CN113622919A - Anti-slip device and displacement type belt conveyor - Google Patents
Anti-slip device and displacement type belt conveyor Download PDFInfo
- Publication number
- CN113622919A CN113622919A CN202110988172.4A CN202110988172A CN113622919A CN 113622919 A CN113622919 A CN 113622919A CN 202110988172 A CN202110988172 A CN 202110988172A CN 113622919 A CN113622919 A CN 113622919A
- Authority
- CN
- China
- Prior art keywords
- pulling
- target object
- limiting
- ground
- supporting mechanism
- 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.)
- Granted
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 116
- 235000014443 Pyrus communis Nutrition 0.000 claims description 32
- 239000002689 soil Substances 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000013508 migration Methods 0.000 claims 2
- 238000004873 anchoring Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C47/00—Machines for obtaining or the removal of materials in open-pit mines
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
An anti-slip device comprises a supporting mechanism, a pulling and moving mechanism and a limiting mechanism, wherein the supporting mechanism is used for being connected with a loaded target object, the limiting mechanism is in contact with the ground, the supporting mechanism is arranged below the target object, the upper end of the supporting mechanism is hinged with the target object, the lower end of the supporting mechanism is hinged with the limiting mechanism, the length of the supporting mechanism can be adjusted, the pulling and moving mechanism is arranged on the side wall of the target object on one side of the supporting mechanism or on the side wall of an external mechanism on one side of the supporting mechanism, one end of the pulling and moving mechanism is hinged with the side wall of the target object or the side wall of the external mechanism, the other end of the pulling and moving mechanism is hinged with the limiting mechanism, so that a deformable triangular structure is formed by the hinging points of the pulling and moving mechanism, the limiting mechanism is provided with a surface in contact with the ground and a tip portion inserted into the ground, and a displacement type belt conveyor realizes positioning through the anti-slip device instead of an anchoring device The efficient anti-slip device thoroughly enables the belt conveyor to move on a non-basic road, and has great practical value.
Description
Technical Field
The invention relates to the technical field of surface mining, in particular to an anti-slip device and a displacement belt conveyor.
Background
The displacement belt conveyor is adopted in the continuous mining process of the surface mine, and is formed by modifying the structural form of the traditional fixed belt conveyor, although the civil engineering foundation part with longer construction period of the fixed belt conveyor is removed, the embedded anchoring device is used for replacing an embedded bolt. The main purposes of the transformation are as follows: one is that in continuous mining, the conveyor is subject to constant shifting as the face is stripped and advanced. Secondly, the device can adapt to complex terrains with high fluctuation frequency or short-term application.
According to different transmission powers or different transmission modes, the anchoring devices are generally pre-embedded in the head station and the tail station of the belt-type conveyor to prevent the head station or the tail station from slipping or overturning to influence the normal operation of the conveyor. The anchoring means, on the other hand, vary in number from about 4, 8 and 16, generally in the form of concretes poured inside the closed container, having dimensions varying from about 2 to about 8 metres. As shown in fig. 1 and 2, since the belt conveyor needs to be displaced continuously, the anchor device needs to be moved accordingly, i.e. each time the belt conveyor is moved, the anchor device needs to be dug out and buried in the next predetermined position. So relapse, very big waste the labour, reduced and moved and establish efficiency, increased and moved and establish the cost.
Disclosure of Invention
There is a need for an anti-slip device.
An anti-sliding device comprises a supporting mechanism, a pulling and moving mechanism and a limiting mechanism, wherein the supporting mechanism is used for being connected with a loaded target object, the limiting mechanism is in contact with the ground, the supporting mechanism is arranged below the target object, the upper end of the supporting mechanism is hinged with the target object, the lower end of the supporting mechanism is hinged with the limiting mechanism, the length of the supporting mechanism is adjustable, the pulling and moving mechanism is arranged on the side wall of the target object on one side of the supporting mechanism or on the side wall of an external mechanism on one side of the supporting mechanism, one end of the pulling and moving mechanism is hinged with the side wall of the target object or the side wall of the external mechanism, the other end of the pulling and moving mechanism is hinged with the limiting mechanism, so that a deformable triangular structure is formed by hinged points of the pulling and moving mechanism, the supporting mechanism and the limiting mechanism, and the limiting mechanism is provided with a surface in contact with the ground and a tip portion inserted into the ground.
According to the invention, the displacement type belt conveyor realizes positioning through the anti-sliding device, replaces an anchoring device, is an non-basic and efficient anti-sliding device by changing an anchoring mode, thoroughly enables the displacement type belt conveyor to walk on a non-basic road, and has great practical value.
Drawings
Fig. 1 shows an anchoring device of a displacement belt conveyor and a fixing mode thereof in the prior design.
Fig. 2 is a partially enlarged view of fig. 1.
Fig. 3 is a schematic view of a head station of a displacement belt conveyor.
Fig. 4 is a simplified schematic diagram of fig. 3. The figure is a front view. The displayed state that the ground breaking knife is inserted into the ground and locked. At this time, the oil cylinder 11 is in a vertical arrangement, perpendicular to the ground.
Fig. 5 is another state diagram of fig. 4. A schematic view of the loose ground is shown. At this time, the cylinder 11 is in an inclined state.
Fig. 6 is a right side view of fig. 4.
Fig. 7 is a cross-sectional view taken along line a-a in fig. 6, showing a structural schematic diagram of the limiting member 41.
In the figure: the device comprises an oil cylinder 11, a hydraulic station 12, a pull rod 21, a pear plate 31, a ground breaking knife 32, a limiting piece 41, a reinforcing rib plate 51, an anti-slip device 10, a target object 20, a machine head station 30 and the ground 100.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 3 to 7, an anti-sliding device 10 according to an embodiment of the present invention includes a supporting mechanism for connecting to a target object, a pulling and moving mechanism, and a limiting mechanism contacting with the ground, wherein the supporting mechanism is disposed below the target object 20, an upper end of the supporting mechanism is hinged to the target object 20, a lower end of the supporting mechanism is hinged to the limiting mechanism, a length of the supporting mechanism is adjustable, the pulling and moving mechanism is disposed on a sidewall of the target object on one side of the supporting mechanism or on a sidewall of an external mechanism on one side of the supporting mechanism, one end of the pulling and moving mechanism is hinged to the sidewall of the target object or the sidewall of the external mechanism, and the other end of the pulling and moving mechanism is hinged to the limiting mechanism, so that a deformable triangle structure is formed at a hinge point of the pulling and moving mechanism, the supporting mechanism, and the limiting mechanism is disposed on a surface contacting with the ground 100 and a tip portion inserted into the ground 100.
Furthermore, the other end of the pulling and moving mechanism and the supporting mechanism are hinged with the limiting mechanism through the same hinge point. Thereby forming a deformable triangle.
Further, the supporting mechanism is an oil cylinder 11, a hydraulic station 12 is configured for the oil cylinder 11, the pressure of the hydraulic station 12 is connected with the oil cylinder 11 through a pipeline, a cylinder base or a cylinder rod of the oil cylinder 11 is hinged with the lower portion of the target object, and a cylinder rod or a cylinder base of the oil cylinder 11 is hinged with the limiting mechanism.
Further, the pulling and moving mechanism is a pull rod 21. The length of the pull rod 21 is unchanged, and when the oil cylinder 11 extends or shortens, the pull rod 21 forms a drawing radius, so that the oil cylinder 11 rotates around the pull rod 21 in an arc shape. When the oil cylinder 11 is in a vertical state, the oil cylinder 11 is perpendicular to the ground, the pear plate 31 is in contact with the ground level, at the moment, the oil cylinder 11 is pressed by a target object, the distance between the target object and the ground is shortest, and acting force is most stable.
Further, the limiting mechanism comprises a pear plate 31 and a soil breaking knife 32, a hinge point is arranged on the upper portion of the pear plate 31, a surface in contact with the ground is arranged on the lower portion of the pear plate 31, and the soil breaking knife 32 is arranged below the pear plate 31 and provided with a tip portion inserted into the ground. The pear plate 31 is shaped like a horseshoe or a triangle or a boot.
Furthermore, a limiting piece 41 is arranged between the pull rod 21 and the pear plate 31, the limiting piece 41 is fixed on the pull rod 21, and the lower end of the limiting piece 41 is in contact with the upper part of the pear plate 31. When the pear plate 31 is in contact with the ground, the pull rod 21 pulls the oil cylinder 11 to change from an inclined state to a vertical state, at the moment, the pear plate 31 has a rotating trend, the pear plate 31 is propped against through the limiting part 41, the rotation of the pear plate is avoided, and the stable contact with the ground is ensured.
Further, the limiting member 41 is an inverted U-shaped clip, the shoulder of the U-shaped clip is engaged with the pull rod 21, and both ends are used for contacting the pear plate 31.
Further, in a preferred embodiment, the anti-sliding device includes two sets of symmetrically arranged supporting mechanisms, pulling mechanisms and limiting mechanisms with the same structure, a reinforcing rib plate 51 is arranged between the two sets of limiting mechanisms to connect the two sets of limiting mechanisms, preferably, the reinforcing rib plate 51 is vertically arranged, the soil breaking knife 32 in the limiting mechanism is a long strip-shaped knife plate connected between the two pear plates 31, and the reinforcing rib plate 51 is arranged above the soil breaking knife 32 and connected with the two pear plates. In a preferred embodiment, the two can be welded into a single structure.
Further, the reinforcing rib plate 51 is an arc-shaped plate with the middle protruding upward. Because the direct acting force of the oil cylinders 11 acts on the pear plates 31, the pear plates 31 are arranged close to two sides, and the middle part of each pear plate 31 is in a weak stress area, so that the earth breaking knives 32 between the two pear plates 31 are upwards deformed under the reaction force of the ground and cannot be smoothly inserted into the ground, the rib plates are used for transmitting the acting force of the oil cylinders 11 on the two sides to the middle positions of the earth breaking knives 32, and the upwards-convex arc-shaped rib plates further resist the upwards-deformed acting force of the earth breaking knives 32.
Of course, three sets of supporting mechanisms, pulling and moving mechanisms and limiting mechanisms arranged side by side can be adopted. This quantity is not restricted, and is a reasonable deformation of this scheme.
A displacement type belt conveyor is provided with anti-slip devices at a head station 30 and/or a tail station of the displacement type belt conveyor.
Further, two sets of the anti-slip devices are arranged below the head station 30, the two sets of the anti-slip devices are respectively located at two end portions of the head station, the anti-slip devices are arranged in a space at the lower portion of the head station, and a target object provided with the anti-slip devices is formed on the lower surface and the side wall of the head station. In a specific embodiment, the anti-sliding device arranged below the machine head comprises two groups of supporting mechanisms, pulling and moving mechanisms and limiting mechanisms which are the same in structure and symmetrically arranged, a reinforcing rib plate 51 is arranged between the two groups of limiting mechanisms, and the reinforcing rib plate 51 is vertically arranged.
When the hydraulic power station is used, the hydraulic station 12 controls the oil cylinder 11 to extend through the oil pipe, the oil cylinder 11 controls the soil breaking knife 32 to be inserted into the ground while supporting a target object, the surface of the pear plate 31 is in contact with the ground, the grounding area is increased, the self weight of the target object above the oil cylinder 11 acts on the oil cylinder 11, the oil cylinder 11 keeps pressure, the pear plate 31 is pressed on the ground through the weight of the target object, the soil below the pear plate 31 is compacted, the firmness of the soil below the pear plate 31 is increased, the adhesion performance of the pear plate 31 to the ground is increased, the firm soil ensures that the inserted soil breaking knife 32 cannot loosen or shift, and therefore the target object is prevented from sliding. When positioning is needed, the oil cylinder 11 is pressurized and extended to drive the ground breaking knife 32 to be inserted into the ground, and under the action of the weight of a target object, the contact strength of the ground breaking knife 32 and the vertical plate with the ground is further enhanced, and the ground breaking knife and the vertical plate are placed to slide; when the belt conveyor moves, the oil cylinder 11 is decompressed, the oil cylinder 11 contracts, the soil breaking knife 32 moves out of the soil, the pear plate 31 is separated from the ground, and the machine head and the conveyor can freely walk.
The modules or units in the device of the embodiment of the invention can be combined, divided and deleted according to actual needs.
The above disclosure is only illustrative of the preferred embodiments of the present invention, which should not be taken as limiting the scope of the invention, but rather the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It will be understood by those skilled in the art that all or a portion of the above-described embodiments may be practiced and equivalents thereof may be resorted to as falling within the scope of the invention as claimed. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. An anti-slip device, characterized in that: the device comprises a supporting mechanism, a pulling and moving mechanism and a limiting mechanism, wherein the supporting mechanism is used for being connected with a loaded target object, the limiting mechanism is in contact with the ground, the supporting mechanism is arranged below the target object, the upper end of the supporting mechanism is hinged with the target object, the lower end of the supporting mechanism is hinged with the limiting mechanism, the length of the supporting mechanism is adjustable, the pulling and moving mechanism is arranged on the side wall of the target object on one side of the supporting mechanism or on the side wall of an external mechanism on one side of the supporting mechanism, one end of the pulling and moving mechanism is hinged with the side wall of the target object or the side wall of the external mechanism, the other end of the pulling and moving mechanism is hinged with the limiting mechanism, so that a hinged point of the pulling and moving mechanism, the supporting mechanism and the limiting mechanism forms a deformable triangular structure, and the limiting mechanism is provided with a surface in contact with the ground and a tip portion inserted into the ground.
2. The anti-migration device according to claim 1, wherein: the other end of the pulling and moving mechanism and the supporting mechanism are hinged with the limiting mechanism through the same hinge point.
3. The anti-migration device according to claim 1, wherein: the supporting mechanism is an oil cylinder, a hydraulic station is also configured for the oil cylinder, the pressure of the hydraulic station is connected with the oil cylinder through a pipeline, a cylinder seat or a cylinder rod of the oil cylinder is hinged with the lower part of the target object, and a cylinder rod or a cylinder seat of the oil cylinder is hinged with the limiting mechanism.
4. The anti-skid device of claim 3, wherein: the pulling and moving mechanism is a pull rod.
5. The anti-skid device of claim 4, wherein: limiting mechanism includes pear board and broken soil sword, and the upper portion of pear board sets up the pin joint, and the lower part sets up the face with ground contact, and the broken soil sword sets up in pear board below, and has to ground male point portion.
6. The anti-skid device of claim 5, wherein: still set up the locating part between pull rod and pear board, the locating part is fixed in on the pull rod, and the lower extreme of locating part contacts with pear board top.
7. The anti-skid device of claim 5, wherein: the anti-slip device comprises two groups of supporting mechanisms, pulling and moving mechanisms and limiting mechanisms which are the same in structure and symmetrically arranged, and reinforcing rib plates are arranged between the two groups of limiting mechanisms to connect the two groups of limiting mechanisms, the ground breaking knife in the limiting mechanism is a long-strip-shaped knife plate connected between the two pear plates, and the reinforcing rib plates are arranged above the ground breaking knife and connected with the ground breaking knife.
8. The anti-skid device of claim 5, wherein: the reinforcing rib plate is an arc plate with the middle part protruding upwards.
9. A displacement belt conveyor, characterized by: an anti-slip device is arranged at a head station and/or a tail station of the displacement belt conveyor respectively, and the anti-slip device is the anti-slip device according to one of claims 1 to 8.
10. The displacement belt conveyor of claim 9, wherein: two sets of the anti-slip devices are arranged below the head station, the two sets of the anti-slip devices are respectively located at two end portions of the head station, the anti-slip devices are arranged in a space at the lower portion of the head station, and the lower surface and the side wall of the head station form a target object provided with the anti-slip devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110988172.4A CN113622919B (en) | 2021-08-26 | 2021-08-26 | Anti-slip device and displacement type belt conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110988172.4A CN113622919B (en) | 2021-08-26 | 2021-08-26 | Anti-slip device and displacement type belt conveyor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113622919A true CN113622919A (en) | 2021-11-09 |
| CN113622919B CN113622919B (en) | 2023-06-16 |
Family
ID=78388016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110988172.4A Active CN113622919B (en) | 2021-08-26 | 2021-08-26 | Anti-slip device and displacement type belt conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113622919B (en) |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2001683A (en) * | 1977-07-21 | 1979-02-07 | Gewerk Eisenhuette Westfalia | Mineral mining installations |
| DE102009013709A1 (en) * | 2009-03-20 | 2011-01-05 | Wirtgen Gmbh | Mining machine, in particular surface miner, and method for removing and installing a transport device in a mining machine |
| CN101943024A (en) * | 2010-09-25 | 2011-01-12 | 霍州煤电集团有限责任公司 | Whole pulling and moving type whole-process unloading belt conveyor for coal mine underground filling |
| CN201857965U (en) * | 2010-11-14 | 2011-06-08 | 内蒙古北方重工业集团有限公司 | Anti-slip device |
| CN103161464A (en) * | 2011-12-12 | 2013-06-19 | 西安煤矿机械有限公司 | A forced antiskid mechanism for a coal mining machine |
| CN203248154U (en) * | 2013-04-22 | 2013-10-23 | 三一重型装备有限公司 | Tunneling machine and walking assisting device thereof |
| CN203285438U (en) * | 2013-06-07 | 2013-11-13 | 济宁驰众机械有限公司 | Underground mine anti-slide device |
| CN203808139U (en) * | 2014-03-06 | 2014-09-03 | 廊坊市管道人机械设备有限公司 | Parking support device |
| CN206722756U (en) * | 2017-05-15 | 2017-12-08 | 赵向阳 | Bore expanded hole Job Operations car |
| CN108590746A (en) * | 2018-05-31 | 2018-09-28 | 神华宁夏煤业集团有限责任公司梅花井煤矿 | A kind of foundation-free installation system for fixing ribbon conveyer |
| CN208858355U (en) * | 2018-08-24 | 2019-05-14 | 中国有色金属工业昆明勘察设计研究院有限公司 | A kind of outdoor placer mining equipment based on waterpower |
| CN209025600U (en) * | 2018-10-26 | 2019-06-25 | 杭州临安大地规划勘测有限公司 | A kind of crawler-type engineering drilling machine |
| CN110185078A (en) * | 2019-06-25 | 2019-08-30 | 广州市淞滨工程技术有限公司 | A kind of high excavator of stability for ore extraction |
| CN110242298A (en) * | 2019-06-06 | 2019-09-17 | 郑州科技学院 | A kind of mining equiment rapid installation device |
| CN210068144U (en) * | 2019-07-05 | 2020-02-14 | 张骞 | Anti-skid device of coal mining machine |
| CN210105851U (en) * | 2019-06-26 | 2020-02-21 | 吴宁宁 | Novel supporting device of coal mining machine |
| CN210504333U (en) * | 2019-06-28 | 2020-05-12 | 宁夏天地西北煤机有限公司 | High-efficient reassembling type does not have scalable belt conveyor of basis |
| CN210858716U (en) * | 2019-08-06 | 2020-06-26 | 李红军 | Supporting platform for coal mine machinery |
| CN111577348A (en) * | 2020-05-14 | 2020-08-25 | 中铁一局集团有限公司 | Quick bottom supporting device and method for lining trolley |
| CN212202126U (en) * | 2020-03-25 | 2020-12-22 | 中煤张家口煤矿机械有限责任公司 | Antiskid anchoring device for large-inclination-angle scraper conveyor |
-
2021
- 2021-08-26 CN CN202110988172.4A patent/CN113622919B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2001683A (en) * | 1977-07-21 | 1979-02-07 | Gewerk Eisenhuette Westfalia | Mineral mining installations |
| DE102009013709A1 (en) * | 2009-03-20 | 2011-01-05 | Wirtgen Gmbh | Mining machine, in particular surface miner, and method for removing and installing a transport device in a mining machine |
| CN101943024A (en) * | 2010-09-25 | 2011-01-12 | 霍州煤电集团有限责任公司 | Whole pulling and moving type whole-process unloading belt conveyor for coal mine underground filling |
| CN201857965U (en) * | 2010-11-14 | 2011-06-08 | 内蒙古北方重工业集团有限公司 | Anti-slip device |
| CN103161464A (en) * | 2011-12-12 | 2013-06-19 | 西安煤矿机械有限公司 | A forced antiskid mechanism for a coal mining machine |
| CN203248154U (en) * | 2013-04-22 | 2013-10-23 | 三一重型装备有限公司 | Tunneling machine and walking assisting device thereof |
| CN203285438U (en) * | 2013-06-07 | 2013-11-13 | 济宁驰众机械有限公司 | Underground mine anti-slide device |
| CN203808139U (en) * | 2014-03-06 | 2014-09-03 | 廊坊市管道人机械设备有限公司 | Parking support device |
| CN206722756U (en) * | 2017-05-15 | 2017-12-08 | 赵向阳 | Bore expanded hole Job Operations car |
| CN108590746A (en) * | 2018-05-31 | 2018-09-28 | 神华宁夏煤业集团有限责任公司梅花井煤矿 | A kind of foundation-free installation system for fixing ribbon conveyer |
| CN208858355U (en) * | 2018-08-24 | 2019-05-14 | 中国有色金属工业昆明勘察设计研究院有限公司 | A kind of outdoor placer mining equipment based on waterpower |
| CN209025600U (en) * | 2018-10-26 | 2019-06-25 | 杭州临安大地规划勘测有限公司 | A kind of crawler-type engineering drilling machine |
| CN110242298A (en) * | 2019-06-06 | 2019-09-17 | 郑州科技学院 | A kind of mining equiment rapid installation device |
| CN110185078A (en) * | 2019-06-25 | 2019-08-30 | 广州市淞滨工程技术有限公司 | A kind of high excavator of stability for ore extraction |
| CN210105851U (en) * | 2019-06-26 | 2020-02-21 | 吴宁宁 | Novel supporting device of coal mining machine |
| CN210504333U (en) * | 2019-06-28 | 2020-05-12 | 宁夏天地西北煤机有限公司 | High-efficient reassembling type does not have scalable belt conveyor of basis |
| CN210068144U (en) * | 2019-07-05 | 2020-02-14 | 张骞 | Anti-skid device of coal mining machine |
| CN210858716U (en) * | 2019-08-06 | 2020-06-26 | 李红军 | Supporting platform for coal mine machinery |
| CN212202126U (en) * | 2020-03-25 | 2020-12-22 | 中煤张家口煤矿机械有限责任公司 | Antiskid anchoring device for large-inclination-angle scraper conveyor |
| CN111577348A (en) * | 2020-05-14 | 2020-08-25 | 中铁一局集团有限公司 | Quick bottom supporting device and method for lining trolley |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113622919B (en) | 2023-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102966134B (en) | Scraper bowl, rigging and the device of dragline | |
| CN113622919A (en) | Anti-slip device and displacement type belt conveyor | |
| CN101239651A (en) | Self-lifting/sinking ice resistance type anchoring system | |
| CN205171527U (en) | Steel sheet pile | |
| KR200399769Y1 (en) | Steel frame revetment using earth anchor | |
| US6814161B1 (en) | Stakedown assembly for a horizontal directional drill | |
| CN217758857U (en) | Pipeline foundation trench backfilling structure | |
| CN215053420U (en) | Digging bucket | |
| CN212839739U (en) | A fortune cloth pipe device that is used for long pipeline construction of complicated water network topography | |
| CN110004997A (en) | A kind of ballast heap carrier static test mobile device and method | |
| CN212104136U (en) | Step slot type slope protection system | |
| CN218318898U (en) | Three-section combined pushing part of scraper conveyor | |
| CN218235109U (en) | Traction chain cooperative guiding device for large-dip-angle thin seam floor climbing coal mining machine | |
| CN217055154U (en) | Coal mine transportation device for coal mine excavation | |
| CN219909112U (en) | Bulldozer pushing hopper | |
| CN204899393U (en) | Prevent transmission line cement pole up -pull structure | |
| CN217946511U (en) | Antiskid device suitable for large-dip-angle middle groove | |
| CN218344484U (en) | Groove bottom structure, reversed loader groove and reversed loader | |
| CN211902162U (en) | Hydraulic supporting platform for mining | |
| CN113089685B (en) | Anchor cable drilled pile structure for deep foundation pit support and support method thereof | |
| CN219930903U (en) | Canal shoulder reinforcing device capable of improving land saving rate | |
| CN209195401U (en) | Coal mining device | |
| CN217379045U (en) | Hammer and hook integrated hook arm | |
| CN214494791U (en) | Pitch is taken off bucket and is pushed away barreled and put | |
| CN105369815A (en) | Steel sheet pile and foundation pit support construction method |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |