CN110259761A - Anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure - Google Patents
Anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure Download PDFInfo
- Publication number
- CN110259761A CN110259761A CN201910635263.2A CN201910635263A CN110259761A CN 110259761 A CN110259761 A CN 110259761A CN 201910635263 A CN201910635263 A CN 201910635263A CN 110259761 A CN110259761 A CN 110259761A
- Authority
- CN
- China
- Prior art keywords
- guide ring
- piston rod
- hole
- displacement sensor
- hydraulic cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
Abstract
The present invention announces a kind of anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure, belongs to hydraulic cylinder technical field.Piston rod rear end shaft core position is provided with guiding blind hole, and piston rod guiding blind bore end is fixedly connected with middle guide ring；Guide rod is fixedly installed in cylinder bottom installation through-hole；Guide rod is hollow stem, and guide rod fits through the polygonal hole at middle guide ring center；Guide rod inner end has one section of entity section, is fixedly installed with interior guide ring on entity section periphery；It is fixed with displacement sensor on the outside of cylinder bottom, the detection bar in displacement sensor is located in guide rod.The maintenance and replacement of displacement sensor do not influence hydraulic cylinder itself in the present invention, guarantee that subsequent maintenance and repair is convenient and efficient；Guide ring, interior guide ring to cooperate with guide rod in use, and the guiding blind hole of piston rod is not necessarily to special processing process, enormously simplifies its procedure of processing, reduce processing cost.
Description
Technical field
The present invention relates to hydraulic cylinder technical field, specifically a kind of anti-rotation hydraulic cylinder piston rod displacement sensor installation knot
Structure.
Background technique
Hydraulic cylinder is the executive component that hydraulic energy is converted to linear motion mechanical energy, simple with drive mechanism, can
The features such as transmitting high-power function, using relatively broad in engineering machinery.More and more hydraulic cylinders are equipped with inbuilt displacement at present
The physical quantity displacement of hydraulic cylinder is converted into the numerical value that can be checked at any time by sensor.
Since hydraulic cylinder operating condition is complicated, displacement sensor often needs to maintenance replacement, and existing displacement sensor is installed
Structural maintenance difficulty is big, is typically necessary and first removes piston rod.
In addition, hydraulic cylinder is influenced by fluid and external load at work, circular piston bar, piston, which are easy to produce, to be turned
It is dynamic, and it is existing prevent piston rod rotation from generalling use special-shaped piston bar, special-shaped piston cylinder or hydraulic cylinder external guide rod structure,
The former complex process, the latter's outer dimension is larger, limits the popularization and application of anti-rotation cylinder.
Summary of the invention
In order to solve the above technical problems, the present invention, which provides one kind, has anti-rotating function, and anti-with displacement detection function
Turn hydraulic cylinder piston rod displacement sensor mounting structure.
The invention is realized by the following technical scheme: a kind of anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure, packet
Cylinder body is included, rear end of the cylinder block is fixedly connected with cylinder bottom, and cylinder body front end is fixedly connected with outer guide ring；Piston rod passes through outer guide ring,
Piston rod rear end is fixedly installed with the piston for cooperating sliding in cylinder body；It is blind that piston rod rear end shaft core position is provided with guiding
Hole, guiding blind hole are round hole；Piston rod guiding blind bore end is fixedly connected with middle guide ring, and middle guide ring center is provided with polygon
Shape hole；The oil-through hole I of guide ring two sides in connection is provided on middle guide ring；The cylinder bottom shaft core position is provided with installation through-hole, cylinder
Guide rod is fixedly installed in the installation through-hole of bottom；The guide rod is hollow stem, and guide rod outer circumference surface is polygon, guide rod
Fit through the polygonal hole at middle guide ring center；Guide rod inner end has one section of entity section；It is solid on the entity section periphery
Dingan County is equipped with interior guide ring, and interior guide ring periphery is slidably matched with piston rod guiding blind hole；It is provided in connection on interior guide ring
The oil-through hole II of guide ring two sides；It is fixed with displacement sensor on the outside of the cylinder bottom, the detection bar in displacement sensor, which is located at, leads
Into bar.
It is further: the oil-through hole III of guide ring two sides in being connected to is provided on the entity section.
The piston rod guiding blind bore end is provided with deep gouge, and the middle guide ring is mounted on piston rod guiding blind bore end
In deep gouge.
The middle guide ring is fixed by screws in the deep gouge of piston rod guiding blind bore end.
The middle guide ring center is regular pentagon, and oil-through hole I is the square three-way groove being provided on middle guide ring inner wall；Institute
State square three-way groove altogether there are five, five square three-way grooves are located in middle guide ring on the side of regular pentagon.
The guiding rod rear end is cylindrical drum, and guiding rod rear end is provided with as screw thread；The cylinder bottom installation through-hole is provided with interior spiral shell
Line, guiding rod rear end, which is connected through a screw thread, to be mounted in cylinder bottom installation through-hole.
Sealing device is installed between the guiding rod rear end and cylinder bottom installation through-hole.
The guiding rod rear end, which is equipped with, loosens fastening nut.
Compared with prior art, the beneficial effects of the present invention are:
1, displacement sensor and hydraulic cylinder are independently connected, and the maintenance and replacement of displacement sensor do not influence hydraulic cylinder itself, guarantee
Subsequent maintenance and repair is convenient and efficient；
2, piston rod rotation is prevented using built-in guide rod, it is characterized in that: use middle guide ring, interior guide ring to come and guiding
The guiding blind hole of bar cooperation, piston rod is not necessarily to special processing process, enormously simplifies its procedure of processing, reduces processing cost.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is enlarged drawing at A in Fig. 1；
Fig. 3 is enlarged drawing at B in Fig. 1；
In figure: 1, cylinder body；2, piston；3, cylinder bottom；4, piston rod；5, middle guide ring；5-1, oil-through hole I；6, guide rod；6-1, reality
Body section；6-2, oil-through hole III；7-1, oil-through hole II；7, interior guide ring；8, displacement sensor；8-1, detection bar；9, outer guide ring；
10, sealing device.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figures 1 to 3, a kind of anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure, including cylinder body 1, after cylinder body 1
End is fixedly connected with cylinder bottom 3, and 1 front end of cylinder body is fixedly connected with outer guide ring 9；Piston rod 4 is after outer guide ring 9, piston rod 4
End is fixedly installed with the piston 2 for cooperating sliding in cylinder body 1.
The present embodiment thes improvement is that:
4 rear end shaft core position of piston rod is provided with guiding blind hole, and guiding blind hole is round hole.Piston rod 4 is oriented to blind bore end and is provided with
Deep gouge, middle guide ring 5 are fixedly mounted on piston rod 4 by screw and are oriented in the deep gouge of blind bore end.Middle 5 center of guide ring is positive
Pentagon hole, I 5-1 of oil-through hole are the square three-way grooves being provided on middle 5 inner wall of guide ring；There are five square three-way groove is total, five sides
Shape through slot is located at the middle part of each edge of regular pentagon in middle guide ring 5.
The guide rod 6 is hollow stem, and 6 front end of guide rod is cylindrical drum, and 6 outer circumference surface of guide rod after cylindrical drum is
Regular pentagon, guide rod 6 fit through the regular pentagon hole at middle 5 center of guide ring.6 inner end of guide rod has one section of entity section 6-
1；Interior guide ring 7 is fixedly installed on entity section 6-1 periphery, interior 7 periphery of guide ring is oriented to blind hole sliding with piston rod 4 and matches
It closes.III 6-2 of oil-through hole of 7 two sides of guide ring in being connected to is provided on entity section 6-1.Guide ring 7 in connection is provided on interior guide ring 7
II 7-1 of oil-through hole of two sides, II 7-1 of oil-through hole on interior guide ring 7 can choose omission, and III 6-2 of oil-through hole is only used only
It was able to satisfy oil requirement.
6 rear end of guide rod is provided with as screw thread, and 3 installation through-hole of cylinder bottom is provided with internal screw thread, and 6 rear end of guide rod is connected through a screw thread
It is mounted in 3 installation through-hole of cylinder bottom, and the fastening nut that loosens by being mounted on 6 rear end of guide rod realizes fastening.Guide rod 6
Sealing device 10 is installed between 3 installation through-hole of rear end and cylinder bottom.
Mounting bracket is determined in welding on the outside of cylinder bottom 3, there is displacement sensor 8, the detection bar in displacement sensor 8 in mounting bracket
8-1 is located in guide rod 6.
Above-described embodiment it can be seen that
1, displacement sensor and hydraulic cylinder are independently connected, and the maintenance and replacement of displacement sensor do not influence hydraulic cylinder itself, guarantee
Subsequent maintenance and repair is convenient and efficient；
2, piston rod rotation is prevented using built-in guide rod, it is characterized in that: use middle guide ring, interior guide ring to come and guiding
The guiding blind hole of bar cooperation, piston rod is not necessarily to special processing process, enormously simplifies its procedure of processing, reduces processing cost.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure, including cylinder body (1), cylinder body (1) rear end is fixedly connected
Have cylinder bottom (3), cylinder body (1) front end is fixedly connected with outer guide ring (9)；Piston rod (4) passes through outer guide ring (9), piston rod (4)
Rear end is fixedly installed with the piston (2) of the cooperation sliding in cylinder body (1)；
It is characterized by:
Piston rod (4) rear end shaft core position is provided with guiding blind hole, and guiding blind hole is round hole；Piston rod (4) is oriented to blind hole
End is fixedly connected with middle guide ring (5), and middle guide ring (5) center is provided with polygonal hole；It is provided in connection on middle guide ring (5)
The oil-through hole I (5-1) of guide ring (5) two sides；
Cylinder bottom (3) shaft core position is provided with installation through-hole, is fixedly installed with guide rod (6) in cylinder bottom (3) installation through-hole；
The guide rod (6) is hollow stem, and guide rod (6) outer circumference surface is polygon, and guide rod (6) fits through middle guide ring
(5) polygonal hole at center；Guide rod (6) inner end has one section of entity section (6-1)；It is solid on entity section (6-1) periphery
Dingan County is equipped with interior guide ring (7), and interior guide ring (7) periphery is slidably matched with piston rod (4) guiding blind hole；Interior guide ring (7)
On be provided be connected in guide ring (7) two sides oil-through hole II (7-1)；
It is fixed with displacement sensor (8) on the outside of the cylinder bottom (3), the detection bar (8-1) in displacement sensor (8) is located at guide rod
(6) in.
2. anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure according to claim 1, it is characterised in that: the reality
The oil-through hole III (6-2) of guide ring (7) two sides in being connected to is provided in body section (6-1).
3. anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure according to claim 1, it is characterised in that: the work
Stopper rod (4) guiding blind bore end is provided with deep gouge, and the middle guide ring (5) is mounted on the deep gouge of piston rod (4) guiding blind bore end
In.
4. anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure according to claim 3, it is characterised in that: in described
Guide ring (5) is fixed by screws in the deep gouge of piston rod (4) guiding blind bore end.
5. anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure according to claim 1, it is characterised in that: in described
Guide ring (5) center is regular pentagon, and oil-through hole I (5-1) is the square three-way groove being provided on middle guide ring (5) inner wall；It is described
There are five square three-way groove is total, five square three-way grooves are located in middle guide ring (5) on the side of regular pentagon.
6. anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure according to claim 1, it is characterised in that: described to lead
It is cylindrical drum to bar (6) rear end, guide rod (6) rear end is provided with as screw thread；Cylinder bottom (3) installation through-hole is provided with internal screw thread, leads
It is connected through a screw thread and is mounted in cylinder bottom (3) installation through-hole to bar (6) rear end.
7. anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure according to claim 6, it is characterised in that: described to lead
Sealing device (10) are installed between bar (6) rear end and cylinder bottom (3) installation through-hole.
8. anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure according to claim 6, it is characterised in that: described to lead
It is equipped with to bar (6) rear end and loosens fastening nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910635263.2A CN110259761A (en) | 2019-07-15 | 2019-07-15 | Anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910635263.2A CN110259761A (en) | 2019-07-15 | 2019-07-15 | Anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110259761A true CN110259761A (en) | 2019-09-20 |
Family
ID=67926111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910635263.2A Pending CN110259761A (en) | 2019-07-15 | 2019-07-15 | Anti-rotation hydraulic cylinder piston rod displacement sensor mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110259761A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288039A (en) * | 2020-05-07 | 2020-06-16 | 江苏恒立液压股份有限公司 | Double-rod oil cylinder and engineering machinery with same |
| CN112431812A (en) * | 2020-12-04 | 2021-03-02 | 徐州徐工液压件有限公司 | Lead screw displacement self-detecting hydraulic cylinder |
| CN115126743A (en) * | 2022-07-06 | 2022-09-30 | 莱州亚通重型装备有限公司 | Built-in hexagonal anti-rotation mechanism oil cylinder with position feedback for coal mine |
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|---|---|---|---|---|
| GB1509751A (en) * | 1974-07-17 | 1978-05-04 | Festo Maschf Stoll G | Pneumatic or hydraulic actuators |
| JPH10141319A (en) * | 1996-11-07 | 1998-05-26 | Daido Tec Kk | Hydraulic cylinder |
| CN201757028U (en) * | 2010-08-19 | 2011-03-09 | 江苏恒立高压油缸股份有限公司 | Variable-pulp oil cylinder for wind power system |
| CN105673611A (en) * | 2016-04-19 | 2016-06-15 | 北京航天发射技术研究所 | Double-action multistage anti-rotation hydraulic cylinder |
| CN106050792A (en) * | 2016-07-29 | 2016-10-26 | 泸州合成液压件有限公司 | Linear oil cylinder |
| CN206111725U (en) * | 2016-11-01 | 2017-04-19 | 常州海宏液压设备有限公司 | Thrust cylinder is prevented rotating by piston rod |
| CN208040819U (en) * | 2018-03-27 | 2018-11-02 | 厦门银华机械有限公司 | Cylinder piston rod anti-rotation structure |
| CN108825581A (en) * | 2018-06-26 | 2018-11-16 | 徐州永佳液压设备有限公司 | Interior guiding anti-rotation hydraulic cylinder |
-
2019
- 2019-07-15 CN CN201910635263.2A patent/CN110259761A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1509751A (en) * | 1974-07-17 | 1978-05-04 | Festo Maschf Stoll G | Pneumatic or hydraulic actuators |
| JPH10141319A (en) * | 1996-11-07 | 1998-05-26 | Daido Tec Kk | Hydraulic cylinder |
| CN201757028U (en) * | 2010-08-19 | 2011-03-09 | 江苏恒立高压油缸股份有限公司 | Variable-pulp oil cylinder for wind power system |
| CN105673611A (en) * | 2016-04-19 | 2016-06-15 | 北京航天发射技术研究所 | Double-action multistage anti-rotation hydraulic cylinder |
| CN106050792A (en) * | 2016-07-29 | 2016-10-26 | 泸州合成液压件有限公司 | Linear oil cylinder |
| CN206111725U (en) * | 2016-11-01 | 2017-04-19 | 常州海宏液压设备有限公司 | Thrust cylinder is prevented rotating by piston rod |
| CN208040819U (en) * | 2018-03-27 | 2018-11-02 | 厦门银华机械有限公司 | Cylinder piston rod anti-rotation structure |
| CN108825581A (en) * | 2018-06-26 | 2018-11-16 | 徐州永佳液压设备有限公司 | Interior guiding anti-rotation hydraulic cylinder |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288039A (en) * | 2020-05-07 | 2020-06-16 | 江苏恒立液压股份有限公司 | Double-rod oil cylinder and engineering machinery with same |
| CN112431812A (en) * | 2020-12-04 | 2021-03-02 | 徐州徐工液压件有限公司 | Lead screw displacement self-detecting hydraulic cylinder |
| CN115126743A (en) * | 2022-07-06 | 2022-09-30 | 莱州亚通重型装备有限公司 | Built-in hexagonal anti-rotation mechanism oil cylinder with position feedback for coal mine |
| CN115126743B (en) * | 2022-07-06 | 2023-03-24 | 莱州亚通重型装备有限公司 | Built-in hexagonal anti-rotation mechanism oil cylinder with position feedback for coal mine |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190920 |
|
| RJ01 | Rejection of invention patent application after publication |