CN218718520U - Speed reducer with side-mounted taper worm pair - Google Patents

Abstract

The utility model provides a speed reducer is put to vice side of tapering worm belongs to transmission machinery technical field. This speed reducer is put to tapering worm vice side, including box, input shaft and output shaft set up in the box and outside both spindle noses stretch out the box, have the awl worm of integral type structure on the input shaft, have the awl worm wheel of integral type structure on the output shaft, the awl worm with the transmission is realized to the awl worm wheel intermeshing in the box, the awl worm is along the past setting of awl worm wheel flank of tooth edge, be located the rear of input shaft in the box and seted up a bearing groove, bearing inslot clearance fit has a bearing, have on the input shaft and lean on the spacing step that leans on with a bearing, the bottom surface of a bearing groove is provided with a bearing another side and leans on a gasket. The utility model has the advantages of the transmission efficiency is higher, not fragile when bearing big moment of torsion, and life is longer.

Description

Speed reducer with side-mounted taper worm pair

Technical Field

The utility model belongs to the technical field of transmission machinery, a speed reducer is related to, in particular to speed reducer is put to vice side of tapering worm.

Background

The retarder is usually used as a reduction gear between the prime mover and the working machine, acting to match the rotational speed and transmit torque between the prime mover and the working machine or actuator. Most of the conventional speed reducers at present adopt a worm and gear structure, but have the problem that the large torque cannot be transmitted due to small meshing area, so that the conventional speed reducers are generally replaced by conical worm matched with tooth surface transmission, but the problem of non-tight matching transmission and non-uniform stress is easy to occur.

In the prior art, as disclosed in patent No. 202111572118.8, a bevel worm and worm gear transmission mechanism with load balancing function is mainly characterized in that a spring is added in the axial direction of a bevel worm gear to serve as a constant axial thrust, so that the inter-tooth meshing force of the bevel worm and worm gear is uniform, and the mechanism runs stably, and experiments show that the structure has the following problems: because the bevel worm wheel is supported by the elastic force of the spring, the mechanism can play a certain role under the condition of low speed and low torque, but when the rotating speed is increased or the load resistance is larger, the bevel worm wheel can reversely extrude the spring, so that the fit clearance is increased, and the transmission is more unstable.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide one kind and make things convenient for axial adjustment awl worm to reach the vice side of tapering worm that the mating surface closely cooperates and put the speed reducer.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a speed reducer is put to tapering worm vice side, includes box, input shaft and output shaft set up in the box and outside shaft head between them stretches out the box, the input shaft on have the awl worm of integral type structure, the output shaft on have the awl worm wheel of integral type structure, the awl worm with awl worm wheel intermeshing realize the transmission in the box, the awl worm along awl worm wheel flank edge toward setting up, the box in be located the rear of input shaft and seted up a bearing groove, a bearing groove clearance fit have a bearing, the input shaft on have the spacing step that supports with a bearing and support, the bottom surface of a bearing groove is provided with a gasket that the bearing another side supported and support.

In the side-mounted speed reducer with the taper worm pair, a second bearing groove opposite to the first bearing groove is formed in the box body, a second bearing and a second gasket are arranged in the second bearing groove in an interference fit mode, and the front end of the input shaft is supported through the second bearing.

In the speed reducer with the side-mounted taper worm pair, cover plates are fixed on the outer sides of the first bearing groove and the second bearing groove on the box body through screws.

In the side speed reducer with the taper worm pair, the bottom surface of the box body is provided with a third bearing groove which is of an integrated structure with the box body, and the bottom of the output shaft is supported by a bearing in the third bearing groove.

In the speed reducer with the side-mounted taper worm pair, an end cover is fixed at the top of the box body through a screw, a fourth bearing groove which is of an integral structure with the end cover is formed in the end cover, and the top of the output shaft is supported through a bearing in the fourth bearing groove and penetrates through the end cover.

In the side-mounted speed reducer with the taper worm gear pair, the tooth form of the taper worm gear is arc tooth.

In the speed reducer with the side-mounted taper worm pair, lubricating oil is filled in the box body, and the outer wall of the box body is provided with heat dissipation teeth.

Compared with the prior art, the side speed reducer of the taper worm pair can adjust the installation position of the taper worm by changing the thickness of the first gasket, so that the taper worm is better meshed with the tooth surface of the taper worm wheel, the stress of the meshed part is uniform, the transmission efficiency is higher, the side speed reducer is not easy to damage when bearing large torque, and the service life is longer.

Drawings

FIG. 1 is a schematic structural diagram of the speed reducer;

FIG. 2 is a schematic view of the internal structure of the reducer;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a cross-sectional view of the present reducer;

FIG. 5 is a schematic structural view of a spiroid worm;

in the figure, 1, a box body; 2. an input shaft; 3. an output shaft; 4. a conical worm; 5. a bevel worm gear; 6. a first bearing groove; 7. a first bearing; 8. a limiting step; 9. a first gasket; 10. a second bearing groove; 11. a second bearing; 12. a second gasket; 13. a cover plate; 14. a third bearing groove; 15. an end cap; 16. a bearing groove No. four; 17. and (4) heat dissipation teeth.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 5, the speed reducer with the taper worm gear pair arranged laterally comprises a box body 1, an input shaft 2 and an output shaft 3, wherein the input shaft 2 and the output shaft 3 are arranged in the box body 1, shaft heads of the input shaft 2 and the output shaft 3 extend out of the box body 1, namely, the input shaft 2 is connected with a power machine to achieve torque input, the output shaft 3 is connected with a load to output torque, the input shaft 2 is provided with a taper worm 4 with an integrated structure, the taper worm 4 is directly arranged at the middle section of the input shaft 2, the output shaft 3 is provided with a taper worm gear 5 with an integrated structure, the taper worm gear 5 is in a disc shape and is arranged at the bottom position of the output shaft 3, gear teeth of the taper worm gear 5 are arranged on the upper end face of the taper worm gear 5, the taper worm 4 and the taper worm gear 5 are meshed with each other in the box body 1 to achieve transmission, and the transmission mode is unidirectional transmission and can only transmit torque to the taper worm 5 through the taper worm 4.

Awl worm 4 sets up along 5 flank of tooth edges of awl worm wheel inwards, through the transmission of the spiral profile of tooth meshing on the awl worm 4, bearing groove 6 has been seted up No. one at the rear that lies in input shaft 2 in the box 1, clearance fit has bearing 7 No. one in the bearing groove 6, the width of bearing groove 6 is greater than the width of bearing 7 promptly, have the spacing step 8 that leans on with bearing 7 on the input shaft 2, the inner circle outer wall and the spacing step 8 of bearing 7 counterbalance lean on, the bottom surface of bearing groove 6 is provided with a gasket 9 that the another side of bearing 7 leaned on.

The technical effect of this speed reducer does: can change the position of a bearing 7 through the thickness of adjusting a gasket 9, the position of input shaft 2 is adjusted to the cooperation of supporting of a rethread bearing 7 and input shaft 2 for the awl worm 4 on the input shaft 2 is better with the cooperation of awl worm wheel 5, thereby reaches the effect that the tooth of a cogwheel meshing face closely cooperates, and the transmission of speed reducer is more stable, and this structure is more convenient when adjusting.

Further, a second bearing groove 10 opposite to the first bearing groove 6 is formed in the box body 1, a second bearing 11 and a second gasket 12 are in interference fit in the second bearing groove 10, and the front end of the input shaft 2 is supported through the second bearing 11.

Bearing groove 10 No. two mainly used bearing 11's installation and to the front end of input shaft 2 realize one and support the pressure effect, no. two gasket 12 mainly used adjust the position of No. two bearing 11, this structure is the same basically with the structure that bearing 7 installed in bearing groove 6 No. one, the difference lies in no clearance between No. two bearing 11 and No. two bearing groove 10, through confirming earlier the thickness of a gasket 9 with the back of putting the position control of awl worm 4 in place, confirm the thickness of No. two gaskets 12 again, prevent that input shaft 2 from taking place axial translation.

In order to make the bearing more convenient to disassemble and assemble, cover plates 13 are fixed on the outer sides of the first bearing groove 6 and the second bearing groove 10 on the box body 1 through screws, and because the box body 1 is integrally formed, if the cover plates 13 are not arranged, the installation of the two bearings and the input shaft 2 is very inconvenient.

No. three bearing grooves 14 of structure as an organic whole rather than offered to the bottom surface of box 1, the bearing support in No. three bearing grooves 14 is passed through to the bottom of output shaft 3, and this structure mainly used fixes output shaft 3.

An end cover 15 is fixed at the top of the box body 1 through screws, a fourth bearing groove 16 of an integrated structure is formed in the end cover 15, and the top of the output shaft 3 is supported through a bearing in the fourth bearing groove 16 and penetrates through the end cover 15.

The integral type structural design of No. four bearing grooves 16 and end cover 15 makes production convenient and fast more to end cover 15's area is great, is greater than the area of awl worm wheel 5, can realize the installation of awl worm wheel 5 in box 1, and wherein the profile of tooth of awl worm wheel 5 is the curved tooth, and the both sides thickness of curved tooth is different, is called high limit and low limit promptly, and the thickness on the high limit of curved tooth mating surface is greater than the thickness on the low limit of opposite side curved tooth mating surface during wherein forward drive.

In order to increase the heat dissipation of the speed reducer during high-speed operation, lubricating oil is filled in the box body 1, and the outer wall of the box body 1 is provided with heat dissipation teeth 17.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although various terms are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (7)

1. The utility model provides a speed reducer is put to tapering worm vice side, includes box (1), input shaft (2) and output shaft (3) set up in box (1) and outside box (1) is stretched out to spindle nose between them, input shaft (2) on have awl worm (4) of integral type structure, output shaft (3) on have awl worm wheel (5) of integral type structure, awl worm (4) with awl worm wheel (5) intermeshing in box (1) realize the transmission, its characterized in that, awl worm (4) along awl worm wheel (5) flank edge inwards set up, box (1) in be located the rear of input shaft (2) and seted up a bearing groove (6), bearing groove (6) interior clearance fit have a bearing (7), input shaft (2) on have with a bearing (7) support spacing step (8) that support and lean on, the bottom surface of a bearing groove (6) is provided with a gasket (9) and supports and lean on another side of bearing (7).

2. The side-mounted speed reducer of the taper worm gear pair according to claim 1, wherein a second bearing groove (10) opposite to the first bearing groove (6) is formed in the box body (1), a second bearing (11) and a second gasket (12) are arranged in the second bearing groove (10) in an interference fit manner, and the front end of the input shaft (2) is supported through the second bearing (11).

3. The side reduction gear of the taper worm pair as claimed in claim 2, wherein a cover plate (13) is fixed on the outer side of the first bearing groove (6) and the outer side of the second bearing groove (10) on the box body (1) through screws.

4. The side reduction gear of the taper worm pair as claimed in claim 1, wherein the bottom surface of the box body (1) is provided with a third bearing groove (14) which is of an integral structure with the box body, and the bottom of the output shaft (3) is supported by a bearing in the third bearing groove (14).

5. The side reduction gear of the taper worm gear pair according to claim 1 or 4, wherein an end cover (15) is fixed at the top of the box body (1) through a screw, a fourth bearing groove (16) which is integrated with the end cover (15) is formed in the end cover (15), and the top of the output shaft (3) is supported through a bearing in the fourth bearing groove (16) and penetrates through the end cover (15).

6. The side reduction gear of the taper worm pair as claimed in claim 1, wherein the tooth shape of the bevel worm wheel (5) is arc tooth.

7. The side reduction gear of the taper worm pair as claimed in claim 1, wherein the inside of the box body (1) is filled with lubricating oil, and the outer wall of the box body (1) is provided with heat dissipation teeth (17).

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