CN212377012U - Hollow single-rod piston type hydraulic oil cylinder - Google Patents
Hollow single-rod piston type hydraulic oil cylinder Download PDFInfo
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- CN212377012U CN212377012U CN202020602165.7U CN202020602165U CN212377012U CN 212377012 U CN212377012 U CN 212377012U CN 202020602165 U CN202020602165 U CN 202020602165U CN 212377012 U CN212377012 U CN 212377012U
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Abstract
The utility model is suitable for a hydraulic cylinder technical field provides a hollow single-rod piston type hydraulic cylinder, including a hydraulic cylinder body, a hydraulic cylinder end cover, a piston rod body and a shell, the piston rod body penetrates the shell and is connected with the inner wall of the penetrating part in a sliding way, the upper and lower parts of the left surface of the shell are bolted with fixed blocks, the surface of the hydraulic cylinder end cover is provided with a clamping groove matched with the fixed blocks for use; the utility model discloses have extra clean function, it can return the in-process at the piston rod and block the dust granule on surface, and reduce the influence of dust granule to the sealing washer, promote the life of sealing washer, some current hydraulic cylinder have been solved at the operation in-process, the dust granule that the piston rod surface is infected with easily makes the sealing washer receive wearing and tearing, cause sealing washer life to receive the problem of influence, and this hydraulic cylinder staff of being convenient for dismantles clean structure, promote this hydraulic cylinder's convenience.
Description
Technical Field
The utility model belongs to the technical field of hydraulic cylinder, especially, relate to a hollow single-rod piston hydraulic cylinder.
Background
The single-piston-rod hydraulic cylinder is a hydraulic cylinder with a piston rod only at one end, oil ports at the inlet and the outlet of the two ends of the single-piston-rod hydraulic cylinder can be communicated with pressure oil or return oil so as to realize bidirectional movement, the hollow single-rod piston type hydraulic cylinder refers to a hydraulic cylinder with a hollow piston rod structure, for example, the hydraulic cylinder is large, the piston rod is thick, the piston rod is hollow, the mass can be reduced, and the piston rod is prevented from being deformed under the action of.
Hollow single pole piston hydraulic cylinder is at the operation in-process, its piston rod can be infected with some dust particles inevitably, these dust particles can together get into hydraulic cylinder's inside at the piston rod in-process that contracts back to lead to the fact wearing and tearing to hydraulic cylinder's sealing washer, cause the life of sealing washer to receive the influence, the sealing washer needs to dismantle hydraulic cylinder at the change in-process simultaneously, it is very troublesome, for this reason we propose one kind have extra clean function, and reduce the influence of dust to the sealing washer, and be convenient for solve this problem to the hydraulic cylinder that clean structure was dismantled.
SUMMERY OF THE UTILITY MODEL
The utility model provides a hollow single-rod piston type hydraulic oil cylinder, which aims at solving the problem provided in the prior art.
The utility model is realized in such a way, a hollow single-rod piston type hydraulic oil cylinder comprises a hydraulic oil cylinder body, a hydraulic oil cylinder end cover, a piston rod body and a shell, wherein the piston rod body penetrates through the shell and is in sliding connection with the inner wall of the penetrating part, the upper part and the lower part of the left side surface of the shell are respectively bolted with a fixed block, the surface of the hydraulic oil cylinder end cover is provided with a clamping groove matched with the fixed block, the fixed block is in sliding connection with the inner wall of the clamping groove, the upper side and the lower side of the hydraulic oil cylinder end cover are respectively penetrated with a fixed rod, the surface of the fixed block is provided with a round hole, the fixed rod is in sliding connection with the inner wall of the round hole, the upper side and the lower side inside of the hydraulic oil cylinder end cover are respectively provided with an inner groove, the left side and the, the utility model discloses a piston rod of a motor vehicle engine, including casing, piston rod body, the inside of casing is provided with the rubber circle, the inner wall sliding connection of piston rod body and rubber circle, the equal fixedly connected with spliced pole in upper and lower both sides of rubber circle, and the spliced pole keeps away from the one end of rubber circle and the inner wall swing joint of casing.
Preferably, the upper side and the lower side of the shell are both in threaded connection with bolts, one end, away from the rubber ring, of the connecting column is provided with a threaded groove, and the bolts are in threaded connection with the inner wall of the threaded groove.
Preferably, an arc-shaped block is bolted to one end, far away from the end cover of the hydraulic oil cylinder, of the fixing rod, and a through hole is formed in the surface of the arc-shaped block.
Preferably, the inner cavity of the clamping groove is provided with a limiting groove, and one end of the fixing rod, which is far away from the arc-shaped block, is connected with the inner wall of the limiting groove in a sliding manner.
Preferably, the surfaces of the upper side and the lower side of the shell are provided with a plurality of leakage holes, and the radius of each leakage hole is 3-5 mm.
Preferably, the cross section of the inner groove is square, and the connecting block is connected with the inner wall of the inner groove in a sliding manner.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses have extra clean function, it can return the in-process at the piston rod and block the dust granule on surface, and reduce the influence of dust granule to the sealing washer, promote the life of sealing washer, some current hydraulic cylinder have been solved at the operation in-process, the dust granule that the piston rod surface is infected with easily makes the sealing washer receive wearing and tearing, cause sealing washer life to receive the problem of influence, and this hydraulic cylinder staff of being convenient for dismantles clean structure, promote this hydraulic cylinder's convenience.
Drawings
FIG. 1 is a front sectional view of the structure of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a perspective view of the housing of the present invention;
in the figure: 1. a hydraulic cylinder body; 2. a hydraulic cylinder end cover; 3. a housing; 4. a piston rod body; 5. a fixed block; 6. a card slot; 7. fixing the rod; 8. a circular hole; 9. an inner tank; 10. a spring; 11. connecting blocks; 12. a rubber ring; 13. connecting columns; 14. a thread groove; 15. a bolt; 16. an arc-shaped block; 17. a through hole; 18. a limiting groove; 19. and (4) a leak hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, the utility model provides a hollow single-rod piston hydraulic cylinder, which comprises a hydraulic cylinder body 1, a hydraulic cylinder end cover 2, a piston rod body 4 and a shell 3, wherein the piston rod body 4 penetrates the shell 3 and is connected with the inner wall of the penetrating part in a sliding way, the upper part and the lower part of the left side surface of the shell 3 are respectively bolted with a fixed block 5, the surface of the hydraulic cylinder end cover 2 is provided with a clamping groove 6 matched with the fixed block 5, the fixed block 5 is connected with the inner wall of the clamping groove 6 in a sliding way, the upper side and the lower side of the hydraulic cylinder end cover 2 are respectively provided with a fixed rod 7 in a penetrating way, the surface of the fixed block 5 is provided with a round hole 8, the fixed rod 7 is connected with the inner wall of the round hole 8 in a sliding way, the upper side and the lower, spring 10 is far away from the one end of connecting block 11 and the inner wall fixed mounting of inside groove 9, and the inside of casing 3 is provided with rubber circle 12, piston rod body 4 and the inner wall sliding connection of rubber circle 12, the equal fixedly connected with spliced pole 13 in upper and lower both sides of rubber circle 12, and the spliced pole 13 is kept away from the one end of rubber circle 12 and the inner wall swing joint of casing 3.
In this embodiment, this hydraulic cylinder has extra clean function, it can retract the in-process at the piston rod and block the dust granule on surface, and reduce the influence of dust granule to the sealing washer, promote the life of sealing washer, some current hydraulic cylinders have been solved at the operation in-process, the dust granule that the piston rod surface is infected with easily makes the sealing washer receive wearing and tearing, cause the sealing washer life to receive the problem of influence, and this hydraulic cylinder is convenient for the staff and dismantles clean structure, promote this hydraulic cylinder's convenience.
Further, the upper side and the lower side of the shell 3 are both in threaded connection with bolts 15, a thread groove 14 is formed in one end, away from the rubber ring 12, of the connecting column 13, and the bolts 15 are in threaded connection with the inner wall of the thread groove 14.
In the present embodiment, the threaded groove 14 and the bolt 15 are provided, so that the worker can attach and detach the connecting column 13 and the rubber ring 12, which facilitates the replacement work of the worker.
Furthermore, an arc-shaped block 16 is bolted to one end, far away from the hydraulic cylinder end cover 2, of the fixing rod 7, and a through hole 17 is formed in the surface of the arc-shaped block 16.
In this embodiment, through the setting of arc piece 16 and through-hole 17, the staff makes dead lever 7 relieve the spacing to fixed block 5 through pulling through-hole 17 and drive arc piece 16 and dead lever 7 together motion, is convenient for the staff to dismantle the operation to casing 3.
Furthermore, a limiting groove 18 is formed in the inner cavity of the clamping groove 6, and one end, far away from the arc-shaped block 16, of the fixing rod 7 is connected with the inner wall of the limiting groove 18 in a sliding mode.
In this embodiment, by the arrangement of the limiting groove 18, the fixing rod 7 can pass through the circular hole 8 and enter the limiting groove 18, so that the limiting effect of the fixing rod 7 is improved.
Furthermore, a plurality of leakage holes 19 are formed in the surfaces of the upper side and the lower side of the shell 3, and the radius of each leakage hole 19 is 3-5 mm.
In the present embodiment, the leakage hole 19 is provided to allow dust particles blocked by the rubber ring 12 to fall to the outside of the housing 3, thereby preventing excessive dust particles from accumulating inside the housing 3.
Furthermore, the section of the inner groove 9 is square, and the connecting block 11 is connected with the inner wall of the inner groove 9 in a sliding manner.
In the present embodiment, the design enables the connecting block 11 to be closely attached to the inner wall of the inner groove 9, which can prevent the fixing rod 7 from spinning, so as to prevent the spring 10 from bending and affecting the use.
The utility model discloses a theory of operation and use flow: when the hydraulic oil cylinder sealing ring works, if the surface of the piston rod body 4 is contaminated with dust particles, the dust particles can be driven to move together in the retraction process, and when the dust particles touch the rubber ring 12, the rubber ring 12 is tightly attached to the surface of the piston rod body 4, so that the dust particles cannot continuously move together with the piston rod body 4, the influence of the dust particles on the interior of the hydraulic oil cylinder body 1 is reduced, and the service life of the sealing ring in the hydraulic oil cylinder is prolonged; when the cleaning structure is disassembled, firstly, the through hole 17 is hooked by a hook, the arc-shaped blocks 16 on two sides move reversely, the fixing rod 7 drives the two fixing rods 7 to move reversely together, then the fixing rod 7 relieves the limitation on the round hole 8 and the fixing block 5, meanwhile, the shell 3 can move, then the shell 3 moves rightwards, the shell drives the rubber ring 12 to move rightwards together until the rubber ring 12 falls off from the surface of the piston rod body 4, then the bolts 15 on the upper side and the lower side are rotated, the two bolts 15 move reversely and break away from the inside of the thread groove 14, and then the connecting column 13 is taken down and the rubber ring 12 is replaced.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a hollow single pole piston hydraulic cylinder, includes hydraulic cylinder body (1), hydraulic cylinder end cover (2), piston rod body (4) and casing (3), its characterized in that: the piston rod body (4) penetrates through the shell (3) and is in sliding connection with the inner wall of the penetrating position, fixed blocks (5) are bolted at the upper position and the lower position of the left side surface of the shell (3), a clamping groove (6) matched with the fixed blocks (5) for use is formed in the surface of the hydraulic cylinder end cover (2), the fixed blocks (5) are in sliding connection with the inner wall of the clamping groove (6), fixing rods (7) are arranged on the upper side and the lower side of the hydraulic cylinder end cover (2) in a penetrating mode, round holes (8) are formed in the surface of the fixed blocks (5), the fixing rods (7) are in sliding connection with the inner wall of the round holes (8), inner grooves (9) are formed in the upper side and the lower side of the inner portion of the hydraulic cylinder end cover (2), connecting blocks (11) are bolted on the left side and the right side of the fixing rods, the inner wall fixed mounting of the one end of connecting block (11) and inside groove (9) is kept away from in spring (10), the inside of casing (3) is provided with rubber circle (12), the inner wall sliding connection of piston rod body (4) and rubber circle (12), equal fixedly connected with spliced pole (13) in the upper and lower both sides of rubber circle (12), and the inner wall swing joint of the one end of rubber circle (12) and casing (3) is kept away from in spliced pole (13).
2. A hollow single rod piston hydraulic ram as claimed in claim 1 wherein: the upper side and the lower side of the shell (3) are both in threaded connection with bolts (15), one end, far away from the rubber ring (12), of the connecting column (13) is provided with a threaded groove (14), and the bolts (15) are in threaded connection with the inner wall of the threaded groove (14).
3. A hollow single rod piston hydraulic ram as claimed in claim 1 wherein: an arc-shaped block (16) is bolted to one end, far away from the hydraulic oil cylinder end cover (2), of the fixing rod (7), and a through hole (17) is formed in the surface of the arc-shaped block (16).
4. A hollow single rod piston hydraulic ram as claimed in claim 3 wherein: the inner cavity of the clamping groove (6) is provided with a limiting groove (18), and one end of the fixing rod (7) far away from the arc-shaped block (16) is connected with the inner wall of the limiting groove (18) in a sliding mode.
5. A hollow single rod piston hydraulic ram as claimed in claim 1 wherein: the surface of the upper side and the lower side of the shell (3) are respectively provided with a plurality of leakage holes (19), and the radius of each leakage hole (19) is 3-5 mm.
6. A hollow single rod piston hydraulic ram as claimed in claim 1 wherein: the cross section of the inner groove (9) is square, and the connecting block (11) is connected with the inner wall of the inner groove (9) in a sliding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020602165.7U CN212377012U (en) | 2020-04-21 | 2020-04-21 | Hollow single-rod piston type hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020602165.7U CN212377012U (en) | 2020-04-21 | 2020-04-21 | Hollow single-rod piston type hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212377012U true CN212377012U (en) | 2021-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020602165.7U Active CN212377012U (en) | 2020-04-21 | 2020-04-21 | Hollow single-rod piston type hydraulic oil cylinder |
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| CN (1) | CN212377012U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027856A (en) * | 2021-03-12 | 2021-06-25 | 上海浩平机电设备有限公司 | Single-rod symmetrical hydraulic oil cylinder of electric hydrostatic actuator system |
-
2020
- 2020-04-21 CN CN202020602165.7U patent/CN212377012U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113027856A (en) * | 2021-03-12 | 2021-06-25 | 上海浩平机电设备有限公司 | Single-rod symmetrical hydraulic oil cylinder of electric hydrostatic actuator system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 214183 Yuqi street Nanlian village, Huishan District, Wuxi City, Jiangsu Province Patentee after: Wuxi Hongjin Intelligent Hydraulic Co.,Ltd. Address before: 214000 Nanlian village, Yuqi street, Huishan District, Wuxi City, Jiangsu Province Patentee before: WUXI HONGJIN HYDRAULIC MACHINERY Co.,Ltd. |
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| CP03 | Change of name, title or address |