CN210068932U

CN210068932U - External sealing device for maintenance of controllable starting transmission system

Info

Publication number: CN210068932U
Application number: CN201920932838.2U
Authority: CN
Inventors: 罗喜伟; 林超飞; 孙圣然; 彭帅
Original assignee: Luoyang Yichi Transmission Equipment Co Ltd
Current assignee: Luoyang Yichi Transmission Equipment Co Ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-02-14
Anticipated expiration: 2029-06-20

Abstract

The utility model discloses a controllable external sealing device for maintenance of starting transmission system, including the skeleton oil blanket, the skeleton oil blanket includes rubber outer lane and inlays the metal framework inside rubber outer lane, be provided with the spring on rubber outer lane's the inner wall, rubber outer lane's medial surface is provided with dustproof lip, the tight cover of one side of keeping away from the spring on the rubber outer lane has the sheath, one side an organic whole that is close to CST driver box on the sheath is provided with the packing ring. Has the advantages that: controllable start transmission system maintenance with external sealing device can directly install the oil blanket in the pivot and seal the pivot under the condition of not dismantling each spare part that links to each other with the pivot, guaranteed promptly that the CST driver can not follow the oil leak of pivot department, shortened the oil blanket change time again by a wide margin, reduce the oil blanket and change the degree of difficulty, it is convenient to change easy operation, labour saving and time saving, the replacement cost is low, the practicality is good.

Description

External sealing device for maintenance of controllable starting transmission system

Technical Field

The utility model relates to a controllable transmission system that starts maintains the field, concretely relates to controllable external sealing device for transmission system maintenance that starts.

Background

The CST controllable starting transmission system is a speed reducing system consisting of a multi-stage gear reducer, a wet clutch and hydraulic control, and is specially designed for smoothly starting a long-distance rubber belt conveyor for conveying large inertial load; the output torque of the CST controllable starting transmission system is controlled by a hydraulic system and changes along with the hydraulic pressure applied to the clutch, so that the soft start of the large-inertia load conveyor can be realized, the safety of the conveyor is effectively protected, and the CST controllable starting transmission system is widely applied to coal mine transportation.

In order to prevent the lubricating oil in the CST driver box from leaking, generally, an oil seal is arranged on the CST driver box, the lubricating oil in the CST driver box is prevented from leaking from the joints of the input shaft, the output shaft and the box through the oil seal, however, the lubricating oil is influenced by the working environment of the CST controllable starting transmission system (the CST controllable starting transmission system is more applied in a coal mine factory area, the working environment is dusty, dust falls on the input shaft or the output shaft and contacts with the oil seal, so that the oil seal is abraded), the service life of the oil seal is very short, the oil seal is often easy to lose efficacy, moreover, in order to prevent external dust from entering the CST driver box, the used oil seal is an integral oil seal, which brings great troubles to maintenance and replacement, a coupler and a driving motor which are connected with the input shaft must be detached when the oil seal is replaced (if the oil seal on the output shaft is, the whole disassembly work is time-consuming and labor-consuming, needs to occupy a large amount of time, and takes little time from taking off the bad oil seal from the rotating shaft to sleeving a new oil seal again, so that most of the time is spent on disassembling and replacing the part connected with the output shaft or the input shaft when the controllable starting transmission system maintains and replaces the oil seal. This is clearly unreasonable and leaves room for improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a controllable external sealing device for transmission system maintenance that starts is just in order to solve above-mentioned problem, need dismantle the driving motor who links to each other with CST driver pivot in order to change among the solution prior art when the oil blanket on the CST driver box, fluid coupling, the braked wheel, the shaft coupling, just can take off the oil blanket through the axle footpath end of pivot behind parts such as stopper, and still need install on above-mentioned each part that links to each other with CST driver pivot again after new oil blanket sheathes in the pivot, whole in-process is consuming time longer, dismantle, the installation wastes time and energy, change with high costs. The utility model provides an optimal technical scheme can realize need not to dismantle parts such as shaft coupling, driving motor, belt conveyor, fluid coupling, the stopper that link to each other with CST driver pivot among a great deal of technical scheme, can directly overlap the oil blanket in the pivot, has saved the trouble of making a round trip to dismantle each spare part of installation, has shortened the oil blanket change time by a wide margin, and it is convenient to change easy operation, labour saving and time saving, and is with low costs, and the practicality is good, sees the following explanation in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a controllable external sealing device for starting transmission system maintenance, including the skeleton oil blanket, the skeleton oil blanket includes rubber outer lane and inlays the metal framework in the inside of rubber outer lane, be provided with the spring on the inner wall of rubber outer lane, the medial surface of rubber outer lane is provided with dustproof lip, the tight cover of one side of keeping away from the spring on the rubber outer lane has the sheath, one side an organic whole that is close to CST driver box on the sheath is provided with the packing ring, be provided with the fracture on sheath, rubber outer lane, packing ring, spring and the metal framework; the outer wall of sheath is tightened to overlap and is had the clamp, the clamp compresses tightly on the packing ring and with CST driver box body sealing fixed connection, the clamp includes strap and integrative tip that sets up at the strap both ends, and two tip pass through connecting bolt fixed connection.

As an important design of the scheme, the inner side surface of the sheath is provided with a dustproof lip, and the lower edges of the dustproof lip arranged on the rubber outer ring and the sheath are flush.

As the optimized design of the scheme, the fracture on the rubber outer ring is in a broken line shape.

As the optimal design of the scheme, a plurality of positioning pins are inserted into one side of the sheath, which is in contact with the rubber outer ring, the positioning pins are distributed in a central symmetry mode by taking the central axis of the rubber outer ring as the center, and the other ends of the positioning pins extend into the rubber outer ring and are fixedly connected with the metal framework.

As the optimized design of the scheme, connecting pieces are sleeved on two positioning pins positioned on two sides of the cut-off.

As the optimized design of the scheme, the cross section of the strap is L-shaped, a plurality of threaded holes are formed in the strap and the gasket, fastening screws penetrate through the threaded holes, and the strap and the gasket are fixedly installed on the outer wall of the CST driver box body through the fastening screws.

Has the advantages that: controllable start transmission system maintenance with external sealing device can directly install the oil blanket in the pivot and seal the pivot under the condition of not dismantling each spare part that links to each other with the pivot, guaranteed promptly that the CST driver can not follow the oil leak of pivot department, shortened the oil blanket change time again by a wide margin, reduce the oil blanket and change the degree of difficulty, it is convenient to change easy operation, labour saving and time saving, the replacement cost is low, the practicality is good.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the installation of the present invention;

fig. 2 is a front view of the present invention;

figure 3 is a cross-sectional view of the present invention from figure 2;

FIG. 4 is a front view of the present invention with the sheath removed;

fig. 5 is a cross-sectional view of fig. 4 according to the present invention.

The reference numerals are explained below:

1. a rubber outer ring; 2. a metal skeleton; 3. a spring; 4. positioning pins; 5. connecting sheets; 6. cutting off the port; 7. a sheath; 8. a gasket; 9. a cuff; 10. a threaded hole; 11. a dust lip; 12. an end portion; 13. a connecting bolt; 14. a CST driver tank; 15. a rotating shaft; 16. fastening screws; 17. a damaged oil seal.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the utility model provides an external sealing device for maintenance of controllable start transmission system, including a frame oil seal, the frame oil seal includes a rubber outer ring 1 and a metal frame 2 embedded in the rubber outer ring 1, a spring 3 is provided on the inner wall of the rubber outer ring 1, a dustproof lip 11 is provided on the inner side of the rubber outer ring 1, a sheath 7 is tightly sleeved on one side of the rubber outer ring 1 away from the spring 3, the sheath 7 is used for protecting the frame oil seal, because the working environment of the controllable start transmission system is relatively harsh and there is much dust, moreover, the external sealing device is installed on the outer wall of the CST driver box 14, the dust easily falls on the frame oil seal, therefore, in order to prolong the service life of the frame oil seal, the sheath 7 is specially sleeved on the outer part of the frame oil seal, a gasket 8 is integrally provided on one side of the sheath 7 close to the CST, the gasket 8 is arranged for sealing a gap between the hoop and the CST driver box body 14, so that oil in the CST driver box body 14 is prevented from overflowing from the gap between the hoop and the CST driver box body 14, the cutting openings 6 are formed in the sheath 7, the rubber outer ring 1, the gasket 8, the spring 3 and the metal framework 2, and the purpose of sleeving the framework oil seal on the rotating shaft 15 without disassembling parts such as a coupler, a driving motor, a belt conveyor, a hydraulic coupler and a brake which are connected with the rotating shaft 15 can be realized only by arranging the cutting openings 6 on the framework oil seal to design the integral oil seal into a split oil seal; the outer wall of sheath 7 is covered with the clamp tightly, the clamp is used for compressing tightly sheath 7 and skeleton oil blanket, prevent that fluid from leaking from pivot 15 and the junction that compresses tightly sheath 7 and skeleton oil blanket, the clamp compress tightly on packing ring 8 and with CST driver box 14 sealed fixed connection, so design, can prevent that fluid from leaking from the gap between clamp and the CST driver box 14, the clamp includes that strap 9 and an organic whole set up the tip 12 at strap 9 both ends, two tip 12 pass through connecting bolt 13 fixed connection, through screwing up the bolt alright tighten the clamp.

When an oil seal on the CST driver box body 14 is damaged, the rubber outer ring 1 can be directly broken off along the cutting opening 6 and sleeved on the rotating shaft 15 (the rotating shaft 15 generally refers to a shaft which is exposed outside the CST driver box body 14 and is provided with the oil seal), after the rotating shaft 15 is sleeved on the rubber outer ring 1, the cutting opening 6 of the rubber outer ring 1 is aligned, then the sheath 7 is tightly sleeved on the rubber outer ring 1 and pushes the sheath 7 to enable the rubber outer ring 1 to move towards the CST driver box body 14 along the rotating shaft 15 until the gasket 8 is tightly attached to the outer wall of the CST driver box body 14, then the hoop is sleeved on the sheath 7 and the position of the hoop is adjusted, the end part 12 of the hoop is preferably not positioned at the same position as the cutting opening 6, meanwhile, the side surface of the hoop needs to be tightly pressed on the gasket 8, finally the hoop is screwed and the hoop and the gasket 8 is fixed on the outer wall of, because the gasket 8 is tightly pressed between the hoop and the CST driver box body 14, and the gasket 8 and the sheath 7 are made of the same material as the rubber outer ring 1, the elasticity is good, so that the oil in the CST driver box body 14 can be effectively ensured not to overflow from the gap between the hoop and the CST driver box body 14, in addition, the damaged oil seal 17 on the rotating shaft 15 is not required to be removed during maintenance, because even if the oil in the CST driver box body 14 flows out of the CST driver box body 14 through the damaged oil seal 17, the overflowing oil can be prevented from leaking out under the blockage of the external sealing device of the utility model, the oil is ensured to be blocked in the external sealing device, and the parts such as a coupler, a driving motor, a belt conveyor, a hydraulic coupler, a brake and the like which are connected with the rotating shaft 15 are not required to be disassembled, a large amount of maintenance time is saved, the difficulty in oil seal, the replacement operation is simple and convenient, the time and the labor are saved, the replacement cost is low, and the practicability is good.

As an optional implementation manner, the inner side surface of the sheath 7 is provided with the dustproof lip 11, and the lower edges of the dustproof lip 11 arranged on the rubber outer ring 1 and the sheath 7 are flush, so that the dustproof lip 11 at the lower end of the rubber outer ring 1 is effectively protected from dust falling, and external dust is blocked by the dustproof lip 11 at the lower end of the sheath 7 and cannot enter the external sealing device, so that the dustproof lip 11 on the rubber outer ring 1 has a long service life.

The fracture 6 on the rubber outer ring 1 is in a broken line shape, so that the two ends of the rubber outer ring 1 can be prevented from moving in a dislocation manner, and the sealing performance of the rubber outer ring is prevented from being lost.

One side that contacts with rubber outer lane 1 on the sheath 7 is pegged graft and is had many locating pins 4, and many locating pins 4 use the central axis of rubber outer lane 1 to be central symmetric distribution as the center, and the other end of locating pin 4 stretches into in the rubber outer lane 1 and with 2 fixed connection of metal framework, designs like this, makes things convenient for sheath 7 and skeleton oil blanket fixed connection, can avoid the skeleton oil blanket to take place relative slip with sheath 7 simultaneously and reduce external sealing device's sealing performance.

The connecting piece 5 is sleeved on the two positioning pins 4 positioned on the two sides of the cut-off part 6, the two ends of the rubber outer ring 1 are firmly connected together through the connecting piece 5, and the trouble performance that the gap is reduced by the displacement of the rubber outer ring is avoided.

The cross section of the strap 9 is L-shaped, a plurality of threaded holes 10 are formed in the strap 9 and the gasket 8, fastening screws 16 are connected in the threaded holes 10 in a penetrating mode, and the strap 9 and the gasket 8 are fixedly installed on the outer wall of the CST driver box body 14 through the fastening screws 16.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a controllable external sealing device for transmission system maintenance that starts, includes the skeleton oil blanket, the skeleton oil blanket includes rubber outer lane (1) and inlays metal framework (2) inside rubber outer lane (1), be provided with spring (3) on the inner wall of rubber outer lane (1), the medial surface of rubber outer lane (1) is provided with dustproof lip (11), characterized by: a sheath (7) is tightly sleeved on one side, far away from the spring (3), of the rubber outer ring (1), a gasket (8) is integrally arranged on one side, close to the CST driver box body (14), of the sheath (7), and cutting openings (6) are formed in the sheath (7), the rubber outer ring (1), the gasket (8), the spring (3) and the metal framework (2); the outer wall of sheath (7) is fastened the cover and is had the clamp, the clamp compresses tightly on packing ring (8) and with CST driver box (14) sealed fixed connection, the clamp includes that strap (9) and integrative tip (12) that set up at strap (9) both ends, and two tip (12) are through connecting bolt (13) fixed connection.

2. The externally-arranged sealing device for the maintenance of the controllable starting transmission system as claimed in claim 1, wherein: the inner side surface of the sheath (7) is provided with a dustproof lip (11), and the lower edges of the dustproof lip (11) arranged on the rubber outer ring (1) and the sheath (7) are flush.

3. The externally-arranged sealing device for the maintenance of the controllable starting transmission system as claimed in claim 1, wherein: the cutting opening (6) on the rubber outer ring (1) is in a broken line shape.

4. The externally-arranged sealing device for the maintenance of the controllable starting transmission system as claimed in claim 1, wherein: one side that contacts with rubber outer lane (1) on sheath (7) is pegged graft and is had many locating pins (4), and many locating pins (4) use the central axis of rubber outer lane (1) to be central symmetry distribution as the center, the other end of locating pin (4) stretches into in rubber outer lane (1) and with metal framework (2) fixed connection.

5. The externally-arranged sealing device for the maintenance of the controlled start transmission system as claimed in claim 4, wherein: the two positioning pins (4) positioned at the two sides of the fracture (6) are sleeved with connecting pieces (5).

6. The externally-arranged sealing device for the maintenance of the controllable starting transmission system as claimed in claim 1, wherein: the cross section of the hoop (9) is L-shaped, a plurality of threaded holes (10) are formed in the hoop (9) and the gasket (8), fastening screws (16) penetrate through the threaded holes (10), and the hoop (9) and the gasket (8) are fixedly installed on the outer wall of the CST driver box body (14) through the fastening screws (16).