CN212176893U - Electric stay bar with friction damping device - Google Patents
Electric stay bar with friction damping device Download PDFInfo
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- CN212176893U CN212176893U CN202020249463.2U CN202020249463U CN212176893U CN 212176893 U CN212176893 U CN 212176893U CN 202020249463 U CN202020249463 U CN 202020249463U CN 212176893 U CN212176893 U CN 212176893U
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- screw rod
- friction
- friction plate
- damping device
- pipe
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Abstract
The utility model discloses a take friction damping device's electronic vaulting pole, include: the bearing pipe is internally provided with a power device, and the upper end of the bearing pipe is provided with a first bulb; the screw rod assembly comprises a supporting pipe, a screw rod and a screw rod guide pipe, the upper end of the screw rod guide pipe is connected with the screw rod through a nut seat and used for converting the circumferential motion of the screw rod into the linear motion of the screw rod guide pipe, the lower end of the screw rod guide pipe is provided with a second ball head, and an output shaft of the power device is connected with the upper end of the screw rod through a coupler; the friction damping device comprises a shell, a friction plate, two pressing plates and an elastic component, wherein the elastic component is used for promoting the friction plate and the two pressing plates to be always kept in a tightly attached state, a coupler penetrates through a central through hole of the shell, and the friction plate is sleeved on the periphery of the coupler. Can increase lead screw pivoted resistance contribution among its technical scheme and give electronic vaulting pole, and then offset the dead weight problem of car tail-gate effectively, can let the car tail-gate hover in any position, the switch door is steady, and the self-defined height of opening the door promotes to use and experiences.
Description
Technical Field
The utility model relates to an automobile tail-gate is with electronic vaulting pole technical field, especially relates to a take friction damping device's electronic vaulting pole.
Background
The automobile tail gate usually needs to use the tail gate electric stay bar when being opened and closed, and in order to improve the supporting performance of the electric tail gate stay bar, a damper is arranged in an outer sleeve of the electric tail gate stay bar to improve damping torque, so that the electric tail gate stay bar has good use performance. The traditional damper applied to the stay bar of the electric tail gate has poor damping effect in the movement process, and easily loses the damping effect under the action of the dead weight of the automobile tail gate.
SUMMERY OF THE UTILITY MODEL
In view of the above problems in the prior art, an electric stay with a friction damping device is provided to overcome the above technical shortcomings, which aims to increase the resistance contribution of the rotation of the screw rod and effectively offset the self-weight problem of the automobile tail gate.
The specific technical scheme is as follows:
an electric strut with a friction damping device, comprising:
the bearing pipe is internally provided with a power device, and the upper end of the bearing pipe is provided with a first bulb;
the screw rod assembly comprises a supporting pipe arranged in the bearing pipe in a penetrating manner, a screw rod rotatably arranged in the supporting pipe and a screw rod guide pipe, the upper end of the screw rod guide pipe extends into the bearing pipe and is connected with the screw rod through a nut seat so as to convert the circumferential motion of the screw rod into the linear motion of the screw rod guide pipe, the lower end of the screw rod guide pipe is provided with a second ball head, and an output shaft of the power device is connected with the upper end of the screw rod through a coupler;
the friction damping device comprises a shell fixedly arranged in a bearing pipe, a friction plate rotatably arranged in the shell, two pressing sheets respectively tightly attached to the upper end face and the lower end face of the friction plate, and an elastic member arranged in the shell, wherein the elastic member is used for promoting the friction plate and the two pressing sheets to be always kept in a tightly attached state, a coupler penetrates through a central through hole of the shell, and the friction plate is sleeved on the periphery of the coupler.
Preferably, the shell is of a sleeve structure with a central through hole, the inner periphery of the upper part of the shell is also screwed with a limiting seat, and two ends of the elastic component respectively abut against the limiting seat and one pressing sheet.
Preferably, the elastic member is a wave spring.
Preferably, the coupling comprises a first rotating member connected with an output shaft of the power device, a second rotating member connected with the lead screw, and a buffer sleeve arranged between the first rotating member and the second rotating member, and the friction plate is sleeved on the periphery of the second rotating member.
Preferably, the second rotating member has gear teeth on its outer periphery, and the friction plate is annular and has inner teeth grooves on its inner peripheral wall for matching with the gear teeth.
Preferably, the second rotating member is further provided with a threaded mounting hole for screwing the screw rod.
Preferably, the inner circumference of one end of the outer shell, which is far away from the limiting seat, further extends inwards to form a limiting ring structure, the upper end face and the lower end face of one of the pressing sheets respectively abut against the friction plate and the elastic member, and the upper end face and the lower end face of the other pressing sheet respectively abut against the limiting ring structure and the friction plate.
Preferably, the friction plate is made of a polymer material.
Preferably, the power device is a motor, and the carrier tube has a channel for routing.
The beneficial effects of the above technical scheme are that:
the electric stay bar with the friction damping device comprises a bearing pipe, a power device, a first ball head, a screw rod assembly, a second ball head, the friction damping device and a coupler, when the electric stay bar extends and contracts, the resistance device can increase the resistance contribution of the screw rod to the electric stay bar, and further the dead weight problem of the automobile tail gate is effectively offset, the automobile tail gate can be hovered at any position, the door is opened and closed stably, the door opening height is customized, and the use experience is improved.
Drawings
FIG. 1 is a front view of an electric stay bar with a friction damping device according to the present invention;
FIG. 2 is a cross-sectional view of the electric stay bar with friction damping device of the present invention;
FIG. 3 is a front view of the friction damper in the electric stay with friction damper according to the present invention;
FIG. 4 is a cross-sectional view taken at angle A-A of FIG. 3;
fig. 5 is a partially enlarged view of a portion I in fig. 2.
Detailed Description
In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the following embodiments are specifically illustrated in conjunction with the accompanying drawings. And defines the up-down direction as shown in fig. 2 as the up-down direction in the present embodiment.
Referring to fig. 1 to 4, the electric stay with the friction damping device according to the present embodiment includes:
the bearing pipe 1 is internally provided with a power device 5, and the upper end of the bearing pipe 1 is provided with a first bulb 8;
the screw rod assembly comprises a supporting pipe 2 penetrating through the bearing pipe 1, a screw rod 4 rotatably arranged in the supporting pipe 2 and a screw rod guide pipe 3, the upper end of the guide pipe screw rod 3 extends into the bearing pipe 1 and is connected with the screw rod 4 through a nut seat so as to convert the circumferential motion of the screw rod 4 into the linear motion of the guide pipe screw rod 3, the lower end of the guide pipe screw rod 3 is provided with a second ball head 9, and the output shaft of the power device 5 is connected with the upper end of the screw rod 4 through a coupling 6;
the friction damping device 7 comprises a shell 10 fixedly arranged in the bearing pipe 1, a friction plate 13 rotatably arranged in the shell 10, two pressing sheets 14 respectively tightly attached to the upper end face and the lower end face of the friction plate 13, and an elastic member 12 arranged in the shell 10, wherein the elastic member 12 is used for enabling the friction plate 13 and the two pressing sheets 14 to be always kept in a tightly attached state, the coupling 6 penetrates through a central through hole of the shell 10, and the friction plate 13 is sleeved on the periphery of the coupling 6.
In the concrete application, the power device 5 drives the screw rod 4 to rotate through the coupler 6, the supporting tube 2 is fixed, the screw rod 4 drives the guide tube screw rod 3 to linearly move along the supporting tube 2 through the nut seat, so that the basic function of the electric stay bar is realized, and the ball heads at the two ends of the electric stay bar respectively fix the automobile body and the tail gate, so that the two opposite ends of the guide tube screw rod 3 extend or contract, and the opening and closing of the automobile tail gate are realized. Meanwhile, the coupler 6 rotates along with the output shaft of the power device 5, the friction plate 13 rotates along with the coupler 6, and the elastic component 12 enables the friction plate 13 to be kept in a state of being tightly attached to the two pressing sheets 14, so that the friction plate 13 is constantly rubbed with the pressing sheets 14 when rotating the upper surface and the lower surface to generate resistance, a damping effect is provided, and particularly, when the power device 5 stops operating, the screw rod 4 and the guide pipe screw rod 3 can be kept at any positions in an auxiliary mode through the friction resistance between the pressing sheets 14 and the friction plate 13.
Based on above-mentioned technical scheme, take friction damping device 7's electronic vaulting pole is including bearing pipe 1, power device 5, first bulb 8, the lead screw subassembly, second bulb 9, friction damping device 7, shaft coupling 6, when electronic vaulting pole extends and contracts, resistance device can increase 4 pivoted resistance contributions of lead screw for electronic vaulting pole, and then offset the dead weight problem of car tail-gate effectively, can let the car tail-gate hover in any position, the switch door is steady, the self-defined height of opening the door, promote to use and experience.
In a preferred embodiment, the housing 10 is a sleeve structure having a central through hole, the inner circumference of the upper portion of the housing 10 is further screwed with a limiting seat 11, and two ends of the elastic member 12 respectively abut against the limiting seat 11 and one of the pressing plates 14. Further, the elastic member 12 is a wave spring. Further, the coupling 6 includes a first rotating member 16 connected to the output shaft of the power device 5, a second rotating member 15 connected to the lead screw 4, and a buffer sleeve 17 disposed between the first rotating member 16 and the second rotating member 15, and the friction plate 13 is sleeved on the outer periphery of the second rotating member 15. Further, the second rotating member 15 has gear teeth on its outer periphery, and the friction plate 13 is annular as a whole and has inner teeth grooves on its inner peripheral wall, which are matched with the gear teeth structure, so as to facilitate replacement of the friction plate 13. Further, the second rotating member 15 is provided with a threaded mounting hole for screwing the screw rod 4. Furthermore, the connection between the first rotary part 16 and the output shaft of the drive unit 5 can also be realized by a screw connection.
As a further preferred embodiment, the inner circumference of one end of the outer shell 10 away from the stopper seat 11 further extends inward to form a stopper ring structure, and the upper and lower end surfaces of one pressing plate 14 respectively abut against the friction plate 13 and the elastic member 12, and the upper and lower end surfaces of the other pressing plate 14 respectively abut against the stopper ring structure and the friction plate 13, so that the function of the elastic member 12 pressing the two pressing plates 14 and the friction plate 13 against each other can be ensured. The two pressing sheets 14 press the friction sheet 13, and the friction sheet 13 is pressed by the wave spring to generate friction force, so that friction torque is additionally added when the screw rod 4 rotates, and the friction torque needs to be overcome. Further, the friction plate 13 is made of a polymer material, specifically, thermoplastic polyimide or polyetheretherketone. Furthermore, the power device 5 is a motor, and the carrier tube 1 has a channel for routing wires, so as to achieve the purpose of powering on the power device 5.
The foregoing is only a preferred embodiment of the present invention, which is illustrative, not limiting. Those skilled in the art will appreciate that many variations, modifications, and equivalents may be made thereto without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. An electric stay bar with a friction damping device, comprising:
the bearing pipe (1) is internally provided with a power device (5), and the upper end of the bearing pipe (1) is provided with a first bulb (8);
the screw rod assembly comprises a supporting pipe (2) penetrating through the bearing pipe (1), a screw rod (4) rotatably arranged in the supporting pipe (2) and a screw rod guide pipe (3), the upper end of the screw rod guide pipe (3) extends into the bearing pipe (1) and is connected with the screw rod (4) through a nut seat so as to convert the circumferential motion of the screw rod (4) into the linear motion of the screw rod guide pipe (3), the lower end of the screw rod guide pipe (3) is provided with a second ball head (9), and the output shaft of the power device (5) is connected with the upper end of the screw rod (4) through a coupler (6);
the friction damping device (7) comprises a shell (10) fixedly arranged in the bearing pipe (1), a friction plate (13) rotatably arranged in the shell (10), two pressing sheets (14) tightly attached to the upper end face and the lower end face of the friction plate (13) respectively, and an elastic member (12) arranged in the shell (10), wherein the elastic member (12) is used for enabling the friction plate (13) and the two pressing sheets (14) to be kept in a tightly attached state all the time, the coupler (6) penetrates through a central through hole of the shell (10), and the friction plate (13) is sleeved on the periphery of the coupler (6).
2. The electric stay with friction damping device according to claim 1, wherein the housing (10) is a sleeve structure having a central through hole, the inner circumference of the upper portion of the housing (10) is further screwed with a limit seat (11), and both ends of the elastic member (12) respectively abut against the limit seat (11) and one of the pressing plates (14).
3. An electric stay with friction damping device according to claim 1 characterised in that said elastic member (12) is a wave spring.
4. The electric stay with friction damping device according to claim 1, wherein the coupling (6) comprises a first rotating member (16) connected to the output shaft of the power device (5), a second rotating member (15) connected to the lead screw (4), and a cushion sleeve (17) disposed between the first rotating member (16) and the second rotating member (15), and the friction plate (13) is fitted around the outer circumference of the second rotating member (15).
5. An electric stay with friction damper according to claim 4 wherein said second rotating member (15) has gear teeth on its outer periphery, said friction plate (13) is generally ring-shaped and has internal teeth grooves on its inner peripheral wall to match the gear teeth structure.
6. The electric stay bar with the friction damping device according to claim 5, wherein the second rotating member (15) is further provided with a threaded mounting hole for screwing the lead screw (4).
7. The electric stay with friction damping device according to claim 2, wherein the inner periphery of the end of the outer shell (10) facing away from the stopper seat (11) further extends inward to form a stopper ring structure, and the upper and lower end faces of one of the pressing plates (14) respectively abut against the friction plate (13) and the elastic member (12), and the upper and lower end faces of the other pressing plate (14) respectively abut against the stopper ring structure and the friction plate (13).
8. An electric stay with friction damping means according to claim 1 characterised in that the friction plate (13) is made of a polymeric material.
9. Electric stay with friction damping device according to claim 1 characterized in that the power device (5) is an electric motor and the carrier tube (1) has a passage for wiring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020249463.2U CN212176893U (en) | 2020-03-04 | 2020-03-04 | Electric stay bar with friction damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020249463.2U CN212176893U (en) | 2020-03-04 | 2020-03-04 | Electric stay bar with friction damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212176893U true CN212176893U (en) | 2020-12-18 |
Family
ID=73777289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020249463.2U Active CN212176893U (en) | 2020-03-04 | 2020-03-04 | Electric stay bar with friction damping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212176893U (en) |
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2020
- 2020-03-04 CN CN202020249463.2U patent/CN212176893U/en active Active
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