CN210118443U

CN210118443U - Gear assembly and gear lubricating device

Info

Publication number: CN210118443U
Application number: CN201920619286.XU
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Wuxi Lead Intelligent Equipment Co Ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-02-28
Anticipated expiration: 2029-04-30

Abstract

The gear assembly comprises a lubricating gear with a shaft cavity and an oil guide shaft inserted in the shaft cavity. The lubricating gear is provided with an oil outlet channel which is communicated along the radial direction of the lubricating gear. The oil guide shaft is provided with a hollow oil way and an oil outlet hole which penetrates through the oil guide shaft along the radial direction of the oil guide shaft and is communicated with the oil way. The oil outlet hole is exposed in the shaft cavity, and after the oil guide shaft and the lubricating gear rotate relatively, the oil outlet hole is directly or indirectly communicated with the oil outlet channel. So set up, simple structure, convenient manufacturing, and can avoid the waste that lubricating grease used.

Description

Gear assembly and gear lubricating device

Technical Field

The utility model relates to a gear lubrication technical field especially relates to a gear assembly and gear lubricating arrangement with self-lubricating function.

Background

The gear is a wheel-shaped mechanical part which transfers torque by means of meshing of teeth, and the gear can realize the functions of changing rotating speed and torque, changing movement direction, changing movement form and the like by being transmitted with other tooth-shaped mechanical parts. The dry friction of the gear rotation affects the useful life of the gear and therefore the gear in operation must be lubricated effectively in time.

Please refer to a self-lubricating gear pair disclosed in chinese utility model No. CN 204300322U, which extrudes the lubricating oil in the oil storage plate by the pressure after gear meshing to lubricate the gears meshed therewith, however, the lubricating method needs to replace the oil storage plate at regular time; chinese patent application No. CN 108547929A discloses a self-lubricating gear, in which a vortex oil delivery channel is arranged inside the gear, and the lubricating oil is delivered to the outer end of the gear through the oil delivery channel, however, the gear is complex to process.

Therefore, how to provide a new gear assembly and gear lubricating device is a technical problem which needs to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lubricated convenient gear assembly and gear lubricating arrangement.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a gear assembly, is including having the lubricated gear of axle chamber and inserting and locating the oil axle that leads of axle intracavity, lubricated gear is equipped with the edge the oil outlet passageway that lubricated gear's radial direction link up, lead the oil axle be equipped with hollow oil circuit and follow the radial direction of leading the oil axle runs through lead the oil axle and with the oil outlet of oil circuit intercommunication, the oil outlet exposes in the axle intracavity, work as lead the oil axle with lubricated gear relative rotary motion back, the oil outlet direct or indirect with the oil outlet passageway intercommunication.

As a further improved technical scheme of the utility model, lubricated gear is equipped with the orientation the inner wall of shaft cavity and with the outer wall that the inner wall is relative, the oil outlet passageway runs through the inner wall forms the hydraulic fluid port, the oil outlet passageway runs through the outer wall forms the oil-out, the centre of a circle of oil outlet with the center of hydraulic fluid port is followed the radial direction coplane of gear assembly.

As the utility model discloses further modified technical scheme, lubricated gear includes two sets of coaxial gear and axial connection the portion of producing oil of two sets of coaxial gear, the passageway of producing oil is located in the portion of producing oil.

As a technical scheme of the utility model further improved, two sets of coaxial gear include coaxial gear and lower coaxial gear, the gear assembly still is equipped with and is used for supporting lead the oil spindle with go up coaxial gear relative motion's upper bearing, and the cover is located lead epaxial and being located the spacer ring of upper bearing top.

As the utility model discloses further modified technical scheme, the portion of producing oil still is equipped with and is located go up coaxial gear with cavity between the lower coaxial gear, the passageway of producing oil with the oil outlet passes through the cavity communicates each other.

As the utility model discloses further modified technical scheme, it upwards extends and surpasss to lead the oil shaft go up the upper end and the downwardly extending of coaxial gear up end and surpass the lower tip of terminal surface under the lower coaxial gear, the lower tip be equipped with the oil pump interface of oil circuit intercommunication, oil pump interface is used for connecting the oil pump.

The utility model also discloses a technical scheme, a gear lubricating arrangement, including aforementioned gear assembly and drive the drive arrangement of gear assembly motion, drive arrangement be used for with the gear assembly is pushed to treating lubricated gear.

As a further improved technical solution of the utility model, drive arrangement include the driving piece and with the swing arm that the driving piece is connected, wherein the swing arm is equipped with first arm, second arm and will first arm with the second arm is the rotating part that a contained angle is connected, first arm with the gear assembly is connected, the second arm with the driving piece is connected, the center of rotation of swing arm set up in the rotating part.

As the utility model discloses further modified technical scheme, the driving piece is the cylinder, just the cylinder with the end-to-end connection of second arm, the cylinder is used for the drive the swing arm is rotatory.

As a further improved technical scheme of the utility model, still include control center, control center with the gear assembly is connected.

Compared with the prior art, the utility model discloses gear lubricating arrangement's gear assembly sets up oil circuit and oil outlet in leading the oil axle, when lubricating grease extrudees to lubricated gear's the passageway that produces oil by the oil outlet of leading the oil axle, lubricating grease can get into in the gear groove of lubricated gear periphery through oil outlet and the passageway that produces oil, can treat lubricated gear and lubricate when treating lubricated gear engagement at lubricated gear, the utility model discloses gear lubricating arrangement and gear assembly design benefit, it is lubricated convenient, and can avoid extravagant lubricating grease.

Drawings

Fig. 1 is a schematic front view of the gear assembly of the present invention.

Fig. 2 is a schematic sectional view along a-a of fig. 1.

Fig. 3 is a schematic top view of a lubricated gear of the gear assembly of the present invention.

Fig. 4 is a schematic perspective view of an oil guide shaft of the gear assembly of the present invention.

Fig. 5 is a schematic cross-sectional view taken along line B-B of fig. 4.

Fig. 6 is a schematic front view of the gear lubricating device of the present invention.

Fig. 7 is a schematic plan view of the gear lubricating device of the present invention.

Fig. 8 is a schematic plan view of a swing arm of the gear lubricating device of the present invention.

Fig. 9 is a schematic plan view of the non-operating state of the gear lubricating device and the gear to be lubricated in non-contact with each other.

Fig. 10 is a schematic plan view of the gear lubricating device of the present invention in contact with a gear to be lubricated.

Detailed Description

Referring to fig. 1 to 10, the present invention discloses a gear assembly 100, which includes a lubrication gear 1 having a shaft cavity 10, an oil guide shaft 2 inserted into the shaft cavity 10, a bearing 4 for supporting the relative movement between the lubrication gear 1 and the oil guide shaft 2, and a spacer ring 3 sleeved on an end of the oil guide shaft 2 and abutting against the surface of the bearing downward. The lubricating gear 1 is rotatably movably fixed with the oil guide shaft 2 through a bearing, namely, the lubricating gear 1 can rotate around the oil guide shaft 2.

As shown in fig. 2 and 6, the lubricating gear 1 includes two sets of coaxial gears 11 and a cylindrical oil outlet portion 12 connecting the two sets of coaxial gears 11. The shaft cavity 10 extends from top to bottom into the two sets of coaxial gears 11 and the oil outlet part 12. Each coaxial gear 11 includes a body 111 and teeth 112 uniformly distributed on the outer circumferential surface of the body 111. The oil outlet portion 12 is provided with an inner wall 121 facing the shaft cavity 10, an outer wall 122 opposite to the inner wall 121, and an oil outlet passage 120 penetrating the oil outlet portion 12 in a radial direction of the gear assembly 100. The oil outlet passage 120 penetrates the inner wall 121 inwards to form an oil inlet 1210 communicated with the shaft cavity 10, and penetrates the outer wall 122 outwards to form an oil outlet 1220. In this embodiment, the oil outlet passage 120 may be provided in a plurality, and the oil outlet 1220 and the oil inlet 1210 are provided in a plurality, opposite to each other. Preferably, the oil outlet 1220 and the oil inlet 1210 are both circular.

The oil guide shaft 2 is axially inserted into the shaft cavity 10. The oil guide shaft 2 is provided with a hollow oil passage 20 and an oil outlet 21 radially penetrating in the radial direction of the oil guide shaft 2 and communicating with the oil passage 20. In the radial direction, the center of the oil outlet 21 and the center of the oil inlet 1210 (also the center of the circle) are coplanar in the radial direction of the gear assembly 100.

The two sets of coaxial gears 11 include an upper coaxial gear 113 and a lower coaxial gear 114. The bearing 4 includes an upper bearing 41 provided at a fitting portion of the oil guide shaft 2 and the upper coaxial gear 113, and a lower bearing 42 provided at a fitting portion of the oil guide shaft 2 and the lower coaxial gear 114. In the axial direction, the oil outlet hole 21 is located between the upper bearing 41 and the lower bearing 42. The shaft cavity 10 is divided by the upper bearing 41, the lower bearing 42 and the inner wall 121 of the oil outlet portion 12 to form a relatively closed chamber 101, and the chamber 101 is communicated with the oil inlet 1210 of the oil outlet passage 120. In the present embodiment, the chamber 101 is used for accommodating grease output by the oil guide shaft 2. In other embodiments, the oil outlet hole 21 may be disposed in the axial direction of the oil guide shaft 2, and it is only necessary to keep the oil outlet hole 21 in communication with the chamber 101. Thus, the oil outlet hole 21 may be indirectly communicated with the oil inlet 1210 of the oil outlet passage 120 through the chamber 101. In this embodiment, if the chamber 101 is not provided, the oil outlet 21 and the oil inlet 1210 may be aligned and directly communicated by rotating the oil guide shaft 2.

The oil guide shaft 2 is provided with an upper end portion 23 extending upward beyond the upper end surface of the upper coaxial gear 113 and a lower end portion 24 extending downward beyond the lower end surface of the lower coaxial gear 114. The lower end portion 24 is provided with an oil pump port 241 communicating with an external oil pump to externally connect an oil pump (not shown), and the oil pump port 241 communicates with the oil passage 20. The upper end 23 is sleeved with a spacer ring 3, and the spacer ring 3 is located on the upper surface of the upper bearing 41 to protect the upper bearing 41 and prevent abrasion caused by friction between external objects and the upper bearing 41 in the subsequent operation process.

The utility model also discloses a gear lubricating arrangement 900, including aforementioned gear assembly 100, drive arrangement 800 and the control drive arrangement 800 of drive gear assembly 100 motion with gear assembly 100 to the external control center (not numbered) of waiting to lubricate gear 700 motion.

The driving device 800 includes a swing arm 6 movably connected to the gear assembly 100, a driving member 7 for driving the swing arm 6 to move, and a solenoid valve 91 for controlling the driving member 7 by signal.

The swing arm 6 is provided with a first arm portion 61 connected to the gear assembly 100, a second arm portion 62 connected to the driver 7, and a rotating portion 63 connected to the first arm portion 61 and the second arm portion 62 and around which the swing arm 6 is rotated. The first arm 61 and the second arm 62 are connected by a rotating portion 63 at an angle. In this embodiment, the rotation center of the swing arm 6 is disposed on the rotating portion 63, the rotating portion 63 is provided with a through hole 630, and the external fixing column 93 passes through the through hole 630 to movably fix the rotating portion 63 of the swing arm 6, so that the swing arm 6 can also rotate around the fixing column 93. With such an arrangement, the first arm 61 and the second arm 62 are connected in a substantially L-shape, so that the movement stroke of the lubricating gear 1 can be increased, and the structural design is optimized. The end of the first arm 61 is provided with a fastening hole 610 matching with the upper end 23 of the oil guide shaft 2, and the fastening hole 610 is used for fastening the upper end 23. The end of the second arm part 62 is movably connected with the driving part 7, and the driving part 7 can drive the second arm part 62 to rotate, so as to drive the whole swing arm 6 to rotate. In the present embodiment, the driver 7 is a cylinder.

The gear lubrication device 900 is also provided with a pressure relief valve 92. The pressure reducing valve 92 is used for adjusting the driving member 7, so that the driving member 7 can provide a stable acting force for the lubricating gear 1, the excessive and insufficient meshing force between the lubricating gear 1 and the gear 700 to be lubricated can be avoided, and the stable and reliable transmission between the lubricating gear 1 and the gear 700 to be lubricated can be facilitated.

Referring to fig. 9 to 10 in combination with fig. 1, when the oil outlet 21 is staggered from the oil inlet 1210, the grease is sealed in the oil passage 21 and is not discharged. When the driving member 7 drives the second arm portion 62 to move, one end of the second arm portion 62 connected to the driving member 7 starts to drive the rotating portion 63 to rotate, so as to drive the first arm portion 61 to move, and the first arm portion 61 drives the oil guide shaft 2 and the gear assembly 100 to move until the lubricating gear 1 is meshed with the gear 700 to be lubricated. Meanwhile, under the pressure of the oil pump, the lubricating grease enters the cavity 101 through the oil outlet hole 21, is conveyed into the oil outlet channel 120 through the cavity 101, and is output to the outer peripheral surface of the lubricating gear 1 through the oil outlet 1220, when the lubricating gear 1 is in contact with the gear 700 to be lubricated, the lubricating gear 1 is meshed with the gear 700 to be lubricated to coat the lubricating grease on the gear 700 to be lubricated, and the effect of lubricating the gear 700 to be lubricated is achieved.

To sum up, the utility model discloses gear lubricating arrangement 900 and gear assembly 100 are through setting up oil circuit 20 and oil outlet 21 in leading oil axle 2, when oil outlet 21 of leading oil axle 2 is linked together with lubricated gear 1's oil outlet 120, lubricating grease gets into oil outlet 120 through oil outlet 21 to carry lubricating grease to lubricated gear 1's surface, form the self-lubricating, can treat lubricated gear 700 and lubricate when treating lubricated gear 700 meshing at lubricated gear 1, the utility model discloses gear lubricating arrangement 900 and gear assembly 100 design is ingenious, and it is convenient to lubricate, and can avoid extravagant lubricating grease.

The control center is respectively connected with the oil pump and the driving part 7, the control center controls the action of the oil pump and the driving part 7, and when the gear 700 to be lubricated needs to be lubricated, the control center controls the oil pump to pump oil and the driving part 7 to drive the gear assembly 100 to push the gear 700 to be lubricated, so that the gear assembly 100 coats the gear 700 to be lubricated with lubricating grease.

The above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present specification should be based on the technical people in the related art, for example, the descriptions of the directions such as "front", "back", "left", "right", "up", "down", etc., although the present specification has described the present invention in detail with reference to the above embodiments, the ordinary skilled in the art should understand that the technical people in the related art can still modify or substitute the present invention, and all the technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. The utility model provides a gear assembly, its characterized in that, including the lubricated gear that has the shaft cavity and insert and locate the oil guide shaft in the shaft cavity, lubricated gear is equipped with the edge the radial direction of lubricated gear radially link up goes out oil passage, it is equipped with hollow oil circuit and follows the radial direction of oil guide shaft runs through lead oil shaft and with the oil outlet of oil circuit intercommunication, the oil outlet exposes in the shaft cavity, work as lead oil shaft with lubricated gear relative rotary motion back, the oil outlet directly or indirectly with go out oil passage intercommunication.

2. The gear assembly of claim 1, wherein: the lubricating gear is provided with an inner wall facing the shaft cavity and an outer wall opposite to the inner wall, the oil outlet channel penetrates through the inner wall to form an oil inlet, the oil outlet channel penetrates through the outer wall to form an oil outlet, and the circle center of the oil outlet and the center of the oil inlet are coplanar along the radial direction of the gear assembly.

3. The gear assembly of claim 1, wherein: the lubricating gear 1 comprises two groups of coaxial gears and an oil outlet part axially connected with the two groups of coaxial gears, and the oil outlet channel is arranged in the oil outlet part.

4. The gear assembly of claim 3, wherein: the two groups of coaxial gears comprise an upper coaxial gear and a lower coaxial gear, the gear assembly is further provided with an upper bearing for supporting the oil guide shaft and the upper coaxial gear to move relatively, and a spacer ring which is sleeved on the oil guide shaft and is positioned above the upper bearing.

5. The gear assembly of claim 4, wherein: the oil outlet part is also provided with a cavity between the upper coaxial gear and the lower coaxial gear, and the oil outlet channel is communicated with the oil outlet hole through the cavity.

6. The gear assembly of claim 1, wherein: the oil guide shaft is provided with an upper end portion extending upwards and exceeding the upper end face of the upper coaxial gear and a lower end portion extending downwards and exceeding the lower end face of the lower coaxial gear, the lower end portion is provided with an oil pump interface communicated with the oil way, and the oil pump interface is used for being connected with an oil pump.

7. A gear lubrication device characterized by: comprising a gear assembly according to any one of claims 1-6 and drive means for driving the gear assembly in motion, the drive means being adapted to urge the gear assembly towards a gear to be lubricated.

8. The gear lubrication device of claim 7, wherein: the driving device comprises a driving piece and a swing arm connected with the driving piece, wherein the swing arm is provided with a first arm part, a second arm part and a rotating part connected with the first arm part and the second arm part at an included angle, the first arm part is connected with the gear assembly, the second arm part is connected with the driving piece, and the rotating center of the swing arm is arranged on the rotating part.

9. The gear lubrication device of claim 8, wherein: the driving piece is an air cylinder and is connected with the tail end of the second arm part, and the driving piece is used for driving the swing arm to rotate.

10. The gear lubrication device of claim 7, wherein: the gear assembly is characterized by further comprising a control center, and the control center is connected with the gear assembly.