CN112796812A - Novel triangular space supporting unit - Google Patents
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- CN112796812A CN112796812A CN202110244894.9A CN202110244894A CN112796812A CN 112796812 A CN112796812 A CN 112796812A CN 202110244894 A CN202110244894 A CN 202110244894A CN 112796812 A CN112796812 A CN 112796812A
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- 239000003245 coal Substances 0.000 abstract description 29
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000005065 mining Methods 0.000 description 6
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- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
- E21D23/0017—Pile type supports
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
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Abstract
The invention discloses a novel triangular area supporting unit which comprises a vertical telescopic piece, a top supporting piece and a base piece, wherein the top supporting piece and the base piece are respectively connected with the top end and the bottom end of the vertical telescopic piece; the side supporting pieces are connected with the base piece through a four-bar linkage, and two ends of two vertical connecting rods of the four-bar linkage are respectively hinged with the side supporting pieces and the base piece; a horizontal telescopic piece is arranged inside the base piece. The invention is provided with a supporting mode of combining the top supporting piece and the side supporting piece, thereby enhancing the supporting strength; the top side supporting piece is adopted to support the side face of the coal mine, so that the safety is higher; the telescopic plates capable of stretching towards the front end and the rear end simultaneously are adopted, so that the supporting area is larger.
Description
The application is a divisional application of the Chinese patent application, and the application date of the original application is as follows: 27/04/2020; application No.: 202010343720.3, respectively; the invention creates the name: a novel triangular area supporting device.
Technical Field
The invention relates to the technical field of coal mine fully mechanized mining, in particular to a triangular area supporting unit of a fully mechanized mining face.
Background
In the coal mine production, after the fully mechanized coal face (stope face) is stoped, equipment such as a hydraulic support of the fully mechanized coal face needs to be withdrawn, a triangular area needing circular support can be formed between a support at the end of the working face and the support to be withdrawn in the withdrawing process of the hydraulic support, and the triangular area is a place where accidents of withdrawing the support are frequent. At present, one or more modes of single hydraulic prop, I-steel (hinged top beam), wood buttress and shield support are generally adopted to carry out triangular area supporting work. The existing supporting mode has a series of problems of low supporting strength, low production efficiency, multiple potential safety hazards and the like, and the withdrawing of the fully mechanized coal mining face support is always a weak link and a difficult point of safety management of coal mine enterprises.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a novel triangular area supporting unit to solve the supporting problem of a triangular area and the problem of convenience in mounting and dismounting of the supporting unit.
In order to solve the technical problems, the invention provides the following technical scheme: novel triangular space supports unit, including the vertical extensible member of vertical setting, respectively with the top of vertical extensible member and the piece of basis of being connected of bottom, and with the articulated side of piece of top support piece props. The side supporting pieces are connected with the base piece through a four-bar mechanism, and two ends of two vertical connecting rods of the four-bar mechanism are hinged with the side supporting pieces and the base piece respectively.
As a preferable scheme of the novel triangular area supporting unit of the invention, wherein: the side supporting piece is laterally hinged to the top supporting piece, a telescopic plate capable of stretching longitudinally is arranged inside the top supporting piece, and the telescopic plate can stretch towards the front end and/or the rear end of the top supporting piece; the foundation component and the inside side direction extensible member that all is provided with of top support piece, the side direction extensible member can to the unit is strutted to the trigonal region and is stretched out and drawn back with one side. Or
The side supporting piece is longitudinally hinged to the rear side of the top supporting piece, the base piece and the inside of the top supporting piece are both provided with lateral telescopic pieces, and the lateral telescopic pieces can extend and retract towards the same side of the triangular area supporting unit.
As a preferable scheme of the novel triangular area supporting unit of the invention, wherein: the top support member is hinged to a top side support member, the top side support member comprises a top side support expansion member hinged to the bottom end of the top support member and a second support member hinged to the right side of the top support member, and the top side support expansion member is hinged to the second support member.
As a preferable scheme of the novel triangular area supporting unit of the invention, wherein: the base part is internally provided with a horizontal telescopic part which can be longitudinally stretched.
As a preferable scheme of the novel triangular area supporting unit of the invention, wherein: the novel triangular area supporting unit is provided with at least one group; when the triangular area supporting unit is provided with two or more groups, the two groups are longitudinally arranged side by side, and the horizontal telescopic piece of the previous novel triangular area supporting unit is connected with the foundation piece of the next novel triangular area supporting unit.
The invention discloses a preferable scheme of a novel triangular area supporting unit, wherein: the vertical telescopic piece is provided with at least one, and the top all with the lower extreme of kicking piece is connected.
The invention has the advantages that the supporting mode of combining the top supporting piece and the side supporting piece is arranged, so that the supporting strength is enhanced; the top side supporting piece is adopted to support the side face of the coal mine, so that the safety is higher; the telescopic plates capable of stretching towards the front end and the rear end simultaneously are adopted, so that the supporting area is larger.
Drawings
Fig. 1 is a diagram of a hydraulic support retracting scenario in example 1.
Fig. 2 is a structural view of the new triangular space supporting apparatus of example 1.
Fig. 3 is a view showing a structure of a first supporting unit of the new triangular space supporting apparatus of example 2.
Fig. 4 is another perspective view of the first supporting unit of the new triangular space supporting apparatus of example 2.
Fig. 5 is a structural view of a second supporting unit of the present invention in example 2.
Figure 6 is another perspective view of the second support unit of the present invention of example 2.
Fig. 7a to 7b are structural change diagrams of the alternate traveling process of the first supporting unit and the second supporting unit in example 2.
Fig. 8a to 8c are structural change diagrams of the alternate traveling process of the first supporting unit and the second supporting unit in example 3.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
In coal mine production, after the fully mechanized coal face (stope face) is finished, along with the forward progress of coal mining work, the hydraulic supports and other equipment arranged on the fully mechanized coal face need to be withdrawn in sequence. In the process of removing the hydraulic supports one by one, a triangular vacant area needing to be supported circularly is formed between the end head of the working face and the (next) hydraulic support to be removed, and the triangular vacant area is called a triangular area for short. The area is a place where accidents of withdrawing the hydraulic support are frequent due to lack of support. Therefore, in the process of withdrawing the hydraulic supports one by one, temporary jacking and supporting are needed to be carried out on the coal mine roof in the triangular area, and roof disasters are prevented.
Example 1
Referring to fig. 1 and 2, a first embodiment of the present invention provides a novel triangular area supporting device, which includes a first novel triangular area supporting unit 100 (referred to as a first supporting unit for short) of the present invention and a second novel triangular area supporting unit 200 (referred to as a second supporting unit for short) of the present invention, the second supporting unit 200 is disposed at a front end of the first supporting unit 100, the first supporting unit 100 and the second supporting unit 200 can respectively perform respective jacking actions and walking actions, and the triangular area supporting device can advance on the premise of continuously jacking a coal mine roof through intermittent rotation and cooperation therebetween.
In order to facilitate the subsequent structural description, the three-dimensional space where the triangular region supporting device is located is defined to have three orthogonal directions, namely longitudinal direction, transverse direction and vertical direction. Wherein, the horizontal direction of the forward and backward movement of the first supporting unit 100 and the second supporting unit 200 is longitudinal; the other horizontal direction vertical to the longitudinal direction is a transverse direction; the vertical direction is a vertical direction, and front in this specification means a direction standing in a longitudinal direction on the first supporting unit 100 facing the second supporting unit 200, and rear means a direction opposite to the front in the longitudinal direction, and left means a direction facing forward, and left-hand side, and right means a direction facing forward, and right-hand side.
Only one of the first supporting unit 100 and the second supporting unit 200 may be provided, and the second unit 200 is located right in front of the first supporting unit 100.
Specifically, the first supporting unit 100 includes a vertical telescopic member 101, a top supporting member 102 and a base member 103 respectively connected to the top end and the bottom end of the vertical telescopic member 101, and a side supporting member 104 hinged to the top supporting member 102. The second support unit 200 is arranged at the front end of the first support unit 100 and comprises a vertical telescopic part 201 which is vertically arranged, a top support part 202 and a base part 203 which are respectively connected with the top end and the bottom end of the vertical telescopic part 201, and a side support part 204 which is hinged with the top support part 202, wherein the side support part 204 is arranged at the right end of the second support unit 200, the vertical telescopic part 101 and the vertical telescopic part 201 can be extended or shortened in length, the extension direction is longitudinal, the vertical telescopic part can be a hydraulic cylinder, the preferred telescopic hydraulic cylinder is multi-stage, the top support part 102 and the top support part 202 are used for jacking the bottom surface of a coal mine roof in a triangular area, the bottom surface can be plate-shaped, block-shaped or strip-shaped, the upper ends of the vertical telescopic part 101 and the vertical telescopic part 201 are defined as telescopic ends, the top support part 102 is arranged at the top of the telescopic end of the vertical telescopic part 101, the top support part 202 is arranged at the top of the telescopic end of the vertical telescopic part 201, the supporting device can be used for jacking or separating a roof of a coal mine, the foundation member 103 and the foundation member 203 are directly contacted with the ground to respectively support the upper structures of the first supporting unit 100 and the second supporting unit 200, the shapes of the upper structures are not specially specified, the upper structures can be in a block shape or other structural forms with supporting and fixing functions, the side supporting members 104 are arranged at the rear ends of the jacking pieces 102 and can enable the first supporting unit 100 to be more stable, the first supporting unit 100 is the most rear support of the coal mine, so that the rear part can collapse when the first supporting unit 100 moves forwards, the side supporting members 104 can support the collapse part when the rear part collapses, and the supporting unit 100 is protected from being buried. The side brace 204 is provided at the right end of the top brace 202, which makes it possible to stabilize the second bolting unit 200, so that the coal mine is mined from the right side of the second bolting unit 200, and therefore, the mining portion on the right side may collapse, and the side brace 204 is provided to support the collapsed portion when the collapse occurs on the right side thereof, and also to protect the second bolting unit 200 from being buried.
Preferably, the vertical telescopic member 101 is provided with two vertical telescopic members 101, and the top ends of the two vertical telescopic members 101 are connected with the lower end of the top support member 102. The vertical telescopic part 201 is provided with two vertical telescopic parts 201, and the top is all connected with the lower extreme of top support piece 202.
Based on the above, it is defined that in the initial state, the first supporting unit 100 is at a certain distance from the second supporting unit 200, at this time, the supporting member 202 is jacked up, the supporting member 102 is dropped, and the supporting unit 100 is controlled to travel forward by a distance which is smaller than the distance between the supporting unit 100 and the second supporting unit 200 in the initial state, after the first supporting unit 100 travels by a distance, the supporting member 102 is jacked up, the supporting member 202 is dropped, and then the second supporting unit 200 is controlled to travel forward by a distance … … in a circulating manner, so that the first supporting unit 100 and the second supporting unit 200 can be jacked up and advanced alternately, and the supporting device in the triangular area can also travel forward on the premise of continuously jacking the coal mine roof, and the vacant positions formed after the hydraulic supports are retracted are filled up.
Example 2
Referring to fig. 2 to 7, a second embodiment of the present invention is different from the first embodiment in that: also included are telescoping plates 202a, top side braces (106, 206), horizontal telescoping pieces 203a, and lateral telescoping pieces (103 a, 203 b). In the above embodiment, the novel triangular space supporting apparatus includes a first supporting unit 100 and a second supporting unit 200; the second supporting unit 200 is arranged at the front end of the first supporting unit 100, the first supporting unit 100 and the second supporting unit 200 can respectively perform respective jacking action and walking action, and the function that the triangular region supporting device can advance forwards on the premise of continuously jacking the coal mine roof is realized through intermittent alternate matching between the first supporting unit 100 and the second supporting unit 200.
Only one of the first supporting unit 100 and the second supporting unit 200 may be provided, and the second supporting unit 200 is located right in front of the first supporting unit 100.
Specifically, the first supporting unit 100 includes a vertical telescopic member 101, a top supporting member 102 and a base member 103 respectively connected to the top end and the bottom end of the vertical telescopic member 101, and a side supporting member 104 hinged to the top supporting member 102. The second support unit 200 is arranged at the front end of the first support unit 100 and comprises a vertical telescopic part 201 which is vertically arranged, a top support part 202 and a base part 203 which are respectively connected with the top end and the bottom end of the vertical telescopic part 201, and a side support part 204 which is hinged with the top support part 202, wherein the side support part 204 is arranged at the right end of the second support unit 200, the vertical telescopic part 101 and the vertical telescopic part 201 can be extended or shortened in length, the extension direction is vertical and can be a hydraulic cylinder, the preferred telescopic hydraulic cylinder is multi-stage, the top support part 102 and the top support part 202 are used for jacking the bottom surface of a coal mine roof in a triangular area and can be plate-shaped, block-shaped or strip-shaped, the upper ends of the vertical telescopic part 101 and the vertical telescopic part 201 are defined as telescopic ends, the top support part 102 is arranged at the top of the telescopic end of the vertical telescopic part 101, the top support part 202 is arranged at the top of the telescopic end of the vertical telescopic part 201 and can respectively move up and down, and the jacking or the separation from the coal mine roof is realized. The base member 103 and the base member 203 directly contact the ground to support the upper structure of the first supporting unit 100 and the upper structure of the second supporting unit 200, respectively, and the shapes thereof are not particularly limited, and may be in the form of blocks or other structures capable of supporting and fixing, the side supporting member 104 is provided at the rear end of the top supporting member 102 to stabilize the first supporting unit 100, and the first supporting unit 100 is the rearmost support of the coal mine, so that the rear may collapse when the first supporting unit 100 moves forward, and the first supporting member 104 is provided to support the collapsed portion when the rear collapses, and also to protect the first supporting unit 100 from being buried. The side brace 204 is provided at the right end of the top brace 202, which makes it possible to stabilize the second bolting unit 200, so that the coal mine is mined from the right side of the second bolting unit 200, and therefore, the mining portion on the right side may collapse, and the side brace 204 is provided to support the collapsed portion when the collapse occurs on the right side thereof, and also to protect the second bolting unit 200 from being buried.
In this embodiment, the first supporting unit 100 is provided with two vertical telescopic members 101, and the top ends of the two vertical telescopic members are connected to the lower end of the top supporting member 102. The second supporting unit 200 is provided with two vertical telescopic pieces 201, and the top ends of the two vertical telescopic pieces are connected with the lower ends of the top supporting pieces 203.
The side supporting pieces 104 and 204 can be configured into a plate shape, the side supporting pieces 104 and the base piece 103 are connected through two non-crossed vertical connecting rods 105, and two ends of the vertical connecting rods 105 are respectively hinged with the side supporting pieces 104 and the base piece 103 to form a geometric variable system four-bar mechanism. The side supporting pieces 204 and the base piece 203 are connected through two non-crossed vertical connecting rods 205, and two ends of each vertical connecting rod 205 are respectively hinged with the side supporting pieces 204 and the base piece 203, so that a four-bar-linkage mechanism with a variable-geometry system is formed.
Further, the top support 202 is provided with a telescopic plate 202a capable of extending and contracting in the longitudinal direction, and the telescopic plate 202a has three extension modes: the front part only extends forwards or only extends backwards or extends forwards and backwards simultaneously, and the specific extending mode is selected according to the situation when in use. The top support 202 has a slot for engaging with the retractable plate 202a, and the retractable plate 202a is inserted into the slot with both ends exposed. The expansion plate 202a is used for increasing the length of the top support piece 203 and the contact area with a coal mine roof, and improving the supporting capacity.
The top support member 102 and the top support member 202 are respectively hinged with a top side support member (106, 206), the top side support member 106 comprises a top side support expansion member 106a hinged at the bottom of the top support member and a top side support member 106b hinged at the right side of the top support member 102, the top side support expansion member 106a is hinged with the top side support member 106b, and the top side support expansion member 106a can drive the top side support member 106b to rotate around the hinged part of the top side support member 106b and the top side support top support member 102. The top side support member 206 comprises a top side support expansion piece 206a hinged to the bottom of the top support member 202 and a top side support piece 206b hinged to the right side of the top support member 202, the top side support expansion piece 206a is hinged to the top side support piece 206b, the top side support expansion piece 206a can drive the top side support piece 206b to rotate around the hinged portion of the top side support piece 206b and the top support member 202, and the top side support piece 106 and the top side support piece 206 support the side of the coal mine, so that the contact area between the top side support piece 106 and the coal mine roof is increased, and the support capacity is improved.
Further, a horizontal expansion piece 203a is arranged inside the base piece 203, the horizontal expansion piece 203a is connected with the base piece 103, and the horizontal expansion piece 203a can expand and contract longitudinally.
The base member 103 and the top support member 102 are both provided with a lateral expansion member 103a inside, and the lateral expansion member 103a can expand and contract toward the left side of the first support unit 100. The base piece 203 and the top support piece 202 are both internally provided with lateral expansion pieces 203b, the lateral expansion pieces 203b can expand and contract towards the left side of the second supporting unit 200, the lateral expansion pieces 103a and the lateral expansion pieces 203b can be hydraulic cylinders, and the preferential telescopic hydraulic cylinders are multi-stage and are used for abutting expansion parts of the lateral expansion pieces 103a and the lateral expansion pieces 203b against a hydraulic support on the left side of the supporting unit when the supporting unit is transversely displaced, so that the supporting unit is reset.
Based on the above, it is defined that in the initial state, the first supporting unit 100 and the second supporting unit 200 have a certain distance, at this time, the supporting member 202 is jacked up, the supporting member 102 is dropped, the horizontal expansion member 203a is controlled to pull the first supporting unit 100 to travel forward for a distance, which is smaller than the distance between the first supporting unit 100 and the second supporting unit 200 in the initial state, after the first supporting unit 100 travels for a distance, the supporting member 102 is jacked up, the supporting member 202 is dropped, and then the horizontal expansion member 203a is controlled to push the second supporting unit 200 to travel forward for a distance … … in a circulating manner, so that the triangular area supporting device can be jacked up and advanced alternately by the first supporting unit 100 and the second supporting unit 200, and the triangular area supporting device can be ensured to travel forward on the premise of continuously jacking up the roof of the coal mine, and vacant positions formed after the hydraulic support is withdrawn are filled up.
Example 3
Referring to fig. 8a to 8c, a third embodiment of the present invention, which is different from the first two embodiments, is: the second supporting units 200 may be provided with one or more groups, and when two or more groups of second supporting units 200 are provided, they are longitudinally arranged in parallel with the first supporting unit 100, and the horizontal telescopic members 203a of the remaining second supporting units 200 are connected to the base member 203 of the next second supporting unit 200 except the second supporting unit 200 adjacent to the first supporting unit 100.
When the second supporting units 200 are provided with two groups and more than or equal to 2 groups, the control mode that the first supporting units 100 and the second supporting units 200 alternately advance and the first supporting units 100 and the second supporting units 200 sequentially fall, advance and jack up in turn is as follows:
the first supporting unit 100 is defined as a first supporting unit 1, a second supporting unit 2 and a second supporting unit … …, wherein the first supporting unit 100 is defined as a first supporting unit, and the second supporting unit 200 is defined as a second supporting unit 1, a second supporting unit 2 and a second supporting unit 3, and the smallest distance is defined as a second supporting unit 1.
When the alternative traveling is required, the top supporting member 102 may be first controlled to fall down, and the horizontal telescopic member 203a of the second supporting unit 200 No. 1 may be controlled to pull the first supporting unit 100 to travel forward by a distance smaller than the distance between the first supporting unit 100 and the second supporting unit 200 No. 1 in the initial state, and the top supporting member 102 may be jacked up after the first supporting unit 100 travels by a distance.
And then the jacking piece 202 of the No. 1 second supporting unit 200 is dropped, the horizontal telescopic piece 203a of the No. 2 second supporting unit 200 is controlled to pull the No. 1 second supporting unit 200 to move forwards for a certain distance, the horizontal telescopic piece 203a of the No. 1 second supporting unit 200 can push the No. 1 second supporting unit 200 to move forwards during pulling, only the second supporting unit 200 can be extended without pushing force, then the jacking piece 202 is jacked, then the jacking piece 202 … … of the No. 2 second supporting unit 200 is dropped, the first supporting unit 100 and the plurality of second supporting units 200 can be jacked and moved in a circulating mode, the fact that the supporting device in the area can also move forwards on the premise of continuously jacking the coal mine roof is guaranteed, and vacant positions formed after the hydraulic supports are withdrawn are filled up.
It should be noted that the structures of the first supporting unit 100 and the plurality of second supporting units 200 are the same as those in embodiment 2, and the description thereof is omitted in this embodiment.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (7)
1. The utility model provides a novel unit is strutted to trigonum which characterized in that: the device comprises a vertical telescopic piece (201 or 101) which is vertically arranged, a top support piece (202 or 102) and a base piece (203 or 103) which are respectively connected with the top end and the bottom end of the vertical telescopic piece, and a side support piece (204 or 104) which is hinged with the top support piece; the side supporting pieces are connected with the base piece through a four-bar mechanism, and two ends of two vertical connecting rods of the four-bar mechanism are hinged with the side supporting pieces and the base piece respectively.
2. The new trigonal support unit of claim 1, wherein: the side support piece (204) is laterally hinged to the top support piece (202), a telescopic plate (202 a) capable of longitudinally extending and retracting is arranged inside the top support piece (202), and the telescopic plate (202 a) can extend and retract towards the front end and/or the rear end of the top support piece (202); the base piece (203) and the top support piece (202) are internally provided with lateral telescopic pieces (203 b), and the lateral telescopic pieces (203 b) can extend and retract towards the same side of the triangular region supporting unit.
3. The new trigonal support unit of claim 2, wherein: a horizontal telescopic piece (203 a) is arranged inside the base piece (203).
4. The new trigonal support unit of claim 1, wherein: the side supporting piece (104) is longitudinally hinged behind the top supporting piece (102), the base piece (103) and the top supporting piece (102) are internally provided with lateral telescopic pieces (103 a), and the lateral telescopic pieces can extend and retract towards the same side of the triangular region supporting unit.
5. The new trigonal support unit according to any one of claims 1 to 4, wherein: the top support piece (102 or 202) is hinged to a top side support piece (106 or 206), the top side support piece comprises a top side support expansion piece (106 a or 206 a) hinged to the bottom end of the top support piece, and a top side support piece (106 b or 206 b) hinged to the side part of the top support piece, and the top side support expansion piece is hinged to the top side support piece.
6. The new trigonal support unit of claim 1, wherein: when the novel triangular area supporting unit is provided with two groups and above, the novel triangular area supporting unit is longitudinally arranged side by side, and the horizontal telescopic piece of the previous novel triangular area supporting unit is connected with the foundation piece of the next novel triangular area supporting unit.
7. The new trigonal support unit of claim 1, wherein: the vertical telescopic piece is provided with at least one, and the top all with the lower extreme of kicking piece is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110244894.9A CN112796812A (en) | 2020-04-27 | 2020-04-27 | Novel triangular space supporting unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010343720.3A CN111365052A (en) | 2020-04-27 | 2020-04-27 | Novel triangular space supporting device |
| CN202110244894.9A CN112796812A (en) | 2020-04-27 | 2020-04-27 | Novel triangular space supporting unit |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010343720.3A Division CN111365052A (en) | 2020-04-27 | 2020-04-27 | Novel triangular space supporting device |
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| CN112796812A true CN112796812A (en) | 2021-05-14 |
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| CN202110244894.9A Pending CN112796812A (en) | 2020-04-27 | 2020-04-27 | Novel triangular space supporting unit |
| CN202010343720.3A Pending CN111365052A (en) | 2020-04-27 | 2020-04-27 | Novel triangular space supporting device |
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| CN202010343720.3A Pending CN111365052A (en) | 2020-04-27 | 2020-04-27 | Novel triangular space supporting device |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3236214C1 (en) * | 1982-09-30 | 1983-09-29 | Saarbergwerke AG, 6600 Saarbrücken | Method of withdrawing a self-advancing support system, in particular a shield support system |
| SU1700256A1 (en) * | 1989-07-14 | 1991-12-23 | Подмосковный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт | Method of dismantling powered support |
| CN2876332Y (en) * | 2005-12-19 | 2007-03-07 | 中国神华能源股份有限公司 | Supporter special for withdrawing |
| CN102011603A (en) * | 2010-10-30 | 2011-04-13 | 煤炭科学研究总院太原研究院 | Coal mine underground remote control triangle protective shield |
| CN102444416A (en) * | 2011-12-24 | 2012-05-09 | 中国煤炭科工集团太原研究院 | Fully mechanized mining face hydraulic support beam-type retracting device |
| CN202882972U (en) * | 2012-09-15 | 2013-04-17 | 中国煤炭科工集团太原研究院 | Along-groove stepping split type advanced hydraulic support frame group |
| CN205422757U (en) * | 2016-03-16 | 2016-08-03 | 郑州四维矿业机械有限责任公司 | Face -end support's back timber subassembly and face -end support |
| CN207568638U (en) * | 2017-12-20 | 2018-07-03 | 天地科技股份有限公司 | A kind of fully-mechanized mining working withdraws frame |
| CN207568639U (en) * | 2017-09-14 | 2018-07-03 | 中国神华能源股份有限公司 | Trigonum shielding apparatus |
| CN109538258A (en) * | 2019-01-23 | 2019-03-29 | 南京石诚井巷装备有限责任公司 | A kind of trigonum suspension device |
| CN212614810U (en) * | 2020-04-27 | 2021-02-26 | 南京石诚井巷装备有限责任公司 | Novel triangular space supporting device |
-
2020
- 2020-04-27 CN CN202110244894.9A patent/CN112796812A/en active Pending
- 2020-04-27 CN CN202010343720.3A patent/CN111365052A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3236214C1 (en) * | 1982-09-30 | 1983-09-29 | Saarbergwerke AG, 6600 Saarbrücken | Method of withdrawing a self-advancing support system, in particular a shield support system |
| SU1700256A1 (en) * | 1989-07-14 | 1991-12-23 | Подмосковный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт | Method of dismantling powered support |
| CN2876332Y (en) * | 2005-12-19 | 2007-03-07 | 中国神华能源股份有限公司 | Supporter special for withdrawing |
| CN102011603A (en) * | 2010-10-30 | 2011-04-13 | 煤炭科学研究总院太原研究院 | Coal mine underground remote control triangle protective shield |
| CN102444416A (en) * | 2011-12-24 | 2012-05-09 | 中国煤炭科工集团太原研究院 | Fully mechanized mining face hydraulic support beam-type retracting device |
| CN202882972U (en) * | 2012-09-15 | 2013-04-17 | 中国煤炭科工集团太原研究院 | Along-groove stepping split type advanced hydraulic support frame group |
| CN205422757U (en) * | 2016-03-16 | 2016-08-03 | 郑州四维矿业机械有限责任公司 | Face -end support's back timber subassembly and face -end support |
| CN207568639U (en) * | 2017-09-14 | 2018-07-03 | 中国神华能源股份有限公司 | Trigonum shielding apparatus |
| CN207568638U (en) * | 2017-12-20 | 2018-07-03 | 天地科技股份有限公司 | A kind of fully-mechanized mining working withdraws frame |
| CN109538258A (en) * | 2019-01-23 | 2019-03-29 | 南京石诚井巷装备有限责任公司 | A kind of trigonum suspension device |
| CN212614810U (en) * | 2020-04-27 | 2021-02-26 | 南京石诚井巷装备有限责任公司 | Novel triangular space supporting device |
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|---|---|
| CN111365052A (en) | 2020-07-03 |
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