CN212479960U - Electric clutch separating system for commercial vehicle - Google Patents
Electric clutch separating system for commercial vehicle Download PDFInfo
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- CN212479960U CN212479960U CN202021439936.1U CN202021439936U CN212479960U CN 212479960 U CN212479960 U CN 212479960U CN 202021439936 U CN202021439936 U CN 202021439936U CN 212479960 U CN212479960 U CN 212479960U
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Abstract
The utility model discloses an electronic separation system of clutch for commercial vehicle, including driving motor, gear one, gear two, planet roller lead screw, push rod, ejector pin, piston, compression spring, sensor. The driving motor is connected with a planetary roller screw through a first gear and a second gear, the planetary roller screw is connected with a push rod, the other end of the push rod is provided with a deep hole, a compression spring and a piston are arranged in the deep hole, and one end of the piston is provided with a mandril; install the sensor on the tail end of planet roller lead screw or the nut, this utility model has no gas leakage, does not need the characteristics of normal work power supply, can save vehicle power loss, is particularly suitable for pure electronic and oil-electricity hybrid's new energy automobile to use.
Description
Technical Field
The utility model relates to a heavily block power transmission field especially relates to a clutch electric separation system for commercial vehicle.
Background
At present, with the rapid development of vehicle steering automation, automatic transmissions for automobiles are showing a vigorous trend. Particularly, with the great annual increase of the automobile holding capacity in China, the number of non-professional drivers is increased sharply, and automobiles which are simple and convenient to operate and excellent in performance are urgently needed. Vehicles equipped with automatic transmissions are becoming more and more popular because of their advantages of easy operation, smooth starting, and good riding comfort. An automatic Transmission (AMT) is based on a traditional fixed shaft type Transmission and a friction type clutch, applies an automatic speed change theory, takes an electronic control unit as a core, controls the clutch and a gear shifting mechanism through corresponding strategies and devices, and realizes the automation of vehicle starting and gear shifting. The design scheme has good production inheritance, convenient use, simplicity and safety, and is thus valued by various large automobile factories.
Wherein the control device of the clutch directly influences the performance and popularization of the AMT. The control device of the present heavy friction clutch mainly comprises: manual and automatic control, manual control need the driver frequently to ignore down the clutch pedal when shifting gears, shifts frequently when, causes driver's fatigue easily, if the operation is unskilled or the operation is unreasonable, still causes the damage of clutch friction disc easily.
Heavy-duty trucks mostly adopt friction clutches, and as the force required for separating the clutches is large and the trucks are generally provided with air sources, the work is completed by a pneumatic clutch slave cylinder. However, the pneumatic clutch slave cylinder adopted at present has the problem that dust is easily absorbed in a cylinder body, so that a piston sealing ring is abraded. The reason for this phenomenon lies in that the air chamber that the slave cylinder is continuous with the piston rod can produce the negative pressure at the in-process that resumes the normal position, and external dust can be inhaled the air chamber to adsorbed on the cylinder body inner wall, though install the dust cover on the clutch slave cylinder, still be difficult to stop the entering of dust, must change the clutch slave cylinder in serious time and just can solve this problem, and pneumatic system also has phenomenons such as gas leakage simultaneously.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem, the utility model discloses a clutch electric separation system for commercial vehicle has been developed, the utility model aims at solving the not enough that clutch wheel cylinder exists among the present heavy duty truck, mainly used cooperation automatic gearbox accomplishes the problem of the action of shifting.
The utility model provides a technical scheme does:
an electric clutch disengagement system for a commercial vehicle, comprising:
a housing on which a guide bar is fixedly mounted;
a drive motor;
the first transmission gear is fixedly connected with the power output end of the driving motor;
a second transmission gear meshed with the first transmission gear;
the screw rod is fixedly connected with the second transmission gear;
the screw nut is matched with the screw and can move along the axial direction of the screw, and the screw nut is installed on the guide rod and can slide along the axial direction of the guide rod;
the sensor is arranged at one end of the lead screw connected with the second transmission gear or on the shell;
one end of the push rod is fixedly connected with the screw nut, and the other end of the push rod is provided with an accommodating cavity;
the compression spring is arranged in the accommodating cavity, and one end of the compression spring is abutted against the inner wall of the accommodating cavity;
the piston is arranged in the accommodating cavity, and one end of the piston is abutted against the other end of the compression spring;
one end of the ejector rod is fixedly connected with the other end of the piston;
one end of the separation lever is fixedly connected with the other end of the ejector rod;
and the release bearing is fixedly connected with the other end of the release lever and is used for enabling the clutch to be selectively combined or separated.
Preferably, the method further comprises the following steps:
the two elastic check rings are symmetrically arranged and fixedly arranged at two ends of the inner side of the screw nut;
the two symmetrically arranged retainers are arranged between the two symmetrically arranged elastic check rings, and a plurality of through holes are symmetrically arranged on the retainers;
the two ends of the plurality of rollers are respectively and correspondingly inserted into the through holes and are uniformly distributed and arranged along the circumferential direction of the screw rod, and the two ends of each roller are provided with outer gears;
and the two symmetrically arranged gear rings are correspondingly arranged on the inner sides of the two symmetrically arranged retainers respectively and are meshed with the external gear.
Preferably, the method further comprises the following steps:
a position detection rod fixedly mounted on the lead screw nut;
wherein the position detection rod is fittingly insertable into the sensor to detect a moving position of the lead screw nut when the sensor is mounted on the housing.
Preferably, the screw nut is fixedly connected with the push rod through a screw.
Preferably, when the sensor is arranged at one end of the lead screw connected with the second transmission gear, the sensor is an absolute value encoder or an incremental encoder.
Preferably, when the sensor is mounted on the housing, the sensor is an inductive sensor or a hall sensor.
Preferably, the lead screw and/or the lead screw nut adopt triangular threads with a thread form angle of 90 degrees; and/or
The roller adopts convex arc external threads.
Preferably, the clutch electric separation system adopts a grease lubrication mode.
Preferably, the grease contains magnesium hydroxy silicate particles, and the particle size of the magnesium hydroxy silicate particles is less than 10 um.
Preferably, the lubricating grease comprises copper nanopowder, nano graphite, nano calcium carbonate and nano PTFE.
Compared with the prior art, the utility model beneficial effect who has:
1. the system can realize the operation of the separation and combination actions of the clutch on the basis of not changing the structure of the existing clutch of the truck greatly, thereby reducing the labor intensity of a driver;
2. because the structure of the motor and the planetary roller screw is adopted, the controllability of the clutch is better than that of a common hydraulic system, the power interruption time can be reduced, the abrasion degree of a clutch friction disc is reduced, and the service life of the clutch friction disc is prolonged;
3. because a hydraulic system is cancelled, the power loss caused by air leakage and liquid leakage can be reduced, and meanwhile, the power source does not need to work all the time in the driving process, so the loss of invalid power can also be reduced;
4. the hydraulic system of the traditional automobile is mostly connected with an engine, and the system is driven by a motor without power from the engine, so that the hydraulic system is particularly suitable for being used by a new energy automobile mixed with a pure electric vehicle and oil electricity;
5. compared with the existing electric steering mechanism using the worm gear and the worm, the electric steering mechanism has higher working efficiency, thereby reducing the energy consumption of the whole vehicle and reducing the heat generation of a steering system.
Drawings
Fig. 1 is a schematic diagram of the mechanism movement of embodiment 1 of the present invention.
Fig. 2 is a schematic diagram of the mechanism movement of embodiment 2 of the present invention.
Fig. 3 is a profile view of a planetary roller screw.
Fig. 4 is a cross-sectional view of a planetary roller screw.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
Example 1
As shown in fig. 1, the utility model provides an electric clutch disengaging system for commercial vehicle, the main structure of which includes a driving motor 100, a mechanism housing 110, a first gear 121, a second gear 122, a planetary roller screw 130, a push rod 140, a piston 142, a compression spring 141, a push rod 143, and a first sensor 210; the driving motor 100 is connected with the planetary roller screw 130 through a first gear 121 and a second gear 122, the first gear 121 is fixedly connected with the power output end of the driving motor 100 and is in meshed transmission with the second gear 122, the planetary roller screw 130 is connected with one end of the push rod 140, the other end of the push rod 140 is provided with a deep hole, a compression spring 141 and a piston 142 are installed inside the deep hole, one end of the piston 142 is provided with a push rod 143, and the tail end of the planetary roller screw 130 is provided with a first sensor 210; in this embodiment, it is preferable that one end of the compression spring 141 is pressed against the bottom surface of the deep hole at one end of the push rod 140, and the other end is pressed against the piston 142, and the first sensor 210 is mounted on the second gear 122.
As shown in fig. 3 and 4, the main structure of the planetary roller screw 130 includes a screw 131, rollers 132, a nut 136, a first ring gear 134a, a second ring gear 134b, a first retainer 133a, a second retainer 133b, a first circlip 135a, and a circlip 135 b; wherein, the screw 131 is fixedly connected with the second gear 122, a plurality of rollers 132 are arranged between the screw 131 and the nut 136, the screw 131 and the nut 136 are connected through the rollers 132, both ends of the inner side of the nut 136 are respectively provided with a first elastic retainer ring 135a and a second elastic retainer ring 135b, the inner side of the nut 136 is provided with a first retainer ring 133a and a second retainer ring 133b, holes are designed on the first retainer ring 133a and the second retainer ring 133b, both ends of the rollers 132 are inserted into the holes of the first retainer ring 133a and the second retainer ring 133b, the inner sides of the first retainer ring 133a and the second retainer ring 133b are provided with a first gear ring 134a and a second gear ring 134b, each roller 132 is connected through the first gear ring 134a and the second gear ring 134b, both ends of the rollers 132 are provided with external gears which are engaged with internal teeth on the first gear ring 134a and the second gear, the nut 136 is slidable in the axial direction thereof; in the present embodiment, it is preferable that the nut 136 of the planetary roller screw 130 is connected to the push rod 140 by a screw 137; meanwhile, the lead screw 131 and the nut 136 are triangular threads with a profile angle of 90 degrees, and the roller 132 is provided with convex arc-shaped external threads.
In the present embodiment, the first sensor 210 is an absolute value encoder or an incremental encoder.
In this embodiment, the utility model provides a separation system mechanism adopts the lubricated mode of fat, and lubricating grease includes nanometer copper powder, nanometer graphite, nanometer calcium carbonate, nanometer PTFE.
The utility model provides a pair of commercial vehicle clutch electric separation system's working process includes:
the driving motor 100 rotates through the first gear 121 and the second gear 122, the planetary roller screw 130 converts the rotational motion transmitted by the second gear 122 into the linear motion of the nut 136, meanwhile, the nut 136 moves along the guide rod 111, the nut 136 transmits the linear motion to the push rod 140 and the piston 142 mounted thereon, further drives the piston 142 and the push rod 143 to push the release lever 151 to move, finally, the release lever 151 drives the release bearing 150 to complete the clutch action, and the moving position of the mechanism is detected through the first sensor 210 mounted on the second gear 122 in the moving process.
Example 2
As shown in fig. 2, the present invention provides an electric clutch disengagement system for a commercial vehicle, which comprises a main structure including a driving motor 100, a first gear 121, a second gear 122, a planetary roller screw 130, a push rod 140, a piston 142, a compression spring 141, a push rod 143, a second sensor 220 and a controller; the driving motor 100 is connected with the planetary roller screw through a first gear 121 and a second gear 122, the planetary roller screw 130 is connected with the push rod 140, the other end of the push rod 140 is provided with a deep hole, a compression spring 141 and a piston 142 are arranged in the deep hole, and one end of the piston 142 is provided with a push rod 143; a position detection rod 230 is installed on a nut 136 in the planetary roller screw, a second sensor 220 is installed on the mechanism shell 110, the position detection rod 230 can be inserted into the second sensor 220 in a matching mode, the position detection rod 230 is driven to be inserted into the second sensor 220 when the nut 136 moves, and the second sensor 220 detects the moving position of the nut 136 according to the inserting depth; in this embodiment, it is preferable that one end of the compression spring 141 is supported against the bottom surface of the deep hole at one end of the push rod 140, and the other end is supported against the piston 142.
As shown in fig. 3 and 4, the planetary roller screw includes a screw 131, rollers 132, a nut 136, a first ring gear 134a, a second ring gear 134b, a first retainer 133a, a second retainer 133b, a first circlip 135a and a circlip 135b, a plurality of rollers 132 are disposed between the screw 131 and the nut 136, the screw 131 and the nut 136 are connected through the rollers 132, a first circlip 135a and a circlip 135b are disposed at both ends of the inner side of the nut 136, a first retainer 133a and a second retainer 133b are disposed at the inner side, holes are designed on the inner side, both ends of the rollers 132 are inserted into the holes of the first retainer 133a and the second retainer 133b, a first ring gear 134a and a second ring gear 134b are disposed at the inner side of the first retainer 133a and the second retainer 133b, the rollers 132 are connected through the first ring gear 134a and the second ring gear 134b, both ends of, the external gear is meshed with internal teeth on the first gear ring 134a and the second gear ring 134b, a guide rod 111 is mounted on a nut 136 in the planetary roller screw, two ends of the guide rod 111 are fixed on the mechanism shell 110, and the nut 136 can slide along the axial direction of the guide rod; in the present embodiment, it is preferable that the nut 136 of the planetary roller screw 130 is connected to the push rod 140 by a screw 137; meanwhile, the lead screw 131 and the nut 136 adopt triangular threads with a profile angle of 90 degrees, and convex arc-shaped external threads are adopted on the roller.
In this embodiment, the second sensor 220 may be an inductive sensor or a hall sensor.
In this embodiment, the utility model provides a separation system mechanism adopts the grease lubrication mode, contains magnesium silicate hydroxide granule in the lubricating grease, and magnesium silicate hydroxide granule particle diameter is less than 10 um.
In another embodiment, the separation system mechanism provided by the present invention adopts a grease lubrication method, and the grease includes nano copper powder, nano graphite, nano calcium carbonate, and nano PTFE.
The utility model provides a pair of commercial vehicle clutch electric separation system's working process includes:
the driving motor 100 rotates through the first gear 121 and the second gear 122, the planetary roller screw 130 converts the rotary motion transmitted by the second gear 122 into the linear motion of the nut 136, meanwhile, the nut 136 moves along the guide rod 111, the nut 136 transmits the linear motion to the push rod 140 and the piston 142 mounted on the push rod 140, further drives the piston 142 and the push rod 143 to push the release lever 151 to move, and finally the release lever 151 drives the release bearing 150 to complete the clutch action; during the movement, the nut 136 in the planetary roller screw 130 drives the position detection rod 230 to move, and the second sensor 220 can detect the extending length of the position detection rod.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (9)
1. An electric clutch disengagement system for a commercial vehicle, comprising:
a housing on which a guide bar is fixedly mounted;
a drive motor;
the first transmission gear is fixedly connected with the power output end of the driving motor;
a second transmission gear meshed with the first transmission gear;
the screw rod is fixedly connected with the second transmission gear;
the screw nut is matched with the screw and can move along the axial direction of the screw, and the screw nut is installed on the guide rod and can slide along the axial direction of the guide rod;
the sensor is arranged at one end of the lead screw connected with the second transmission gear or on the shell;
one end of the push rod is fixedly connected with the screw nut, and the other end of the push rod is provided with an accommodating cavity;
the compression spring is arranged in the accommodating cavity, and one end of the compression spring is abutted against the inner wall of the accommodating cavity;
the piston is arranged in the accommodating cavity, and one end of the piston is abutted against the other end of the compression spring;
one end of the ejector rod is fixedly connected with the other end of the piston;
one end of the separation lever is fixedly connected with the other end of the ejector rod;
and the release bearing is fixedly connected with the other end of the release lever and is used for enabling the clutch to be selectively combined or separated.
2. The electric clutch disengagement system for commercial vehicles according to claim 1, further comprising:
the two elastic check rings are symmetrically arranged and fixedly arranged at two ends of the inner side of the screw nut;
the two symmetrically arranged retainers are arranged between the two symmetrically arranged elastic check rings, and a plurality of through holes are symmetrically arranged on the retainers;
the two ends of the plurality of rollers are respectively and correspondingly inserted into the through holes and are uniformly distributed and arranged along the circumferential direction of the screw rod, and the two ends of each roller are provided with outer gears;
and the two symmetrically arranged gear rings are correspondingly arranged on the inner sides of the two symmetrically arranged retainers respectively and are meshed with the external gear.
3. The electric clutch disengagement system for commercial vehicles according to claim 2, further comprising:
a position detection rod fixedly mounted on the lead screw nut;
wherein the position detection rod is fittingly insertable into the sensor to detect a moving position of the lead screw nut when the sensor is mounted on the housing.
4. The electric clutch disengagement system for commercial vehicles according to claim 2 or 3, wherein the lead screw nut is fixedly connected to the push rod by a screw.
5. The electric clutch disengagement system for commercial vehicles according to claim 4, wherein the sensor is an absolute encoder or an incremental encoder when the sensor is mounted on the end of the lead screw connected to the second transmission gear.
6. The electrical disconnect system of a commercial vehicle clutch of claim 3, wherein the sensor is an inductive sensor or a Hall sensor when the sensor is mounted to the housing.
7. The electric clutch disengagement system for commercial vehicles according to claim 5, characterized in that the lead screw and/or lead screw nut is a triangular thread with a profile angle of 90 °; and/or
The roller adopts convex arc external threads.
8. The electric clutch disengagement system for commercial vehicles according to claim 7, wherein the electric clutch disengagement system is grease lubricated.
9. The electric clutch disengagement system for commercial vehicles of claim 8 wherein the grease contains magnesium silicate hydroxide particles and the particles are less than 10um in size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021439936.1U CN212479960U (en) | 2020-07-21 | 2020-07-21 | Electric clutch separating system for commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021439936.1U CN212479960U (en) | 2020-07-21 | 2020-07-21 | Electric clutch separating system for commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212479960U true CN212479960U (en) | 2021-02-05 |
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ID=74452219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021439936.1U Active CN212479960U (en) | 2020-07-21 | 2020-07-21 | Electric clutch separating system for commercial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212479960U (en) |
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2020
- 2020-07-21 CN CN202021439936.1U patent/CN212479960U/en active Active
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