CN216519448U - Hydraulic tensioner and automobile - Google Patents
Hydraulic tensioner and automobile Download PDFInfo
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- CN216519448U CN216519448U CN202122267819.2U CN202122267819U CN216519448U CN 216519448 U CN216519448 U CN 216519448U CN 202122267819 U CN202122267819 U CN 202122267819U CN 216519448 U CN216519448 U CN 216519448U
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Abstract
The utility model belongs to the technical field of automobile exhaust parts, and particularly relates to a hydraulic tensioner and an automobile. The hydraulic tensioner comprises a mounting body, a first hydraulic component, a second hydraulic component, a first tensioning component and a second tensioning component; the first tensioning assembly comprises a first tensioning arm, the second tensioning assembly comprises a second tensioning arm, and the first tensioning arm and the second tensioning arm are respectively and rotatably connected to two opposite sides of the mounting body; a first fixed end of the first hydraulic component is arranged on the mounting body, and a first output end of the first hydraulic component is connected with the first tensioning arm; the second fixed end of the second hydraulic component is installed on the installation body, and the second output end of the second hydraulic component is connected with the first tensioning arm. The hydraulic tensioner can avoid the accident that the first tensioning arm or the second tensioning arm is impacted due to overlarge rotation amplitude in different modes, and also avoid abnormal noise caused by impact; and the hydraulic tensioner has high working stability and less vibration.
Description
Technical Field
The utility model belongs to the technical field of automobile exhaust parts, and particularly relates to a hydraulic tensioner and an automobile.
Background
With the stricter and stricter regulations on the emission oil consumption of the automobile, the requirement on the emission oil consumption of the automobile is higher and higher, and the oil consumption of the engine can be reduced to a certain extent by starting and stopping the engine through the 48V motor. In a drive system of a 48V motor start-stop engine, a bidirectional tensioner is required to press a multi-wedge belt, so that the multi-wedge belt has enough tension wheel to ensure the normal operation of the drive system. The 48V motor is started and stopped in four working modes: starting modes (motor start and key start), power-assisted mode, energy recovery mode and normal power generation mode. The working states of the two-way tensioner in different modes are different, and the elastic edge of the two-way tensioner is continuously switched along with the change of the working modes so as to meet the working requirement.
In the prior art, a two-way tensioner in an automobile driving system usually adopts a mechanical structure, and the mechanical two-way tensioner receives a great impact force from an engine in a starting mode process, so that a rotation angle of a tensioning arm of the two-way tensioner is relatively large, and thus a limiting part of the tensioning arm is impacted (the limiting part is used for preventing the tensioning arm from rotating too much and separating from a belt to cause the belt to fall off), so that abnormal sound of parts is caused, the comfort of a vehicle is influenced, and meanwhile, under a state of frequent starting, the service life of the parts is easily shortened due to frequent impact.
SUMMERY OF THE UTILITY MODEL
The utility model provides a hydraulic tensioner and an automobile, aiming at the technical problem of impact abnormal sound caused by large rotation angle of a tensioning arm of a mechanical two-way tensioner in a starting mode in the prior art.
In view of the above technical problem, an embodiment of the present invention provides a hydraulic tensioner, including a mounting body, a first hydraulic assembly, a second hydraulic assembly, a first tensioning assembly, and a second tensioning assembly; the first tensioning assembly comprises a first tensioning arm, the second tensioning assembly comprises a second tensioning arm, and the first tensioning arm and the second tensioning arm are respectively connected to two opposite sides of the mounting body in a rotating mode;
a first fixed end of the first hydraulic assembly is mounted on the mounting body, and a first output end of the first hydraulic assembly is connected with the first tensioning arm; the second fixed end of the second hydraulic component is installed on the installation body, and the second output end of the second hydraulic component is connected with the first tensioning arm.
Optionally, the hydraulic tensioner further comprises a connecting column, and a first elastic part and a second elastic part which are installed at two opposite ends of the connecting column, wherein one end of the first elastic part, which is far away from the connecting column, is connected with the first tensioning arm, and one end of the second elastic part, which is far away from the connecting column, is connected with the second tensioning arm.
Optionally, the first fixed end includes a first cylinder installed on the installation body and provided with a first hydraulic chamber; the first output end comprises a first connecting rod connected with the first tensioning arm and a first piston provided with a first connecting hole; one end of the first piston is connected to one end, far away from the first tensioning arm, of the first connecting rod, the other end of the first piston extends into the first hydraulic cavity, and the first piston divides the first hydraulic cavity into a first cavity and a second cavity;
the second fixed end comprises a second cylinder body which is arranged on the mounting body and is provided with a second hydraulic cavity; the second output end comprises a second connecting rod connected with the second tensioning arm and a second piston provided with a second communication hole; one end of the second piston is connected to one end, far away from the second tensioning arm, of the second connecting rod, the other end of the second piston extends into the second hydraulic cavity, and the second piston divides the second hydraulic cavity into a third cavity and a fourth cavity.
Optionally, the first hydraulic assembly further comprises a first seal mounted on the first cylinder for sealing the first cylinder;
the second hydraulic assembly also includes a second seal mounted on the second barrel for sealing the second barrel.
Optionally, the first hydraulic assembly further comprises a third seal sleeved on the first piston; the first piston is connected with the inner side wall of the first cylinder body in a sealing mode through the third sealing piece;
the second hydraulic component also comprises a fourth sealing element sleeved on the second piston; the second piston is connected with the inner side wall of the second cylinder in a sealing mode through the fourth sealing piece.
Optionally, the first tensioning assembly further comprises a first rotating shaft and a first tensioning wheel rotatably mounted on the first tensioning arm, the first tensioning arm is provided with a first mounting hole, the mounting body is provided with a second mounting hole, and the first tensioning arm is rotatably mounted on the mounting body through the first rotating shaft inserted into the first mounting hole and the second mounting hole;
the second tensioning assembly further comprises a second rotating shaft and a second tensioning wheel rotatably mounted on the second tensioning arm, a third mounting hole is formed in the second tensioning arm, a fourth mounting hole is formed in the mounting body, and the second tensioning arm is rotatably mounted on the mounting body through the second rotating shaft inserted into the third mounting hole and the fourth mounting hole.
Optionally, the first tensioning assembly further comprises a first friction ring sleeved on the first rotating shaft, and the first rotating shaft is mounted in the first mounting hole through the first friction ring;
the second tensioning assembly further comprises a second friction ring sleeved on the second rotating shaft, and the second rotating shaft is installed in the third installation hole through the second friction ring.
Optionally, the first tensioning assembly further comprises a first dust cover for sealing the first mounting hole, the first dust cover being sealingly mounted in the first mounting hole;
the second tensioning assembly further comprises a second dust cover for sealing the third mounting hole, and the second dust cover is mounted in the third mounting hole in a sealing mode.
Optionally, the first fixed end, the second fixed end and the installation body are of an integrally formed structure.
An embodiment of the utility model also provides an automobile comprising the hydraulic tensioner.
In the utility model, when the automobile driving system is in a starting mode or a boosting mode, the first tensioning arm can be subjected to large impact force of an engine, and at the moment, the rotation angle of the first tensioning arm towards the direction far away from the second tensioning arm is restrained by the first hydraulic assembly, so that the rotation amplitude of the first tensioning arm is reduced. When the automobile driving system is in an energy recovery mode, the second tensioning arm can be subjected to a large impact force of the engine, and the rotation angle of the second tensioning arm towards the direction far away from the first tensioning arm can be restrained by the second hydraulic component, so that the rotation amplitude of the second tensioning arm is reduced. Similarly, when the vehicle drive system is in the generating mode, the first hydraulic assembly will inhibit the rotation angle of the first tensioning arm, or the second hydraulic assembly will inhibit the rotation amplitude of the second tensioning arm. The hydraulic tensioner can avoid the accident that the first tensioning arm or the second tensioning arm is impacted due to overlarge rotation amplitude in different modes, and also avoids abnormal noise caused by impact; and the hydraulic tensioner has high working stability and less vibration. In addition, the hydraulic tensioner uses hydraulic damping, improves the stability of an automobile driving system, reduces the vibration of an automobile engine, reduces the energy consumption of the automobile engine, improves the oil consumption and the emission of an automobile, and prolongs the service life of the hydraulic tensioner.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of a hydraulic tensioner provided by an embodiment of the present invention;
FIG. 2 is a schematic structural view from another perspective of a hydraulic tensioner according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a first tensioning assembly of the hydraulic tensioner provided by one embodiment of the present invention;
FIG. 4 is a schematic structural view of a mounting body of a hydraulic tensioner according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a first hydraulic assembly of the hydraulic tensioner provided by one embodiment of the present invention;
fig. 6 is a partial schematic structural view of a hydraulic tensioner according to an embodiment of the present invention.
The reference numerals in the specification are as follows:
1. an installation body; 11. a second mounting hole; 12. a fourth mounting hole; 2. a first hydraulic assembly; 21. a first fixed end; 211. a first cylinder; 210. a first hydraulic chamber; 2111. a first chamber; 2112. a second chamber; 22. a first output terminal; 221. a first connecting rod; 222. a first piston; 23. a first seal member; 24. a third seal member; 3. a second hydraulic assembly; 31. a second fixed end; 32. a second output terminal; 4. a first tensioning assembly; 41. a first tensioning arm; 42. a first rotating shaft; 43. a first friction ring; 44. a first dust cover; 45. a first tensioning wheel; 5. a second tensioning assembly; 51. a second tensioning arm; 52. a second tensioning wheel; 6. connecting columns; 7. a first elastic member; 8. a second elastic member.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
It is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "middle", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience in describing and simplifying the present invention, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
As shown in fig. 1 and 2, a hydraulic tensioner according to an embodiment of the present invention includes a mounting body 1, a first hydraulic assembly 2, a second hydraulic assembly 3, a first tensioning assembly 4, and a second tensioning assembly 5; the first tensioning assembly 4 comprises a first tensioning arm 41, the second tensioning assembly 5 comprises a second tensioning arm 51, and the first tensioning arm 41 and the second tensioning arm 51 are respectively connected to two opposite sides of the mounting body 1 in a rotating manner; it can be understood that the mounting body 1 is a bent structural member; preferably, the first tensioning arm 41 and the second tensioning arm 51 are symmetrically arranged; further, the first tensioning assembly 4 and the second tensioning assembly 5 are symmetrically arranged.
The first fixed end 21 of the first hydraulic component 2 is mounted on the mounting body 1, and the first output end 22 of the first hydraulic component 2 is connected with the first tensioning arm 41; the second fixed end 31 of the second hydraulic component 3 is installed on the installation body 1, and the second output end 32 of the second hydraulic component 3 is connected with the first tensioning arm 41. Preferably, the first fixing end 21, the second fixing end 31 and the mounting body 1 are integrally formed.
Specifically, the first tensioning assembly 4 further comprises a first tensioning wheel 45 rotatably mounted on the first tensioning arm 41, the second tensioning assembly 5 further comprises a second tensioning wheel 52 rotatably mounted on the second tensioning arm 51, and the first tensioning wheel 45 and the second tensioning wheel 52 are connected with a multi-wedge belt of a vehicle driving system, so that the first tensioning wheel 45 and the second tensioning wheel 52 can play a role in adjusting the tensioning force of the multi-wedge belt.
The working principle of the hydraulic tensioner is as follows: when the automobile driving system is in a starting mode or a power assisting mode, the first tensioning wheel 45 is at the tight edge of the multi-wedge belt, when the automobile engine is started, the first tensioning wheel 45 and the first tensioning arm 41 rotate towards the direction away from the second tensioning arm 51 under the action of the multi-wedge belt, the first tensioning arm 41 compresses the hydraulic oil in the first fixed end 21 through the first output end 22, and the hydraulic oil in the first fixed end 21 inhibits the rotation of the first tensioning arm 41, so that the rotation amplitude of the first tensioning arm 41 is reduced.
When the automobile driving system is in the energy recovery mode, the second tensioning arm 51 is located at the tight edge of the multi-wedge belt, the second tensioning arm 52 rotates in a direction away from the first tensioning arm 41 under the action of the multi-wedge belt, the second tensioning arm 51 compresses the hydraulic oil in the second fixed end 31 through the second output end 32, and the hydraulic oil in the second fixed end 31 inhibits the rotation of the second tensioning arm 51, so that the rotation amplitude of the second tensioning arm 51 is reduced.
When the automobile driving system is in the power generation mode, the first tensioning arm 41 is at the tight side of the multi-wedge belt, the second tensioning arm 51 is at the loose side of the multi-wedge belt, the first tensioning arm 41 will rotate in a direction away from the second tensioning arm 51, or the second tensioning arm 51 will rotate in a direction away from the first tensioning arm 41 (the tensioning arms and the second tensioning arm 51 will not rotate reversely at the same time), when the first tensioning arm 41 rotates upwards, the first output end 22 will compress the hydraulic oil in the first fixed end 21, and the hydraulic oil in the first fixed end 21 will inhibit the rotation of the first tensioning arm 41, so that the rotation amplitude of the first tensioning arm 41 is reduced; when the second tensioning arm 51 rotates upwards, the second output end 32 compresses the hydraulic oil in the second fixed end 31, and the hydraulic oil in the second fixed end 31 inhibits the rotation of the second tensioning arm 51, so that the rotation amplitude of the second tensioning arm 51 is reduced.
In the present invention, when the vehicle driving system is in the starting mode or the boosting mode, the first tensioning arm 41 will be subjected to a large impact force from the engine, and at this time, the rotation angle of the first tensioning arm 41 in the direction away from the second tensioning arm 51 will be restrained by the first hydraulic assembly 2, so that the rotation amplitude of the first tensioning arm 41 is reduced. When the vehicle drive system is in the energy recovery mode, the second tensioning arm 51 will be subjected to a large impact force from the engine, and at this time, the rotation angle of the second tensioning arm 51 in the direction away from the first tensioning arm 41 will be restrained by the second hydraulic component 3, so that the rotation amplitude of the second tensioning arm 51 is reduced. Similarly, when the vehicle drive system is in the generating mode, the first hydraulic assembly 2 will inhibit the rotation angle of the first tensioning arm 41, or the second hydraulic assembly 3 will inhibit the rotation amplitude of the second tensioning arm 51. The hydraulic tensioner can avoid the collision accident of the first tensioning arm 41 or the second tensioning arm 51 caused by overlarge rotation amplitude in different modes, and also avoid the abnormal sound noise caused by the collision; and the hydraulic tensioner has high working stability and less vibration. In addition, the hydraulic tensioner uses hydraulic damping, improves the stability of an automobile driving system, reduces the vibration of an automobile engine, reduces the energy consumption of the automobile engine, improves the oil consumption and the emission of an automobile, and prolongs the service life of the hydraulic tensioner.
In one embodiment, as shown in fig. 1 and 6, the hydraulic tensioner further includes a connecting column 7 and a first elastic member 7 and a second elastic member 8 mounted at opposite ends of the connecting column 7, wherein one end of the first elastic member 7 away from the connecting column 7 of the connecting column 7 is connected to the first tensioning arm 41, and one end of the second elastic member 8 away from the connecting column 7 of the connecting column 7 is connected to the second tensioning arm 51. It is understood that the first elastic member 7 and the second elastic member 8 can be sleeved on the connecting column 7 of the connecting column 7, and the first elastic member 7 and the second elastic member 8 each include, but are not limited to, a spring, etc.
Specifically, when the first tensioning wheel 45 is at the tight edge, the first tensioning arm 41 will compress the first elastic member 7, so that the rotation amplitude of the first tensioning arm 41 is suppressed under the dual action of the first hydraulic assembly 2 and the first elastic member 7, and the first tensioning arm 41 drives the second elastic member 8 to compress through the first elastic member 7, the second elastic member 8 will drive the second tensioning arm 51 to move down, and the tensioning force of the multi-wedge belt is kept balanced under the action of the first tensioning wheel 45 and the second tensioning wheel 52. When the second tensioning wheel 52 is in the tight-edge state, the situation is the same as that of the first tensioning wheel 45, and the description thereof is omitted here. In this embodiment, the design of the first elastic element 7, the second elastic element 8 and the connecting column 7 further limits the rotation range of the first tensioning arm 41 or the second tensioning arm 51.
In one embodiment, as shown in fig. 1, the first fixing end 21 includes a first cylinder 211 mounted on the mounting body 1 and provided with a first hydraulic chamber 210; the first output 22 comprises a first connecting rod 221 connected to the first tensioning arm 41 and a first piston 222 provided with a first connecting hole (not shown); one end of the first piston 222 is connected to the end of the first connecting rod 221 away from the first tensioning arm 41, the other end of the first piston 222 extends into the first hydraulic chamber 210, and the first piston 222 divides the first hydraulic chamber 210 into a first chamber 2111 and a second chamber 2112; it is understood that the first piston 222 is provided with an annular groove, the first annular groove and the inner wall of the first cylinder 211 form the two chambers, and the end of the first piston 222 away from the first connecting rod 221 and the inner wall of the first cylinder 211 form the first chamber 2111. Further, a first pressure valve is arranged in the first communication hole, and when the pressure of the hydraulic oil in the first chamber 2111 reaches a first preset pressure, the first pressure valve is opened, so that the hydraulic oil in the first chamber 2111 enters the second chamber 2112 through the first communication hole; and when the pressure of the hydraulic oil in the second chamber 2112 is greater than the pressure of the hydraulic oil in the first chamber 2111, the hydraulic oil in the second chamber 2112 can enter the first chamber 2111 through the first communication hole.
Specifically, when the first tensioning arm 41 drives the first piston 222 to compress the hydraulic oil in the first chamber 2111 through the first connecting rod 221, the hydraulic oil in the second chamber 2112 will inhibit the rotation amplitude of the first tensioning arm 41; with the increasing compression force of the first piston 222 on the hydraulic oil in the first chamber 2111, the hydraulic oil in the first chamber 2111 enters the second chamber 2112 through the first communication hole, so that the pressure of the hydraulic oil in the second chamber 2112 rises, and the pressure of the hydraulic oil in the first chamber 2111 falls. When the tight edge state of the first tensioning wheel 45 is released, the hydraulic oil in the second chamber 2112 rapidly flows back to the first chamber 2111 through the first communication hole, so that the response speed of the first tensioning arm 41 is realized, and the comfort level of the automobile is improved.
The second fixed end 31 comprises a second cylinder which is arranged on the installation body 1 and is provided with a second hydraulic cavity; the second output end 32 comprises a second connecting rod connected with the second tensioning arm 51 and a second piston provided with a second communication hole; one end of the second piston is connected to one end, far away from the second tensioning arm 51, of the second connecting rod, the other end of the second piston extends into the second hydraulic cavity, and the second piston divides the second hydraulic cavity into a third cavity and a fourth cavity. It is understood that the structure and the action of the second hydraulic assembly 3 and the first hydraulic assembly 2 are far from the same and will not be described in detail here.
In one embodiment, as shown in fig. 5, the first hydraulic assembly 2 further includes a first sealing member 23 mounted on the first cylinder 211 for sealing the first cylinder 211; it is understood that the first sealing members 23 each include, but are not limited to, sealing rubber or the like. Specifically, the first sealing element 23 is located at an opening position of the first cylinder 211, and the first sealing element 23 can prevent external contaminants from entering the first cylinder 211, so that the first piston 222 can smoothly slide in the first cylinder 211, the stability of the first hydraulic assembly 2 is improved, and the service life of the first hydraulic assembly is prolonged.
The second hydraulic assembly 3 further comprises a second seal mounted on the second cylinder for sealing the second cylinder. It will be appreciated that the second seal is identical in construction and remote from the first seal 23 and will not be described in detail herein.
In an embodiment, as shown in fig. 5, the first hydraulic assembly 2 further includes a third seal 24 sleeved on the first piston 222, and the first piston 222 is connected to the inner sidewall of the first cylinder 211 in a sealing manner through the third seal 24. It will be appreciated that the third seal 24 is mounted on the first piston 222, and the third seal 24 is in interference fit with the inner wall of the first cylinder 211, so as to prevent the first chamber 2111 and the second chamber 2112 from communicating through the gap between the first piston 222 and the inner side wall of the first cylinder 211, further improving the stability of the first hydraulic assembly 2.
The second hydraulic component 3 further comprises a fourth sealing element sleeved on the second piston, and the second piston is connected with the inner side wall of the second cylinder body in a sealing mode through the fourth sealing element. It will be appreciated that the construction and principle of the fourth seal is the same as that of the third seal 24 and will not be described in detail here.
In an embodiment, as shown in fig. 1, 3 and 4, the first tensioning assembly 4 further includes a first rotating shaft 42 and a first tensioning wheel 45 rotatably mounted on the first tensioning arm 41, the first tensioning arm 41 is provided with a first mounting hole, the mounting body 1 is provided with a second mounting hole 11, and the first tensioning arm 41 is rotatably mounted on the mounting body 1 through the first rotating shaft 42 inserted into the first mounting hole and the second mounting hole 11; it will be appreciated that the first tensioning arm 41 is rotatably connected to the mounting body 1 via the first pivot 42. In this embodiment, the first tensioning arm 41 has a simple structure and is convenient to mount.
The second tensioning assembly 5 further includes a second rotating shaft and a second tensioning wheel 52 rotatably mounted on the second tensioning arm 51, a third mounting hole is formed in the second tensioning arm 51, a fourth mounting hole 12 is formed in the mounting body 1, and the second tensioning arm 51 is rotatably mounted on the mounting body 1 through the second rotating shaft inserted into the third mounting hole and the fourth mounting hole 12. It will be appreciated that the second tensioning arm 51 is pivotally connected to the mounting body 1 via the second pivot axis. In this embodiment, the second tensioning arm 51 has a simple structure and is convenient to mount.
In an embodiment, as shown in fig. 3, the first tensioning assembly 4 further includes a first friction ring 43 sleeved on the first rotating shaft 42, and the first rotating shaft 42 is installed in the first installation hole through the first friction ring 43; it can be understood that the first friction ring 43 can have a technical effect of preventing the first rotation shaft from rotating, that is, the first friction ring 43 can have a technical effect of inhibiting the first rotation arm from rotating, and the first friction ring 43 can ensure the stability of the rotation of the first rotation shaft 42.
The second tensioning assembly 5 further comprises a second friction ring sleeved on the second rotating shaft, and the second rotating shaft is installed in the third installation hole through the second friction ring. It can be understood that the second friction ring can have a technical effect of preventing the second rotating shaft from rotating, that is, the second friction ring can have a technical effect of inhibiting the second rotating arm from rotating, and the second friction ring can ensure the stability of the rotation of the second rotating shaft.
In one embodiment, as shown in fig. 3, the first tensioning assembly 4 further comprises a first dust cover 44 for sealing the first mounting hole, the first dust cover 44 being sealingly mounted in the first mounting hole; it will be appreciated that the first dust cover 44 prevents external contaminants from entering the first mounting hole, thereby extending the useful life of the hydraulic tensioner.
The second tensioning assembly 5 further comprises a second dust cap for sealing the third mounting hole, and the second dust cap is mounted in the third mounting hole in a sealing manner. It is understood that the second dust cap can prevent external contaminants from entering the third mounting hole, thereby extending the service life of the hydraulic tensioner.
In summary, the working principle of the hydraulic tensioner is as follows: when the automobile driving system is in a starting mode or a boosting mode, the first tensioning wheel 45 is at a tight edge of the multi-wedge belt, when the automobile engine is started, the first tensioning wheel 45 and the first tensioning arm 41 will move in a direction away from the second tensioning arm 51 under the action of the multi-wedge belt, the first tensioning arm 41 will compress the first elastic member 7, and the first elastic member 7 drives the second tensioning arm 51 to move downwards through the connecting column 6 and the second elastic member 8, so that the tensioning force of the multi-wedge belt is maintained in a balanced state under the action of the first tensioning wheel 45 and the second tensioning wheel 52; meanwhile, the first tensioning arm 41 compresses the hydraulic oil in the first chamber 2111 through the first output end 22, and the hydraulic oil in the first chamber 2112 inhibits the rotation of the first tensioning arm 41, so that the rotation amplitude of the first tensioning arm 41 is reduced, and as the hydraulic oil pressure in the first chamber 2111 continuously rises, the hydraulic oil in the first chamber 2111 enters the second chamber 2112 through the first communication hole, so that the pressure of the hydraulic oil in the second chamber 2112 rises. When the tightening state of the first tightening wheel 45 is released, the hydraulic oil in the second chamber 2112 enters the first chamber 2111 through the first communication hole, so that the first tightening arm 41 and the first tightening wheel 45 are driven to reset, and the function of quick response of the first tightening assembly 4 is further realized.
When the vehicle driving system is in the energy recovery mode or the power generation mode, the distance between the vehicle driving system and the vehicle driving system in the starting mode or the power assisting mode is the same, and the detailed description is omitted here.
Another embodiment of the utility model is also directed to an automobile comprising the hydraulic tensioner described above.
The above description is only exemplary of the hydraulic tensioner of the present invention and is not intended to limit the present invention, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A hydraulic tensioner comprising a mounting body, a first hydraulic assembly, a second hydraulic assembly, a first tensioning assembly, and a second tensioning assembly; the first tensioning assembly comprises a first tensioning arm, the second tensioning assembly comprises a second tensioning arm, and the first tensioning arm and the second tensioning arm are respectively connected to two opposite sides of the mounting body in a rotating mode;
a first fixed end of the first hydraulic assembly is mounted on the mounting body, and a first output end of the first hydraulic assembly is connected with the first tensioning arm; the second fixed end of the second hydraulic component is installed on the installation body, and the second output end of the second hydraulic component is connected with the first tensioning arm.
2. The hydraulic tensioner as claimed in claim 1, further comprising a connecting post and first and second resilient members mounted at opposite ends of the connecting post, an end of the first resilient member distal from the connecting post being connected to the first tensioning arm, and an end of the second resilient member distal from the connecting post being connected to the second tensioning arm.
3. The hydraulic tensioner as in claim 1, wherein the first fixed end comprises a first cylinder mounted on the mounting body and provided with a first hydraulic chamber; the first output end comprises a first connecting rod connected with the first tensioning arm and a first piston provided with a first connecting hole; one end of the first piston is connected to one end, far away from the first tensioning arm, of the first connecting rod, the other end of the first piston extends into the first hydraulic cavity, and the first piston divides the first hydraulic cavity into a first cavity and a second cavity;
the second fixed end comprises a second cylinder body which is arranged on the mounting body and is provided with a second hydraulic cavity; the second output end comprises a second connecting rod connected with the second tensioning arm and a second piston provided with a second communication hole; one end of the second piston is connected to one end, far away from the second tensioning arm, of the second connecting rod, the other end of the second piston extends into the second hydraulic cavity, and the second piston divides the second hydraulic cavity into a third cavity and a fourth cavity.
4. The hydraulic tensioner as in claim 3, wherein the first hydraulic assembly further comprises a first seal mounted on the first cylinder for sealing the first cylinder;
the second hydraulic assembly also includes a second seal mounted on the second barrel for sealing the second barrel.
5. The hydraulic tensioner as in claim 3, wherein the first hydraulic assembly further comprises a third seal sleeved on the first piston; the first piston is connected with the inner side wall of the first cylinder body in a sealing mode through the third sealing piece;
the second hydraulic component also comprises a fourth sealing element sleeved on the second piston; the second piston is connected with the inner side wall of the second cylinder in a sealing mode through the fourth sealing piece.
6. The hydraulic tensioner as claimed in claim 1, wherein the first tensioning assembly further comprises a first rotating shaft and a first tensioning wheel rotatably mounted on the first tensioning arm, the first tensioning arm being provided with a first mounting hole, the mounting body being provided with a second mounting hole, the first tensioning arm being rotatably mounted on the mounting body by the first rotating shaft being inserted into the first mounting hole and the second mounting hole;
the second tensioning assembly further comprises a second rotating shaft and a second tensioning wheel rotatably mounted on the second tensioning arm, a third mounting hole is formed in the second tensioning arm, a fourth mounting hole is formed in the mounting body, and the second tensioning arm is rotatably mounted on the mounting body through the second rotating shaft inserted into the third mounting hole and the fourth mounting hole.
7. The hydraulic tensioner of claim 6, wherein the first tensioning assembly further comprises a first friction ring sleeved on the first rotating shaft, the first rotating shaft being mounted in the first mounting hole by the first friction ring;
the second tensioning assembly further comprises a second friction ring sleeved on the second rotating shaft, and the second rotating shaft is installed in the third installation hole through the second friction ring.
8. The hydraulic tensioner as in claim 6, wherein the first tensioning assembly further comprises a first dust cover mounted over an end of the first mounting hole remote from the mounting body and sealing the first mounting hole;
the second tensioning assembly further comprises a second dustproof cover which is covered and installed at one end, far away from the installation body, of the second installation hole and used for sealing the second installation hole.
9. The hydraulic tensioner as in claim 1, wherein the first fixed end, the second fixed end, and the mounting body are of an integrally formed structure.
10. An automobile comprising the hydraulic tensioner of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122267819.2U CN216519448U (en) | 2021-09-17 | 2021-09-17 | Hydraulic tensioner and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122267819.2U CN216519448U (en) | 2021-09-17 | 2021-09-17 | Hydraulic tensioner and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216519448U true CN216519448U (en) | 2022-05-13 |
Family
ID=81520651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122267819.2U Active CN216519448U (en) | 2021-09-17 | 2021-09-17 | Hydraulic tensioner and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216519448U (en) |
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2021
- 2021-09-17 CN CN202122267819.2U patent/CN216519448U/en active Active
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