CN220365802U - Hydraulic cylinder body with high stability - Google Patents
Hydraulic cylinder body with high stability Download PDFInfo
- Publication number
- CN220365802U CN220365802U CN202322100583.2U CN202322100583U CN220365802U CN 220365802 U CN220365802 U CN 220365802U CN 202322100583 U CN202322100583 U CN 202322100583U CN 220365802 U CN220365802 U CN 220365802U
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- Prior art keywords
- cylinder body
- cylinder
- piston
- buffer block
- wall
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- 238000007789 sealing Methods 0.000 claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 17
- 239000010720 hydraulic oil Substances 0.000 abstract description 8
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 238000013016 damping Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a hydraulic cylinder body with high stability, which relates to the technical field of hydraulic pressure and comprises a cylinder body, a front cylinder cover arranged at one end of the cylinder body, a rear cylinder cover arranged at the other end of the cylinder body, a piston and a piston rod arranged in the cylinder body, a protecting sleeve and a buffer block, wherein the protecting sleeve is arranged in the cylinder body, the outer wall of the protecting sleeve is in interference fit with the inner wall of the cylinder body, the piston is arranged in the protecting sleeve in a sliding manner, the buffer block is clamped in one end of the protecting sleeve, one end of the piston rod is connected with the middle part of one end of the piston, and the other end of the piston rod penetrates through the buffer block and is connected with the front cylinder cover. Through the arrangement of the protective sleeve, the oil pressure of hydraulic oil entering the cylinder body can be dispersed by the protective sleeve, and the piston can be prevented from directly contacting with the inner wall of the cylinder body, so that the inner wall of the cylinder body is prevented from being worn by the sliding of the piston, and the protection of the cylinder body is realized; through the setting of buffer block, avoid the piston to touch the inner wall of cylinder body, avoid producing abnormal sound, also can realize sealing the one end of lag simultaneously.
Description
Technical Field
The utility model relates to the technical field of hydraulic pressure, in particular to a hydraulic cylinder body with high stability.
Background
The hydraulic cylinder is a hydraulic executive component which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion), the hydraulic cylinder consists of a cylinder body, a piston movably connected inside the cylinder body, a piston rod and other parts, the piston drives the piston rod to perform reciprocating motion by feeding oil to the front end and the rear end of the cylinder body in different time periods, and the bottom of the cylinder body and the outer end of the piston rod are respectively connected with an external device so as to drive the external device to perform reciprocating motion. The reciprocating motion of the piston rod is realized through oil feeding, and when the piston and the piston rod are in a static state, the piston and the piston rod can be ensured to be in a stable state only because the pressure in the cylinder body is kept continuously after oil feeding.
The prior art patent 201910576903.7 discloses a hydraulic cylinder body with high operation stability, which comprises a cylinder body, a piston sleeved on the inner wall of the cylinder body and a piston rod fixedly connected with the front end of the piston, wherein the middle part of the front end of the cylinder body is fixedly sleeved with a sealing sleeve, the first screw rod is in threaded connection with a rotary annular seat and the second screw rod is in threaded connection with an arc plate, the first screw rod and the second screw rod play a guiding role in the movement of the piston and the piston rod, and when the piston stops moving, the screw rod is connected with the piston rod to have certain self-locking property, so that the stability of the piston and the piston rod is effectively improved.
In the Chinese patent, when the hydraulic pressure of the front oil inlet and the rear oil inlet suddenly increases, the operation of a piston in the cylinder body is easy to be unstable, so that the piston is easy to collide with the inner wall of the front end of the cylinder body, the front cylinder cover is easy to touch the outer wall of the front end of the cylinder body, abnormal sound can occur, and the service life of the cylinder body can be influenced; second, since the piston is in direct contact with the inner wall of the cylinder, the reciprocating movement of the piston also causes abrasion of the inner wall of the cylinder for a long time.
Disclosure of Invention
The utility model aims to provide a hydraulic cylinder body with high stability, which is used for solving the technical problems.
The technical scheme adopted by the utility model is as follows:
the utility model provides a high hydraulic cylinder body of stability, includes the cylinder body, locates the preceding cylinder cap of cylinder body one end and locate the back cylinder cap of cylinder body other end, the inside of cylinder body is equipped with piston and piston rod, still includes lag and buffer block, the inside of cylinder body is equipped with the lag, the outer wall of lag with the inner wall interference fit of cylinder body, the piston slides and locates in the lag, the buffer block joint is in the one end inside of lag, the one end of piston rod with the one end middle part of piston is connected, the other end of piston rod passes the buffer block and with preceding cylinder cap is connected.
Preferably, the protective sleeve is made of stainless steel or aluminum alloy.
Preferably, the middle part of one end of the cylinder body is provided with a first round hole, a sealing ring is arranged in the first round hole, and the other end of the piston rod penetrates through the sealing ring and stretches out of the cylinder body.
Preferably, the outer peripheral wall of the buffer block is in sealing fit with the inner peripheral wall of the protective sleeve.
Preferably, a plurality of annular clamping grooves are formed in the peripheral wall of the buffer block.
As a further preferable mode, a plurality of clamping rings are arranged on the inner peripheral wall of one end of the protective sleeve, and the clamping rings are formed in the annular clamping grooves in an injection molding mode.
Preferably, the cylinder further comprises a rubber ring, wherein the rubber ring is arranged on the outer edge of one end of the cylinder body, a step groove is formed in the outer edge of one end, close to the cylinder body, of the front cylinder cover, and the step surface of the step groove can be propped against the rubber ring.
Preferably, the cylinder further comprises a rotary annular seat and a screw rod, wherein the middle part of the other end of the piston is connected with one end of the screw rod, the rotary annular seat is rotatably arranged in the other end of the cylinder body, and the other end of the screw rod penetrates through the rotary annular seat and is connected with the rear cylinder cover.
The technical scheme has the following advantages or beneficial effects:
according to the utility model, through the arrangement of the protective sleeve, the oil pressure of hydraulic oil entering the cylinder body can be dispersed by the protective sleeve, and the piston can be prevented from directly contacting with the inner wall of the cylinder body, so that the abrasion of the inner wall of the cylinder body caused by the sliding of the piston is avoided, and the protection of the cylinder body is realized; through the setting of buffer block, can avoid the piston to touch the inner wall of cylinder body, avoid producing abnormal sound, also can realize sealing the one end of lag simultaneously.
Drawings
FIG. 1 is a perspective view of a highly stable hydraulic cylinder of the present utility model;
FIG. 2 is a second perspective view of the hydraulic cylinder of the present utility model with high stability;
FIG. 3 is a schematic view showing the internal structure of a hydraulic cylinder having high stability in the present utility model;
fig. 4 is an enlarged view at a in fig. 3.
In the figure: 1. a cylinder; 2. a front cylinder cover; 3. a rear cylinder cover; 4. a piston; 5. a piston rod; 6. a protective sleeve; 7. a buffer block; 8. a first round hole; 9. a seal ring; 10. an annular clamping groove; 11. a clasp; 12. a rubber ring; 13. a step groove; 14. rotating the annular seat; 15. a screw; 16. fixing the annular seat; 17. a bearing; 18. damping shock absorber; 19. a front oil inlet and outlet; 20. and then enters and exits the oil hole.
Description of the embodiments
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the indicated apparatus or element must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.
In the description of the present utility model, it should be noted that unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
FIG. 1 is a perspective view of a highly stable hydraulic cylinder of the present utility model; FIG. 2 is a second perspective view of the hydraulic cylinder of the present utility model with high stability; FIG. 3 is a schematic view showing the internal structure of a hydraulic cylinder having high stability in the present utility model; fig. 4 is an enlarged view of a portion in fig. 3, please refer to fig. 1 to 4, which shows a preferred embodiment, and shows a hydraulic cylinder with high stability, including a cylinder body 1, a front cylinder cover 2 disposed at one end of the cylinder body 1, and a rear cylinder cover 3 disposed at the other end of the cylinder body 1, wherein a piston 4 and a piston rod 5 are disposed in the cylinder body 1, and further including a protecting sleeve 6 and a buffer block 7, the protecting sleeve 6 is disposed in the cylinder body 1, an outer wall of the protecting sleeve 6 is in interference fit with an inner wall of the cylinder body 1, the piston 4 is slidably disposed in the protecting sleeve 6, the buffer block 7 is clamped in one end of the protecting sleeve 6, one end of the piston rod 5 is connected with one end middle of the piston 4, and the other end of the piston rod 5 passes through the buffer block 7 and is connected with the front cylinder cover 2. In this embodiment, referring to fig. 1, a rear cylinder cover 3 is fixedly connected with a cylinder body 1, a rear cylinder cover 3 and a front cylinder cover 2 are used for being connected with an external device, a front oil inlet and outlet port 19 and a rear oil inlet and outlet port 20 are formed in the cylinder body 1, wherein the front oil inlet and outlet port is close to one end of the cylinder body 1, the rear oil inlet and outlet port 20 is close to the other end of the cylinder body 1, hydraulic oil can be pumped into the cylinder body 1 through the front oil inlet and outlet port 19 and the rear oil inlet and outlet port 20 and located on two sides of a piston 4, and is used for pushing the piston 4 to slide back and forth, so that a piston rod 5 is driven to move, and the piston rod 5 drives the front cylinder cover 2 to drive the external device to move.
In this embodiment, referring to fig. 3, a protecting sleeve 6 made of stainless steel or aluminum alloy is disposed inside the cylinder 1, when hydraulic oil enters the cylinder 1, the protecting sleeve 6 can disperse the oil pressure, and can also avoid the piston 4 from directly contacting with the inner wall of the cylinder 1, so that the inner wall of the cylinder 1 is worn when the piston 4 is placed to slide, and the service life of the cylinder 1 is prolonged.
Secondly, can avoid leading to piston 4 direct and cylinder body 1 one end inner wall contact and produce abnormal sound when the oil pressure is too high through buffer block 7's setting, also can realize protecting cylinder body 1's one end inner wall.
Further, as a preferred embodiment, the middle part of one end of the cylinder body 1 is provided with a first round hole 8, a sealing ring 9 is arranged in the first round hole 8, and the other end of the piston rod 5 passes through the sealing ring 9 and extends out of the cylinder body 1. The sealing ring 9 is used for sealing the cylinder body 1, so that hydraulic oil leakage is avoided.
Further, as a preferred embodiment, a plurality of annular clamping grooves 10 are formed in the outer peripheral wall of the buffer block 7. A plurality of clamping rings 11 are arranged on the inner peripheral wall of one end of the protective sleeve 6, and the clamping rings 11 are injection molded in the annular clamping grooves 10. In this embodiment, the protecting sleeve 6 and the buffer block 7 can be fixed by the clamping ring 11 and the clamping groove, and then be connected and fixed by injection molding, so that stable installation of the buffer block 7 can be realized. When hydraulic oil promotes piston 4 to touch buffer block 7, buffer block 7 can realize the buffering to piston 4, avoids buffer block 7 to touch cylinder body 1 one end inner wall and produces abnormal sound.
Further, as a preferred embodiment, the outer peripheral wall of the buffer block 7 is in sealing engagement with the inner peripheral wall of the protection sleeve 6. In other embodiments, the buffer block 7 may be directly in sealing fit with the inner wall of the protecting sleeve 6, and one end surface of the buffer block 7 may abut against one end inner wall of the cylinder 1, so as to avoid leakage of hydraulic oil.
Further, as a preferred embodiment, the cylinder further comprises a rubber ring 12, the outer edge of one end of the cylinder body 1 is provided with the rubber ring 12, the outer edge of one end of the front cylinder cover 2, which is close to the cylinder body 1, is provided with a step groove 13, and the step surface of the step groove 13 can be propped against the rubber ring 12. Referring to fig. 3, when the hydraulic oil pushes the piston 4 to move toward the rear cylinder cover 3, the front end cover can contact with the rubber ring 12, so that abnormal sound caused by the front cylinder cover 2 touching the cylinder body 1 is avoided. Wherein, referring to fig. 3, the step surface refers to a side wall of the step groove 13 away from the rubber ring 12.
Further, as a preferred embodiment, the cylinder further comprises a rotary annular seat 14 and a screw 15, wherein the middle part of the other end of the piston 4 is connected with one end of the screw 15, the rotary annular seat 14 is rotatably arranged in the other end of the cylinder body 1, and the other end of the screw 15 passes through the rotary annular seat 14 and is connected with the rear cylinder cover 3. In the embodiment, the device further comprises a fixed annular seat 16, a bearing 17 and a damping shock absorber 18, wherein the rotary annular seat 14 is in threaded connection with the screw 15, the rotary annular seat 14 is arranged in the bearing 17, and the bearing 17 is arranged in the other end of the cylinder body 1; the rotary annular seat 14 is rotatable relative to the bearing 17, while the fixed annular seat 16 is provided on the side of the bearing 17 adjacent to the piston 4, two damping dampers 18 are provided on the side of the fixed annular seat 16 adjacent to the piston 4, one damping damper 18 being connected to the fixed annular seat 16, the other damping damper 18 being connected to the side of the piston 4 adjacent to the fixed annular seat 16. By the cooperation of the screw 15 and the rotary annular seat 14, the stability of the piston 4 and the piston rod 5 can be ensured when the piston 4 stops running.
The foregoing description is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the scope of the utility model, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present utility model, and are intended to be included within the scope of the present utility model.
Claims (8)
1. The utility model provides a high hydraulic cylinder body of stability, includes the cylinder body, locates the preceding cylinder cap of cylinder body one end and locate the back cylinder cap of cylinder body other end, the inside of cylinder body is equipped with piston and piston rod, its characterized in that still includes lag and buffer block, the inside of cylinder body is equipped with the lag, the outer wall of lag with the inner wall interference fit of cylinder body, the piston slides and locates in the lag, the buffer block joint is in the one end of lag is inside, the one end of piston rod with the one end middle part of piston is connected, the other end of piston rod passes the buffer block and with preceding cylinder cap is connected.
2. The high stability hydraulic cylinder of claim 1 wherein said jacket is made of stainless steel or aluminum alloy.
3. The high-stability hydraulic cylinder body according to claim 1, wherein the middle part of one end of the cylinder body is provided with a first round hole, a sealing ring is arranged in the first round hole, and the other end of the piston rod penetrates through the sealing ring and extends out of the cylinder body.
4. The high stability hydraulic cylinder of claim 1 wherein the outer peripheral wall of the bumper block sealingly engages the inner peripheral wall of the jacket.
5. The high-stability hydraulic cylinder as claimed in claim 1, wherein a plurality of annular clamping grooves are formed in the peripheral wall of the buffer block.
6. The high-stability hydraulic cylinder as claimed in claim 5, wherein a plurality of snap rings are provided on an inner peripheral wall of one end of the protective sleeve, and the snap rings are injection molded in the annular clamping grooves.
7. The high-stability hydraulic cylinder as claimed in claim 1, further comprising a rubber ring, wherein the rubber ring is provided on the outer edge of one end of the cylinder, a stepped groove is provided on the outer edge of one end of the front cylinder cover, which is close to the cylinder, and a stepped surface of the stepped groove is capable of being abutted against the rubber ring.
8. The high stability hydraulic cylinder of claim 1, further comprising a rotating ring-shaped seat and a screw, wherein the middle of the other end of the piston is connected with one end of the screw, the rotating ring-shaped seat is rotatably provided inside the other end of the cylinder, and the other end of the screw passes through the rotating ring-shaped seat and is connected with the rear cylinder cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322100583.2U CN220365802U (en) | 2023-08-07 | 2023-08-07 | Hydraulic cylinder body with high stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322100583.2U CN220365802U (en) | 2023-08-07 | 2023-08-07 | Hydraulic cylinder body with high stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220365802U true CN220365802U (en) | 2024-01-19 |
Family
ID=89516087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322100583.2U Active CN220365802U (en) | 2023-08-07 | 2023-08-07 | Hydraulic cylinder body with high stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220365802U (en) |
-
2023
- 2023-08-07 CN CN202322100583.2U patent/CN220365802U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |