CN214305139U

CN214305139U - Pinion assembly

Info

Publication number: CN214305139U
Application number: CN202023234817.5U
Authority: CN
Inventors: 姜俊雄; 汪云强; 陶勇政
Original assignee: Nanchang Mineral Systems Co Ltd
Current assignee: Nanchang Mineral Systems Group Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-09-28
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a pinion assembly, which comprises a belt pulley, a shaft, a bearing seat body, a pinion, a bearing retainer ring and a bearing end cover, wherein the two ends of the shaft are arranged in the bearing seat body in a rotatable manner through the bearing, the bearing retainer ring is fixed outside the bearing through the bearing end cover, the two ends of the shaft extend out of the bearing seat body and are respectively provided with a pinion connecting end and a belt pulley connecting end, and the pinion and the belt pulley are correspondingly arranged on the pinion connecting end and the belt pulley connecting end; the inner wall of the bearing seat body between the bearing and the bearing retainer ring is provided with a plurality of pressure relief oil paths, and the pressure relief oil paths are internally provided with plugging valves. The beneficial effects of the utility model are that effectively solve the problem of pinion assembly oil leak to can prevent to cause the damage of pinion and axle when carrying out the pinion dismouting.

Description

Pinion assembly

Technical Field

The utility model belongs to the technical field of the cone crusher, concretely relates to pinion assembly.

Background

With the rapid development of the infrastructure of China, the demand and the day on gravel aggregates are greatly increased, but the national requirement on environmental protection is more and more strict, the national government strengthens the protection of the environment of riverways and farmlands, and the natural sand and the aggregates show the trends of reduced quantity, increased price and continuous reduction of quality, wherein the natural sand resources not only have regionalism and cause the limitation of exploitation and use regions, but also seriously damage the ecological environment due to the long-term exploitation of a large amount of natural sand, so that the search for alternative resources is at a glance, and the crushing and sand making of stone ores by using a crusher gradually becomes the main corner of sand for construction. Therefore, the demand of the crusher is very large in China, the speed of the crusher is increased quickly, and the single-cylinder cone crusher serving as the main machine type of the crusher is not only used in machine-made sand, but also widely applied to various industries such as metal mines, road construction, railway construction, city construction, hydropower construction and the like.

The single-cylinder hydraulic cone crusher has the characteristics of large crushing force, high production efficiency, lamination crushing, uniform finished product grain shape, low consumption of consumable parts, low operation cost and the like, and the main working mechanism of the single-cylinder hydraulic cone crusher consists of two cones with sections, namely a movable cone and a fixed cone. The main shaft of the movable moving cone is supported above the movable moving cone and is arranged in the fixed cone, and the main shaft swings back and forth relative to the fixed cone when rotating. When the movable cone is close to the fixed cone, ore between the movable cone and the fixed cone is crushed, and when the movable cone leaves the fixed cone, the crushed product is discharged through the ore discharge port, and the crushing is continuous. The power transmission of the device mainly drives a belt to transmit torque to a pinion assembly through a motor, the pinion assembly drives an eccentric assembly to rotate through the meshing of a large gear and a small gear, and a main shaft assembly is driven by the eccentric assembly to do pendular motion.

For the smooth power transmission, the pinion adopts a rolling bearing and thin oil lubrication, but because the bearing seat body is a closed space and the bearing rotates at high speed, the temperature of the thin lubrication in the bearing seat body can be increased, and because the bearing rotates at high speed, the lubricating oil is driven to continuously impact the rotating framework oil seals at two sides of the bearing, frequent impact and abrasion are caused, the sealing of the rotating framework oil seals is invalid, so that the oil leakage problem of the pinion assembly is caused, meanwhile, the rotating framework oil seals are easy-to-wear parts, because the original pinion is assembled on the shaft in an interference fit manner, a special tool and a hydraulic jack are required to be used for dismounting when the internal easy-to-wear parts are replaced every time, time and labor are consumed, the damage to the gear and the shaft is easily caused, and the equipment work is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pinion assembly can effectively solve the problem of pinion assembly oil leak to can prevent to cause the damage of pinion and axle when carrying out the pinion dismouting.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a pinion assembly comprises a belt pulley, a shaft, a bearing seat body, a pinion, bearing retainer rings and bearing end covers, wherein two ends of the shaft are rotatably arranged in the bearing seat body through a bearing; the inner wall of the bearing seat body between the bearing and the bearing retainer ring is provided with a plurality of pressure relief oil paths, and the pressure relief oil paths are internally provided with plugging valves.

Further, the bearing seat body is internally provided with an oil storage part in a concave mode, and the pressure relief oil way is communicated with the oil storage part.

Furthermore, the height of the pressure relief oil way is smaller than the lubricating oil level in the oil storage part.

Furthermore, an O-shaped ring groove is formed in the outer edge of the bearing end cover, an O-shaped sealing ring is arranged in the O-shaped ring groove, and a rotary framework oil seal is arranged between the bearing retainer ring and the bearing end cover.

Further, the bearing retainer ring presses close to bearing one end and extends the arch to the outside and set up the ring, and the ring height is higher than the rotating framework oil blanket.

Furthermore, the oil level device is arranged in one of the pressure relief oil passages.

Furthermore, the pinion is a conical bevel gear, the pinion is sleeved at the end of the shaft, a gear fixing plate is arranged on the end face of the smaller end of the pinion, a plurality of threaded holes are formed in the end faces of the gear fixing plate and the smaller end of the pinion in a matched mode, the gear fixing plate and the pinion are connected through bolts, a bolt fixing hole is radially formed in the end, connected with the pinion, of the shaft, and the shaft is connected with the gear fixing plate through bolts.

Furthermore, an auxiliary oil way is processed on the bearing seat body at the position corresponding to the pressure relief oil way.

Furthermore, the belt pulley connecting end belt is sequentially sleeved with a taper sleeve and a shaft sleeve, a shaft end baffle is arranged on the shaft sleeve, and the shaft end baffle is fixed at the belt pulley connecting end through a bolt.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a plurality of pressure release oil circuit has been seted up at the bearing pedestal inner wall that is located between bearing and the retaining ring, be provided with the jam valve in the pressure release oil circuit, consequently impact the continuous rotatory skeleton oil blanket of bearing both sides at lubricating oil, unnecessary lubricating oil can be followed the pressure release oil circuit and let out, prevent that lubricating oil from continuing to strike rotatory skeleton oil blanket and lead to rotatory skeleton oil blanket to damage, lead to the pinion oil leak, and the jam valve can play the restriction effect, only reach certain degree just can carry out the pressure release when the internal lubricating oil pressure of bearing pedestal, and guarantee that lubricating oil can not reveal under the normality.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the gear end structure of the present invention;

FIG. 3 is a schematic view of a pulley end structure of the present invention;

FIG. 4 is a schematic view of the structure of the bearing seat of the present invention;

FIG. 5 is a schematic view of the retainer ring structure of the present invention;

FIG. 6 is a schematic view of the structure of the bearing end cap of the present invention;

fig. 7 is a schematic view of the working state of the present invention;

in the figure: 1. the oil-saving bearing comprises an upper frame assembly, a main shaft assembly, a lower frame assembly, a belt pulley, a shaft, a bearing seat body, a bearing, a pinion, a bearing retainer, a bearing end cover, a pressure relief oil circuit, a blocking valve, a bearing retainer, a bearing seat body, a bearing, a pinion, a bearing retainer, a bearing end cover, a pressure relief oil circuit, a blocking valve, a bearing oil storage part, a bearing O-shaped sealing ring, a rotating framework oil seal, a ring, a gear fixing plate, an O-shaped ring groove, a taper sleeve, a shaft end baffle, an asbestos sealing gasket, a shaft, a bearing retainer, a bearing end cover, a bearing retainer, a bearing end cover, a bearing end cover, a bearing end cover, a bearing end cover, a bearing, a.

Detailed Description

Referring to fig. 1-7, a pinion assembly comprises a pulley 4, a shaft 5, a bearing seat 6, a pinion 8, a bearing retainer ring 9 and a bearing end cover 10, wherein two ends of the shaft 5 are rotatably arranged in the bearing seat 6 through the bearing 7, the bearing retainer ring 9 is fixed outside the bearing 7 through the bearing end cover 10, two ends of the shaft 5 extend out of the bearing seat 6 and are respectively provided with a pinion 8 connecting end and a pulley 4 connecting end, and the pinion 8 and the pulley 4 are correspondingly arranged on the pinion 8 connecting end and the pulley 4 connecting end; the inner wall of the bearing seat body 6 between the bearing 7 and the bearing retainer ring 9 is provided with a plurality of pressure relief oil paths 11, and the pressure relief oil paths 11 are internally provided with plugging valves 12. Consequently rotate at bearing 7 is high-speed, when the thin lubricated temperature in the bearing pedestal 6 risees, lubricating oil is to the continuous impact that strikes of the rotating skeleton oil blanket 15 of bearing 7 both sides, unnecessary lubricating oil can be followed pressure release oil circuit 11 and is leaked out, prevent that lubricating oil from continuing to strike rotating skeleton oil blanket 15 and lead to rotating skeleton oil blanket 15 to damage, lead to pinion 8 oil leak, and plugging valve 12 can play the limiting displacement, only reach certain degree when the lubricating oil pressure in the bearing pedestal 6 and just can carry out the pressure release, and guarantee that lubricating oil can not reveal under the normal state.

Wherein, bearing housing 6 is sunken to be provided with oil storage portion 13, and pressure release oil circuit 11 and oil storage portion 13 intercommunication. So that it can be ensured that the lubricating oil can be effectively discharged from the pressure relief oil passage 11.

Wherein, the height of the pressure relief oil path 11 is less than the lubricating oil level in the oil storage part 13. The lubricating oil can conveniently enter the lubricating oil position, so that the lubricating oil at the two ends of the bearing 7 is communicated.

Wherein, the outer edge of the bearing end cover 10 is provided with an O-shaped ring groove 18, an O-shaped sealing ring 14 is arranged in the O-shaped ring groove 18, and a rotary framework oil seal 15 is arranged between the bearing retainer ring 9 and the bearing end cover 10.

Wherein, the bearing retainer ring 9 is close to one end of the bearing 7 and is convexly provided with a circular ring 16 towards the outside, and the height of the circular ring 16 is higher than that of the rotating framework oil seal 15.

The oil level device is arranged in one of the pressure relief oil passages 11.

The pinion 8 is a conical bevel gear, the end portion of the shaft 5 is sleeved with the pinion 8, a gear fixing plate 17 is arranged on the end face of the small end of the pinion 8, a plurality of threaded holes are formed in the end faces of the gear fixing plate 17 and the small end of the pinion 8 in a matched mode, the gear fixing plate 17 is connected with the pinion 8 through bolts, a bolt fixing hole is formed in the end, connected with the pinion 8, of the shaft 5 in the radial direction, and the shaft 5 is connected with the gear fixing plate 17 through bolts.

Wherein, the bearing seat body 6 corresponding to the pressure relief oil path 11 is provided with an auxiliary oil path. The pressure relief oil path 11 can be conveniently processed on the side surface of the bearing seat body 6.

Wherein, the belt pulley 4 connecting end is still sheathed in proper order and is established taper sleeve 19 and axle sleeve 20, is provided with axle head baffle 21 on the axle sleeve 20, and axle head baffle 21 passes through the bolt fastening at the belt pulley 4 connecting end.

Of course, an asbestos sealing gasket 22 can be arranged at the joint of the bearing housing 6 and the bearing end cover 10 at the connecting end of the belt pulley 4, so that the connection tightness of the bearing housing 6 and the bearing end cover 10 can be improved.

The cone crusher is composed of an upper frame assembly 1, a main shaft 5 assembly 2 and a lower frame assembly 3. When in use, the utility model is arranged at the lower frame assembly 3 to be connected with the main shaft 5 assembly 2 in a transmission way. And the utility model discloses when the equipment, require pinion 8 to push up bearing retainer ring 9 and bearing 7 inner circle, taper sleeve 19 and bearing retainer ring 9 push up bearing 7 inner circle. In order to prevent the rotating framework oil seal 15 from being worn too fast, the contact surface of the bearing retainer ring 9 and the rotating framework oil seal 15 needs to be subjected to Haokay finish machining, and the surface roughness of the bearing retainer ring is enabled to be Ra0.4 at the lowest. The number of the pressure relief oil passages 11 and the size of the diameter of the oil passage hole are determined according to the size of the bearing seat body 6.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pinion assembly comprises a belt pulley, a shaft, a bearing seat body, a pinion, bearing retainer rings and bearing end covers, wherein two ends of the shaft are rotatably arranged in the bearing seat body through a bearing; the method is characterized in that: the inner wall of the bearing seat body between the bearing and the bearing retainer ring is provided with a plurality of pressure relief oil paths, and the pressure relief oil paths are internally provided with plugging valves.

2. A pinion assembly as set forth in claim 1 wherein: the bearing seat body is internally provided with an oil storage part in a concave mode, and the pressure relief oil way is communicated with the oil storage part.

3. A pinion assembly as set forth in claim 2 wherein: the pressure relief oil way is lower than the lubricating oil level in the oil storage part.

4. A pinion assembly as set forth in claim 1 wherein: an O-shaped ring groove is formed in the outer edge of the bearing end cover, an O-shaped sealing ring is arranged in the O-shaped ring groove, and a rotary skeleton oil seal is arranged between the bearing retainer ring and the bearing end cover.

5. A pinion assembly as set forth in claim 4 wherein: the bearing retainer ring is pressed close to bearing one end and is set up the ring to the protruding outside extension, and the ring height is higher than the rotating framework oil blanket.

6. A pinion assembly as set forth in claim 1 wherein: the oil level device is arranged in one of the pressure relief oil passages.

7. A pinion assembly as set forth in claim 1 wherein: the pinion is a conical bevel gear, the end portion of the shaft is sleeved with the pinion, a gear fixing plate is arranged on the end face of the smaller end of the pinion, a plurality of threaded holes are formed in the end faces of the gear fixing plate and the smaller end of the pinion in a matched mode, the gear fixing plate and the pinion are connected through bolts, a bolt fixing hole is formed in the end, connected with the pinion, of the shaft in the radial direction, and the shaft is connected with the gear fixing plate through bolts.

8. A pinion assembly as set forth in claim 1 wherein: the belt pulley connecting end belt is also sequentially sleeved with a taper sleeve and a shaft sleeve, the shaft sleeve is provided with a shaft end baffle, and the shaft end baffle is fixed at the belt pulley connecting end through a bolt.