CN220505726U - High reducing gear box of stability - Google Patents
High reducing gear box of stability Download PDFInfo
- Publication number
- CN220505726U CN220505726U CN202322108170.9U CN202322108170U CN220505726U CN 220505726 U CN220505726 U CN 220505726U CN 202322108170 U CN202322108170 U CN 202322108170U CN 220505726 U CN220505726 U CN 220505726U
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- CN
- China
- Prior art keywords
- wheel
- reduction gearbox
- ring
- screw rod
- worm
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- 230000001743 silencing effect Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 1
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- General Details Of Gearings (AREA)
Abstract
The utility model provides a high-stability reduction gearbox, which comprises a reduction gearbox body, a worm wheel positioned in the reduction gearbox body and a worm matched with the worm wheel in a transmission way, wherein the reduction gearbox body comprises a left box body and a right box body, screw holes are formed in the axial direction of the worm wheel, screw rod holes coaxially arranged with the screw holes are formed in the reduction gearbox body, the worm wheel comprises a wheel body and wheel shoulders positioned at two ends of the wheel body, the outer diameter of the wheel shoulders is smaller than that of the wheel body, wear-resisting rings are sleeved on the wheel shoulders, each wear-resisting ring comprises a radial supporting ring supported between the outer cylinder wall of the wheel shoulder and the inner wall of the screw rod hole, an axial supporting ring supported between the wheel body and the inner wall of the reduction gearbox and a limiting ring arranged towards one side of the screw rod hole, and the limiting ring is positioned in the screw rod holes and coaxially arranged with the screw rod holes. The screw rod is stable to install and good in silencing effect.
Description
Technical Field
The utility model relates to the field of automobile seat adjusting accessories, in particular to a reduction gearbox with high stability.
Background
The fore-aft adjustment of power seats relies on a horizontal drive, and the current application number is: CN201920318516.9, patent name is "a car seat horizontal driver", and it discloses "a car seat horizontal driver, including reducing gear box and U-shaped mount pad, be equipped with on the reducing gear box with the coaxial lead screw hole that sets up to be used for making the lead screw run through the reducing gear box of worm wheel, the reducing gear box includes left box and right box, its characterized in that: the two ends of the reduction gearbox provided with the screw rod holes are respectively sleeved with a buffer sleeve which is arranged in a mirror image mode and is respectively matched with each foolproof part, and the buffer sleeves are provided with first through holes coaxial with the screw rod holes; the gear box is characterized in that buffer sleeves are sleeved at two ends of the gear box and then clamped between two side walls of a U-shaped opening of the mounting seat, second through holes coaxial with the screw rod holes are formed in two side walls of the mounting seat, mounting lugs extending towards the outside of the U-shaped opening in the axial direction of the screw rod holes are arranged at the tail ends of the two side walls of the mounting seat, a stamping and stretching cylinder is arranged on the mounting lugs, threads are arranged on the inner wall of the cylinder, the worm wheel comprises a wheel body matched with the worm, shoulders are arranged at two ends of the wheel body, gaskets abutting against the end faces of the wheel body are arranged at the junctions of the shoulders and the wheel body, wear-resistant rings sleeved on the shoulders are arranged on the surfaces of the gaskets, opposite to the end faces of the wheel body, and comprise radial supporting rings supported between the outer cylinder walls of the shoulders and the inner walls of the screw rod holes and axial supporting rings supported between the gaskets and the inner walls of the gear box. When the screw rod is matched with the worm wheel through the screw rod hole, the contact area of the screw rod and the worm wheel is small, so that the screw rod is easy to swing, and noise is easy to generate when the reduction gearbox operates.
Disclosure of Invention
Based on the problems, the utility model aims to provide a reduction gearbox with stable screw rod installation and good silencing effect.
Aiming at the problems, the following technical scheme is provided: the utility model provides a gearbox that stability is high, includes the gearbox body, is located the worm wheel of gearbox body and with worm gear drive complex worm, the gearbox body includes left box and right box, the screw has been seted up on the axial direction of worm wheel, set up the lead screw hole that sets up with the screw same axle on the gearbox body, the worm wheel includes the wheel body and is located the shoulder at wheel body both ends, the outer diameter of shoulder is less than the outer diameter of wheel body, the cover is equipped with the wear ring on the shoulder, the wear ring includes the radial support ring that supports between shoulder outer cylinder wall and lead screw hole inner wall, supports axial support ring and the spacing ring that sets up towards lead screw hole one side between wheel body and gearbox inner wall, the spacing ring is located the lead screw downthehole and sets up rather than coaxial.
In the structure, the screw rod passes through the limiting ring to be in threaded connection with the screw hole of the worm wheel, so that the screw rod is matched with the reduction gearbox body. The contact area of the worm wheel and the screw rod can be increased by arranging the limiting ring, so that the stability of the cooperation of the screw rod and the reduction gearbox body is improved, the swing amplitude of the screw rod is reduced, the shaking of the screw rod is prevented, the noise is reduced, and the silencing effect of the utility model is improved. The radial support ring of the wear-resistant ring is used for bearing radial force generated when the worm wheel rotates, and the axial support ring is used for bearing axial force generated when the worm wheel rotates to drive the seat to advance and retreat, so that stress is effectively dispersed, abrasion is reduced, and noise is reduced.
The utility model is further arranged that the diameter of the outer circle of the limiting ring is smaller than that of the radial supporting ring.
By adopting the structure, the wear-resistant ring can be conveniently installed, and the limit ring can be conveniently matched with the screw rod, so that the stability of the wear-resistant ring is improved.
The utility model further provides that the joint of the limiting ring and the radial supporting ring is arranged in a beveling way.
By adopting the structure, the wear-resistant ring is more attached to the reduction gearbox body, so that the installation firmness of the wear-resistant ring is improved, and the reliability of the utility model is improved.
The utility model is further arranged that the outer end face of the limiting ring is provided with open grooves towards the axial direction of the limiting ring, and the open grooves are provided with four open grooves relative to the axial direction of the limiting ring.
By adopting the structure, the screw rod can conveniently pass through the limiting ring, the cladding between the limiting ring and the screw rod can be improved, and the stability of the screw rod is further improved; through having seted up the open slot can store lubricating grease in the open slot to can further improve the degree of smoothness of complex between lead screw and turbine and the spacing ring.
The utility model is further arranged that the screw rod hole penetrates through the buckling surfaces of the left box body and the right box body, the radial supporting ring is provided with a circumferential positioning part, and the circumferential positioning part is clamped between the buckling surfaces of the left box body and the right box body.
In the structure, the circumferential positioning part is used for circumferentially fixing the wear-resisting ring, so that the wear-resisting ring is prevented from rotating along with the worm wheel when the worm wheel rotates, a fixed state is kept between the wear-resisting ring and the reduction gearbox, and noise generated when the wear-resisting ring rotates relative to the reduction gearbox is reduced.
The utility model further provides that the radial support ring, the axial support ring, the limiting ring and the circumferential positioning part are integrally arranged.
By adopting the structure, the structural strength of the wear-resistant ring can be improved, the wear-resistant ring can be conveniently installed, and the reliability of the utility model is improved.
The utility model is further characterized in that tooth grooves matched with the worm are formed in the outer circumferential wall of the wheel body, and two ends of each tooth groove are positioned on the inner sides of two ends of the wheel body.
In the structure, the two ends of the tooth slot are not communicated with the wheel body, so that the two ends of the wheel body are smooth, and when the tooth slot is matched with the wear-resistant ring, a gasket is not required to be placed, so that the abrasion between the gasket and the wheel body and the noise are reduced, the silencing effect of the utility model is improved, the installation of the gasket can be reduced, and the convenience of the assembly of the utility model is improved.
The utility model is further arranged that the section of the tooth groove is arc-shaped.
By adopting the structure, the tooth grooves can be conveniently processed and opened, so that the processing convenience of the utility model is improved.
The utility model is further arranged that the opening of the tooth slot is arranged in a flaring way.
By adopting the structure, the worm wheel can be conveniently matched with the worm, so that the reliability of the utility model is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present utility model.
Fig. 2 is a schematic structural diagram of the second embodiment of the present utility model.
Fig. 3 is a schematic cross-sectional view of the present utility model.
Fig. 4 is a schematic diagram of a split structure of the present utility model.
FIG. 5 is a schematic view of the wear ring of the present utility model.
The meaning of the reference numerals in the figures: 1-a reduction gearbox body; 2-worm wheel; 3-worm; 11-left box body; 12-right box; 21-screw holes; 13-a screw hole; 22-wheel body; 23-wheel shoulders; 4-wear rings; 41-radial support ring; 42-an axial support ring; 43-limiting rings; 44-open slot; 45-a circumferential positioning portion; 221-tooth slots.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
It should be noted that all directional indications (such as up, down, left, right, front, back, and back … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indication is changed accordingly.
The utility model provides a high reducing gear box of stability as shown in fig. 1 through 5, includes reducing gear box body 1, is located worm wheel 2 and with worm wheel 2 transmission complex worm 3 of reducing gear box body 1, reducing gear box body 1 includes left box 11 and right box 12, screw 21 has been seted up in the axial direction of worm wheel 2, set up the lead screw hole 13 that sets up with screw 21 the same axis on the reducing gear box body 1, worm wheel 2 includes wheel body 22 and is located the shoulder 23 at wheel body 22 both ends, the diameter of the excircle of shoulder 23 is less than the excircle diameter of wheel body 22, the cover is equipped with wear ring 4 on the shoulder 23, wear ring 4 includes radial support ring 41 that supports between the outer cylinder wall of shoulder 23 and lead screw hole 13 inner wall, supports axial support ring 42 and the spacing ring 43 that sets up towards lead screw hole 13 one side between wheel body 22 and reducing gear box inner wall, spacing ring 43 is located lead screw hole 13 and sets up with it coaxial.
In the structure, the screw rod passes through the limiting ring 43 and is in threaded connection with the screw hole 21 of the worm wheel 2, so that the screw rod is matched with the reduction gearbox body 1. By arranging the limiting ring 43, the contact area between the worm wheel 2 and the screw rod can be increased, so that the stability of the screw rod matched with the reduction gearbox body 1 is improved, the swing amplitude of the screw rod is reduced, the screw rod is prevented from shaking, the noise is reduced, and the silencing effect of the utility model is improved. The radial support ring 41 of the wear-resistant ring 4 is used for bearing radial force when the worm wheel 2 rotates, and the axial support ring 42 is used for bearing axial force generated when the worm wheel 2 rotates to drive the seat to advance and retreat, so that stress is effectively dispersed, abrasion is reduced, and noise is reduced.
In this embodiment, the diameter of the outer circle of the limiting ring 43 is smaller than the diameter of the outer circle of the radial supporting ring 41.
By adopting the structure, the wear-resistant ring 4 can be conveniently installed, the limiting ring 43 can be conveniently matched with the screw rod, and the stability of the wear-resistant ring 4 is improved.
In this embodiment, the joint between the limiting ring 43 and the radial supporting ring 41 is beveled.
By adopting the structure, the wear-resistant ring 4 is attached to the reduction gearbox body 1, so that the installation firmness of the wear-resistant ring 4 is improved, and the reliability of the utility model is improved.
In this embodiment, the outer end surface of the limiting ring 43 is provided with open grooves 44 towards the axial direction thereof, and the open grooves 44 are provided with four openings in the axial direction of the limiting ring 43.
By adopting the structure, the screw rod can conveniently pass through the limiting ring 43, the cladding between the limiting ring 43 and the screw rod can be improved, and the stability of the screw rod is further improved; by providing the open groove 44, grease can be stored in the open groove 44, and the smoothness of the fit between the screw and the turbine and the retainer ring 43 can be further improved.
In this embodiment, the screw hole 13 passes through the fastening surfaces of the left case 11 and the right case 12, the radial supporting ring 41 is provided with a circumferential positioning portion 45, and the circumferential positioning portion 45 is clamped between the fastening surfaces of the left case 11 and the right case 12.
In the above structure, the circumferential positioning portion 45 is used for fixing the wear-resistant ring 4 circumferentially, preventing the wear-resistant ring 4 from rotating along with the worm wheel 2 when the worm wheel 2 rotates, so that the wear-resistant ring 4 and the reduction gearbox are kept in a fixed state, and noise generated when the wear-resistant ring 4 rotates relative to the reduction gearbox is reduced.
In this embodiment, the radial support ring 41, the axial support ring 42, the stop ring 43, and the circumferential positioning portion 45 are integrally provided.
By adopting the structure, the structural strength of the wear-resistant ring 4 can be improved, the wear-resistant ring 4 can be conveniently installed, and the reliability of the utility model is improved.
In this embodiment, tooth grooves 221 matched with the worm 3 are formed on the outer circumferential wall of the wheel body 22, and two ends of the tooth grooves 221 are located inside two ends of the wheel body 22.
In the above structure, the two ends of the tooth slot 221 are not provided with the through wheel 22, so that the two ends of the wheel 22 are smooth, and when the tooth slot is matched with the wear-resisting ring 4, a gasket is not required to be placed, thereby reducing the abrasion between the gasket and the wheel 22 and the generation of noise, improving the silencing effect of the utility model, reducing the installation of the gasket, and improving the convenience of the assembly of the utility model.
In this embodiment, the cross section of the tooth slot 221 is arc-shaped.
With the structure, the processing and the opening of the tooth slot 221 can be facilitated, so that the processing convenience of the utility model is improved.
In this embodiment, the openings of the tooth slots 221 are arranged in a flaring manner.
By adopting the structure, the worm wheel 2 and the worm 3 can be matched conveniently, so that the reliability of the utility model is improved.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (10)
1. The utility model provides a gearbox that stability is high, includes the gearbox body, is located the gearbox body the worm wheel and with worm gear drive complex worm, the gearbox body includes left box and right box, the screw has been seted up on the axial direction of worm wheel, set up the lead screw hole that sets up with the screw same axle on the gearbox body, its characterized in that: the worm wheel comprises a wheel body and wheel shoulders positioned at two ends of the wheel body, the outer circle diameter of the wheel shoulders is smaller than that of the wheel body, wear-resisting rings are sleeved on the wheel shoulders, each wear-resisting ring comprises a radial supporting ring supported between the outer cylinder wall of each wheel shoulder and the inner wall of each screw rod hole, an axial supporting ring supported between the wheel body and the inner wall of the reduction gearbox and a limiting ring arranged towards one side of each screw rod hole, and the limiting rings are positioned in the screw rod holes and coaxially arranged with the screw rod holes.
2. A high stability reduction gearbox according to claim 1, wherein: the diameter of the outer circle of the limiting ring is smaller than that of the radial supporting ring.
3. A high stability reduction gearbox according to claim 2, wherein: the joint of the limiting ring and the radial supporting ring is arranged in a beveling way.
4. A high stability reduction gearbox according to claim 1, wherein: the outer end face of the limiting ring is provided with an open slot towards the axial direction of the limiting ring.
5. The high stability reduction gearbox of claim 4, wherein: the open slot is provided with four openings relative to the axial direction of the limiting ring.
6. A high stability reduction gearbox according to claim 1, wherein: the screw rod hole passes through the buckling surfaces of the left box body and the right box body, the radial supporting ring is provided with a circumferential positioning part, and the circumferential positioning part is clamped between the buckling surfaces of the left box body and the right box body.
7. The high stability reduction gearbox of claim 6, wherein: the radial support ring, the axial support ring, the limiting ring and the circumferential positioning part are integrally arranged.
8. A high stability reduction gearbox according to claim 1, wherein: tooth grooves matched with the worm are formed in the outer circumferential wall of the wheel body, and two ends of each tooth groove are located at the inner sides of two ends of the wheel body.
9. The high stability reduction gearbox of claim 8, wherein: the section of the tooth groove is arc-shaped.
10. The high stability reduction gearbox of claim 9, wherein: the opening of the tooth slot is arranged in a flaring mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322108170.9U CN220505726U (en) | 2023-08-07 | 2023-08-07 | High reducing gear box of stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322108170.9U CN220505726U (en) | 2023-08-07 | 2023-08-07 | High reducing gear box of stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220505726U true CN220505726U (en) | 2024-02-20 |
Family
ID=89875405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322108170.9U Active CN220505726U (en) | 2023-08-07 | 2023-08-07 | High reducing gear box of stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220505726U (en) |
-
2023
- 2023-08-07 CN CN202322108170.9U patent/CN220505726U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |