CN216343842U

CN216343842U - Speed reducer for wheel crusher

Info

Publication number: CN216343842U
Application number: CN202122696927.1U
Authority: CN
Inventors: 陶常彬; 乔双鹏; 尹庆德; 韩晓丽; 翟淑东
Original assignee: Shandong Huacheng Sino German Transmission Equipment Co ltd
Current assignee: Shandong Huacheng Sino German Transmission Equipment Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-04-19
Anticipated expiration: 2031-11-05

Abstract

A speed reducer for a wheel crusher belongs to the technical field of speed reducers. The method is characterized in that: the high-speed shaft (2) of the speed reducer main body is connected with the speed reducer main body in a rotatable mode through a bearing, the bearing is arranged in a lubricating cavity between the speed reducer main body and the high-speed shaft (2), an input port of the forced lubricating device is connected with the middle lower portion of the speed reducer main body, an output port of the forced lubricating device is connected with one side of the lubricating cavity, the other side of the lubricating cavity is communicated with an inner cavity of the speed reducer main body, and the cooling device is arranged in the speed reducer main body. This speed reducer for wheeled crusher carries out force-feed lubrication to the bearing of high-speed shaft, can also take away the heat that bearing department produced, avoids the operating temperature of bearing too high, and cooling device sets up in the speed reducer main part, can cool off the lubricating oil in the speed reducer main part, avoids the lubricating oil temperature in the speed reducer main part too high, avoids the operating temperature of the bearing of high-speed shaft too high, guarantees the long service life of the bearing of high-speed shaft.

Description

Speed reducer for wheel crusher

Technical Field

A speed reducer for a wheel crusher belongs to the technical field of speed reducers.

Background

The reducer is an independent part consisting of gear transmission, worm transmission and gear-worm transmission enclosed in a rigid shell, and is commonly used as a speed reduction transmission device between a prime mover and a working machine. The function of matching the rotation speed and transmitting the torque between the prime mover and the working machine or the actuating mechanism is very extensive in modern machinery.

A speed reducer is arranged on the wheel type crusher for use, and the wheel type crusher is generally applied to underground coal mines, and has large vibration and severe working condition environment. The speed reducer on the existing wheel type crusher generally has the following problems in the use process: 1) due to large vibration, oil leakage is easy to occur between the output shaft and the shell; 2) due to bad working conditions, the temperature of lubricating oil in the shell can be overhigh in the using process of the speed reducer, so that the bearing is in a high-temperature working environment, and the service life of the bearing is influenced; 3) due to the complex underground working condition of the coal mine, the installation of the speed reducer is limited by space, so that the disassembly and the assembly of the speed reducer are troublesome.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: the speed reducer for the wheel crusher overcomes the defects of the prior art, can ensure that the temperature of lubricating oil in the main body of the speed reducer is proper, and has good lubricating and cooling effects on bearings.

The technical scheme adopted by the utility model for solving the technical problems is as follows: this speed reducer for wheeled crusher, its characterized in that: including the speed reducer main part, cooling device and forced lubrication device, the high-speed shaft of speed reducer main part passes through the bearing rotatable and links to each other with the speed reducer main part, and the bearing setting is in the lubrication chamber between speed reducer main part and high-speed shaft, and forced lubrication device's input port links to each other with the well lower part of speed reducer main part, and forced lubrication device's delivery outlet links to each other with one side in lubrication chamber, and the opposite side in lubrication chamber is linked together with speed reducer main part inner chamber, and cooling device sets up in the speed reducer main part.

Preferably, the bearing include tapered roller bearing and high-speed axle self-aligning bearing, the lubricated chamber is including the first lubricated chamber that holds tapered roller bearing and the second lubricated chamber that holds high-speed axle self-aligning bearing, force lubricating arrangement's delivery outlet simultaneously and first lubricated chamber and second lubricated chamber be linked together. Tapered roller bearing can bear the axial force of high-speed axle, and high-speed axle self-aligning bearing can bear the radial force of high-speed axle, and first lubricated chamber is independent with the lubricated chamber of second, can guarantee that tapered roller bearing and high-speed axle self-aligning bearing can both obtain abundant lubrication.

Preferably, the speed reducer main body is internally provided with an installation sleeve which is sleeved outside the high-speed shaft, the first lubricating cavity is formed between the installation sleeve and the high-speed shaft, the tapered roller bearings are paired tapered roller bearings, the installation sleeve is provided with an oil inlet hole, one end of the oil inlet hole is communicated with an output port of the forced lubricating device, and the other end of the oil inlet hole is arranged between the two tapered roller bearings. The paired tapered roller shafts can bear axial force in two directions, and the oil inlet hole is formed between the two tapered roller bearings, so that the two tapered roller bearings can be fully lubricated.

Preferably, an oil return groove is formed in the speed reducer body, and an output port of the forced lubricating device is communicated with the lubricating cavity through the oil return groove. An oil pipe does not need to be arranged in the speed reducer main body, and the interference to the work of gears in the speed reducer main body is avoided.

Preferably, the forced lubrication device comprises a shaft end pump, and the shaft end pump is mounted at the end part of the low-speed shaft of the speed reducer main body.

Preferably, the top and the bottom of the speed reducer main body are both provided with a plurality of cooling devices. The top and the bottom of speed reducer main part all are provided with a plurality of cooling device, guarantee that the cooling effect to the lubricating oil in the speed reducer main part is good.

Preferably, the cooling device is a drawer cooler.

Preferably, the speed reducer further comprises a shaft sleeve, the shaft sleeve is coaxially sleeved outside the low-speed shaft of the speed reducer main body, the shaft sleeve is located between the output end of the low-speed shaft and the speed reducer main body, and a plurality of annular grooves are formed in the inner wall of the shaft sleeve at intervals. The inner wall of the shaft sleeve is provided with a plurality of annular grooves, so that an oil film can be formed between the shaft sleeve and the low-speed shaft, and oil leakage between the low-speed shaft and the speed reducer main body is avoided.

Preferably, the reducer further comprises a mounting flange mounted on the reducer body, the mounting flange and the low-speed shaft of the reducer body are coaxially arranged, and the mounting flange is located in the middle of the reducer body in the height direction.

Preferably, the mounting flange further comprises an upper hanging lug and a lower hanging lug, the upper hanging lug and the lower hanging lug are symmetrically arranged on the upper side and the lower side of the mounting flange, the upper hanging lug is symmetrically arranged on two sides of the mounting flange, the lower hanging lug is symmetrically arranged on two sides of the mounting flange, and the upper hanging lug is positioned right above the lower hanging lug on the corresponding side. The mounting flange sets up in the middle part of the direction of height of speed reducer main part, goes up hangers and lower hangers also symmetry and sets up, can satisfy various installation requirements.

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

this forced lubrication device of speed reducer for wheeled breaker carries the lubricating oil in with the speed reducer main part to the bearing department of high-speed shaft, carry out forced lubrication to the bearing of high-speed shaft, can also take away the heat that bearing department produced, the operating temperature who avoids the bearing is too high, cooling device sets up in the speed reducer main part, can cool off the lubricating oil in the speed reducer main part, the lubricating oil temperature in avoiding the speed reducer main part is too high, the operating temperature of the bearing of avoiding the high-speed shaft is too high, guarantee the long service life of the bearing of high-speed shaft.

Drawings

Fig. 1 is a schematic plan sectional view of a reducer for a wheel crusher.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is a partially enlarged view of B in fig. 1.

Fig. 4 is a rear view schematically showing a speed reducer for a wheel crusher.

Fig. 5 is a right side schematic view of a reducer for a wheel crusher.

Fig. 6 is a schematic plan view of a reducer for a wheel crusher.

Fig. 7 is a front view schematically showing a speed reducer for a wheel crusher.

In the figure: 1. the high-speed shaft self-aligning type oil-saving pump comprises a shell 101, an upper hanger 102, a lower hanger 2, a high-speed shaft 3, a low-speed shaft 4, a shaft end pump 5, a second oil return groove 6, a first oil return groove 7, a high-speed shaft self-aligning bearing 8, a tapered roller bearing 9, an installation sleeve 901, a groove 902, an oil inlet hole 10, a driven bevel gear 11, a driving bevel gear 12, a low-speed shaft self-aligning bearing 13, an oil seal 14, a shaft sleeve 15, an oil outlet pipe 16, an oil inlet pipe 17, a drawer type cooler 18, a safety valve 19 and an installation flange.

Detailed Description

Fig. 1 to 7 are preferred embodiments of the present invention, and the present invention will be further described with reference to fig. 1 to 7.

The utility model provides a speed reducer for wheeled breaker, including the speed reducer main part, cooling device and forced lubrication device, the high-speed shaft 2 of speed reducer main part links to each other with the speed reducer main part through the bearing is rotatable, the bearing sets up the lubrication cavity between speed reducer main part and high-speed shaft 2, forced lubrication device's input port links to each other with the well lower part of speed reducer main part, forced lubrication device's delivery outlet links to each other with one side in lubrication cavity, the opposite side in lubrication cavity is linked together with speed reducer main part inner chamber, cooling device sets up in the speed reducer main part. This forced lubrication device of speed reducer for wheeled crusher carries the lubricating oil in with the speed reducer main part to the bearing department of high-speed shaft 2, carry out forced lubrication to the bearing of high-speed shaft 2, can also take away the heat that bearing department produced, the operating temperature who avoids the bearing is too high, cooling device sets up in the speed reducer main part, can cool off the lubricating oil in the speed reducer main part, the lubricating oil temperature in avoiding the speed reducer main part is too high, the operating temperature of the bearing of avoiding high-speed shaft 2 is too high, guarantee the long service life of the bearing of high-speed shaft 2.

The present invention is further described with reference to the following detailed description, however, it should be understood by those skilled in the art that the detailed description given herein with respect to the accompanying drawings is for better explanation and that the present invention is not necessarily limited to the specific embodiments, but rather, for equivalent alternatives or common approaches, may be omitted from the detailed description, while still remaining within the scope of the present application.

Specifically, the method comprises the following steps: as shown in FIGS. 1 to 3: the speed reducer main part includes casing 1, low-speed shaft 3, high-speed shaft 2, drive bevel gear 11 and driven

bevel gear

10, and 2 levels of high-speed shaft set up, and the vertical setting of low-speed shaft 3, high-speed shaft 2 set up in the left side of low-speed shaft 3, and high-speed shaft 2 and the equal rotatable installation of low-speed shaft 3 are on casing 1, and the left end of high-speed shaft 2 stretches out casing 1 and sets up, and the lower extreme of low-speed shaft 3 stretches out casing 1 and sets up. The driving bevel gear 11 is arranged at the right end of the high-speed shaft 2, the driving bevel gear 11 and the high-speed shaft 2 are integrally arranged, the driven bevel gear 10 is coaxially arranged on the low-speed shaft 3, the driven bevel gear 10 drives the low-speed shaft 3 to synchronously rotate, and the driven bevel gear 10 is positioned on the upper side of the driving bevel gear 11 and meshed with the driving bevel gear 11.

The low-speed shaft 3 is mounted on the housing 1 through the low-speed shaft self-aligning bearing 12, and the top and the bottom of the low-speed shaft 3 are both rotatably mounted on the housing 1 through the low-speed shaft self-aligning bearing 12. The high-speed shaft 2 is rotatably mounted on the shell 1 through a bearing, wherein the bearing comprises a high-speed shaft aligning bearing 7 and a tapered roller bearing 8, the tapered roller bearing 8 is arranged on the left side of the high-speed shaft aligning bearing 7, the tapered roller bearing 8 is a paired tapered roller bearing, a spacer bush is arranged between the tapered roller bearing 8 and the high-speed shaft aligning bearing 7, and the spacer bush is sleeved outside the high-speed shaft 2. The paired tapered roller bearings are bearings with the model number of 32226J2/DF of SKF manufacturers, are arranged in a face-to-face mode, can bear all axial force and partial radial force, are convenient to install, do not need to adjust bearing gaps intentionally, and are reliable in performance and long in service life.

Be provided with useful lubricated chamber between casing 1 and high-speed axle 2, lubricated chamber encircles the setting of high-speed axle 2, and lubricated chamber includes first lubricated chamber and the lubricated chamber of second, and first lubricated chamber setting is in the left side in the lubricated chamber of second, and tapered roller bearing 8 sets up in first lubricated intracavity, and high-speed axle self-aligning bearing 7 sets up in the lubricated intracavity of second. The first lubricating cavity and the second lubricating cavity are separated by an oil seal 13, and the oil seal 13 is sleeved outside the high-speed shaft 2.

Encircle high-speed shaft 2 and be provided with installation cover 9, install the coaxial cover of cover 9 and establish outside high-speed shaft 2, installation cover 9 is installed in casing 1, and the interval sets up between installation cover 9 and the high-speed shaft 2 to form first lubricated chamber between installation cover 9 and high-speed shaft 2, sealing connection between the left end of installation cover 9 and casing 1, separate through oil blanket 13 between the right-hand member of installation cover 9 and the lubricated chamber of second.

The top and the bottom of installation cover 9 all are provided with the through-hole to form inlet port 902 at the top of installation cover 9, form the oil outlet in the bottom of installation cover 9, inlet port 902 and oil outlet all follow the radial setting of installation cover 9, inlet port 902 and oil outlet all set up the middle part at two tapered roller bearing 8, the top of installation cover 9 is provided with recess 901, the one end setting of recess 901 is on the left end face of installation cover 9, the other end is linked together with inlet port 902, the lower extreme of oil outlet is linked together with casing 1's inner chamber.

Be provided with the oil gallery on casing 1, wherein the oil gallery includes first oil gallery 6 and second oil gallery 5, and the one end of first oil gallery 6 sets up the outside of shell 1, and the other end is linked together with recess 901, and the one end setting of second oil gallery 5 is in the casing 1 outside, and the other end is linked together with the lubricated chamber of second.

One end face of the high-speed shaft self-aligning bearing 7 is communicated with the second lubricating cavity, and the other end face of the high-speed shaft self-aligning bearing is communicated with the inner cavity of the shell 1.

The forced lubrication device comprises a shaft end pump 4, the shaft end pump 4 is installed at the top of the shell 1, and the shaft end pump 4 is connected with the top end of the low-speed shaft 3. An input port of the shaft end pump 4 is communicated with the middle lower part of the shell 1, and an output port of the shaft end pump 4 is simultaneously communicated with the first oil return groove 6 and the second oil return groove 5.

The shell 1 is further provided with a shaft sleeve 14, the shaft sleeve 14 is coaxially sleeved outside the low-speed shaft 3, the shaft sleeve 14 is located at the bottom of the low-speed shaft 3, and the shaft sleeve 14 is located on the upper side of the low-speed shaft self-aligning bearing 12 at the lower end of the low-speed shaft 3. The inner wall of the shaft sleeve 14 is provided with a plurality of annular grooves which are arranged at intervals along the inner wall of the shaft sleeve 14, so that an oil film is formed between the low-speed shaft 3 and the shaft sleeve 14, and the problem that the low-speed shaft 3 is easy to leak oil due to the fact that the crusher vibrates greatly and impacts the oil seal greatly is solved.

As shown in FIGS. 4-6: the input port of the shaft end pump 4 is communicated with the middle lower part of the shell 1 through an oil inlet pipe 16, and the output port of the shaft end pump 4 is simultaneously communicated with the first oil return groove 6 and the second oil return groove 5 through an oil outlet pipe 15.

In this embodiment, cooling device is drawer cooler 17, and drawer cooler 17 includes coil pipe and closing plate, and the input port and the delivery outlet of coil pipe are all installed on the closing plate, and the coil pipe stretches into in the casing 1, and the closing plate is connected with casing 1 detachable, and sealed the setting between closing plate and the casing 1 to rely on the circulating comdenstion water in the coil pipe to cool off the lubricating oil in the casing 1.

The top and bottom of the casing 1 are provided with drawer coolers 17, and in this embodiment, the top and bottom of the casing 1 are provided with four sets of drawer coolers 17 to ensure that the lubricating oil in the casing 1 is sufficiently cooled.

The top of the shell 1 is also connected with a safety valve 18, so that potential safety hazards caused by increased temperature and pressure in the shell 1 are avoided.

As shown in fig. 7: a mounting flange 19 is arranged in the middle of the shell 1, the mounting flange 19 is arranged coaxially with the low-speed shaft 3, and the mounting flange 19 is located in the middle of the shell 1 in the height direction.

An upper hanging lug 101 and a lower hanging lug 102 are arranged on the side portion of the shell 1, the upper hanging lug 101 and the lower hanging lug 102 are both arranged on the same side of the shell 1 with the mounting flange 19, the upper hanging lug 101 is arranged on the upper portion of the shell 1, the lower hanging lug 102 is arranged on the lower portion of the shell 1, and the upper hanging lug 101 and the lower hanging lug 102 are symmetrically arranged on the upper side and the lower side of the mounting flange 19. The upper hanging lugs 101 are symmetrically arranged on the left side and the right side of the mounting flange 19, the lower hanging lugs 102 are also symmetrically arranged on the left side and the right side of the mounting flange 19, the lower hanging lugs 102 are arranged right below the upper hanging lugs 101 on the corresponding sides, and the upper-lower symmetrical structure and the side-hanging mounting mode can meet various field mounting requirements.

This speed reducer for wheeled breaker is when using, high-speed shaft 2 drives low-speed shaft 3 and rotates, axle head pump 4 rotates along with low-speed shaft 3 is synchronous, the lubricating oil in axle head pump 4 extraction casing 1, and send into lubricating oil respectively in first oil return groove 6 and the second oil return groove 5, make lubricating oil enter into first lubricated intracavity through first oil return groove 6, lubricate two tapered roller bearings 8, the lubricating oil in the first lubricated intracavity is gone into casing 1 intracavity through the oil outlet, and take away the heat that tapered roller bearing 8 produced. Lubricating oil enters the second lubricating cavity through the second oil return groove 5 and enters the high-speed shaft self-aligning bearing 7 through one end of the high-speed shaft self-aligning bearing 7 so as to lubricate the high-speed shaft self-aligning bearing 7, and the lubricating oil flows into the inner cavity of the shell 1 through the other side of the high-speed shaft self-aligning bearing 7 and takes away heat generated by the high-speed shaft self-aligning bearing 7. The drawer cooler 17 cools the lubricant oil in the casing 1 to avoid the temperature of the lubricant oil in the casing 1 from being too high.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a speed reducer for wheeled crusher which characterized in that: including the speed reducer main part, cooling device and forced lubrication device, high-speed shaft (2) of speed reducer main part link to each other with the speed reducer main part through the bearing is rotatable, the bearing sets up in the lubrication cavity between speed reducer main part and high-speed shaft (2), forced lubrication device's input port links to each other with the well lower part of speed reducer main part, forced lubrication device's delivery outlet links to each other with one side in lubrication cavity, the opposite side in lubrication cavity is linked together with speed reducer main part inner chamber, cooling device sets up in the speed reducer main part.

2. A reducer for a wheel crusher according to claim 1, characterized in that: the bearing include tapered roller bearing (8) and high-speed axle self-aligning bearing (7), lubricated chamber is including the first lubricated chamber that holds tapered roller bearing (8) and the second lubricated chamber that holds high-speed axle self-aligning bearing (7), force lubricating arrangement's delivery outlet to be linked together with first lubricated chamber and second lubricated chamber simultaneously.

3. A reducer for a wheel crusher according to claim 2, characterized in that: the speed reducer main part in be provided with installation cover (9), installation cover (9) cover is established outside high-speed shaft (2) to form between installation cover (9) and high-speed shaft (2) first lubricated chamber, tapered roller bearing (8) are paired tapered roller bearing, are provided with inlet port (902) on installation cover (9), the one end and the delivery outlet of forced lubrication device of inlet port (902) are linked together, the other end sets up between two tapered roller bearing (8).

4. A reducer for a wheel crusher according to claim 1, characterized in that: the speed reducer main body is provided with an oil return groove, and an output port of the forced lubricating device is communicated with the lubricating cavity through the oil return groove.

5. A reducer for a wheel crusher according to any one of claims 1 to 4, characterized in that: the forced lubrication device comprises a shaft end pump (4), and the shaft end pump (4) is installed at the end part of the low-speed shaft (3) of the speed reducer main body.

6. A reducer for a wheel crusher according to claim 1, characterized in that: the top and the bottom of the speed reducer main body are both provided with a plurality of cooling devices.

7. A reducer for a wheel crusher according to claim 1 or 6, characterized in that: the cooling device is a drawer type cooler (17).

8. A reducer for a wheel crusher according to claim 1, characterized in that: the speed reducer is characterized by further comprising a shaft sleeve (14), wherein the shaft sleeve (14) is coaxially sleeved outside the low-speed shaft (3) of the speed reducer main body, the shaft sleeve (14) is located between the output end of the low-speed shaft (3) and the speed reducer main body, and a plurality of annular grooves are formed in the inner wall of the shaft sleeve (14) at intervals.

9. A reducer for a wheel crusher according to claim 1, characterized in that: the speed reducer is characterized by further comprising a mounting flange (19) mounted on the speed reducer main body, the mounting flange (19) and the low-speed shaft (3) of the speed reducer main body are coaxially arranged, and the mounting flange (19) is located in the middle of the height direction of the speed reducer main body.

10. A reducer for a wheel crusher according to claim 9, characterized in that: the mounting flange structure is characterized by further comprising an upper hanging lug (101) and a lower hanging lug (102), wherein the upper hanging lug (101) and the lower hanging lug (102) are symmetrically arranged on the upper side and the lower side of the mounting flange (19), the upper hanging lug (101) is symmetrically arranged on two sides of the mounting flange (19), the lower hanging lug (102) is symmetrically arranged on two sides of the mounting flange (19), and the upper hanging lug (101) is located right above the lower hanging lug (102) on the corresponding side.