CN211975577U - Oil cylinder body and oil cylinder - Google Patents
Oil cylinder body and oil cylinder Download PDFInfo
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- CN211975577U CN211975577U CN202020622656.8U CN202020622656U CN211975577U CN 211975577 U CN211975577 U CN 211975577U CN 202020622656 U CN202020622656 U CN 202020622656U CN 211975577 U CN211975577 U CN 211975577U
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Abstract
The application relates to the technical field of hydraulic equipment, in particular to an oil cylinder body and an oil cylinder, which comprise a front end cover and a cylinder barrel; a piston accommodating cavity is formed in the cylinder barrel, and a first oil cavity is formed in the front end cover; a piston rod accommodating cavity is formed in the front end cover, and the piston accommodating cavity penetrates through the front end cover in the axial direction of the cylinder barrel, so that the first oil cavity is communicated with the piston accommodating cavity through the piston rod accommodating cavity; and a circulation passage is formed on the front end cover and is communicated with the first oil cavity and the piston accommodating cavity, so that hydraulic oil can flow into the first oil cavity from the piston accommodating cavity through the circulation passage. The application aims to solve the problem that the requirement is difficult to meet due to the fact that the reset time of an oil cylinder with a buffer device is too long at present, and provides an oil cylinder body and an oil cylinder.
Description
Technical Field
The application relates to the technical field of hydraulic equipment, in particular to an oil cylinder body and an oil cylinder.
Background
When equipment runs, the hydraulic oil cylinder has a working condition of quick reset for safety consideration, and the requirement is high. Therefore, the hydraulic oil cylinder is provided with a buffer device. However, under some working conditions, the time for resetting the oil cylinder needs to be controlled within an allowable range, and the arrangement of the buffer device often leads to overlong time for resetting the oil cylinder, so that the requirements are difficult to meet.
SUMMERY OF THE UTILITY MODEL
The application aims to solve the problem that the requirement is difficult to meet due to the fact that the reset time of an oil cylinder with a buffer device is too long at present, and provides an oil cylinder body and an oil cylinder.
In order to achieve the purpose, the following technical scheme is adopted in the application:
one aspect of the present application provides an oil cylinder body, including a front end cover and a cylinder barrel; a piston accommodating cavity is formed in the cylinder barrel, and a first oil cavity is formed in the front end cover; a piston rod accommodating cavity is formed in the front end cover, and the piston accommodating cavity penetrates through the front end cover in the axial direction of the cylinder barrel, so that the first oil cavity is communicated with the piston accommodating cavity through the piston rod accommodating cavity;
and a circulation passage is formed on the front end cover and is communicated with the first oil cavity and the piston accommodating cavity, so that hydraulic oil can flow into the first oil cavity from the piston accommodating cavity through the circulation passage.
Optionally, a valve is installed in the flow passage to limit the flow rate of the hydraulic oil in the flow passage.
The technical scheme has the beneficial effects that: and a proper valve is arranged in the flow channel according to the requirement, so that the oil cylinder obtains proper reset time, and the production requirement is further met.
Optionally, the valve is a throttle valve.
The technical scheme has the beneficial effects that: when the oil cylinder needs to be opened, the valve is closed, so that hydraulic oil cannot pass through the circulation channel, enters the first oil cavity and further enters the piston cavity, and the piston is pushed to move towards the rear end cover; when the oil cylinder needs to be reset, the piston rod moves towards the direction of the front end cover under the action of an external load, at the moment, the valve is adjusted, hydraulic oil flows through the circulation channel at a proper flow rate, the oil return speed is increased, the time required by the oil cylinder for resetting is further shortened, and the oil return speed can be adjusted by adjusting the flow rate of the hydraulic oil in the circulation channel through the valve, so that the oil cylinder can obtain ideal resetting time.
Optionally, the valve is a one-way valve.
The technical scheme has the beneficial effects that: the check valve is used to control the flow rate in one direction even if the flow rate of the hydraulic oil flowing from the first oil chamber into the piston accommodating chamber is controlled to be zero. When the oil cylinder needs to be opened, hydraulic oil cannot pass through the circulation channel, enters the first oil cavity and further enters the piston cavity, and pushes the piston to move towards the rear end cover; when the oil cylinder needs to be reset, the piston rod moves towards the direction of the front end cover under the action of an external load, at the moment, hydraulic oil flows through the circulation channel at a proper flow rate, the oil return speed is increased, and the time required by the oil cylinder resetting is further shortened. By adopting the one-way valve, the valve is not required to be controlled to be closed in the process of opening the oil cylinder, and the valve is opened in the process of oil return, so that the operation steps are simplified.
Optionally, the valve is a one-way throttle valve.
The technical scheme has the beneficial effects that: through the one-way throttle valve, the one-way flow of the hydraulic oil can be adjusted only when needed, and the proper adjustment of the resetting speed of the oil cylinder is realized.
Optionally, the valve is removably mounted on the front end cap.
The technical scheme has the beneficial effects that: this makes the valve convenient for dismouting, and then is convenient for maintain and change.
Optionally, a valve accommodating groove is formed in the front end cover, the valve accommodating groove is communicated with the flow passage, and the valve is inserted into the valve accommodating groove.
The technical scheme has the beneficial effects that: through the valve with the quick assembly disassembly of valve can be realized in the grafting of valve holding tank, further improves work efficiency.
Optionally, the receiving groove extends in a radial direction of the cylinder barrel.
The technical scheme has the beneficial effects that: for the extending direction that makes the holding tank slope in the axial of cylinder, the degree of depth that makes the extending direction perpendicular to radial then can reduce the holding tank of holding tank, and then reduces the amount of processing to the front end housing, reduces the processing degree of difficulty and process time.
Optionally, the valve has a hand-held end protruding from an outer surface of the front end cap.
The technical scheme has the beneficial effects that: when changing or maintaining the valve, the handheld end of accessible workman is handheld to operate, makes handheld end protrusion in the operation is then more convenient in the surface of front end housing.
Another aspect of the application provides an oil cylinder, including piston rod and foretell cylinder body, the piston rod install in the piston rod holds the intracavity.
The technical scheme provided by the application can achieve the following beneficial effects:
the hydro-cylinder that this application embodiment provided that this application provided has adopted the hydro-cylinder body that this application embodiment provided, through the design to this circulation passageway, has increased the oil return speed of hydraulic oil when the hydro-cylinder resets, and then has shortened the reset time of hydro-cylinder, has improved the work efficiency of hydro-cylinder.
Additional features of the present application and advantages thereof will be set forth in the description which follows, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It should be apparent that the drawings in the following description are embodiments of the present application and that other drawings may be derived from those drawings by a person of ordinary skill in the art without inventive step.
FIG. 1 is a schematic diagram of an internal structure of an embodiment of a cylinder provided in an embodiment of the present application;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic diagram of an internal structure of a cylinder in the prior art.
Reference numerals:
10-a valve;
11-a handheld end;
20-front end cover;
21-a first oil chamber;
22-a flow-through channel;
30-a cylinder barrel;
31-a piston receiving chamber;
40-a piston rod;
41-buffer section;
50-a piston;
60-rear end cap;
61-second oil chamber.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
As shown in fig. 1 to 2, one aspect of the present application provides a cylinder block including a front end cap 20 and a cylinder tube 30; a piston accommodating chamber 31 is formed in the cylinder 30, and a first oil chamber 21 is formed in the front end cover 20; a piston rod accommodating cavity is further formed in the front end cover 20, and the piston accommodating cavity 31 penetrates through the front end cover 20 in the axial direction of the cylinder 30, so that the first oil cavity 21 is communicated with the piston accommodating cavity 31 through the piston rod accommodating cavity;
a flow passage 22 is further formed in the front end cover 20, and the flow passage 22 communicates the first oil chamber 21 and the piston accommodating chamber 31, so that hydraulic oil can flow from the piston accommodating chamber 31 into the first oil chamber 21 through the flow passage 22.
The cylinder body provided by the embodiment of the application further comprises a rear end cover 60, a second oil chamber 61 is formed in the rear end cover 60, and the first oil chamber 21 and the second oil chamber 61 are both connected with an oil path. When the oil cylinder needs to be opened, hydraulic oil enters the first oil cavity 21 and further enters the piston cavity to push the piston to move towards the rear end cover 60; when the cylinder needs to be reset, the piston rod moves towards the front end cover 20 under the action of an external load, and at the moment, part of hydraulic oil flows from the piston accommodating cavity 31 to the first oil cavity 21 through the flow passage 22 at a proper flow rate, so that the oil return speed is increased, and the time required by the cylinder resetting is shortened.
The oil cylinder body provided by the embodiment of the application increases the oil return speed of hydraulic oil when the oil cylinder is reset through the design of the circulation channel 22, further shortens the reset time of the oil cylinder, and improves the working efficiency of the oil cylinder.
Optionally, a valve 10 is installed in the flow passage 22 to limit the flow rate of the hydraulic oil in the flow passage 22. And a proper valve 10 is arranged in the flow channel 22 according to requirements, so that the oil cylinder obtains proper reset time, and further, the production requirement is met.
Optionally, the valve 10 is a throttle valve.
When the oil cylinder does not adopt the cylinder body provided by the embodiment of the application, when the oil cylinder is reset rapidly, the diameter of the buffering section 41 of the piston rod is larger than that of other parts of the piston rod, so that the clearance between the buffering section 41 and the cylinder body is smaller than that between other parts of the piston rod and the cylinder body. However, due to the influence of external load variation and machining errors, when the oil cylinder is reset, the reset time difference of the oil cylinder is large.
In the present embodiment, a throttle valve is adopted, such that an oil inlet of the throttle valve is communicated with the piston accommodating chamber 31, and an oil outlet of the throttle valve is communicated with the first oil chamber 21. When the oil cylinder needs to be opened, the valve 10 is closed, so that hydraulic oil cannot pass through the flow passage 22, enters the first oil cavity 21 and further enters the piston cavity, and the piston is pushed to move towards the rear end cover 60; when the oil cylinder needs to be reset, the piston rod moves towards the front end cover 20 under the action of an external load, at the moment, the valve 10 is adjusted, hydraulic oil flows through the circulation channel 22 at a proper flow rate, the oil return speed is increased, the time required by the oil cylinder reset is further shortened, the oil return speed can be adjusted by adjusting the flow rate of the hydraulic oil in the circulation channel 22 through the valve 10, and the oil cylinder can obtain ideal reset time.
Optionally, the valve 10 is a one-way valve.
An oil inlet of the check valve is communicated with the piston accommodating chamber 31, and an oil outlet of the check valve is communicated with the first oil chamber 21. The use of the check valve allows the flow rate in one direction to be controlled even if the flow rate of the hydraulic oil flowing from the first oil chamber 21 into the piston accommodating chamber 31 is controlled to be zero. When the oil cylinder needs to be opened, hydraulic oil cannot pass through the flow passage 22, enters the first oil cavity 21 and further enters the piston cavity, and pushes the piston to move towards the rear end cover 60; when the oil cylinder needs to be reset, the piston rod moves towards the front end cover 20 under the action of an external load, and at the moment, hydraulic oil flows through the flow passage 22 at a proper flow rate, so that the oil return speed is increased, and the time required by the oil cylinder resetting is shortened. By adopting the one-way valve, the valve 10 is controlled to be closed in the process of opening the oil cylinder, and the valve 10 is opened in the process of oil return, so that the operation steps are simplified.
Optionally, the valve 10 is a one-way throttle valve.
Through the one-way throttle valve, the one-way flow of the hydraulic oil can be adjusted only when needed, and the proper adjustment of the resetting speed of the oil cylinder is realized.
Optionally, the valve 10 is removably mounted to the front end cap 20. This allows the valve 10 to be easily disassembled for maintenance and replacement.
Optionally, a valve receiving groove is formed on the front end cap 20, the valve receiving groove communicates with the flow passage 22, and the valve 10 is inserted into the valve receiving groove. Through valve 10 with the valve holding tank is pegged graft and is realized valve 10's quick assembly disassembly, further improves work efficiency.
Optionally, the receiving groove extends in a radial direction of the cylinder barrel 30. For the extending direction that makes the holding tank slope in the axial of cylinder 30, make the extending direction perpendicular to radial then can reduce the degree of depth of holding tank, and then reduce the amount of processing to front end housing 20, reduce the processing degree of difficulty and process time.
Optionally, the valve 10 has a hand-held end 11, and the hand-held end 11 protrudes from the outer surface of the front end cap 20. When the valve 10 is replaced or repaired, a worker can hold the hand-held end 11 to operate, and the hand-held end 11 protrudes out of the outer surface of the front end cover 20, so that the operation is more convenient.
In the embodiment of the application, the pneumatic valve 10 can be adopted as the valve 10, so that the automatic control of the oil cylinder is facilitated, and the working efficiency is improved. Of course, when the valve 10 is a throttle valve, a manually controlled throttle valve may also be used.
Another aspect of the present application provides a cylinder, which includes a piston rod 40 and the cylinder body provided in the embodiment of the present application, wherein the piston rod 40 is installed in the piston rod accommodating cavity, and the piston 50 is installed in the piston accommodating cavity 31.
The hydro-cylinder that this application embodiment provided has adopted the hydro-cylinder body that this application embodiment provided, through the design to this circulation passageway 22, has increased the oil return speed of hydraulic oil when the hydro-cylinder resets, and then has shortened the reset time of hydro-cylinder, has improved the work efficiency of hydro-cylinder.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The oil cylinder body is characterized by comprising a front end cover (20) and a cylinder barrel (30); a piston accommodating cavity (31) is formed in the cylinder barrel (30), and a first oil cavity (21) is formed in the front end cover (20); a piston rod accommodating cavity is further formed in the front end cover (20), and the piston accommodating cavity (31) penetrates through the front end cover (20) in the axial direction of the cylinder barrel (30) so that the first oil cavity (21) is communicated with the piston accommodating cavity (31) through the piston rod accommodating cavity;
a circulation passage (22) is further formed in the front end cover (20), and the circulation passage (22) is communicated with the first oil chamber (21) and the piston accommodating chamber (31) so that hydraulic oil can flow from the piston accommodating chamber (31) into the first oil chamber (21) through the circulation passage (22).
2. The cylinder block according to claim 1, characterized in that a valve (10) is installed in the flow passage (22) to restrict the flow rate of the hydraulic oil in the flow passage (22).
3. A cylinder block according to claim 2, characterized in that the valve (10) is a throttle valve.
4. A cylinder block according to claim 2, characterized in that the valve (10) is a one-way valve.
5. The cylinder block according to claim 2, characterized in that the valve (10) is a one-way throttle valve.
6. A cylinder block according to claim 2, characterized in that the valve (10) is detachably mounted on the front cover (20).
7. The cylinder block according to claim 6, wherein a valve receiving groove is formed on the front end cap (20), the valve receiving groove communicating with the flow passage (22), and the valve (10) is inserted into the valve receiving groove.
8. A cylinder block according to claim 7, characterized in that the receiving groove extends in the radial direction of the cylinder barrel (30).
9. The cylinder block according to claim 7, characterized in that the valve (10) has a hand-held end (11), the hand-held end (11) protruding from an outer surface of the front end cover (20).
10. Cylinder, characterized in that it comprises a cylinder body according to any one of claims 1-9 and a piston rod, said piston rod (40) being mounted in said piston rod receiving chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020622656.8U CN211975577U (en) | 2020-04-23 | 2020-04-23 | Oil cylinder body and oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020622656.8U CN211975577U (en) | 2020-04-23 | 2020-04-23 | Oil cylinder body and oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211975577U true CN211975577U (en) | 2020-11-20 |
Family
ID=73345963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020622656.8U Active CN211975577U (en) | 2020-04-23 | 2020-04-23 | Oil cylinder body and oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211975577U (en) |
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2020
- 2020-04-23 CN CN202020622656.8U patent/CN211975577U/en active Active
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