CN208749716U - A kind of spiral expanding hydraulic cylinder - Google Patents
A kind of spiral expanding hydraulic cylinder Download PDFInfo
- Publication number
- CN208749716U CN208749716U CN201821441065.XU CN201821441065U CN208749716U CN 208749716 U CN208749716 U CN 208749716U CN 201821441065 U CN201821441065 U CN 201821441065U CN 208749716 U CN208749716 U CN 208749716U
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- China
- Prior art keywords
- piston
- screw rod
- spiral
- tube
- capping
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of spiral expanding hydraulic cylinders, including cylinder body, inner chamber of cylinder block, piston, sealing ring, cavity, guide post, spring, connecting rod, handle, first screw rod, spiral-tube, second screw rod, hollow groove, capping, fixing seat, screw rod, locking nut, fuel feed hole and oil outlet, inner chamber of cylinder block is equipped on the inside of cylinder body, piston is equipped in inner chamber of cylinder block, piston two sides are equipped with sealing ring, cavity is equipped in piston left end, guide post is equipped in cavity, spring is tied on the outside of guide post, connecting rod is equipped at piston Left-side center, connecting rod outer end is connected with handle, piston right end is equipped with the first screw rod, first screw rod right end is equipped with spiral-tube, the second screw rod is equipped on the outside of spiral-tube, hollow groove is equipped on the inside of spiral-tube, cylinder body right end is equipped with capping, capping is equipped with fuel feed hole and oil outlet, capping is equipped with through-hole, silk is equipped in through-hole Bar, screw rod left end are arranged in fixing seat.
Description
Technical field
The utility model relates to a kind of technical field of hydraulic equipment, specifically a kind of spiral expanding hydraulic cylinder.
Background technique
Telescoping hydraulic cylinder is the hydraulic cylinder with multi-stage sleeve shape piston rod of available longer impulse stroke, is stretched
Formula hydraulic cylinder is also known as multistage hydraulic cylinder, telescoping hydraulic cylinder be as made of two or more piston-type hydraulic cylinders suit, it is previous
The piston rod of grade piston cylinder is the cylinder barrel of rear stage piston cylinder, and screw hydraulic cylinder has small in size, light-weight, compact-sized spy
Point, compared with vane-type swaying motor, its output torque is big, and volumetric efficiency is high.
All existence form is single on the whole for existing spiral expanding hydraulic cylinder, fabricates the problems such as precision is low；It is existing
Spiral expanding hydraulic cylinder works when, if piston directly with the end cap of hydraulic cylinder bump against, biggish shock loading can be generated, to liquid
Pressure system has an adverse effect, and can damage end cap；Piston and inner wall of cylinder inside existing spiral expanding hydraulic stem is straight
Contact, is easy to produce abrasion to piston after long-time service, service life is short.
Utility model content
It is mentioned above in the background art to solve the purpose of this utility model is to provide a kind of spiral expanding hydraulic cylinder
Problem.
To achieve the above object, the utility model provides the following technical solutions: a kind of spiral expanding hydraulic cylinder, including cylinder
Body, inner chamber of cylinder block, piston, sealing ring, cavity, guide post, spring, connecting rod, handle, the first screw rod, spiral-tube, the second screw rod,
Hollow groove, capping, fixing seat, screw rod, locking nut, fuel feed hole and oil outlet, the cylinder body inside is equipped with inner chamber of cylinder block, described
Piston is equipped in inner chamber of cylinder block, the piston two sides are equipped with sealing ring, and cavity is equipped in piston left end, is equipped with and leads in the cavity
Column, the guide post outside are tied with spring, are equipped with connecting rod at the piston Left-side center, the connecting rod outer end is connected with handle
Hand, the piston right end are equipped with the first screw rod, and the first screw rod right end is equipped with spiral-tube, is equipped with second on the outside of the spiral-tube
Screw rod, spiral-tube inside are equipped with hollow groove, and the cylinder body right end is equipped with capping, and the capping is equipped with fuel feed hole and oil outlet,
Capping is equipped with through-hole, and screw rod is equipped in through-hole, and the screw rod left end is arranged in fixing seat.
As a further solution of the present invention: sealing ring is pasted onto inner chamber of cylinder block inner wall, convenient for carrying out to sealing ring
Replacement.
As a further solution of the present invention: guide post, spring, the first screw rod, spiral-tube and the second screw rod are all equipped with
Two, convenient for guaranteeing the balance and stability of hydraulic stem.
As a further solution of the present invention: being equipped with circular hole at piston Left-side center, internal screw thread is equipped in circular hole, even
Extension bar right end is equipped with threaded joints, and piston is connected with connecting rod by screw thread, convenient for by carrying out manually to piston position
Adjustment.
Fixing seat is socketed on the outside of cylinder body as a further solution of the present invention, and fixing seat right side is equipped with
Circular hole, circular hole is interior to be equipped with internal screw thread, and screw rod is connected by screw thread with fixing seat, can be consolidated according to the actual situation to cylinder body
It is fixed.
Compared with prior art, the utility model has the beneficial effects that by handle can to piston rise position into
Row manual manipulation promotes precision；Spring can avoid damage inner cavity to piston is reduced to the shock loading of cavity；In piston
Outside is equipped with sealing ring, wears excessive, extension piston service life after avoiding long-time use convenient for protection piston.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of spiral expanding hydraulic cylinder.
Fig. 2 is a kind of front view of spiral expanding hydraulic cylinder.
Fig. 3 is a kind of left view of spiral expanding hydraulic cylinder.
In figure: cylinder body 1, inner chamber of cylinder block 2, piston 3, sealing ring 4, cavity 5, guide post 6, spring 7, connecting rod 8, handle 9,
One screw rod 10, spiral-tube 11, the second screw rod 12, hollow groove 13, capping 14, fixing seat 15, screw rod 16, locking nut 17, oil inlet
Hole 18, oil outlet 19.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~3, in the utility model embodiment, a kind of spiral expanding hydraulic cylinder, including cylinder body 1, inner chamber of cylinder block
2, piston 3, sealing ring 4, cavity 5, guide post 6, spring 7, connecting rod 8, handle 9, the first screw rod 10, spiral-tube 11, the second screw rod
12, hollow groove 13, capping 14, fixing seat 15, screw rod 16, locking nut 17, fuel feed hole 18 and oil outlet 19, in the cylinder body 1
Side is equipped with inner chamber of cylinder block 2, and piston 3 is equipped in the inner chamber of cylinder block 2, and 3 two sides of piston are equipped with sealing ring 4, and sealing ring 4 is pasted
In 2 inner wall of inner chamber of cylinder block, convenient for being replaced to sealing ring 4, it is equipped with cavity 5 in 3 left end of piston, is equipped with and leads in the cavity 5
Column 6 is tied with spring 7 on the outside of the guide post 6, connecting rod 8 is equipped at 3 Left-side center of piston, is equipped at 3 Left-side center of piston
Circular hole, circular hole is interior to be equipped with internal screw thread, and 8 right end of connecting rod is equipped with threaded joints, and piston 3 is connected with connecting rod 8 by screw thread,
Convenient for by being adjusted manually to 3 position of piston, 8 outer end of connecting rod is connected with handle 9,3 right end of piston is equipped with
First screw rod 10,10 right end of the first screw rod are equipped with spiral-tube 11, are equipped with the second screw rod 12, guide post on the outside of the spiral-tube 11
6, there are two spring 7, the first screw rod 10, spiral-tube 11 and the second screw rod 12 are all set, convenient for guaranteeing the balance of hydraulic cylinder and steady
It is qualitative, hollow groove 13 is equipped on the inside of spiral-tube 11,1 right end of cylinder body is equipped with capping 14, and the capping 14 is equipped with fuel feed hole
18 and oil outlet 19, capping 14 is equipped with through-hole, and screw rod 16 is equipped in through-hole, and 16 left end of screw rod is arranged in fixing seat 15
Interior, fixing seat 15 is socketed in the outside of cylinder body 1, and 15 right side of fixing seat is equipped with circular hole, is equipped with internal screw thread in circular hole, screw rod 16 with
Fixing seat 15 is connected by screw thread, and cylinder body 1 can be fixed according to the actual situation.
The working principle of the utility model is: being equipped with circular hole at 3 Left-side center of piston, internal screw thread, connection are equipped in circular hole
8 right end of bar is equipped with threaded joints, and piston 3 is connected with connecting rod 8 by screw thread, convenient for pass through manually to 3 position of piston into
Row adjustment, 8 outer end of connecting rod are connected with handle 9, piston 3 can be pushed to move upwards by manual manipulation handle 9, can be accurate
Raised position, piston 3 push the first screw rod 10 moved upwards in spiral-tube 11,3 top of piston reach the second screw rod 12
When setting, limit can be played the role of to piston, when 18 oil inlet of fuel feed hole, hydraulic oil flows into inner chamber of cylinder block by fuel feed hole 18
In 2, the first screw rod 10 is stretched out from spiral-tube 11, and the hydraulic oil in inner chamber of cylinder block 2 is flowed out by oil outlet 19, and hydraulic oil pushes
Piston 3 moves downward, and spring 7 is equipped in cavity 5, when piston 3 is moved to close to the position of cylinder base, touches spring 7,
Movement velocity slows down, and plays buffer function, and 1 bottom of cylinder body can be effectively protected.
Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art
Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into
Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all
It is included within the scope of protection of this utility model.
Claims (5)
1. a kind of spiral expanding hydraulic cylinder, including cylinder body, inner chamber of cylinder block, piston, sealing ring, cavity, guide post, spring, connecting rod,
Handle, the first screw rod, spiral-tube, the second screw rod, hollow groove, capping, fixing seat, screw rod, locking nut, fuel feed hole and fuel-displaced
Hole, which is characterized in that be equipped with inner chamber of cylinder block on the inside of the cylinder body, be equipped with piston in the inner chamber of cylinder block, the piston two sides are set
There is sealing ring, cavity is equipped in piston left end, guide post is equipped in the cavity, is tied with spring, the piston on the outside of the guide post
Connecting rod is equipped at Left-side center, the connecting rod outer end is connected with handle, and the piston right end is equipped with the first screw rod, and described the
One screw rod right end is equipped with spiral-tube, and the second screw rod is equipped on the outside of the spiral-tube, is equipped with hollow groove, the cylinder body on the inside of spiral-tube
Right end is equipped with capping, and the capping is equipped with fuel feed hole and oil outlet, and capping is equipped with through-hole, and screw rod is equipped in through-hole, described
Screw rod left end is arranged in fixing seat.
2. a kind of spiral expanding hydraulic cylinder according to claim 1, which is characterized in that the sealing ring is pasted onto cylinder body
Cavity wall.
3. a kind of spiral expanding hydraulic cylinder according to claim 1, which is characterized in that the guide post, spring, the first spiral shell
There are two bar, spiral-tube and the second screw rod are all set.
4. a kind of spiral expanding hydraulic cylinder according to claim 1, which is characterized in that be equipped at the piston Left-side center
Circular hole, circular hole is interior to be equipped with internal screw thread, and connecting rod right end is equipped with threaded joints, and piston is connected with connecting rod by screw thread.
5. a kind of spiral expanding hydraulic cylinder according to claim 1, which is characterized in that the fixing seat is socketed in outside cylinder body
Side, and fixing seat right side is equipped with circular hole, is equipped with internal screw thread in circular hole, screw rod is connected with fixing seat by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821441065.XU CN208749716U (en) | 2018-09-04 | 2018-09-04 | A kind of spiral expanding hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821441065.XU CN208749716U (en) | 2018-09-04 | 2018-09-04 | A kind of spiral expanding hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208749716U true CN208749716U (en) | 2019-04-16 |
Family
ID=66081765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821441065.XU Expired - Fee Related CN208749716U (en) | 2018-09-04 | 2018-09-04 | A kind of spiral expanding hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208749716U (en) |
-
2018
- 2018-09-04 CN CN201821441065.XU patent/CN208749716U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190416 Termination date: 20210904 |