Gear transmission structure for automobile glass lifting device

Abstract

The utility model relates to a gear transmission structure for an automobile glass lifting device, which comprises a worm, a worm gear, a gear connector and a toothed plate component, the worm is meshed with the worm gear, a connecting seat body is integrally formed on the inner side of the worm gear, a connecting notch is arranged in the middle of the connecting seat body, and the gear connector is connected with the connecting notch. The gear connector comprises a connecting part, a first meshing tooth part and a second meshing tooth part which are sequentially connected from bottom to top, the connecting part is used for being installed in the connecting notch, the first meshing tooth part and the second meshing tooth part can be used for being meshed with the toothed plate assembly, the tooth number of the first meshing tooth part is different from that of the second meshing tooth part, and the tooth number of the second meshing tooth part is different from that of the first meshing tooth part. According to the utility model, the first meshing tooth part and the second meshing tooth part with different tooth numbers are integrated on the gear connector, and the first meshing tooth part and the second meshing tooth part are matched and mounted with the connecting seat body integrally formed with the worm gear, so that the function that a single gear connector is adaptive to various output modes is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear transmission structure, in particular to a gear transmission structure for automobile glass lifting device. BACKGROUND

[0002] The automobile electric glass lifting device is an important component in the modern automobile door system, and its main function is to realize the stable lifting of the window glass. The device is usually composed of a driving motor, a speed reduction mechanism (such as a worm-worm pair), an output transmission mechanism, and a tooth plate linked with a lifting arm. Among them, the power output by the driving device needs to be transmitted to the tooth plate through the intermediate transmission component to drive the glass lifting.

[0003] In the prior art, in order to adapt to the structural differences and performance requirements of different vehicle door systems, the output gear mechanism of the glass lifting motor and the glass lifting device thereof with the patent application number 202220385644.7, the gear connector 3 is coaxially fixed on one side of the transmission block 2, and is meshed and connected with the tooth plate 4 on the other side. When different vehicle door systems need to match the second gear 303 with different number of teeth for the tooth plate 4, the number of teeth of the second gear 303 is changed. At this time, only the corresponding gear connector 3 needs to be matched to meet the matching requirements without changing the transmission block 2.

[0004] This scheme realizes the generalization of the transmission block to a certain extent and reduces the types of parts. However, the user or production and assembly personnel need to replace the entire gear connector to switch the output teeth. Then, in the after-sales maintenance scene, multiple gear connectors spare parts need to be prepared, thereby increasing the warehouse storage and inventory management cost, and it is difficult to realize precise prediction of replenishment and other problems. Therefore, it is necessary to further improve the above technical problems, so that a single gear connector can switch different output tooth number modes without changing the main structure, and the product adaptability is further improved. UTILITY MODEL CONTENTS

[0005] The utility model provides a gear transmission structure for automobile glass lifting device, solve above -mentioned problem existing in the use process in prior art.

[0006] The technical scheme of the utility model is as follows: a gear transmission structure for automobile glass lifting device, comprising worm, worm wheel, gear connector and tooth plate assembly, the worm is engaged with the worm wheel, the worm wheel inside integral mould has connecting seat body, the connecting seat body middle part is provided with connecting slot, the gear connector includes the connecting portion, first meshing tooth portion and second meshing tooth portion that connect successively from below to top, the connecting portion is used for installing in connecting slot, first meshing tooth portion and second meshing tooth portion can be used for engaging with tooth plate assembly, the tooth number of first meshing tooth portion and second meshing tooth portion is different.

[0007] Preferably, the first engagement tooth part has an even number of teeth.

[0008] Preferably, the connecting part comprises positioning detents, the number of the positioning detents is half of the number of teeth of the first engagement tooth part, and each of the positioning detents is axially aligned with and downwardly extended to connect with every other tooth of the first engagement tooth part.

[0009] Preferably, the connecting notch comprises a first tooth-shaped notch for the first engagement tooth part to enter and a second tooth-shaped notch for the connecting part to enter, the second tooth-shaped notch comprises a corresponding number of tooth notches for the positioning detents to enter, and each of the tooth notches has a bearing seat at the bottom of the first tooth-shaped notch.

[0010] Preferably, when the positioning detents are in the tooth notches, the second engagement tooth part is in the same engagement plane as the tooth plate assembly; and when the positioning detents are in the first tooth-shaped notch and bear on the upper side of the bearing seat, the first engagement tooth part is in the same engagement plane as the tooth plate assembly.

[0011] Preferably, the tooth plate assembly comprises a tooth plate and a tooth plate connecting seat, and the tooth plate can be positionally adjusted in the tooth plate connecting seat in correspondence with the cooperation with the first engagement tooth part or the second engagement tooth part.

[0012] Preferably, the tooth plate is provided with a fixing screw, and the connecting seat is provided with a first threaded hole and a second threaded hole for the fixing screw to threadedly connect.

[0013] In summary, the utility model has the beneficial effects that:

[0014] 1. The utility model integrates the first engagement tooth part and the second engagement tooth part with different numbers of teeth on the gear connector, and the connecting seat body is integrally formed with the worm wheel to be cooperatively installed, thereby realizing the function of a single gear connector adapting to multiple output modes. When the transmission requirement of different door systems needs to be matched, the entire gear connector does not need to be replaced, and only the engagement state needs to be adjusted to switch the number of output teeth. The structure significantly improves the universality and application range of parts, reduces the types of spare parts, and reduces the inventory and management costs.

[0015] 2. By setting the number of teeth in the first meshing section to an even number, and by setting a positioning tooth in the connecting part with half the number of teeth in the first meshing section, and making it extend downwards and connect only to every other tooth in the first meshing section, this design not only enhances the structural strength and integrity of the gear connector itself, but also provides a reliable axial positioning mechanism for the two meshing states with the connecting slot: one state is used to activate the first meshing section, and the other is used to activate the second meshing section. By controlling the different positions of the positioning tooth on the tooth opening or the abutment, the first or second meshing section can be precisely switched to be in the same meshing plane with the gear plate assembly, thereby achieving independent and effective meshing of the two output tooth numbers. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the first meshing tooth part meshing with the tooth plate of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the second meshing tooth meshing with the toothed plate of this utility model;

[0019] Figure 3 This is an exploded view of the structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the worm gear part in this utility model;

[0021] Figure 5 This is a schematic diagram of the gear connector in this utility model.

[0022] In the diagram: 1. Worm; 2. Worm wheel; 3. Connecting seat; 31. Connecting slot; 311. First toothed groove; 312. Second toothed groove; 3121. Toothed opening; 313. Support seat; 4. Gear connector; 41. Connecting part; 411. Positioning tooth; 42. First meshing tooth; 43. Second meshing tooth; 51. Tooth plate; 52. Tooth plate connecting seat; 521. First threaded hole; 522. Second threaded hole; 53. Fixing screw. Detailed Implementation

[0023] The following will refer to the appendix in the embodiments of this utility model. Figures 1-5The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Example:

[0025] like Figures 1 to 5 As shown, this utility model discloses a gear transmission structure for an automotive window lifting device. Its application and installation in automotive electric window lifting devices are common knowledge to those skilled in the art, and therefore will not be further described in this patent.

[0026] In this utility model, the gear transmission structure includes a worm 1, a worm wheel 2, a gear connector 4, and a gear plate assembly. The worm 1 meshes with the worm wheel 2 to form a reduction transmission pair. The worm 1 is driven to rotate by a window lifting motor, which in turn drives the worm wheel 2 to rotate, thereby amplifying the torque and reducing the speed. A connecting seat 3 is integrally formed inside the worm wheel 2. A connecting slot 31 is provided in the middle of the connecting seat 3. The connecting seat 3 is used to install the gear connector 4 to achieve further power output. The gear connector 4 includes a connecting part 41, a first meshing tooth part 42, and a second meshing tooth part 43 connected sequentially from bottom to top. The connecting part 41 is used to insert into the connecting slot 31 to achieve a coaxial fixed connection with the worm wheel 2. The first meshing tooth part 42 is located in the middle, and the second meshing tooth part 43 is located at the top. Both can mesh with the gear plate assembly for transmission, and the number of teeth on each part is different.

[0027] Furthermore, the number of teeth in the first meshing tooth section 42 is even, which facilitates the design of the subsequent positioning teeth 411. The connecting part 41 includes positioning teeth 411, the number of teeth in the positioning teeth 411 is half the number of teeth in the first meshing tooth section 42, and each positioning tooth 411 is axially aligned with every other tooth in the first meshing tooth section 42 and extends downward for connection. This design not only ensures the connection strength, but also provides a reliable mechanical positioning basis for switching between the two meshing modes.

[0028] The connecting slot 31 is a composite structure, and the connecting slot 31 comprises a first tooth-shaped slot 311 at the upper part and a second tooth-shaped slot 312 at the lower part. The profile of the first tooth-shaped slot 311 matches the shape of the first meshing tooth part 42, and is used for accommodating and positioning the first meshing tooth part 42; the second tooth-shaped slot 312 comprises a plurality of tooth openings 3121, the number of which is consistent with the number of the positioning clamping teeth 411 and the shape of which matches the shape of the positioning clamping teeth 411, and is used for embedded connection with the positioning clamping teeth 411. It should be noted that the gear connector 4 is installed in the connecting slot 31 in an interference fit, and the gear connector 4 and the middle part of the connecting seat body 3 have a hole for the rotating shaft in the prior art to pass through, the rotating shaft is used to rotate the base in the prior art, and in addition, the upper end of the rotating shaft can be externally threaded, and a nut is connected through the threads. The position of the nut is adjusted according to the position of the gear connector 4, so as to achieve the limiting effect. The setting of the rotating shaft should be the common knowledge of those skilled in the art, and therefore will not be described here. The tooth openings 3121 are provided with a bearing seat 313 at the bottom of the first tooth-shaped slot 311, which is used to support the positioning clamping teeth 411 in a specific state. When the positioning clamping teeth 411 are located in the tooth openings 3121, the second meshing tooth part 43 is in the same meshing plane as the toothed plate assembly; when the positioning clamping teeth 411 are located in the first tooth-shaped slot 311 and abut on the upper side of the bearing seat 313, the first meshing tooth part 42 is in the same meshing plane as the toothed plate assembly.

[0029] In addition, the toothed plate assembly comprises a toothed plate 51 and a toothed plate connecting seat 52, and the toothed plate 51 can be adjusted in position on the toothed plate connecting seat 52 in correspondence with the cooperation with the first meshing tooth part 42 or the second meshing tooth part 43. Specifically, a fixing screw 53 is arranged on the toothed plate 51, and the connecting seat is provided with a first threaded hole 521 and a second threaded hole 522 for threaded connection of the fixing screw 53. When the fixing screw 53 is screwed into the first threaded hole 521, the toothed plate 51 is fixed at the first position, and at this time, the position of the toothed plate 51 is just engaged with the first meshing tooth part 42, so as to realize meshing transmission. When the fixing screw 53 is screwed into the second threaded hole 522, the toothed plate 51 is fixed at the second position, and at this time, the toothed plate 51 is just engaged with the second meshing tooth part 43, so as to realize meshing transmission.

[0030] Working process and mode switching explanation:

[0031] 1. Enable the first meshing tooth part 42

[0032] The gear connector 4 is inserted into the connecting slot 31, so that the positioning detent 411 is disengaged from the tooth opening 3121 of the second tooth-shaped slot 312, and the positioning detent 411 enters the first tooth-shaped slot 311 and abuts against the upper surface of the abutting seat 313. At this time, the first meshing tooth portion 42 is at the working height, and the second meshing tooth portion 43 is higher than the meshing plane. Then, the fixing screw 53 on the tooth plate 51 is screwed into the first threaded hole 521, so that the tooth plate 51 is accurately meshed with the first meshing tooth portion 42.

[0033] 2. Enable the second meshing tooth portion 43

[0034] The gear connector 4 is inserted into the connecting slot 31, so that the positioning detent 411 is disengaged from the tooth opening 3121 of the second tooth-shaped slot 312, and the positioning detent 411 enters the first tooth-shaped slot 311 and abuts against the upper surface of the abutting seat 313. At this time, the first meshing tooth portion 42 is at the working height, and the second meshing tooth portion 43 is higher than the meshing plane. Then, the fixing screw 53 on the tooth plate 51 is screwed into the first threaded hole 521, so that the tooth plate 51 is accurately meshed with the first meshing tooth portion 42.

[0035] The above-mentioned switching between the two modes does not need to replace the gear connector 4 body, but only needs to change the installation direction and the fixing position of the tooth plate 51, so that the operation is simple and rapid in response, and is especially suitable for the after-sales maintenance scene.

[0036] Meanwhile, it needs to be pointed out that the terms such as "front", "rear", "vertical", "horizontal", and the like indicated by the directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as limiting the protection scope of the utility model.

[0037] The above-mentioned only for the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A gear transmission structure for an automotive window regulator, characterized in that: The device includes a worm, a worm wheel, a gear connector, and a gear plate assembly. The worm meshes with the worm wheel, and a connecting seat is integrally formed on the inner side of the worm wheel. A connecting slot is formed in the middle of the connecting seat. The gear connector includes a connecting part, a first meshing tooth part, and a second meshing tooth part connected sequentially from bottom to top. The connecting part is used to be installed in the connecting slot. Both the first and second meshing teeth parts can be used to mesh with the gear plate assembly. The number of teeth in the first and second meshing teeth parts is different.

2. The gear transmission structure for an automotive window lifting device according to claim 1, characterized in that: The number of teeth in the first meshing tooth section is an even number.

3. The gear transmission structure for an automotive window lifting device according to claim 2, characterized in that: The connecting part includes positioning teeth, the number of teeth of which is half the number of teeth of the first meshing tooth part, and each positioning tooth is axially aligned with every other tooth in the first meshing tooth part and extends downward for connection.

4. The gear transmission structure for an automotive window lifting device according to claim 3, characterized in that: The connecting slot includes a first toothed slot for the first meshing tooth to enter and a second toothed slot for the connecting part to enter. The second toothed slot includes a corresponding number of tooth openings for the positioning teeth to enter, and each tooth opening has a support seat located at the bottom of the first toothed slot.

5. A gear transmission structure for an automotive window lifting device according to claim 4, characterized in that: When the positioning tooth is located inside the tooth opening, the second meshing tooth and the tooth plate assembly are on the same meshing plane; when the positioning tooth is located inside the first tooth groove and abuts against the upper side of the abutment seat, the first meshing tooth and the tooth plate assembly are on the same meshing plane.

6. A gear transmission structure for an automotive window lifting device according to claim 1, characterized in that: The toothed plate assembly includes a toothed plate and a toothed plate connecting seat. The toothed plate can be positionally adjusted in the toothed plate connecting seat in accordance with its engagement with a first meshing tooth or a second meshing tooth.

7. A gear transmission structure for an automotive window lifting device according to claim 6, characterized in that: The toothed plate is provided with a fixing screw, and the connecting seat is provided with a first threaded hole and a second threaded hole for threaded connection of the fixing screw.

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