CN211231088U - Novel plunger cylinder - Google Patents
Novel plunger cylinder Download PDFInfo
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- CN211231088U CN211231088U CN201921765118.8U CN201921765118U CN211231088U CN 211231088 U CN211231088 U CN 211231088U CN 201921765118 U CN201921765118 U CN 201921765118U CN 211231088 U CN211231088 U CN 211231088U
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Abstract
The utility model relates to a plunger type cylinder equipment technical field provides a novel plunger type cylinder, including cylinder body, piston rod, direction and oil inlet, the piston rod slides and pegs graft on the inner wall of cylinder body, is provided with first ring channel on the piston rod, and has cup jointed the piston support ring in the first ring channel, and the other end of piston support ring is contradicted the cylinder body; the partial inner wall of direction is fixed cup joints on the outer wall of cylinder body, and the junction of direction and cylinder body is provided with first O type circle, and first O type circle joint is in the second ring channel of seting up on the direction inner wall. The utility model overcomes prior art's is not enough, reasonable in design, and compact structure has solved current cylinder body and the big problem that causes the damage easily of piston rod frictional force, the utility model discloses a simple structure combination can reduce frictional force, improves life, when back pressure system damages simultaneously, also can protect piston rod and cylinder body, improves the life of plunger cylinder, has very strong practicality.
Description
Technical Field
The utility model relates to a plunger cylinder equipment technical field, concretely relates to novel plunger cylinder.
Background
Plunger cylinder refers to a form of construction of a hydraulic cylinder that can only achieve movement in one direction. At present, in the hydraulic technical field, the plunger cylinder is very applicable, and as the requirement on the sealing performance of the plunger cylinder is higher, a large number of sealing devices are usually added between the opening of the cylinder body and the piston rod in order to improve the sealing performance, the sealing devices are very easy to damage the opening of the cylinder body under the condition of long-term friction, and once the opening of the cylinder body is damaged, the whole cylinder body needs to be replaced, so that great economic loss is caused.
When the back pressure system is in failure, the plunger returns quickly to be in direct contact with the cylinder seat, strong collision is generated, huge sound is generated, and the service life of the hydraulic cylinder is influenced.
In addition, the friction force between the plunger and the cylinder body of the traditional plunger cylinder is large, and high-frequency friction can generate a large amount of heat when the traditional plunger cylinder is used for a long time, so that the local deformation of the cylinder body wall is easily caused, and the service life is influenced.
To this end, we propose a new plunger cylinder.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a novel plunger cylinder has overcome prior art not enough, reasonable in design, and compact structure has solved current cylinder body and the big problem that causes the damage easily of piston rod frictional force, the utility model discloses a simple structure combination can reduce frictional force, improves life, when back pressure system damages simultaneously, also can protect piston rod and cylinder body, improves the life of plunger cylinder, has very strong practicality.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a novel plunger cylinder comprises a cylinder body, a piston rod, a guide part and an oil inlet, wherein the piston rod is inserted into the inner wall of the cylinder body in a sliding manner, a first annular groove is formed in the piston rod, a piston support ring is sleeved in the first annular groove, and the other end of the piston support ring is abutted against the cylinder body;
part of the inner wall of the guide is fixedly sleeved on the outer wall of the cylinder body, a first O-shaped ring is arranged at the joint of the guide and the cylinder body, the first O-shaped ring is clamped in a second annular groove formed in the inner wall of the guide, the other part of the inner wall of the guide is sleeved on the piston rod in a sliding manner, two third annular grooves are formed in one end, close to the piston rod, of the guide, a dust ring and a second O-shaped ring are respectively arranged in the two third annular grooves, the dust ring and the second O-shaped ring are both sleeved on the piston rod, and the dust ring is positioned at the right end of the second O-shaped ring;
an oil inlet is fixedly inserted into one end, far away from the bottom wall of the cylinder body, of the piston rod, two third O-shaped rings are arranged between the oil inlet and the piston rod, and the two third O-shaped rings are clamped in fourth annular grooves formed in the oil inlet;
the inner bottom wall of the cylinder body is connected with a wave spring, and the inner side wall of the piston rod is connected with a clamping ring corresponding to the wave spring.
Further, still include the steel wire jump ring, the steel wire jump ring sets up between cylinder body and piston rod, and the steel wire jump ring cup joints in the fifth ring channel of seting up on the piston rod, and the steel wire jump ring is contactless with the cylinder body.
Furthermore, the piston rod further comprises a U-shaped sealing ring, the U-shaped sealing ring is arranged between the guide and the piston rod, and the U-shaped sealing ring is clamped in a sixth annular groove formed in the guide.
Furthermore, the outer wall of the cylinder body is sleeved with a fixing ring.
Furthermore, the bottom wall of the cylinder body is provided with an air outlet, and the air outlet is inserted with a plug in a threaded manner.
Furthermore, an explosion-proof valve is arranged at one end of the oil inlet, which is positioned in the inner cavity of the piston rod.
(III) advantageous effects
The embodiment of the utility model provides a novel plunger cylinder. The method has the following beneficial effects:
1. the friction force between the opening of the cylinder body and the piston rod can be reduced, and the service life is prolonged. Through setting up the direction, can reduce the friction between cylinder body and the piston rod, with the friction between cylinder body and the piston rod, change the friction between direction and the piston rod, even the damage appears in the direction, change the direction again, can reduce economic loss, improve plunger cylinder's life.
2. It is possible to prevent the cylinder and the piston rod from being protected when the back pressure system fails. When the backpressure system breaks down, when the piston rod returned to in the cylinder body fast, the rand can conflict the ripples spring in advance this moment, and the ripples spring can cushion the impact force rapidly at the in-process of compression, and explosion-proof valve can close the hydraulic pressure oil circuit automatically simultaneously, makes the piston rod stop, can not fall fast, prevents to damage cylinder body and piston rod, reduces the impact force of piston rod and cylinder body collision to play the effect of protection to cylinder body and piston rod.
3. The friction between the cylinder body and the piston rod can be reduced, the friction between the piston rod and the guide can be reduced, and the service life is prolonged. The piston support ring can reduce the friction between the cylinder body and the piston rod, and the second O-shaped ring can reduce the friction between the guide rod and the piston rod, so that the service life of the guide rod and the service life of the piston rod are prolonged.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic view of the sectional structure of the present invention.
In the figure: the anti-explosion piston comprises a cylinder body 1, a piston rod 2, a steel wire clamp spring 3, a piston support ring 4, a guide 5, a first O-shaped ring 6, a guide support ring 7, a U-shaped seal ring 8, a dust-proof ring 9, an oil inlet 10, a fixing ring 11, a plug 12, a second O-shaped ring 13, a third O-shaped ring 14, a wave spring 15, a clamping ring 16 and an anti-explosion valve 17.
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. 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.
Referring to the attached drawings 1-2, the novel plunger cylinder comprises a cylinder body 1, a piston rod 2, a guide 5 and an oil inlet 10, wherein the piston rod 2 is inserted into the inner wall of the cylinder body 1 in a sliding mode, a first annular groove is formed in the piston rod 2, a piston support ring 4 is sleeved in the first annular groove, the other end of the piston support ring 4 abuts against the cylinder body 1, friction between the cylinder body 1 and the piston rod 2 can be reduced, and the service life is prolonged.
In the embodiment, as shown in fig. 1-2, a part of the inner wall of the guide 5 is sleeved on the cylinder body 1 through a thread, the moving direction of the piston rod 2 is conveniently adjusted through the guide 5, a first O-ring 6 is arranged at the joint of the guide 5 and the cylinder body 1, the first O-ring 6 can play a role of isolating and sealing, the first O-ring 6 is clamped in a second annular groove formed on the inner wall of the guide 5, the other part of the inner wall of the guide 5 is sleeved on the piston rod 2 in a sliding manner, the friction between the cylinder body 1 and the piston rod 2 can be reduced by arranging the guide 5, the friction between the cylinder body 1 and the piston rod 2 is converted into the friction between the guide 5 and the piston rod 2, even if the guide 5 is damaged, the guide 5 is replaced again, the economic loss can be reduced, the service life of the plunger cylinder is prolonged, one end of the, and be provided with dust ring 9 and second O type circle 13 in two third ring channels respectively, dust ring 9 and second O type circle 13 all cup joint on piston rod 2, and dust ring 9 is located the right-hand member of second O type circle 13, and dust ring 9 can play dirt-proof effect, and second O type circle 13 is located between direction 5 and piston rod 2 simultaneously, can reduce the friction between direction 5 and the piston rod 2, improves the life of direction 5 and piston rod 2.
In this embodiment, as shown in fig. 1-2, an oil inlet 10 is inserted into one end of the piston rod 2, which is far away from the bottom wall of the cylinder body 1, and hydraulic oil enters and exits through the oil inlet 10, so as to achieve the telescopic effect, two third O-rings 14 are arranged between the oil inlet 10 and the piston rod 2, and the two third O-rings 14 are all clamped in a fourth annular groove formed in the oil inlet 10, so that the sealing effect can be improved through the two third O-rings 14, and the hydraulic oil is prevented from flowing out.
In this embodiment, as shown in fig. 1, be connected with ripples spring 15 on the interior diapire of cylinder body 1, and be connected with rand 16 corresponding with ripples spring 15 on the inside wall of piston rod 2, when backpressure system broke down, when piston rod 2 returned to in the cylinder body 1 fast, rand 16 can conflict ripples spring 15 in advance this moment, ripples spring 15 can cushion the impact force rapidly at the in-process of compression, reduce the impact force of piston rod 2 with the collision of cylinder body 1, thereby play the effect of protection to cylinder body 1 and piston rod 2, ripples spring elasticity is effectual simultaneously, installation space is little, long service life, can use for a long time.
In this embodiment, as shown in fig. 1, still include steel wire jump ring 3, steel wire jump ring 3 sets up between cylinder body 1 and piston rod 2, and steel wire jump ring 3 cup joints in the fifth annular groove of seting up on piston rod 2, and steel wire jump ring 3 and cylinder body 1 contactless, when piston rod 2 outwards extends, steel wire jump ring 3 and direction 5 contact simultaneously can prevent that piston rod 2 from rushing out cylinder body 1, plays certain limiting displacement.
In this embodiment, as shown in fig. 1, the piston rod further includes a U-shaped sealing ring 8, the U-shaped sealing ring 8 is disposed between the guide 5 and the piston rod 2, and the U-shaped sealing ring 8 is clamped in a sixth annular groove formed in the guide 5, so that the sealing performance between the guide 5 and the piston rod 2 is improved again by disposing the U-shaped sealing ring 8.
In this embodiment, as shown in fig. 1 and 2, the outer wall of the cylinder body 1 is sleeved with a fixing ring 11, so that the cylinder body 1 can be conveniently and fixedly installed through the fixing ring 11.
In this embodiment, as shown in fig. 1 and 2, be provided with the venthole on the diapire of cylinder body 1, and the screw thread grafting has plug 12 on the venthole, through setting up the venthole, can conveniently discharge the air in the cylinder body 1, can seal the venthole through plug 12 simultaneously.
In this embodiment, as shown in fig. 1, an explosion-proof valve 17 is disposed at one end of the oil inlet 10 located in the inner cavity of the piston rod 2, and when the piston rod 2 rapidly returns to the cylinder 1, the explosion-proof valve 17 automatically closes the hydraulic oil path to stop the piston rod 2, so that the piston rod 2 does not rapidly fall down, and the cylinder 1 and the piston rod 2 are prevented from being damaged, and the model of the explosion-proof valve 17 is VUBA 1415/1615.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. The utility model provides a novel plunger cylinder, includes cylinder body, piston rod, direction and oil inlet, its characterized in that: the piston rod is inserted on the inner wall of the cylinder body in a sliding mode, a first annular groove is formed in the piston rod, a piston support ring is sleeved in the first annular groove, and the other end of the piston support ring abuts against the cylinder body;
part of the inner wall of the guide is fixedly sleeved on the outer wall of the cylinder body, a first O-shaped ring is arranged at the joint of the guide and the cylinder body, the first O-shaped ring is clamped in a second annular groove formed in the inner wall of the guide, the other part of the inner wall of the guide is sleeved on the piston rod in a sliding manner, two third annular grooves are formed in one end, close to the piston rod, of the guide, a dust ring and a second O-shaped ring are respectively arranged in the two third annular grooves, the dust ring and the second O-shaped ring are both sleeved on the piston rod, and the dust ring is positioned at the right end of the second O-shaped ring;
an oil inlet is fixedly inserted into one end, far away from the bottom wall of the cylinder body, of the piston rod, two third O-shaped rings are arranged between the oil inlet and the piston rod, and the two third O-shaped rings are clamped in fourth annular grooves formed in the oil inlet;
the inner bottom wall of the cylinder body is connected with a wave spring, and the inner side wall of the piston rod is connected with a clamping ring corresponding to the wave spring.
2. The new plunger cylinder as set forth in claim 1, characterized in that: the piston rod is sleeved with the steel wire clamp spring, and the steel wire clamp spring is arranged between the cylinder body and the piston rod and is not in contact with the cylinder body.
3. The new plunger cylinder as set forth in claim 1, characterized in that: the guide piston rod is characterized by further comprising a U-shaped sealing ring, the U-shaped sealing ring is arranged between the guide and the piston rod, and the U-shaped sealing ring is clamped in a sixth annular groove formed in the guide.
4. The new plunger cylinder as set forth in claim 1, characterized in that: the outer wall of the cylinder body is sleeved with a fixing ring.
5. The new plunger cylinder as set forth in claim 1, characterized in that: the bottom wall of the cylinder body is provided with an air outlet, and the air outlet is inserted with a plug in a threaded manner.
6. The new plunger cylinder as set forth in claim 1, characterized in that: and an explosion-proof valve is arranged at one end of the oil inlet, which is positioned in the inner cavity of the piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921765118.8U CN211231088U (en) | 2019-10-21 | 2019-10-21 | Novel plunger cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921765118.8U CN211231088U (en) | 2019-10-21 | 2019-10-21 | Novel plunger cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211231088U true CN211231088U (en) | 2020-08-11 |
Family
ID=71932332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921765118.8U Active CN211231088U (en) | 2019-10-21 | 2019-10-21 | Novel plunger cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211231088U (en) |
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2019
- 2019-10-21 CN CN201921765118.8U patent/CN211231088U/en active Active
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