CN211778641U

CN211778641U - Integrated multifunctional gear box

Info

Publication number: CN211778641U
Application number: CN202020250910.6U
Authority: CN
Inventors: 潘忠利
Original assignee: Wuxi Krapelong Automotive Technology Co ltd
Current assignee: Wuxi Krapelong Automotive Technology Co ltd
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-10-27
Anticipated expiration: 2030-03-04

Abstract

The utility model discloses an integrated form multifunctional gear case, including the box, supply with the input part that is connected with power supply device and supply with the output shaft that is connected with transmission device install the function piece on the output shaft, at least one in the connector that possesses the hookup and the function of skidding and the damping piece that possesses the damping function is chooseed for use to the function piece. The gear box integration has power transmission function, hookup function, the function of skidding and damping function, and this use functionality that has both promoted the gear box has greatly reduced application system holistic weight, volume and manufacturing cost again for application system has light in weight, small, occupation space is little, low in production cost's advantage, does benefit to its whole production and processing and installation and arranges, fine satisfied the development demand of using the product.

Description

Integrated multifunctional gear box

Technical Field

The utility model relates to a gear box technical field specifically provides a multi-functional gear box of integrated form.

Background

The conventional electric stay bar system of the automobile tail door comprises: the transmission device comprises a motor, a gearbox, a transmission device (such as a screw rod) and a support rod, and in order to realize accurate and safe transmission of power to the transmission device by the gearbox, protective devices such as a coupler, a damper, a clutch and the like are usually arranged between the gearbox and the transmission device. However, due to the fact that a plurality of protection devices are installed, the whole size of the electric stay bar system of the automobile tail door is large, the occupied space is large, the production cost is high, and the development requirement of modern new energy electric automobiles can not be well met.

In view of this, the present invention is especially provided.

Disclosure of Invention

In order to overcome the defects, the utility model provides an integrated form multifunctional gear box, it is not only service function many, and rational in infrastructure, compact, can make application system wholly have light in weight, small, occupation space is little, low in production cost's advantage, do benefit to application system production and processing and installation and arrange.

The utility model discloses a solve the technical scheme that its technical problem adopted and be: an integrated multifunctional gear box comprises a box body, an input part and an output shaft, wherein the input part is connected with a power supply device, the output shaft is connected with a transmission device, a functional piece is mounted on the output shaft, and the functional piece selects at least one of a connecting piece with a connecting and slipping function and a damping piece with a damping function.

As a further improvement of the utility model, the functional part selects the connecting part and the damping part.

As a further improvement, the connector has a spline housing that can be positioned and cup jointed on the transmission device, the spline housing tight fit inlay and adorn in the output shaft, just the spline housing with it has a friction shell fragment to still overlap between the output shaft.

As a further improvement of the present invention, the output shaft is provided with a mounting groove extending along the axial direction thereof and opening on an axial end surface thereof, and the spline housing is embedded in the mounting groove in a close fit manner;

correspondingly, the friction elastic sheet is sleeved between the mounting groove and the spline housing.

As a further improvement of the present invention, the damping member has a flange outer ring, a damping inner ring, an inner torsion spring and an outer torsion spring, wherein the flange outer ring is sleeved outside the output shaft and can provide a supporting force to the output shaft, and meanwhile, one axial side of the flange outer ring is fixedly connected with the box body; the damping inner ring is arranged in the flange outer ring and is also sleeved outside the output shaft; the inner torsion spring is tightly held on the outer wall of the output shaft, and a torsion pin of the inner torsion spring is hooked on the damping inner ring; the outer torsion spring is tightly held on the outer wall of the damping inner ring, the twisting feet of the outer torsion spring are also hooked on the flange outer ring, and in addition, the outer torsion spring is opposite to the rotation direction of the inner torsion spring.

As a further improvement of the utility model, the inner diameter of the outer ring of the flange is matched with the outer diameter of the output shaft;

the inner wall of the flange outer ring is concavely provided with a containing ring groove extending along the circumferential direction of the inner wall, and the damping inner ring, the inner torsion spring and the outer torsion spring are all arranged in the containing ring groove.

As a further improvement, the utility model also is equipped with the closing cap, closing cap detachably position install in the flange outer lane is dorsad on the axial opposite side of box, just still be equipped with on the closing cap and expose the spline housing with the through-hole of output shaft.

The utility model has the advantages that: firstly, the gear box has still newly increased hookup, skidded and damping function on the basis that possesses the power transmission function to both promoted the service function nature of gear box, greatly reduced application system (like the electronic vaulting pole system of car tail-gate) holistic weight, volume and manufacturing cost again, make application system have light in weight, small, occupation space is little, low in production cost's advantage, do benefit to its whole production processing and installation and arrange, fine satisfied the development demand of using the product. ② the service function of gear box can make up the transform according to the user's demand, and then can make the suitability of gear box is better. Third the benchmark working value of connector the geometry and the benchmark working value etc. of damping piece all can be set for according to the product demand to can further widen suitability in the gear box is used.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of the integrated multifunctional gearbox of the present invention;

FIG. 2 is a schematic cross-sectional view of the gearbox of FIG. 1;

FIG. 3 is a schematic view of the assembled structure of the gearbox and motor shown in FIG. 1;

fig. 4 is a schematic structural diagram of a second embodiment of the integrated multifunctional gearbox of the present invention;

FIG. 5 is a schematic cross-sectional view of the gear case shown in FIG. 4.

The following description is made with reference to the accompanying drawings:

1, a box body; 2-an input section; 3-an output shaft; 4-a coupling member; 40-spline housing; 41-friction spring plate; 5, a damping part; 50-flange outer ring; 51, damping inner rings; 52-internal torsion spring; 53-external torsion spring; 500-accommodating ring groove; and 6, sealing the cover.

Detailed Description

Other advantages and capabilities of the present invention will be readily apparent to those skilled in the art from the disclosure herein.

It should be understood that the structures, ratios, sizes, etc. shown in the drawings attached to the present specification are only used for matching with the contents disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any modification of the structures, changes of the ratio relation or adjustment of the size should still fall within the scope covered by the technical contents disclosed in the present invention without affecting the function and the achievable purpose of the present invention.

Example 1:

referring to fig. 1 to fig. 3, there are shown a schematic structural diagram, a schematic sectional structural diagram, and an assembly structural diagram of the integrated multifunctional gearbox according to the first embodiment of the present invention when assembled with a motor.

The integrated multifunctional gear box comprises a box body 1 (the outer gear ring is attached to a part of the box body in the embodiment), an input part 2 (an input shaft or an input gear can be adopted) connected with a power supply device (such as a motor M), and an output shaft 3 connected with a transmission device (such as a screw rod), and is characterized in that a functional part is installed on the output shaft 3, and the functional part is at least one of a connecting part 4 with a connecting and slipping function and a damping part 5 with a damping function.

In the present embodiment, it is preferable that the functional member is a coupling member 4 and a damping member 5.

In this embodiment, preferably, the coupling member 4 has a spline housing 40 (internal spline structure) that can be positioned and sleeved on the transmission device, the spline housing 40 is tightly fitted and embedded in the output shaft 3, and a friction elastic sheet 41 is further sleeved between the spline housing 40 and the output shaft 3.

Further preferably, the output shaft 3 is provided with an installation groove which extends along the axial direction and is opened on one end surface of the output shaft in the axial direction, and the spline housing 40 is tightly fitted and embedded in the installation groove; correspondingly, the friction elastic sheet 41 is sleeved between the mounting groove and the spline housing 40.

In this embodiment, preferably, the damping member 5 has a flange outer ring 50, a damping inner ring 51, an inner torsion spring 52 and an outer torsion spring 53, wherein the flange outer ring 50 is sleeved outside the output shaft 3 and can provide a supporting acting force for the output shaft 3, meanwhile, one axial side of the flange outer ring 50 is also fixedly connected to the box body 1, and a welding fixing manner or an integral connection manner can be adopted for the fixing manner between the flange outer ring 50 and the box body 1; the damping inner ring 51 is arranged in the flange outer ring 50, and the damping inner ring 51 is also sleeved outside the output shaft 3; the inner torsion spring 52 is tightly held on the outer wall of the output shaft 3, and a torsion pin of the inner torsion spring 52 is also hooked on the damping inner ring 51; the outer torsion spring 53 is tightly held on the outer wall of the damping inner ring 51, the twisting feet of the outer torsion spring 53 are also hooked on the flange outer ring 50, and in addition, the rotation directions of the outer torsion spring 53 and the inner torsion spring 52 are opposite.

Further preferably, the inner diameter of the flange outer ring 50 is matched with the outer diameter of the output shaft 3, so as to support the output shaft; the outer wall of the flange outer ring is not unique in shape and can be designed according to the product requirements;

in addition, a containing ring groove 500 extending along the circumferential direction is concavely arranged on the inner wall of the flange outer ring 50, and the damping inner ring 51, the inner torsion spring 52 and the outer torsion spring 53 are all installed in the containing ring groove 500.

Further preferably, a sealing cover 6 is further provided, the sealing cover 6 is detachably positioned and mounted on the other axial side, opposite to the box body 1, of the flange outer ring 50, and a through hole capable of exposing the spline housing 40 and the output shaft 3 is further provided on the sealing cover 6.

Example 2:

referring to fig. 4 to 5, a schematic structural diagram and a schematic sectional structural diagram of a second embodiment of the integrated multifunctional gearbox of the present invention are shown.

The gearbox structure shown in the embodiment 2 is basically the same as that shown in the embodiment 1, and the main difference is that: the outer wall shape of the flange outer 50 shown in embodiment 2 is different from the outer wall shape of the flange outer 50 shown in embodiment 1. The shape difference of the outer wall of the outer ring 50 of the flange is mainly determined by the design requirement of the product, and of course, the shape difference of the outer wall further widens the applicability of the gearbox in application.

According to the structure of gear box can know, the gear box has still newly increased hookup, skidded and damping function on the basis that possesses the power transmission function, just the gear box realizes that hookup, skidded and damping function's theory of operation does:

a) the functions of connection and slipping are realized: after the gear box is assembled, static friction force exists among the output shaft 3, the friction elastic sheet 41 and the spline housing 40, and the static friction force among the three can be adjusted by adjusting the interference amount of the friction elastic sheet 41. When the gearbox normally works, the power output by the motor can drive the friction elastic sheet 41 and the spline housing 40 to rotate forwards or backwards together through the output shaft 3, and when the gearbox is operated manually, namely the transmission device drives the output shaft 3 to move reversely, the power output by the transmission device can drive the output shaft 3 to rotate forwards or backwards through the spline housing 40 and the friction elastic sheet 41, but if the sliding friction force (namely resistance force) between the spline housing 40 and the friction elastic sheet 41 is larger than a set value of static friction force, the spline housing 40 can slip and idle, so that the teeth inside the gearbox are not easily damaged.

b) The damping function is realized: the utility model discloses in, the accessible is coordinated interior torsional spring 52 with the torsion size of outer torsional spring 53 interior torsional spring 52 embraces tightly the frictional force size of 3 outer walls of output shaft and outer torsional spring 53 embraces tightly the frictional force size of damping inner circle 51 outer wall adjusts the moment of torsion of damping piece 5 (if set up to 0.1 N.m). When the motor drives the output shaft 3 to rotate forward, the inner torsion spring 52 tightens the output shaft 3 more and more, and correspondingly, the outer torsion spring 53 loosens the damping inner ring 51 more and more, so that the damping inner ring 51 can rotate under the driving of the inner torsion spring 52; when the motor drives the output shaft 3 to rotate reversely, the inner torsion spring 52 tightens the output shaft 3 more and more, and the outer torsion spring 53 tightens the damping inner ring 51 more and more, so that the output shaft 3 can rotate as long as the rotating power of the output shaft 3 is greater than the torque of the damping member 5 in the reverse rotation process. From the above, the damping member 5 of the present invention belongs to a two-way damper.

To sum up, the gear box integration has power transmission function, hookup function, the function of skidding and damping function, and this had both promoted the service function nature of gear box, and greatly reduced application system (like the electronic vaulting pole system of car tail-gate) holistic weight, volume and manufacturing cost again for application system has light in weight, small, occupation space is little, low in production cost's advantage, does benefit to its whole production processing and installation and arranges, fine satisfied the development demand of using the product.

The above description is only a preferred embodiment of the present invention, but not intended to limit the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as within the protection scope of the present invention.

Claims

1. An integrated multifunctional gear box comprises a box body (1), an input part (2) connected with a power supply device and an output shaft (3) connected with a transmission device, and is characterized in that: the output shaft (3) is provided with a functional piece, and the functional piece is at least one of a connecting piece (4) with connecting and slipping functions and a damping piece (5) with damping functions.

2. The integrated multifunction gearbox of claim 1, wherein: the functional parts adopt a connecting part (4) and a damping part (5).

3. The integrated multifunction gearbox of claim 1, wherein: the connecting piece (4) is provided with a spline sleeve (40) which can be positioned and sleeved on the transmission device, the spline sleeve (40) is embedded in the output shaft (3) in a tight fit mode, and a friction elastic sheet (41) is further sleeved between the spline sleeve (40) and the output shaft (3).

4. The integrated multifunction gearbox of claim 3, wherein: the output shaft (3) is provided with an installation groove which extends along the axial direction of the output shaft and is opened on one axial end surface of the output shaft, and the spline sleeve (40) is embedded in the installation groove in a tight fit manner;

correspondingly, the friction elastic sheet (41) is sleeved between the mounting groove and the spline sleeve (40).

5. The integrated multifunction gearbox of claim 3, wherein: the damping piece (5) is provided with a flange outer ring (50), a damping inner ring (51), an inner torsion spring (52) and an outer torsion spring (53), wherein the flange outer ring (50) is sleeved outside the output shaft (3) and can provide a supporting acting force for the output shaft (3), and meanwhile, one axial side of the flange outer ring (50) is fixedly connected with the box body (1); the damping inner ring (51) is arranged in the flange outer ring (50), and the damping inner ring (51) is also sleeved outside the output shaft (3) at the same time; the inner torsion spring (52) is tightly held on the outer wall of the output shaft (3), and the torsion foot of the inner torsion spring (52) is also hooked on the damping inner ring (51); the outer torsion spring (53) is tightly held on the outer wall of the damping inner ring (51), the twisting feet of the outer torsion spring (53) are also hooked on the flange outer ring (50), and in addition, the outer torsion spring (53) and the inner torsion spring (52) are opposite in rotation direction.

6. The integrated multifunction gearbox of claim 5, wherein: the inner diameter of the flange outer ring (50) is matched with the outer diameter of the output shaft (3);

the inner wall of the flange outer ring (50) is concavely provided with an accommodating ring groove (500) extending along the circumferential direction of the flange outer ring, and the damping inner ring (51), the inner torsion spring (52) and the outer torsion spring (53) are all arranged in the accommodating ring groove (500).

7. The integrated multifunction gearbox of claim 5, wherein: the sealing cover (6) is further arranged, the sealing cover (6) is detachably positioned and installed on the other axial side, back to the box body (1), of the flange outer ring (50), and a through hole capable of exposing the spline sleeve (40) and the output shaft (3) is further formed in the sealing cover (6).