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Mechanically followable oil cylinder

An oil cylinder and mechanical technology, which is applied in the field of mechanically followable oil cylinders, can solve the problems of easy damage of oil cylinders and hidden dangers of synchronous jacking.

Pending Publication Date: 2018-10-09
穆钜(上海)动力技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a mechanically followable oil cylinder in order to overcome the defects that the oil cylinder used in the hydraulic synchronous jacking in the prior art has a state that is easy to destroy the synchronous jacking and easily cause safety hazards

Method used

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Embodiment Construction

[0091] The present invention is further illustrated below by means of examples, but the present invention is not limited thereto within the scope of examples.

[0092] This embodiment discloses a mechanically followable oil cylinder, refer to Figure 1-6 It should be understood that the mechanically followable oil cylinder includes a support base 10 , a cylinder body 20 , a piston rod 30 , a pressure plate 40 , a self-locking nut 50 , a hydraulic motor 60 and a gear 70 . The cylinder body 20 is pressed on the support seat 10. The cylinder body 20 has a cylinder bottom 201, a side wall part 202 and an extension part 203. The extension part 203 extends from the cylinder bottom 201 along the height direction of the cylinder body 20. The extension part 203 and the side wall part A gap is formed between the inner walls of 202 , a first oil inlet 204 is provided on the side wall part 202 , and a first oil passage 205 is provided on the extension part 203 . The piston rod 30 is slee...

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Abstract

The invention provides a mechanically followable oil cylinder. The mechanically followable oil cylinder comprises a support base, a cylinder body, a piston rod, a pressing plate, a self-locking nut, ahydraulic motor and a gear, wherein the cylinder body is provided with a cylinder bottom, a side wall portion and an extending portion; the extending portion extends from the cylinder bottom; a firstoil inlet is formed in the side wall portion; a first oil passage is arranged on the extending portion; the piston rod slides relative to the extending portion; a first threaded portion is arranged on the outer wall surface of the piston rod; the top of the piston rod, the extending portion and the side wall portion are encircled to form a first stress cavity; the pressing plate, the extending portion and the piston rod are encircled to form a second stress cavity; the second stress cavity communicates with a first oil inlet, the first stress cavity and the first oil passage; the self-lockingnut sleeves the first threaded portion; a second threaded portion is arranged on the outer wall surface of the self-locking nut and matched with the gear; and when the piston rod moves downwards relative to the extending portion, the top surface of the self-locking nut is propped against the support base. The mechanically followable oil cylinder can reduce potential safety hazards, and is small in size and light in weight.

Description

technical field [0001] The invention relates to a mechanically followable oil cylinder. Background technique [0002] In the existing construction process, hydraulic synchronous jacking is a commonly used construction method when the object to be lifted is vertically lifted. The traditional hydraulic synchronous jacking method is realized by using multiple oil cylinders. The solenoid valve is used to control the hydraulic pressure of the oil cylinder to realize the lifting of the piston rod in the oil cylinder. During synchronous jacking, hydraulic locks or balance valves are installed in the hydraulic system to keep the piston rods of multiple cylinders in sync. Although the traditional synchronous jacking system can provide safety protection in terms of hydraulic protection, if there are problems such as pipe burst and internal leakage of the oil cylinder in the hydraulic system, it may cause the hydraulic system to lose pressure and cause the piston rod to lose its hydra...

Claims

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Application Information

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IPC IPC(8): F15B15/14F15B15/26
CPCF15B15/14F15B15/26F15B2215/30
Inventor 张朝亮汪忠华
Owner 穆钜(上海)动力技术有限公司
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