CN212536471U - Hydraulic clutch - Google Patents
Hydraulic clutch Download PDFInfo
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- CN212536471U CN212536471U CN202021943557.6U CN202021943557U CN212536471U CN 212536471 U CN212536471 U CN 212536471U CN 202021943557 U CN202021943557 U CN 202021943557U CN 212536471 U CN212536471 U CN 212536471U
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- rolling bearing
- outer shell
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model provides a hydraulic clutch, it includes first shell body, the second shell body, the piston body, first antifriction bearing, the initiative end central body, friction drive mechanism, driven end central body and second antifriction bearing, the bottom of first shell body and the top fixed connection of second shell body, the upper portion inboard of first shell body is provided with annular sealing ring, the inboard outside of the lower part of first shell body stretches out and forms a ring channel with the sealing ring of top, the outside of piston body covers on the ring channel, the ring channel is sealed completely to the piston body, the piston body sets up a lug in the ring channel, the lug is outside protruding to with first shell body in close contact with, the lug separates the ring channel for A chamber and B chamber. The utility model has the advantages of simple structure, design benefit, can make the clutch have different functions, can the initiative control pressure oil enter which chamber according to the difference of selecting the oil feed oil chamber.
Description
Technical Field
The utility model belongs to the field of machinery, be about a hydraulic clutch very much.
Background
In the hydraulic clutch in the prior art, the action of closing and transmitting the working torque is generally realized by pushing a piston to press a friction plate through a pressurized fluid medium, when the pressurized fluid medium is disconnected, a compression spring is released to urge the piston to reset, the action of separating is completed, the friction plate is separated, and the torque transmission is cut off.
The hydraulic clutch with only one oil cavity structurally has the following defects: 1) once the return spring is determined, only a fixed force and a fixed torque can be transmitted; 2) the friction plate is generally large in size, and the clutch is complex in structure; 3) the number of pairs of friction surfaces is large, so that the clutch flexibility is influenced; 4) wet environment, the friction coefficient is reduced.
The hydraulic clutch with the double-oil cavity structure has the advantages that one cavity is a bearing lubricating cavity and is communicated with a friction plate, so that the control cannot be realized, and only one back pressure can be provided; some of the driving parts realize variable torque and speed regulation transmission through the pressure difference between the driving cavity and the back pressure cavity, highlight the proportional relation of the pressures of the driving cavity and the back pressure cavity, and the piston is used as a pressing mechanism to supply oil through a central rotary joint, and the driving parts are integrated and rotate no matter what the parts are separated or combined.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, design benefit, have two oil pocket structures, can the initiative control pressure oil advance which oil pocket, can be according to the different hydraulic clutch that can make the clutch produce different functions of selection oil feed oil pocket.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a hydraulic clutch comprises a first outer shell, a second outer shell, a piston body, a first rolling bearing, a driving end central body, a friction transmission mechanism, a driven end central body and a second rolling bearing,
the first outer shell, the second outer shell and the piston body are all of annular structures;
the bottom of the first outer shell is fixedly connected with the top of the second outer shell, an annular sealing ring is arranged on the inner side of the upper part of the first outer shell, and the inner side of the lower part of the first outer shell extends outwards to form an annular groove with the sealing ring above;
the outer side of the piston body covers the annular groove, the piston body completely seals the annular groove, a lug is arranged in the annular groove and protrudes outwards to be in close contact with the first outer shell, and the lug divides the annular groove into an A cavity and a B cavity;
a first oil inlet and a second oil inlet are respectively arranged at positions, corresponding to the cavity A and the cavity B, on the first outer shell, and the first oil inlet and the second oil inlet are respectively communicated with the cavity A and the cavity B;
the outer side of the first rolling bearing is connected with the inner ring of the piston body, the inner side of the first rolling bearing is connected with the driving end central body, the driving end central body can rotate in the first rolling bearing, and the piston body does not rotate;
one end part of the driving end central body can be in split contact with the driven end central body through the friction transmission mechanism;
the second rolling bearing is sleeved outside the driven end central body, the driven end central body can rotate in the second rolling bearing, the second rolling bearing is fixed on the second outer shell,
when pressure oil is injected into the cavity A through the first oil inlet (1a), the piston body drives the driving end central body to approach and contact the driven end central body, and the driving end central body transmits torque to the driven end central body through the friction transmission mechanism;
when pressure oil is injected into the cavity B through the second oil inlet (1B), the piston body drives the driving end central body and the driven end central body to be separated and far away, and the driven end central body stops rotating.
Further, the device also comprises a first thrust bearing and a second thrust bearing,
the first thrust bearing is arranged between the driving end central body and the piston body, and the first thrust bearing and the first rolling bearing support the driving end central body to rotate;
the second thrust bearing is arranged between the driven end central body and the second outer shell, and the second thrust bearing and the second rolling bearing support the driven end central body to rotate.
Furthermore, the device also comprises a first retainer ring, a pressing disc, a distance ring, a second retainer ring and a pressing plate,
the first rolling bearings are arranged in a pair, the bottoms of the first rolling bearings on the lower side are positioned with the step on the driving end central body through the piston body, the first rolling bearings on the upper side are positioned with the pressing disc through the first retainer ring, the two first rolling bearings are positioned in a matching way through the distance ring,
the first retainer ring is nested in the piston body and is pressed against the top of the first rolling bearing, and the pressing disc is sleeved on the driving end central body and is pressed against the top of the first rolling bearing;
the top of the second rolling bearing is positioned through the driven end central body and the step on the second outer shell, the bottom of the second rolling bearing is positioned through the second retainer ring and the pressing plate, the second retainer ring is nested in the driven end central body and tightly pressed at the bottom of the second rolling bearing, and the pressing plate is fixed on the second outer shell and tightly pressed at the bottom of the second rolling bearing.
Furthermore, the convex block on the piston body is in a shape like a Chinese character 'tu', and the piston body is provided with sealing rings at the contact parts with the sealing rings and the first outer shell.
Further, it still includes reset spring, reset spring sets up in A intracavity or B intracavity.
Furthermore, the friction transmission mechanism is a conical friction disc, the conical friction disc is fixedly connected with the end part of the driven end central body, and the end part of the driving end central body, which is close to the conical friction disc, is provided with a matched conical surface.
Further, the device also comprises a hydraulic pump, an oil tank, an overflow valve and a three-position four-way valve,
one end of the hydraulic pump is connected with the oil tank, the other end of the hydraulic pump is connected with one end of the overflow valve,
the other end of the overflow valve is connected with the three-position four-way valve, the overflow valve can adjust the oil pressure of pressure oil,
the left side of the three-position four-way valve is connected with the first oil inlet, the right side of the three-position four-way valve is connected with the second oil inlet,
when the left side of the three-position four-way valve is electrified, pressure oil enters the cavity A through the first oil inlet, and after the driving end central body is driven by the piston body to be jointed with the friction transmission mechanism, the three-position four-way valve reaches the middle position;
when the right side of the three-position four-way valve is electrified, pressure oil enters a cavity B through a second oil inlet, and the piston body drives the driving end central body to be separated from the friction transmission mechanism, so that the three-position four-way valve reaches a middle position.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. simple structure, ingenious design, and convenient industrial manufacture and large-scale popularization.
2. The hydraulic oil pressure is adjusted, so that the transmission requirements of different working conditions and torques can be met.
3. The conical surface friction structure is adopted, the friction coefficient cannot be reduced, the structure is simpler, and the clutch flexibility is not influenced.
4. The driving end part, the driven end part and the pressing and operating mechanism are independent modular units, and the structure is simple and compact, and the rotational inertia is small.
5. In any working or non-working state, the double-cavity oil pressure active control is adopted, the A, B cavity is filled with oil, the system is in flexible contact, the connection is stable, the separation is thorough, and no impact exists.
6. The piston body does not rotate, is used as a part of an independent sealing cavity and is connected with the driving end central body through a bearing, and the rotation of the driving end central body is not influenced.
Drawings
Fig. 1 is a schematic structural view of the hydraulic clutch of the present invention;
FIG. 2 is a schematic structural view of a hydraulic clutch according to the present invention, in which a return spring is disposed in the cavity A;
FIG. 3 is a schematic structural view of a hydraulic clutch according to the present invention, wherein a return spring is disposed in a cavity B;
fig. 4 is a schematic diagram of an oil path structure in the hydraulic clutch of the present invention.
Reference numerals: the device comprises a first outer shell 1, a second outer shell 2, a piston body 3, a first rolling bearing 4, a driving end central body 5, a friction transmission mechanism 6, a driven end central body 7, a second rolling bearing 8, a first thrust bearing 9, a second thrust bearing 10, a first retainer ring 11, a pressing disc 12, a distance ring 13, a second retainer ring 14, a pressing plate 15, a return spring 16, a hydraulic pump 17, an oil tank 18, an overflow valve 19, a three-position four-way valve 20, a first oil inlet 1a, a second oil inlet 1b and a sealing ring 1 c.
Detailed Description
To further illustrate the technical means adopted and the technical effects achieved by the present invention, the following detailed description is made with reference to the accompanying drawings and examples.
Referring to fig. 1 to 4, the present invention provides a hydraulic clutch, which includes a first outer housing 1, a second outer housing 2, a piston body 3, a first rolling bearing 4, a driving end central body 5, a friction transmission mechanism 6, a driven end central body 7, and a second rolling bearing 8. The first outer casing 1, the second outer casing 2 and the piston body 3 are all of annular configuration. The bottom of the first outer shell 1 is fixedly connected with the top of the second outer shell 2, an annular sealing ring 1c is arranged on the inner side of the upper part of the first outer shell 1, and the inner side of the lower part of the first outer shell 1 extends outwards to form an annular groove with the sealing ring 1c above.
The outer side of the piston body 3 covers on the annular groove, the piston body 3 completely seals the annular groove, a lug is arranged in the annular groove of the piston body 3, the lug protrudes outwards to be in close contact with the first outer shell body 1, and the lug divides the annular groove into an A cavity and a B cavity. The first outer shell 11 is provided with a first oil inlet 1a and a second oil inlet 1B corresponding to the cavity A and the cavity B, and the first oil inlet 1a and the second oil inlet 1B are communicated with the cavity A and the cavity B respectively.
The outer side of the first rolling bearing 4 is connected with the inner ring of the piston body 3, the inner side of the first rolling bearing 4 is connected with the driving end central body 5, the driving end central body 5 can rotate in the first rolling bearing 4, and the piston body 3 does not rotate.
One end part of the driving end central body 5 can be in contact with the driven end central body 7 in a separable way through a friction transmission mechanism 6.
The second rolling bearing 8 is sleeved outside the driven end central body 7, the driven end central body 7 can rotate in the second rolling bearing 8, and the second rolling bearing 8 is fixed on the second outer shell 2.
When pressure oil is injected into the cavity A through the first oil inlet 1a, the piston body 3 drives the driving end central body 5 to approach and contact the driven end central body 7, and the driving end central body 5 transmits torque to the driven end central body 7 through the friction transmission mechanism 6;
when pressure oil is injected into the cavity B through the second oil inlet 1B, the piston body 3 drives the driving end central body 5 and the driven end central body 7 to be separated and far away, and the driven end central body 7 stops rotating, so that the braking function is realized.
The utility model discloses a two-chamber oil pressure control, can the active control closed with break away from the state, a key switches.
In one embodiment, the hydraulic clutch further comprises a first thrust bearing 9 and a second thrust bearing 10.
The first thrust bearing 9 is arranged between the driving end central body 5 and the piston body 3, and the first thrust bearing 9 and the first rolling bearing 4 support the driving end central body 5 to rotate;
a second thrust bearing 10 is arranged between the driven end central body 7 and the second outer housing 2, the second thrust bearing 10 and the second rolling bearing 8 support the driven end central body 7 for rotation.
In one embodiment, the hydraulic clutch further comprises a first retainer ring 11, a pressure plate 12, a distance ring 13, a second retainer ring 14 and a pressure plate 15.
The first rolling bearings 4 are arranged in a pair, the bottom of the first rolling bearing 4 at the lower side is positioned with a step on the driving end central body 5 through the piston body 3, the first rolling bearing 4 at the upper side is positioned with the pressing disc 12 through the first retainer ring 11, the two first rolling bearings 4 are positioned in a matching way through the distance ring 13,
the first retainer ring 11 is nested in the piston body 3, the first retainer ring 11 is pressed on the top of the first rolling bearing 4, and the pressing disc 12 is sleeved on the driving end center body 5 and pressed on the top of the first rolling bearing 4;
the top of the second rolling bearing 8 is positioned by the driven end central body 7 and the step on the second outer housing 2, the bottom of the second rolling bearing 8 is positioned by the second retainer ring 14 and the pressure plate 15,
the second retainer ring 14 is nested in the driven end central body 7, the second retainer ring 14 is pressed on the bottom of the second rolling bearing 8, and the pressing plate 15 is fixed on the second outer shell 2 and pressed on the bottom of the second rolling bearing 8.
In one embodiment, the projection on the piston body 3 is in the shape of a "convex" and the piston body 3 is provided with a sealing ring at the contact part with the sealing ring 1c and the first outer housing 1.
In one embodiment, the hydraulic clutch further includes a return spring 16, the return spring 16 being disposed in either the a cavity or the B cavity.
When the reset spring 16 is arranged in the cavity A, the hydraulic clutch is in a normally closed mode, and the driving end central body 5 and the driven end central body 7 can be quickly closed when the cavity A is filled with oil, so that the closing speed and the pressing force are improved;
when the reset spring 16 is arranged in the cavity B, the hydraulic clutch is in a normally open mode, and the driving end central body 5 and the driven end central body 7 can be quickly separated when the cavity B is filled with oil, so that the separation speed is increased, and the reliability is high.
In one embodiment, the friction drive mechanism 6 is a conical friction disk fixedly attached to the end of the driven end central body 7, and the end of the driving end central body 5 adjacent to the conical friction disk is configured as a matching conical surface.
In one embodiment, the hydraulic clutch further includes a hydraulic pump 17, a tank 18, a relief valve 19, and a three-position, four-way valve 20.
One end of the hydraulic pump 17 is connected with the oil tank 18, the other end of the hydraulic pump is connected with one end of the overflow valve 19, the other end of the overflow valve 19 is connected with the three-position four-way valve 20, the overflow valve 19 can adjust the oil pressure of the pressure oil, the left side of the three-position four-way valve 20 is connected with the first oil inlet 1a, and the right side of the three-position four-way valve 20 is connected with the second oil inlet.
When the left side of the three-position four-way valve 20 is electrified, pressure oil enters the cavity A through the first oil inlet 1a, and after the driving end central body 5 is driven by the piston body 3 to be jointed with the friction transmission mechanism 6, the three-position four-way valve 20 reaches the middle position;
when the right side of the three-position four-way valve 20 is electrified, the pressure oil enters the cavity B through the second oil inlet 1B, the piston body 3 drives the driving end center body 5 to be separated from the friction transmission mechanism 6, and then the three-position four-way valve 20 reaches the middle position.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. A hydraulic clutch, characterized by: which comprises a first outer shell (1), a second outer shell (2), a piston body (3), a first rolling bearing (4), a driving end central body (5), a friction transmission mechanism (6), a driven end central body (7) and a second rolling bearing (8),
the first outer shell (1), the second outer shell (2) and the piston body (3) are all of annular structures;
the bottom of the first outer shell (1) is fixedly connected with the top of the second outer shell (2), an annular sealing ring (1c) is arranged on the inner side of the upper part of the first outer shell (1), and the inner side of the lower part of the first outer shell (1) extends outwards to form an annular groove with the sealing ring (1c) above;
the outer side of the piston body (3) covers the annular groove, the annular groove is completely sealed by the piston body (3), a convex block is arranged in the annular groove of the piston body (3), the convex block protrudes outwards to be in close contact with the first outer shell (1), and the annular groove is divided into an A cavity and a B cavity by the convex block;
a first oil inlet (1a) and a second oil inlet (1B) are respectively arranged on the first outer shell (1) corresponding to the cavity A and the cavity B, and the first oil inlet (1a) and the second oil inlet (1B) are respectively communicated with the cavity A and the cavity B;
the outer side of the first rolling bearing (4) is connected with the inner ring of the piston body (3), the inner side of the first rolling bearing (4) is connected with the driving end central body (5), the driving end central body (5) can rotate in the first rolling bearing (4), and the piston body (3) does not rotate;
one end part of the driving end central body (5) can be in separable contact with the driven end central body (7) through the friction transmission mechanism (6);
the second rolling bearing (8) is sleeved on the outer side of the driven end central body (7), the driven end central body (7) can rotate in the second rolling bearing (8), the second rolling bearing (8) is fixed on the second outer shell (2),
when pressure oil is injected into the cavity A through the first oil inlet (1a), the piston body (3) drives the driving end central body (5) to approach and contact the driven end central body (7), and the driving end central body (5) transmits torque to the driven end central body (7) through the friction transmission mechanism (6);
when pressure oil is injected into the cavity B through the second oil inlet (1B), the piston body (3) drives the driving end central body (5) and the driven end central body (7) to be separated and far away, and the driven end central body (7) stops rotating.
2. The hydraulic clutch of claim 1, wherein: it also comprises a first thrust bearing (9) and a second thrust bearing (10),
the first thrust bearing (9) is arranged between the driving end central body (5) and the piston body (3), and the first thrust bearing (9) and the first rolling bearing (4) support the driving end central body (5) to rotate;
the second thrust bearing (10) is arranged between the driven end central body (7) and the second outer shell (2), and the second thrust bearing (10) and the second rolling bearing (8) support the driven end central body (7) to rotate.
3. The hydraulic clutch of claim 2, wherein: it also comprises a first retainer ring (11), a pressing disc (12), a distance ring (13), a second retainer ring (14) and a pressure plate (15),
the first rolling bearings (4) are arranged in a pair, the bottoms of the first rolling bearings (4) on the lower side are positioned with the steps on the driving end central body (5) through the piston body (3), the first rolling bearings (4) on the upper side are positioned with the pressing disc (12) through the first retainer ring (11), and the two first rolling bearings (4) are positioned in a matched mode through the distance ring (13),
the first retainer ring (11) is nested in the piston body (3), the first retainer ring (11) is pressed on the top of the first rolling bearing (4), and the pressing disc (12) is sleeved on the driving end central body (5) and pressed on the top of the first rolling bearing (4);
the top of the second rolling bearing (8) is positioned by the driven end central body (7) and the step on the second outer shell (2), the bottom of the second rolling bearing (8) is positioned by the second retainer ring (14) and the pressure plate (15),
the second retainer ring (14) is nested in the driven end central body (7), the second retainer ring (14) is pressed at the bottom of the second rolling bearing (8), and the pressing plate (15) is fixed on the second outer shell (2) and pressed at the bottom of the second rolling bearing (8).
4. The hydraulic clutch of claim 1, wherein: the convex block on the piston body (3) is in a shape like a Chinese character 'tu', and the contact part of the piston body (3) with the sealing ring (1c) and the first outer shell (1) is provided with a sealing ring.
5. The hydraulic clutch of claim 1, wherein: the device also comprises a return spring (16), wherein the return spring (16) is arranged in the cavity A or the cavity B.
6. The hydraulic clutch of claim 1, wherein: the friction transmission mechanism (6) is a conical friction disc, the conical friction disc is fixedly connected with the end part of the driven end central body (7), and the end part of the driving end central body (5) close to the conical friction disc is provided with a matched conical surface.
7. The hydraulic clutch of claim 1, wherein: it also comprises a hydraulic pump (17), an oil tank (18), an overflow valve (19) and a three-position four-way valve (20),
one end of the hydraulic pump (17) is connected with the oil tank (18), the other end is connected with one end of the overflow valve (19),
the other end of the overflow valve (19) is connected with the three-position four-way valve (20), the overflow valve (19) can adjust the oil pressure of pressure oil,
the left side of the three-position four-way valve (20) is connected with the first oil inlet (1a), the right side of the three-position four-way valve (20) is connected with the second oil inlet (1b),
when the left side of the three-position four-way valve (20) is electrified, pressure oil enters a cavity A through a first oil inlet (1a), and after the driving end central body (5) is driven by the piston body (3) to be jointed with the friction transmission mechanism (6), the three-position four-way valve (20) reaches a middle position;
when the right side of the three-position four-way valve (20) is electrified, pressure oil enters a cavity B through a second oil inlet (1B), the piston body (3) drives the driving end central body (5) to be separated from the friction transmission mechanism (6), and then the three-position four-way valve (20) reaches a middle position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021943557.6U CN212536471U (en) | 2020-09-08 | 2020-09-08 | Hydraulic clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021943557.6U CN212536471U (en) | 2020-09-08 | 2020-09-08 | Hydraulic clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212536471U true CN212536471U (en) | 2021-02-12 |
Family
ID=74526881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021943557.6U Active CN212536471U (en) | 2020-09-08 | 2020-09-08 | Hydraulic clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212536471U (en) |
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2020
- 2020-09-08 CN CN202021943557.6U patent/CN212536471U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230802 Address after: 224100 south of Weisan Road, Dafeng Development Zone, Yancheng City, Jiangsu Province Patentee after: Jiangsu Gudeng Heavy Machinery Technology Co.,Ltd. Address before: 224100 north side of Jianshe West Road, Dafeng Industrial Park, Changzhou hi tech Zone, Dafeng District, Yancheng City, Jiangsu Province Patentee before: JIANGSU GOODENG ENGINEERING MACHINERY ASSEMBLING Co.,Ltd. |
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| TR01 | Transfer of patent right |