Counterweight bolt dismounting wrench lifting tool

Abstract

The utility model discloses a counterweight bolt dismounting wrench lifting tool, including wrench adjusting device, fixing device and elevating gear, the wrench adjusting device includes the clamping groove device and rotating mechanism, and the clamping groove device is used for placing and lifting wrench, the rotating mechanism is installed at one end of clamping groove device, is used for adjusting the angle of wrench, elevating gear is installed on fixing device, and is connected with clamping groove device below, is used for adjusting the height of clamping groove device, and then adjusts the height of wrench, fixing device is used for supporting wrench adjusting device and elevating gear. This counterweight bolt dismounting wrench lifting tool changes the working mode of excavator counterweight bolt dismounting by originally two people cooperation use traveling crane to lift the wrench into the working mode of single person using tool to lift the wrench, reduces the security risk of wrench drop, and reduces personnel configuration, improves assembly efficiency, reduces manual cost.

Description

Technical Field

[0001] This utility model relates to the field of excavator assembly technology, and in particular to a counterweight bolt removal wrench lifting fixture. Background Technology

[0002] Currently, counterweight bolts on medium-sized excavators are often removed using a torque wrench. The torque wrench needs to be lifted steadily using a crane and slings. Then, one person holds the end of the wrench to keep it horizontal while adjusting the height of the wrench by controlling the crane hook. Another person then pulls the head of the wrench to place the socket into the bolt head. After that, both people apply force to the end of the wrench while maintaining its balance to remove the counterweight bolt. The remaining bolts are then removed using the same method.

[0003] The existing technical solutions have the following problems: 1. During the disassembly of the counterweight bolts, the wrench needs to be lifted by a crane and slings and kept in balance at all times. There is no limit between the wrench and the slings, which makes it easy to fall off and cause safety accidents; 2. At least two people are required to cooperate when disassembling the counterweight bolts, and the crane needs to be slowly controlled to adjust the height of the wrench. This requires a large number of people, poses safety hazards, is difficult to operate and inefficient. Utility Model Content

[0004] Objective: In order to overcome the shortcomings of the existing technology, this utility model provides a counterweight bolt disassembly wrench lifting fixture, which improves safety and assembly efficiency and reduces labor costs.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] This utility model provides a counterweight bolt removal wrench lifting fixture, including a wrench adjustment device, a fixing device and a lifting device; The wrench adjustment device includes a slot device and a rotating mechanism. The slot device is used to place and support the wrench; the rotating mechanism is installed at one end of the slot device and is used to adjust the angle of the wrench. The lifting device is installed on the fixed device and connected to the lower part of the slot device, and is used to adjust the height of the slot device, thereby adjusting the height of the wrench. The fixing device is used to support the wrench adjustment device and the lifting device.

[0007] The wrench adjustment device keeps the wrench stable in a horizontal position throughout the disassembly process; the rotating mechanism makes it easier for the wrench socket to fit into the head of the counterweight bolt; the lifting device adjusts the wrench height so that the wrench can be closer to the counterweight bolt during use.

[0008] In some embodiments, the slot device includes a slot and a plurality of arc-shaped plates. The slot includes a base plate and two side plates for accommodating a wrench. The two ends of the arc-shaped plates are respectively mounted on the two side plates of the slot, and the plurality of arc-shaped plates are installed in parallel between each other for fixing and pressing the wrench.

[0009] In some embodiments, the lifting device includes a lifting mechanism and a pressurizing mechanism, wherein the pressurizing mechanism is used to lift the card slot device by the lifting mechanism.

[0010] In some embodiments, the pressurizing mechanism is a foot-operated pressurizing mechanism.

[0011] In some embodiments, the lifting mechanism is a hydraulic lifting mechanism.

[0012] In some embodiments, the lifting device further includes a pressure relief screw, which is installed on the hydraulic lifting mechanism and is used to control the hydraulic oil to flow back to the oil reservoir of the hydraulic lifting mechanism to realize the descent of the slot device.

[0013] In some embodiments, the pressure relief screw is a Torx-shaped pressure relief screw.

[0014] In some embodiments, the fixing device includes a base and multiple fixing legs; The lifting mechanism is mounted on the base and is fixed in all four directions by fixed support legs; The fixed support leg is inclined, with one end connected to the lifting mechanism and the other end connected to the base, forming a triangular structure with the fixed support leg, the lifting mechanism and the base.

[0015] In some embodiments, the base is equipped with a plurality of caster wheels at its bottom for moving the counterweight bolt removal wrench lifting tool.

[0016] The caster wheel mechanism allows the tooling to move freely on the ground and enables the application of force to the wrench in any direction to disassemble bolts, thus improving the tooling's convenience.

[0017] Beneficial effects: The counterweight bolt removal wrench lifting fixture provided by this utility model changes the original working mode of removing the counterweight bolts of excavators from requiring two people to use a crane to lift the wrench to a working mode of one person using the fixture to lift the wrench. This reduces the safety risk of the wrench falling off, reduces personnel requirements, improves assembly efficiency, and reduces labor costs. It is suitable for removing counterweight bolts from excavators, especially medium-sized excavators. The design of the slot and multiple arc plates ensures that the wrench remains stable in a horizontal position throughout the disassembly process. The rotating mechanism makes it easier for the wrench sleeve to be nested in the bolt head. A lifting device is provided below the slot device to adjust the height of the wrench so that it is close to the bolt. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the counterweight bolt removal wrench lifting fixture in an embodiment of this utility model.

[0020] In the diagram: 1. Slot device, 2. Arc plate, 3. Rotating mechanism, 4. Hydraulic lifting mechanism, 5. Torx-shaped pressure relief screw, 6. Foot-operated pressurizing mechanism, 7. Fixed support leg, 8. Base, 9. Caster wheel mechanism. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use.

[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may include different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0023] Example 1:

[0024] This embodiment provides a counterweight bolt removal wrench lifting fixture; further, it provides a medium-sized excavator counterweight bolt removal wrench lifting fixture, such as... Figure 1 As shown, it includes: The wrench adjustment device includes a slot device 1 and a rotating mechanism 3; the slot device includes a slot and multiple arc plates 2, the slot includes a base plate and two side plates, and the wrench is placed in the slot; the two ends of the arc plates 2 are respectively installed on the two side plates of the slot, and the multiple arc plates 2 are installed in parallel between each other to fix and press the wrench; the rotating mechanism 3 is installed at one end of the slot device 1 to adjust the angle of the wrench; The lifting device, installed below the slot device 1, includes a hydraulic lifting mechanism 4, a foot-operated pressurizing mechanism 6, and a plum blossom pressure relief screw 5. The plum blossom pressure relief screw 5 is installed on the hydraulic lifting mechanism 4 and is used to control the hydraulic oil to flow back to the oil storage tank of the hydraulic lifting mechanism 4 to realize the lowering of the lifting mechanism. The foot-operated pressurizing mechanism 6 is used to realize the lifting of the lifting mechanism. A fixing device for supporting the adjustment and lifting devices includes a base 8, multiple fixed legs 7, and multiple caster wheel mechanisms 9. The lifting device is mounted on the base 8 and is fixed in all directions by the fixed legs 7. The fixed legs 7 are inclined, with one end connected to the hydraulic lifting mechanism 4 and the other end connected to the base 8. The fixed legs 7, the lifting mechanism 4, and the base 8 form a triangular structure. The caster wheel mechanisms 9 are installed at the bottom of the base 8 and are used to move the counterweight bolt removal wrench lifting tool as a whole.

[0025] Example 2:

[0026] This embodiment provides a method for using the counterweight bolt removal wrench lifting fixture as described in Embodiment 1, including: When removing the counterweight bolts of the excavator, lift the wrench onto the slot device 1 and use the matching bolts to press the arc plate 2 in place to ensure that the wrench is placed stably during use. The counterweight bolt removal wrench lifting tool and the wrench are pushed to the bottom of the counterweight bolt. The hydraulic lifting mechanism 4 is extended by the foot-operated pressure mechanism 6, lifting the slot device 1 and the wrench, so that the wrench sleeve is close to the counterweight bolt. At the same time, the auxiliary sleeve is nested on the bolt head by the rotating mechanism 3 on one side of the slot. Apply force from the tail of the wrench and use the universal wheel mechanism 9 to disassemble the counterweight bolt; After disassembly, rotate the counterweight bolt and use the wrench to lift the tooling with the Torx-shaped pressure relief screw 5, causing the hydraulic lifting mechanism 4 to retract, lowering the slot device 1 and the height of the wrench until the wrench sleeve disengages from the counterweight bolt head.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to explain the relative positional relationship and movement between the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. These terms are used only for the convenience of describing this utility model and for simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A lifting fixture for removing counterweight bolts with a wrench, characterized in that, Includes a wrench adjustment device, a fixing device, and a lifting device; The wrench adjustment device includes a slot device and a rotating mechanism. The slot device is used to place and support the wrench; the rotating mechanism is installed at one end of the slot device and is used to adjust the angle of the wrench. The lifting device is installed on the fixed device and connected to the lower part of the slot device, and is used to adjust the height of the slot device, thereby adjusting the height of the wrench. The fixing device is used to support the wrench adjustment device and the lifting device.

2. The counterweight bolt removal wrench lifting fixture according to claim 1, characterized in that, The slot device includes a slot and multiple arc-shaped plates. The slot includes a base plate and two side plates for accommodating a wrench. The two ends of the arc-shaped plates are respectively installed on the two side plates of the slot. The multiple arc-shaped plates are installed in parallel between each other for fixing and pressing the wrench.

3. The counterweight bolt removal wrench lifting fixture according to claim 1, characterized in that, The lifting device includes a lifting mechanism and a pressurizing mechanism, wherein the pressurizing mechanism is used to lift the slot device by the lifting mechanism.

4. The counterweight bolt removal wrench lifting fixture according to claim 3, characterized in that, The pressurization mechanism is a foot-operated pressurization mechanism.

5. The counterweight bolt removal wrench lifting fixture according to claim 3, characterized in that, The lifting mechanism is a hydraulic lifting mechanism.

6. The counterweight bolt removal wrench lifting fixture according to claim 5, characterized in that, The lifting device also includes a pressure relief screw, which is installed on the hydraulic lifting mechanism and is used to control the hydraulic oil to flow back to the oil storage tank of the hydraulic lifting mechanism, thereby enabling the slot device to descend.

7. The counterweight bolt removal wrench lifting fixture according to claim 6, characterized in that, The pressure relief screw is a Torx-shaped pressure relief screw.

8. The counterweight bolt removal wrench lifting fixture according to claim 3, characterized in that, The fixing device includes a base and multiple fixing legs; The lifting mechanism is mounted on the base and is fixed in all four directions by fixed support legs; The fixed support leg is inclined, with one end connected to the lifting mechanism and the other end connected to the base, forming a triangular structure with the fixed support leg, the lifting mechanism and the base.

9. The counterweight bolt removal wrench lifting fixture according to claim 8, characterized in that, The base is equipped with multiple caster wheels for moving the counterweight bolt removal wrench lifting tool.

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