Integrated hydraulic power unit of crawler-type lifting platform

Abstract

The utility model relates to the technical field of hydraulic devices, in particular to an integrated hydraulic power unit of a crawler-type lifting platform. The device comprises an oil tank, an oil pump and a valve group, the oil pump is fixedly mounted on one side of the oil tank in a clinging manner, the valve group is fixedly mounted on the top of the oil pump in a clinging manner, an oil outlet and an oil inlet of the oil tank are directly connected with an oil outlet and an oil inlet of the oil pump, and the oil outlet and the oil inlet of the oil pump are directly connected with an oil outlet and an oil inlet of the valve group. An oil supply port and an oil return port of the valve group are formed in the top and two sides. The oil tank, the oil pump and the valve group are directly connected with one another, pipeline connection is omitted, the oil tank, the oil pump and the valve group can be connected into a whole, packaging and installation are facilitated, the overall integration degree is high, disassembly and maintenance are convenient, the installation space is reduced, and the influence on extension of the lifting platform is avoided; the utility model has the advantages of simple structure, fewer pipelines and easiness in maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic devices, in particular to an integrated hydraulic power unit of a crawler type lifting platform. Background Art

[0002] Hydraulic equipment consists of a power part - an oil pump; an executive part - a hydraulic motor, such as an oil cylinder and an oil motor; a control part - various pressure, flow and direction control valves and auxiliary parts - oil tanks and pipelines. Through these devices, the pressure energy and mechanical energy of the liquid medium in the system are converted to each other to achieve the purpose of transmitting motion, force and torque. The energy transmitted by hydraulic equipment has a large range, and can achieve stepless speed regulation in a wide range, running smoothly, especially at low speed, can be remotely controlled, easy to operate, easy to automate, and the moving parts are well lubricated and have a long life.

[0003] The power unit of the hydraulic lifting platform usually adopts a split structure, including independent components such as valve group, motor pump, oil tank, etc. This structure leads to a large space occupation for equipment installation, complex pipeline connection and difficult maintenance. Utility Model Content

[0004] In order to improve the overall integration of a hydraulic lifting platform power unit, the utility model provides an integrated hydraulic power unit for a crawler lifting platform.

[0005] The utility model provides a crawler-type lifting platform integrated hydraulic power unit adopts the following technical solutions:

[0006] A crawler lifting platform integrated hydraulic power unit, including an oil tank, an oil pump and a valve group, an oil pump is fixedly installed close to one side of the oil tank, a valve group is fixedly installed close to the top of the oil pump, the oil tank and the oil pump are interconnected, the oil pump and the valve group are interconnected, the oil outlet of the oil tank is directly connected to the oil inlet of the oil pump, the oil outlet of the oil pump is directly connected to the oil inlet of the valve group, and the oil supply port and oil return port of the valve group are arranged on the top and both sides.

[0007] By adopting the above technical scheme, the oil tank, oil pump and valve group are directly connected to each other, and the pipeline connection is eliminated. The oil tank, oil pump and valve group can be connected into a whole, which is convenient for packaging and installation. The overall integration is high, disassembly and maintenance are convenient, and the installation space is reduced, which is beneficial to avoid affecting the extension of the lifting platform.

[0008] Preferably, an oil filling port is opened on the top of the oil tank, and a sealing cover is provided at the oil filling port.

[0009] By adopting the above technical solution, the oil replenishing port is used to take out or replenish the hydraulic oil in the oil tank, and the sealing cover is used to seal the oil replenishing port to avoid external contamination.

[0010] Preferably, a filtering device is provided in the oil tank, and the filtering device is connected to the oil outlet of the oil tank and the oil inlet of the oil pump.

[0011] By adopting the above technical solution, the filter device is used to filter the hydraulic oil entering the oil pump and the valve group, thereby reducing the impact of the contaminated hydraulic oil on the operation of the equipment.

[0012] Preferably, an oil pump motor is fixedly mounted closely on one side of the oil pump, and a main shaft of the oil pump motor is fixedly connected to a rotating shaft inside the oil pump.

[0013] By adopting the above technical solution, the oil pump motor is used to drive the oil pump to realize oil supply control.

[0014] Preferably, a motor seat is provided at the bottom of the oil pump motor, and the bottom of the motor seat is flush with the bottom of the oil tank.

[0015] By adopting the above technical solution, the motor seat is used to install the oil pump motor, while maintaining the same installation surface as the oil tank, thereby improving the stability of the installation.

[0016] Preferably, an electromagnetic controller is fixedly installed closely on one side of the valve group, and the telescopic shaft of the electromagnetic controller is fixedly connected to the sliding shaft in the valve group.

[0017] By adopting the above technical solution, the electromagnetic controller is used to control the switching and sequence in the valve group.

[0018] In summary, the utility model has the following beneficial technical effects:

[0019] 1. The oil tank, oil pump and valve group are directly connected to each other, and the pipeline connection is eliminated. The oil tank, oil pump and valve group can be connected into a whole, which is convenient for packaging and installation. The overall integration is high, which is convenient for disassembly and maintenance, reduces the installation space, and is conducive to avoiding affecting the extension of the lifting platform.

[0020] 2. The oil filling port is used to take out or add hydraulic oil to the oil tank. The sealing cover is used to seal the oil filling port to avoid external pollution. The filter device is used to filter the hydraulic oil entering the oil pump and valve group to reduce the impact of contaminated hydraulic oil on equipment operation. The oil pump motor is used to drive the oil pump to achieve oil supply control. The motor seat is used to install the oil pump motor while maintaining the same mounting surface as the oil tank to improve the stability of the installation. The electromagnetic controller is used to control the reversing and sequence in the valve group.

[0021] 3. Integrating components such as valve group, oil pump and oil tank into one structure achieves the advantages of simple structure, reduced pipelines and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the side structure of the utility model;

[0023] Figure 2It is a schematic diagram of the top view structure of the utility model.

[0024] Description of reference numerals:

[0025] 1. Oil tank, 11. Oil filling port, 111. Sealing cover, 12. Filter device, 2. Oil pump, 21. Oil pump motor, 211. Motor seat, 3. Valve group, 31. Solenoid controller. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-2 The utility model is described in further detail. Example 1

[0027] The utility model embodiment discloses a crawler type lifting platform integrated hydraulic power unit, referring to Figure 1 and 2 , comprising an oil tank 1, an oil pump 2 and a valve group 3, characterized in that: the oil pump 2 is fixedly installed on one side of the oil tank 1, the valve group 3 is fixedly installed on the top of the oil pump 2, the oil tank 1 and the oil pump 2 are communicated with each other, the oil pump 2 and the valve group 3 are communicated with each other, the oil outlet of the oil tank 1 is directly connected to the oil inlet of the oil pump 2, the oil outlet of the oil pump 2 is directly connected to the oil inlet of the valve group 3, and the oil supply port and the oil return port of the valve group 3 are arranged on the top and both sides.

[0028] During installation, first connect the oil tank 1, oil pump 2 and valve group 3 and fix them by bolts, then fix the oil tank 1, oil pump 2 and valve group 3 as a whole on the crawler lifting platform, and finally use hydraulic pipes to connect the power components of the crawler lifting platform.

[0029] When in use, first check whether the oil circuits of the oil tank 1, oil pump 2 and valve group 3 are unobstructed, and check for oil leakage. After checking that everything is correct, use it normally. Example 2

[0030] Reference Figure 1 and 2 The oil tank 1 has an oil filling port 11 at the top thereof, and a sealing cover 111 is provided at the oil filling port 11 .

[0031] The sealing cover 111 and the oil replenishing port 11 are threadedly connected to each other, and a sealing gasket is installed at the contact point between the sealing cover 111 and the edge of the oil replenishing port 11 .

[0032] Reference Figure 1 A filter device 12 is provided in the oil tank 1 , and the filter device 12 is connected to the oil outlet of the oil tank 1 and the oil inlet of the oil pump 2 .

[0033] The filter device 12 includes a filter element and a pipeline, and the filter element is arranged in the middle position of the oil tank 1.

[0034] Reference Figure 1and 2 An oil pump motor 21 is fixedly installed on one side of the oil pump 2 , and the main shaft of the oil pump motor 21 is fixedly connected to the rotating shaft inside the oil pump 2 .

[0035] Reference Figure 1 A motor seat 211 is provided at the bottom of the oil pump motor 21 , and the bottom of the motor seat 211 is flush with the bottom of the oil tank 1 .

[0036] Reference Figure 1 and 2 An electromagnetic controller 31 is fixedly installed on one side of the valve group 3 , and the telescopic shaft of the electromagnetic controller 31 is fixedly connected to the sliding shaft in the valve group 3 .

[0037] The total height and width of the main bodies of the oil pump 2 , the oil pump motor 21 , the valve group 3 and the electromagnetic controller 31 do not exceed the height and width of the oil tank 1 .

[0038] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated hydraulic power unit for a crawler-type lifting platform, comprising an oil tank (1), an oil pump (2) and a valve group (3), characterized in that: An oil pump (2) is fixedly mounted close to one side of the oil tank (1), a valve group (3) is fixedly mounted close to the top of the oil pump (2), the oil tank (1) and the oil pump (2) are in communication with each other, and the oil pump (2) and the valve group (3) are in communication with each other; The oil outlet of the oil tank (1) is directly connected to the oil inlet of the oil pump (2), and the oil outlet of the oil pump (2) is directly connected to the oil inlet of the valve group (3); The oil supply port and the oil return port of the valve group (3) are arranged at the top and both sides; An oil pump motor (21) is fixedly mounted in close proximity to one side of the oil pump (2), and a main shaft of the oil pump motor (21) is fixedly connected to a rotating shaft inside the oil pump (2); A motor seat (211) is provided at the bottom of the oil pump motor (21), and the bottom of the motor seat (211) is flush with the bottom of the oil tank (1); An electromagnetic controller (31) is fixedly mounted in close proximity to one side of the valve group (3), and a telescopic shaft of the electromagnetic controller (31) is fixedly connected to a sliding shaft inside the valve group (3).

2. The crawler-type lifting platform integrated hydraulic power unit according to claim 1, characterized in that: The top of the oil tank (1) is provided with an oil replenishing port (11), and a sealing cover (111) is provided at the oil replenishing port (11).

3. The crawler-type lifting platform integrated hydraulic power unit according to claim 1, characterized in that: A filter device (12) is provided in the oil tank (1), and the filter device (12) is connected to the oil outlet of the oil tank (1) and the oil inlet of the oil pump (2).

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