CN213808291U - Multistage speed regulation hydraulic cylinder - Google Patents
Multistage speed regulation hydraulic cylinder Download PDFInfo
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- CN213808291U CN213808291U CN202022813892.0U CN202022813892U CN213808291U CN 213808291 U CN213808291 U CN 213808291U CN 202022813892 U CN202022813892 U CN 202022813892U CN 213808291 U CN213808291 U CN 213808291U
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Abstract
The utility model provides a multistage speed governing pneumatic cylinder, relates to pneumatic cylinder technical field, including the installation base, one side fixedly connected with master cylinder body of installation base, the top of master cylinder body is provided with first hydraulic fluid port, and the bottom of master cylinder body is provided with the second hydraulic fluid port, all be provided with return oil pipe on first hydraulic fluid port and the second hydraulic fluid port, fixed mounting has the check valve on the return oil pipe, one side fixed mounting of installation base has first oil pump and second oil pump, the inside of master cylinder body is provided with first piston, the first spring of one side fixedly connected with of first piston, and the first piston rod of the opposite side fixedly connected with of first piston. The utility model discloses in, use through the cooperation of first oil pump, second oil pump, first hydraulic fluid port, second hydraulic fluid port and master cylinder body, can realize the speed governing of pneumatic cylinder, convenient to use through the hydraulic oil volume of controlling first oil pump and second oil pump input in to the master cylinder body.
Description
Technical Field
The utility model relates to a pneumatic cylinder technical field particularly, relates to a multistage speed governing pneumatic cylinder.
Background
The telescopic hydraulic cylinder is also called as a multistage hydraulic cylinder, which is formed by sleeving two-stage or multistage piston cylinders and mainly comprises a cylinder cover, a cylinder barrel, a sleeve, a piston and other parts, wherein the cylinder is a hydraulic actuating element for realizing reciprocating motion and swinging motion less than 360 degrees in a hydraulic transmission system.
However, the existing multistage hydraulic cylinder is troublesome in operation when in speed regulation, so that the use is inconvenient, and the speed of a piston rod of the multistage hydraulic cylinder is not fast enough when in return, so that the working efficiency is reduced.
In view of this, the present application is specifically made.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multistage speed governing pneumatic cylinder to solve the problem that proposes among the above-mentioned background art.
The embodiment of the utility model is realized like this:
a multi-stage speed regulation hydraulic cylinder comprises an installation base, wherein a main cylinder body is fixedly connected to one side of the installation base, a first oil port is formed in the top of the main cylinder body, a second oil port is formed in the bottom of the main cylinder body, oil return pipelines are arranged on the first oil port and the second oil port respectively, a one-way valve is fixedly installed on each oil return pipeline, a first oil pump and a second oil pump are fixedly installed on one side of the installation base, a first piston is arranged inside the main cylinder body, a first spring is fixedly connected to one side of the first piston, a first piston rod is fixedly connected to the other side of the first piston, a second piston is arranged inside the first piston rod, a second piston rod is fixedly connected to the second piston, a connector is fixedly connected to one end, away from the second piston, of the second piston rod, oil inlet holes are symmetrically formed in the top and the bottom of the first piston rod, and a first spring is arranged between the second piston and the first piston, the top and the bottom of the first piston rod are symmetrically provided with grooves, and the two grooves are fixedly connected with pore channels.
Preferably, all be provided with defeated oil pipe on first oil pump and the second oil pump, first hydraulic fluid port passes through defeated oil pipe with first oil pump and is connected, and the second hydraulic fluid port passes through defeated oil pipe with the second oil pump and is connected, first hydraulic fluid port and second hydraulic fluid port all communicate with the inside of the master cylinder body.
Preferably, the outer surface of the first piston is fixedly connected with a first sealing gasket, the first piston is connected with the inner wall of the main cylinder body in a clearance fit manner, the first piston is connected with the inner wall of the main cylinder body through a first spring, the first piston rod is a cylinder body of the second piston and the second piston rod, the outer surface of the second piston is fixedly connected with a second sealing gasket, the second piston is connected with the inner wall of the first piston rod in a clearance fit manner, and the second piston is connected with the first piston through the first spring.
Preferably, the second piston is located between the oil inlet hole and the groove, the oil inlet hole is matched with the groove, the groove is of an annular structure, one end of the pore channel is communicated with the groove, the other end of the pore channel is communicated with the inside of the main cylinder body, the pore channel is of an L-shaped structure, and the pore channel, the groove and the oil inlet hole are communicated with the inside of the main cylinder body and the first piston rod.
Preferably, the connector and the second piston rod are integrally formed, the first oil pump is located above the main cylinder body, and the second oil pump is located below the main cylinder body.
Preferably, first oil pump and second oil pump all are external to have the power, and first oil pump and second oil pump all pass through wire electric connection with the power.
The embodiment of the utility model provides a beneficial effect is:
the embodiment of the utility model provides a multistage through first oil pump, the second oil pump, first hydraulic fluid port, the cooperation of second hydraulic fluid port and master cylinder body is used, can realize the speed governing of pneumatic cylinder through the hydraulic oil volume of controlling first oil pump and second oil pump input in to the master cylinder body, and is simple in operation, high durability and convenient use, through first spring, first piston, the second piston, the cooperation of first piston rod and second piston rod is used, at first piston and second piston removal in-process, will stretch first spring and first spring respectively, under the spring action, first spring and first spring drive first piston and the quick return of second piston respectively, and the work efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the operation of the first piston rod according to the embodiment of the present invention;
fig. 3 is a schematic structural diagram of the operation of the second piston rod according to the embodiment of the present invention.
Icon: 1. installing a base; 2. a first oil pump; 3. a first oil port; 4. an oil return conduit; 5. a one-way valve; 6. a main cylinder body; 7. a first spring; 8. a first piston rod; 9. a duct; 10. a groove; 11. a second piston rod; 12. a connector; 13. a second piston; 14. an oil inlet hole; 15. a first piston; 16. a second oil pump; 17. a second oil port; 18. a first spring.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "parallel," "perpendicular," and the like do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 invention can be understood in specific cases to those skilled in the art.
Examples
Referring to fig. 1-3, the present embodiment provides a multistage speed-regulating hydraulic cylinder, which includes an installation base 1, a main cylinder 6 fixedly connected to one side of the installation base 1, a first oil port 3 disposed at the top of the main cylinder 6, a second oil port 17 disposed at the bottom of the main cylinder 6, oil return pipes 4 disposed on the first oil port 3 and the second oil port 17, a check valve 5 fixedly disposed on the oil return pipe 4, a first oil pump 2 and a second oil pump 16 fixedly disposed at one side of the installation base 1, a first piston 15 disposed inside the main cylinder 6, a first spring 18 fixedly connected to one side of the first piston 15, a first piston rod 8 fixedly connected to the other side of the first piston 15, a second piston 13 disposed inside the first piston rod 8, a second piston rod 11 fixedly connected to the second piston 13, a connector 12 fixedly connected to one end of the second piston rod 11 far away from the second piston 13, oil inlet holes 14 are symmetrically formed in the top and the bottom of the first piston rod 8, a first spring 7 is arranged between the second piston 13 and the first piston 15, grooves 10 are symmetrically formed in the top and the bottom of the first piston rod 8, and pore channels 9 are fixedly connected to the two grooves 10.
Referring to fig. 1, 2 and 3, the first oil pump 2 and the second oil pump 16 are both provided with an oil delivery pipe, the first oil port 3 is connected with the first oil pump 2 through the oil delivery pipe, the second oil port 17 is connected with the second oil pump 16 through the oil delivery pipe, the first oil port 3 and the second oil port 17 are both communicated with the inside of the main cylinder body 6, and the speed of the hydraulic cylinder can be adjusted by controlling the hydraulic oil amount input from the first oil pump 2 and the second oil pump 16 into the main cylinder body 6 through the cooperation of the first oil pump 2, the second oil pump 16, the first oil port 3, the second oil port 17 and the main cylinder body 6, so that the hydraulic cylinder is convenient to use.
Referring to fig. 1, 2 and 3, a first sealing pad is fixedly connected to an outer surface of the first piston 15, the first piston 15 is connected to an inner wall of the main cylinder 6 in a clearance fit manner, the first piston 15 is connected to the inner wall of the main cylinder 6 by a first spring 18, the first piston rod 8 is a cylinder body of the second piston 13 and the second piston rod 11, a second sealing pad is fixedly connected to an outer surface of the second piston 13, the second piston 13 is connected to the inner wall of the first piston rod 8 in a clearance fit manner, the second piston 13 is connected to the first piston 15 by a first spring 7, the first spring 18, the first spring 7, the first piston 15, the second piston 13, the first piston rod 8 and the second piston rod 11 are used in a cooperation manner, the first spring 18 and the first spring 7 are respectively stretched during movement of the first piston 15 and the second piston 13, and the first spring 18 and the first spring 7 respectively drive the first piston 15 and the second piston 13 to return rapidly under the action of an elastic force, the working efficiency is improved.
Referring to fig. 1, 2 and 3, the second piston 13 is located between the oil inlet 14 and the groove 10, the oil inlet 14 is adapted to the groove 10, the groove 10 is of an annular structure, one end of the duct 9 is communicated with the groove 10, the other end of the duct 9 is communicated with the inside of the main cylinder 6, the duct 9 is of an "L" shaped structure, the duct 9, the groove 10 and the oil inlet 14 are communicated with the inside of the main cylinder 6 and the first piston rod 8, and the duct 9, the groove 10 and the oil inlet 14 are arranged to facilitate the communication between the inside of the main cylinder 6 and the first piston rod 8.
Referring to fig. 1, 2 and 3, the connector 12 and the second piston rod 11 are integrally formed, the first oil pump 2 is located above the main cylinder 6, the second oil pump 16 is located below the main cylinder 6, and the connector 12 is arranged to facilitate connection and fixation of the hydraulic cylinder and other connecting members.
Referring to fig. 1, 2 and 3, the first oil pump 2 and the second oil pump 16 are externally connected with a power supply, and the first oil pump 2 and the second oil pump 16 are electrically connected with the power supply through a lead, so that a power source can be provided for the operation of the hydraulic cylinder by arranging the first oil pump 2 and the second oil pump 16.
The utility model discloses a theory of operation is: in the operation process, the first oil pump 2 and the second oil pump 16 are started, the first oil pump 2 and the second oil pump 16 respectively inject hydraulic oil into the main cylinder body 6 through oil delivery pipes, the hydraulic oil cannot flow into the interior of the second piston rod 11 due to the limiting effect of the one-way valve 5, the hydraulic oil pushes the first piston 15 and the first piston rod 8 to move towards the direction far away from the mounting base 1 to realize first-stage sliding, when the first piston 15 moves between the two pore passages 9, the oil inlet hole 14 is communicated with the groove 10, so that the first piston rod 8 is communicated with the interior of the main cylinder body 6, the hydraulic oil enters the first piston rod 8 to further push the second piston 13 and the second piston rod 11 to move towards the direction far away from the mounting base 1 to realize second-stage sliding, when the first piston rod 8 and the second piston rod 11 need to be contracted, the first oil pump 2 and the second oil pump 16 are started to extract the hydraulic oil, at the moment, hydraulic oil in the main cylinder body 6 and the first piston rod 8 is partially extracted, the first piston 15 and the first piston rod 8 move towards the direction adjacent to the mounting base 1, at the moment, the main cylinder body 6 is not communicated with the inside of the first piston rod 8, only the first piston 15 and the first piston rod 8 contract, when the first piston 15 moves to the oil inlet 14 and is communicated with the oil return pipeline 4, the hydraulic oil in the first piston rod 8 can be discharged, secondary contraction is realized, in addition, a third piston and a third piston rod can be added in the second piston rod 11, more-stage contraction is realized, in the moving process of the first piston 15 and the second piston 13, the first spring 18 and the first spring 7 are respectively stretched, under the action of elastic force, the first spring 18 and the first spring 7 respectively drive the first piston 15 and the second piston 13 to quickly return, the working efficiency is improved, the first oil pump 2 and the second oil pump 16 are respectively connected through the first oil port 3 and the second oil port 17, the speed regulation of the hydraulic cylinder can be realized by controlling the hydraulic oil quantity input into the main cylinder body 6 by the first oil pump 2 and the second oil pump 16, and the use is convenient.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A multi-stage speed-regulating hydraulic cylinder is characterized by comprising an installation base, wherein a main cylinder body is fixedly connected to one side of the installation base, a first oil port is formed in the top of the main cylinder body, a second oil port is formed in the bottom of the main cylinder body, oil return pipelines are arranged on the first oil port and the second oil port respectively, a one-way valve is fixedly installed on each oil return pipeline, a first oil pump and a second oil pump are fixedly installed on one side of the installation base, a first piston is arranged inside the main cylinder body, a first spring is fixedly connected to one side of the first piston, a first piston rod is fixedly connected to the other side of the first piston, a second piston is arranged inside the first piston rod, a second piston rod is fixedly connected to the second piston, a connector is fixedly connected to one end, far away from the second piston, of the second piston rod, and oil inlet holes are symmetrically formed in the top and the bottom of the first piston rod, a first spring is arranged between the second piston and the first piston, grooves are symmetrically formed in the top and the bottom of the first piston rod, and pore channels are fixedly connected to the two grooves.
2. The multi-stage speed regulation hydraulic cylinder according to claim 1, wherein the first oil pump and the second oil pump are both provided with an oil delivery pipe, the first oil port is connected with the first oil pump through the oil delivery pipe, the second oil port is connected with the second oil pump through the oil delivery pipe, and the first oil port and the second oil port are both communicated with the inside of the main cylinder body.
3. The multi-stage speed regulation hydraulic cylinder according to claim 1, wherein a first sealing gasket is fixedly connected to the outer surface of the first piston, the first piston is connected with the inner wall of the main cylinder body in a clearance fit manner, the first piston is connected with the inner wall of the main cylinder body in a first spring manner, the first piston rod is a cylinder body of a second piston and a second piston rod, a second sealing gasket is fixedly connected to the outer surface of the second piston, the second piston is connected with the inner wall of the first piston rod in a clearance fit manner, and the second piston is connected with the first piston through the first spring.
4. The multi-stage speed-regulating hydraulic cylinder according to claim 1, wherein the second piston is located between an oil inlet and a groove, the oil inlet is matched with the groove, the groove is of an annular structure, one end of the pore channel is communicated with the groove, the other end of the pore channel is communicated with the inside of the main cylinder body, the pore channel is of an L-shaped structure, and the pore channel, the groove and the oil inlet are communicated with the inside of the main cylinder body and the first piston rod.
5. The multi-speed hydraulic cylinder according to claim 1, wherein the connector is integrally formed with the second piston rod, the first oil pump is located above the main cylinder body, and the second oil pump is located below the main cylinder body.
6. The multi-stage speed regulation hydraulic cylinder according to claim 1, wherein the first oil pump and the second oil pump are externally connected with a power supply, and the first oil pump and the second oil pump are electrically connected with the power supply through leads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022813892.0U CN213808291U (en) | 2020-11-30 | 2020-11-30 | Multistage speed regulation hydraulic cylinder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022813892.0U CN213808291U (en) | 2020-11-30 | 2020-11-30 | Multistage speed regulation hydraulic cylinder |
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| CN213808291U true CN213808291U (en) | 2021-07-27 |
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| CN202022813892.0U Active CN213808291U (en) | 2020-11-30 | 2020-11-30 | Multistage speed regulation hydraulic cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013380A (en) * | 2022-06-23 | 2022-09-06 | 苏州鑫旭合智能科技有限公司 | Double-stage adjustable large-stroke hydraulic cylinder |
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2020
- 2020-11-30 CN CN202022813892.0U patent/CN213808291U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013380A (en) * | 2022-06-23 | 2022-09-06 | 苏州鑫旭合智能科技有限公司 | Double-stage adjustable large-stroke hydraulic cylinder |
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