CN218780566U - Oil cylinder protection device with overload protection - Google Patents
Oil cylinder protection device with overload protection Download PDFInfo
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- CN218780566U CN218780566U CN202222916684.2U CN202222916684U CN218780566U CN 218780566 U CN218780566 U CN 218780566U CN 202222916684 U CN202222916684 U CN 202222916684U CN 218780566 U CN218780566 U CN 218780566U
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Abstract
The utility model relates to a hydraulic cylinder field discloses a hydro-cylinder protection device with overload protection. The method comprises the following steps: the oil pressure body, install the back lid on the oil pressure body, pressure release protection subassembly for will get into this internal load hydraulic oil of oil pressure and discharge. The linkage piston is connected to the pressure relief protection assembly, one end of the linkage piston is arranged and abuts against the elastic piece in the rear cover, and the micro-motion assembly is connected to the linkage piston. The protection device avoids the influence of high-load oil pressure on the oil cylinder, and improves the service life of the oil cylinder.
Description
Technical Field
The utility model relates to a hydraulic cylinder field, in particular to hydro-cylinder protection device with overload protection.
Background
The hydraulic oil cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and makes linear reciprocating motion. It has simple structure and reliable operation. When it is used to implement reciprocating movement, it can save speed reducer, and has no transmission gap and stable movement, so that it can be extensively used in various mechanical hydraulic systems.
However, the traditional hydraulic oil cylinder device has a large load on a piston rod, the piston rod is easy to damage after long-term use, and the service life of the oil cylinder is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a hydro-cylinder protection device with overload protection has solved that the oil pressure is big to the load of hydro-cylinder, influences the life's of hydro-cylinder problem.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a cylinder protection device with overload protection, comprising:
the hydraulic control device comprises an oil pressure body and a rear cover, wherein the rear cover is arranged on the oil pressure body;
the pressure relief protection assembly is used for discharging the load hydraulic oil entering the oil pressure body;
the linkage piston is connected to the pressure relief protection assembly, one end of the linkage piston is arranged and abuts against the elastic piece in the rear cover, and the micro-motion assembly is connected to the linkage piston.
According to the technical scheme, when hydraulic oil enters the oil pressure body, the hydraulic oil pushes the pressure relief protection assembly to drive the linkage piston to move, so that the elastic piece is in a compression state, meanwhile, when the linkage piston moves, the micro-motion assembly is also driven to move, when the linkage piston moves to a corresponding stroke, the micro-motion assembly drives the linkage piston to move in the opposite direction, the elastic piece is in an extension state, and the pressure relief protection assembly also moves along with the linkage piston and performs pressure relief.
As an optimized scheme of the utility model, the oil feed chamber that has seted up the oil inlet in the oil pressure body and be connected with it, and be located the pressure release mouth of oil inlet one side.
According to the technical scheme, the hydraulic oil entering from the oil inlet pushes the pressure relief protection assembly to move in the oil inlet cavity, and the hydraulic oil of the oil pressure body is effectively relieved according to the actual oil pressure condition.
As a preferred scheme of the utility model, the pressure release protection subassembly includes: locate the oil feed intracavity and have the loose axle of through-hole, locate this internal axle bed of oil pressure, set up in the axle bed and with loose axle complex recess, locate control valve in the axle bed just the one end of control valve support lean on in the loose axle and support lean on in the other end of control valve just extends to the outer relief valve of axle bed.
According to the technical scheme, when the pressure relief protection assembly is pushed by hydraulic oil in the oil inlet cavity, the hydraulic oil pushes the control valve and the pressure relief valve to move, the hydraulic oil enters the groove and drives the linkage piston to extrude the elastic piece, the micro-motion assembly responds according to the motion stroke, the linkage piston, the pressure relief valve and the control valve return, the movable shaft is pushed, the groove is opened, and the hydraulic oil is relieved through the pressure relief opening.
As an optimized proposal of the utility model, the linkage piston is provided with a sealing ring which is positioned between the back cover and the linkage piston.
According to the technical scheme, the linkage piston is sealed, so that the air blowby of the left cavity and the right cavity of the piston is prevented, and the guidance quality of the cylinder body can be improved.
As a preferred aspect of the present invention, the elastic member includes: the pressure relief device comprises a spring seat arranged at one end of the movable piston and a pressure relief spring sleeved on the spring seat.
Realize above-mentioned technical scheme, transfer some pressure on the relief valve to the pressure release spring to play the pressure release effect.
As a preferred scheme of the utility model, it stretches into to cover to be equipped with one end after the back cover in and support and push pressure release spring's pressure regulating screw.
Realize above-mentioned technical scheme, can adjust the adaptation through the pressure regulating screw to the power that the pressure release spring received according to actual need.
As a preferred scheme of the utility model, the fine motion subassembly includes: the linkage plate is arranged on the linkage piston through a bolt, the linkage plate extends out of the oil pressure body, the adjusting screw is arranged on the linkage plate, and the micro switch is arranged on the outer surface of the oil pressure body, and one end of the micro switch is matched with the adjusting screw.
The technical scheme is realized, and the principle of the microswitch is as follows: the external mechanical force acts on the action reed through the transmission element, and when the action reed moves to a critical point, instantaneous action is generated, so that the movable contact at the tail end of the action reed is quickly connected with or disconnected from the fixed contact. When the acting force on the transmission element is removed, the action reed generates reverse action force, and when the reverse stroke of the transmission element reaches the action critical point of the reed, the reverse action is instantly finished.
In this embodiment, the linkage plate drives the spring in the micro switch to operate when moving, and when the spring moves to a critical point, the micro switch responds to move the linkage plate back to perform a pressure relief operation.
As a preferred scheme of the utility model, be equipped with the air on the oil pressure body and excrete the screw.
Realize above-mentioned technical scheme, when the oil pressure body moves, open the air earlier and excrete the screw, the outside evacuation pump of interface connection who opens makes this internal air of oil pressure discharge completely, avoids influencing the normal operating of oil pressure body.
To sum up, the utility model discloses following beneficial effect has: when hydraulic oil enters the hydraulic body, the hydraulic oil pushes the pressure relief protection assembly to drive the linkage piston to move, so that the elastic piece is in a compression state, meanwhile, when the linkage piston moves, the micro-motion assembly is also driven to move, when the linkage piston moves to a corresponding stroke, the micro-motion assembly drives the linkage piston to move in the opposite direction, the elastic piece is in an extension state, and the pressure relief protection assembly also moves along with the linkage piston and performs pressure relief. The protection device avoids the influence of high-load oil pressure on the oil cylinder and prolongs the service life of the oil cylinder.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic sectional view of the present invention.
Fig. 2 is a schematic view of the three-dimensional structure of the present invention.
Fig. 3 is a schematic view of the overall structure of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
1. an oil pressure body; 101. an oil inlet; 102. a pressure relief port; 103. an oil inlet cavity; 2. a pressure relief protection component; 201. a movable shaft; 202. a control valve; 203. a shaft seat; 204. a pressure relief valve; 3. a groove; 4. a linking piston; 5. an elastic member; 501. a spring seat; 502. a pressure relief spring; 6. a rear cover; 7. a pressure regulating screw; 8. a seal ring; 9. a bolt; 10. a micro-motion assembly; 1001. a microswitch; 1002. a linkage plate; 1003. adjusting screws; 11. an air drain screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Examples
As shown in fig. 1 to 3, the utility model relates to a hydro-cylinder protection device with overload protection, include: the hydraulic control device comprises a hydraulic body 1 and a rear cover 6 mounted on the hydraulic body 1.
The pressure relief protection component 2 is used for discharging load hydraulic oil entering the oil pressure body 1, and an oil inlet 101, an oil inlet cavity 103 connected with the oil inlet 101 and a pressure relief opening 102 located on one side of the oil inlet 101 are formed in the oil pressure body 1.
The hydraulic oil that gets into from oil inlet 101 promotes pressure release protection component 2 to remove in the oil feed chamber 103 to according to the actual oil pressure condition, carry out the pressure release effectively to the hydraulic oil of oil pressure body 1.
The pressure relief protection assembly 2 includes: locate the movable shaft 201 that the oil feed chamber 103 just has the through-hole, locate axle bed 203 in the oil pressure body 1, offer in axle bed 203 and with the recess 3 of movable shaft 201 complex, locate the control valve 202 in axle bed 203 and the one end of control valve 202 support and lean on in movable shaft 201, and support and lean on in the other end of control valve 202 and extend to the outside relief valve 204 of axle bed 203.
When the pressure relief protection assembly 2 is pushed by hydraulic oil in the oil inlet cavity 103, the hydraulic oil pushes the control valve 202 and the pressure relief valve 204 to move, the hydraulic oil enters the groove 3 to drive the linkage piston 4 to extrude the elastic part 5, and the micro-motion assembly 10 responds according to the motion stroke, so that the linkage piston 4, the pressure relief valve 204 and the control valve 202 return, and pushes the movable shaft 201 to open the groove 3, so that the hydraulic oil is relieved through the pressure relief port 102.
The linkage piston 4 connected to the pressure relief protection component 2, the elastic component 5 arranged at one end of the linkage piston 4 and abutted against the rear cover 6, and the micro-motion component 10 connected to the linkage piston 4.
The interlocking piston 4 is provided with a sealing ring 8 positioned between the rear cover 6 and the interlocking piston 4, and the sealing ring has a sealing effect on the interlocking piston 4 so as to prevent the air blowby of the left cavity and the right cavity of the piston and increase the guidance of the cylinder body.
The elastic member 5 includes: the pressure relief device comprises a spring seat 501 arranged at one end of the movable piston and a pressure relief spring 502 sleeved on the spring seat 501, wherein a part of pressure on the pressure relief valve 204 is transferred to the pressure relief spring 502, and the pressure relief effect is achieved.
Be equipped with one end on the back lid 6 and stretch into in the back lid 6 and support the pressure regulating screw 7 that pushes away pressure release spring 502, can adjust the adaptation through pressure regulating screw 7 according to the power that actual need received pressure release spring 502.
The micromotion assembly 10 comprises: the linkage plate 1002 is mounted on the linkage piston 4 through a bolt 9, the linkage plate 1002 extends out of the oil pressure body 1, the adjusting screw 1003 is arranged on the linkage plate 1002, and the micro switch 1001 is arranged on the outer surface of the oil pressure body 1, and one end of the micro switch is matched with the adjusting screw 1003.
The principle of the microswitch 1001 is: the external mechanical force acts on the action reed through the transmission element, and when the action reed moves to a critical point, instantaneous action is generated, so that the movable contact at the tail end of the action reed is quickly connected with or disconnected from the fixed contact. When the acting force on the transmission element is removed, the action reed generates reverse action force, and when the reverse stroke of the transmission element reaches the action critical point of the reed, the reverse action is instantly finished.
In this embodiment, when the linkage plate 1002 moves, the spring in the micro switch 1001 is driven to operate, and when the spring moves to a critical point, the micro switch 1001 responds to move the linkage plate 1002 back to perform a pressure relief operation.
Be equipped with the air on the oil pressure body 1 and excrete screw 11, when oil pressure body 1 moves, open the air earlier and excrete screw 11, the outside evacuation pump of interface connection of opening makes the air in the oil pressure body 1 discharge completely, avoids influencing the normal operating of oil pressure body 1.
In this embodiment, when hydraulic oil enters the oil pressure body 1, hydraulic oil pushes the pressure relief protection assembly 2 to drive the linkage piston 4 to move, so that the elastic element 5 is in a compressed state, and meanwhile, when the linkage piston 4 moves, the micro-motion assembly 10 is also driven to move, and when the linkage piston 4 moves to a corresponding stroke, the micro-motion assembly 10 drives the linkage piston 4 to move in the opposite direction, so that the elastic element 5 is in an extended state, and the pressure relief protection assembly 2 also moves along with the linkage piston, and pressure relief is performed. The protection device avoids the influence of high-load oil pressure on the oil cylinder and prolongs the service life of the oil cylinder.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A cylinder protection device with overload protection, characterized by comprising:
the hydraulic control device comprises an oil pressure body and a rear cover, wherein the rear cover is arranged on the oil pressure body;
the pressure relief protection component is used for discharging the load hydraulic oil entering the oil pressure body;
the linkage piston is connected to the pressure relief protection assembly, one end of the linkage piston is arranged and abuts against the elastic piece in the rear cover, and the micro-motion assembly is connected to the linkage piston.
2. The cylinder protection device with overload protection according to claim 1, wherein an oil inlet and an oil inlet cavity connected with the oil inlet are formed in the oil pressure body, and a pressure relief opening is formed in one side of the oil inlet.
3. The cylinder protection arrangement with overload protection according to claim 2, wherein the pressure relief protection assembly comprises: locate in the oil feed intracavity and have the loose axle of through-hole, locate this internal axle bed of oil pressure, set up in the axle bed and with loose axle complex recess, locate control valve in the axle bed just the one end of control valve support lean on in the loose axle and support to lean on in the other end of control valve just extends to the outer relief valve of axle bed.
4. The cylinder protector against overload according to claim 1, wherein the coupling piston is provided with a seal ring between the rear cover and the coupling piston.
5. The cylinder protection device with overload protection according to claim 1, wherein the elastic member includes: the linkage piston comprises a spring seat arranged at one end of the linkage piston and a pressure relief spring sleeved on the spring seat.
6. The cylinder protection device with overload protection as recited in claim 5, wherein the rear cover is provided with a pressure adjusting screw, one end of which extends into the rear cover and pushes against the pressure relief spring.
7. The cylinder protection device with overload protection as recited in claim 1, wherein the micromotion assembly comprises: the linkage plate is arranged on the linkage piston through a bolt, the linkage plate extends out of the oil pressure body, the adjusting screw is arranged on the linkage plate, and the micro switch is arranged on the outer surface of the oil pressure body, and one end of the micro switch is matched with the adjusting screw.
8. The cylinder protector against overload according to claim 1, wherein the oil pressure body is provided with an air drain screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222916684.2U CN218780566U (en) | 2022-11-03 | 2022-11-03 | Oil cylinder protection device with overload protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222916684.2U CN218780566U (en) | 2022-11-03 | 2022-11-03 | Oil cylinder protection device with overload protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218780566U true CN218780566U (en) | 2023-03-31 |
Family
ID=85709302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222916684.2U Active CN218780566U (en) | 2022-11-03 | 2022-11-03 | Oil cylinder protection device with overload protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218780566U (en) |
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2022
- 2022-11-03 CN CN202222916684.2U patent/CN218780566U/en active Active
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