CN110159705B - Walking part of cavity separating structure - Google Patents
Walking part of cavity separating structure Download PDFInfo
- Publication number
- CN110159705B CN110159705B CN201910444324.7A CN201910444324A CN110159705B CN 110159705 B CN110159705 B CN 110159705B CN 201910444324 A CN201910444324 A CN 201910444324A CN 110159705 B CN110159705 B CN 110159705B
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- oil
- driven gear
- side wall
- shaft
- shell
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- 238000005065 mining Methods 0.000 claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims description 40
- 230000003068 static effect Effects 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 17
- 239000011148 porous material Substances 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 8
- 239000011707 mineral Substances 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 175
- 238000005461 lubrication Methods 0.000 description 15
- 230000005540 biological transmission Effects 0.000 description 11
- 238000005192 partition Methods 0.000 description 9
- 230000001050 lubricating effect Effects 0.000 description 6
- 210000000078 claw Anatomy 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
- E21C29/22—Propulsion of machines for slitting or completely freeing the mineral from the seam by wheels, endless tracks or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/06—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with parallel axes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0469—Bearings or seals
- F16H57/0471—Bearing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention relates to a walking part with a cavity-separating structure, an oil pool is arranged on a shell, a connecting plate is fixed on the shell, the lower part of the connecting plate and the front side wall of the lower part of the oil pool enclose an open cavity, a driving shaft is supported on the shell through a bearing, a driving gear is externally meshed with a driven gear, the walking wheel and the driven gear are coaxially fixed, the front part and the rear part are respectively and rotatably connected on the same supporting shaft through the bearing, the supporting shafts are arranged on the front side wall and the rear side wall of the connecting plate and the oil pool in a penetrating way, the driving gear and the driven gear are both positioned in the cavity of the oil pool, the walking wheel is positioned in the open cavity, the front side wall and the rear side wall of a guide slipper are sleeved and supported on the supporting shafts, and gaps are reserved between the guide slipper and the corresponding surfaces of the connecting plate and the lower part of the oil pool. The invention can solve the problems of serious abrasion loss of the parts of the running part and short service life of the whole equipment when the drum-type mining machine is used for mining high-hardness and high-abrasiveness mineral aggregate.
Description
Technical Field
The invention relates to a travelling part of a roller mining machine, which is particularly suitable for occasions with serious abrasion of a gear transmission piece and a friction sliding piece under the open transmission state of the travelling part of the mining machine, and belongs to the technical field of underground mining machinery.
Background
Fig. 14 shows a conventional drum miner running gear 9 with a drive wheel 91, a running wheel assembly 92, a bearing seal 93, oil holes 94 and a top oil box 95. The driving wheel drives the travelling wheel assembly to rotate, the driving wheel 91 and the travelling wheel assembly 92 are arranged in a transmission cavity of a shell communicated with the environment of outside mineral aggregate dust, and mineral aggregate abrades the tooth surface of the transmission piece seriously. The top small oil box 94 is a small oil pool which is arranged below the top plane of the shell and above the driving wheel and forms an independent oil cavity, and has small oil containing volume, difficult adjustment of oil dripping speed and incapability of effectively lubricating the transmission gear. When the mining machine is used for mining high-hardness and high-abrasion mineral aggregate, the transmission gears and the like are particularly severely worn, the service life is very low, the overall service life of the travelling part is seriously influenced, and the production cost is greatly increased and the mining benefit is reduced due to the loss of other equipment parts caused by abrasion of abrasive particles.
In order to solve the problems, the industry has proposed to increase lubrication on the transmission gear of the travelling part of the mining machine, in practice, due to lower oil dripping lubrication efficiency, the oil dripping lubrication can only slightly relieve the abrasion of the transmission part of the open travelling part for the running environment that the cavity of the travelling part of the short type machine body is filled with mineral aggregate dust, and the abrasion problem can not be fundamentally solved. Especially, the fixed shaft transmission gear, mineral aggregate enters the tooth surface to be meshed, and abnormal stress is brought to a transmission piece bearing, a shaft and the like, so that the whole service life of the walking part is greatly influenced.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the walking part with the cavity-dividing structure, which can solve the problems of serious abrasion loss of parts of the walking part and short service life of the whole equipment when the drum-type mining machine is used for mining high-hardness and high-abrasion mineral aggregate.
The main technical scheme of the invention is as follows:
the utility model provides a walking part of minute chamber structure, includes casing, drive shaft, drive gear, driven gear, walking wheel, direction piston shoes and connecting plate, be equipped with the oil bath on the casing, the upper portion detachably of connecting plate is fixed on the casing, the lower part of connecting plate encloses into open cavity with the oil bath lower part front side wall, the drive shaft is supported through two sets of bearings from front to back on the casing, drive gear fixed mounting is in on the drive shaft, drive gear and driven gear external gearing, walking wheel and driven gear coaxial fixation, and the front and back are respectively through bearing swivelling joint on same back shaft, the back shaft runs through in proper order from front to back on connecting plate and the oil bath's the front and back lateral wall, the rear end of back shaft inserts the fuselage of mining machine and with fuselage fixed connection, drive gear and driven gear all are located in the oil bath cavity, the walking wheel is located open cavity, drive shaft and back shaft pass the lateral wall of oil bath all are equipped with the seal, the front and back lateral wall of direction piston shoes all overlaps and supports on the back shaft on the back side wall of back side wall, the back side wall of direction piston shoes is located the clearance between the front and back side wall of the back piston shoes, the back side wall is left the clearance between the front and back side of the piston shoes.
Install the valve casing on the casing, be equipped with the valve casing oil duct in the valve casing, install adjusting screw on the valve casing, observe stifled and oil pipe, oil pipe's one end fixed mounting be in on the valve casing, and with the export of valve casing oil duct communicates with each other, oil pipe's the other end overhang in the top of walking wheel, adjusting screw with observe the pore channel at stifled place all with the valve casing oil duct communicates with each other, wherein the pore channel at adjusting screw place with the tie point of valve casing oil duct is higher than the export of valve casing oil duct, observe the pore channel at stifled place with the tie point of valve casing oil duct is less than the export of valve casing oil duct.
The shell is internally provided with a shell oil duct, an inlet of the shell oil duct is communicated with the oil pool, an outlet of the shell oil duct is communicated with an inlet of the valve shell oil duct, and a plane of the outlet of the shell oil duct is in butt joint with and sealed with a plane of the inlet of the valve shell oil duct.
The oil tank is characterized in that a top oil level, a middle oil level and a lower oil level are further arranged on the shell, the middle oil level is equal to the outlet of the oil duct of the shell, the top oil level is located at the top of the oil tank cavity in height, and the lower oil level is consistent with the lower part of the driving shaft in height.
One mounting structure of the travelling wheel and the driven gear may be: the rear end of walking wheel with the front end of driven gear is walking wheel jack catch and driven gear jack catch respectively, walking wheel jack catch and driven gear jack catch axial cartridge is fixed, walking wheel and driven gear are respectively through bearing radial support on same transition cover, the coaxial cover of transition cover is established and is fixed on the back shaft, be equipped with static seal between transition cover and the back shaft, the place ahead of walking wheel upper bearing frame hole still is equipped with sealing member mounting groove, through installing rotary seal in the sealing member mounting groove realize rotary seal between walking wheel and the transition cover, the rear of driven gear upper bearing frame hole is the outer lane keeps off the shoulder, keeps the open state in radial between outer lane keeps off the shoulder and the transition cover, the lower part base member of oil bath sets up front side open structure, and opening part sets up to separate the hole and separates the terminal surface, a baffle respectively with separation hole and terminal surface are as radial and axial locating surface fixed mounting on the lower part base member of oil bath, be equipped with the baffle hole, be equipped with the baffle static seal between baffle and the hole, walking wheel separates the separation hole and driven gear phase connection with the baffle Kong Zhoukong with the driven gear and separate hole of jack catch and driven gear, the radial seal between the jack catch and the driven gear adopts the radial seal between the baffle.
The other mounting structure of the travelling wheel and the driven gear is as follows: the rear end face of the travelling wheel is butted with the front end face of the driven gear, the travelling wheel and the driven gear are positioned by utilizing a positioning pin and are fastened by axially arranged screws penetrating through the positioning pin, the travelling wheel and the driven gear are respectively and radially supported on the same transition sleeve through bearings, the transition sleeve is coaxially sleeved and fixed on the supporting shaft, a static seal is arranged between the transition sleeve and the supporting shaft, a seal mounting groove is further formed in front of a travelling wheel upper bearing seat hole, rotary seal is realized between the travelling wheel and the transition sleeve by mounting a rotary seal in the seal mounting groove, an outer ring shoulder is arranged behind the driven gear upper bearing seat hole, an opening state is kept in the radial direction between the outer ring shoulder and the transition sleeve, the joint of the travelling wheel and the driven gear is mounted in cooperation with the front side wall shaft hole of the lower part of an oil pool, and the rear outer shaft face of the travelling wheel body is mounted in cooperation with the front side wall shaft hole of the lower part of the oil pool and is rotatably sealed.
In any of the above mounting structures, the static seal between the transition sleeve and the support shaft is preferably at least provided with a front portion and a rear portion, and is respectively close to the front end and the rear end of the transition sleeve.
The beneficial effects of the invention are as follows:
through the special design to casing and driving medium structure, formed confined oil pool cavity, all set up drive shaft, drive gear, driven gear in the oil pool that is equipped with fluid, avoided the mineral aggregate to the adverse effect of dead axle transmission gear's meshing, furthest protected the driving medium, consequently can solve the problem that the driving medium wearing and tearing are serious and life-span is low more thoroughly.
All bearings are comprehensively lubricated through oil in an oil pool, so that the service life of the bearings is guaranteed, a complex sealing structure arranged for realizing grease lubrication of part of bearings in the existing running part structure is avoided, a lubrication channel structure arranged in a supporting shaft for realizing oil lubrication of part of bearings is also avoided, the strength of the supporting shaft is improved, the structure of the running part is simplified, and the working reliability of the running part is also correspondingly improved.
The oil can be directly led out from the oil pool to lubricate the travelling wheels, and the oil dripping speed of the adopted specially designed lubricating structure is adjustable, so that the blockage of the oil dripping opening can be prevented, the lubricating structure is simplified, the oil dripping lubricating effect is improved, and the abrasion of the travelling wheels can be obviously reduced.
Drawings
FIG. 1 is a front view of one embodiment of the present invention;
FIG. 2 is a rotational cross-sectional view of A-A of FIG. 1;
fig. 3 is a front view of the housing (without a partition) of the present invention;
FIG. 4 is a B-B rotational cross-sectional view of FIG. 3;
FIG. 5 is a cross-sectional view of a cell structure, a gear connection structure, a support connection structure of the present invention;
FIG. 6 is a cross-sectional view of a gear connection in accordance with the present invention;
FIG. 7 is a cross-sectional view of a drive connection in accordance with the present invention;
FIG. 8 is a front view of a web of the present invention;
FIG. 9 is an enlarged front view of the road wheel lubrication of the present invention;
FIG. 10 is a cross-sectional (longitudinal) view of C-C of FIG. 9;
FIG. 11 is a D-D cross-sectional view (transverse) of FIG. 9;
FIG. 12 is a front view of another embodiment of the present invention;
FIG. 13 is a rotational cross-sectional view of A-A of FIG. 12;
fig. 14 is a schematic structural view of a conventional drum miner traveling unit.
Description of the drawings: 1. a housing; 11. end faces of the separation cavities; 12. a cell opening; 13. a connecting end face; 14. positioning holes; 15. an outer cambered surface; 16. the lower rear side wall of the oil pool; 161. the rear side surface of the rear side wall of the lower part of the oil tank; 162. the front side surface of the rear side wall of the lower part of the oil tank; 17. a valve housing mounting hole; 171. a housing oil passage; 172. a rod hole; 173. a drip chamber; 181. a top hole; 182. a drive shaft hole; 183. a walking shaft hole; 184. ventilation holes; 185. oil mark holes; 186. an oil drain hole; 19. an oil sump chamber;
2. a cell structure; 21. a partition plate; 22. a screw; 23. the baffle plate is rotationally sealed; 24. static sealing of the partition board;
3. a gear connection structure; 30. a transition sleeve; 31. a lubrication channel; 32. rotating the seal; 33. sealing the rear part; 34. front static seal; 351. a first static seal; 352. a second static seal; 36. a driven gear; 361. driven gear claw; 37. a walking wheel; 371. a travelling wheel claw; 38. a screw; 39. a bearing;
4. a support connection structure; 41. a connecting plate; 411. the front side of the connecting plate; 412. the rear side of the connecting plate; 413. a connecting ear hole; 414. a connecting plate pin hole; 415. connecting plate screw holes; 416. a main connection hole; 42. a connecting screw; 43. a positioning pin; 44. a support shaft; 441. a flat shaft head; 442. positioning the shaft section; 443. an optical axis section; 45. a long screw; 46. a guide shoe; 461. a front waist-shaped hole; 462. a rear waist-shaped hole; 463. a front inclined plane; 464. a rear inclined plane; 465. an intrados of the slipper; 47. a drive connection assembly; 471. a drive shaft; 472. a bearing; 473. a drive gear;
5. an oil chamber accessory group; 51. a top cover plate; 511. an oil filling port; 52. a ventilation plug; 53. top oil level; 531. medium oil level; 532. an oil mark is arranged; 54. discharging oil and plugging; 55. a side roof panel;
6. a walking wheel lubrication structure; 61. a valve housing; 62. a valve housing fastening screw; 63. sealing the valve shell; 64. an adjusting screw; 65. observing the blockage; 66. an oil pipe; 67. an oil drop port; 68. a squeeze valve; 69. an oil passage of the valve housing;
7. a walking part connecting piece;
9. existing drum miner walks; 91. a driving wheel; 92. a road wheel assembly; 93. sealing a bearing; 94. an oil hole; 95. a top small oil box;
0. a fuselage.
Detailed Description
The invention discloses a walking part with a cavity-separating structure, which is shown in fig. 1-13 and comprises a shell 1, a driving shaft 471, a driving gear 473, a driven gear 36, a walking wheel 37, a guide sliding shoe 46 and a connecting plate 41. The oil tank is arranged on the shell, the upper part of the connecting plate 41 is detachably fixed on the shell, and the lower part of the connecting plate and the front side wall of the lower part of the oil tank enclose an open cavity. The driving shaft 471 is supported on the housing by a front and rear set of bearings 472, and the driving gear is fixedly mounted on the driving shaft. The driving gear 473 is externally engaged with the driven gear 36. The travelling wheel 37 and the driven gear 36 are coaxially fixed, and are rotatably connected to the same support shaft 44 through bearings 39. The supporting shaft penetrates through the connecting lug holes 413 of the connecting plate and the front side wall and the rear side wall of the oil pool from front to back in sequence, the supporting shaft is supported and installed on the connecting plate and the shell, and the rear end of the supporting shaft is inserted into the machine body 0 of the mining machine and fixedly connected with the machine body. The driving gear 473 and the driven gear 36 are both positioned in the sump chamber 19 and immersed in the lubricating oil. The road wheels 37 are located in the open chamber outside the sump chamber. Seals are provided where the drive shaft 471 and the support shaft 44 pass through the side wall of the oil sump. The front side wall and the rear side wall of the guide sliding shoe are sleeved and supported on the supporting shaft. The front side wall of the guide sliding shoe is positioned in front of the connecting plate, and a gap is reserved between the front side wall and the connecting plate; the rear side wall of the guide shoe is located behind the lower rear side wall 16 of the oil sump with a gap therebetween, and the front side 411 of the connecting plate 41 and the rear side 161 of the lower rear side wall of the oil sump provide a limit for deflection of the guide shoe 46. And a sufficient gap is reserved between the outer bottom surface of the lower part of the oil pool and the corresponding surface of the guide sliding shoe so as to ensure the normal swing of the guide sliding shoe around the axis.
The lower portion of the oil pool may be semi-cylindrical with sufficient clearance between its outer arcuate surface 15 and the shoe inner arcuate surface 465.
The upper portion of casing is equipped with connection terminal surface 13, is equipped with locating hole 14 and screw hole on the connection terminal surface, be equipped with connecting plate pinhole 414 and connecting plate screw hole 415 on the connecting plate corresponds, the connecting plate passes through locating pin 43 location, connecting screw 42 fixes the upper portion at the casing, connection terminal surface 13 and locating hole 14 provide axial and radial installation benchmark for connecting plate 41 respectively. In this embodiment, the oil pool is configured such that the lower portion thereof is recessed rearward from the upper portion thereof, so that the open chamber and the lower portion of the oil pool are arranged in parallel.
The drive shaft 471, the drive gear 473 and the bearing 472 form the drive connection assembly 47, which is lubricated by immersing in an oil bath. The connection plate 41, the support shaft 44, the guide shoe 46, the drive connection assembly 47, the drive shaft 471, the bearing 472 and the drive gear 473 constitute the main parts of the support connection structure 4 for providing support for the road wheels and the guide shoe, connection with the fuselage and a space for the dismounting operation.
The top of casing is equipped with the roof hole 181, the roof hole constitutes the top opening of oil bath, can observe and install and remove the relevant part of running gear through the roof hole, can add oil to the oil bath cavity. The top hole is closed off by a fixed top cover plate 51 to the oil sump chamber 19. An oil filling port 511 may be provided on the top cover plate to facilitate filling the oil sump with oil.
In the drawing, the bearing of the driving shaft is supported on the driving shaft hole 182, the front end of the driving shaft does not exceed the front side wall of the upper part of the oil pool, the rear end of the driving shaft extends out of the rear side wall of the upper part of the oil pool, the driving shaft penetrates through the oil pool and is sealed with the oil pool, and the end of the driving shaft, which is positioned behind the oil pool, is provided with an external spline and is a power input end.
Front waist-shaped holes 461 and rear waist-shaped holes 462 are respectively arranged on the front side wall and the rear side wall of the guide sliding shoe, and the front side wall and the rear side wall of the guide sliding shoe are respectively supported on the supporting shaft through the front waist-shaped holes and the rear waist-shaped holes. The rear side surface of the front side wall and the front side surface of the rear side wall of the guide sliding shoe are respectively provided with a front inclined surface 463 and an inclined surface 464, so that interference with the connecting plate 41 and the rear side wall 16 at the lower part of the oil pool when the guide sliding shoe deflects in the left-right horizontal plane can be avoided, and normal deflection of the guide sliding shoe 46 in the horizontal direction is ensured.
In the embodiment shown in the drawings, the supporting shaft comprises an optical axis section 443, a positioning shaft section 442 and a flat shaft head 441 from front to back, the traveling wheel and the driven gear are supported on the optical axis section, the optical axis section is matched with the shaft holes of the front and rear side walls of the connecting plate and the oil pool, and a static seal is arranged between the optical axis section and the traveling shaft hole 183 on the rear side wall of the oil pool. The positioning shaft section and the flat shaft head are embedded into the machine body 0 of the mining machine, and the supporting shaft is fixedly connected with the machine body of the mining machine through long screws 45 penetrating through the supporting shaft in the axial direction.
The housing is preferably provided with a valve housing 61 having a valve housing oil passage 69 therein, and is provided with an adjusting screw 64, an observation plug 65, and a rigid oil pipe 66. One end of the oil pipe is fixedly arranged on the valve shell and communicated with an outlet of the oil duct of the valve shell, and the other end of the oil pipe is suspended above the travelling wheel. The other end port of the oil pipe is an oil drop port 67, and is preferably arranged right above the middle position in the width direction of the travelling wheel. The pore canal where the adjusting screw and the observing plug are located is communicated with the valve shell oil duct, wherein the connection point of the pore canal where the adjusting screw is located and the valve shell oil duct is higher than the outlet of the valve shell oil duct, and the connection point of the pore canal where the observing plug is located and the valve shell oil duct is lower than the outlet of the valve shell oil duct. When the oil dripping speed is regulated, the observation plug 65 is unscrewed, the regulating screw 64 is rotated, meanwhile, the oil leakage speed at the installation hole of the observation plug is observed, the regulating screw 64 is rotated until the oil leakage speed reaches the required oil dripping speed, and the observation plug 65 is assembled again. The valve shell, the valve shell oil duct, the oil pipe, the adjusting screw and the observation plug form a walking wheel lubricating structure 6 for the oil drip lubrication of the walking wheel. The road wheel lubrication 6 may have an oil sump as its source of oil.
Preferably, a housing oil passage 171 is provided in the housing, and an inlet of the housing oil passage communicates with the oil sump so as to directly introduce lubricating oil from the oil sump. The outlet of the shell oil duct is arranged on the surface of the shell, which is attached to the valve shell, after the valve shell is installed, the outlet of the shell oil duct is communicated with the inlet of the valve shell oil duct, and the plane of the outlet of the shell oil duct is in butt joint with the plane of the inlet of the valve shell oil duct and is provided with a valve shell seal 63.
In order to ensure the necessary space for the drip lubrication, the housing is provided with a housing mounting hole 17 for accommodating the valve housing 61 and the oil pipe 66. The valve housing mounting holes 17 are preferably provided near the top of the running gear. The valve housing mounting hole 17 includes a stem hole 172 for receiving an oil pipe and an oil drip chamber 173, and the valve housing mounting hole 17 further includes the housing oil passage when it is required to use the housing as a mating structure of an oil drip lubrication structure. The valve housing is secured to the housing by a valve housing fastening screw 62.
The shell can be further provided with an air-permeable plug 52, an oil level gauge and an oil drain plug 54, wherein the air-permeable plug is arranged in an air hole 184 at the top of the oil tank, the oil drain plug is arranged in an oil drain hole 186 at the bottom of the oil tank, and the oil level gauge is arranged on the front side wall of the oil tank.
The oil level comprises a top oil level 53, a middle oil level 531 and a lower oil level 532, wherein the height of the middle oil level is basically consistent with that of an outlet of the oil duct of the shell, and the middle oil level is used for prompting the shortage of oil of the oil lubrication of the travelling wheel; the top oil level gauge is arranged in an oil level gauge hole 185 on the shell and is positioned at the top of the oil tank chamber in height so as to prompt the full position of the oil tank oil; the lower oil level is basically consistent with the height of the lower part of the driving shaft and is used for prompting the defect of oil in the oil pool caused by leakage and the like.
The valve housing is also provided with a squeezing valve 68, a pore canal where the squeezing valve is positioned is communicated with the valve housing oil duct, and a connecting point of the pore canal where the squeezing valve is positioned and the valve housing oil duct is equal to the outlet of the valve housing oil duct in height. The extrusion valve is provided with a valve core and a pressure spring which are connected with each other, and the pressure spring and the valve core are sequentially arranged in corresponding pore channels from inside to outside. Squeezing the squeeze valve 68 can unblock the partial blockage of the oil drip port 67.
The top cover plate 51, the ventilation plug 52, the oil level 53 and the oil drain plug 54 form an oil cavity accessory group 5.
The travelling wheel, the driven gear and the supporting shaft can be installed in the following two modes:
mode one: as shown in fig. 1-6, the rear end of the travelling wheel and the front end of the driven gear are respectively a travelling wheel claw 371 and a driven gear claw 361, which are axially inserted and fixedly connected by a screw 38, so that the travelling wheel and the driven gear are formed as a whole. The road wheel and the driven gear are each supported radially on the same transition sleeve 30 by means of a bearing 39, which is coaxially sleeved and fixed on the support shaft 44. The transition sleeve and the guide sliding shoe have the possibility of axial movement relative to the support shaft. The bearing for supporting the travelling wheel and the bearing for supporting the driven gear are axially limited by the aid of the inner spacing ring, and the travelling wheel and the driven gear are axially limited by the aid of the outer spacing ring. And a static seal 351 is arranged between the transition sleeve and the support shaft, and a static seal 351 is arranged between the outer spacer ring and the travelling wheel and the driven gear respectively. And a sealing element mounting groove is further formed in front of the travelling wheel upper bearing seat hole, and travelling wheel rotary sealing is realized between the travelling wheel and the transition sleeve by mounting a rotary sealing element 32 in the sealing element mounting groove. The rear part of the bearing seat hole on the driven gear is provided with an outer ring shoulder, and the outer ring shoulder and the transition sleeve are kept in an open (i.e. kept at a non-blocking interval) state in the radial direction and serve as a lubrication channel 31, so that oil in the oil pool cavity enters the bearing cavity.
The lower base body of the oil tank is provided with a front side opening structure, the opening is provided with a separation cavity hole 12 and a separation cavity end face 11, a baffle plate 21 takes the separation cavity hole and the separation cavity end face as radial and axial positioning surfaces respectively, and the baffle plate is fixedly arranged on the lower base body of the oil tank through a screw 22. And a baffle hole is formed in the baffle plate. A partition static seal 24 is arranged between the partition and the partition holes. The junction that walking wheel jack catch and driven gear jack catch are connected with baffle Kong Zhoukong cooperation installation, the axle section between the wheel body of driven gear and driven gear jack catch with the baffle hole adopts rotary seal 23 in radial, separates oil bath cavity 19 and open cavity, allows gear connection structure 3 to follow axial small scale drunkenness simultaneously. The partition 21, the screws 22, the partition rotary seal 23 and the partition static seal 24 constitute a compartment structure 2.
Mode two: as shown in fig. 12 and 13, the rear end face of the travelling wheel is butted with the front end face of the driven gear, and the rear end face of the travelling wheel is positioned by using positioning pins, namely, two ends of each positioning pin are respectively matched with pin holes on the two end faces, and the rear end face of the travelling wheel and the front end face of the driven gear are fastened by axially arranged screws penetrating through the positioning pins, so that the travelling wheel and the driven gear are formed into a whole. The travelling wheel and the driven gear are respectively and radially supported on the same transition sleeve through bearings, and the transition sleeve is coaxially sleeved and fixed on the supporting shaft 44. The axial limit of the bearing inner ring is carried out by utilizing a boss in the middle of the transition sleeve between the bearing for supporting the travelling wheel and the bearing for supporting the driven gear, and the axial limit of the bearing outer ring is carried out by utilizing the inner spacer. And a static seal is arranged between the transition sleeve and the support shaft. The sealing element mounting groove is further formed in front of the travelling wheel upper bearing seat hole, rotary sealing is achieved between the travelling wheel and the transition sleeve by mounting a rotary sealing element in the sealing element mounting groove, the outer ring shoulder is arranged behind the driven gear upper bearing seat hole, and the outer ring shoulder and the transition sleeve are kept in an open (namely, kept at intervals and not blocked) state in the radial direction and serve as lubricating channels, so that oil in the oil pool cavity enters the bearing cavity. And a second static seal 352 is adopted between the front end of the driven gear and the outer ring of the corresponding bearing. The rear outer shaft surface of the wheel body of the travelling wheel is matched with the shaft hole of the front side wall of the lower part of the oil pool and is provided with rotary seal.
In the second mode, the side top of the shell is provided with a mounting hole so as to facilitate the mounting of the driven gear. In use, the mounting hole is closed by a side roof panel 55.
No matter which mounting mode is adopted by the driven gear and the travelling wheel, the static seal between the transition sleeve and the supporting shaft is preferably at least provided with a front static seal 34 and a rear static seal 33 respectively, and the front static seal 34 is used as an auxiliary seal of the rear static seal 33 and can increase the reliability of the seal. The travelling wheel 37, the driven gear 36, the screw 38, the bearing 39, the transition sleeve 30 and the related static seal and dynamic seal form the gear connecting structure 3. The associated static and dynamic seals are used to ensure the containment of the sump and to prevent oil from flowing out of the sump chamber. The support shaft is used for supporting the gear connecting structure 3 and the guide sliding shoe 46. The rear side 412 of the connecting plate 41 and the front side 162 of the rear side wall of the lower part of the oil sump provide a limit for the axial play of the gear connection 3.
The shell and the connecting plate are correspondingly provided with a plurality of main connecting holes 416, and the walking part of the cavity-dividing structure penetrates through the main connecting holes 416 through the walking part connecting piece 7 to fasten the connecting plate and the shell on the machine body of the mining machine together so as to improve the reliability of connection and the stability of the structure.
The front and rear directions referred to herein correspond to the left and right directions, respectively, from the perspective of fig. 2.
Claims (11)
1. The utility model provides a walking portion of chamber structure divides, includes casing, drive shaft, drive gear, driven gear, walking wheel and direction skid shoe, its characterized in that: the mining machine comprises a shell, and is characterized by further comprising a connecting plate, wherein an oil pool is arranged on the shell, the upper part of the connecting plate is detachably fixed on the shell, the lower part of the connecting plate and the front side wall of the lower part of the oil pool enclose an open cavity, a driving shaft is supported on the shell through a front bearing and a rear bearing, the driving gear is fixedly arranged on the driving shaft, the driving gear is externally meshed with a driven gear, a travelling wheel and the driven gear are coaxially fixed, the front side wall and the rear side wall of the guide shoe are respectively rotatably connected on the same supporting shaft through bearings, the supporting shaft sequentially penetrates through the connecting plate and the front side wall and the rear side wall of the oil pool from front to rear, the rear end of the supporting shaft is inserted into a machine body of the mining machine and is fixedly connected with the machine body, the driving gear and the driven gear are both positioned in the oil pool cavity, the travelling wheel is positioned in the open cavity, the positions of the driving shaft and the supporting shaft penetrate through the side walls of the oil pool are respectively provided with a seal, the front side wall and the rear side wall of the guide shoe are respectively sleeved and supported on the supporting shaft, the front side wall of the guide shoe is positioned in front of the connecting plate and the same supporting shaft, a gap is reserved between the rear side wall of the guide shoe and the lower side wall of the guide shoe, and the bottom surface of the guide shoe is positioned at the bottom surface of the corresponding gap between the rear side wall and the bottom surface of the guide shoe.
2. The walking unit of the divided-cavity structure according to claim 1, wherein: the top of casing is equipped with the roof hole, the roof hole constitutes the top opening of oil bath, roof hole department is through fixed lamina tecti closure oil bath cavity.
3. The walking unit of the divided-cavity structure according to claim 2, wherein: the supporting shaft is sequentially provided with an optical axis section, a positioning shaft section and a flat shaft head from front to back, the travelling wheel and the driven gear are supported on the optical axis section, the optical axis section is matched with the connecting plate and the shaft holes of the front side wall and the rear side wall of the oil pool, the positioning shaft section and the flat shaft head are embedded into the machine body of the mining machine, and the supporting shaft is fixedly connected with the machine body of the mining machine through long screws penetrating through the supporting shaft in the axial direction.
4. A walking unit of a divided structure as defined in claim 3, wherein: install the valve casing on the casing, be equipped with the valve casing oil duct in the valve casing, install adjusting screw on the valve casing, observe stifled and oil pipe, oil pipe's one end fixed mounting be in on the valve casing, and with the export of valve casing oil duct communicates with each other, oil pipe's the other end overhang in the top of walking wheel, adjusting screw with observe the pore channel at stifled place all with the valve casing oil duct communicates with each other, wherein the pore channel at adjusting screw place with the tie point of valve casing oil duct is higher than the export of valve casing oil duct, observe the pore channel at stifled place with the tie point of valve casing oil duct is less than the export of valve casing oil duct.
5. The walking part of the cavity-dividing structure according to claim 4, wherein: the shell is internally provided with a shell oil duct, an inlet of the shell oil duct is communicated with the oil pool, an outlet of the shell oil duct is communicated with an inlet of the valve shell oil duct, and a plane of the outlet of the shell oil duct is in butt joint with and sealed with a plane of the inlet of the valve shell oil duct.
6. The walking unit of the divided-cavity structure according to claim 5, wherein: the oil tank is characterized in that a top oil level, a middle oil level and a lower oil level are further arranged on the shell, the middle oil level is equal to the outlet of the oil duct of the shell, the top oil level is located at the top of the oil tank cavity in height, and the lower oil level is consistent with the lower part of the driving shaft in height.
7. The walking unit of the divided-cavity structure according to claim 6, wherein: and the valve shell is also provided with an extrusion valve, a pore canal where the extrusion valve is positioned is communicated with the valve shell oil duct, and the connecting point of the pore canal where the extrusion valve is positioned and the valve shell oil duct is equal to the outlet of the valve shell oil duct.
8. The walking unit of the split-cavity structure according to claim 1, 2, 3, 4, 5, 6 or 7, wherein: the rear end of walking wheel with the front end of driven gear is walking wheel jack catch and driven gear jack catch respectively, walking wheel jack catch and driven gear jack catch axial cartridge is fixed, walking wheel and driven gear are respectively through bearing radial support on same transition cover, the coaxial cover of transition cover is established and is fixed on the back shaft, be equipped with static seal between transition cover and the back shaft, the place ahead of walking wheel upper bearing frame hole still is equipped with sealing member mounting groove, through installing rotary seal in the sealing member mounting groove realize rotary seal between walking wheel and the transition cover, the rear of driven gear upper bearing frame hole is the outer lane keeps off the shoulder, keeps the open state in radial between outer lane keeps off the shoulder and the transition cover, the lower part base member of oil bath sets up front side open structure, and opening part sets up to separate the hole and separates the terminal surface, a baffle respectively with separation hole and terminal surface are as radial and axial locating surface fixed mounting on the lower part base member of oil bath, be equipped with the baffle hole, be equipped with the baffle static seal between baffle and the hole, walking wheel separates the separation hole and driven gear phase connection with the baffle Kong Zhoukong with the driven gear and separate hole of jack catch and driven gear, the radial seal between the jack catch and the driven gear adopts the radial seal between the baffle.
9. The walking unit of the split-cavity structure according to claim 1, 2, 3, 4, 5, 6 or 7, wherein: the rear end face of the travelling wheel is butted with the front end face of the driven gear, the travelling wheel and the driven gear are positioned by utilizing a positioning pin and are fastened by axially arranged screws penetrating through the positioning pin, the travelling wheel and the driven gear are respectively and radially supported on the same transition sleeve through bearings, the transition sleeve is coaxially sleeved and fixed on the supporting shaft, a static seal is arranged between the transition sleeve and the supporting shaft, a seal mounting groove is further formed in front of a travelling wheel upper bearing seat hole, rotary seal is realized between the travelling wheel and the transition sleeve by mounting a rotary seal in the seal mounting groove, an outer ring shoulder is arranged behind the driven gear upper bearing seat hole, an opening state is radially maintained between the outer ring shoulder and the transition sleeve, and the rear outer shaft face of a wheel body of the travelling wheel is mounted in a matched mode with a front side wall shaft hole of the lower portion of an oil pool and is rotationally sealed.
10. The walking unit of the divided-cavity structure according to claim 8, wherein: the static seal between the transition sleeve and the support shaft is at least provided with a front part and a rear part, and is respectively close to the front end and the rear end of the transition sleeve.
11. The walking unit of the divided-cavity structure according to claim 9, wherein: the static seal between the transition sleeve and the support shaft is at least provided with a front part and a rear part, and is respectively close to the front end and the rear end of the transition sleeve.
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| CN201910444324.7A CN110159705B (en) | 2019-05-27 | 2019-05-27 | Walking part of cavity separating structure |
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| CN201910444324.7A CN110159705B (en) | 2019-05-27 | 2019-05-27 | Walking part of cavity separating structure |
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| CN110159705B true CN110159705B (en) | 2024-04-09 |
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| CN210135207U (en) * | 2019-05-27 | 2020-03-10 | 天地科技股份有限公司上海分公司 | Walking part with cavity structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103958343B (en) * | 2011-11-18 | 2016-02-10 | 瓦锡兰芬兰有限公司 | Turn to angle of rake lubrication method for arranging and the lubrication used of marine ship are arranged |
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| JP2004301329A (en) * | 2003-03-31 | 2004-10-28 | Minebea Co Ltd | Injection method and injector of lubricant in hydrodynamic pressure bearing |
| CN201954227U (en) * | 2011-01-27 | 2011-08-31 | 安徽山河矿业装备股份有限公司 | Lubricating device for travelling case of coal mine underground coal mining machine |
| CN203051722U (en) * | 2012-12-25 | 2013-07-10 | 太重煤机有限公司 | Novel gear lubricating device of walking part of coal cutter |
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| CN110159705A (en) | 2019-08-23 |
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