Special hoisting tool for crane maintenance

Abstract

The utility model relates to the technical field of hoisting equipment, and provides a special hoisting tool for travelling crane maintenance, which comprises a rack, a lifting mechanism, a lifting mechanism and a lifting mechanism, the chain block is connected to the upper end of the cantilever through a hook of the chain block; wherein a size-adjustable clamping area is arranged on the cross beam, so that the rack is fastened below a wing plate of H-shaped steel of the travelling crane; a lifting chain of the chain block can be led out from the interior of the rack through the lower part of the clamping area and is used for hoisting a mechanical part of the travelling crane and the driving motor to disassemble and assemble the travelling crane. Through the clamping area with the adjustable size, the rack can be quickly fastened below a wing plate of H-shaped steel of the travelling crane, and a hoisting point is changed by utilizing the principle of a chain block, so that a mechanical part and a driving motor of the travelling crane are hoisted to be disassembled and assembled under the conditions of small operation area and limited space; the problem that heavy objects are difficult to hoist in a narrow space is effectively solved, working hours are saved, and labor efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, in particular to a special hoisting tool for vehicle maintenance. Background Art

[0002] The crane not only has higher carrying capacity and operating efficiency, but also has more intelligent functions. It is widely used in the chemical industry, assembly enterprises, warehouses, docks and other places. It has become an indispensable lifting tool in the polysilicon industry. It plays an important role in reduction and cold hydrogenation production.

[0003] At present, due to the frequent use of the crane, its mechanical parts and drive motors need to be regularly maintained or overhauled. The following problems exist in the specific operation process:

[0004] 1. Because it is at a high place, it needs to build a temporary climbing frame and cooperate with multiple people, which consumes a lot of manpower and has low work efficiency;

[0005] 2. When dismantling and reinstalling the motor at high places, there are no stress points and fixed lifting points, and there are oblique pulling and twisting phenomena, which poses certain safety risks;

[0006] 3. During the process of dismantling and reinstalling the motor, manual cooperation is required to move the motor. Often, due to the small working area and limited space, personnel may suffer mechanical injuries, making the dismantling and reinstalling of the motor difficult, and even causing equipment damage during the dismantling and installation process. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a special lifting tool for crane maintenance to solve the problems of low efficiency in the maintenance of existing crane mechanical parts and drive motors, safety risks, mechanical injuries to personnel, and difficulty in disassembly and assembly due to small working area and limited space.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A special hoisting tool for vehicle maintenance, comprising:

[0010] A frame having a crossbeam and a cantilever connected to one end of the crossbeam and extending upward and outward in a curved shape; and

[0011] A hand chain hoist connected to the upper end of the cantilever through its hook;

[0012] Among them, a clamping area with adjustable size is provided on the crossbeam to fasten the frame under the wing plate of the H-shaped steel of the crane; the lifting chain of the hand hoist can be led out from the inside of the frame through the bottom of the clamping area, and is used to lift the mechanical part and drive motor of the crane for disassembly and assembly.

[0013] In one embodiment disclosed in the present application, the clamping area includes a left limit seat and a right limit seat with flush tops;

[0014] The left limit seat is fixedly arranged above one end of the cross beam connected to the cantilever, and the right limit seat is slidably connected above the other end of the cross beam;

[0015] The left limit seat and the right limit seat are both arranged on opposite sides thereof to be inclined to form left and right clamping grooves with the crossbeam as the bottom;

[0016] The area between the left card slot and the right card slot is a card connection area with an upper opening and an inner shape of an "eight" shape.

[0017] In one embodiment disclosed in the present application, the size adjustment range of the clamping area is 125 to 240 mm.

[0018] In one embodiment disclosed in the present application, the left limit seat is provided with a first screw threadedly connected thereto;

[0019] The head of the first screw is at the top, and the shaft thereof extends vertically downward into the left clamping groove, so as to tighten the wing plate of the H-shaped steel to realize the positioning of the left limit seat.

[0020] In one embodiment disclosed in the present application, a slide rail plate with a long hole is provided inside the other end of the crossbeam for supporting the right limit seat and providing a sliding travel track for it;

[0021] The right limit seat is provided with a second screw threadedly connected thereto;

[0022] The head of the second screw is at the bottom, and the shaft thereof vertically extends upward through the long hole of the slide rail plate and then extends into the right limit seat, so as to lock the right limit seat to the crossbeam.

[0023] In one embodiment disclosed in the present application, a third screw is provided on the side surface of the other end of the crossbeam and is threadedly connected to the crossbeam and is located above the slide rail plate;

[0024] The head of the third screw is outside, and the shaft thereof horizontally extends to the left to the inside of the cross beam, so as to tighten the right limiting seat to achieve its positioning.

[0025] In one embodiment disclosed in the present application, a plurality of pairs of pin holes are provided on the lower side of the middle portion of the crossbeam, and a latch is detachably connected between one pair of the pin holes, and a square wheel is mounted on the latch to guide the lifting chain to change the lifting point;

[0026] Another latch is fixedly connected to the lower end of the cantilever, and another square wheel is installed on the latch to support the lifting chain to disperse the force thereof.

[0027] In one embodiment disclosed in the present application, the outer side surface of the square wheel is provided with four first grooves along its axial direction and four second grooves along its rotation direction;

[0028] The first groove and the second groove are arranged at intervals from each other and are used for positioning and transmitting the lifting chain.

[0029] In one embodiment disclosed in the present application, an axle pin is provided inside the upper end of the cantilever;

[0030] The hook is hung on the shaft pin to support the hand chain hoist.

[0031] In one embodiment disclosed in the present application, at least two reinforcing plates are provided inside the cantilever;

[0032] The reinforcing plate is located between the latch pin at the lower end of the cantilever and the shaft pin at the upper end of the cantilever, and is used to improve the strength of the hoisting tooling.

[0033] Compared with the prior art, the beneficial effects of the utility model are:

[0034] 1. Through the adjustable clamping area, the frame can be quickly fastened under the wing plate of the H-shaped steel of the crane, and the lifting point can be changed by using the principle of the hand chain hoist, so that the mechanical part and drive motor of the crane can be lifted for disassembly and assembly under the conditions of small working area and limited space, which effectively solves the problem of difficulty in lifting heavy objects in a small space, and at the same time reduces the risk of mechanical damage and falling during crane maintenance operations, saves working hours, and improves labor efficiency.

[0035] 2. By utilizing the principle of hand chain hoist and switching two square wheels, heavy objects can be lifted in a small space, thereby realizing the maintenance of the crane mechanical part and the drive motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0038] Figure 2 It is a schematic diagram of the main cross-sectional structure of the utility model;

[0039] Figure 3 It is a schematic diagram of the three-dimensional structure of the slide rail plate;

[0040] Figure 4 It is a schematic diagram of the three-dimensional structure of the square wheel. DETAILED DESCRIPTION

[0041] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0046] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention.

[0047] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0048] See also Figure 1 to Figure 4 As shown, the utility model provides a special hoisting tool for vehicle maintenance, including:

[0049] The frame 100 has a crossbeam 110 and a cantilever 120 connected to one end of the crossbeam 110 and extending upward and outward (ie, away from the crossbeam 110) in a curved shape; and

[0050] A hand chain hoist 200 is connected to the upper end of the cantilever 120 through its hook 210;

[0051] Among them, a clamping area with adjustable size is provided on the crossbeam 110 to fasten the frame 100 under the wing plate (not shown in the figure) of the H-shaped steel of the crane; the lifting chain 220 of the hand winch 200 can be led out from the inside of the frame 100 through the bottom of the clamping area, and is used to lift the mechanical part and driving motor (not shown in the figure) of the crane for disassembly and assembly.

[0052] When in use, the size of the clamping area is manually adjusted according to the size of the H-shaped steel of the crane, so that it can adapt to the size of the wing plate of the H-shaped steel, so that the frame 100 is hoisted on the H-shaped steel in a clamping form and fastened into one body, and then the operator pulls the hand chain hoist 200 from the side ( Figure 1 and Figure 2The hand chain 230 (shown as a simplified structure) enables the lifting chain 220 to be raised or lowered under the condition of a small working area and limited space, so that the mechanical part of the crane and the drive motor can be hoisted for disassembly and assembly, and then maintenance or overhaul. That is to say, through the adjustable size clamping area, the frame 100 can be quickly fastened under the wing plate of the H-shaped steel of the crane, and the lifting point can be changed by using the principle of the hand winch 200, so that the mechanical part of the crane and the drive motor can be hoisted for disassembly and assembly under the condition of a small working area and limited space, which effectively solves the problem of difficulty in hoisting heavy objects in a small space, and at the same time reduces the risk of mechanical damage and falling during crane maintenance operations, saves working hours, and improves labor efficiency.

[0053] See also Figure 1 and Figure 2 As shown, the clamping area includes a left limit seat 130 and a right limit seat 140 with the tops flush. The left limit seat 130 is fixedly arranged above one end where the cross beam 110 is connected to the cantilever 120, and the right limit seat 140 is slidably connected above the other end of the cross beam 110. The left limit seat 130 and the right limit seat 140 are both inclined on the opposite side to form left and right clamping grooves with the cross beam 110 as the bottom. The area between the left clamping groove and the right clamping groove is the clamping area with an upper opening and an eight-shaped structure inside. Specifically, the right limit seat 140 slides along the length direction of the cross beam 110, and can move left and right with the right clamping groove, thereby adjusting the size of the clamping area so that it can adapt to the size of the wing plate of the H-shaped steel.

[0054] In this embodiment, the size adjustment range of the clamping area is 125-240 mm. That is, the hoisting tool is applicable to the maintenance work of the H-shaped steel wing plate with a size of 125-240 mm.

[0055] See also Figure 1 and Figure 2 As shown, the left limit seat 130 is provided with a first screw 131 threadedly connected thereto, the head of the first screw 131 is at the top, and the shaft thereof extends vertically downward into the left slot, and is used to tighten the wing plate of the H-shaped steel to achieve the positioning of the left limit seat 130 .

[0056] See also Figure 3 As shown, a slide rail plate 111 with a long hole for supporting the right limit seat 140 and providing a sliding travel track for it is provided inside the other end of the cross beam 110; a second screw 141 is provided on the right limit seat 140 and is threadedly connected thereto, the head of the second screw 141 is at the bottom, and the shaft of the second screw 141 vertically passes through the long hole of the slide rail plate 111 and then extends into the right limit seat 140, so as to lock the right limit seat 140 to the cross beam 110. When the size of the clamping area is adjusted to match the size of the wing plate of the H-shaped steel, the sliding of the right limit seat 140 can be limited by rotating the second screw 141, thereby locking it to the cross beam 110.

[0057] See also Figure 1 and Figure 2 As shown, a third screw 112 is provided on the side of the other end of the beam 110 and is threadedly connected to it and located above the slide rail plate 111. The head of the third screw 112 is outside and its shaft extends horizontally to the left to the inside of the beam 110, which is used to tighten the right limit seat 140 to achieve its positioning.

[0058] There are multiple pairs (only three pairs are shown in the figure) of pin holes 113 on the lower middle part of the crossbeam 110, and a latch 114 is detachably connected between one pair of the pin holes 113, and a square wheel 150 is installed on the latch 114 to guide the lifting chain 220 to change the lifting point; another latch 114 is fixedly connected to the lower end of the cantilever 120 (the connection between the crossbeam 110 and the cantilever 120), and another square wheel 150 is installed on the latch 114 to support the lifting chain 220 to disperse its force. The hand chain hoist 200 is hung on the upper end of the cantilever 120 through its hook 210, and the lifting chain 220 passes through the square wheel 150 at the lower end of the cantilever 120 and the pin hole 113 in turn to lift the heavy object; according to the actual situation, the position of the latch 114 is adjusted between the multiple pairs of pin holes 113, so that a reasonable lifting point can be selected to lift the heavy object. That is to say, by utilizing the principle of the hand chain hoist 200 and by switching the two square wheels 150, heavy objects can be lifted in a narrow space, thereby realizing the maintenance of the crane mechanical part and the drive motor.

[0059] See also Figure 4 As shown, the outer side surface of the square wheel 150 is provided with four first grooves 151 along its axial direction and four second grooves 152 along its rotation direction. The first grooves 151 and the second grooves 152 are arranged at intervals from each other and are used for the positioning and transmission of the lifting chain 220.

[0060] An axle pin 121 is provided inside the upper end of the cantilever 120 , and a hook 210 is hung on the axle pin 121 to support the hand chain hoist 200 .

[0061] At least two reinforcing plates 122 are provided inside the cantilever 120 . The reinforcing plates 122 are located between the latch pin 114 at the lower end of the cantilever 120 and the shaft pin 121 at the upper end of the cantilever 120 , and are used to improve the strength of the hoisting tooling.

[0062] The above embodiments are only preferred embodiments of the present utility model and are not limitations on the technical solutions of the present utility model. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present utility model.

Claims

1. A special hoisting tool for vehicle maintenance, characterized in that: include: A frame having a crossbeam and a cantilever connected to one end of the crossbeam and extending upward and outward in a curved form; and A hand chain hoist connected to the upper end of the cantilever through its hook; Among them, a clamping area with adjustable size is provided on the crossbeam to fasten the frame under the wing plate of the H-shaped steel of the crane; the lifting chain of the hand hoist can be led out from the inside of the frame through the bottom of the clamping area, and is used to lift the mechanical part and drive motor of the crane for disassembly and assembly.

2. The special hoisting tool for vehicle maintenance according to claim 1 is characterized in that: The clamping area includes a left limit seat and a right limit seat with flush tops; The left limit seat is fixedly arranged above one end of the cross beam connected to the cantilever, and the right limit seat is slidably connected above the other end of the cross beam; The left limit seat and the right limit seat are both arranged on opposite sides thereof to be inclined to form left and right clamping grooves with the crossbeam as the bottom; The area between the left card slot and the right card slot is a card connection area with an upper opening and an inner shape of an "eight" shape.

3. The special hoisting tool for vehicle maintenance according to claim 2 is characterized in that: The size adjustment range of the clamping area is 125 to 240 mm.

4. The special hoisting tool for vehicle maintenance according to claim 2 or 3, characterized in that: The left limit seat is provided with a first screw threadedly connected thereto; The head of the first screw is at the top, and the shaft thereof extends vertically downward into the left clamping groove, so as to tighten the wing plate of the H-shaped steel to realize the positioning of the left limit seat.

5. The special hoisting tool for vehicle maintenance according to claim 4 is characterized in that: A slide rail plate with a long hole is provided inside the other end of the crossbeam for supporting the right limit seat and providing a sliding travel track for it; The right limit seat is provided with a second screw threadedly connected thereto; The head of the second screw is at the bottom, and the shaft thereof vertically extends upward through the long hole of the slide rail plate and then extends into the right limit seat, so as to lock the right limit seat to the crossbeam.

6. The special hoisting tool for vehicle maintenance according to claim 5 is characterized in that: A third screw is provided on the side surface of the other end of the crossbeam and is threadedly connected to the crossbeam and is located above the slide rail plate; The head of the third screw is outside, and the shaft thereof horizontally extends to the left to the inside of the cross beam, so as to tighten the right limiting seat to achieve its positioning.

7. The special hoisting tool for vehicle maintenance according to claim 1 or 6, characterized in that: A plurality of pairs of pin holes are provided on the lower side of the middle part of the crossbeam, and a latch is detachably connected between one pair of the pin holes, and a square wheel is installed on the latch to guide the lifting chain to change the lifting point; Another latch is fixedly connected to the lower end of the cantilever, and another square wheel is installed on the latch to support the lifting chain to disperse the force thereof.

8. The special hoisting tool for vehicle maintenance according to claim 7 is characterized in that: The outer side surface of the square wheel is provided with four first grooves along its axial direction and four second grooves along its rotation direction; The first groove and the second groove are arranged at intervals from each other and are used for positioning and transmitting the lifting chain.

9. The special hoisting tool for vehicle maintenance according to claim 7 is characterized in that: An axle pin is provided inside the upper end of the cantilever; The hook is hung on the shaft pin to support the hand chain hoist.

10. The special hoisting tool for vehicle maintenance according to claim 9 is characterized in that: At least two reinforcement plates are provided inside the cantilever; The reinforcing plate is located between the latch pin at the lower end of the cantilever and the shaft pin at the upper end of the cantilever, and is used to improve the strength of the hoisting tooling.

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