. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the structural schematic diagram of the novel grab machine arm of embodiment one;

[0011] Figure 2 It is the structural schematic diagram of the novel grab machine arm of embodiment two;

[0012] Figure 3 It is Figure 1 The structure schematic diagram of the partial enlargement of A of the utility model;

[0013] Figure 4 It is Figure 1a structure schematic view of a part B of the device is enlarged locally;

[0014] Figure 5 is Figure 2 a structure schematic view of a part C of the device is enlarged locally. DETAILED DESCRIPTION

[0015] The utility model will be further explained in connection with the drawings and specific embodiments.

[0016] Embodiment one:

[0017] As Figure 1 shown in a novel grab arm, including mechanical claw 4, swing arm 3, boom 2, rotating arm 1 and multiple hydraulic rods 5, the fixed end of rotating arm is vertically fixed on the frame, the rotating end of rotating arm is hinged with the fixed end of boom, the lifting end of boom is hinged with the fixed end of swing arm, the swing end of swing arm is hinged with the fixed end of mechanical claw, the swing end of swing arm is connected with the fixed end of mechanical claw through hydraulic rod above, the lower side of the fixed end of rotating arm is connected with the lower side of the lifting end of boom through hydraulic rod, the lower side of the fixed end of boom is connected with the rotating end of rotating arm through two hydraulic rods, two hydraulic rods are located at both sides of rotating arm, when one of the two hydraulic rods that control the lifting of boom on rotating arm carries out jacking action, the other carries out contraction action, and the two can be used in series to achieve this effect, or circuit control can be used to achieve this effect.

[0018] As Figure 1 and 3 shown, the fixed end of swing arm 3 is fixed with first mounting sleeve 6, the first mounting sleeve is sleeved and locked on the fixed end of swing arm, the tail of the lower side of the first mounting sleeve has a hinge hole, the head of the lower side of the first mounting sleeve has first mounting frame, the first mounting frame comprises two mounting surfaces with shaft holes, the movable end of hydraulic rod 5 is provided with a shaft hole, the movable end of hydraulic rod is inserted into the first mounting frame through a pin shaft, and the pin shaft is locked by a nut outside the two mounting surfaces.

[0019] As Figure 1 and 3 shown, the lifting end of boom 2 is fixed with second mounting sleeve 7, the second mounting sleeve is sleeved and locked on the lifting end of boom, the head of the lower side of the second mounting sleeve has a hinge hole, the tail of the lower side of the second mounting sleeve has second mounting frame, the second mounting frame comprises two mounting surfaces with shaft holes, the fixed end of hydraulic rod 5 is provided with a shaft hole, the fixed end of hydraulic rod is inserted into the second mounting frame through a pin shaft, and the pin shaft is locked by a nut outside the two mounting surfaces. The tail of the lower side of the first mounting sleeve has a hinge hole, and the head of the lower side of the second mounting sleeve has a hinge hole.

[0020] As Figure 4As shown, a third mounting sleeve 8 is fixed to the fixed end of the boom 2. The third mounting sleeve is fitted and locked onto the fixed end of the boom. Below the third mounting sleeve is a third mounting bracket. The third mounting bracket includes two sets of symmetrical mounting surfaces with shaft holes. The movable end of the hydraulic rod 5 has a shaft hole. A pin passes through the movable end of the hydraulic rod into the third mounting bracket. The pin is then locked with nuts on the outside of the two mounting surfaces. The fixed end of the hydraulic rod is fixed to the rotating end of the rotating arm. The third mounting bracket also includes a hinge hole located in the middle of the two sets of mounting surfaces. The head of the rotating end of the rotating arm 1 is mounted on the hinge hole.

[0021] Example 2:

[0022] like Figure 2 and 5 As shown, the technical solutions of Embodiment 2 and Embodiment 1 are basically the same, except that: a fourth mounting sleeve 9 is fixed to the fixed end of the swing arm 3. The fourth mounting sleeve is fitted and locked onto the fixed end of the swing arm. The lower end of the fourth mounting sleeve has a hinge hole, and the lower head of the fourth mounting sleeve has a fourth mounting bracket. The fourth mounting bracket includes two mounting surfaces with shaft holes. The movable end of the hydraulic rod 5 has a shaft hole. A pin passes through the movable ends of the two hydraulic rods on both sides of the fourth mounting bracket, and then the pin is locked with a nut on the outside of the two mounting surfaces. A fifth mounting sleeve 10 is fixed to the lifting end of the boom 2. The fifth mounting sleeve is fitted and locked onto the lifting end of the boom. The lower head of the fifth mounting sleeve has a hinge hole, and the lower tail of the fifth mounting sleeve has a fifth mounting bracket. The fifth mounting bracket includes two mounting surfaces with shaft holes. The fixed end of the hydraulic rod has a shaft hole. A pin passes through the fixed ends of the two hydraulic rods on both sides of the fifth mounting bracket, and then the pin is locked with a nut on the outside of the two mounting surfaces. The lower tail of the fourth mounting sleeve has a hinge hole that is hinged to the lower head of the fifth mounting sleeve.

[0023] The pin may have a positioning groove, in which the hydraulic rod is installed.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new type of grab arm, comprising a mechanical claw, a swing arm, a lifting arm and a rotating arm, the fixed end of the rotating arm is vertically fixed on the frame, the rotating end of the rotating arm is hinged with the fixed end of the lifting arm, the lifting end of the lifting arm is hinged with the fixed end of the swing arm, the swing end of the swing arm is hinged with the fixed end of the mechanical claw, and the swing end of the swing arm is connected with the fixed end of the mechanical claw through a hydraulic rod above the swing end, characterized in that: The lower part of the fixed end of the rotating arm is connected with the lower part of the lifting end of the cantilever arm by hydraulic rods, and the lower part of the fixed end of the cantilever arm is connected with the rotating end of the rotating arm by two hydraulic rods, which are respectively arranged on the two sides of the rotating arm. ​ 2. The novel grapple arm of claim 1, wherein: The fixed end of the swing arm is fixed with a first mounting sleeve, which is sleeved and locked on the fixed end of the swing arm, the tail of the lower part of the first mounting sleeve is provided with a hinged hole, the head of the lower part of the first mounting sleeve is provided with a first mounting frame, the first mounting frame comprises two mounting surfaces provided with shaft holes, the movable end of the hydraulic rod is provided with a shaft hole, a pin shaft is inserted into the first mounting frame, and a nut is used to lock the pin shaft.

3. The novel grapple arm of claim 2, wherein: The lifting end of the cantilever arm is fixed with a second mounting sleeve, which is sleeved and locked on the lifting end of the cantilever arm, the head of the lower part of the second mounting sleeve is provided with a hinged hole, the tail of the lower part of the second mounting sleeve is provided with a second mounting frame, the second mounting frame comprises two mounting surfaces provided with shaft holes, the fixed end of the hydraulic rod is provided with a shaft hole, a pin shaft is inserted into the second mounting frame, and a nut is used to lock the pin shaft.

4. The novel grapple arm of claim 1, wherein: The fixed end of the swing arm is fixed with a fourth mounting sleeve, which is sleeved and locked on the fixed end of the swing arm, the tail of the lower part of the fourth mounting sleeve is provided with a hinged hole, the head of the lower part of the fourth mounting sleeve is provided with a fourth mounting frame, the fourth mounting frame comprises two mounting surfaces provided with shaft holes, the movable end of the hydraulic rod is provided with a shaft hole, a pin shaft is inserted into the fourth mounting frame on the two sides of the two hydraulic rods, and the outer sides of the two mounting surfaces are locked by nuts; the lifting end of the cantilever arm is fixed with a fifth mounting sleeve, which is sleeved and locked on the lifting end of the cantilever arm, the head of the lower part of the fifth mounting sleeve is provided with a hinged hole, the tail of the lower part of the fifth mounting sleeve is provided with a fifth mounting frame, the fifth mounting frame comprises two mounting surfaces provided with shaft holes, the fixed end of the hydraulic rod is provided with a shaft hole, a pin shaft is inserted into the fifth mounting frame on the two sides of the two hydraulic rods, and the outer sides of the two mounting surfaces are locked by nuts, the tail of the lower part of the fourth mounting sleeve is hinged with the head of the lower part of the fifth mounting sleeve.

5. The novel grapple arm according to any one of claims 1-4, characterized in that: The fixed end of the cantilever arm is fixed with a third mounting sleeve, which is sleeved and locked on the fixed end of the cantilever arm, the lower part of the third mounting sleeve is provided with a third mounting frame, the third mounting frame comprises two groups of symmetrical mounting surfaces provided with shaft holes, the movable end of the hydraulic rod is provided with a shaft hole, a pin shaft is inserted into the third mounting frame, and the outer sides of the two mounting surfaces are locked by nuts, the fixed end of the hydraulic rod is fixed on the rotating end of the rotating arm, the third mounting frame further comprises a hinged hole located at the middle position of the two groups of mounting surfaces, and the head of the rotating end of the rotating arm is mounted on the hinged hole.

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