CN107524657B - Highly integrated oil cylinder assembly - Google Patents
Highly integrated oil cylinder assembly Download PDFInfo
- Publication number
- CN107524657B CN107524657B CN201710846168.8A CN201710846168A CN107524657B CN 107524657 B CN107524657 B CN 107524657B CN 201710846168 A CN201710846168 A CN 201710846168A CN 107524657 B CN107524657 B CN 107524657B
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- Prior art keywords
- stop
- cylinder
- hydraulic cylinder
- clamping plate
- piston rod
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- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000007306 turnover Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- F15B15/18—Combined units comprising both motor and pump
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- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a highly integrated oil cylinder assembly. Comprises a cylinder pump integrated mechanism, a mechanical stop mechanism, a mechanical floating mechanism and a limit control mechanism; the cylinder pump integrated mechanism comprises an assembly of a power element hydraulic cylinder and an electric pump, an oil tank is arranged below the hydraulic cylinder, and the oil tank is an oil tank of the electric pump; the front end of the oil tank is connected with a motor; the mechanical stop mechanism comprises a stop clamping plate fixed on the head of a piston rod of the hydraulic cylinder, and a plurality of stop clamping grooves are further formed in the stop clamping plate; and a stop pawl is arranged below the stop clamping plate and fixedly connected with a crank through a pin shaft, and the small oil cylinder is connected with the cylinder pump through an oil pipeline in an integrated structure. The hydraulic overturning system is light and simple in structure, convenient and quick to install and use and capable of well achieving a cab stopping function under the condition that the self-locking function of the hydraulic cylinder is invalid, so that potential safety hazards caused by incapability of stopping the cab are eliminated.
Description
Technical Field
The invention belongs to the field of high-tech light cards, relates to an oil cylinder assembly, and particularly relates to a highly integrated oil cylinder assembly.
Background
The hydraulic turnover mechanism of the cab uses hydraulic pressure as power, and the cab rotates around the turnover shaft to a limited extent through the expansion and contraction of the hydraulic cylinder, so that the lifting and falling of the cab are completed. The turnover oil cylinder assembly is a hydraulic executing element which converts hydraulic energy into mechanical energy and does linear reciprocating motion. The device has simple structure and reliable operation, can avoid a speed reducing device when the device is used for realizing the overturning of the cab, has no transmission gap and moves stably. When the driver stretches out, the driver cab is supported upwards, and the driver cab starts to turn upwards around the turning shaft; when the hydraulic cylinder is contracted, the cab is gradually reduced by the supporting force, and the cab falls back down around the overturning shaft.
However, some currently used hydraulic overturning systems applied to high-tech light-weight projects are heavy and complex, are inconvenient to use, and cannot well realize a cab stopping function under some special conditions or under the condition that the self-locking function of a hydraulic cylinder is invalid, so that certain potential safety hazards are brought. To solve the above-mentioned drawbacks, a solution is now provided.
Disclosure of Invention
The invention aims to provide a highly integrated oil cylinder assembly.
The aim of the invention can be achieved by the following technical scheme:
a highly integrated oil cylinder assembly comprises a cylinder pump integrated mechanism, a mechanical stop mechanism, a mechanical floating mechanism and a limit control mechanism;
the cylinder pump integrated mechanism is an assembly of a hydraulic cylinder and an electric pump, an oil tank is arranged below the hydraulic cylinder, and the oil tank is an oil tank of the electric pump; the electric pump is connected with the oil tank through an oil pipeline; the electric pump is in transmission connection with the motor through a motor output shaft;
The mechanical floating mechanism comprises a hydraulic cylinder which is electrically connected to the motor, a hydraulic cylinder piston rod is arranged in the hydraulic cylinder, and the hydraulic cylinder piston rod is connected with the cab through a swinging rod;
The mechanical stop mechanism comprises a stop clamping plate fixed on the head of a piston rod of the hydraulic cylinder, and a plurality of stop clamping grooves are further formed in the stop clamping plate; a stop pawl is arranged below the stop clamping plate and fixedly connected with a crank through a pin shaft; the crank is connected with the small oil cylinder through a small oil cylinder piston rod on the small oil cylinder, and the small oil cylinder is connected with the cylinder pump integrated structure through an oil pipeline;
the limit control mechanism comprises an upper limit travel switch limit plate arranged at one end of the stop clamping plate, and an upper limit travel switch is arranged at the other end of the stop clamping plate; and the lower limit travel switch limiting plate is arranged at the lower end of the piston rod of the hydraulic cylinder, and the lower limit travel switch is arranged at the lower end of the hydraulic cylinder.
Further, a stop surface is arranged in the stop clamping groove.
Further, a torsion spring is further arranged on the pin shaft.
Further, the crank is hinged with the small oil cylinder piston rod through a connecting rod.
Further, the swinging rods are hinged through a hinge.
Further, the stopping pawl includes an upper fulcrum and a lower fulcrum.
The invention has the beneficial effects that: the hydraulic turnover system is light and simple in structure, convenient and quick to install and use, and can well realize the cab stopping function under special conditions or under the condition that the self-locking function of the hydraulic cylinder is invalid, so that potential safety hazards caused by incapability of stopping the cab are eliminated.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a diagram showing the connection between the crank and the stopping pawl of the present invention;
fig. 4 is a schematic view of a structure of a brake pawl.
1. An upper limit travel switch limit plate; 2. an upper limit travel switch; 3. a lower limit travel switch limit plate; 4. a lower limit travel switch; 5. a connecting rod; 6. a crank; 7. a torsion spring; 8. a stopping pawl; 801. an upper fulcrum; 802. a lower fulcrum; 9. a stop catch plate; 901. a stop slot; 902. a stop surface; 10. a small oil cylinder; 11. a swinging rod; 12. a motor; 13. a hydraulic cylinder; 14. a hinge; 15. a hydraulic cylinder piston rod; 16. a pin shaft; 17. a small oil cylinder piston rod; 18. and an oil tank.
Detailed Description
A highly integrated oil cylinder assembly comprises a cylinder pump integrated mechanism, a mechanical stop mechanism, a mechanical floating mechanism and a limit control mechanism.
The cylinder pump integrated mechanism is an assembly of a hydraulic cylinder 13 and an electric pump, an oil tank 18 is arranged below the hydraulic cylinder 13, and the oil tank 18 is an oil tank 18 of the electric pump; the electric pump is connected with the oil tank 18 through an oil pipeline; the electric pump is in transmission connection with the motor 12 through an output shaft of the motor 12; lifting and falling back of the cab is achieved by controlling the steering of the motor 12 of the electric pump.
The mechanical floating mechanism comprises a hydraulic cylinder 13 electrically connected to a motor 12, a hydraulic cylinder piston rod 15 is arranged in the hydraulic cylinder 13, and the hydraulic cylinder piston rod 15 is connected with a cab through a swing rod 11; a hinge 14 is connected between the swing rods 11, and the two ends of the hydraulic cylinder 13 and the cab are connected by the hinge 14 and can rotate freely. The hydraulic cylinder 13 is driven together with the cab by the swing lever 11 as the cab floats up and down during running.
The mechanical stop mechanism comprises a stop clamping plate 9 fixed at the head of a hydraulic cylinder piston rod 15, the stop clamping plate 9 and the hydraulic cylinder piston rod 15 follow-up, a plurality of stop clamping grooves 901 are further formed in the stop clamping plate 9, and a stop surface 902 is arranged in the stop clamping grooves 901; a stop pawl 8 is arranged below the stop clamping plate 9, the stop pawl 8 comprises an upper fulcrum 801 and a lower fulcrum 802, the stop pawl 8 is fixedly connected with a crank 6 through a pin 16, a torsion spring 7 is further arranged on the pin 16, and the crank 6 and the stop pawl 8 follow each other; the crank 6 is connected with the small oil cylinder 10 through a small oil cylinder piston rod 17 on the small oil cylinder 10, the crank 6 is hinged with the small oil cylinder piston rod 17 through a connecting rod 5, and the small oil cylinder 10 is connected with a cylinder pump integrated structure through an oil pipeline; the small oil cylinder 10 and the torsion spring 7 indirectly control the unlocking and resetting of the stop pawl 8 through the control of the crank 6. When the cab lifts, the small oil cylinder piston rod 17 is in an extending state, the hydraulic cylinder piston rod 15 extends out, and the stop clamping plate 9 is dragged along with the top circular arc of the upper pivot of the stop pawl 8 along with the hydraulic cylinder piston rod 15; when the stop clamping plate 9 moves to the slot hole of the stop clamping groove 901, the stop clamping plate 8 is reset to a free state under the action of the elastic force of the torsion spring 7 and falls into the stop clamping groove 901; when the cab is lifted in place, the stop pawl 8 falls into the stop clamping groove 901 at the extreme end of the stop clamping plate 9, and the upper supporting point 801 is higher than the plane of the stop clamping plate 9;
When the engine and peripheral accessories are maintained, the cab is stopped in mid-air, if the self-locking function of the hydraulic cylinder fails, the piston rod 15 of the hydraulic cylinder can fall back down along with the cab, when the stop surface 902 in the slotted hole of the stop clamping groove 901 contacts the upper supporting point 801 of the stop pawl 8, an acting force is applied to the stop pawl 8 to force the stop pawl 8 to rotate, and when the lower supporting point 802 of the stop pawl 8 contacts the outer wall of the cylinder barrel, the pawl is locked (lever principle) and the cab is stopped;
under normal state, before the cab is retracted, the piston rod of the small oil cylinder 10 is retracted, a pretightening force is applied to the crank 6, the stop pawl 8 rotates to a state that the upper supporting point 801, the lower supporting point 802 and the stop clamping plate 9 are not contacted and kept, and the cab is smoothly retracted.
The limit control mechanism comprises an upper limit travel switch limit plate 1 arranged at one end of a stop clamping plate 9, and an upper limit travel switch 2 arranged at the other end of the stop clamping plate 9; and a lower limit travel switch limit plate 3 arranged at the lower end of the hydraulic cylinder piston rod 15 and a lower limit travel switch 4 arranged at the lower end of the hydraulic cylinder 13. The circuit principles of the upper limit travel switch 2 and the lower limit travel switch 4 are normally closed, and are respectively connected with an upper control branch and a lower control branch of the control circuit in series, when the cab is lifted to the upper limit, the upper limit travel switch limit plate 1 contacts with the contacts of the upper limit travel switch 2, the travel switch circuit is disconnected, the upper branch is powered off, and the motor stops working; conversely, when the cab falls back to the lower limit, the lower limit travel switch limiting plate 3 contacts with the contact of the lower limit travel switch 4, the travel switch circuit is disconnected, the descending branch circuit is powered off, and the motor stops working.
When the cab lifts, the small cylinder piston rod is in an extending state, the hydraulic cylinder piston rod extends out, and the stop clamping plate is dragged along with the top circular arc of the upper pivot of the stop pawl along with the hydraulic cylinder piston rod; when the stop clamping plate moves to the position of the stop clamping groove hole, the stop pawl returns to a free state under the action of the elastic force of the torsion spring 7 and falls into the stop clamping groove; when the cab is lifted in place, the stop pawl falls into a stop clamping groove at the extreme end of the stop clamping plate, and the upper supporting point is higher than the plane of the stop clamping plate; when the engine and peripheral accessories thereof are maintained, the cab is stopped in mid-air, if the self-locking function of the hydraulic cylinder fails, the piston rod of the hydraulic cylinder can fall back down along with the cab, when the stop surface in the stop slot hole contacts with the upper pivot of the stop pawl, an acting force is applied to the stop pawl to force the stop pawl to rotate, and when the lower pivot of the stop pawl contacts with the outer wall of the cylinder barrel, the pawl is locked (lever principle), and the cab is stopped; under normal state, before the cab is retracted, the piston rod of the small oil cylinder is retracted, a pretightening force is applied to the crank, the stop pawl is kept in a non-contact state with the stop clamping plate along with the rotation to the upper pivot and the lower pivot, and the cab is smoothly retracted. The hydraulic turnover system is light and simple in structure, convenient and quick to install and use, and can well realize the cab stopping function under special conditions or under the condition that the self-locking function of the hydraulic cylinder is invalid, so that potential safety hazards caused by incapability of stopping the cab are eliminated.
The foregoing is merely illustrative of the structures of this invention and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the invention or from the scope of the invention as defined in the accompanying claims.
Claims (3)
1. The highly integrated oil cylinder assembly is characterized by comprising a cylinder pump integrated mechanism, a mechanical stop mechanism, a mechanical floating mechanism and a limit control mechanism;
The cylinder pump integrated mechanism is an assembly of a hydraulic cylinder (13) and an electric pump, an oil tank (18) is arranged below the hydraulic cylinder (13), and the oil tank (18) is an oil tank (18) of the electric pump; the electric pump is connected with the oil tank (18) through an oil pipeline; the electric pump is in transmission connection with the motor (12) through an output shaft of the motor (12);
The mechanical floating mechanism comprises a hydraulic cylinder (13) connected to a motor (12) on the electric pump through an oil pipeline, a hydraulic cylinder piston rod (15) is arranged in the hydraulic cylinder (13), and the hydraulic cylinder piston rod (15) is connected with a cab through a swinging rod (11);
The mechanical stop mechanism comprises a stop clamping plate (9) fixed at the head of a piston rod (15) of the hydraulic cylinder, and a plurality of stop clamping grooves (901) are further formed in the stop clamping plate (9); a stop pawl (8) is arranged below the stop clamping plate (9), and the stop pawl (8) is fixedly connected with a crank (6) through a pin shaft (16); the crank (6) is connected with the small oil cylinder (10) through a small oil cylinder piston rod (17) on the small oil cylinder (10), and the small oil cylinder (10) is connected with the cylinder pump integrated structure through an oil pipeline;
The limit control mechanism comprises an upper limit travel switch limit plate (1) arranged at one end of a stop clamping plate (9) and an upper limit travel switch (2) arranged at the other end of the stop clamping plate (9); the lower limit travel switch limiting plate (3) is arranged at the lower end of the hydraulic cylinder piston rod (15) and the lower limit travel switch (4) is arranged at the lower end of the hydraulic cylinder (13);
A torsion spring (7) is further arranged on the pin shaft (16);
the crank (6) is hinged with a small oil cylinder piston rod (17) through a connecting rod (5);
The stop pawl (8) comprises an upper fulcrum (801) and a lower fulcrum (802).
2. A highly integrated cylinder assembly according to claim 1, characterized in that the stop catch (901) is provided with a stop surface (902).
3. A highly integrated cylinder assembly according to claim 1, characterized in that the swinging rods (11) are hinged by means of hinges (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710846168.8A CN107524657B (en) | 2017-09-19 | 2017-09-19 | Highly integrated oil cylinder assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710846168.8A CN107524657B (en) | 2017-09-19 | 2017-09-19 | Highly integrated oil cylinder assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107524657A CN107524657A (en) | 2017-12-29 |
| CN107524657B true CN107524657B (en) | 2024-05-14 |
Family
ID=60736048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710846168.8A Active CN107524657B (en) | 2017-09-19 | 2017-09-19 | Highly integrated oil cylinder assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107524657B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439878B (en) * | 2019-06-27 | 2022-10-18 | 北京安泰隆机电技术有限公司 | Hydraulic bolt mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203078615U (en) * | 2013-01-09 | 2013-07-24 | 安徽江淮汽车股份有限公司 | Heavy truck cab turnover device |
| CN204279667U (en) * | 2014-12-11 | 2015-04-22 | 襄阳群龙汽车部件股份有限公司 | A kind of hydraulic lifting turning device of automobile cab |
| CN104925146A (en) * | 2015-04-01 | 2015-09-23 | 安徽德鸿机件制造有限公司 | Integrated overturn electric hydraulic pump cylinder for cab of heavy truck |
| CN207261356U (en) * | 2017-09-19 | 2018-04-20 | 安徽德鸿机件制造有限公司 | A kind of highly integrated hydraulic cylinder assembly |
-
2017
- 2017-09-19 CN CN201710846168.8A patent/CN107524657B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203078615U (en) * | 2013-01-09 | 2013-07-24 | 安徽江淮汽车股份有限公司 | Heavy truck cab turnover device |
| CN204279667U (en) * | 2014-12-11 | 2015-04-22 | 襄阳群龙汽车部件股份有限公司 | A kind of hydraulic lifting turning device of automobile cab |
| CN104925146A (en) * | 2015-04-01 | 2015-09-23 | 安徽德鸿机件制造有限公司 | Integrated overturn electric hydraulic pump cylinder for cab of heavy truck |
| CN207261356U (en) * | 2017-09-19 | 2018-04-20 | 安徽德鸿机件制造有限公司 | A kind of highly integrated hydraulic cylinder assembly |
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| Publication number | Publication date |
|---|---|
| CN107524657A (en) | 2017-12-29 |
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