CN216009098U - Hydraulic oil cylinder with built-in magnetostrictive displacement sensor - Google Patents
Hydraulic oil cylinder with built-in magnetostrictive displacement sensor Download PDFInfo
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- CN216009098U CN216009098U CN202122026016.8U CN202122026016U CN216009098U CN 216009098 U CN216009098 U CN 216009098U CN 202122026016 U CN202122026016 U CN 202122026016U CN 216009098 U CN216009098 U CN 216009098U
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Abstract
The utility model discloses a hydraulic oil cylinder with a built-in magnetostrictive displacement sensor, which comprises an oil cylinder shell, wherein one end of the oil cylinder shell is provided with a head part, the other end of the oil cylinder shell is provided with an end part, and the tail end of the end part is provided with a base through a bolt; the magnetic displacement sensor is installed in the middle of one side of the base through a screw, a buffer spring is connected to the right side of the magnetic displacement sensor, and a buffer plate is arranged at the tail end of the buffer spring. This hydraulic cylinder of built-in magnetostrictive displacement sensor compares with current device, can remove smoothly in the draw-in groove under buffer spring elastic force effect through the buffer board that sets up, and when the fixture block inwards extruded the buffer board under the drive of sealing ring, buffer spring produced opposite effort, offset the impact of fixture block each other to avoid fixture block and magnetostrictive displacement sensor direct contact, lead to magnetostrictive displacement sensor to be strikeed repeatedly and produce the damage.
Description
Technical Field
The utility model relates to the technical field of hydraulic oil cylinders, in particular to a hydraulic oil cylinder with a built-in magnetostrictive displacement sensor.
Background
The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between the two sides of the effective area; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device. The damping device and the exhaust device are determined according to specific application occasions, and other devices are necessary.
According to the existing hydraulic oil cylinder with a built-in magnetostrictive displacement sensor, the magnetostrictive displacement sensor is directly installed in the hydraulic oil cylinder, the displacement sensor is repeatedly impacted in the process of piston rod stretching, the displacement sensor is damaged, and the damaged displacement sensor is difficult to detach and replace.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hydraulic oil cylinder with a built-in magnetostrictive displacement sensor, and aims to solve the problems that the magnetostrictive displacement sensor is directly arranged in the hydraulic oil cylinder, the displacement sensor is repeatedly impacted in the process of extending and retracting a piston rod, the displacement sensor is damaged, and the damaged displacement sensor is difficult to disassemble and replace in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a hydraulic cylinder with a built-in magnetostrictive displacement sensor comprises:
the oil cylinder comprises an oil cylinder shell, a base and a connecting rod, wherein a head is arranged at one end of the oil cylinder shell, an end part is arranged at the other end of the oil cylinder shell, and the tail end of the end part is provided with the base through a bolt;
the magnetic displacement sensor is arranged in the middle of one side of the base through a screw, a buffer spring is connected to the right side of the magnetic displacement sensor, and a buffer plate is arranged at the tail end of the buffer spring;
the sealing ring is sleeved outside the magnetic displacement sensor;
the clamping groove is formed in the end part, the input end of the clamping groove is connected with an oil inlet pipe, a sliding groove is formed in the joint of the clamping groove and the buffer plate, and a limiting block is arranged in the clamping groove;
and the sealing ring is arranged in the oil cylinder shell, and a clamping block matched with the clamping groove is arranged at one end, close to the clamping groove, of the sealing ring.
Preferably, the head is further provided with:
an oil outlet pipe provided in the lower part of the inside of the head;
a dust cover mounted inside the head portion to the right.
Preferably, the sealing ring is further provided with:
the connecting piece is arranged on one side of the sealing ring close to the head, and a non-magnetic gasket is sleeved outside the connecting piece;
and the magnetic ring is clamped in the middle of the non-magnetic-conductive gasket, and a non-magnetic-conductive inner ring is arranged at the joint of the magnetic ring and the connecting piece.
Preferably, the connecting member is further provided with:
the piston rod is connected to one side of the connecting piece, which is close to the head, and a guide spring is sleeved outside the piston rod;
and a fixing ring fixed to a distal end of the guide spring.
Preferably, the fixing ring is fixedly connected with the head, the piston rod penetrates through the inside of the fixing ring, and the connecting piece is elastically connected with the fixing ring through a guide spring.
Preferably, the buffer plate is elastically connected with the magnetic displacement sensor through a buffer spring, the buffer plate slides in the clamping groove through a sliding groove, and the limiting block is fixedly connected with the clamping groove.
Preferably, the cylinder housing is further provided with:
and the PLC is arranged on the surface of the oil cylinder shell and is electrically connected with the magnetic displacement sensor.
Compared with the prior art, the utility model provides a hydraulic oil cylinder with a built-in magnetostrictive displacement sensor, which has the following beneficial effects: this hydraulic cylinder of built-in magnetostrictive displacement sensor can move smoothly in the draw-in groove under buffer spring elastic force effect through the buffer board that sets up, and when the fixture block inwards extruded the buffer board under the drive of sealing ring, buffer spring produced opposite effort, offset the impact of fixture block each other to avoid fixture block and magnetostrictive displacement sensor direct contact, lead to magnetostrictive displacement sensor to be strikeed repeatedly and produce the damage.
1. According to the utility model, the buffer plate can smoothly move in the clamping groove under the elastic force action of the buffer spring, and when the clamping block is driven by the sealing ring to extrude the buffer plate inwards, the buffer spring generates opposite acting force to offset the impact force of the clamping block, so that the clamping block is prevented from being in direct contact with the magnetic displacement sensor, and the magnetic displacement sensor is prevented from being damaged due to repeated impact;
2. according to the utility model, the base can be detached from the end part by using the bolt, so that the magnetic displacement sensor on the base can be conveniently detached, and the magnetic displacement sensor can be conveniently replaced; through the non-magnetic-conductive inner ring and the non-magnetic-conductive gasket, the magnetic ring can be prevented from being contacted with the connecting piece made of metal materials, so that the magnetic leakage phenomenon caused by the contact of the magnetic ring and the metal piece is avoided;
3. the utility model can extend and retract along with the movement of the piston rod through the arranged guide spring, thereby guiding the piston rod and enabling the piston rod to move more stably through the elastic extension and retraction of the guide spring.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the cylinder housing of the present invention;
FIG. 3 is a schematic perspective view of a magnet ring according to the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
FIG. 5 is a schematic view of the working process of the present invention.
In the figure: 1. a cylinder housing; 2. a PLC controller; 3. an end portion; 4. a base; 5. a head portion; 6. an oil inlet pipe; 7. a dust cover; 8. a card slot; 9. a clamping block; 10. a seal ring; 11. a connecting member; 12. a magnetic ring; 13. a non-magnetic conductive spacer; 14. a guide spring; 15. a fixing ring; 16. an oil outlet pipe; 17. a piston rod; 18. a non-magnetic inner ring; 19. a magnetic displacement sensor; 20. a buffer plate; 21. a limiting block; 22. a buffer spring; 23. and (5) sealing rings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 2 and 4, a hydraulic cylinder with a built-in magnetostrictive displacement sensor includes: a dust cover 7 which is mounted inside the head 5 on the right side and to which the base 4 is mounted at the tip of the end 3 by a bolt; the magnetic displacement sensor 19 is installed in the middle of one side of the base 4 through a screw, a buffer spring 22 is connected to the right side of the magnetic displacement sensor 19, a buffer plate 20 is arranged at the tail end of the buffer spring 22, the buffer plate 20 is elastically connected with the magnetic displacement sensor 19 through the buffer spring 22, the buffer plate 20 slides in the clamping groove 8 through a sliding groove, a limiting block 21 is fixedly connected with the clamping groove 8, the buffer plate 20 can smoothly move in the clamping groove 8 under the elastic force action of the buffer spring 22, when the clamping block 9 is driven by the sealing ring 10 to inwards press the buffer plate 20, the buffer spring 22 generates opposite acting force to offset the impact force of the clamping block 9, and therefore the clamping block 9 is prevented from being in direct contact with the magnetic displacement sensor 19, and the magnetic displacement sensor 19 is prevented from being damaged due to repeated impact; a seal ring 23 which is sleeved outside the magnetic displacement sensor 19; the clamping groove 8 is formed in the end portion 3, the input end of the clamping groove 8 is connected with the oil inlet pipe 6, a sliding groove is formed in the joint of the clamping groove 8 and the buffer plate 20, the limiting block 21 is arranged in the clamping groove 8, the piston rod 17 is connected to one side, close to the head portion 5, of the connecting piece 11, and the guide spring 14 is sleeved outside the piston rod 17; the fixed ring 15, it is fixed at guide spring 14's end, fixed ring 15 and head 5 fixed connection, piston rod 17 runs through in the inside of fixed ring 15, connecting piece 11 passes through guide spring 14 and fixed ring 15 elastic connection, can follow piston rod 17's removal through the guide spring 14 that sets up and stretch out and draw back, thereby can carry out the work of leading to piston rod 17, and flexible messenger piston rod 17 through guide spring 14's elasticity moves more stably, the one end that sealing ring 10 is close to draw-in groove 8 is equipped with the fixture block 9 with draw-in groove 8 assorted.
As shown in fig. 1, 3 and 5, a hydraulic cylinder with a built-in magnetostrictive displacement sensor comprises: the oil cylinder comprises an oil cylinder shell 1, wherein a head part 5 is arranged at one end of the oil cylinder shell 1, an end part 3 is arranged at the other end of the oil cylinder shell 1, the oil cylinder shell can be detached from the end part 3 through an arranged base 4 by using a bolt, so that a magnetic displacement sensor 19 on the base 4 can be conveniently detached, the magnetic displacement sensor 19 can be conveniently replaced, an oil outlet pipe 16 is arranged in the head part 5 and close to the lower part, a PLC (programmable logic controller) 2 is arranged on the surface of the oil cylinder shell 1, and the PLC 2 is electrically connected with the magnetic displacement sensor 19; the sealing ring 10 is arranged inside the oil cylinder shell 1, the connecting piece 11 is arranged on one side of the sealing ring 10 close to the head part 5, and the outer part of the connecting piece 11 is sleeved with a non-magnetic gasket 13; the magnetic ring 12 is clamped between the non-magnetic-conductive gaskets 13, the non-magnetic-conductive inner ring 18 is arranged at the joint of the magnetic ring 12 and the connecting piece 11, and the magnetic ring 12 can be prevented from being contacted with the connecting piece 11 made of metal materials through the arranged non-magnetic-conductive inner ring 18 and the non-magnetic-conductive gaskets 13, so that the magnetic leakage phenomenon caused by the contact of the magnetic ring 12 and metal pieces is avoided.
The working principle is as follows: when the hydraulic oil cylinder with the built-in magnetostrictive displacement sensor is used, firstly, a connecting pipe of an oil pump is connected with an oil inlet pipe 6 and an oil outlet pipe 16, hydraulic oil enters the interior of the oil cylinder shell 1 through the oil inlet pipe 6 through a clamping groove 8, so that the sealing ring 10 is pushed to move towards the output end, the clamping block 9 is separated from the clamping groove 8, at the moment, the connecting piece 11 moves rightwards under the driving of the sealing ring 10, and the piston rod 17 extends rightwards; secondly, hydraulic oil on the right side of the sealing ring 10 is discharged from the oil outlet pipe 16 under the hydraulic action, meanwhile, the connecting piece 11 extrudes the guide spring 14 rightwards, the guide spring 14 is compressed, and the stability of the piston rod 17 is improved; then, the magnetic displacement sensor 19 monitors the distance of the magnetic ring 12, so that the moving distance of the piston rod 17 is monitored, data are transmitted to the PLC controller 2, the PLC controller 2 displays the data through a display screen, when the piston rod 17 is reset, the fixture block 9 enters the inside of the clamping groove 8 again and gradually approaches the buffer plate 20, the buffer plate 20 extrudes the buffer spring 22 inwards at the moment, the buffer spring 22 generates elastic force to offset the acting force, and therefore the fixture block 9 is prevented from being in direct contact with the magnetic displacement sensor 19, and the magnetic displacement sensor 19 is prevented from being damaged due to repeated impact; finally, the bolt on the base 4 is screwed, the base 4 can be disassembled, the magnetic displacement sensor 19 and the sealing ring 23 outside the magnetic displacement sensor 19 are taken out, and leakage of hydraulic oil from the connecting position of the magnetic displacement sensor 19 and the clamping groove 8 can be avoided.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A hydraulic oil cylinder with a built-in magnetostrictive displacement sensor is characterized by comprising:
the oil cylinder comprises an oil cylinder shell (1), wherein one end of the oil cylinder shell (1) is provided with a head part (5), the other end of the oil cylinder shell (1) is provided with an end part (3), and the tail end of the end part (3) is provided with a base (4) through a bolt;
the magnetic displacement sensor (19) is installed in the middle of one side of the base (4) through a screw, a buffer spring (22) is connected to the right side of the magnetic displacement sensor (19), and a buffer plate (20) is arranged at the tail end of the buffer spring (22);
a seal ring (23) which is sleeved outside the magnetic displacement sensor (19);
the clamping groove (8) is formed in the end portion (3), the input end of the clamping groove (8) is connected with the oil inlet pipe (6), a sliding groove is formed in the joint of the clamping groove (8) and the buffer plate (20), and a limiting block (21) is arranged in the clamping groove (8);
and the sealing ring (10) is arranged in the oil cylinder shell (1), and one end, close to the clamping groove (8), of the sealing ring (10) is provided with a clamping block (9) matched with the clamping groove (8).
2. A hydraulic cylinder with built-in magnetostrictive displacement sensor according to claim 1, characterized in that the head (5) is further provided with:
an oil outlet pipe (16) which is provided in the lower portion of the interior of the head (5);
and a dust cover (7) attached to the right side inside the head (5).
3. A hydraulic cylinder with built-in magnetostrictive displacement sensor according to claim 1, characterized in that the sealing ring (10) is further provided with:
the connecting piece (11) is arranged on one side, close to the head (5), of the sealing ring (10), and a non-magnetic gasket (13) is sleeved outside the connecting piece (11);
and the magnetic ring (12) is clamped in the middle of the non-magnetic-conductive gasket (13), and a non-magnetic-conductive inner ring (18) is arranged at the joint of the magnetic ring (12) and the connecting piece (11).
4. A hydraulic cylinder with built-in magnetostrictive displacement sensor according to claim 3, characterized in that the connecting piece (11) is further provided with:
the piston rod (17) is connected to one side, close to the head (5), of the connecting piece (11), and a guide spring (14) is sleeved outside the piston rod (17);
a fixing ring (15) fixed to a tip of the guide spring (14).
5. The hydraulic oil cylinder with a built-in magnetostrictive displacement sensor according to claim 4, characterized in that the fixed ring (15) is fixedly connected with the head (5), the piston rod (17) penetrates through the fixed ring (15), and the connecting piece (11) is elastically connected with the fixed ring (15) through a guide spring (14).
6. The hydraulic oil cylinder with the built-in magnetostrictive displacement sensor according to claim 1, characterized in that the buffer plate (20) is elastically connected with the magnetostrictive displacement sensor (19) through a buffer spring (22), the buffer plate (20) slides in the slot (8) through a sliding groove, and the limit block (21) is fixedly connected with the slot (8).
7. The hydraulic cylinder with a built-in magnetostrictive displacement sensor according to claim 1, characterized in that the cylinder housing (1) is further provided with:
the PLC controller (2) is installed on the surface of the oil cylinder shell (1), and the PLC controller (2) is electrically connected with the magnetic displacement sensor (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122026016.8U CN216009098U (en) | 2021-08-25 | 2021-08-25 | Hydraulic oil cylinder with built-in magnetostrictive displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122026016.8U CN216009098U (en) | 2021-08-25 | 2021-08-25 | Hydraulic oil cylinder with built-in magnetostrictive displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216009098U true CN216009098U (en) | 2022-03-11 |
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ID=80533635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122026016.8U Active CN216009098U (en) | 2021-08-25 | 2021-08-25 | Hydraulic oil cylinder with built-in magnetostrictive displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216009098U (en) |
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2021
- 2021-08-25 CN CN202122026016.8U patent/CN216009098U/en active Active
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