Movable hoisting device for special vehicle maintenance field operation

Abstract

The utility model provides a movable hoisting device for special vehicle maintenance field operation. The movable hoisting device comprises a base assembly, a suspension arm assembly, a hydraulic cylinder, a lifting hook, a balancing weight and a fixing lug. The lifting device is simple in structure, convenient to operate and move and wide in applicability, the length of the lifting arm, the type of the lifting hook and the like can be adjusted according to actual use requirements so as to meet different lifting requirements, and the problems that in previous field operation, due to the fact that moving parts such as a driving wheel and an inducer are heavy, installation and maintenance are difficult, and manual operation intensity is large are solved. The device can be used for assisting workers to complete maintenance and installation of heavy parts, the working intensity of the workers is relieved, the installation quality is improved, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of field operation hoisting technology, and specifically relates to a movable hoisting device for field operation of special vehicle maintenance. BACKGROUND

[0002] When the driving wheel, the guide wheel and the side reducer of the special vehicle are installed on the vehicle, the to-be-installed components need to be lifted, the component posture needs to be adjusted, and the components need to be matched with the installation position of the vehicle. However, due to the heavy weight and large volume of the driving wheel, the guide wheel and other moving components, it is difficult to lift the heavy components by manpower alone.

[0003] When the operation is performed in the factory building, the crane is used to lift the heavy components and adjust the installation posture. However, when the operation is performed in the field or in a place without a crane, the heavy components need to be carried and lifted by manpower to complete the installation on the vehicle. The current crane operation mode has high requirements for the site facilities. When the operation is performed in the field or in a place without a crane, the heavy components need to be carried and lifted by manpower, which increases the labor intensity of the personnel, reduces the operation efficiency, and cannot guarantee the installation quality. CONTENT OF THE UTILITY MODEL

[0004] (I) Technical problem to be solved

[0005] The utility model provides a movable hoisting device for field operation of special vehicle maintenance to solve the technical problem that it is difficult to install the heavy and heavy components on the vehicle and the labor intensity of the personnel is high when the special vehicle is maintained in the field.

[0006] (II) Technical scheme

[0007] In order to solve the above technical problem, the utility model provides a movable hoisting device for field operation of special vehicle maintenance, which comprises a base assembly, a lifting arm assembly, a hydraulic cylinder, a lifting hook, a counterweight and a fixing lug. The base assembly is used for the overall support and fixation of the movable hoisting device. The length-adjustable lifting arm assembly is installed on the base assembly. Two fixing lugs are vertically aligned and installed on the base assembly and the lifting arm assembly, and are used for installing the hydraulic cylinder. The two ends of the hydraulic cylinder are fixed on the two fixing lugs, and serve as the main power source of the movable hoisting device. The lifting hook is suspended at the front end of the lifting arm assembly, and is used for lifting heavy objects. The counterweight is placed on the base assembly, and is used for ensuring the stability of the movable hoisting device.

[0008] Further, the two fixing lugs are vertically aligned and welded on the base assembly and the lifting arm assembly.

[0009] Further, the two ends of the hydraulic cylinder are fixed on the two fixing lugs by bolts, washers and nuts.

[0010] Further, the hydraulic cylinder is a manual double-ear type hydraulic cylinder.

[0011] Further, the base assembly comprises a plurality of bottom beams, universal wheels, longitudinal beams and a connecting groove; the plurality of bottom beams are staggered and welded to form a frame structure, and the plurality of universal wheels are respectively arranged at the bottom of the plurality of bottom beams; the two longitudinal beams are fixed in a herringbone shape on the two bottom beams, and the connecting groove is arranged on one of the two longitudinal beams; the lifting arm assembly comprises a fixed lifting arm and an extension arm, a plurality of sets of equidistant adjusting holes are arranged on the fixed lifting arm and the extension arm respectively, the extension arm is fixed on the fixed lifting arm by bolts, washers and nuts through the adjusting holes, and the fixed end of the fixed lifting arm is arranged on the connecting groove of the base assembly by a pin shaft and a split pin.

[0012] Further, the bottom beam and the plurality of longitudinal beams are square steel pipes.

[0013] Further, the lifting hook is hung at the front end of the extension arm of the lifting arm assembly by bolts, washers and nuts.

[0014] Further, the universal wheel has a locking function.

[0015] Further, the two longitudinal beams are welded in a herringbone shape at the middle positions of the two parallel bottom beams.

[0016] (Three) beneficial effects

[0017] The utility model provides a kind of movable hoisting device for special vehicle maintenance field operation, the movable hoisting device includes base assembly, lifting arm assembly, hydraulic cylinder, lifting hook, counterweight and fixed lug.The utility model simple structure, convenient operation, it is easy to move, and applicability is wide, can be adjusted according to actual use demand, the length of lifting arm, lifting hook model etc.

[0018] The utility model has the following specific beneficial effects:

[0019] 1. The device can assist manual completion of maintenance and installation of heavy parts, reduce personnel work intensity, improve installation quality and improve work efficiency.

[0020] 2. Unlike the traditional lifting mode using crane or forklift, the utility model innovatively proposes a movable manual hydraulic hoisting tool, which realizes heavy lifting, lifting, carrying and other operations in field operation and without power supply.

[0021] 3. The device is a flexible device, which can adjust the length of the lifting arm, select the size of the lifting hook, meet the lifting, lifting and carrying requirements of different scenes and different weights according to actual needs.

[0022] 4. The device is provided with a counterweight, which can increase the stability of the device after lifting the weight by adjusting the number and position of the counterweight.

[0023] 5. The overall structure of the device meets the engineering design, is reliable and durable, and can continuously ensure the field operation requirements of special vehicle maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the movable hoisting device of the utility model;

[0025] Figure 2 It is a schematic diagram of the structure of the movable hoisting device of the utility model (without counterweight);

[0026] Figure 3 It is a schematic diagram of the use of the movable hoisting device of the utility model (long lifting arm);

[0027] Figure 4 It is a schematic diagram of the use of the movable hoisting device of the utility model (short lifting arm);

[0028] Figure 5 It is a schematic diagram of the use of the movable hoisting device of the utility model (without extension arm).

[0029] In the drawing: 1 - base assembly; 2 - lifting arm assembly; 3 - hydraulic cylinder; 4 - lifting hook; 5 - counterweight; 6 - fixed lug; 101 - bottom beam; 102 - universal wheel; 103 - longitudinal beam; 104 - connecting groove; 201 - fixed lifting arm; 202 - extension arm. DETAILED DESCRIPTION

[0030] In order to make the purpose, content and advantages of the utility model clearer, the specific embodiments of the utility model are described in further detail below in combination with the drawings and examples.

[0031] The embodiment proposes a movable hoisting device for field operation of special vehicle maintenance, the overall structure of which is shown in Figure 1 It mainly includes base assembly 1, lifting arm assembly 2, hydraulic cylinder 3, lifting hook 4, counterweight 5 and fixed lug 6.

[0032] The base assembly 1 is used for the overall support and fixation of the movable hoisting device. The length-adjustable lifting arm assembly 2 is installed on the base assembly 1. As Figure 2As shown, the base assembly 1 includes the bottom beam 101, the universal wheel 102, the longitudinal beam 103 and the connecting groove 104. Among them, the four bottom beams 101 and the two longitudinal beams 103 are square steel tubes, the four bottom beams 101 are staggered welded to form a frame structure, the seven universal wheels 102 are respectively installed at the bottom of the four bottom beams 101, facilitating the movement of the movable hoisting device, and the universal wheels 102 have a locking function, which can avoid sliding during the hoisting of heavy objects. The two longitudinal beams 103 are herringbone-shaped and welded at the middle position of the two parallel bottom beams 101, and the top of one of the two longitudinal beams 103 is welded with the connecting groove 104. The hoisting arm assembly 2 includes the fixed hoisting arm 201 and the extension arm 202, four sets of equidistant adjusting holes are respectively formed in the fixed hoisting arm 201 and the extension arm 202, and the extension arm 202 is fixed on the fixed hoisting arm 201 by bolts, washers and nuts through the adjusting holes. The fixed end of the fixed hoisting arm 201 is installed and fixed on the connecting groove 104 of the base assembly 1 through a pin shaft and a split pin.

[0033] The two fixed ears 6 are vertically aligned and welded on the base assembly 1 and the hoisting arm assembly 2, and are used for installing the hydraulic cylinder 3. The two ends of the hydraulic cylinder 3 are installed and fixed on the two fixed ears 6 by bolts, washers and nuts, and serve as the main power source of the movable hoisting device. In the embodiment, the hydraulic cylinder 3 is a manual double-ear hydraulic cylinder.

[0034] The lifting hook 4 is hung at the front end of the extension arm 202 of the hoisting arm assembly 2 by bolts, washers and nuts, and is used for lifting heavy objects; and the counterweight 5 is placed on the bottom beam 101 of the base assembly 1 and is located on both sides of the longitudinal beam 103, and is used for ensuring the stability of the movable hoisting device.

[0035] The movable hoisting device of the utility model can adjust the length of the hoisting arm assembly 2 according to the use scene and requirements, and has a total of 7 gears for selection. In addition, different sizes and bearing capacities of the lifting hook 4 can be provided according to the use scene and requirements, and the number of the counterweight 5 can be adjusted according to the center of gravity of the heavy object, the position and mass of the lifting hook 4.

[0036] The movable hoisting device of the utility model is used for the movable hoisting method for special vehicle maintenance field operation, and includes the following steps:

[0037] S1. According to the use scene requirements, the appropriate matching hole position of the extension arm 202 and the fixed hoisting arm 201 is selected, and is fixed by bolts, washers and nuts, so as to realize the adjustment of the gear of the hoisting arm assembly 2.

[0038] S2. According to the hoisting requirement, the appropriate size of the lifting hook 4 is selected. The bolts and nuts for hanging the lifting hook 4 are removed, the appropriate lifting hook 4 is replaced, and then the installation is carried out through the bolts and nuts.

[0039] S3. According to the gravity center, mass, etc. of the heavy object, preliminarily estimate the distribution scheme of the counterweight 5 and place it on both sides of the longitudinal beam 103 of the base assembly 1.

[0040] S4. Push the movable hoisting device to the vicinity of the to-be-lifted object, and place the lifting hook 4 above the lifting point of the to-be-lifted object.

[0041] S5. Lift the heavy object by manually controlling the hydraulic cylinder 3.

[0042] S6. Observe the stress state of the movable hoisting device, and keep the hoisting posture of the movable hoisting device balanced by adjusting the position and number of the counterweight 5.

[0043] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and deformations can be made, and these improvements and deformations should be considered as the protection scope of the present application.

Claims

1. A mobile hoisting device for special vehicle maintenance field operation, characterized in that, The movable hoisting device comprises a base assembly, a hoist arm assembly, a hydraulic cylinder, a hook, a counterweight and a fixing lug; the base assembly is used for overall support and fixation of the movable hoisting device; the hoist arm assembly with adjustable length is installed on the base assembly; two fixing lugs are vertically aligned and installed on the base assembly and the hoist arm assembly, and are used for installing the hydraulic cylinder; the two ends of the hydraulic cylinder are fixed on the two fixing lugs, and serve as the main power source of the movable hoisting device; the hook is hung on the front end of the hoist arm assembly, and is used for lifting heavy objects; the counterweight is placed on the base assembly, and is used for ensuring stability of the movable hoisting device.

2. The mobile hoisting device for special vehicle maintenance field operation of claim 1, wherein, The two fixing lugs are vertically aligned and welded on the base assembly and the hoist arm assembly.

3. The mobile hoisting device for special vehicle maintenance field operation of claim 1, wherein, The two ends of the hydraulic cylinder are fixed on the two fixing lugs by bolts, washers and nuts.

4. The mobile hoisting device for special vehicle maintenance field operation of claim 1, wherein, The hydraulic cylinder is a manual double-ear hydraulic cylinder.

5. The mobile hoisting device for special vehicle maintenance field operation of claim 1, wherein, The base assembly comprises a bottom beam, a universal wheel, a longitudinal beam and a connecting groove; a plurality of bottom beams are staggered and welded to form a frame structure, and a plurality of universal wheels are respectively installed at the bottom of the plurality of bottom beams; two longitudinal beams are fixed in a herringbone shape on the two bottom beams, and the one longitudinal beam is provided with the connecting groove; the hoist arm assembly comprises a fixed hoist arm and an extension arm, a plurality of sets of equidistant adjustment holes are respectively formed in the fixed hoist arm and the extension arm, the extension arm is fixed on the fixed hoist arm by bolts, washers and nuts through the adjustment holes, and the fixed end of the fixed hoist arm is fixed on the connecting groove of the base assembly by a pin shaft and a split pin.

6. The mobile hoisting device for special vehicle maintenance field operation of claim 5, wherein, The bottom beam and the plurality of longitudinal beams are square steel pipes.

7. The mobile hoisting device for special vehicle maintenance field operation of claim 5, wherein, The hook is hung on the front end of the extension arm of the hoist arm assembly by bolts, washers and nuts.

8. The mobile hoisting device for special vehicle maintenance field operation of claim 5, wherein, The universal wheel has a locking function.

9. The mobile hoisting device for special vehicle maintenance field operation of claim 5, wherein, The two longitudinal beams are welded in a herringbone shape at the middle positions of the two parallel bottom beams.

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