CN212744889U

CN212744889U - Multi-lead worm gear speed reducer

Info

Publication number: CN212744889U
Application number: CN202021205415.XU
Authority: CN
Inventors: 陈勇
Original assignee: Autofast Technologies Co ltd
Current assignee: Autofast Technologies Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-03-19
Anticipated expiration: 2030-06-24

Abstract

The utility model relates to a lead into worm gear speed reducer more, including the casing, the casing is equipped with worm, worm wheel, and the worm is equipped with the spiral meshing strip, and the worm wheel is equipped with the tooth's socket, and the casing is equipped with adjusting device, and adjusting device is including adjusting collar, go-between, and the worm is equipped with twists the piece, and the go-between is equipped with the internal thread, and the go-between is equipped with the breach, and the go-between is equipped with locking bolt, and the go-between is equipped with the partition groove. By arranging the spiral meshing strip, when the tooth grooves of the worm wheel are abraded, personnel can adjust the position of the worm, so that the worm wheel and the worm can normally run without completely replacing the worm wheel and the worm; through setting up adjusting device, the personnel of being convenient for adjust the worm.

Description

Multi-lead worm gear speed reducer

Technical Field

The application relates to the technical field of speed reducers, in particular to a multi-lead worm and gear speed reducer.

Background

The reducer is an independent part consisting of gear transmission, worm transmission and gear-worm transmission enclosed in a rigid shell, and is commonly used as a speed reduction transmission device between a prime mover and a working machine. The function of matching the rotation speed and transmitting the torque between the prime mover and the working machine or the actuating mechanism is very extensive in modern machinery.

The Chinese utility model patent with the publication number of CN203823016U at present discloses a worm gear speed reducer, which comprises a box body, a worm wheel shaft and a worm, wherein the box body is provided with a power input hole and a through power output hole, the power input hole and the power output hole are respectively provided with a liquid sealing device, the worm is meshed with the worm wheel, the box body is detachably connected with an input flange at the power input hole, the outer wall of the box body is in a square shape at the mounting position of the worm wheel, and four corners of the square are fillets; the two ends of the power output hole communicated with the box body are respectively and detachably provided with an end cover, and the end cover on one side is provided with a protective cover.

In view of the above related technologies, the inventor believes that there is a defect that the worm wheel and the worm are worn by the meshing teeth of the worm and the worm after long-term use, and when the worm wheel is worn too much, the worm and the worm are meshed to be loosened or even not meshed, so that the whole transmission mechanism cannot be used normally and needs to be replaced completely.

Disclosure of Invention

In order to overcome the defect that the transmission mechanism cannot be normally used after the worm wheel is worn, the application provides a multi-lead worm and gear speed reducer.

The application provides a lead into worm gear speed reducer more adopts following technical scheme:

the utility model provides a lead into worm gear speed reducer more, includes the casing, the casing rotates and is equipped with worm, worm wheel, the outer pole wall of worm is equipped with spiral meshing strip, spiral meshing strip's width size is along its direction of convoluteing grow gradually, the worm wheel is equipped with and is used for the tooth's socket with spiral meshing strip meshing, the width of tooth's socket is greater than spiral meshing strip's minimum width, is less than spiral meshing strip's maximum width.

Through adopting above-mentioned technical scheme, produce wearing and tearing when one section spiral meshing strip of meshing and tooth's socket, lead to producing great space between the two, both can't closely mesh and make both when unable normal transmission, personnel can follow its axial displacement with the worm, rotate the worm simultaneously, the spiral meshing strip that makes the great department of width meshes in the tooth's socket, make spiral meshing strip offset with the tooth's socket cell wall, make the worm closely mesh with the worm wheel again, make the transmission can normally go on, need not to change worm gear is whole, the life of this speed reducer is longer.

Preferably, the casing is provided with an adjusting device used for axially moving the worm, the adjusting device comprises an adjusting sleeve and a connecting ring, the adjusting sleeve is connected with the casing in a sliding manner, the worm is rotationally connected with the adjusting sleeve and cannot axially move along the adjusting sleeve relative to the adjusting sleeve, the sliding direction of the adjusting sleeve is along the axial direction of the worm, and the connecting ring is used for fixedly connecting the adjusting sleeve with the casing.

Through adopting above-mentioned technical scheme, can dismantle the go-between and take out when personnel need carry out axial adjustment to the worm, remove the fixed connection of adjusting collar and casing, remove the adjusting collar again, rotate the axial position of worm adjustment worm simultaneously, make spiral meshing strip can offset with the tooth's socket, adorn the go-between back with the adjustment completion, make casing and adjusting collar fixed connection, need not personnel and unpack apart this speed reducer and adjust worm gear.

Preferably, a screwing piece which is convenient to screw by using a tool is fixedly arranged at the end part of the worm, and the screwing piece is positioned on one side of the adjusting sleeve, which is far away from the shell.

Through adopting above-mentioned technical scheme, the setting of twisting the piece is convenient for personnel to borrow the instrument and rotate the worm, makes the wider department of spiral meshing strip can rotate and get into in the tooth's socket.

Preferably, twist and change the piece and offset with the adjusting collar, the worm is equipped with the ladder groove, the cell wall in ladder groove deviates from with the adjusting collar and twists the surface of turning the piece and offset.

Through adopting above-mentioned technical scheme, the cell wall in ladder groove offsets with the surface that the adjusting collar deviates from to twist the piece, makes the mounted position to the worm fix a position, twists the piece and can carry on spacingly with the ladder groove cooperation to the position of adjusting collar on the worm, makes it difficult emergence skew.

Preferably, the worm is rotatably connected with the shell through an adjustable bearing which is arranged in the shell in a sliding mode, and the adjustable bearing is coaxial with the adjusting sleeve.

Through adopting above-mentioned technical scheme, the setting of adjustable bearing is convenient for personnel to adjust the position of worm along its axial, prescribes a limit to the axial of worm simultaneously, makes it the worm can the steady transmission.

Preferably, the connecting ring is sleeved on the adjusting sleeve, inner threads are arranged on the inner wall of the connecting ring, the connecting ring is in threaded connection with the adjusting sleeve, and the connecting ring is fixed with the shell through bolts.

By adopting the technical scheme, the connecting ring is fixedly connected with the adjusting sleeve in a threaded connection mode, the position of the connecting ring can be adjusted along the axial direction of the adjusting sleeve, and the adjusting sleeve after axial adjustment is fixedly connected with the shell through the connecting ring conveniently.

Preferably, the outer wall of the connecting ring is provided with a notch communicated with the inner wall of the connecting ring, the connecting ring is provided with a locking bolt, and the locking bolt penetrates through the inner wall of one side of the notch to be in threaded connection with the inner wall of the other side of the notch.

Through adopting above-mentioned technical scheme, the setting up of breach makes the go-between be changeed by the bending, makes its inner wall shrink, and the adjustable locking bolt of personnel makes the breach reduce, makes the inner wall shrink of go-between, makes it further sticiss fixedly to adjust the cover, makes the threaded connection of adjusting cover and go-between difficult not hard up.

Preferably, the connecting ring is provided with a separation groove, the length direction of the separation groove is along the circumferential direction of the connecting ring, the separation groove penetrates through the inner wall of the connecting ring, and the notch is communicated with the separation groove.

By adopting the technical scheme, the separation groove and the notch divide the connecting ring into thinner parts, so that the effect of pressing and deforming the locking bolt is better.

In summary, the present application includes at least one of the following beneficial technical effects:

by arranging the spiral meshing strip, when the tooth grooves of the worm wheel are abraded, personnel can adjust the position of the worm, so that the worm wheel and the worm can normally run without completely replacing the worm wheel and the worm;

by arranging the adjusting device, the worm is convenient for personnel to adjust;

through setting up breach, locking bolt, make adjustment mechanism and casing be connected more firm.

Drawings

Fig. 1 is a perspective view of the embodiment.

Fig. 2 is a sectional view of the embodiment.

Fig. 3 is an exploded view of the worm gear, worm, and adjustment device of the embodiment.

Description of reference numerals: 1. a housing; 11. an adjustable bearing; 2. a worm; 21. a helical engagement strip; 22. a stepped groove; 3. a worm gear; 31. a tooth socket; 4. an adjustment device; 41. an adjusting sleeve; 42. a connecting ring; 421. a notch; 422. locking the bolt; 423. a separation tank; 43. and (5) screwing the piece.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Referring to fig. 1 and 2, the multi-lead worm gear reducer comprises a shell 1, wherein the shell 1 is rotatably provided with a worm 2 and a worm wheel 3, and the worm wheel 3 and the worm 2 are positioned in the shell 1 and are both rotatably connected with the shell 1.

The outer rod wall of the worm 2 is provided with a spiral meshing strip 21, the width dimension of the spiral meshing strip 21 is gradually increased along the winding direction of the spiral meshing strip, the worm wheel 3 is provided with a tooth space 31 used for being meshed with the spiral meshing strip 21, the width of the tooth space 31 is larger than the minimum width of the spiral meshing strip 21 and smaller than the maximum width of the spiral meshing strip 21, when one section of the meshed spiral meshing strip 21 and the tooth space 31 are abraded to cause a larger gap to be generated between the two parts, so that the meshed spiral meshing strip 21 and the tooth space 31 cannot be tightly meshed to enable the two parts to be incapable of normally transmitting, a person can move the worm 2 along the axial direction of the worm 2 and simultaneously rotate the worm 2 to enable the spiral meshing strip 21 at the width position to be meshed into the tooth space 31, so that the spiral meshing strip 21 is abutted against the larger tooth space 31, the worm 2.

The worm 2 is rotatably connected with the shell 1 through an adjustable bearing 11 which is arranged in the shell 1 in a sliding mode, the adjustable bearing 11 is coaxial with the adjusting sleeve 41, the adjustable bearing 11 is coaxial with the worm 2, and the sliding direction of the adjustable bearing 11 is along the axial direction of the worm 2. The adjustable bearing 11 is arranged to facilitate the adjustment of the position of the worm 2 along the axial direction thereof by a person.

Referring to fig. 2 and 3, the housing 1 is provided with an adjusting device 4 for axially moving the worm 2, the adjusting device 4 includes an adjusting sleeve 41 and a connecting ring 42, the adjusting sleeve 41 is slidably connected with the housing 1, the sliding direction of the adjusting sleeve 41 is along the axial direction of the worm 2, the worm 2 is rotatably connected with the adjusting sleeve 41, a twisting member 43 abuts against the adjusting sleeve 41, the worm 2 is provided with a stepped groove 22, the groove wall of the stepped groove 22 abuts against the surface of the adjusting sleeve 41 departing from the twisting member 43, so as to position the installation position of the worm 2, the end of the worm 2 is fixedly provided with the twisting member 43 convenient for twisting with a tool, the twisting member 43 is positioned on the side of the adjusting sleeve 41 departing from the housing 1, the worm 43 is circular, the outer wall of the worm is provided with a plurality of twisting grooves for embedding the twisting tool, the plurality of the twisting grooves are uniformly distributed along the circumferential direction of the twisting member 43, the twisting member 43 is arranged to facilitate the person to rotate the worm 2 by using, allowing the wider portion of the helical engagement strip 21 to rotate into the gullet 31.

The connecting ring 42 is used for fixedly connecting the adjusting sleeve 41 with the shell 1, the connecting ring 42 is sleeved on the adjusting sleeve 41, inner threads are arranged on the inner wall of the connecting ring 42, the connecting ring 42 is in threaded connection with the adjusting sleeve 41, the connecting ring 42 is fixed with the shell 1 through bolts, the adjusting sleeve 41 is more stably connected with the shell 1 due to the arrangement of the connecting ring 42, when a person needs to axially adjust the worm 2, the bolts on the connecting ring 42 can be detached, the connecting ring 42 is rotated and taken out of the adjusting sleeve 41, the adjusting sleeve 41 is moved, the worm 2 is rotated to adjust the axial position of the worm 2, the connecting ring 42 is sleeved on the adjusting sleeve 41 again after adjustment is completed, the connecting ring 42 is fixedly connected with the adjusting sleeve 41, the connecting ring 42 is fixedly connected with the shell 1 through the bolts again, and the adjusted worm 2 is fixed.

The go-between 42 outer wall is equipped with the breach 421 that link up to self inner wall, breach 421 link up to the inner wall of go-between 42 along the radial of go-between 42, the go-between 42 is equipped with locking bolt 422, locking bolt 422 passes one side inner wall and the opposite side inner wall threaded connection of breach 421, the setting up of breach 421 makes go-between 42 change by the bending, make its inner wall shrink, the adjustable locking bolt 422 of personnel makes breach 421 minification, make the inner wall shrink of go-between 42, make it further sticis fixed to adjusting sleeve 41, make adjusting sleeve 41 and go-between 42's threaded connection difficult not hard up.

The connecting ring 42 is provided with a separation groove 423, the length direction of the separation groove 423 is along the circumferential direction of the connecting ring 42, the separation groove 423 penetrates through the inner wall of the connecting ring 42, the notch 421 is communicated to the middle of the separation groove 423, and the separation groove 423 and the notch 421 divide the connecting ring 42 into thinner parts, so that the effect of pressing and deforming the locking bolt 422 is better.

The implementation principle of the embodiment is as follows: when the worm 2 and the worm wheel 3 are worn, a person can take the connecting ring 42 out, push the adjusting sleeve 41 and simultaneously rotate the twisting piece 43 to rotate the worm 2, rotate the position with larger width of the spiral meshing strip 21 into the tooth groove 31 to be meshed and abutted with the groove wall of the tooth groove 31, so that the worm 2 and the worm wheel 3 can normally drive, and then the connecting ring 42 is installed again, the adjusting sleeve 41 is fixed on the shell 1, and the adjustment is completed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a lead into worm gear speed reducer more, includes casing (1), casing (1) rotates and is equipped with worm (2), worm wheel (3), its characterized in that: the outer pole wall of worm (2) is equipped with spiral meshing strip (21), the width size of spiral meshing strip (21) is crescent along its convolute direction, worm wheel (3) are equipped with and are used for tooth's socket (31) with spiral meshing strip (21) meshing, the width of tooth's socket (31) is greater than the minimum width of spiral meshing strip (21), is less than the maximum width of spiral meshing strip (21).

2. The multiple-lead worm and gear reducer as claimed in claim 1, wherein: casing (1) is equipped with and is used for adjusting device (4) to worm (2) axial displacement, adjusting device (4) are including adjusting sleeve (41), go-between (42), adjust sleeve (41) and casing (1) sliding connection, worm (2) rotate with adjusting sleeve (41) and be connected and unable relative adjusting sleeve (41) along self axial motion, the axial of worm (2) is followed to the slip direction of adjusting sleeve (41), go-between (42) are used for adjusting sleeve (41) and casing (1) fixed connection.

3. The multiple-lead worm and gear reducer as claimed in claim 2, wherein: the end part of the worm (2) is fixedly provided with a twisting piece (43) which is convenient to twist by using a tool, and the twisting piece (43) is positioned on one side of the adjusting sleeve (41) departing from the shell (1).

4. The multiple-lead worm and gear reducer as claimed in claim 3, wherein: twist and change piece (43) and adjusting collar (41) and offset, worm (2) are equipped with ladder groove (22), the cell wall of ladder groove (22) offsets with adjusting collar (41) deviating from the surface of twisting and changing piece (43).

5. The multiple-lead worm and gear reducer as claimed in claim 2, wherein: the worm (2) is rotatably connected with the shell (1) through an adjustable bearing (11) which is arranged in the shell (1) in a sliding mode, and the adjustable bearing (11) is coaxial with the adjusting sleeve (41).

6. The multiple-lead worm and gear reducer as claimed in claim 2, wherein: the connecting ring (42) is sleeved on the adjusting sleeve (41), inner threads are arranged on the inner wall of the connecting ring (42), the connecting ring (42) is in threaded connection with the adjusting sleeve (41), and the connecting ring (42) is fixed with the shell (1) through bolts.

7. The multiple-lead worm and gear reducer as recited in claim 6, wherein: the outer wall of the connecting ring (42) is provided with a notch (421) penetrating through the inner wall of the connecting ring, the connecting ring (42) is provided with a locking bolt (422), and the locking bolt (422) penetrates through the inner wall of one side of the notch (421) to be in threaded connection with the inner wall of the other side.

8. The multiple lead worm gear reducer according to claim 7, wherein: the connecting ring (42) is provided with a separation groove (423), the length direction of the separation groove (423) is along the circumferential direction of the connecting ring (42), the separation groove (423) penetrates through the inner wall of the connecting ring (42), and the notch (421) is communicated with the separation groove (423).