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Pressurization oil cylinder capable of displaying piston stroke

A pressurized cylinder and piston stroke technology, applied in the field of pressurized cylinders, can solve the problems that the piston stroke cannot be directly displayed, unfavorable for daily observation, and difficult to judge faults, etc.

Pending Publication Date: 2019-03-22
NINGBO HAIDA PLASTIC MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing booster cylinder design, the stroke of the piston cannot be directly displayed, which is not conducive to daily observation and also brings difficulties to the judgment of faults

Method used

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  • Pressurization oil cylinder capable of displaying piston stroke
  • Pressurization oil cylinder capable of displaying piston stroke
  • Pressurization oil cylinder capable of displaying piston stroke

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In embodiment 1, such as figure 2 As shown, the pin 5 is vertically arranged on the second cylinder 62 , the slideway 4 is arranged on the inner wall of the cylinder body 2 where the second cavity 22 is located, and the pin 5 is always located in the second cavity 22 .

Embodiment 2

[0030] In embodiment 2, such as image 3 As shown, the slideway 4 includes a long-waist blind hole 41 arranged on the outer wall of the cylinder body 2 as a blind hole, and a through hole 42 parallel to the booster piston 6 and opening on the second step surface 24; the long-waist blind hole 41 is located on the periphery of the third cavity 23, and the through hole 42 communicates with the long waist blind hole 41; the pin 5 includes a cross bar 51 connected to the first stepped surface 611 and slidingly arranged in the through hole 42, and connected to the cross bar One end of 51 and the longitudinal rod 52 in the long waist blind hole 41 are provided with gaps. Embodiment 2 is better than Embodiment 1 in that the first stepped surface 611 can touch the second stepped surface 24, which increases the stroke of the booster piston 6 as much as possible. The gas exchange between the second cavity 22 and the atmosphere is completed through the gap between the cross bar 51 and th...

Embodiment 3

[0035]The difference between embodiment 3 and embodiment 2 is: as Figure 9 As shown, the cross bar 51 includes a T-shaped tenon portion located at the opposite end of the second threaded hole 513, and the first stepped surface 611 is provided with a T-shaped mortise 613 that is slidably fitted with the T-shaped tenon 514. The T-shaped mortise 613 is in the form of Ring and coaxial with booster piston 6 . The booster piston 6 may generate self-rotation during the moving process. If the cross bar 51 is fixed on the first stepped surface 611, the cross bar 51 will be easily broken, while the T-shaped mortise 613 and the T-shaped tenon 514 The clearance sliding fit structure can cause relative sliding between the supercharging piston 6 and the cross bar 51, so as not to affect the axial sliding of the cross bar 51, but also to avoid breaking the cross bar 51 during the spinning process of the supercharging piston 6 .

[0036] The outer wall of the cross bar 51 of embodiment 2 a...

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Abstract

The invention discloses a pressurization oil cylinder capable of displaying a piston stroke. The pressurization oil cylinder comprises an oil inlet connector, an oil outlet connector, and a pressurization piston. A first cavity is formed between the pressurization piston and the oil inlet connector. A third cavity is formed between the pressurization piston and the oil outlet connector. The pressurization piston comprises a first column body and a second column body which are arranged in the direction from the oil inlet connector to the oil outlet connector, wherein the outer diameter of the first column body is greater than that of the second column body. An oil cylinder body is provided with a second stair surface used for limiting the first column body to enter the third cavity. The first column body is provided with a first stair surface opposite to a second stair surface. A second cavity is formed between the first stair surface and the second stair surface. A sliding channel communicating the second cavity body with the outside is formed in the oil cylinder body. A pin extending out of the sliding channel is arranged at the pressurization piston. The pin is used as a reference for observing movement of the pressurization piston. The sliding channel is used as a channel for sewage discharging and ventilating. The pressurization oil cylinder is stable in operation and goodin oil sealing performance, and has the functions of lubricating oil filling and self-cleaning.

Description

technical field [0001] The invention relates to the field of mechanical equipment, in particular to a pressurized oil cylinder capable of displaying the stroke of a piston. Background technique [0002] Hydraulic cylinders are widely used, and ordinary oil cylinders are mostly used in construction machinery, metallurgy, injection molding, pressure machinery and other industries. At present, when used in pressure machinery, injection molding machinery, blow molding machinery and other occasions that require a large locking force, ordinary oil cylinders must increase the structural volume and add auxiliary oil cylinders to meet the demand, resulting in cumbersome structures and hydraulic systems and increased costs. high. This requires the use of a booster cylinder, that is, a booster mechanism is used to amplify the pressure of the low-pressure oil in the cylinder. [0003] In the existing booster cylinder design, the stroke of the piston cannot be directly displayed, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14F15B3/00
CPCF15B3/00F15B15/1423F15B15/1447
Inventor 沈良聪王航军
Owner NINGBO HAIDA PLASTIC MACHINERY