CN117328868A - Running gear and coal-winning machine - Google Patents
Running gear and coal-winning machine Download PDFInfo
- Publication number
- CN117328868A CN117328868A CN202311491740.5A CN202311491740A CN117328868A CN 117328868 A CN117328868 A CN 117328868A CN 202311491740 A CN202311491740 A CN 202311491740A CN 117328868 A CN117328868 A CN 117328868A
- Authority
- CN
- China
- Prior art keywords
- meshing
- speed
- wheel
- oil
- mounting hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 239000003638 chemical reducing agent Substances 0.000 claims description 23
- 210000004907 gland Anatomy 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 18
- 238000005065 mining Methods 0.000 abstract description 12
- 239000003921 oil Substances 0.000 description 41
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/092—Endless track units; Parts thereof with lubrication means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/18—Tracks
- B62D55/20—Tracks of articulated type, e.g. chains
- B62D55/205—Connections between track links
- B62D55/21—Links connected by transverse pivot pins
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (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 traveling device and a coal mining machine, which belong to the technical field of coal mining machines, wherein the traveling device comprises a frame, a driving element, a transmission mechanism and a traveling mechanism are arranged on the frame, the traveling mechanism comprises a driving wheel, a driven wheel and a crawler belt formed by connecting a plurality of crawler plates end to end, the crawler belt comprises a meshing end and connecting ends positioned at two ends of the meshing end, connecting lugs which are staggered are arranged at two sides of the connecting end, a first mounting hole for accommodating a connecting pin is formed in the connecting lug, a weight reducing hole is formed in the end, far away from the meshing end, of the connecting end, a second mounting hole for accommodating a locking member is formed in the side wall of the weight reducing hole, the tail end of the locking member abuts against the connecting pin, and a meshing groove is formed in the middle of the meshing end and is meshed with the driving wheel and the driven wheel respectively.
Description
Technical Field
The invention belongs to the technical field of coal mining machines, and particularly relates to a traveling device and a coal mining machine.
Background
The coal mining machine is core equipment for mechanized coal mining of the coal mine, is matched with transportation equipment and supporting equipment in the coal mining process, and can realize high-efficiency output of coal. The coal mining machine can lighten the physical labor, improve the safety, achieve high yield, high efficiency and low consumption, and is widely applied to the coal mining process. The coal cutter walking part is an important component part of the coal cutter and mainly provides power for the walking of the coal cutter and is positioned at the tail end of a coal cutter walking system. The existing walking part mostly adopts a crawler belt, the crawler belt is composed of a plurality of crawler plates, convex teeth are arranged on the inner side surfaces of the crawler plates, the convex teeth are meshed with a driven wheel or a driving wheel for transmission, the convex teeth have high abrasion degree, and the use is easily affected by damage. The track shoe has a large weight, and the loads of the driving wheel and the driven wheel are increased.
Disclosure of Invention
Aiming at various defects in the prior art, a traveling device and a coal mining machine are provided to solve the technical problems of high abrasion degree and great self weight of a track shoe in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
in a first aspect, the invention provides a walking device, which comprises a frame, wherein a driving element, a transmission mechanism and a walking mechanism are arranged on the frame, and the driving element is in transmission connection with the walking mechanism through the transmission mechanism;
the running mechanism comprises a driving wheel, a driven wheel and a crawler belt formed by connecting a plurality of crawler plates end to end, wherein the crawler belt comprises a meshing end and connecting ends positioned at two ends of the meshing end, connecting lugs which are staggered are arranged on two sides of the connecting ends, a first mounting hole for accommodating a connecting pin is formed in each connecting lug, a lightening hole is formed in the end part, away from the meshing end, of each connecting end, a second mounting hole for accommodating a locking piece is formed in the side wall of each lightening hole, the tail end of each locking piece abuts against each connecting pin, and meshing grooves are formed in the middle of each meshing end and are respectively meshed with the driving wheel and the driven wheel.
The technical scheme is further characterized in that one side of the engagement end is provided with an engagement lug, a third mounting hole is formed in the engagement lug, and the third mounting hole and the center of the first mounting hole are in the same straight line.
The technical scheme is further characterized in that a plurality of ground grabbing teeth are arranged on the side face, in contact with the ground, of the track shoe, and the ground grabbing teeth are uniformly distributed along the length direction of the track shoe.
The technical scheme is further characterized in that 2 connecting pins are arranged on the same side of the track shoe, and the 2 connecting pins are located at different ends of the track shoe respectively.
The technical scheme is further characterized in that the end part of the wheel shaft of the driven wheel is provided with a gland, the gland is connected with the rack through a tensioning support, a first oil cavity is formed between the gland and the wheel shaft, a shaft sleeve is sleeved on the periphery of the wheel shaft, a sealing seat is arranged between the shaft sleeve and the driven wheel, a second oil cavity is formed between the sealing seat, the shaft sleeve and the driven wheel, and the first oil cavity is communicated with the second oil cavity.
The technical scheme is further characterized in that the gland is provided with an oil injection hole and an air vent, the oil injection hole is respectively communicated with the first oil cavity and the second oil cavity through an oil injection channel, and the air vent is communicated with the first oil cavity.
The technical scheme is that the transmission mechanism comprises a speed reducer high-speed end and a speed reducer low-speed end, the driving element, the speed reducer high-speed end, the speed reducer low-speed end and the driving wheel are sequentially in transmission connection, and the driving element is connected with the support element between the machine frames.
The technical scheme further sets up to, the reduction gear high-speed end includes high-speed end casing and drive assembly, drive assembly is located the inside of high-speed end casing, be equipped with visual level gauge and oil inlet on the high-speed end casing, oil inlet and main oil pump intercommunication.
The technical scheme is further that the low-speed end of the speed reducer adopts a secondary planetary speed reducing structure, a primary annular gear is in transmission connection with the driving wheel, the driving wheel is provided with a secondary annular gear, a primary planet carrier is in transmission connection with a secondary sun gear, and the secondary planet carrier is fixedly connected with the frame through a supporting cover.
In a second aspect, the invention further provides a coal mining machine, which comprises the travelling device.
The beneficial effects of the invention are as follows:
through setting up the lightening hole, when guaranteeing track shoe intensity, greatly reduced the holistic weight of track shoe, alleviate the action wheel and follow the load of driving wheel, mesh mutually through setting up meshing groove and action wheel, follow the driving wheel, the meshing transmission realizes track operation, reduces the degree of wear of track shoe, through setting up the second mounting hole on the lateral wall in lightening hole, the terminal of retaining member is spacing with the connecting pin, the retaining member is located the lightening hole, avoids the retaining member to receive the exogenic action and damage.
Drawings
FIG. 1 is a front view of a running gear employed in an embodiment of the present invention;
FIG. 2 is a top view of a running gear employed in an embodiment of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is an isometric view of a track shoe employed in an embodiment of the present invention;
FIG. 5 is a schematic view of a ground engaging tooth employed in an embodiment of the present invention;
FIG. 6 is an assembled view of a driven wheel and tensioning bracket as employed in an embodiment of the present invention;
FIG. 7 is a cross-sectional view B-B of FIG. 6;
FIG. 8 is a schematic illustration of a transmission employed in an embodiment of the present invention;
fig. 9 is a cross-sectional view of fig. 8C-C.
In the accompanying drawings: 100-frame, 200-driving element, 300-transmission mechanism, 400-running mechanism, 500-supporting element, 600-supporting wheel, 700-tensioning bracket and 800-main oil pump;
301-visual liquid level meter, 302-high speed end of speed reducer, 303-low speed end of speed reducer, 304-high speed end shell, 305-oil inlet, 306-first shaft assembly, 307-second shaft assembly, 308-third shaft assembly, 309-fourth shaft assembly, 310-fifth shaft assembly, 311-first-stage sun gear, 312-first-stage planet carrier, 313-first-stage annular gear, 314-second-stage sun gear, 315-second-stage planet carrier and 316-supporting cover;
401-track, 402-driven wheel, 403-driving wheel, 404-engaging end, 405-connecting end, 406-connecting lug, 407-engaging lug, 408-first mounting hole, 409-third mounting hole, 410-lightening hole, 411-second mounting hole, 412-transverse tooth, 413-splayed tooth, 414-engaging groove, 415-guiding protrusion, 416-wheel axle, 417-shaft sleeve, 418-sealing seat, 419-gland, 420-first oil cavity, 421-second oil cavity.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, and based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without making creative efforts should fall within the scope of protection of the present application. In addition, directional words such as "upper", "lower", "left", "right", and the like, as used in the following embodiments are merely directions with reference to the drawings, and thus, the directional words used are intended to illustrate, not to limit, the invention.
According to an embodiment of the present invention, referring to fig. 1 to 5, a walking device is provided, and includes a frame 100, a driving element 200, a transmission mechanism 300 and a walking mechanism 400 are disposed on the frame 100, and the driving element 200 is in transmission connection with the walking mechanism 400 through the transmission mechanism 300;
the running mechanism 400 comprises a driving wheel 403, a driven wheel 402 and a track 401 formed by connecting a plurality of track shoes end to end, the track shoes 401 comprise a meshing end 404 and connecting ends 405 positioned at two ends of the meshing end 404, connecting lugs 406 which are staggered are arranged on two sides of the connecting ends 405, first mounting holes 408 for containing connecting pins are formed in the connecting lugs 406, lightening holes 410 are formed in the end portions, away from the meshing end 404, of the connecting ends 405, second mounting holes 411 for containing locking pieces are formed in the side walls of the lightening holes 410, the tail ends of the locking pieces abut against the connecting pins, meshing grooves 414 are formed in the middle of the meshing end 404, and the meshing grooves 414 are respectively meshed with the driving wheel 403 and the driven wheel 402.
Meanwhile, the frame 100 is provided with the supporting wheel 600 to further lighten the load of the driving wheel 403 and the driven wheel 402, the meshing groove 414 is arranged to mesh with the driving wheel 403 and the driven wheel 402, the meshing transmission realizes the operation of the crawler 401, the abrasion degree of the crawler is reduced, the second mounting hole 411 is arranged on the side wall of the lightening hole 410, the tail end of the locking piece is limited by the connecting pin, and the locking piece is positioned in the lightening hole 410 to avoid the damage of the locking piece due to the external force.
Specifically, a gap is formed between the adjacent connecting lugs 406, and the gap is matched with the connecting lugs 406 to realize engagement and splicing among a plurality of track shoes, so that the connection among the track shoes is more compact.
In the running device of the present embodiment, referring to fig. 1 to 5, an engaging lug 407 is disposed on one side of the engaging end 404, and a third mounting hole 409 is formed on the engaging lug 407, where the third mounting hole 409 and the center of the first mounting hole 408 are on the same straight line.
The third mounting hole 409 and the center of the first mounting hole 408 are on the same straight line, so as to ensure the mounting alignment of the connecting pin and avoid the damage of the connecting pin due to stress concentration.
Specifically, the ends of the connecting lug 406 and the engaging lug 407 are arc-shaped, so that friction between the track shoes is reduced, and relative rotation between the track shoes is facilitated.
In the running device of the embodiment, referring to fig. 1 to 5, a side surface of the track shoe, which contacts with the ground, is provided with a plurality of ground grabbing teeth, and the ground grabbing teeth are uniformly distributed along the length direction of the track shoe.
It should be noted that, the ground grabbing teeth include horizontal teeth 412 and splayed teeth 413, the horizontal teeth 412 of a plurality are distributed along a straight line parallel to the length direction of the track shoe, the splayed teeth 413 are located at the end of the track shoe, and by setting the horizontal teeth 412 and the splayed teeth 413, the friction force between the track shoe and the ground is improved, the ground grabbing force is increased, and the running stability of the track 401 is ensured.
In the running device of the present embodiment, referring to fig. 1 to 5, 2 connecting pins are disposed on the same side of the track shoe, and the 2 connecting pins are respectively located at different ends of the track shoe.
It should be noted that, through setting up two connecting pins, convenient dismantlement and equipment. Simultaneously, the retaining member sets up perpendicularly to the connecting pin, sets up the position of second mounting hole 411 according to the length of connecting pin, makes the terminal of retaining member and connecting pin butt carry out axial spacing, guarantees track shoe connection stability.
In the running device of the present embodiment, referring to fig. 1 to 5, guide protrusions 415 are disposed on two sides of the engagement groove 414, and the guide protrusions 415 limit the gear teeth of the driving wheel 403 and the driven wheel 402, so as to ensure the engagement effect.
In the running gear of the present embodiment, referring to fig. 1 to 7, a gland 419 is disposed at an end of a wheel shaft 416 of the driven wheel, the gland 419 is connected with the frame 100 through a tensioning bracket 700, a first oil cavity 420 is formed between the gland 419 and the wheel shaft 416, a shaft sleeve 417 is sleeved on a periphery of the wheel shaft 416, a sealing seat 418 is disposed between the shaft sleeve 417 and the driven wheel 402, a second oil cavity 421 is formed between the sealing seat 418, the shaft sleeve 417 and the driven wheel 402, and the first oil cavity 420 is communicated with the second oil cavity 421.
It should be noted that, the first oil chamber 420 and the second oil chamber 421 are communicated to form a closed oil path, which increases the oil filling space and can fully ensure the lubrication effect. When the driven wheel 402 rotates, lubricating oil circulates in the first oil cavity 420 and the second oil cavity 421, so that the shaft sleeve 417 is better lubricated, friction between the shaft sleeve 417 and the wheel shaft 416 is reduced, the service life of the driven wheel 402 is prolonged, and replacement cost is reduced.
Specifically, the shaft sleeve 417 is rotatably connected with the axle 416, the shaft sleeve 417, the sealing seat 418 and the driven wheel 402 rotate synchronously, the gland 419 is rotatably connected with the sealing seat 418, and the gland 419 is fixedly connected with the axle 416, and meanwhile, a floating seal is arranged between the gland 419 and the sealing seat 418. In operation, the axle 416 is stationary and the driven wheel 402 rotates.
In the running device of the present embodiment, referring to fig. 1, the gland 419 is provided with an oil filling hole and an air vent, the oil filling hole is respectively communicated with the first oil cavity 420 and the second oil cavity 421 through an oil filling channel, and the air vent is communicated with the first oil cavity 420.
Specifically, the gland 419 and the inside of the axle 416 are provided with oil injection channels which are communicated, and at the same time, the oil injection holes and the air holes are provided with plugs.
Preferably, the oil filling hole and the air holes have the same structure, so that the plugs can be replaced in mounting positions.
In the running gear of the present embodiment, referring to fig. 1 to 9, the transmission mechanism 300 includes a high speed end 302 and a low speed end 303 of the speed reducer, the driving element 200, the high speed end 302 of the speed reducer, the low speed end 303 of the speed reducer, and the driving wheel 403 are sequentially connected in a transmission manner, and a supporting element 500 is disposed between the driving element 200 and the frame 100.
It should be noted that, the supporting element 500 between the driving element 200 and the frame 100 can effectively withstand the instant torque when the driving element 200 is started, and also solve the problem of cantilever of the high speed end 302 of the speed reducer.
In the running device of the present embodiment, referring to fig. 1 to 9, the high speed end 302 of the speed reducer includes a high speed end housing 304 and a transmission assembly, the transmission assembly is located inside the high speed end housing 304, a visual liquid level gauge 301 and an oil inlet 305 are disposed on the high speed end housing 304, and the oil inlet 305 is communicated with the main oil pump 800.
Specifically, the transmission assembly includes a first shaft assembly 306, a second shaft assembly 307, a third shaft assembly 308, a fourth shaft assembly 309, and a fifth shaft assembly 310 that are sequentially in transmission connection, wherein the first shaft assembly 306 is in transmission connection with the driving element 200, and the fifth shaft assembly 310 is in transmission connection with the power input end of the low speed end 303 of the speed reducer.
It should be noted that, the high speed end 302 of the speed reducer has a forced lubrication function, the angle of the high speed end 302 of the speed reducer is adjusted according to the actual space, when the high speed end 302 of the speed reducer forms a certain angle, the first shaft assembly 306 and the second shaft assembly 307 may not be lubricated, at this time, the main oil pump 800 may be started for forced lubrication, and meanwhile, the forced lubrication can reduce the oil temperature.
In the running gear of the present embodiment, referring to fig. 1 to 9, the low-speed end 303 of the speed reducer adopts a secondary planetary reduction structure, a primary ring gear 313 is in driving connection with the driving wheel 403, the driving wheel 403 has a secondary ring gear, a primary planet carrier 312 is in driving connection with a secondary sun gear 314, and the secondary planet carrier 315 is fixedly connected with the frame 100 through a support cover 316.
Specifically, the connection between the primary annular gear 313 and the driving wheel 403 does not adopt a traditional bolt and pin connection mode, adopts a square circumference limiting mode, is simple and reliable in connection, and can avoid the risk brought by loosening of bolts. Meanwhile, the connection mode between the secondary planet carrier 315 and the support cover 316 adopts a square head structure, so that the centering and power transmission can be realized.
It should be noted that, the secondary planet carrier 315 is connected to the frame 100 and is fixed and not rotated, and at this time, the secondary planetary reduction structure is converted into a fixed-axis gear train, which has one degree of freedom. After being input through the primary sun gear 311, the power is output in two paths, one path is output to the secondary sun gear 314 through the primary planet carrier 312, and then is transmitted to the driving wheel 403 through the secondary planet gears; the other path is transmitted to the first-stage annular gear 313 through the first-stage planetary gear, and as the first-stage annular gear 313 is connected with the driving wheel 403, namely is output to the driving wheel 403, the two paths of output are output together after being collected by the driving wheel 403. That is, by adopting the two-stage closed planetary transmission mechanism, the two-stage annular gears are fixed together to jointly bear power output, and as the one-stage annular gear 313 can share a part of output torque, the structural size of the two-stage annular gear can be reduced, and the two-stage planetary transmission mechanism has the advantages of compact structure, large transmission ratio, strong bearing capacity, high transmission efficiency and the like.
According to an embodiment of the invention, a coal mining machine is provided, which comprises the traveling device.
The foregoing detailed description of the invention has been presented for purposes of illustration and description, but is not intended to limit the scope of the invention, i.e., the invention is not limited to the details shown and described.
Claims (10)
1. The walking device is characterized by comprising a frame, wherein a driving element, a transmission mechanism and a walking mechanism are arranged on the frame, and the driving element is in transmission connection with the walking mechanism through the transmission mechanism;
the running mechanism comprises a driving wheel, a driven wheel and a crawler belt formed by connecting a plurality of crawler plates end to end, wherein the crawler belt comprises a meshing end and connecting ends positioned at two ends of the meshing end, connecting lugs which are staggered are arranged on two sides of the connecting ends, a first mounting hole for accommodating a connecting pin is formed in each connecting lug, a lightening hole is formed in the end part, away from the meshing end, of each connecting end, a second mounting hole for accommodating a locking piece is formed in the side wall of each lightening hole, the tail end of each locking piece abuts against each connecting pin, and meshing grooves are formed in the middle of each meshing end and are respectively meshed with the driving wheel and the driven wheel.
2. The walking device of claim 1, wherein an engaging lug is provided on one side of the engaging end, and a third mounting hole is provided on the engaging lug, and the third mounting hole and the center of the first mounting hole are on the same straight line.
3. The walking device of claim 1, wherein the side surface of the track shoe, which is in contact with the ground, is provided with a plurality of ground gripping teeth, and the ground gripping teeth are uniformly distributed along the length direction of the track shoe.
4. The running gear of claim 2, wherein the same side of the track shoe is provided with 2 connecting pins, the 2 connecting pins being located at different ends of the track shoe, respectively.
5. The walking device according to claim 1, wherein a gland is arranged at the end part of a wheel shaft of the driven wheel, the gland is connected with the frame through a tensioning bracket, a first oil cavity is formed between the gland and the wheel shaft, a shaft sleeve is sleeved on the periphery of the wheel shaft, a sealing seat is arranged between the shaft sleeve and the driven wheel, a second oil cavity is formed among the sealing seat, the shaft sleeve and the driven wheel, and the first oil cavity is communicated with the second oil cavity.
6. The walking device of claim 5, wherein the gland is provided with an oil filling hole and an air vent, the oil filling hole is respectively communicated with the first oil cavity and the second oil cavity through oil filling channels, and the air vent is communicated with the first oil cavity.
7. The running gear of claim 1, wherein the transmission mechanism comprises a high speed end of a speed reducer and a low speed end of the speed reducer, the driving element, the high speed end of the speed reducer, the low speed end of the speed reducer and the driving wheel are sequentially in transmission connection, and the driving element is supported by the support element between the frame.
8. The walking device of claim 7, wherein the high-speed end of the speed reducer comprises a high-speed end shell and a transmission assembly, the transmission assembly is positioned inside the high-speed end shell, a visual liquid level gauge and an oil inlet are arranged on the high-speed end shell, and the oil inlet is communicated with the main oil pump.
9. The walking device of claim 8, wherein the low-speed end of the speed reducer adopts a secondary planetary speed reducing structure, a primary annular gear is in transmission connection with the driving wheel, the driving wheel is provided with a secondary annular gear, a primary planet carrier is in transmission connection with a secondary sun gear, and the secondary planet carrier is fixedly connected with the frame through a supporting cover.
10. A shearer loader comprising a running gear as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311491740.5A CN117328868A (en) | 2023-11-09 | 2023-11-09 | Running gear and coal-winning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311491740.5A CN117328868A (en) | 2023-11-09 | 2023-11-09 | Running gear and coal-winning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117328868A true CN117328868A (en) | 2024-01-02 |
Family
ID=89279421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311491740.5A Pending CN117328868A (en) | 2023-11-09 | 2023-11-09 | Running gear and coal-winning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117328868A (en) |
-
2023
- 2023-11-09 CN CN202311491740.5A patent/CN117328868A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20090058182A1 (en) | Endless track chain assembly with in situ replaceable wear parts | |
| CN117328868A (en) | Running gear and coal-winning machine | |
| CN206032444U (en) | Integral type elevating conveyor tail sprocket shaft group | |
| CN102502175A (en) | Scraper conveying device | |
| CN115123316B (en) | Driving wheel, driving assembly comprising same and transmission system | |
| CN101169037A (en) | Coal mining and digging machine | |
| CN214836328U (en) | Large-torque cutting transmission system of coal mining machine | |
| CN202156468U (en) | Lubrication crawler assembly | |
| CN115434703A (en) | Full-suspension cutting device and thin coal seam coal mining machine | |
| CN210050261U (en) | Compact type high-power fracturing planetary reducer | |
| CN202451807U (en) | Coaxial planetary gear box with integral frame | |
| CN111503226A (en) | Gear box and hard rock heading machine | |
| CN213770175U (en) | Split assembled chain wheel assembly | |
| CN215332819U (en) | Cutting transmission main body part with large torque output | |
| CN217874089U (en) | Novel speed reducer with conveniently-jointed driving shaft | |
| CN212774282U (en) | Extremely-thin coal seam coal mining machine traveling system and mounting structure thereof | |
| CN217977251U (en) | Transmission mechanism and coal mining machine with same | |
| CN220866330U (en) | Frequency conversion all-in-one driving device arranged parallel to scraper machine and scraper machine | |
| CN202441375U (en) | Small tooth difference type coal mining machine rocker | |
| CN220885726U (en) | Frequency conversion all-in-one driving device vertically arranged with scraper machine and scraper machine | |
| CN212449256U (en) | Can dismantle heavy scraper conveyor chain wheel structure of tooth | |
| CN216692100U (en) | Gear box for double-toothed roller screening crusher | |
| CN220845261U (en) | Compact hydraulic winch | |
| CN210661299U (en) | Loader gearbox steering pump power take-off spline lubricating structure | |
| CN220850588U (en) | Planet wheel structure for planetary speed reducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |