CN212272253U - Combined door type support - Google Patents
Combined door type support Download PDFInfo
- Publication number
- CN212272253U CN212272253U CN202020804577.9U CN202020804577U CN212272253U CN 212272253 U CN212272253 U CN 212272253U CN 202020804577 U CN202020804577 U CN 202020804577U CN 212272253 U CN212272253 U CN 212272253U
- Authority
- CN
- China
- Prior art keywords
- type support
- top beam
- door type
- strip
- seat
- 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.)
- Active
Links
Images
Landscapes
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The utility model relates to a combined portal frame, which comprises a plurality of portal frame monomers, wherein the portal frame monomers are sequentially arranged in a front-back order, and two adjacent portal frame monomers in the front-back are connected through a connecting mechanism; the door type support single body consists of a top beam and two telescopic upright posts, wherein the top beam is a strip-shaped box body with an open top; the connecting mechanism comprises two connecting shafts which are arranged in a crossed manner, and the end parts of the two ends of each connecting shaft are hinged with connecting seats. The gate-type support has the advantages of low structural cost, convenience in installation, simple operation mode and easiness in operation and maintenance, solves the problems of the conventional gate-type support in gob-side entry retaining, better maintains the top plate of the reserved roadway, reduces the accident rate in the process of entry retaining due to the use of the inter-support connecting mechanism, and ensures the personal safety of underground operators.
Description
Technical Field
The utility model relates to a technical field is strutted in the pit, in particular to gob entry in the pit specifically is a combined gate-type support.
Background
The gob-side entry retaining process has practical significance for carrying out technical transformation on a production mine, easing the mining relation and prolonging the service life of the mine, and is also one of the main ways for improving the safety condition and the technical and economic indexes of a coal enterprise and increasing the yield, the gain and the loss of the coal enterprise. In order to respond to national requirements and simultaneously comply with the requirements of new product research and development, the portal type support has come to the end, is used for supporting the roadway needing to be reserved, has the advantages of low cost, high propelling speed and the like, and can solve the problem of instability of a top plate caused by repeated support of the top plate by the existing stepping self-moving advance hydraulic support when being applied to advance support of the roadway.
However, the existing portal supports also have some problems, which are specifically shown as follows: 1) the top beam of the gate-type hydraulic support needs to avoid the leakage parts of an anchor rod and an anchor cable at the top of the roadway in the use process, and the support distance of the adjacent gate-type hydraulic support is limited; 2) the moving distance of the roadway top plate and the roadway bottom plate within 40-100 meters behind the working surface is increased, and the upright columns on two sides of the portal support are stressed unevenly, so that the portal support is unstable; 3) the pressure of the top plate is uneven, and the pressure of a local area sharply increases to unload the upright posts of the individual door type support, so that the top plate finally sinks.
Disclosure of Invention
The utility model aims at solving the problems existing in the prior art and providing a combined door type support.
The utility model discloses a realize through following technical scheme:
a combined portal frame comprises a plurality of portal frame single bodies, wherein the portal frame single bodies are sequentially arranged from front to back, and two adjacent portal frame single bodies are connected through a connecting mechanism;
the door type support single body comprises a top beam, a left telescopic upright post and a right telescopic upright post, the top beam is a strip-shaped box body with an open top, two ends of the bottom of the strip-shaped box body are respectively fixed with a column cap, and connecting holes are formed in the front box wall and the rear box wall of the left end and the right end of the strip-shaped box body; the bottoms of the two telescopic stand columns are respectively provided with a base, and the tops of the two telescopic stand columns are respectively connected with two column caps on the strip-shaped box body;
the connecting mechanism comprises two connecting shafts which are arranged in a crossed manner, and the end parts of the two ends of each connecting shaft are hinged with connecting seats;
the concrete mode that connects through coupling mechanism between two portal trestle monomers is: the connecting seats at one ends of the two connecting shafts are rotatably connected in the left connecting hole and the right connecting hole of one top beam, and the connecting seats at the other ends of the two connecting shafts are rotatably connected in the left connecting hole and the right connecting hole of the other top beam.
The utility model discloses combined portal frame links together a plurality of door type support monomer through coupling mechanism, independent portal frame monomer makes up into a whole separately before making, the benefit of design like this, one of them has avoided the emergence that the portal frame emptyd the condition, it is the region that the roof plate comes to press acutely, portal frame no longer is independent operation separately, the great portal frame of individual atress can share the load to adjacent portal frame through connecting axle or connecting chain on, all back timber that is connected to together through coupling mechanism is like a big net and is lived the roof pocket.
The top beam comprises strip box and two cap posts, and the top beam design is the open box structure in upper portion, adaptation underworkings roof that can be better under the prerequisite that satisfies supporting strength, and the outer part that leaks of roof stock, anchor rope can be avoided to open box structure, and the design has four connecting holes that are used for connecting the erection joint seat altogether to the top beam both sides.
The connecting mechanism comprises 4 connecting seats capable of freely rotating in the top beam connecting hole and two rigid connecting shafts which are crossed to form an X shape, the connecting shafts and the connecting seats form a four-axis mechanism, the top beam is connected together through the connecting shafts without influencing the freedom degree of the top beam in the horizontal and vertical directions, and when the top beam and the roof anchor rod leak parts and are inevitably interfered, the inter-frame connecting mechanism connects the originally independent top beams into a flexible whole so as to adapt to the uneven condition of the roof.
The top plate pressure that the door type support back timber is close to goaf one side is far away more than one side in addition, and the door type support is often in unilateral stress state, can be connected the great one side of back timber pressurized and one side in addition of adjacent door type support back timber through coupling mechanism, reduces the roof settlement volume of back timber pressurized one side, improves the roof and struts the effect.
According to a preferable technical scheme, the connecting shaft comprises a rod body, connecting plates are arranged at two ends of the rod body respectively, and hinge holes are formed in the connecting plates; the connecting seat comprises a seat body, a hinge groove is formed in the seat body, pin shaft holes are formed in the positions, located on two sides of the hinge groove, of the seat body respectively, and a connecting column is arranged at the bottom of the seat body in an extending mode; a connecting plate on the connecting shaft is inserted into a hinge groove on the connecting seat, and a hinge pin is inserted after a hinge hole is aligned with a pin shaft hole; the connecting column on the connecting seat is rotatably inserted in the connecting hole of the top beam.
As a preferred solution, the connecting shaft is replaced by a connecting chain.
As the preferred technical scheme, a plurality of reinforcing rib plates are fixed between the front box wall and the rear box wall of the strip-shaped box body at intervals.
The gate-type support has the advantages of low structural cost, convenience in installation, simple operation mode and easiness in operation and maintenance, solves the problems of the conventional gate-type support in gob-side entry retaining, better maintains the top plate of the reserved roadway, reduces the accident rate in the process of entry retaining due to the use of the inter-support connecting mechanism, ensures the personal safety of underground operators and has strong popularization prospect.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention in any way.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the middle top beam of the present invention connected by the connecting mechanism.
Fig. 3 is a schematic structural diagram of the middle top beam of the present invention.
Fig. 4 is a schematic structural view of the middle connecting shaft of the present invention.
Fig. 5 is a schematic structural view of the middle connection seat of the present invention.
In the figure: the device comprises a 1-top beam, a 1-1-strip box body, a 1-2-reinforcing rib plate, a 1-3-column cap, a 1-4-connecting hole, a 2-telescopic column, a 3-base, a 4-connecting shaft, a 4-1-column body, a 4-2-connecting plate, a 4-3-hinged hole, a 5-connecting base, a 5-1-base body, a 5-2-hinged groove, a 5-3-pin shaft hole and a 5-4-connecting column.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the present invention will be further clearly and completely described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
As shown in fig. 1 and 2, a combined portal frame includes a plurality of portal frame monomers, the portal frame monomers are sequentially arranged in a front-back order, and two adjacent portal frame monomers are connected through a connecting mechanism.
The door type support single body comprises a top beam 1 and a left telescopic upright post and a right telescopic upright post 2, the top beam 1 adopts a strip-shaped box body 1-1 with an open top, as shown in figure 3, a plurality of reinforcing rib plates 1-2 are fixed between the front box wall and the rear box wall of the strip-shaped box body 1-1 at intervals, two ends of the bottom of the strip-shaped box body 1-1 are respectively fixed with a column cap 1-3, and the front box wall and the rear box wall of the left end and the right end of the strip-shaped box body 1-1 are respectively; the bottoms of the two telescopic upright posts 2 are respectively provided with a base 3, and the tops of the two telescopic upright posts 2 are respectively connected with two post caps on the strip-shaped box body 1-1.
As shown in fig. 2, the connection mechanism includes two connection shafts 4 or connection chains arranged in a cross manner, and the end portions of the two ends of the connection shafts 4 or the connection chains are hinged to connection seats 5. The connecting shaft 4 is of a rigid structure and comprises a rod body 4-1, two ends of the rod body 4-1 are respectively provided with a connecting plate 4-2, and the connecting plate 4-2 is provided with a hinge hole 4-3, as shown in fig. 4. The connecting chain is a flexible structure and is formed by sequentially connecting a plurality of ring bodies. The connecting seat 5 comprises a seat body 5-1, a hinge groove 5-2 is arranged on the seat body 5-1, pin shaft holes 5-3 are respectively arranged at the positions of the seat body 5-1, which are positioned at the two sides of the hinge groove 5-2, and a connecting column 5-4 is arranged at the bottom of the seat body 5-1 in an extending way, as shown in figure 5. When the connecting shaft 4 is hinged with the connecting seat 5, the connecting plate 4-2 on the connecting shaft 4 is inserted into the hinge groove 5-2 on the connecting seat 5, and the hinge hole 4-3 is aligned with the pin shaft hole 5-3 and then is inserted with the pin shaft. When the connecting chain is hinged with the connecting seat 5, the ring body at the outermost end of the connecting chain is inserted into the hinge groove 5-2 on the connecting seat 5, and the pin shaft is inserted after the ring opening is aligned with the pin shaft hole 5-3. When the connecting seat 5 is connected with the top beam 1, the connecting columns 5-4 can be rotatably inserted into the connecting holes 1-4.
The concrete mode that connects through coupling mechanism between two portal trestle monomers is: the two connecting shafts 4 or the connecting seats 5 at one ends of the connecting chains are rotatably connected in the left and right connecting holes 1-4 of one top beam 1, the connecting seats 5 at the other ends of the two connecting shafts 4 or the connecting chains are rotatably connected in the left and right connecting holes 1-4 of the other top beam 1, and after the connecting shafts 4 or the connecting chains are connected, the two connecting shafts 4 or the connecting chains are in an intersected X shape.
The technical solutions in the embodiments of the present invention have been clearly and completely described above, and the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Claims (4)
1. A combined door type support is characterized in that: the door type support comprises a plurality of door type support single bodies, wherein the door type support single bodies are sequentially arranged in a front-back order, and two door type support single bodies which are adjacent in front and back are connected through a connecting mechanism;
the door type support single body comprises a top beam, a left telescopic upright post and a right telescopic upright post, the top beam is a strip-shaped box body with an open top, two ends of the bottom of the strip-shaped box body are respectively fixed with a column cap, and connecting holes are formed in the front box wall and the rear box wall of the left end and the right end of the strip-shaped box body; the bottoms of the two telescopic stand columns are respectively provided with a base, and the tops of the two telescopic stand columns are respectively connected with two column caps on the strip-shaped box body;
the connecting mechanism comprises two connecting shafts which are arranged in a crossed manner, and the end parts of the two ends of each connecting shaft are hinged with connecting seats;
the concrete mode that connects through coupling mechanism between two portal trestle monomers is: the connecting seats at one ends of the two connecting shafts are rotatably connected in the left connecting hole and the right connecting hole of one top beam, and the connecting seats at the other ends of the two connecting shafts are rotatably connected in the left connecting hole and the right connecting hole of the other top beam.
2. The combination door brace of claim 1, wherein: the connecting shaft comprises a rod body, connecting plates are respectively arranged at two ends of the rod body, and hinge holes are formed in the connecting plates; the connecting seat comprises a seat body, a hinge groove is formed in the seat body, pin shaft holes are formed in the positions, located on two sides of the hinge groove, of the seat body respectively, and a connecting column is arranged at the bottom of the seat body in an extending mode; a connecting plate on the connecting shaft is inserted into a hinge groove on the connecting seat, and a hinge pin is inserted after a hinge hole is aligned with a pin shaft hole; the connecting column on the connecting seat is rotatably inserted in the connecting hole of the top beam.
3. The combination door brace of claim 1, wherein: the connecting shaft is replaced by a connecting chain.
4. A combination door-type support according to any one of claims 1-3, characterized in that: a plurality of reinforcing rib plates are fixed between the front box wall and the rear box wall of the strip-shaped box body at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020804577.9U CN212272253U (en) | 2020-05-15 | 2020-05-15 | Combined door type support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020804577.9U CN212272253U (en) | 2020-05-15 | 2020-05-15 | Combined door type support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212272253U true CN212272253U (en) | 2021-01-01 |
Family
ID=73878475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020804577.9U Active CN212272253U (en) | 2020-05-15 | 2020-05-15 | Combined door type support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212272253U (en) |
-
2020
- 2020-05-15 CN CN202020804577.9U patent/CN212272253U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201090230Y (en) | Fission top beam flexible support | |
| CN212272253U (en) | Combined door type support | |
| CN210068218U (en) | Multipurpose roadway advance support hydraulic support | |
| CN114837718A (en) | Integrated forepoling for head of reversed loader | |
| CN213016415U (en) | Advanced hydraulic support | |
| CN2128308Y (en) | Caving or network laying hydraulic chock | |
| CN216305981U (en) | Advance support hydraulic support with double-telescopic support function | |
| CN206246141U (en) | A kind of chain lift shed device of hydraulic pressure | |
| CN202690102U (en) | Folding hanging and moving hydraulic support equipment | |
| CN214366154U (en) | Special support for roadway retaining of fully mechanized coal mining face of coal mine | |
| CN201620899U (en) | Upper beam of hydraulic support | |
| CN218912915U (en) | Support structure for roadway support | |
| CN210738591U (en) | Coal mine tunnel strutting arrangement | |
| CN214944369U (en) | Mining portal frame of can walking | |
| CN220393144U (en) | Multifunctional crane boom of mine crane | |
| CN212867608U (en) | Compact advance support hydraulic support | |
| CN218716915U (en) | Multi-stage roof split support type roadway hydraulic support unit | |
| CN219158988U (en) | Large-span half-city gate type drilling and blasting trolley balancing device | |
| CN220081477U (en) | Adopt and fill parallel lotion and fill hydraulic support | |
| CN217380619U (en) | Once adopt full high electricity accuse hydraulic support | |
| CN211004376U (en) | Lifting platform device of two-arm hydraulic anchor rod drill carriage | |
| CN218563685U (en) | A anchor rope case roof beam truss structure for coal mine tunnel roof is strutted | |
| CN213392213U (en) | Movable cross beam for self-propelled mine lower support | |
| CN214822408U (en) | Universal connecting rod | |
| CN218293634U (en) | Shield type unit support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |