CN217481654U - Buffer-adjustable oil cylinder - Google Patents
Buffer-adjustable oil cylinder Download PDFInfo
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- CN217481654U CN217481654U CN202220814840.1U CN202220814840U CN217481654U CN 217481654 U CN217481654 U CN 217481654U CN 202220814840 U CN202220814840 U CN 202220814840U CN 217481654 U CN217481654 U CN 217481654U
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Abstract
The application relates to the technical field of oil cylinders, in particular to a buffer-adjustable oil cylinder which comprises an oil cylinder and a buffer device, wherein the oil cylinder comprises a cavity, an oil outlet channel and a fixing groove, the oil outlet channel and the fixing groove are arranged above the cavity, an oil outlet is formed in the cavity, and the fixing groove is formed between the oil outlet channel and the oil outlet channel; locate buffer in the fixed slot and include: the valve core comprises an oil passing groove and a valve core head which are arranged at one end of the valve core; the valve core shaft sleeve is embedded into one end of the valve core, which passes through the oil groove; the adjusting spring is embedded and arranged on the outer surface of the valve core shaft sleeve; the valve core sleeve is nested on the fixed groove, the lower part of the valve core sleeve is elastically connected with the adjusting spring, and the valve core head is in threaded connection with the valve core sleeve. According to the oil cylinder, the oil passing amount is controlled by adjusting the valve core, the oil outlet accuracy of the oil cylinder is improved, and the oil outlet speed is reduced; the valve core shaft sleeve is arranged to prevent oil from flowing backwards, and air is isolated in a use gap, so that oil pollution in the cylinder is further reduced.
Description
Technical Field
The application relates to the technical field of oil cylinders, in particular to an oil cylinder with adjustable buffering.
Background
The oil cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and makes linear reciprocating motion (or swinging motion). The oil cylinder is basically composed of a cylinder body, an end cover, a piston rod, a sealing device, a buffering device and an exhaust device. The buffer oil cylinder is one of various oil cylinders, and the traditional buffer oil cylinder is controlled by a valve to open and close and regulate the flow in the oil output process. The accuracy of the valve for controlling the oil quantity is low, and the valve is not suitable for the accurate output of a small oil cylinder; no buffer action exists between the oil outlets, so that the output speed of the oil is too high under the action of the piston, and certain potential safety hazards are caused; and the oil flows backwards after entering the oil outlet pipe, so that the oil cylinder is easily polluted.
SUMMERY OF THE UTILITY MODEL
Additional features and advantages of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings hereof.
The utility model provides an aim at to above-mentioned problem, provides an hydro-cylinder with adjustable buffering, can solve oil mass control accuracy low, oil output speed is too fast, the problem of oil pollution in easy refluence and the use of oil.
The application provides a buffer-adjustable oil cylinder which comprises an oil cylinder and a buffer device, wherein the oil cylinder comprises a cavity, an oil outlet channel and a fixing groove, the oil outlet channel and the fixing groove are arranged above the cavity, an oil outlet is formed in the cavity, and the fixing groove is formed between the oil outlet and the oil outlet channel; locate the buffer in the fixed slot and include: the regulating valve comprises a valve core, a valve core shaft sleeve, a regulating spring, a valve core sleeve and a nut fixedly arranged on a valve core head, wherein the valve core comprises an oil passing groove arranged at one end of the valve core and the valve core head provided with an external spiral structure, and the oil passing groove is arranged above an oil outlet; the valve core shaft sleeve is embedded into one end of the oil passing groove on the valve core; one end of the adjusting spring is nested on the outer surface of the valve core shaft sleeve; the valve core sleeve is nested on the fixed groove, the lower part of the valve core sleeve is nested with the other end of the adjusting spring, and the valve core head is in threaded connection with the valve core sleeve.
Among the technical scheme of this application embodiment, the oily volume of mistake of buffering is controlled to the size that exposes the valve core axle sleeve through the oily groove of mistake on the control valve core, and the valve core axle sleeve has certain resistance to the flow of oil to make the flow of oil have the unidirectionality, when the adjustment buffering speed, prevent oil refluence and impurity entering hydro-cylinder.
In some embodiments, one end of the inner hole of the valve core shaft sleeve, which is close to the oil outlet, is provided with a slope, and the diameter of the slope is larger than that of the oil outlet. The oil is drained to the inclined surface, the acting force of the oil on the valve core shaft sleeve is increased, and the valve core shaft sleeve is enabled to be moved more easily.
In some embodiments, a groove is preformed in the cartridge head. The groove provides a plurality of stress points, so that the groove and the nut are matched with each other, and the tightness of the valve core can be controlled more easily.
In some embodiments, the middle of the valve core is provided with a limiting bulge. The limiting bulge prevents the valve core from falling off in the moving process, so that the inside of the buffer device is polluted.
In some embodiments, one end surface of the oil passing groove is communicated with the oil outlet, and the other end surface of the oil passing groove is an arc-shaped end surface. When the oil passing groove discharges oil, the air pressure in the buffer device is balanced.
In some embodiments, a spool cavity is prefabricated on the spool sleeve, and the spool is displaced along the spool cavity. The valve core cavity provides a valve core moving space.
In some embodiments, the damping device comprises an O-ring, the O-ring comprises a first O-ring and a second O-ring, and the first O-ring is hermetically mounted on one side of the limiting protrusion. The first O-shaped gaskets prevent oil from entering the valve core cavity from two sides of the valve core and affecting the moving distance of the valve core.
In some embodiments, a second O-ring is sealingly mounted to the cartridge housing. The second O-shaped ring fills a gap between the valve core sleeve and the fixed groove, and prevents the valve core sleeve from falling off and impurities from entering the valve core cavity.
Through adopting foretell technical scheme, the beneficial effect of this application is:
1. the oil passing amount of the buffer is controlled by controlling the size of the oil passing groove on the valve core to expose the valve core shaft sleeve, the accuracy of the oil outlet amount of the oil cylinder is improved, the oil outlet speed is reduced, and the potential safety hazard is reduced.
2. Through setting up the valve core axle sleeve, make the flow of oil have the unidirectionality, prevent the oil refluence, the isolated air in the clearance of using simultaneously further reduces the pollution of jar interior oil.
3. The oil outlet is sealed for the second time by adjusting the valve core, so that the air pollution in the pipe is prevented.
4. The buffer device and the oil cylinder can be detached, so that the oil cylinder is convenient to replace and inspect, the cost of the oil cylinder is reduced, and the service life is prolonged.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Clearly, such objects and other objects of the present application will become more apparent after a detailed description of the preferred embodiments thereof as illustrated in the various figures and drawings.
These and other objects, features and advantages of the present application will become more apparent from the following detailed description of one or more preferred embodiments, which is to be read in connection with the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application and not to limit the application.
In the drawings, like parts are designated with like reference numerals, and the drawings are schematic and not necessarily drawn to scale.
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only one or several embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to such drawings without creative efforts.
FIG. 1 is a partial cross-sectional view of a cushion adjustable cylinder according to some embodiments of the present application;
FIG. 2 is a schematic diagram of a valve core structure of a damping adjustable cylinder according to some embodiments of the present disclosure;
FIG. 3 is a partial cross-sectional view of a spool sleeve of a cushion adjustable cylinder according to some embodiments of the present application.
Description of the main reference numerals:
1, a cavity;
11 oil outlet;
2 an oil outlet channel;
3, fixing the groove;
4, a valve core;
41 an oil passing groove; 42 grooves; 43 a limit bulge; 44 a valve core head;
5, a valve core shaft sleeve;
51, a bevel;
6, adjusting a spring;
7, a valve core sleeve;
71 a spool cavity;
8, a nut;
9O-shaped ring;
91 a first O-ring; 92 second O-ring.
Detailed Description
The following detailed description will be provided with reference to the drawings and examples to explain how to apply the technical means to solve the technical problems and to achieve the technical effects. It should be noted that, as long as there is no conflict, the embodiments and the features of the embodiments in the present application may be combined with each other, and the technical solutions formed are all within the scope of the present application.
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of the specific details or with other methods described herein.
Referring to fig. 1, fig. 1 is a partial cross-sectional view of a cushion adjustable cylinder according to some embodiments of the present application.
According to some embodiments of the application, the application provides a buffer-adjustable oil cylinder, which comprises an oil cylinder and a buffer device, wherein the oil cylinder comprises a cavity 1, an oil outlet channel 2 and a fixing groove 3, the oil outlet channel 2 and the fixing groove 3 are arranged above the cavity 1, an oil outlet 11 is arranged on the cavity 1, and the fixing groove 3 is arranged between the oil outlet 11 and the oil outlet channel 2; the buffer device provided in the fixing groove 3 includes: the oil-passing valve comprises a valve core 4, a valve core shaft sleeve 5, an adjusting spring 6, a valve core sleeve 7 and a nut 8 fixedly arranged on a valve core head 44, wherein the valve core 4 comprises an oil-passing groove 41 arranged at one end of the valve core 4 and the valve core head 44 provided with an external spiral structure, and the oil-passing groove 41 is arranged above an oil outlet 11; the valve core shaft sleeve 5 is embedded and arranged at one end of the oil passing groove 41 on the valve core 4; one end of the adjusting spring 6 is nested on the outer surface of the valve core shaft sleeve 5; the valve core sleeve 7 is nested on the fixed groove 3, the lower part of the valve core sleeve 7 is nested with the other end of the adjusting spring 6, and the valve core head 44 is in threaded connection with the valve core sleeve 7.
In the technical scheme of this application embodiment, drive case 4 and oil-out 11 through adjusting nut 8 and keep fixed distance to adjust the oil mass, oil flows out from oil-out 11 under the effect of piston, and when the gap in the case axle sleeve 5 was filled up to oil, case axle sleeve 5 compressed adjusting spring 6 moved up, further put through oil-out 11 and play oil passageway 2. The distance from the valve core 4 to the oil outlet 11 is adjusted to limit the size of an oil outlet, so that the oil passing amount is accurately controlled, the adjusting spring 6 is arranged to indirectly provide oil resistance, the flowing speed of oil is reduced, the potential safety hazard is reduced, the valve core shaft sleeve 5 can be opened only when the oil flows towards a fixed direction, and oil pollution in the cylinder caused by backflow of the oil in the oil outlet channel 2 is effectively prevented.
Referring to fig. 3, fig. 3 is a partial cross-sectional view of a spool sleeve of a cushion adjustable cylinder according to some embodiments of the present disclosure.
According to some embodiments of the present application, optionally, an end of the inner bore of the spool sleeve 5 near the oil outlet 11 is provided with an inclined surface 51, and a diameter of the inclined surface 51 is larger than a diameter of the oil outlet 11. The inclined plane 51 in the valve core shaft sleeve 5 enables a triangular space to exist in the valve core 4 and the valve core shaft sleeve 5, when the space is filled with oil, the valve core shaft sleeve 5 can move upwards due to the fluidity of the oil, and the switch between the oil outlet 11 and the oil outlet channel 2 is opened. When oil discharge is stopped, the valve core sleeve shaft 5 returns to the original position, and oil backflow and air pollution are prevented.
Referring to fig. 2, fig. 2 is a schematic view illustrating a valve core structure of a damping adjustable cylinder according to some embodiments of the present application.
According to some embodiments of the present application, the groove 42 is optionally preformed on the valve core head 44. The groove 42 can be in a straight line shape or a cross shape, and when oil does not flow out, the valve core 4 is screwed by a screwdriver matched with the nut 8, so that impurities in air are prevented from entering secondarily.
According to some embodiments of the present application, optionally, a limiting protrusion 43 is provided in the middle of the valve core 4. The limit protrusion 43 limits the maximum distance that the spool 4 moves, preventing the spool 4 from falling off or the oil from leaking due to an excessively large moving distance.
According to some embodiments of the present application, optionally, one end surface of the oil passing groove 41 is communicated with the oil outlet 11, and the other end surface of the oil passing groove 41 is an arc end surface. The oil groove 41 can balance the air pressure in the buffer device, and the arc-shaped surface reduces the impact force of oil on the groove body.
According to some embodiments of the present application, optionally, the spool housing 7 is prefabricated with a spool chamber 71, and the spool 4 is displaced along the spool chamber 71. The spool chamber 71 provides a moving space of the spool 4 in the sealed damper device.
According to some embodiments of the present application, optionally, the buffering means comprises an O-ring 9, the O-ring 9 comprises a first O-ring 91 and a second O-ring 91, and the first O-ring 91 is sealingly mounted on one side of the retainer protrusion 43. The O-shaped ring 9 plays a role in sealing the device. The first O-ring prevents oil from blocking the spool chamber 71, causing the cushioning device to fail.
According to some embodiments of the present application, optionally, the second O-ring 91 is sealingly mounted on the spool sleeve 7. The valve core 4 sleeve is tightly connected with the fixed groove 3 through the second O-shaped ring 91, so that the valve core sleeve 7 is fixed, and air pollution is prevented.
Referring again to fig. 1-3, the present application provides a cushioning adjustable cylinder. This hydro-cylinder includes hydro-cylinder and buffer, and the hydro-cylinder includes cavity 1, oil outlet channel 2 and fixed slot 3, is equipped with oil-out 11 on the cavity 1, and oil outlet channel 2 locates the top of cavity 1, and fixed slot 3 locates between oil-out 11 and the oil outlet channel 2, locates the buffer in the fixed slot 3 and includes: the valve core comprises a valve core 4, a valve core shaft sleeve 5, an adjusting spring 6, a valve core sleeve 7 and a nut 8.
When oil is to be output, the nut 8 is rotated, the nut 8 drives the valve core 4 to move upwards to be separated from the oil outlet 11, at the moment, the oil flows out from a gap between the valve core 4 and the oil outlet 11, the space of the inclined plane 51 in the valve core shaft sleeve 5 is filled, due to the fluidity of the oil, the valve core shaft sleeve 5 moves upwards to compress the adjusting spring 6, the oil outlet 11 and the oil outlet channel 2 are communicated, and the oil enters the oil transportation channel. The nut 8 is readjusted according to the requirement, the distance from the valve core 4 to the oil outlet 11 is changed, and the amount of the oil passing can be adjusted. After oil transportation stops, the adjusting spring 6 rebounds, at the moment, the valve core shaft sleeve 5 resets, the channel between the oil outlet channel 2 and the oil outlet 11 is cut off, oil in the space of the inclined plane 51 flows back into the cavity 1, and the valve core 4 is screwed down.
It is to be understood that the embodiments disclosed herein are not limited to the particular process steps or materials disclosed herein, but rather, are extended to equivalents thereof as would be understood by those of ordinary skill in the relevant art. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting.
Reference in the specification to "an embodiment" means that a particular feature, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. Thus, the appearances of the phrase or "an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment.
Furthermore, the described features or characteristics may be combined in any other suitable manner in one or more embodiments. In the above description, certain specific details are provided, such as thicknesses, amounts, etc., to provide a thorough understanding of embodiments of the present application. One skilled in the relevant art will recognize, however, that the application may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth.
Claims (8)
1. The utility model provides a hydro-cylinder with adjustable buffering, its characterized in that, includes hydro-cylinder and buffer, the hydro-cylinder includes cavity (1), oil outlet channel (2) and fixed slot (3), be equipped with oil-out (11) on cavity (1), oil outlet channel (2) are located the top of cavity (1), fixed slot (3) are located oil-out (11) with between oil outlet channel (2), buffer locates in fixed slot (3), wherein buffer includes:
the valve core (4) comprises an oil passing groove (41) and a valve core head (44), the oil passing groove (41) is formed in one end of the valve core (4), an external spiral structure is arranged at the other end of the valve core (4), and the oil passing groove (41) is formed above the oil outlet (11);
the valve core shaft sleeve (5) is embedded and installed at one end of the oil passing groove (41) on the valve core (4);
one end of the adjusting spring (6) is nested on the outer surface of the valve core shaft sleeve (5);
the valve core sleeve (7) is nested on the fixed groove (3), the lower part of the valve core sleeve (7) is nested with the other end of the adjusting spring (6), and the valve core head (44) is in threaded connection with the valve core sleeve (7);
and a nut (8) fixedly mounted on the valve core head (44).
2. The shock-adjustable oil cylinder according to claim 1, characterized in that an end of the inner bore of the valve spool sleeve (5) near the oil outlet (11) is provided with a slope (51), and the diameter of the slope (51) is larger than that of the oil outlet (11).
3. The cushioning adjustable ram according to claim 1, wherein the spool head (44) is pre-formed with a groove (42).
4. The cushioning adjustable oil cylinder according to claim 1, characterized in that a limiting bulge (43) is arranged in the middle of the valve core (4).
5. The shock-adjustable oil cylinder according to claim 1, wherein one end face of the oil passing groove (41) is communicated with the oil outlet (11), and the other end face of the oil passing groove (41) is an arc-shaped end face.
6. The cushioning adjustable oil cylinder according to claim 1, characterized in that a valve core cavity (71) is prefabricated on the valve core sleeve (7), and the valve core (4) can displace in the valve core cavity (71).
7. The cushion-adjustable oil cylinder as claimed in claim 4, wherein the cushion device further comprises an O-ring (9), the O-ring (9) comprises a first O-ring (91) and a second O-ring (92), and the first O-ring (91) is hermetically mounted on one side of the limiting protrusion (43).
8. The cushion adjustable cylinder as claimed in claim 7, wherein the second O-ring (92) is sealingly mounted on the spool sleeve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220814840.1U CN217481654U (en) | 2022-04-09 | 2022-04-09 | Buffer-adjustable oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220814840.1U CN217481654U (en) | 2022-04-09 | 2022-04-09 | Buffer-adjustable oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217481654U true CN217481654U (en) | 2022-09-23 |
Family
ID=83307904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220814840.1U Active CN217481654U (en) | 2022-04-09 | 2022-04-09 | Buffer-adjustable oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217481654U (en) |
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2022
- 2022-04-09 CN CN202220814840.1U patent/CN217481654U/en active Active
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