CN221195574U - Hydraulic cylinder with high-precision travel sensor and headstock gear thereof - Google Patents
Hydraulic cylinder with high-precision travel sensor and headstock gear thereof Download PDFInfo
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- CN221195574U CN221195574U CN202322941337.XU CN202322941337U CN221195574U CN 221195574 U CN221195574 U CN 221195574U CN 202322941337 U CN202322941337 U CN 202322941337U CN 221195574 U CN221195574 U CN 221195574U
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- travel sensor
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- cylinder
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- 238000005096 rolling process Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 14
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 3
- 235000017491 Bambusa tulda Nutrition 0.000 description 3
- 241001330002 Bambuseae Species 0.000 description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 3
- 239000011425 bamboo Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides a hydraulic cylinder with a high-precision travel sensor and a hoist thereof, which are characterized in that the hydraulic cylinder with the high-precision travel sensor comprises a cylinder body, wherein a piston and a piston rod are arranged in the cylinder body, an axially arranged mounting hole is formed in the piston rod, the travel sensor is arranged in the piston rod, a plurality of balls are arranged on the wall of the mounting hole, the travel sensor is arranged and guided through rolling of the balls, and the travel sensor and the mounting hole are kept coaxial; the ball is elastically connected with the piston rod through a spring. When the stroke sensor is inserted into the mounting hole, the stroke sensor is in rolling connection with the ball, so that the damage of the stroke sensor caused by sliding friction can be avoided; the stroke sensor is limited by the ball after being installed, so that the stroke sensor is always kept in a coaxial state with the installation hole; the ball can press the stroke sensor under the action of the spring, so that the position of the stroke sensor is kept stable; when the piston rod stretches out and draws back, the stroke sensor can not wear under the action of the ball.
Description
Technical Field
The utility model relates to the technical field of openers, in particular to a hydraulic cylinder for an opener, and specifically relates to a hydraulic cylinder with a high-precision stroke sensor and the opener thereof.
Background
The hydraulic hoist adopts a hydraulic cylinder to drive the gate to lift. In order to reflect the hydraulic state, the hydraulic system is monitored and controlled, so that the state of the gate is detected, a stroke sensor is generally arranged on the hydraulic cylinder, and the traditional installation structure is as follows: the stroke sensor is arranged on the tailstock of the hydraulic cylinder, sequentially penetrates through the tailstock and the piston, and is inserted into the axial mounting hole of the piston rod.
When the stroke sensor is installed, the condition in the installation hole is difficult to observe, so friction is easy to occur between the stroke sensor and the hole wall; under the circumstances of processing errors and assembly errors, the stroke sensor is easy to contact with the hole wall of the mounting hole, so that an included angle is formed between the stroke sensor and the hole wall, and the detection precision is affected; and when the piston rod moves, friction is generated with the stroke sensor, so that the stroke sensor is damaged.
Disclosure of utility model
In order to solve the technical problems in the background technology, the utility model discloses a hydraulic cylinder with a high-precision stroke sensor and a headstock gear thereof.
The utility model provides a hydraulic cylinder with a high-precision stroke sensor, which comprises a cylinder body, wherein a piston and a piston rod are arranged in the cylinder body, an axially arranged mounting hole is formed in the piston rod, the stroke sensor is arranged in the mounting hole, a plurality of balls are arranged on the wall of the mounting hole, the stroke sensor is arranged and guided through rolling, and the stroke sensor and the mounting hole are kept coaxial;
the ball is elastically connected with the piston rod through a spring.
The beneficial effects of the utility model are as follows: 1. when the stroke sensor is inserted into the mounting hole, the stroke sensor is in rolling connection with the ball, so that the damage of the stroke sensor caused by sliding friction can be avoided; 2. the stroke sensor is limited by the ball after being installed, so that the stroke sensor is always kept in a coaxial state with the installation hole; 3. the ball can press the stroke sensor under the action of the spring, so that the position of the stroke sensor is kept stable; 4. when the piston rod stretches out and draws back, the stroke sensor can not wear under the action of the ball.
The ball and the spring are directly mounted on the piston rod, which is difficult, based on which a further improvement consists in: a fixed pipe is inserted in the piston rod; the mounting hole is arranged in the fixed pipe; the ball and the spring are mounted on the fixed tube. The ball and the spring are firstly arranged on the fixed pipe, and then the fixed pipe is inserted into the piston rod, so that the installation difficulty is reduced.
The concrete mounting structure of fixed pipe and piston rod is: a joint hole is formed at the end part of the fixed pipe and the piston rod; screws are connected in the joint holes in a threaded manner; the sealing ring is clamped at the joint of the side parts of the fixed pipe and the piston rod, so that the sealing is realized.
Ball and spring direct mount are on fixed pipe, and the degree of difficulty is higher, based on this, and further improvement lies in: the ball and the spring are arranged in the mounting cylinder; the fixed pipe lateral wall is provided with the spliced eye of radial arrangement, and the spliced eye is the screw hole.
In order to realize stable rolling of the balls, the springs are stably stretched, and particularly, the inner end of the mounting cylinder is provided with inward convex blocks, and the surfaces of the convex blocks connected with the balls are first bonded spherical surfaces; a pressing block is further arranged in the mounting cylinder, and the surface of the pressing block connected with the ball is a second bonded spherical surface; the mounting cylinder is internally and further connected with a limiting block in a threaded manner, and two ends of the spring are respectively connected with the limiting block and the pressing block.
The position difference of ball can influence stroke sensor's position accuracy and mounting structure stability, based on this, and further improvement lies in: an inner step is arranged in the plug hole, and the small diameter part of the inner step is a threaded hole; the outer wall of the mounting cylinder is provided with a shoulder part which is connected with the inner step in a clamping way.
In order to be convenient for install a section of thick bamboo dismouting, further improvement lies in: the outer terminal surface of installation section of thick bamboo is provided with the blind hole, and the workman of being convenient for twists and revolves the installation section of thick bamboo.
The utility model also provides a hoist, which comprises a hydraulic cylinder with a high-precision travel sensor and is used for driving the gate to lift. In this way, the accuracy of the monitoring data of the gate is higher.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is an enlarged view at B in FIG. 1;
In the figure: 1. a cylinder; 2. a piston; 3. a piston rod; 4. a mounting hole; 5. a stroke sensor; 6. a spring; 7. a fixed tube; 8. a saddle hole; 9. a screw; 10. a seal ring; 11. a mounting cylinder; 12. a plug hole; 13. a bump; 14. a first spherical surface; 15. briquetting; 16. a second spherical surface; 17. a limiting block; 18. an inner step; 19. a shoulder; 20. a blind hole; 21. and (3) rolling balls.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
Embodiment one:
The utility model provides a hydraulic cylinder with a high-precision stroke sensor, which comprises a cylinder body 1, wherein a piston 2 and a piston rod 3 are arranged in the cylinder body.
The axial center of the piston rod 3 is inserted with a fixed pipe 7, four uniformly distributed riding holes 8 are formed at the connecting part of the end part of the fixed pipe, and screws 9 are connected with the fixed pipe 7 in a threaded manner, so that the fixed pipe is fixedly connected with the piston rod 3. The outer wall joint of fixed pipe 7 has two sealing washer 10 that juxtapose, interval arrangement for seal between fixed pipe 7 and the piston rod 3. The inner hole of the fixed pipe 7 is provided with a mounting hole 4, and the stroke sensor 5 sequentially penetrates through the tail part of the cylinder body 1 and the piston 2 and is inserted into the mounting hole 4.
The pipe wall of the fixed pipe 7 is provided with a plurality of axially and radially uniformly arranged plug holes 12, the plug holes 12 are internally connected with a mounting cylinder 11 in a threaded manner, and the outer end of the mounting cylinder 11 is sunken in the plug holes 12. The outer end face of the installation cylinder 11 is provided with two blind holes 20 which are uniformly distributed, so that workers can screw the installation cylinder 11 conveniently. The tool structure of the screwing installation cylinder 11 is as follows: a cylindrical handle is used, the ends of which are welded two pins corresponding to the blind holes 20. The inserted rod is inserted into the blind hole 20, so that the handle can be driven to screw the mounting cylinder 11.
The ball 21 is arranged in the mounting cylinder 11, and elastic connection is realized through the spring 6, and the concrete structure is as follows: the inner end of the mounting cylinder 11 is provided with an inwardly protruding lug 13, and the surface of the lug 13 connected with the ball 21 is a first spherical surface 14 and is attached to the ball 21. The inner bore diameter of the boss 13 is smaller than the diameter of the ball 21. A pressing block 15 is further provided in the mounting cylinder 11 so that the balls 21 are sandwiched between the boss 13 and the pressing block 15. The surface of the pressing block 15 connected with the ball 21 is a second spherical surface 16 and is also bonded with the ball 21. In this way, the stability of the rolling of the balls 21 can be improved. The position of the inner wall of the mounting cylinder 11, which is close to the blind hole 20, is also provided with an adjusting threaded hole, a limiting block 17 is connected with threads, and two ends of the spring 6 are respectively connected with the limiting block 17 and the pressing block 15. By screwing the stopper 17, the elastic force of the spring 6 can be adjusted. The stopper 17 and the opposite terminal surface of briquetting 15 all are provided with bellied fixture block, and spring 6 cup joints on the fixture block, realizes the installation spacing.
After the ball 21 is mounted, the mounting hole 4 is protruded inward.
The beneficial effects of the utility model are as follows: 1. when the stroke sensor 5 is inserted into the mounting hole 4, the stroke sensor 5 is in rolling connection with the ball 21, so that the damage of the stroke sensor 5 caused by sliding friction can be avoided; 2. after the stroke sensor 5 is installed, the stroke sensor is limited by the ball 21, so that the stroke sensor is always kept in a coaxial state with the installation hole 4; 3. the ball 21 presses the stroke sensor 5 under the action of the spring 6, so that the position of the stroke sensor 5 is kept stable; 4. when the piston rod 3 stretches and contracts, the stroke sensor 5 cannot be worn under the action of the balls 21; 5. the fixed tube 7 is arranged to facilitate the installation of the ball 21 and the spring 6.
Embodiment two:
The difference from the first embodiment is that: the insertion hole 12 is provided with an inner step 18, the small diameter portion thereof is a screw hole, and the direct large portion thereof is a light hole. The outer wall of the mounting cylinder 11 is provided with a shoulder 19 which is connected with the inner step 18 in a clamping way, and the small-diameter part is provided with external threads which are connected with the small part of the plug hole 12 in a threaded way. The shoulder 19 is clamped with the inner step 18, so that the ball 21 is installed and positioned, the radial distance between the ball 21 and the fixed pipe 7 is kept consistent, and the position accuracy and the installation structure stability of the stroke sensor 5 are improved.
Embodiment III:
The utility model also discloses a hoist, which comprises any one of the hydraulic cylinders with the high-precision travel sensor in the first embodiment or the second embodiment, and is used for driving the gate to lift. In this way, the accuracy of the monitoring data of the gate is higher.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (8)
1. The utility model provides a pneumatic cylinder with high accuracy travel sensor, includes cylinder body (1), its inside piston (2) and piston rod (3) that are provided with, set up mounting hole (4) of axial arrangement in piston rod (3), install travel sensor (5) in mounting hole (4), its characterized in that:
The wall of the mounting hole (4) is provided with a plurality of balls (21), the mounting guide of the travel sensor (5) is realized through the rolling of the balls, and the travel sensor (5) and the mounting hole (4) are kept coaxial;
The ball (21) is elastically connected with the piston rod (3) through a spring (6).
2. A hydraulic cylinder with a high accuracy travel sensor according to claim 1, characterized in that: a fixed pipe (7) is inserted into the piston rod (3);
the mounting hole (4) is arranged in the fixed pipe (7);
The ball (21) and the spring (6) are mounted on the fixed tube (7).
3. A hydraulic cylinder with a high accuracy travel sensor according to claim 2, characterized in that: a joint hole (8) is formed at the end part of the fixed pipe (7) and the piston rod (3);
a screw (9) is connected with the inner thread of the saddle hole (8);
The sealing ring (10) is clamped at the joint of the side parts of the fixed pipe (7) and the piston rod (3) to realize sealing.
4. A hydraulic cylinder with a high accuracy travel sensor according to claim 2, characterized in that: the ball (21) and the spring (6) are arranged in the mounting cylinder (11);
The side wall of the fixed pipe (7) is provided with radially arranged plug holes (12), and the plug holes (12) are threaded holes;
The mounting cylinder (11) is in threaded connection with the plug hole (12).
5. A hydraulic cylinder with a high accuracy travel sensor according to claim 4, wherein: the inner end of the mounting cylinder (11) is provided with a lug (13) protruding inwards, and the surface of the lug (13) connected with the ball (21) is a first bonded spherical surface (14);
A pressing block (15) is further arranged in the mounting cylinder (11), and the surface of the pressing block (15) connected with the ball (21) is a second bonded spherical surface (16);
The mounting cylinder (11) is internally and further connected with a limiting block (17) in a threaded mode, and two ends of the spring (6) are respectively connected with the limiting block (17) and the pressing block (15).
6. A hydraulic cylinder with a high accuracy travel sensor according to claim 4, wherein: an inner step (18) is arranged in the plug hole (12), and a small direct part of the inner step is a threaded hole;
The outer wall of the mounting cylinder (11) is provided with a shoulder (19) which is connected with the inner step (18) in a clamping way.
7. A hydraulic cylinder with a high accuracy travel sensor according to claim 4, wherein: the outer end face of the mounting cylinder (11) is provided with a blind hole (20), so that workers can conveniently screw the mounting cylinder (11).
8. The utility model provides a headstock gear which characterized in that: a hydraulic cylinder with a high accuracy travel sensor according to any one of claims 1 to 7 for driving a gate up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322941337.XU CN221195574U (en) | 2023-10-31 | 2023-10-31 | Hydraulic cylinder with high-precision travel sensor and headstock gear thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322941337.XU CN221195574U (en) | 2023-10-31 | 2023-10-31 | Hydraulic cylinder with high-precision travel sensor and headstock gear thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221195574U true CN221195574U (en) | 2024-06-21 |
Family
ID=91513954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322941337.XU Active CN221195574U (en) | 2023-10-31 | 2023-10-31 | Hydraulic cylinder with high-precision travel sensor and headstock gear thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221195574U (en) |
-
2023
- 2023-10-31 CN CN202322941337.XU patent/CN221195574U/en active Active
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