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Ultrahigh-pressure powerful jack

A lifter, pressure technology, applied in the direction of machines/engines, lifting devices, components of pumping devices for elastic fluids, etc. quality effect

Inactive Publication Date: 2015-03-04
GUANGDONG HUAYE POWER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The carrying capacity of the existing jacks is limited by the volume. To have a larger carrying capacity, the pressure of the hydraulic cylinder in the jack is required to be able to withstand a greater pressure. Therefore, the volume of the jack needs to be made very large, which is also A major factor affecting the jack
At the same time, the lifting height of the existing jack is mainly restricted by the stroke of the hydraulic cylinder. Even if a screw support rod is installed on the top of the plunger, when a higher stroke is required, the screw support rod needs to be screwed to a certain height first, and then Only when the pressure is supplied to make the plunger rise, the screw support rod is set in the middle of the plunger, and the screw support rod and the plunger are connected by threads, so its bearing weight is limited, which is also a key factor affecting the load capacity of the jack

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 , figure 2 , image 3 and Figure 8 , Figure 9As shown, the ultra-high pressure powerful jack of the present invention includes a cylinder body 101, an inner cylinder 103 and a plunger 102, the inner cylinder 103 is an upward cavity structure, and the lower part of the outer wall of the inner cylinder 103 is connected to the cylinder body 101 The lower part of the inner wall is sealed and fixedly connected, so that the upper part of the outer wall of the inner cylinder 103 forms a gap with the upper part of the inner wall of the cylinder body 101, and a cylinder sealing ring is arranged at the bottom of the gap to further seal the lower part of the outer wall of the inner cylinder 103 and the inner wall of the cylinder body 101. A seal is formed between the lower parts, the plunger 102 is a downward cavity structure, wherein the bottom end surface of the plunger 102 is provided with a sealing ring 104, and the bottom of the plunger 102 is sleeved o...

Embodiment 2

[0046] Such as Figure 4 and Figure 5 As shown, Embodiment 2 is similar to Embodiment 1, except that the height of the jack is higher, that is, the dimensions of the cylinder body 201, the inner cylinder 203 and the plunger 202 are higher, so that the inner cylinder 203 can To store more hydraulic oil, the high-pressure pump 206 and the cylinder block 201 are fixedly connected by positioning bolts 211, and a high-pressure inlet seal 107 is formed between the high-pressure oil inlet on the cylinder block 201 and the high-pressure pump 206, and the low-pressure oil inlet is connected to the high-pressure oil inlet. A low pressure oil supply seal 108 is formed between the pumps 206 . A filler port is arranged on the top of the plunger 202 , and the filler port is sealed by a filler plug 210 , and a handle 219 is movably connected outside the cylinder body 201 .

Embodiment 3

[0048] Such as Figure 6 As shown, embodiment 3 adopts the same principle as embodiment 1 and embodiment 2, and the difference is that the plunger is divided into two parts, which are respectively composed of an outer hanging plunger 302 and an inner hanging plunger 313, and the outer hanging plunger 302 and the inner hanging plunger 313 are both downward cavity structures, wherein the outer hanging plunger 302 is the upper part of the plunger, while the inner hanging plunger 313 is not the lower part of the plunger, and the outer hanging plunger 302 is threaded Outside the inner hanging plunger 313, the bottom of the inner hanging plunger 313 is sealed between the outer wall of the inner cylinder 314 and the cylinder body 201, and the inner top of the outer hanging plunger 302 is connected with a guide plunger 316, and the guide plunger 316 is to The lower cavity structure, and the lower end of the guide plunger 316 passes through the top of the inner suspension plunger 313, ...

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Abstract

The invention discloses an ultrahigh-pressure powerful jack, belonging to the technical field of a pressure jacking device. The ultrahigh-pressure powerful jack comprises a cylinder body, an inner cylinder and a plunger. The inner cylinder is of an upward hollow structure. The lower part of the outer wall of the inner cylinder is hermetically connected with the lower part of the inner wall of the cylinder body. The plunger is of a downward hollow structure. A sealing ring is arranged at the bottom of the plunger. The bottom of the plunger is hermetically sheathed between the outer wall of the inner cylinder and the inner wall of the cylinder body. The plunger can vertically move in a manner relative to the cylinder body along the centerline of the cylinder body. A low-pressure inlet which is communicated with the internal part of the inner cylinder and the external part of the cylinder body is arranged in the connected section of the inner cylinder and the cylinder body. A high-pressure inlet which is used for communicating the internal part and the external part of the cylinder body is arranged at the side wall of the cylinder body and below the sealing ring at the bottom of the plunger. The ultrahigh-pressure powerful jack has the advantages of simple structure, simplicity and convenience in operation, light weight, convenience in carrying, longer stroke and low cost; and since the internal part of the plunger is a cavity, not only can more hydraulic oil be stored in the cavity, but also the weight of the plunger is reduced and the jack is convenient to carry.

Description

technical field [0001] The invention relates to a pressure jacking device, in particular to an ultra-high pressure jacking device. Background technique [0002] Hydraulic jacks are mainly used for lifting items, and the height, maximum lifting height, volume and carrying capacity of hydraulic jacks determine the scope and occasions of use of hydraulic jacks. The carrying capacity of the existing jacks is limited by the volume. To have a larger carrying capacity, the pressure of the hydraulic cylinder in the jack is required to be able to withstand a greater pressure. Therefore, the volume of the jack needs to be made very large, which is also A major factor affecting the jack. At the same time, the lifting height of the existing jack is mainly restricted by the stroke of the hydraulic cylinder. Even if a screw support rod is installed on the top of the plunger, when a higher stroke is required, the screw support rod needs to be screwed to a certain height first, and then O...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66F3/25B66F3/42B66F3/26F04B53/14F04B53/10F04B53/00
Inventor 劳光汉
Owner GUANGDONG HUAYE POWER TECH