CN217355495U

CN217355495U - Worm gear speed reducer with reverse self-locking function

Info

Publication number: CN217355495U
Application number: CN202220894200.6U
Authority: CN
Inventors: 高德宝; 高蓉
Original assignee: Hangzhou Hengbai Reducer Co ltd
Current assignee: Hangzhou Hengbai Reducer Co ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-09-02
Anticipated expiration: 2032-04-18

Abstract

The utility model discloses a worm gear speed reducer with reverse self-locking function, including the reducer housing, upper portion is equipped with double-layered chamber in the reducer housing, the worm has been erect on reducer housing upper portion, worm one end is located double-layered intracavity, the output shaft has been erect to reducer housing lower part, be fixed with the worm wheel on the output shaft, the worm right part is equipped with logical chamber, the oil outlet that a plurality of intercommunications led to the chamber is seted up along spiral tooth's socket to the worm, the worm right-hand member is equipped with the standing groove, it has the connector to press from both sides the intracavity and be fixed with, the connector left end is located the standing groove, and right-hand member connection oil pipe is terminal, reducer housing bottom is equipped with the oil-out and installs out oil pipe, go out the oil feed end of oil pipe other end connection circulating pump, oil pipe is connected to the oil outlet end of circulating pump. Has the advantages that: during transmission work, lubricating oil is sprayed to the meshing position with the worm wheel from the worm spiral tooth groove through the oil outlet, so that the meshing position of the meshing gear teeth can be fully lubricated and cooled at every time, and the lubricating and cooling effects are good.

Description

Worm gear speed reducer with reverse self-locking function

Technical Field

The utility model belongs to the technical field of the worm gear speed reducer machine, concretely relates to worm gear speed reducer machine with reverse self-locking function.

Background

The worm gear speed reducer is widely applied due to the characteristic of large reduction ratio. However, the worm gear speed reducer has the characteristic of self-locking, and when the lead angle of the worm is smaller than the equivalent friction angle between the teeth of the meshing wheel, the worm gear is self-locked.

Because this kind of auto-lock speed reducer is applied to the heavy load field in a large number, the meshing teeth running-in atress of worm and worm wheel is big to need fully lubricated to meshing teeth of a cogwheel running-in department, but present lubrication is insufficient, and the speed reducer life-span is short.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a worm gear speed reducer with reverse self-locking function to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a worm gear speed reducer with reverse self-locking function comprises a speed reducer shell, wherein a clamping cavity is arranged at the upper part in the speed reducer shell, a transversely-placed rotatable worm is arranged at the upper part of the speed reducer shell through a bearing frame, one end of the worm is positioned outside the speed reducer shell, the other end of the worm is positioned in the clamping cavity, an output shaft which is perpendicular to the worm direction and rotatable is erected at the lower part of the speed reducer shell, a worm wheel meshed with the worm is fixed on the output shaft, a through cavity which penetrates through the right end is formed at the right part of the worm along a central shaft, a plurality of oil outlet holes which are communicated with the through cavity are formed in the worm along the circumferential direction of a spiral tooth groove, a placing groove is formed at the right end of the worm, a connector is fixed in the clamping cavity through a fixing support, the left end of the connector is positioned in the placing groove, the right end of the connector is in threaded connection with an oil pipe, and the inner cavities of the connector and the oil pipe are communicated with the through cavity, the speed reducer is characterized in that an oil outlet is formed in the bottom of the speed reducer shell, an oil outlet pipe is installed at the bottom of the speed reducer shell, the other end of the oil outlet pipe is connected with the oil inlet end of a circulating pump, and the oil outlet end of the circulating pump is connected with the oil pipe.

Preferably, a vent cap is arranged at the top of the speed reducer shell.

Preferably, the bottom of the speed reducer shell is supported by support legs, and shock pads are fixed at the bottoms of the support legs.

Preferably, the bottom of the clamping cavity is provided with a plurality of through holes.

Preferably, the placing groove is provided with a first annular groove with a semicircular section along the inner wall, the connector is provided with a second annular groove corresponding to the first annular groove, and the first annular groove is internally provided with an elastic sealing ring.

Preferably, the connector is closely attached to the inner wall of the placing groove.

Preferably, the oil pipe is made of aluminum materials easy to dissipate heat.

Preferably, a filter screen is mounted on an oil outlet at the bottom of the speed reducer shell.

Compared with the prior art, the beneficial effects of the utility model are that:

1. during transmission work, lubricating oil is sprayed to the meshing position with the worm wheel from the worm spiral tooth groove through the oil outlet, so that the meshing position of the meshing gear teeth can be fully lubricated and cooled at every time, and the lubricating and cooling effects are good.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic view of the partial cross-sectional structure of the present invention.

In the figure: 1. a speed reducer housing; 2. a clamp cavity; 3. a bearing; 4. a worm; 5. an output shaft; 6. a worm gear; 7. a cavity is communicated; 8. an oil outlet hole; 9. a placement groove; 10. fixing a bracket; 11. a connector; 12. an oil pipe; 13. an oil outlet pipe; 14. a circulation pump; 15. a ventilation cap; 16. supporting legs; 17. a shock pad; 18. A through hole; 19. a first ring groove; 20. a second ring groove; 21. an elastic sealing ring; 22. and (4) a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-2, the present invention provides a technical solution: a worm gear speed reducer with a reverse self-locking function comprises a speed reducer shell 1, wherein a clamping cavity 2 is arranged at the upper part in the speed reducer shell 1, so that a worm 4 and an oil pipe 12 are conveniently connected through a connector 11 in the clamping cavity 2; the upper part of the speed reducer shell 1 is provided with a transversely-placed rotatable worm 4 through a bearing 3, one end of the worm 4 is positioned outside the speed reducer shell 1, the other end of the worm 4 is positioned in the clamping cavity 2, the lower part of the speed reducer shell 1 is provided with an output shaft 5 which is vertical to the direction of the worm 4 and can rotate, and a worm wheel 6 meshed with the worm 4 is fixed on the output shaft 5; the right part of the worm 4 is provided with a through cavity 7 penetrating through the right end along a central shaft, the worm 4 is provided with a plurality of oil outlet holes 8 communicated with the through cavity 7 along the circumferential direction of a spiral tooth groove, the right end of the worm 4 is provided with a placing groove 9, a connector 11 is fixed in the clamping cavity 2 through a fixing support 10, the left end of the connector 11 is positioned in the placing groove 9, the right end of the connector 11 is in threaded connection with the tail end of an oil pipe 12, the connector 11 and the inner cavity of the oil pipe 12 are communicated with the through cavity 7, so that the connector 11 can be movably connected with the worm 4 through the placing groove 9, and the connector 11 is not interfered when the worm 4 rotates; 1 bottom of speed reducer casing is equipped with the oil-out and installs out oil pipe 13, go out the oil inlet end that circulating pump 14 is connected to the oil pipe 13 other end, the end that goes out oil of circulating pump 14 is connected oil pipe 12 to start circulating pump 14 can take out lubricating oil in speed reducer casing 1 through going out oil pipe 13, then through oil pipe 12 with lubricating oil through the connector 11 entering logical chamber 7, then spout from 4 spiral tooth's grooves of worm through oil outlet 8, spray to the meshing department with worm wheel 6, thereby can be to meshing teeth of a cogwheel running-in department fully lubricated and cooling at every turn, lubricated cooling effect is good, and lubricating oil continues to recycle behind the inflow 1 bottom of speed reducer casing.

Specifically, a vent cap 15 is arranged at the top of the speed reducer shell 1; in the present embodiment, the air pressure inside and outside the reduction gear case 1 can be balanced.

Specifically, the bottom of the speed reducer shell 1 is supported by support legs 16, and shock absorbing pads 17 are fixed at the bottoms of the support legs 16; in this embodiment, the vibration of the speed reducer during operation can be effectively reduced by the shock absorption pad 17.

Specifically, the bottom of the clamping cavity 2 is provided with a plurality of through holes 18; in this embodiment, the air pressure balance between the balance clamping cavity 2 and the inner cavity of the speed reducer shell 1 is facilitated.

Specifically, a first annular groove 19 with a semicircular section is formed in the placing groove 9 along one circle of the inner wall, a second annular groove 20 corresponding to the first annular groove 19 is formed in the connecting head 11, and elastic sealing rings 21 are arranged in the first annular groove 19 and the second annular groove 20; in this embodiment, when the worm 4 rotates, the joint 11 and the worm 4 are not easy to leak.

Specifically, the connector 11 is closely attached to the inner wall of the placing groove 9; in the present embodiment, the sealing performance at the joint of the connecting head 11 and the worm 4 is improved.

Specifically, the oil pipe 12 is made of aluminum material which is easy to dissipate heat; in this embodiment, when can improve lubricating oil and lead to chamber 7 through oil pipe 12 suction, effective heat dissipation cooling to can fully lubricate and cool down meshing teeth of a cogwheel running-in department.

Specifically, a filter screen 22 is arranged on an oil outlet at the bottom of the speed reducer shell 1; in the present embodiment, the lubricating oil can thus be filtered, preventing the dregs from entering the circulation pump 14.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

The working principle is as follows: when the transmission device is used, enough lubricating oil is added at the bottom of the speed reducer shell 1, the input end of the worm 4 is connected with an external drive to rotate, and then the worm wheel 6 is driven to rotate in a meshed mode, the output shaft 5 is further driven to rotate, and the external connection device is driven to work; during the period, the circulating pump 14 is started, lubricating oil in the speed reducer shell 1 is pumped out through the oil outlet pipe 13, then the lubricating oil enters the through cavity 7 through the connector 11 through the oil pipe 12, and then is sprayed out from the spiral tooth groove of the worm 4 through the oil outlet hole 8 to the meshing position with the worm wheel 6, so that the meshing gear tooth running-in position can be fully lubricated and cooled at each time, the lubricating and cooling effects are good, and the lubricating oil is continuously recycled after flowing into the bottom of the speed reducer shell 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The worm and gear speed reducer with the reverse self-locking function is characterized by comprising a speed reducer shell (1), wherein a clamping cavity (2) is arranged at the inner upper part of the speed reducer shell (1), a transversely-arranged rotatable worm (4) is mounted at the upper part of the speed reducer shell (1) through a bearing (3), one end of the worm (4) is positioned outside the speed reducer shell (1), the other end of the worm is positioned in the clamping cavity (2), an output shaft (5) which is vertical to the worm (4) in direction and can rotate is erected at the lower part of the speed reducer shell (1), a worm wheel (6) meshed with the worm (4) is fixed on the output shaft (5), a through cavity (7) with the right end communicated is formed in the right part of the worm (4) along a central shaft, and a plurality of oil outlet holes (8) communicated with the through cavity (7) are formed in the worm (4) along the circumferential direction of a spiral tooth groove, standing groove (9) have been seted up to worm (4) right-hand member, be fixed with connector (11) through fixed bolster (10) in pressing from both sides chamber (2), connector (11) left end is located in standing groove (9), and right-hand member threaded connection oil pipe (12) are terminal, connector (11) and the inner chamber of oil pipe (12) with lead to chamber (7) intercommunication, speed reducer casing (1) bottom is equipped with the oil-out and installs out oil pipe (13), the oil feed end of circulating pump (14) is connected to play oil pipe (13) other end, the end that produces oil of circulating pump (14) is connected oil pipe (12).

2. The worm and gear speed reducer with the reverse self-locking function as claimed in claim 1, characterized in that a ventilation cap (15) is arranged on the top of the speed reducer housing (1).

3. The worm and gear speed reducer with the reverse self-locking function according to claim 1, wherein the bottom of the speed reducer casing (1) is supported by support legs (16), and shock pads (17) are fixed at the bottoms of the support legs (16).

4. The worm and gear speed reducer with the reverse self-locking function as claimed in claim 1, wherein the bottom of the clamping cavity (2) is provided with a plurality of through holes (18).

5. The worm-gear speed reducer with the reverse self-locking function according to claim 1, wherein the placing groove (9) is provided with a first ring groove (19) with a semicircular cross section along the inner wall in a circle, the connecting head (11) is provided with a second ring groove (20) corresponding to the first ring groove (19), and the first ring groove (19) and the second ring groove (20) are internally provided with elastic sealing rings (21).

6. The worm and gear speed reducer with the reverse self-locking function as claimed in claim 1, wherein the connector (11) is tightly attached to the inner wall of the placing groove (9).

7. The worm-gear speed reducer with the reverse self-locking function as claimed in claim 1, wherein the oil pipe (12) is made of aluminum which is easy to dissipate heat.

8. The worm and gear speed reducer with the reverse self-locking function as claimed in claim 1, wherein a filter screen (22) is mounted on an oil outlet at the bottom of the speed reducer housing (1).