CN205225935U - Hydraulic hoist machine hydro -cylinder rotation type locking device - Google Patents
Hydraulic hoist machine hydro -cylinder rotation type locking device Download PDFInfo
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- CN205225935U CN205225935U CN201521125353.0U CN201521125353U CN205225935U CN 205225935 U CN205225935 U CN 205225935U CN 201521125353 U CN201521125353 U CN 201521125353U CN 205225935 U CN205225935 U CN 205225935U
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- hole
- fixed plate
- master cylinder
- locking lever
- circular
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Abstract
The utility model relates to a hydraulic hoist machine hydro -cylinder rotation type locking device, the fixed plate is installed to the master cylinder internal rotation, and it has the through -hole to open on the fixed plate, and the through -hole is linked together by two circular through -holes that lie in on the same circular arc and forms, and the locking lever passes through -hole and master cylinder sliding connection, the through -hole includes the circular through -hole of first circular through -hole and second, and locking lever one end is equipped with the shaft shoulder, and the radius of first circular through -hole equals the cross section radius of locking lever, and the radius of the circular through -hole of second is greater than the cross section radius of the shaft shoulder, the fixed plate passes through the rotation driving device drive and rotates. The utility model discloses a hydraulic hoist machine hydro -cylinder rotation type locking device uses the round pin axle to do the circular motion as the centre of a circle through rotating the fixed plate, realizes the unblock state and the switching of lock -out state of locking lever, has good locking function, easy operation, and long service life, the locking function is stable, and the effectual gliding that prevents hydraulic cylinder of ability has improved hydraulic cylinder's security performance, and is just with low costs, has fine commercial promise.
Description
Technical field
The utility model relates to hydraulic hoist technical field, especially relates to the rotary locking device of a kind of oil cylinder of hydraulic headstock gear.
Background technique
The locking device of existing oil cylinder of hydraulic headstock gear, rely on the cylinder side valve block of oil cylinder of hydraulic headstock gear to lock, this locking device comprises valve member and block, the lock-off of oil cylinder of hydraulic headstock gear and the function of locking is realized by the open and close of valve member inner spool, and two shortcomings that such locking device exists: on the one hand because valve member inherently allows the problem of leakage, and spool relies on the compression of spring to promote, when spool moves reciprocatingly in valve body, spool produces certain wearing and tearing, leakage rate is increased, spring also produces fatigue deformation simultaneously, spool is caused to run not in place, thus cause locking device well can not lock oil cylinder of hydraulic headstock gear, cause the downslide of oil cylinder of hydraulic headstock gear.On the other hand, once there is impurity in fluid, easily cause the blocking of spool, spring can not be replied, and shortens the working life of valve member.
Model utility content
The technical problems to be solved in the utility model is: in order to overcome the problem that locking device stability is low, working life is short that existing oil cylinder of hydraulic headstock gear uses, provide a kind of oil cylinder of hydraulic headstock gear rotary locking device.
The utility model solves the technological scheme that its technical problem adopts: the rotary locking device of a kind of oil cylinder of hydraulic headstock gear, comprise master cylinder and locking lever, fixed plate is rotatablely equipped with in described master cylinder, described fixed plate has through hole, described through hole is connected by the manhole that two are positioned on same circular arc and forms, also comprise upper and lower two circular arcs tangent with two manholes, described locking lever is slidably connected through described through hole and described master cylinder;
Described through hole comprises the first manhole and the second manhole, and described locking lever one end is provided with the shaft shoulder, and the radius of described first manhole equals the cross sectional radius of described locking lever, and the radius of described second manhole is greater than the cross sectional radius of the described shaft shoulder;
Described fixed plate is driven by rotating driving device and rotates.
Further, be provided with support in described master cylinder body, described support is rotatablely equipped with pivot pin, described pivot pin is fixedly connected with described fixed plate, and rotating shaft pin can realize the rotation of fixed plate.
Described rotating driving device comprises rotatingshaft, one end of described rotatingshaft is fixedly connected with described pivot pin, the other end is installed with the first bevel gear, described master cylinder external stability is provided with motor, the output terminal of described motor is arranged on described master cylinder inside, the output terminal of described motor is installed with the second bevel gear, described second bevel gear engages with described first bevel gear, the rotation of motor drives the second bevel gear to rotate, second bevel gear drives the first bevel gear to rotate, the rotation of the rotating band moving axis pin of the first bevel gear, pivot pin finally drives fixed plate to be that circular motion is done in the center of circle with bearing pin.
Further, the output terminal of described motor is connected with speed reducer, and the output terminal of described speed reducer fixedly mounts the second bevel gear.
Further, described pivot pin and fixed plate are equipped with keyway, in described keyway, are provided with flat key.
Before using, locking lever is located in the second manhole of through hole, and locking lever is in released state, starting electrical machinery, motor output end rotates, after speed reducer, rotating speed is slack-off, the second bevel gear is driven to rotate, second bevel gear drives the first bevel gear to rotate, the rotation of the rotating band moving axis pin of the first bevel gear, after pivot pin finally drives fixed plate to turn an angle, locking lever is in the first manhole on fixed plate in through hole, radius due to the first manhole is less than the cross sectional radius of the shaft shoulder, therefore when master cylinder causes main oil cylinder piston bar to glide due to internal leakage or other reasons, main oil cylinder piston bar drives locking lever descending, when the shaft shoulder of locking lever can be against on fixed plate to stop locking lever to continue to glide, thus prevent the piston rod in master cylinder from gliding, start lock function.
The beneficial effects of the utility model are: the rotary locking device of oil cylinder of hydraulic headstock gear of the present utility model is that circular motion is done in the center of circle by rotating fixed plate with bearing pin, realize the released state of locking lever and the switching of lock state, there is good lock function, simple to operate, long service life, lock function is stablized, effectively can prevent the downslide of hydraulic jack, improve the Safety performance of hydraulic jack, and cost is low, there is good commercial promise.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is two-dimentional sectional view of the present utility model;
Fig. 2 is the enlarged view at A place in the utility model Fig. 1;
Fig. 3 is the two-dimentional sectional view of the utility model released state;
Fig. 4 is the two-dimentional sectional view of the utility model lock state.
In figure: 1. master cylinder, 2. locking lever, 3. fixed plate, 4. through hole, 5. the first manhole, 6. the second manhole, the 7. shaft shoulder, 8. support, 9. pivot pin, 10. rotatingshaft, 11. first bevel gears, 12. motors, 13. second bevel gears, 14. speed reducers, 15. flat keys.
Embodiment
The utility model is described in more detail by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
The rotary locking device of a kind of oil cylinder of hydraulic headstock gear as depicted in figs. 1 and 2, comprise master cylinder 1 and locking lever 2, support 8 is provided with in master cylinder 1 body, support 8 is rotatablely equipped with pivot pin 9, pivot pin 9 and fixed plate 3 are equipped with keyway, be provided with flat key 15 in keyway, pivot pin 9 is fixedly connected with fixed plate 3, and rotating shaft pin 9 can realize fixed plate 3 with bearing pin 9 for doing circular motion in the center of circle.
Fixed plate 3 has through hole 4, through hole 4 is connected by the manhole that two are positioned on same circular arc and forms, and also comprise upper and lower two circular arcs tangent with two manholes, locking lever 2 is slidably connected through through hole 4 and master cylinder 1; Through hole 4 comprises the first manhole 5 and the second manhole 6, and locking lever 2 one end is provided with the shaft shoulder 7, and the radius of the first manhole 5 equals the cross sectional radius of locking lever 2, and the radius of the second manhole 6 is greater than the cross sectional radius of the shaft shoulder 7;
Fixed plate 3 is driven by rotating driving device and rotates.Rotating driving device comprises rotatingshaft 10, one end of rotatingshaft 10 is fixedly connected with pivot pin 9, the other end is installed with the first bevel gear 11, master cylinder 1 external stability is provided with motor 12, the output terminal of motor 12 is connected with speed reducer 14, the output terminal of speed reducer 14 is arranged on master cylinder 1 inside, the output terminal of speed reducer 14 fixedly mounts the second bevel gear 13, second bevel gear 13 engages with the first bevel gear 11, the rotation of motor 12 drives the second bevel gear 13 to rotate, second bevel gear 13 drives the first bevel gear 11 to rotate, the rotation of the rotating band moving axis pin 9 of the first bevel gear 11, pivot pin 9 finally drives fixed plate 3 to rotate.
Before using, locking lever 2 is located in the second manhole 6 of through hole 4, and locking lever 2 is in released state, as shown in Figure 3, starting electrical machinery 12, motor 12 output terminal rotates, after speed reducer 14, rotating speed is slack-off, the second bevel gear 13 is driven to rotate, second bevel gear 13 drives the first bevel gear 11 to rotate, the rotation of the rotating band moving axis pin 9 of the first bevel gear 11, after pivot pin 9 finally drives fixed plate 3 to turn an angle, locking lever 2 is in the first manhole 5 on fixed plate 3 in through hole 4, as shown in Figure 4, radius due to the first manhole 5 is less than the cross sectional radius of the shaft shoulder 7, therefore when master cylinder 1 causes master cylinder 1 piston rod to glide due to internal leakage or other reasons, master cylinder 1 piston rod drives locking lever 2 descending, when the shaft shoulder 7 of locking lever 2 can be against on fixed plate 3 to stop locking lever 2 to continue to glide, thus prevent the piston rod in master cylinder 1 from gliding, play lock function.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (5)
1. the rotary locking device of oil cylinder of hydraulic headstock gear, it is characterized in that: comprise master cylinder (1) and locking lever (2), fixed plate (3) is rotatablely equipped with in described master cylinder (1), described fixed plate (3) has through hole (4), described through hole (4) is connected by the manhole that two are positioned on same circular arc and forms, and described locking lever (2) is slidably connected through described through hole (4) and described master cylinder (1);
Described through hole (4) comprises the first manhole (5) and the second manhole (6), described locking lever (2) one end is provided with the shaft shoulder (7), the radius of described first manhole (5) equals the cross sectional radius of described locking lever (2), and the radius of described second manhole (6) is greater than the cross sectional radius of the described shaft shoulder (7);
Described fixed plate (3) is driven by rotating driving device and rotates.
2. the rotary locking device of oil cylinder of hydraulic headstock gear as claimed in claim 1, it is characterized in that: in described master cylinder (1) body, be provided with support (8), described support (8) is rotatablely equipped with pivot pin (9), described pivot pin (9) is fixedly connected with described fixed plate (3).
3. the rotary locking device of oil cylinder of hydraulic headstock gear as claimed in claim 2, it is characterized in that: described rotating driving device comprises rotatingshaft (10), one end of described rotatingshaft (10) is fixedly connected with described pivot pin (9), the other end is installed with the first bevel gear (11), described master cylinder (1) external stability is provided with motor (12), the output terminal of described motor (12) is arranged on described master cylinder (1) inside, the output terminal of described motor (12) is installed with the second bevel gear (13), described second bevel gear (13) is engaged with described first bevel gear (11).
4. the rotary locking device of oil cylinder of hydraulic headstock gear as claimed in claim 3, it is characterized in that: the output terminal of described motor (12) is connected with speed reducer (14), the output terminal of described speed reducer (14) is arranged on described master cylinder (1) inside, and the output terminal of described speed reducer (14) fixedly mounts the second bevel gear (13).
5. the rotary locking device of oil cylinder of hydraulic headstock gear as claimed in claim 2, is characterized in that: described pivot pin (9) and fixed plate (3) are equipped with keyway, are provided with flat key (15) in described keyway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521125353.0U CN205225935U (en) | 2015-12-29 | 2015-12-29 | Hydraulic hoist machine hydro -cylinder rotation type locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521125353.0U CN205225935U (en) | 2015-12-29 | 2015-12-29 | Hydraulic hoist machine hydro -cylinder rotation type locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205225935U true CN205225935U (en) | 2016-05-11 |
Family
ID=55901004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521125353.0U Withdrawn - After Issue CN205225935U (en) | 2015-12-29 | 2015-12-29 | Hydraulic hoist machine hydro -cylinder rotation type locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205225935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422548A (en) * | 2015-12-29 | 2016-03-23 | 常州液压成套设备厂有限公司 | Oil cylinder rotation type locking device of hydraulic opening and closing machine |
-
2015
- 2015-12-29 CN CN201521125353.0U patent/CN205225935U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422548A (en) * | 2015-12-29 | 2016-03-23 | 常州液压成套设备厂有限公司 | Oil cylinder rotation type locking device of hydraulic opening and closing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160511 Effective date of abandoning: 20170825 |
|
| AV01 | Patent right actively abandoned |