CN216691128U - Backplate for colliery hydraulic support - Google Patents
Backplate for colliery hydraulic support Download PDFInfo
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- CN216691128U CN216691128U CN202122991753.1U CN202122991753U CN216691128U CN 216691128 U CN216691128 U CN 216691128U CN 202122991753 U CN202122991753 U CN 202122991753U CN 216691128 U CN216691128 U CN 216691128U
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- steel
- plate
- hydraulic support
- coal mine
- protective plate
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Abstract
The utility model discloses a protective plate for a coal mine hydraulic support, which comprises a protective plate, wherein a connecting steel structure is arranged in a groove above the protective plate, the connecting steel structure is fixed on the protective plate through a first connecting bolt and a second connecting bolt, externally-coated steel plates are arranged on the back surface and the peripheral side surfaces of the protective plate, a connecting shaft sleeve is arranged in an extending boss below the protective plate, the connecting steel structure is made of Q690D welding structural steel, an outwardly-extending boss structure is connected with a support plate, the root parts of bosses at two ends of the connecting steel structure are connected with one end of a hydraulic rod, the protective plate is a composite structural plate formed by glass fiber and epoxy resin, reinforcing steel bars are arranged in the middle of the protective plate, a notch is arranged in the middle of each reinforcing steel bar, the externally-coated steel plate is a wear-resistant steel plate, the protective plate is respectively bonded and fixed with the externally-coated steel plate and the connecting steel structure through epoxy adhesive, and the first connecting bolt and the second connecting bolt are both SCM435, the shaft sleeve is made of wear-resistant steel and is internally connected with a hydraulic rod supporting plate.
Description
Technical Field
The utility model relates to the technical field of coal mine hydraulic supports, in particular to a guard plate for a coal mine hydraulic support.
Background
The hydraulic support is mainly used for a horizontal plane and a gently inclined thick coal seam with the angle less than or equal to 10 degrees, is a long-wall fully-mechanized mining face for once caving coal mining and full-height mining along a bottom plate, and is also suitable for a horizontal layered caving coal fully-mechanized mining face of a steeply inclined super-thick coal seam.
In the prior art, the protective plate for the coal mine hydraulic support adopts a full-steel welding structure, the whole weight of the whole protective plate can reach 3 to 3.5 tons, and when the cantilever is stretched to the maximum length when the hydraulic support is applied, the unstable phenomenon is easily generated in the moving and operating process of the equipment due to the overweight of the protective plate. The equipment can be moved only after the guard plate is completely folded during each movement, and the operation process is complicated.
SUMMERY OF THE UTILITY MODEL
According to the technical problem that needs solve, provide a backplate for colliery hydraulic support.
In order to achieve the purpose, the utility model discloses a protective plate for a coal mine hydraulic support, which comprises a protective plate, wherein a connecting steel structure is arranged in a groove above the protective plate, the connecting steel structure is fixed on the protective plate through a first connecting bolt and a second connecting bolt, outer coated steel plates are arranged on the back surface and the peripheral side surfaces of the protective plate, and a connecting shaft sleeve is arranged in an extending boss below the protective plate.
Furthermore, the material of the connecting steel structure is Q690D welding structural steel, the outwards extending boss structure is connected with the supporting plate, and the root parts of bosses at two ends of the connecting steel structure are in U-shaped structures and are connected with one end of the hydraulic rod.
Furthermore, reinforcing ribs are arranged in the middle of the guard plate, and a notch is formed in the middle of each reinforcing rib.
Still further, the outer clad steel plate material is a wear-resistant steel plate.
Furthermore, the connecting steel structure and the guard plate are fixed by epoxy adhesive in an adhering mode.
Furthermore, the outer coating steel plate and the guard plate are bonded and fixed through epoxy adhesive.
Further, the materials of the first connecting bolt and the second connecting bolt are both SCM435 alloy steel.
Further, the number of the first connecting bolts is at least 8, and the number of the second connecting bolts is at least 7.
Furthermore, the shaft connecting sleeve is made of wear-resistant steel, and a hydraulic rod supporting plate is connected inside the shaft connecting sleeve.
Has the advantages that: the utility model discloses a protective plate for a coal mine hydraulic support, which meets the application performance and reduces the weight requirement at the same time by combining the performance advantages of an epoxy fiber composite material and a structural design, wherein the total weight can be reduced by 50-60%, a new structure has detachable interchangeability and structural interchangeability, and the protective plate made of the composite material has aging resistance and corrosion resistance.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a front view of a guard plate for a coal mine hydraulic support according to the present invention.
FIG. 2 is a left side view of the guard plate for the coal mine hydraulic support according to the present invention.
FIG. 3 is a sectional view of the internal structure A-A of the guard plate for the coal mine hydraulic support.
In the figure: 1 is a connecting steel structure; 2 is an outer clad steel plate; 3 is a guard plate; 4 is a connecting shaft sleeve; 5 is a first connecting bolt; and 6 is a second connecting bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.
As shown in figure 1, the protective plate for the coal mine hydraulic support comprises a protective plate 3, a connecting steel structure 1 is arranged in a groove above the protective plate 3, the connecting steel structure 1 is fixed on the protective plate 3 through a first connecting bolt 5 and a second connecting bolt 6, outer coating steel plates 2 are arranged on the back face and the peripheral side face of the protective plate 3, and a connecting shaft sleeve 4 is arranged inside an extending boss below the protective plate 3.
As shown in figure 2, the material of the connecting steel structure 1 is Q690D welded structural steel, the outwards extending boss structure is connected with the supporting plate, and the U-shaped structures at the root parts of bosses at two ends of the connecting steel structure are connected with one end of the hydraulic rod, so that the integral structural strength is ensured.
The outer coated steel plate 2 is made of a wear-resistant steel plate, so that the surface wear resistance and the surface conductivity of the composite material are improved.
Connect between steel construction 1 and the backplate 3 and fix through the epoxy adhesive bonding, it is fixed through the epoxy adhesive bonding between outer steel sheet 2 and the backplate 3 to cover, makes its inseparable laminating, further increases joint strength on bolted connection's basis.
The first connecting bolt 5 and the second connecting bolt 6 are both made of SCM435 alloy steel, the strength of the bolt made of the materials can reach 12.9 levels, and the service life of the bolt is prolonged.
The number of the first connecting bolts 5 is at least 8, and the number of the second connecting bolts 6 is at least 7.
Wherein, the material of shaft coupling sleeve 4 is wear-resisting steel, and the inside connection hydraulic stem backup pad of shaft coupling sleeve 4 increases the life of structure.
The working principle is as follows: the utility model provides a backplate for colliery hydraulic support, backplate 3 is the composite construction board that glass fiber and epoxy constitute, be provided with the material in the recess of backplate 3 top and be the connection steel construction 1 of Q690D welded structure steel, it fixes on backplate 3 through first connecting bolt 5 and second connecting bolt 6 to connect steel construction 1, it all is used for joint support board to connect 8 extension bosss in total at 1 both ends of steel construction and middle part, both ends extend the one end that respectively is provided with a "U" type structure connection hydraulic stem between the boss root, and 3 laminating parts of backplate use the epoxy adhesive bonding in addition between, 3 backs of backplate and all around the side be provided with the steel sheet 2 that covers outward, also use the epoxy adhesive bonding, the backplate below is extended the inside even axle sleeve that is provided with of boss, a backup pad for connecting the hydraulic stem backup pad. When the hydraulic stem is working, the guard plate 3 and the hydraulic stem support plate can be unfolded at a certain angle. According to the utility model, the guard plate material is improved on the basis of the original coal mine hydraulic support, so that the weight requirement is reduced, the movement stability and the operation stability of the equipment are improved under the condition that the original functions and strength are not changed, and when the equipment needs to move, the hydraulic rod retracts the guard plate and the hydraulic rod supporting plate.
The points to be explained are as follows: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," "connecting," and "connecting" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be directly connected, and "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed; second, in this document, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.
Claims (9)
1. The utility model provides a backplate for colliery hydraulic support, includes backplate (3), its characterized in that: be provided with in the recess of backplate (3) top and connect steel construction (1), connect steel construction (1) to fix on backplate (3) through first connecting bolt (5) and second connecting bolt (6), backplate (3) back and side all around are provided with and cover steel sheet (2) outward, backplate (3) below is extended boss inside and is provided with axle sleeve (4) even.
2. The cover sheet for a coal mine hydraulic support according to claim 1, wherein: the connecting steel structure (1) is made of Q690D welding structural steel, the outwards extending boss structure is connected with the supporting plate, and the U-shaped structures at the root parts of bosses at the two ends of the connecting steel structure (1) are connected with one end of the hydraulic rod.
3. The cover sheet for a coal mine hydraulic support according to claim 1, wherein: reinforcing ribs are arranged in the middle of the guard plate (3), and a notch is formed in the middle of each reinforcing rib.
4. The cover sheet for a coal mine hydraulic support according to claim 1, wherein: the outer coating steel plate (2) is made of a wear-resistant steel plate.
5. The cover sheet for a coal mine hydraulic support according to claim 1, wherein: the connecting steel structure (1) and the guard plate (3) are bonded and fixed through epoxy adhesive.
6. The cover sheet for a coal mine hydraulic support according to claim 1, wherein: the outer coating steel plate (2) and the guard plate (3) are bonded and fixed through an epoxy adhesive.
7. The cover sheet for a coal mine hydraulic support according to claim 1, wherein: the first connecting bolt (5) and the second connecting bolt (6) are both made of SCM435 alloy steel.
8. The cover sheet for a coal mine hydraulic support according to claim 7, wherein: the number of the first connecting bolts (5) is at least 8, and the number of the second connecting bolts (6) is at least 7.
9. The cover sheet for a coal mine hydraulic support according to claim 1, wherein: the connecting shaft sleeve (4) is made of wear-resistant steel, and the connecting shaft sleeve (4) is internally connected with a hydraulic rod supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122991753.1U CN216691128U (en) | 2021-12-01 | 2021-12-01 | Backplate for colliery hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122991753.1U CN216691128U (en) | 2021-12-01 | 2021-12-01 | Backplate for colliery hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216691128U true CN216691128U (en) | 2022-06-07 |
Family
ID=81836734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122991753.1U Active CN216691128U (en) | 2021-12-01 | 2021-12-01 | Backplate for colliery hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216691128U (en) |
-
2021
- 2021-12-01 CN CN202122991753.1U patent/CN216691128U/en active Active
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