CN216895694U

CN216895694U - Helical gear speed reducer

Info

Publication number: CN216895694U
Application number: CN202220706983.0U
Authority: CN
Inventors: 袁国峰
Original assignee: Hangzhou Hongya Transmission Equipment Co ltd
Current assignee: Hangzhou Hongya Transmission Equipment Co ltd
Priority date: 2022-03-28
Filing date: 2022-03-28
Publication date: 2022-07-05
Anticipated expiration: 2032-03-28

Abstract

The utility model provides a helical gear speed reducer, which comprises a casing with an inner chamber, wherein an oil outlet hole is formed in the bottom surface of the inner chamber, an oil pushing plate for pushing lubricating oil to the oil outlet hole is arranged at the bottom of the inner chamber in a sliding manner, a shaft penetrating hole communicated with the inner chamber is formed in the outer side wall of the casing, a driving mechanism for driving the oil pushing plate to do reciprocating sliding movement at the bottom of the inner chamber is arranged in the inner chamber, the driving mechanism comprises a plurality of bearing seats arranged on the side wall of the inner chamber, a lead screw rotatably arranged between the two bearing seats and penetrating through the shaft penetrating hole, a nut slidably arranged on the lead screw and connected with the oil pushing plate, and a driving motor for driving the lead screw to rotate. The helical gear speed reducer is provided with the oil pushing plate in the bottom of the inner chamber in a sliding manner and the driving mechanism for driving the oil pushing plate to reciprocate, and the lubricating oil deposited at the bottom of the inner chamber is cleaned by the oil pushing plate and the driving mechanism, so that the cleaning is convenient.

Description

Helical gear speed reducer

Technical Field

The utility model relates to the technical field of speed reducers, in particular to a helical gear speed reducer.

Background

The speed reducer is an independent part consisting of gear transmission, worm transmission and gear-worm transmission which are enclosed in a rigid shell, is commonly used as a speed reduction transmission device between a prime mover and a working machine, and is widely applied to modern machinery. The speed reducer is generally used for low-speed and high-torque transmission equipment, and the purpose of reducing speed is achieved by meshing a small gear on an input shaft of the speed reducer with a large gear on an output shaft of a motor, an internal combustion engine or other high-speed running power.

The existing helical gear speed reducer mainly comprises a shell and a multi-stage gear shaft, wherein the shell is arranged in a split mode and is internally provided with an inner chamber, the multi-stage continuously meshed gear shaft is installed in the inner chamber of the shell, and an oil filling hole communicated with the inner chamber is formed in the top surface of the shell. During operation, the workman instils into lubricating oil to the gear shaft in the inner room through the oiling hole at casing top, reduces the wearing and tearing of gear shaft. However, after the speed reducer is used for a long time, lubricating oil can be deposited at the bottom of the inner chamber, the shell needs to be opened, and the lubricating oil at the bottom of the inner chamber needs to be cleaned, so that the cleaning is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the prior art is insufficient, and provides a helical gear speed reducer which solves the problem that the prior art is inconvenient to clean.

The above object of the present invention can be achieved by the following technical solutions: the utility model provides a helical gear speed reducer, is including the casing that has the inner room, the oil outlet has been seted up on the bottom surface of inner room, the bottom of inner room slides and is provided with the oil board that pushes away that pushes to the oil outlet with lubricating oil, set up the axle hole of wearing with the inner room intercommunication on the lateral wall of casing, be provided with the drive in the inner room and push away the actuating mechanism that the oil board was reciprocating sliding motion in the inner room bottom, actuating mechanism sets up on the lead screw and with pushing away nut, drive lead screw pivoted driving motor that the axle hole just passed between two bearing frames including setting up a plurality of bearing frames on the inner room lateral wall, rotation, and the slip sets up on the lead screw and links to each other with the oil board.

The utility model is further configured to: the nut comprises a main body in inserting fit with the mounting hole and a flange plate arranged on the end face of the main body and connected with the side wall of the oil pushing plate.

The utility model is further configured to: the bottom surface of the oil pushing plate is provided with a row brush.

The utility model is further configured to: the side wall of the inner chamber, which is close to the bearing seat, is provided with a plurality of connecting holes, the end face of the bearing seat, which faces the connecting holes, is provided with a connecting screw rod which penetrates through the connecting holes, and the connecting screw rod is in threaded connection with a locking nut after penetrating through the connecting holes.

The utility model is further configured to: a sealing gasket is arranged between the bearing seat and the side wall of the inner chamber, and a through hole for the connecting screw rod to pass through is formed in the sealing gasket.

The utility model is further configured to: the oil outlet device is characterized in that a movable groove is formed in the outer side wall of the casing, an oil outlet hopper communicated with the oil outlet hole is arranged in the movable groove, an oil outlet pipe communicated with the oil outlet hopper is arranged below the oil outlet hopper, and a hand wheel ball valve for controlling the on-off of the oil outlet pipe is arranged on the oil outlet pipe.

The utility model is further configured to: the outer side wall of the shell is provided with a through hole communicated with the movable groove, and a hand wheel of the hand wheel ball valve penetrates through the through hole.

The utility model is further configured to: an oil receiving box is arranged in the movable groove in a sliding mode, and an oil receiving groove is formed in the top face of the oil receiving box.

The utility model is further configured to: all set up the one-level dead eye, the second grade dead eye that arrange in proper order and all communicate with the inner room on the wall of casing both sides mutually back on the body, be provided with on the lateral wall of casing with one-level dead eye confined one-level end cover, with second grade dead eye confined second grade end cover, it is adjacent rotate between the one-level end cover and be provided with the gear input shaft that the tip passed one of them one-level end cover in order to stretch out the inner room, be provided with the one-level pinion on the outer periphery of gear input shaft, it is adjacent rotate between the second grade end cover and be provided with the output shaft that the tip passed one of them second grade end cover in order to stretch out the inner room, coaxial second grade gear wheel with one-level pinion engagement that is provided with on the output shaft.

The utility model is further configured to: and a primary bearing sleeved on the gear input shaft is arranged in each primary bearing hole, and a secondary bearing sleeved on the output shaft is arranged in each secondary bearing hole.

In conclusion, the beneficial technical effects of the utility model are as follows: this helical gear speed reducer slides at the bottom of inner chamber and sets up and push away the actuating mechanism that the oiled plate and drive pushed away the oiled plate and do reciprocating motion, utilizes to push away oiled plate and actuating mechanism and clears up the sedimentary lubricating oil of inner chamber bottom, and the clearance is comparatively convenient.

Drawings

FIG. 1 is a schematic structural diagram of a helical gear reducer according to the present invention;

FIG. 2 is a sectional view of a helical gear reducer according to the present invention;

FIG. 3 is a schematic diagram of a half-section structure of the helical gear reducer of the present invention;

FIG. 4 is a sectional view of a helical gear reducer according to the present invention;

fig. 5 is a schematic structural view of the oil pushing plate and the driving mechanism in the present invention.

In the above drawings: 1. a housing; 11. a lower housing; 12. an upper housing; 2. an inner chamber; 3. a first-stage shaft hole is arranged; 4. installing a shaft hole in a secondary mode; 5. a primary end cover; 6. a gear input shaft; 61. a primary pinion gear; 7. a primary bearing; 8. a secondary end cap; 9. an output shaft; 10. a secondary bull gear; 13. a secondary bearing; 14. an oil filler hole; 15. an oil filling plug; 16. a movable groove; 17. a through hole; 18. an oil outlet hole; 19. an oil outlet hopper; 20. an oil outlet pipe; 21. a handwheel ball valve; 22. an oil receiving box; 221. a handle; 23. an oil receiving groove; 24. an oil pushing plate; 25. mounting holes; 26. arranging brushes; 27. connecting holes; 28. a shaft hole is penetrated; 29. a bearing seat; 30. connecting a screw rod; 31. locking the nut; 32. a gasket; 33. perforating; 34. a lead screw; 35. a drive motor; 36. a nut; 361. a main body; 362. and (4) a flange plate.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the utility model clearer and easier to understand, the utility model is further explained in the following with the accompanying drawings and the detailed description.

As shown in fig. 1 and 2, the present invention provides a helical gear speed reducer, which includes a housing 1, wherein the housing 1 includes a lower housing 11 and an upper housing 12 screwed to the lower housing 11, and an inner chamber 2 is formed inside the housing 1. All seted up one-level dress shaft hole 3 on the both sides wall that casing 1 carried on the back mutually, second grade dress shaft hole 4, one-level dress shaft hole 3 and second grade dress shaft hole 4 all communicate with inner chamber 2, and one-level dress shaft hole 3, second grade dress shaft hole 4 arrange along the transmission direction of speed reducer in proper order, and one-level dress shaft hole 3 and second grade dress shaft hole 4 are the circular port, and one-level dress shaft hole 3 and second grade dress shaft hole 4 are located down on casing 11 and the last casing 12 to half-opening.

As shown in fig. 1 and 2, two opposite side walls of the casing 1 are respectively connected with a first-stage end cover 5 by screws, the first-stage end cover 5 is in scarf joint with the first-stage shaft-installing hole 3, and the first-stage end cover 5 seals an opening of the first-stage shaft-installing hole 3. A gear input shaft 6 is rotatably arranged between the two primary end covers 5, one end part of the gear input shaft 6 penetrates through the primary end cover 5 to extend out of the inner chamber 2, and a primary pinion 61 is arranged in the middle of the outer circumferential surface of the gear input shaft 6. All inlay in every one-level dress shaft hole 3 and be equipped with one-level bearing 7, two one-level bearings 7 suit respectively on the step axle at gear input shaft 6 both ends, and two one-level end covers 5 compress tightly one-level bearing 7 side direction on gear input shaft 6.

As shown in fig. 1 and 2, two opposite side walls of the casing 1 are both connected with a second-stage end cover 8 by screws, the second-stage end cover 8 is in scarf joint with the second-stage shaft-installing hole 4, and the second-stage end cover 8 seals an opening of the second-stage shaft-installing hole 4. An output shaft 9 is rotatably arranged between the two secondary end covers 8, one end part of the output shaft 9 penetrates through the secondary end covers 8 to extend out of the inner chamber 2, a secondary gearwheel 10 is coaxially arranged in the middle of the output shaft 9 through key connection, and the secondary gearwheel 10 is meshed with a primary pinion 61 on the gear input shaft 6. And a secondary bearing 13 is embedded in each secondary shaft mounting hole 4, the two secondary bearings 13 are respectively sleeved on step shafts at two ends of the output shaft 9, and the two secondary end covers 8 laterally compress the secondary bearings 13 on the output shaft 9.

As shown in fig. 1 and 3, an oil filling hole 14 communicated with the inner chamber 2 is formed on the end surface of the upper shell 12, the oil filling hole 14 is positioned right above the second-stage gearwheel 10, and an oil filling plug 15 for blocking the oil filling hole 14 is embedded in the oil filling hole. When the oil filling device is used, a worker pulls out the oil filling plug 15 and then drips lubricating oil on the secondary gearwheel 10 through the oil filling hole 14.

As shown in fig. 1 and 3, a movable groove 16 is formed on an outer side wall of the lower housing 11, and a through hole 17 communicating with the movable groove 16 is formed on an outer side wall of the lower housing 11. An oil outlet hole 18 communicated with the movable groove 16 is formed in the bottom surface of the inner chamber 2, a hollow oil outlet hopper 19 is arranged in the movable groove 16, the oil outlet hopper 19 is fixedly connected with the lower shell 11, the oil outlet hopper 19 is positioned right below the oil outlet hole 18, and the oil outlet hopper 19 is communicated with the oil outlet hole 18. An oil outlet pipe 20 is fixedly connected to the bottom surface of the oil outlet bucket 19, the oil outlet pipe 20 is communicated with the oil outlet bucket 19, a hand wheel ball valve 21 for controlling the on-off of the oil outlet pipe 20 is installed on the oil outlet pipe 20, and a hand wheel of the hand wheel ball valve 21 penetrates through the through hole 17, so that a worker can conveniently rotate the hand wheel of the hand wheel ball valve 21 to control the on-off of the oil outlet pipe 20.

As shown in fig. 1 and 3, the oil receiving box 22 is slidably disposed in the movable groove 16, and a handle 221 is fixedly connected to an outer side wall of the oil receiving box 22, and the handle 221 provides a force application point for a user to pull the oil receiving box 22. An oil receiving groove 23 is formed in the top surface of the oil receiving box 22, and the oil receiving groove 23 is used for receiving the lubricating oil dropping from the oil outlet pipe 20. In use, the lubricating oil in the inner chamber 2 runs out of the inner chamber 2 from the oil outlet hole 18, then sequentially passes through the oil outlet hopper 19 and the oil outlet pipe 20 and falls into the oil receiving groove 23 of the oil receiving box 22 until the liquid level of the lubricating oil in the oil receiving groove 23 is close to the top surface of the oil receiving box 22, a worker draws out the oil receiving box 22, pours the lubricating oil contained in the oil receiving groove 23 into the recycling bin, and then plugs the oil receiving box 22 into the movable groove 16 again.

As shown in fig. 3 and 4, an oil pushing plate 24 is slidably disposed at the bottom of the inner chamber 2, the oil pushing plate 24 is a rectangular plate, and a mounting hole 25 is formed through the oil pushing plate 24. The bottom surface of the oil pushing plate 24 is fixedly connected with a row of brushes 26, and the row of brushes 26 are composed of a row of brushes 26. In operation, the oil pushing plate 24 and the brush 26 push the oil and the impurities deposited on the bottom of the inner chamber 2 toward the oil outlet 18.

As shown in fig. 4 and 5, two connection holes 27 are symmetrically formed in two opposite outer side walls of the lower case 11, the connection holes 27 are circular holes, and the connection holes 27 are formed in the outer side walls of the lower case 11 in the width direction. The outer side wall of the lower shell 11 is provided with a shaft penetrating hole 28, the shaft penetrating hole 28 is a circular hole, and the shaft penetrating hole 28 is located in the middle of the two connecting holes 27.

As shown in fig. 4 and 5, a driving mechanism is disposed in the inner chamber 2, and the driving mechanism is used for driving the oil pushing plate 24 to make reciprocating sliding motion at the bottom of the inner chamber 2, and the driving mechanism includes a bearing seat 29, a lead screw 34, a nut 36, and a driving motor 35.

As shown in fig. 4 and 5, the number of the bearing housings 29 is two, and the two bearing housings 29 are symmetrical to each other, the bearing housings 29 are provided on the side wall of the inner chamber 2, and the bearing housings 29 are located at the front side of the connection holes 27. Two connecting screws 30 are symmetrically arranged on the side wall of the bearing seat 29 facing the connecting hole 27, the two connecting screws 30 respectively penetrate through the two connecting holes 27, and the screw of the connecting screw 30 penetrates through the connecting hole 27 and is in threaded connection with a locking nut 31. A sealing gasket 32 is arranged between the bearing seat 29 and the side wall of the inner chamber 2, two through holes 33 for the connecting screw rods 30 to pass through are formed in the sealing gasket 32, and the sealing gasket 32 forms sealing between the bearing seat 29 and the side wall of the inner chamber 2 to limit the overflow of lubricating oil.

As shown in fig. 4 and 5, the lead screw 34 is rotatably disposed between the two bearing seats 29, the length direction of the lead screw 34 is the same as the length direction of the lower housing 11, one end of the lead screw 34 passes through the through-hole 28 to extend out of the inner chamber 2, one end of the lead screw 34 extending out of the inner chamber 2 is coaxially connected with the output shaft 9 of the driving motor 35, and the driving motor 35 is used for driving the lead screw 34 to rotate.

As shown in fig. 4 and 5, the nut 36 and the screw 34 form a ball screw nut pair, and the nut 36 includes a main body 361 and a flange plate 362. The main body 361 is sleeved on the lead screw 34, the main body 361 is matched with the mounting hole 25 in an inserting mode, the flange plate 362 is integrally connected to the end face of the main body 361, and the flange plate 362 is in screw connection with the outer side wall of the oil pushing plate 24.

The detailed working process of the embodiment is as follows: when a worker needs to remove the lubricating oil deposited at the bottom of the inner chamber 2, the worker firstly twists the hand wheel of the hand wheel ball valve 21 to enable the hand wheel ball valve 21 to be in an open state, then the driving motor 35 is turned on, the driving motor 35 drives the screw rod 34 to rotate, because the oil pushing plate 24 is slidably arranged at the bottom of the inner chamber 2, the oil pushing plate 24 is limited to rotate, the oil pushing plate 24 connected with the nut 36 is driven by the screw rod 34 to do reciprocating sliding motion at the bottom of the inner chamber 2, when the oil pushing plate 24 moves towards the direction close to the oil outlet 18, the oil pushing plate 24 pushes the lubricating oil to the oil outlet 18, the lubricating oil in the inner chamber 2 flows out of the inner chamber 2 from the oil outlet 18, and then sequentially passes through the oil outlet bucket 19 and the oil outlet pipe 20 and then falls into the oil receiving groove 23 of the oil receiving box 22.

This helical gear speed reducer slides at 2 bottoms in inner chambers and sets up and push away oiled plate 24 and drive and push away the actuating mechanism that oiled plate 24 was reciprocating motion, utilizes to push away oiled plate 24 and actuating mechanism and clears up the sedimentary lubricating oil in 2 bottoms in inner chambers, and the clearance is comparatively convenient.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. A helical gear speed reducer, its characterized in that: including casing (1) that has inner room (2), oil outlet (18) have been seted up on the bottom surface of inner room (2), the bottom of inner room (2) slides and is provided with and pushes away oil board (24) to oil outlet (18) with lubricating oil, set up on the lateral wall of casing (1) and wear shaft hole (28) with inner room (2) intercommunication, be provided with the drive in inner room (2) and push away oil board (24) and do reciprocating sliding motion's actuating mechanism in inner room (2) bottom, actuating mechanism sets up lead screw (34) that just pass shaft hole (28) between two bearing frames (29), slide and set up on lead screw (34) and with push away nut (36), drive lead screw (34) pivoted driving motor (35) that oil board (24) link to each other on lead screw (34).

2. The helical gear reducer according to claim 1, wherein: the oil pushing plate (24) is provided with a mounting hole (25), and the nut (36) comprises a main body (361) in plug-in fit with the mounting hole (25) and a flange plate (362) which is arranged on the end face of the main body (361) and connected with the side wall of the oil pushing plate (24).

3. The helical gear reducer according to claim 1, wherein: the bottom surface of the oil pushing plate (24) is provided with a row brush (26).

4. The helical gear reducer according to claim 1, wherein: the side wall of the inner chamber (2) close to the bearing seat (29) is provided with a plurality of connecting holes (27), the end face of the bearing seat (29) facing the connecting holes (27) is provided with a connecting screw rod (30) penetrating through the connecting holes (27), and the connecting screw rod (30) penetrates through the connecting holes (27) and is connected with a locking nut (31) through threads.

5. The helical gear reducer according to claim 4, wherein: a sealing gasket (32) is arranged between the bearing seat (29) and the side wall of the inner chamber (2), and a through hole (33) for the connecting screw rod (30) to penetrate through is formed in the sealing gasket (32).

6. The helical gear reducer according to claim 1, wherein: the oil outlet device is characterized in that a movable groove (16) is formed in the outer side wall of the casing (1), an oil outlet hopper (19) communicated with an oil outlet hole (18) is arranged in the movable groove (16), an oil outlet pipe (20) communicated with the oil outlet hopper is arranged below the oil outlet hopper (19), and a hand wheel ball valve (21) for controlling the on-off of the oil outlet pipe (20) is arranged on the oil outlet pipe.

7. The helical gear reducer according to claim 6, wherein: the outer side wall of the shell (1) is provided with a through hole (17) communicated with the movable groove (16), and a hand wheel of the hand wheel ball valve (21) penetrates through the through hole (17).

8. The helical gear reducer according to claim 6, wherein: an oil receiving box (22) is arranged in the movable groove (16) in a sliding mode, and an oil receiving groove (23) is formed in the top face of the oil receiving box (22).

9. The helical gear reducer according to claim 1, wherein: two side walls of the shell (1) which are back to back are respectively provided with a primary bearing (7) hole and a secondary bearing (13) hole which are sequentially arranged and are communicated with the inner chamber (2), the outer side wall of the shell (1) is provided with a primary end cover (5) for sealing the hole of the primary bearing (7) and a secondary end cover (8) for sealing the hole of the secondary bearing (13), a gear input shaft (6) with the end part penetrating through one primary end cover (5) to extend out of the inner chamber (2) is rotatably arranged between the adjacent primary end covers (5), a primary pinion (61) is arranged on the outer circumferential surface of the gear input shaft (6), an output shaft (9) with the end part penetrating through one secondary end cover (8) to extend out of the inner chamber (2) is rotatably arranged between the adjacent secondary end covers (8), and a secondary large gear (10) meshed with the primary small gear (61) is coaxially arranged on the output shaft (9).

10. The helical gear reducer according to claim 9, wherein: and a primary bearing (7) sleeved on the gear input shaft (6) is arranged in each primary bearing (7) hole, and a secondary bearing (13) sleeved on the output shaft (9) is arranged in each secondary bearing (13) hole.