CN210454792U

CN210454792U - Mine riding wheel

Info

Publication number: CN210454792U
Application number: CN201921385760.3U
Authority: CN
Inventors: 许成满; 王宏喜; 占曙光
Original assignee: Anhui Magang Luohe Mine Co ltd
Current assignee: Anhui Magang Luohe Mine Co ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-05-05
Anticipated expiration: 2029-08-23

Abstract

The utility model discloses a mining riding wheel belongs to the mining field. To the relatively poor, lubricated complex operation and the lower problem of life of riding wheel internal seal among the prior art, the utility model provides a mining riding wheel, including the base, the base passes through the fixed axle with the riding wheel and is connected, be provided with antifriction bearing between fixed axle and the riding wheel, antifriction bearing is connected with bearing cap and bearing position sleeve respectively, and the bearing cap both sides all are provided with the recess, are provided with the skeleton oil blanket in the recess that is close to antifriction bearing one side, are provided with the sealing washer in the opposite side recess, and are provided with the oil filler point on the excircle of bearing cap. The utility model has the advantages that the framework oil seal and the sealing ring are respectively arranged on the two sides of the bearing cover, so that the whole sealing performance is better; an oil filling hole is formed in the excircle of the bearing cover, so that an oil filling pipeline is short, the oil filling operation of the rolling bearing is conveniently and quickly realized, and the lubrication of the rolling bearing is ensured in time; the whole structure is simple, the assembly, disassembly and maintenance are convenient, and the cost is effectively reduced.

Description

Mine riding wheel

Technical Field

The utility model relates to a mining field, more specifically say, relate to a mining riding wheel.

Background

At present, particularly in the underground mine industry, a large-scale mine generally adopts a bottom side dump type mine car underground, and a mine car unloading station matched with the mine car unloading station mainly adopts an entire row of horizontal riding wheels as a track for the running of the mine car; secondly, the maintenance is convenient; thirdly, the operation cost is low; many mine unloading stations all have the problem that the dust is big, remove dust difficultly, because the riding wheel structure is not sealed among the prior art, especially there is great clearance between bearing position sleeve and the bearing end cover, thereby dust and water stain very easily get into the bearing, lead to bearing lubrication inefficacy and move inflexibly, when the bearing rotates inflexibly, form dry friction between mine car wing and the riding wheel, lead to serious accidents such as mine car derailment very easily. Meanwhile, the service life of the riding wheel structure is short, the maintenance cost is high, the service life is about 30 days under the working condition that the field environment is slightly severe, and the maintenance frequency is high. In addition, the maintenance of the riding wheel structure is very troublesome, the maintenance mainly comprises the step of filling lubricating grease into the bearing, a lubricating pipeline of the riding wheel structure is designed on the shaft, the lubricating pipeline is required to be opened firstly, then the lubricating pipeline can be filled with the lubricating grease, the pipeline system is long, dust is easily accumulated and blocked, after the lubricating grease is filled, the shaft rear end cover is covered, the whole maintenance procedure at least needs 20 minutes, the consumed time is too long, and more manpower is consumed.

Corresponding improvement is also carried out aiming at the problems, for example, Chinese patent application No. CN201821060743.8, the publication date is 2019, 2, 25, the patent discloses a mine riding wheel which comprises single wheels and fixing pieces, wheel grooves are fixedly arranged between the single wheels, the outer surfaces of the wheel grooves are made of rubber materials, the noise generated in the using process of the riding wheel is reduced, through holes are fixedly arranged at the axle center positions in the single wheels and the wheel grooves, connecting shafts are inserted in the through holes, the outer surfaces of the connecting shafts are attached to the inner walls of the through holes, lubricants are coated on the inner walls of the through holes, the rotation of the single wheels and the wheel grooves is facilitated, the noise generated in the using process of the riding wheel is further reduced, a first fixing disc and a second fixing disc are fixedly connected to the two sides of the connecting shafts, fixing blocks are fixedly arranged on the outer sides of the second fixing discs, threaded holes are arranged in the, the fixing piece moves on the fixing column in the vertical direction, so that the height of the riding wheel can be conveniently adjusted. The disadvantages of the patent are that: the riding wheel is troublesome to maintain and has poor integral sealing performance.

If chinese patent application No. CN201320226933.3 again, the publication date is 2013 10 months 2 days, and this patent discloses a riding wheel of institutional advancement, including center pin and riding wheel, the cover is equipped with the bearing on the center pin, the one end of bearing is equipped with the skeleton oil blanket, is equipped with quiet ring on the skeleton oil blanket, with quiet ring correspondence connection has the rotating ring, the rotating ring with the connection face that quiet ring is connected is equipped with bellied waterproof ring, quiet ring with the connection face that the rotating ring is connected is equipped with waterproof ring groove correspondingly, quiet ring with be equipped with 0 type sealing washer between the rotating ring, it has waterproof nature good, effectively guarantees the characteristics that the bearing normally lubricates. The disadvantages of the patent are that: although the integral waterproof performance is better, the lubricating performance is poorer, and the maintenance is more complicated.

Disclosure of Invention

1. Technical problem to be solved

Poor, lubricated complex operation and the lower problem of life to riding wheel internal seal among the prior art, the utility model provides a mining riding wheel. The utility model has the advantages that the framework oil seal and the sealing ring are respectively arranged on the two sides of the bearing cover, so that the whole sealing performance is better, and dust and water stain are effectively isolated; the oil filling hole is formed in the excircle of the bearing cover, so that the situation that an oil filling hole and an oil groove are required to be formed in the bearing in the past is changed, an oil filling pipeline is short, and the lubricating of the rolling bearing is ensured in time by conveniently and quickly realizing the oil filling operation of the rolling bearing; overall structure is simple, and loading and unloading and maintenance are all comparatively convenient, effective reduce cost and life are longer.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

The mine riding wheel comprises a base, wherein the base is connected with a riding wheel body through a fixed shaft, a rolling bearing is arranged between the fixed shaft and the riding wheel body and is respectively connected with a bearing cover and a bearing positioning sleeve, grooves are formed in two sides of the bearing cover, a framework oil seal is arranged in a groove close to one side of the rolling bearing, a sealing ring is arranged in a groove on the other side of the bearing cover, and an oil filling hole is formed in the excircle of the bearing cover.

Furthermore, one side of the bearing cover close to the rolling bearing is provided with a boss for positioning an outer ring in the rolling bearing.

Furthermore, the number of the rolling bearings is two, and the two rolling bearings are connected into a whole to be connected with the riding wheel body.

Furthermore, the inner hole of the bearing positioning sleeve is in clearance fit with the fixed shaft, and the excircle of the bearing positioning sleeve is in interference fit with the sealing ring.

Furthermore, a step for positioning the sealing ring is arranged on the bearing positioning sleeve.

Furthermore, the oil filling hole is provided with a capped grease nipple, and the capped grease nipple is in threaded connection with the oil filling hole.

Furthermore, the number of the oil injection holes is two, and the two oil injection holes are symmetrically arranged on the excircle of the bearing cover.

Furthermore, one end of the fixed shaft close to the supporting wheel body is provided with a step, and the other end close to the base is provided with fine threads.

Furthermore, a front shaft end cover and a rear shaft end cover are respectively arranged at the front end and the rear end of the fixed shaft.

Furthermore, a plurality of reinforcing ribs are arranged on the base.

3. Advantageous effects

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

(1) the utility model discloses a be provided with the recess in bearing cap both sides, be provided with skeleton oil blanket and sealing washer in the recess respectively, the invasion and attack of water stain is effectively prevented to the sealing washer, guarantees the drying of antifriction bearing service environment; the whole sealing performance is good, and the problem of sealing of the rolling bearing is effectively solved; the oil filling hole is formed in the excircle of the bearing cover, so that the conventional oil filling hole and oil groove are formed in the bearing, an oil filling pipeline is short, and the lubricating of the rolling bearing is ensured in time by conveniently and quickly realizing the oil filling operation of the rolling bearing; the whole structure is simple, the assembly, disassembly and maintenance are convenient, and the production cost is effectively reduced;

(2) the utility model discloses be provided with the boss in one side that the bearing cap is close to antifriction bearing, this boss is used for positioning antifriction bearing's outer lane for antifriction bearing's installation and dismantlement are all comparatively convenient and play the limiting displacement to antifriction bearing's outer lane, have effectively avoided antifriction bearing's removal; the two rolling bearings are oppositely arranged to form a whole and are connected with the riding wheel body, and the two rolling bearings are oppositely arranged to ensure that the whole rolling bearing can bear larger radial force and smaller axial force, so that the service life of the whole device is effectively ensured;

(3) the utility model discloses well bearing position sleeve realizes the location to the antifriction bearing inner circle, is clearance fit between the hole of bearing position sleeve and the fixed axle, makes things convenient for the installation and the dismantlement of bearing position sleeve, improves work efficiency; because the sealing ring is a rubber part with larger elasticity, the excircle of the bearing positioning sleeve is in interference fit with the sealing ring; the bearing positioning sleeve is provided with a step for limiting the sealing ring, so that the sealing ring is convenient to mount and dismount;

(4) the utility model discloses be provided with the grease nipple of wearing the cap on the oil filler point, slowly pour into grease such as lubricating oil into antifriction bearing through wearing the cap grease nipple and go, avoided directly pouring into the condition that the grease causes the grease seepage into the oil filler point, guarantee that the grease can enter into antifriction bearing smoothly and go; the capped grease nipple is in threaded connection with the oil filling hole, so that the replacement and the maintenance are convenient; the number of the oil injection holes is two, the two oil injection holes are symmetrically arranged on the outer circle of the bearing cap, the original oil injection position is changed, the oil injection and lubrication are more convenient, the previous processes of oil injection by disassembling the shaft rear end cover and installing the shaft rear end cover are omitted, the oil injection time is saved by at least 20 minutes each time, and the time and the labor are saved;

(5) the step is arranged at one end of the fixed shaft close to the supporting wheel body, the step is convenient to install and fixes the rolling bearing, and the positioning and limiting effects are realized on the rolling bearing; one end close to the base is provided with fine threads, so that the connection between the fixed shaft and the base is facilitated, the connection relation is stable, the applicable environment is wide, and the excellent performance is still realized in a severe environment;

(6) the front end cover and the rear end cover are respectively arranged at the front end and the rear end of the fixed shaft, and the front end cover plays a role in protecting the rolling bearing and effectively prevents dust or water stain from entering the rolling bearing; the rear end cover of the shaft plays the roles of sealing, dust prevention and beauty; the base is provided with a plurality of reinforcing ribs, so that the strength of the base is ensured; the integral structure is convenient and fast to lubricate and maintain, simple to maintain, applicable to severe environments, long in service life and at least 10 times longer in service life than the prior art.

Drawings

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

FIG. 2 is a schematic view of the assembly of the carrier body and the rolling bearing;

fig. 3 is a perspective view of the present invention;

FIG. 4 is a schematic view of a bearing cap structure;

fig. 5 is a schematic structural view of a bearing retainer ring.

The reference numbers in the figures illustrate:

1. a base; 2. a fixed shaft; 3. a riding wheel body; 4. a rolling bearing; 5. a bearing cap; 6. framework oil seal; 7. v-shaped rotary seal; 8. a bearing positioning sleeve; 9. wearing a cap grease nipple; 10. locking the round nut; 11. a shaft rear end cap; 12. a fastener; 13. the axle front end cap.

Detailed Description

The invention will be further described with reference to specific embodiments and drawings.

Example 1

As shown in fig. 1, 2, 3, 4 and 5, the mine riding wheel comprises a base 1, wherein the base 1 is installed on a foundation beam and fixed by adopting high-strength bolts; specifically, the base 1 is a casting part, and the material is generally gray cast iron; when the requirement on the bearing is higher, the bearing can be made of steel castings or nodular cast iron; preferably, the base 1 is provided with a plurality of reinforcing ribs, the reinforcing ribs are triangular and arranged on the base 1, so that the overall strength of the base 1 is increased, and the bearing capacity of the base 1 is stronger; the base 1 is connected with the riding wheel body 3 through the fixed shaft 2, the fixed shaft 2 is made of 45# high-quality steel because the fixed shaft 2 is a non-rotating part but needs to bear larger radial shearing force, and the surface roughness of the fixed shaft 2 is not more than 1.6, so that the normal use of the fixed shaft 2 is ensured, and the service life of the fixed shaft is prolonged; the supporting wheel body 3 is a steel casting, and the hardness of the wheel surface required to be subjected to surface heat treatment reaches more than HRC45, so that the wheel surface has certain wear resistance; a rolling bearing 4 is arranged between the fixed shaft 2 and the riding wheel body 3, the outer ring of the rolling bearing 4 is in interference fit with the inner circle of the riding wheel body 3, the rolling bearing 4 is respectively connected with a bearing cover 5 and a bearing positioning sleeve 8, the bearing cover 5 positions the outer ring of the rolling bearing 4, and the bearing positioning sleeve 8 positions the inner ring of the rolling bearing 4; the whole installation of the rolling bearing 4 is more convenient, the whole rolling bearing 4 is limited, and the movement of the rolling bearing 4 is avoided; grooves are formed in two sides of the bearing cover 5, and a framework oil seal 6 is arranged in the groove close to one side of the rolling bearing 4, preferably, the framework oil seal 6 is a TC-type framework oil seal, so that lubricating oil can be well sealed, dust can be prevented, and the structure is simple; a sealing ring is arranged in the groove on the other side, preferably, the sealing ring is a V-shaped rotary seal 7 which has higher waterproof and dustproof capabilities, so that the sealing performance of the whole device is higher, the V-shaped rotary seal 7 is a sealing ring with an outward-expanding lip edge on the side surface, the inner diameter of the sealing ring is sleeved on the outer diameter of a rotating part and is in interference fit with the rotating part, the sealing ring rotates together with the rotating part during working, and the lip edge is attached to a non-rotating sealing plane to play a role in sealing and waterproofing; and the excircle of the bearing cover 5 is provided with an oil filling hole, so that lubricating oil can be conveniently and timely injected into the rolling bearing 4, and the rotating smoothness between parts is ensured.

The utility model discloses a be provided with the recess in bearing cap 5 both sides, be provided with skeleton oil blanket 6 and sealing washer in the recess respectively, the invasion and attack of water stain are effectively prevented to the sealing washer, guarantee the drying of antifriction bearing 4 service environment; the double sealing protection of the framework oil seal 6 and the sealing ring ensures that the whole sealing performance is good, and the invasion of external dust and water stain is avoided, so that the service life of the rolling bearing 4 is effectively prolonged; the oil filling hole is formed in the outer circle of the bearing cover 5, so that the conventional oil filling hole and oil groove are formed in the bearing, an oil filling pipeline is short, and the lubricating operation of the rolling bearing 4 is conveniently and quickly realized, so that the rolling bearing 4 is lubricated in time; the whole structure is simple, the assembly, disassembly and maintenance are convenient, and the production cost is effectively reduced; the service life of the riding wheel in the prior art is only about 3 months under severe working conditions, the maintenance is frequent, and the cost is high; mining riding wheel life-span then reach more than 24 months, still can move in a flexible way, average life improves more than 10 times, non-maintaining basically, the cost reduction of very big degree increases.

Example 2

Basically as in embodiment 1, preferably, a boss for positioning the outer ring of the rolling bearing 4 is disposed on one side of the bearing cover 5 close to the rolling bearing 4, and the boss is used for positioning the outer ring of the rolling bearing 4, so that the rolling bearing 4 is convenient to mount and dismount, the outer ring of the rolling bearing 4 is limited, and the rolling bearing 4 is effectively prevented from moving; the rolling bearings 4 are two in number, the two rolling bearings 4 are connected into a whole and are connected with the riding wheel body 3, in the embodiment, the rolling bearings 4 are cylindrical roller bearings, the two cylindrical roller bearings are oppositely installed on the riding wheel body 3, the two cylindrical roller bearings are oppositely installed, so that the whole rolling bearings 4 can bear large radial force and can bear small axial force, and the service life of the whole device is effectively guaranteed.

Example 3

Basically as in embodiment 1, preferably, the inner hole of the bearing positioning sleeve 8 is in clearance fit with the fixed shaft 2, so that the bearing positioning sleeve 8 is convenient to mount and dismount, and the working efficiency is improved; because the sealing ring is a rubber part and has larger elasticity, the excircle of the bearing positioning sleeve 8 is in interference fit with the sealing ring; the bearing positioning sleeve 8 is provided with a step for positioning the sealing ring, so that the sealing ring is convenient to mount and dismount, and the sealing ring is convenient to maintain; furthermore, the smooth finish of the outer surface of the bearing positioning sleeve 8, the outer surface of the bearing cover 5 and the surface of the sealing ring is not more than 1.6, so that the problems of damage to the sealing ring or untight and compact sealing are avoided, and the overall sealing performance is better.

Example 4

Basically as in embodiment 1, preferably, the oil injection hole is provided with a capped grease nipple 9, the capped grease nipple 9 is a grease nipple provided with a brim, the brim is opened when the grease nipple is needed, and the brim is covered to seal the grease nipple when the grease nipple is not needed, so that dust or water stain is prevented from entering the grease nipple and further entering the rolling bearing 4; the capped grease nipple 9 is in threaded connection with the oil filling hole, grease such as lubricating oil is slowly injected into the rolling bearing 4 through the capped grease nipple 9, the condition that grease leakage is caused by directly injecting the grease into the oil filling hole is avoided, the grease can smoothly enter the rolling bearing 4, the lubrication reliability of the rolling bearing 4 is effectively guaranteed, and the overall dustproof and waterproof performance is improved; the oiling pipeline shorter, the lubricating oil of injection can be directly in the ball in antifriction bearing 4 for the oiling is lubricated more convenient, has saved the process that need dismantle axle rear end cap refuel and installation axle rear end cap in the past, at least 20 minutes are practiced thrift to the oiling time at every turn, more laborsaving saves time, the routine maintenance of being convenient for. Furthermore, the number of the oil injection holes is two, and the two oil injection holes are symmetrically arranged on the outer circle of the bearing cover 5, so that the oil injection timeliness is facilitated, and lubricating oil can rapidly enter the rolling bearing 4.

Example 5

Basically as in embodiment 1, preferably, a step is provided at one end of the fixed shaft 2 close to the idler body 3, and the step is convenient for installation and fixes the rolling bearing 4, so as to position and limit the rolling bearing 4; the other end close to the base 1 is provided with fine threads, which is beneficial to the connection between the fixed shaft 2 and the base 1, so that the connection relationship is more stable, the application environment is wide, and the severe environment still has excellent performance; in the embodiment, the fixed shaft 2 and the base 1 are locked by the two locking round nuts 10, the rotational flexibility of the riding wheel body 3 is adjusted by rotating the locking round nuts 10, the riding wheel body 3 can freely rotate without large axial clearance, the two locking round nuts 10 are connected in series for locking and fixing for preventing loosening, and the locking round nuts 10 are fine threads, so that the anti-loosening effect is good; the front end and the rear end of the fixed shaft 2 are respectively provided with a shaft front end cover 13 and a shaft rear end cover 11, the shaft front end cover 13 is manufactured by processing a 3-10 mm thin plate and is fixed on the supporting wheel body 3 through an outer hexagon bolt, so that the whole device is protected, and dust or water stain is effectively prevented from entering the rolling bearing 4; the rear shaft end cover 11 is fixed on the base 1 through a fastening piece 12 to play a role in sealing, dust prevention and attractiveness, the fastening piece 12 can be a fastening piece 12 such as a fastening bolt or a fastening screw, and the fastening piece 12 is simple in structure and good in fastening performance.

The examples of the utility model are only right the utility model discloses a preferred embodiment describes, and not right the utility model discloses design and scope are injectd, do not deviate from the utility model discloses under the prerequisite of design idea, the field engineering technical personnel are right the utility model discloses a various deformation and improvement that technical scheme made all should fall into the protection scope of the utility model.

Claims

1. The utility model provides a mining riding wheel, includes base (1), and base (1) is connected its characterized in that through fixed axle (2) with riding wheel body (3): be provided with antifriction bearing (4) between fixed axle (2) and bearing wheel body (3), antifriction bearing (4) are connected with bearing cap (5) and bearing position sleeve (8) respectively, and bearing cap (5) both sides all are provided with the recess, are provided with skeleton oil blanket (6) in the recess that is close to antifriction bearing (4) one side, are provided with the sealing washer in the opposite side recess, and are provided with the oil filler point on the excircle of bearing cap (5).

2. The mining idler of claim 1, characterized in that: and a boss for positioning the outer ring in the rolling bearing (4) is arranged on one side of the bearing cover (5) close to the rolling bearing (4).

3. The mining idler according to claim 2, characterized in that: the rolling bearings (4) are two in number, and the two rolling bearings (4) are connected into a whole and connected with the supporting wheel body (3).

4. The mining idler of claim 1, characterized in that: the inner hole of the bearing positioning sleeve (8) is in clearance fit with the fixed shaft (2), and the excircle of the bearing positioning sleeve (8) is in interference fit with the sealing ring.

5. The mining idler of claim 4, wherein: the bearing positioning sleeve (8) is provided with a step for positioning the sealing ring.

6. The mining idler of claim 1, characterized in that: the oil filling hole is provided with a capped grease nipple (9), and the capped grease nipple (9) is in threaded connection with the oil filling hole.

7. The mining idler of claim 6, characterized in that: the number of the oil injection holes is two, and the two oil injection holes are symmetrically arranged on the excircle of the bearing cover (5).

8. The mining idler of claim 1, characterized in that: one end of the fixed shaft (2) close to the riding wheel body (3) is provided with a step, and the other end close to the base (1) is provided with fine threads.

9. The mine riding wheel according to claim 1 or 8, characterized in that: the front end and the rear end of the fixed shaft (2) are respectively provided with a shaft front end cover (13) and a shaft rear end cover (11).

10. The mining idler of claim 1, characterized in that: the base (1) is provided with a plurality of reinforcing ribs.