CN218717897U

CN218717897U - Throttling buffer structure for spiral swing oil cylinder

Info

Publication number: CN218717897U
Application number: CN202223261126.3U
Authority: CN
Inventors: 岳勇杰; 张文君; 钱雪锋
Original assignee: Shanghai Dunke Machinery Co ltd
Current assignee: Shanghai Dunke Machinery Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-03-24
Anticipated expiration: 2032-12-06

Abstract

The utility model provides a throttle buffer structure for spiral swing hydro-cylinder, the cylinder body including a spiral swing hydro-cylinder, be provided with a cavity in the cylinder body, be provided with first hydraulic fluid port and second hydraulic fluid port on the lateral wall of cylinder body, the outside of first hydraulic fluid port is provided with first casing, be provided with a first inner chamber in the first casing, the outside of second hydraulic fluid port is provided with the second casing, be provided with a second inner chamber in the second casing, be provided with first connector and second connector on the first casing, be provided with third connector and fourth connector on the second casing, be provided with a throttle check valve in first connector and the third connector respectively. Compared with the prior art, the utility model, its effect is positive and obvious. 1. The throttling buffer strength is adjustable; 2. the device can be quickly started during return trip; 3. the structure is modularized on the surface of the cylinder body, and the use is reliable.

Description

Throttling buffer structure for spiral swing oil cylinder

Technical Field

The utility model relates to the field of machinary, especially, relate to spiral swing hydro-cylinder, especially a throttle buffer structure for spiral swing hydro-cylinder.

Background

The spiral swing oil cylinder is widely applied. The spiral swing oil cylinder arranged on the station of the automatic production line needs throttling buffering, and the return stroke can be quickly opened. The existing technology is that two ends of a cylinder body are respectively provided with an oil port, the two oil ports are communicated through an external oil pipe, a throttling plug (such as a circle position in fig. 1) is added beside the oil port, after a piston slides through the oil ports, oil returns to another oil port through the throttling plug from one oil port, so that the buffering purpose is achieved, when a return stroke is opened, the oil still opens the piston through the throttling plug, and the piston can move quickly until the piston slides to the oil port, and the buffering angle generally requires 13 to 18 degrees. The size of the throttling hole is fixed, and the buffering strength cannot be adjusted. And the throttle plug has the not hard up risk in long-term use.

Disclosure of Invention

An object of the utility model is to provide a throttle buffer structure for spiral swing hydro-cylinder, this kind of a throttle buffer structure for spiral swing hydro-cylinder solve among the prior art throttle hole size fixed unable adjustment buffer strength, return stroke when opening speed slow and the throttle stopper receive the easy not hard up technical problem of impact for a long time.

The utility model discloses a throttle buffer structure for spiral swing hydro-cylinder, cylinder body including a spiral swing hydro-cylinder, the cylinder body in be provided with a cavity, the lateral wall of cylinder body on be provided with first hydraulic fluid port and second hydraulic fluid port, first hydraulic fluid port with the second hydraulic fluid port respectively with the cavity intercommunication, the outside of first hydraulic fluid port be provided with first casing, first casing in be provided with a first inner chamber, first inner chamber with first hydraulic fluid port intercommunication, the outside of second hydraulic fluid port be provided with the second casing, the second casing in be provided with a second inner chamber, the second inner chamber with second hydraulic fluid port intercommunication, first casing on be provided with first connector and second connector, first connector with the second connector all with first inner chamber intercommunication, the second casing on be provided with third connector and fourth connector, the third connector with fourth connector all with second inner chamber intercommunication, the outside of first connector and the one-way throttle valve of first connector be connected the one-way throttle valve and the one-way throttle valve is connected the other end of second connector and the one-way throttle valve are linked together the one-way flow through the first connector and the one-way throttle valve is linked together.

Further, the first throttling one-way valve and the second throttling one-way valve have the function of regulating flow.

The working principle is as follows: a throttling one-way valve is applied to the surface of the cylinder body of the spiral swing oil cylinder, and an oil way is optimized.

Compared with the prior art, the utility model, its effect is positive and obvious. 1. The throttling buffer strength is adjustable; 2. the device can be quickly started during return trip; 3. the structure is modularized on the surface of the cylinder body, and the use is reliable.

Drawings

Fig. 1 is a schematic view of a throttling structure in the prior art.

Fig. 2 is a schematic sectional view of a throttling buffer structure for a spiral oscillating cylinder of the present invention.

Fig. 3 is a schematic side view of the throttling buffer structure for the spiral swing cylinder of the present invention.

Fig. 4 is a schematic view of the throttling principle of the throttling buffer structure for the spiral swing cylinder of the present invention.

Detailed Description

Example 1

As shown in fig. 2, fig. 3 and fig. 4, the solution provided by the present invention,

the utility model provides a throttle buffer structure for spiral swing hydro-cylinder, cylinder body 1 including a spiral swing hydro-cylinder, be provided with a cavity in the cylinder body 1, be provided with first hydraulic fluid port and second hydraulic fluid port on the lateral wall of cylinder body 1, first hydraulic fluid port and second hydraulic fluid port communicate with the cavity respectively, the outside of first hydraulic fluid port is provided with first casing 2, be provided with a first inner chamber in the first casing 2, first inner chamber and first hydraulic fluid port intercommunication, the outside of second hydraulic fluid port is provided with second casing 3, be provided with a second inner chamber in the second casing 3, the second inner chamber communicates with the second hydraulic fluid port, be provided with first connector 4 and second connector 5 on the first casing 2, first connector 4 and second connector 5 all communicate with first inner chamber, be provided with third connector 6 and fourth connector 7 on the second casing 3, third connector 6 and fourth connector 7 all communicate with the second inner chamber, the outside of first connector 4 is connected with the one end of a first throttle check valve 8, the other end of first throttle check valve 8 is linked together through first oil pipe and fourth connector 7, the outside of third connector 6 is connected with the second connector 9 and the throttle valve 9 is linked together through the one-way valve 9.

Specifically, two unidirectional oil paths, namely a first oil port → a second connecting port 5 → a second oil pipe → a third connecting port 6 (a second throttling one-way valve 9) → a second oil port ", and a second oil port → a fourth connecting port 7 → a first oil pipe → a first connecting port 4 (a first throttling one-way valve 8) → a first oil port", are formed in the cavity of the external flow direction on the corresponding side, and are respectively used for oil to flow in different directions.

Further, the first throttle check valve 8 and the second throttle check valve 9 have a function of regulating the flow rate.

Specifically, the intensity of the oil flow can be adjusted through the throttling one-way valve, so that the intensity of throttling buffering is adjusted; the shell and the oil pipe which are arranged outside the cylinder body can realize modular installation, the first throttling one-way valve 8 and the second throttling one-way valve 9 are common standard parts, and the whole structure is very convenient to install and replace; the impact of fluid mainly takes place at first throttle check valve 8 and second throttle check valve 9, not two oil mouths department, reduces the impacted number of times of cylinder body, has further promoted the life of cylinder body.

The working process of the embodiment is as follows:

the piston gear sleeve of the spiral swing oil cylinder moves back and forth under the action of hydraulic thrust to drive the output shaft to swing. After the piston gear sleeve slides leftwards to pass through the first shell 2, oil flows through the first oil port, the second connecting port 5 and the third connecting port 6 and returns to the second oil port through the second throttling one-way valve 9, and the throttling strength can be adjusted through adjusting the throttling one-way valve 9 according to working condition requirements. During return stroke, oil flows through the second oil port, the fourth connecting port 7 and the first connecting port 4, flows through the first throttling one-way valve 8, returns to the cavity through the first oil port, and quickly opens the piston gear sleeve to enable the output shaft to quickly act; the piston operates on the same principle to the right.

The details to be noted are that the fit clearance between the piston and the cylinder barrel is preferably 0.03 to 0.06mm, when the fit clearance is too small, the piston is easy to block, and when the fit clearance is too large, the throttling effect is lost.

Claims

1. The utility model provides a throttle buffer structure for spiral swing hydro-cylinder, includes cylinder body (1) of a spiral swing hydro-cylinder, cylinder body (1) in be provided with a cavity, the lateral wall of cylinder body (1) on be provided with first hydraulic fluid port and second hydraulic fluid port, first hydraulic fluid port with the second hydraulic fluid port respectively with cavity intercommunication, its characterized in that: the outer side of the first oil port is provided with a first shell (2), a first inner cavity is arranged in the first shell (2), the first inner cavity is communicated with the first oil port, the outer side of the second oil port is provided with a second shell (3), a second inner cavity is arranged in the second shell (3), the second inner cavity is communicated with the second oil port, the first shell (2) is provided with a first connecting port (4) and a second connecting port (5), the first connecting port (4) and the second connecting port (5) are communicated with the first inner cavity, the second shell (3) is provided with a third connecting port (6) and a fourth connecting port (7), the third connecting port (6) and the fourth connecting port (7) are communicated with the second inner cavity, the outer side of the first connecting port (4) is connected with one end of a first throttling one-way valve (8), the other end of the first throttling one-way valve (8) is communicated with one end of the second throttling one-way valve (9), and the other end of the second throttling one-way valve (9) is communicated with the second throttling one-way valve (9).

2. The throttling buffer structure for the spiral swinging oil cylinder according to claim 1, characterized in that: the first throttling one-way valve (8) and the second throttling one-way valve (9) have the function of adjusting flow.