A kind of along empty roadway supporting device

Abstract

The utility model is suitable for supporting equipment technical field provides a kind of along empty roadway supporting device, including two bottom plate, the top of two bottom plate is fixedly installed with multiple hydraulic cylinders;Respectively fixedly installed on multiple hydraulic cylinders for supporting the two support boxes of along empty roadway, the side of two support boxes is fixedly installed with multiple telescopic rods and is close to each other;Multiple springs are respectively fixedly installed on the inner wall of the bottom of two support boxes;Multiple support plates are respectively slidably installed on two support boxes, and the bottom of multiple support plates is respectively fixedly connected with the top of multiple springs;Clamping mechanism for fixing support plate is respectively installed on two support boxes.The along empty roadway supporting device provided in the scheme solves the problem that the traditional support plate is difficult to fully adhere to the along empty roadway when the inner wall of the upper end of the along empty roadway is uneven, resulting in uneven distribution of supporting force and insufficient stability.

Description

Technical Field

[0001] This utility model belongs to the technical field of support equipment, and in particular relates to a goaf-side roadway support device. Background Technology

[0002] Goaf retention is a method of preserving the original mining roadway along the edge of the goaf after the coal face has been mined. It aims to recover the protective coal pillars left in traditional mining methods. Certain technical means are used to re-support the roadway from the previous section for use in the next section. This method of retaining a roadway along the edge of the goaf at the original roadway location is called goaf retention. Inside the goaf retention roadway, support devices need to be installed to support the interior and protect the roadway.

[0003] Currently, the main support method for gob-side roadway retention is a hydraulic lifting frame combined with a support plate. The support plate is fixed to both sides of the gob-side roadway for support. However, when the inner wall at the upper end of the gob-side roadway is not smooth enough, it is difficult for the support plate to make sufficient contact with the gob-side roadway, resulting in uneven distribution of support force and insufficient support stability, which in turn affects the overall support effect and safety of the gob-side roadway. Utility Model Content

[0004] This utility model provides a goaf retaining support device, which aims to solve the problem mentioned in the background art that when the inner wall of the upper end of the goaf retaining is uneven, the traditional support plate is difficult to fully fit the goaf retaining, resulting in uneven distribution of support force and insufficient stability.

[0005] To solve the above problems, this utility model is implemented as follows: a goaf-side roadway support device, comprising: two base plates, each base plate having multiple hydraulic cylinders fixedly mounted on its top; two support boxes fixedly mounted on the multiple hydraulic cylinders for supporting the goaf-side roadway, with multiple telescopic rods fixedly mounted on the side of the two support boxes close to each other; multiple springs fixedly mounted on the inner walls of the bottom of the two support boxes; multiple support plates slidably mounted on the two support boxes, with the bottom of the multiple support plates fixedly connected to the top of the multiple springs; clamping mechanisms fixedly mounted on the two support boxes for fixing the support plates; and reinforcement mechanisms mounted on the two base plates for supporting the support boxes.

[0006] Preferably, the clamping mechanism includes: two screws threaded onto the support box, each screw having a plurality of first rotating rods fixedly mounted thereon; and two clamping plates rotatably mounted on one end of each of the two screws, each clamping plate having a plurality of anti-slip grooves.

[0007] Preferably, the reinforcement mechanism includes: a cylindrical body fixedly mounted on the top of the base plate, with a lead screw rotatably mounted on the inner wall of the bottom of the cylindrical body; a rotating shaft rotatably mounted on the cylindrical body, with a knob fixedly mounted at one end of the rotating shaft, and a plurality of second rotating rods fixedly mounted on the knob; a first bevel gear fixedly mounted on the rotating shaft; a second bevel gear fixedly sleeved on the lead screw, the second bevel gear meshing with the first bevel gear; and a threaded sleeve threaded onto the lead screw, with a reinforcement plate fixedly mounted on the top of the threaded sleeve, the top of the reinforcement plate contacting the bottom of the support box.

[0008] Preferably, a limiting groove is formed on the inner wall of each of the two cylinders, and a limiting block is slidably installed on the inner wall of each of the two limiting grooves. The two limiting blocks are respectively fixedly connected to the two threaded sleeves.

[0009] Preferably, the same wire mesh is fixedly installed on one side of the two support boxes that are close to each other, and the wire mesh is used to block falling objects.

[0010] Preferably, the inner walls on both sides of the two support boxes are provided with sliding grooves, and sliders are slidably installed on the inner walls of the multiple sliding grooves, and the multiple sliders are respectively fixedly connected to the multiple clamping plates.

[0011] Preferably, the wire mesh is made of stainless steel and is located above the plurality of telescopic rods.

[0012] Compared with related technologies, the goaf support device provided by this utility model has the following advantages:

[0013] Compared with existing technologies, the gob-side entry support device provided in this solution, through the use of multiple telescopic rods, allows the width of the support device to be adjusted according to the different requirements of gob-side entry. Through the use of multiple hydraulic cylinders, two support boxes can be raised, allowing them to contact the top inner walls on both sides of the gob-side entry for support. If the inner wall at the top of the gob-side entry is not smooth enough, the top of part of the support plate will be exposed outside the support box and support the gob-side entry, while the remaining support plate will be pressed into the support box. Because the bottom of the support plate is equipped with springs, the extension length of the support plate can be adjusted according to... The system adaptively adjusts to the condition of the inner wall at the upper end of the goaf retainer. This allows support plates to support areas not supported by the support box. The clamping mechanism can clamp and position multiple support plates to ensure their stability during use. The reinforcement mechanism provides auxiliary support to the support box to prevent insufficient support in case of hydraulic system failure, ensuring the safety of the device during use. The use of wire mesh prevents stones and other objects from falling from the upper end of the goaf retainer and directly impacting equipment or personnel below, thus improving the safety of the goaf retainer. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a goaf retention support device provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the main sectional view of a goaf retention support device provided by this utility model;

[0016] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure;

[0017] Figure 4 This is a three-dimensional structural diagram of the clamping plate in this utility model;

[0018] Figure 5 for Figure 2 The diagram shows an enlarged view of part B.

[0019] Reference numerals: 1. Base plate; 2. Hydraulic cylinder; 3. Support box; 4. Telescopic rod; 5. Spring; 6. Support plate; 7. Screw; 8. Clamping plate; 9. Slider; 10. Wire mesh; 11. Cylinder; 12. Lead screw; 13. Rotating shaft; 14. Knob; 15. First bevel gear; 16. Second bevel gear; 17. Screw sleeve; 18. Reinforcing plate; 19. Limiting block; 20. Anti-slip groove. Detailed Implementation

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification and the foregoing drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification or the foregoing drawings are used to distinguish different objects, not to describe a specific order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] This utility model embodiment provides a goaf-side roadway support device, such as Figure 1-5 As shown, the goaf retention support device includes: two base plates 1, with multiple hydraulic cylinders 2 fixedly installed on the top of each of the two base plates 1; two support boxes 3 fixedly installed on the multiple hydraulic cylinders 2 for supporting the goaf retention, with multiple telescopic rods 4 fixedly installed on the side of the two support boxes 3 that are close to each other; multiple springs 5 ​​fixedly installed on the inner bottom wall of the two support boxes 3; multiple support plates 6 slidably installed on the two support boxes 3, with the bottom of the multiple support plates 6 fixedly connected to the top of the multiple springs 5; clamping mechanisms installed on the two support boxes 3 for fixing the support plates 6; and reinforcement mechanisms assembled on the two base plates 1 for supporting the support boxes 3.

[0023] In this embodiment, when the device is in use, the base plate 1 is installed in the required position. After installation, multiple hydraulic cylinders 2 are activated to raise the two support boxes 3 until they contact the top inner walls of the goaf retainer on both sides. Then, a reinforcement mechanism can be used to provide auxiliary support for the support boxes 3 to prevent insufficient support from the support boxes 3 in case of hydraulic system failure, thus ensuring the safety of the device during use. If the inner wall of the upper end of the goaf retainer is not flat enough, the top of part of the support plate 6 will be exposed outside the support box 3 and support the goaf retainer, while the remaining support plate 6 will be pressed into the support box 3. Since the bottom of the support plate 6 is equipped with a spring 5, the extension length of the support plate 6 can be adaptively adjusted according to the condition of the inner wall of the upper end of the goaf retainer. In this way, the parts not supported by the support box 3 can be supported by the support plate 6. To ensure the support effect of the support plate 6 on the goaf retainer, a clamping mechanism can be used to clamp the support plate 6 tightly to ensure its stability during use.

[0024] In a further preferred embodiment of the present invention, the clamping mechanism includes: two screws 7 threadedly mounted on the support box 3, each of the two screws 7 having a plurality of first rotating rods fixedly mounted on it; and two clamping plates 8 rotatably mounted on one end of each of the two screws 7, each of the two clamping plates 8 having a plurality of anti-slip grooves 20.

[0025] In this embodiment, the clamping mechanism is used to fix the support plate 6. When fixing, the screws 7 on the front and rear sides are rotated. The two screws 7 will drive the two clamping plates 8 to move closer to each other. When the anti-slip grooves 20 on the two clamping plates 8 are tightly attached to the multiple support plates 6, the multiple support plates 6 can be fixed.

[0026] In a further preferred embodiment of this utility model, the reinforcing mechanism includes: a cylindrical body 11 fixedly mounted on the top of the base plate 1, with a lead screw 12 rotatably mounted on the bottom inner wall of the cylindrical body 11; a rotating shaft 13 rotatably mounted on the cylindrical body 11, with a knob 14 fixedly mounted at one end of the rotating shaft 13, and a plurality of second rotating rods fixedly mounted on the knob 14; a first bevel gear 15 fixedly mounted on the rotating shaft 13; a second bevel gear 16 fixedly sleeved on the lead screw 12, the second bevel gear 16 meshing with the first bevel gear 15; and a threaded sleeve 17 threadedly mounted on the lead screw 12, with a reinforcing plate 18 fixedly mounted on the top of the threaded sleeve 17, the top of the reinforcing plate 18 contacting the bottom of the support box 3.

[0027] In this embodiment, the reinforcement mechanism is used to support the support box 3. When the support box 3 needs to be supported, the operator can use multiple second rotating rods to rotate the knob 14. The knob 14 will drive the rotating shaft 13 to rotate, the rotating shaft 13 will drive the first bevel gear 15 to rotate, the first bevel gear 15 will drive the lead screw 12 to rotate through the second bevel gear 16, the lead screw 12 will drive the threaded sleeve 17 to move vertically, and the threaded sleeve 17 will drive the reinforcement plate 18 to move vertically until the top of the reinforcement plate 18 is attached to the bottom of the support box 3, providing auxiliary support for the support box 3. This is to prevent the support box 3 from not being able to provide sufficient support when the hydraulic system fails, and to ensure the safety of the device during use.

[0028] In a further preferred embodiment of the present invention, a limiting groove is provided on the inner wall of each of the two cylinders 11, and a limiting block 19 is slidably installed on the inner wall of each of the two limiting grooves. The two limiting blocks 19 are respectively fixedly connected to the two threaded sleeves 17.

[0029] In this embodiment, the use of the limiting groove and the limiting block 19 can ensure the stability of the screw sleeve 17 during the lifting process, so as to prevent the screw sleeve 17 from rotating during the lifting process. During the lifting process, the limiting block 19 connected to the screw sleeve 17 will slide vertically on the limiting groove.

[0030] In a further preferred embodiment of this utility model, the same wire mesh 10 is fixedly installed on one side of the two support boxes 3 that are close to each other, and the wire mesh 10 is used to block falling objects.

[0031] In this embodiment, the use of wire mesh 10 can prevent objects from falling from the upper end of the goaf and prevent them from directly hitting the equipment or personnel below.

[0032] In a further preferred embodiment of the present invention, the inner walls on both sides of the two support boxes 3 are provided with sliding grooves, and sliders 9 are slidably installed on the inner walls of the multiple sliding grooves, and the multiple sliders 9 are respectively fixedly connected to the multiple clamping plates 8.

[0033] In this embodiment, the stability of the clamping plate 8 during horizontal movement can be ensured by the combined use of the sliding groove and the slider 9. When the clamping plate 8 is moving horizontally, the slider 9 connected to the clamping plate 8 will also slide in the sliding groove.

[0034] In a further preferred embodiment of this utility model, the wire mesh 10 is made of stainless steel and is located above the plurality of telescopic rods 4.

[0035] In this embodiment, the stainless steel wire mesh 10 has good durability and corrosion resistance, is not easy to rust, and has a good service life.

[0036] In summary, compared with related technologies, this solution, through the use of multiple telescopic rods 4, allows the width of the support device to be adjusted according to different gob-side entry requirements. Through the use of multiple hydraulic cylinders 2, the two support boxes 3 can be raised, allowing them to contact the inner top walls of both sides of the gob-side entry, thus achieving support. If the inner wall at the upper end of the gob-side entry is not smooth enough, the top of part of the support plate 6 will be exposed outside the support box 3, supporting the gob-side entry, while the remaining support plate 6 will be pressed into the support box 3. Because the bottom of the support plate 6 is equipped with a spring 5, the extension length of the support plate 6 can be adjusted according to... The inner wall of the upper end of the goaf retainer is adaptively adjusted so that the parts not supported by the support box 3 can be supported by the support plate 6. The clamping mechanism can clamp and position multiple support plates 6 to ensure the stability of multiple support plates 6 during use. The reinforcement mechanism can provide auxiliary support for the support box 3 to prevent insufficient support for the support box 3 in case of hydraulic system failure, thus ensuring the safety of the device during use. The use of wire mesh 10 can prevent stones and other objects from falling from the upper end of the goaf retainer and prevent them from directly hitting the equipment or personnel below, thus improving the safety of the goaf retainer.

[0037] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A device for supporting a gob-side entry retaining, characterized in that, include: Two base plates, each with multiple hydraulic cylinders fixedly mounted on its top; Two support boxes for supporting the goaf-side roadway are fixedly installed on multiple hydraulic cylinders respectively. Multiple telescopic rods are fixedly installed on the side of the two support boxes that are close to each other. Multiple springs are respectively fixedly installed on the inner walls of the bottom of the two support boxes; Multiple support plates are slidably mounted on the two support boxes respectively, and the bottom of the multiple support plates is fixedly connected to the top of the multiple springs respectively; Clamping mechanisms are respectively installed on the two support boxes to fix the support plate; The reinforcement mechanism is respectively assembled on the two base plates to support the support box.

2. The longwall gob-side entry retaining support device of claim 1, wherein, The clamping mechanism includes: Two screws are threaded onto the support box, and multiple first rotating rods are fixedly installed on each of the two screws; Two clamping plates, each mounted on one end of one of the two screws, are rotated and rotated. Each clamping plate has multiple anti-slip grooves.

3. The longwall gob-side entry retaining support device of claim 1, wherein, The reinforcement mechanism includes: A cylinder is fixedly installed on the top of the base plate, and a lead screw is rotatably installed on the bottom inner wall of the cylinder; A rotating shaft mounted on the cylinder is rotated, and a knob is fixedly mounted on one end of the rotating shaft. Multiple second rotating rods are fixedly mounted on the knob. A first bevel gear fixedly mounted on the rotating shaft; A second bevel gear is fixedly sleeved on the lead screw, and the second bevel gear meshes with the first bevel gear; A threaded sleeve is threaded onto the lead screw, and a reinforcing plate is fixedly mounted on the top of the threaded sleeve. The top of the reinforcing plate is in contact with the bottom of the support box.

4. The longwall gob-side entry retaining support device of claim 3, wherein, Limiting grooves are provided on the inner walls of both cylinders, and limiting blocks are slidably installed on the inner walls of both limiting grooves. The two limiting blocks are respectively fixedly connected to the two threaded sleeves.

5. The gob-side entry retaining support device according to claim 1, wherein The two support boxes are fixedly installed with the same wire mesh on their adjacent sides, and the wire mesh is used to block falling objects.

6. The longwall gob-side entry retaining support device of claim 2, wherein, The inner walls on both sides of the two support boxes are provided with sliding grooves, and sliders are slidably installed on the inner walls of the multiple sliding grooves. The multiple sliders are respectively fixedly connected to the multiple clamping plates.

7. The longwall gob-side entry retaining support device of claim 5, wherein, The wire mesh is made of stainless steel and is located above the multiple telescopic rods.

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