CN118167408A - Coal mine tunnel moving device - Google Patents
Coal mine tunnel moving device Download PDFInfo
- Publication number
- CN118167408A CN118167408A CN202410387941.9A CN202410387941A CN118167408A CN 118167408 A CN118167408 A CN 118167408A CN 202410387941 A CN202410387941 A CN 202410387941A CN 118167408 A CN118167408 A CN 118167408A
- Authority
- CN
- China
- Prior art keywords
- frame body
- telescopic
- telescopic oil
- coal mine
- cab apron
- 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
- 239000003245 coal Substances 0.000 title claims abstract description 25
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Handcart (AREA)
Abstract
The coal mine tunnel moving device of the invention comprises: the first frame body and the second frame body are in a first direction, the width direction of the first frame body and the width direction of the second frame body are in a second direction, the first frame body and the second frame body are connected in a sliding mode in the first direction, the top surface of the first frame body and the top surface of the second frame body are used for placing equipment, and travelling wheels are arranged at the bottoms of the first frame body and the second frame body; the fixed part of the first telescopic oil cylinder is connected with the first frame body, and the telescopic part of the first telescopic oil cylinder is connected with the second frame body; the first cab apron and the second cab apron, first cab apron rotationally establishes the one end that keeps away from the second support body at first support body, and the second cab apron rotationally establishes the one end that keeps away from first support body at the second support body. Therefore, the coal mine roadway moving device has the advantages of high applicability and convenience in moving conveying equipment.
Description
Technical Field
The invention relates to the technical field of roadway moving transportation, in particular to a coal mine roadway moving device.
Background
Coal mines generally comprise a roadway, a pit, a mining face and the like, and equipment is transported by a transportation mobile device after the roadway is excavated, so that the mining can be smoothly carried out. The frame body structure of the mobile device in the related art is simpler, the bearing capacity and the bearing capacity are limited, and when a roadway with a larger gradient or a pit is encountered, the mobile device is difficult to drag by a tractor, so that the transportation capacity is poor.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. For this purpose, the embodiment of the invention provides a coal mine tunnel moving device.
The coal mine roadway moving device provided by the embodiment of the invention comprises the following components:
The device comprises a first frame body and a second frame body, wherein the length direction of the first frame body and the length direction of the second frame body are both in a first direction, the width direction of the first frame body and the width direction of the second frame body are both in a second direction, the first frame body and the second frame body are connected in a sliding mode in the first direction, the top surface of the first frame body and the top surface of the second frame body are used for placing equipment, travelling wheels are arranged at the bottoms of the first frame body and the second frame body, and any two of the first direction, the second direction and the up-down direction are mutually perpendicular;
The fixed part of the first telescopic oil cylinder is connected with the first frame body, and the telescopic part of the first telescopic oil cylinder is connected with the second frame body;
The first cab apron and the second cab apron are rotatably arranged at one end of the first frame body, which is far away from the second frame body, the second cab apron is rotatably arranged at one end of the second frame body, which is far away from the first frame body, and the rotation axial directions of the first cab apron and the second cab apron are both in the second direction.
Therefore, the coal mine roadway moving device provided by the embodiment of the invention has the advantages of high applicability and convenience in moving conveying equipment.
In some embodiments, the first frame body is provided with a plurality of sliding plates arranged in parallel in the second direction, the length direction of the sliding plates is the first direction, and the sliding plates are slidably arranged in the second frame body along the first direction.
In some embodiments, the sliding plate has a plurality of fixing holes spaced apart in the first direction, the fixing holes penetrating the sliding plate in an up-down direction, and fixing members penetrating the second frame body may be inserted into the fixing holes on the sliding plate to fix the sliding plate to the second frame body.
In some embodiments, the plurality of first telescopic cylinders are arranged at intervals in the second direction, and the sliding plates are arranged on two sides of the first telescopic cylinders in the second direction.
In some embodiments, a supporting cylinder group is arranged at the bottom of each of the first frame body and the second frame body, each supporting cylinder group comprises two second telescopic cylinders which are arranged in parallel in the second direction, and a telescopic part of each second telescopic cylinder can extend downwards to the lower part of the travelling wheel.
In some embodiments, the travelling wheel of each of the first frame and the second frame is provided with the supporting cylinder group on both sides in the first direction.
In some embodiments, the first frame body is provided with a third telescopic oil cylinder at two sides in the second direction, a fixing part of the third telescopic oil cylinder is rotationally connected with the first frame body, and a rotation axis of the third telescopic oil cylinder is in the second direction;
The second frame body is provided with fourth telescopic oil cylinders on two sides in the second direction, fixing parts of the fourth telescopic oil cylinders are rotationally connected with the second frame body, and the rotation axial direction of the fourth telescopic oil cylinders is in the second direction.
In some embodiments, the side plate of the first cab apron has a plurality of first connecting holes spaced along the length direction thereof, and the first connecting piece on the telescopic part of the third telescopic cylinder can be inserted into one of the first connecting holes so as to connect the third telescopic cylinder with the first cab apron;
the side plate of the second cab apron is provided with a plurality of second connecting holes which are arranged at intervals along the length direction of the side plate, and a second connecting piece on the telescopic part of the fourth telescopic oil cylinder can be inserted into one second connecting hole so that the fourth telescopic oil cylinder is connected with the second cab apron.
In some embodiments, a first placing plate for placing a third telescopic cylinder is arranged on two sides of the first frame body in the second direction;
and second placing plates for placing the fourth telescopic oil cylinders are arranged on two sides of the second frame body in the second direction.
In some embodiments, each of the first frame and the second frame is provided with a plurality of binding frames on both sides in the second direction;
A traction frame is arranged at one end of the first frame body, which is far away from the second frame body;
And a traction frame is arranged at one end of the second frame body, which is far away from the first frame body.
Drawings
FIG. 1 is a side view of a coal mine tunnel moving apparatus according to an embodiment of the present invention.
Fig. 2 is a top view of a coal mine tunnel moving apparatus according to an embodiment of the present invention.
Reference numerals: 1. the first frame body, 2, the second frame body, 3, the binding frame, 4, the traction frame, 5, the first telescopic cylinder, 6, the second telescopic cylinder, 7, the third telescopic cylinder, 8, the fourth telescopic cylinder, 9, the first cab apron, 10, the second cab apron, 11, the first connecting hole, 12, the second connecting hole, 13, the sliding plate, 14, the fixed orifices, 15, the walking wheel.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The following describes a coal mine tunnel moving device according to an embodiment of the present invention with reference to the accompanying drawings. As shown in fig. 1 and 2, the coal mine roadway moving device according to the embodiment of the invention comprises a first frame body 1, a second frame body 2, a first telescopic cylinder 5, a first cab apron 9 and a second cab apron 10.
The length direction of the first frame 1 and the length direction of the second frame 2 are both the first direction, and the width direction of the first frame 1 and the width direction of the second frame 2 are both the second direction. The first frame body 1 and the second frame body 2 are connected in a sliding mode in the first direction, the top surface of the first frame body 1 and the top surface of the second frame body 2 are used for placing equipment, travelling wheels 15 are arranged at the bottoms of the first frame body 1 and the second frame body 2, and any two of the first direction, the second direction and the upper and lower directions are perpendicular to each other. The first direction may be a front-rear direction, and the second direction may be a left-right direction, the front-rear direction and the left-right direction being indicated by arrows in the figure.
For example, the longitudinal direction of the first frame 1 and the longitudinal direction of the second frame 2 are both the front-rear direction, and the width direction of the first frame 1 and the width direction of the second frame 2 are both the left-right direction. The first frame 1 is slidably connected to the second frame 2 in the front-rear direction, and the first frame 1 is located at the rear side of the second frame 2.
The fixed part of the first telescopic oil cylinder 5 is connected with the first frame body 1, and the telescopic part of the first telescopic oil cylinder 5 is connected with the second frame body 2. Specifically, the fixed part of the first telescopic cylinder 5 is hinged with the first frame body 1, and the telescopic part of the first telescopic cylinder 5 is hinged with the second frame body 2. When the telescopic part of the first telescopic cylinder 5 extends outwards, the first frame body 1 and the second frame body 2 can be relatively far away in the first direction, so that the length of a placing frame formed by the first frame body 1 and the second frame body 2 in the first direction can be increased, and the applicability is high.
The first cab apron 9 is rotatably arranged at one end of the first frame body 1 far away from the second frame body 2, the second cab apron 10 is rotatably arranged at one end of the second frame body 2 far away from the first frame body 1, and the rotation axes of the first cab apron 9 and the second cab apron 10 are both in the second direction. Thereby, the equipment can be conveniently placed on the first frame body 1 and the second frame body 2 from the first ferry plate 9 and the second ferry plate 10. For example, the first cab apron 9 is rotatably provided at the rear end of the first frame 1, and the second cab apron 10 is rotatably provided at the front end of the second frame 2.
According to the coal mine roadway moving device provided by the embodiment of the invention, the first frame body 1 and the second frame body 2 which can relatively move in the first direction and the second direction are arranged, so that the length of the placed and arranged frame bodies can be changed. And the first telescopic cylinder 5 can drive the first frame body 1 and the second frame body 2 to move relatively, so that when the travelling wheel 15 below at least one of the first frame body 1 and the second frame body 2 is sunk in a pit, one of the first frame body 1 and the second frame body 2 can be fixed, the first telescopic cylinder 5 stretches and contracts, and the travelling wheel 15 below the other one of the first frame body 1 and the second frame body 2 is separated from a pit, so that the conveying equipment can be moved conveniently.
Therefore, the coal mine roadway moving device provided by the embodiment of the invention has the advantages of high applicability and convenience in moving conveying equipment.
As shown in fig. 1, in some embodiments, the first frame 1 is provided with a plurality of sliding plates 13 arranged in parallel in the second direction, the length direction of the sliding plates 13 is the first direction, and the sliding plates 13 are slidably disposed in the second frame 2 along the first direction. Specifically, the plurality of sliding plates 13 on the first frame body 1 may extend into the sliding grooves in the second frame body 2. For example, the longitudinal direction of the slide plate 13 is the front-rear direction, and a plurality of slide plates 13 are provided at intervals in the left-right direction.
As shown in fig. 2, in some embodiments, the sliding plate 13 has a plurality of fixing holes 14 spaced apart in the first direction, the fixing holes 14 penetrating the sliding plate 13 in the up-down direction, and a fixing member penetrating the second frame body 2 may be inserted into the fixing holes 14 on the sliding plate 13 to fix the sliding plate 13 to the second frame body 2. Specifically, after the sliding plate 13 moves relative to the second frame 2, the fixing member passes through the second frame 2 and is then inserted into one of the plurality of fixing holes 14 so as to limit the sliding plate 13 and the first frame 1. For example, the fixing member is a bolt.
As shown in fig. 2, in some embodiments, the first telescopic cylinders 5 are plural, the plural first telescopic cylinders 5 are disposed at intervals in the second direction, and both sides of the first telescopic cylinders 5 in the second direction are provided with sliding plates 13. For example, the plurality of first telescopic cylinders 5 are provided at intervals in the left-right direction, and both sides of the first telescopic cylinders 5 in the left-right direction are provided with sliding plates 13.
As shown in fig. 1, in some embodiments, a support cylinder group is provided at the bottom of each of the first frame 1 and the second frame 2, and each support cylinder group includes two second telescopic cylinders 6 arranged in parallel in the second direction, and a telescopic portion of the second telescopic cylinder 6 may extend downward below the travelling wheel 15. Specifically, the traveling wheels 15 of each of the first frame body 1 and the second frame body 2 are provided with a support cylinder group on both sides in the first direction. When the travelling wheels 15 below the first frame body 1 and the second frame body 2 sink into the pit and are difficult to drag, the telescopic part of the second telescopic cylinder 6 supporting at least one of the cylinder groups can extend downwards below the travelling wheels 15, so that the travelling wheels 15 are convenient to separate from the pit and drag by a tractor. Or when the travelling wheel 15 of the first frame body 1 falls into the pit and is difficult to drag, the telescopic part of the second telescopic oil cylinder 6 below the second frame body 2 can downwards extend to the lower part of the travelling wheel 15, and then the first telescopic oil cylinder 5 stretches and contracts, so that the travelling wheel 15 of the first frame body 1 is separated from the pit.
As shown in fig. 1 and 2, in some embodiments, the first frame 1 is provided with third telescopic cylinders 7 on two sides in the second direction, a fixing portion of each third telescopic cylinder 7 is rotationally connected with the first frame 1, and a rotation axis of each third telescopic cylinder 7 is in the second direction. The second frame body 2 is provided with fourth telescopic oil cylinders 8 on two sides in the second direction, a fixing part of each fourth telescopic oil cylinder 8 is rotationally connected with the second frame body 2, and the rotation axis of each fourth telescopic oil cylinder 8 is in the second direction. Specifically, the first frame 1 is provided with a third telescopic oil cylinder 7, and the second frame 2 is provided with a fourth telescopic oil cylinder 8, so that when the first frame 1 and the second frame 2 need to move or drag equipment, the frame or the equipment can be pulled by the third telescopic oil cylinder 7 and the second telescopic oil cylinder 8.
As shown in fig. 1 and 2, in some embodiments, the side plate of the first cab apron 9 has a plurality of first connection holes 11 spaced apart along the length thereof, and the first connection member on the telescopic portion of the third telescopic ram 7 may be inserted into one of the first connection holes 11 to connect (hinge) the third telescopic ram 7 with the first cab apron 9. Therefore, the third telescopic oil cylinder 7 can be connected with the first cab apron 9 through the first connecting piece and the first connecting hole 11, so that when the equipment is required to be limited, the third telescopic oil cylinder 7 is connected with the first cab apron 9, and a protective frame can be formed.
The side plate of the second cab apron 10 has a plurality of second connecting holes 12 spaced apart along the length thereof, and the second connecting member on the telescopic portion of the fourth telescopic cylinder 8 may be inserted into one of the second connecting holes 12 to connect the fourth telescopic cylinder 8 with the second cab apron 10. Therefore, the fourth telescopic oil cylinder 8 can be connected with the second cab apron 10 through the second connecting piece and the second connecting hole 12, so that the fourth telescopic oil cylinder 8 can be connected with the second cab apron 10 when the equipment is required to be limited, and a protective frame can be formed.
As shown in fig. 2, in some embodiments, both sides of the first frame body 1 in the second direction are provided with first placing plates for placing the third telescopic cylinders 7 so that the first placing plates can be used to support the third telescopic cylinders 7.
The second frame body 2 is provided with second placing plates for placing the fourth telescopic cylinder 8 at both sides in the second direction so that the second placing plates can be used for supporting the fourth telescopic cylinder 8.
As shown in fig. 2, in some embodiments, each of the first and second shelves 1 and 2 is provided with a plurality of binding frames 3 at both sides in the second direction. One end of the first frame body 1 far away from the second frame body 2 is provided with a traction frame 4, and one end of the second frame body 2 far away from the first frame body 1 is provided with the traction frame 4, so that the trailer is convenient for traction of the first frame body 1 or the second frame body 2.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the invention.
Claims (10)
1. A coal mine roadway moving device, comprising:
The device comprises a first frame body and a second frame body, wherein the length direction of the first frame body and the length direction of the second frame body are both in a first direction, the width direction of the first frame body and the width direction of the second frame body are both in a second direction, the first frame body and the second frame body are connected in a sliding mode in the first direction, the top surface of the first frame body and the top surface of the second frame body are used for placing equipment, travelling wheels are arranged at the bottoms of the first frame body and the second frame body, and any two of the first direction, the second direction and the up-down direction are mutually perpendicular;
The fixed part of the first telescopic oil cylinder is connected with the first frame body, and the telescopic part of the first telescopic oil cylinder is connected with the second frame body;
The first cab apron and the second cab apron are rotatably arranged at one end of the first frame body, which is far away from the second frame body, the second cab apron is rotatably arranged at one end of the second frame body, which is far away from the first frame body, and the rotation axial directions of the first cab apron and the second cab apron are both in the second direction.
2. The coal mine roadway moving device of claim 1, wherein the first frame body is provided with a plurality of sliding plates arranged in parallel in the second direction, the length direction of the sliding plates is the first direction, and the sliding plates are slidably arranged in the second frame body along the first direction.
3. The coal mine roadway moving apparatus of claim 2, wherein the sliding plate has a plurality of fixing holes spaced apart in the first direction, the fixing holes penetrating the sliding plate in an up-down direction, and fixing members penetrating the second frame body are insertable into the fixing holes of the sliding plate to fix the sliding plate to the second frame body.
4. The coal mine roadway moving device of claim 2, wherein the plurality of first telescopic cylinders are arranged at intervals in the second direction, and the sliding plates are arranged on two sides of the first telescopic cylinders in the second direction.
5. The coal mine roadway moving device of claim 1, wherein a supporting cylinder group is arranged at the bottom of each of the first frame body and the second frame body, each supporting cylinder group comprises two second telescopic cylinders which are arranged in parallel in the second direction, and telescopic parts of the second telescopic cylinders can extend downwards to the lower part of the travelling wheels.
6. The coal mine roadway moving device of claim 5, wherein the walking wheels of each of the first frame body and the second frame body are provided with the supporting cylinder groups on both sides in the first direction.
7. The coal mine tunnel moving device of claim 1, wherein,
The first frame body is provided with a third telescopic oil cylinder at two sides in the second direction, the fixed part of the third telescopic oil cylinder is rotationally connected with the first frame body, and the rotation axial direction of the third telescopic oil cylinder is in the second direction;
The second frame body is provided with fourth telescopic oil cylinders on two sides in the second direction, fixing parts of the fourth telescopic oil cylinders are rotationally connected with the second frame body, and the rotation axial direction of the fourth telescopic oil cylinders is in the second direction.
8. The coal mine tunnel moving apparatus according to claim 7, wherein,
The side plate of the first cab apron is provided with a plurality of first connecting holes which are arranged at intervals along the length direction of the side plate, and a first connecting piece on the telescopic part of the third telescopic oil cylinder can be inserted into one of the first connecting holes so as to enable the third telescopic oil cylinder to be connected with the first cab apron;
the side plate of the second cab apron is provided with a plurality of second connecting holes which are arranged at intervals along the length direction of the side plate, and a second connecting piece on the telescopic part of the fourth telescopic oil cylinder can be inserted into one second connecting hole so that the fourth telescopic oil cylinder is connected with the second cab apron.
9. The coal mine tunnel moving apparatus according to claim 7, wherein,
A first placing plate for placing a third telescopic oil cylinder is arranged on two sides of the first frame body in the second direction;
and second placing plates for placing the fourth telescopic oil cylinders are arranged on two sides of the second frame body in the second direction.
10. The coal mine tunnel moving device of claim 1, wherein,
Each of the first frame body and the second frame body is provided with a plurality of binding frames on two sides in the second direction;
A traction frame is arranged at one end of the first frame body, which is far away from the second frame body;
And a traction frame is arranged at one end of the second frame body, which is far away from the first frame body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410387941.9A CN118167408A (en) | 2024-04-01 | 2024-04-01 | Coal mine tunnel moving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410387941.9A CN118167408A (en) | 2024-04-01 | 2024-04-01 | Coal mine tunnel moving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118167408A true CN118167408A (en) | 2024-06-11 |
Family
ID=91360004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410387941.9A Pending CN118167408A (en) | 2024-04-01 | 2024-04-01 | Coal mine tunnel moving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118167408A (en) |
-
2024
- 2024-04-01 CN CN202410387941.9A patent/CN118167408A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5163537A (en) | Battery changing system for electric battery-powered vehicles | |
| US10273754B2 (en) | Mobile drilling rig | |
| US20120186841A1 (en) | Powered module and attachment combination | |
| CN118167408A (en) | Coal mine tunnel moving device | |
| US3744615A (en) | Installation for the evacuation of rocks from a working to a continuous transporter | |
| CN201721533U (en) | Crawler traveling chassis of rotary drilling rig | |
| US20190202674A1 (en) | Industrial truck and drive wheel bearing device for industrial trucks | |
| CN109098656B (en) | Multifunctional movable type raise boring machine | |
| CN210013665U (en) | Roadway drilling device based on drilling and anchoring integration | |
| US2814889A (en) | Excavating machine | |
| CN108150204A (en) | A kind of shield machine fast discharging arm assembly suitable for small digging diameter | |
| CN210456692U (en) | Hydraulic support loading device | |
| US6059513A (en) | Pull-type rear ejector wagon | |
| CN210564356U (en) | Rail wheel lifting device and wheel type drilling machine | |
| CN110005339A (en) | Tunnel drilling equipment based on drilling anchor one | |
| CN113104775B (en) | Unit support carrier and using method | |
| CN114873308B (en) | Gangue bulk material trackless self-loading and unloading transportation system and method for coal mine shaft | |
| WO2014117239A1 (en) | Vehicle for transporting tracked equipment | |
| EP1096106A2 (en) | A mechanical arm for connections to an advancing tailpiece | |
| CN218198263U (en) | Traveling mechanism | |
| CN216886969U (en) | Obstacle-crossing type crawler | |
| JP2020079538A (en) | Mine mining system | |
| CN108374679B (en) | Novel section of jurisdiction uninstallation device | |
| CN112627825A (en) | Strip mine side wall mining system | |
| CN214358554U (en) | Conveyor bracket assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination |