Roadway triangular area supporting bracket with three-stage telescopic columns

Abstract

The roadway triangular area supporting support is arranged at a roadway triangular area and comprises a top beam, a base and a stand column and further comprises a three-stage telescopic assembly and a side supporting assembly, the three-stage telescopic assembly comprises a first-stage hydraulic cylinder, a second-stage hydraulic cylinder and a third-stage hydraulic cylinder, one end of the first-stage hydraulic cylinder is connected with one side of the base, and the other end of the second-stage hydraulic cylinder is connected with the other side of the stand column. The second-stage hydraulic cylinder is coaxially arranged in the first-stage hydraulic cylinder, the third-stage hydraulic cylinder is coaxially arranged in the second-stage hydraulic cylinder, and the end, away from the base, of the third-stage hydraulic cylinder is connected with the top beam; the side supporting assembly comprises an inclined supporting jack and a baffle, the fixed end of the inclined supporting jack is connected with one side of the base, the telescopic end of the inclined supporting jack is connected with the baffle, and the baffle is used for supporting the side wall of the roadway. The three-stage telescopic assembly is used for replacing a connecting rod mechanism to solve the problem that when the support is contracted, the hinged position of the connecting rod mechanism stretches out the end of the top beam and the end of the base and makes contact with the side wall of a roadway easily, and therefore the support is damaged or a leakage net is scraped to cause potential safety hazards.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic support technology, and specifically relates to a roadway triangular area support support with three-stage telescopic columns. Background Technology

[0002] Coal mining equipment consists of hydraulic supports, coal mining machines, and transport mechanisms. Hydraulic supports, as the main equipment in fully mechanized coal mining, account for over 70% of the total investment in fully mechanized mining equipment and are crucial for safe and efficient production at the mining face. The top and bottom plates of the hydraulic supports must adapt to the coal seam environment underground, providing a safe working space for operators and an effective power source for the mining and transport equipment, determining the normal advance speed of the equipment. Therefore, hydraulic supports are a key piece of equipment for the success or failure of achieving high production and efficiency at a fully mechanized mining face.

[0003] During fully mechanized mining operations, hydraulic supports are distributed throughout the coal face to perform processes such as support, roof cutting, self-movement, and conveyor pushing. Together with high-power coal mining machines and high-capacity flexible scraper conveyors, they form a comprehensive mechanized system for the longwall face. For example, Chinese invention patent CN103485802A discloses a hydraulic support, specifically comprising a base, a top beam, and two front and two rear columns positioned between the base and the top beam. It also includes a shield beam, a first connecting rod, and a second connecting rod located below the top beam. The top beam is an integral structure. The first end of the shield beam is hinged to the first hinge point of the top beam. The first ends of the first and second connecting rods are respectively hinged to the second and third hinge points of the second end of the shield beam. The second ends of the first and second connecting rods are respectively hinged to the fourth and fifth hinge points of the base. When using the hydraulic support of this invention, since the top beam of the hydraulic support is an integral structure, it is beneficial to reduce the size of the top beam. There is no need to install balancing jacks between the shield beam and the top beam, reducing structural complexity, saving costs, and also facilitating space saving and reducing overall size for easier underground transportation. However, the second and third hinge points of the first and second connecting rods will extend the ends of the top beam and base when the support moves or retracts, making them prone to contact with the roadway sidewall, thereby damaging the support or scratching the mesh and causing safety hazards. Summary of the Invention

[0004] Based on this, it is necessary to provide a roadway triangular area support support with three-stage telescopic columns to address the problem that the second and third hinge points of the first and second links will extend the ends of the top beam and base when the support moves or retracts, which may easily come into contact with the roadway sidewall, thereby damaging the support or causing a safety hazard.

[0005] To achieve the above objectives, the present invention adopts the following solution:

[0006] A roadway triangular support frame with three-stage telescopic columns is installed in the roadway triangular area. It includes a top beam, a base, and columns disposed between the top beam and the base, with the columns symmetrically arranged on both sides of the base. It also includes a three-stage telescopic assembly and a side support assembly. The three-stage telescopic assembly includes a primary hydraulic cylinder, a secondary hydraulic cylinder, and a tertiary hydraulic cylinder. One end of the primary hydraulic cylinder is connected to one side of the base. The secondary hydraulic cylinder is coaxially disposed within the primary hydraulic cylinder and engages with it for limiting. The tertiary hydraulic cylinder is coaxially disposed within the secondary hydraulic cylinder and engages with it for limiting. The end of the tertiary hydraulic cylinder away from the base is connected to the top beam. The side support assembly includes an inclined support jack and a baffle. The fixed end of the inclined support jack is connected to the side of the base away from the three-stage telescopic assembly, and the telescopic end of the inclined support jack is connected to the baffle. The baffle is used to support the sidewall of the roadway.

[0007] Preferably, a first limiting ring is provided on the inner side of the end of the primary hydraulic cylinder away from the base, and a first fixing ring is provided on the outer side of the end of the secondary hydraulic cylinder away from the top beam, wherein the first limiting ring and the first fixing ring are mutually limiting and cooperating.

[0008] Preferably, a second limiting ring is provided on the inner side of the end of the secondary hydraulic cylinder away from the base, and a second fixing ring is provided on the outer side of the end of the tertiary hydraulic cylinder away from the top beam, with the second limiting ring and the second fixing ring engaging in a limiting cooperation.

[0009] Preferably, the end of the three-stage hydraulic cylinder away from the base is provided with a cross connector, and the end of the cross connector away from the three-stage hydraulic cylinder is connected to the top beam.

[0010] Preferably, the side support assembly includes a stabilizing member, one end of which is connected to the inclined support jack, and the other end of which is connected to the base.

[0011] Preferably, the stabilizing component includes a clamp and a fastening jack. The clamp is detachably connected to the middle of the inclined support jack, and the telescopic end of the fastening jack is connected to the clamp, while the other end is connected to the base.

[0012] Preferably, the telescopic end of the inclined support jack is provided with a spherical support, and the end of the spherical support away from the inclined support jack is connected to the baffle.

[0013] Preferably, the column is inclined in the vertical direction away from the three-stage telescopic assembly.

[0014] The technical solution adopted in this application can achieve the following beneficial effects:

[0015] By using a three-stage telescopic assembly instead of a linkage mechanism, the problem of the extension of the top beam and the base at the hinge of the linkage mechanism when the support moves or retracts is solved. This extension can easily come into contact with the sidewall of the roadway, thereby damaging the support or causing it to slip through and create safety hazards.

[0016] A side support component is installed on one side of the base column to solve the problems of difficult support of the sidewalls of the triangular roadway, resulting in low safety and support coefficient. Attached Figure Description

[0017] Figure 1 This is an overall side view of the roadway triangular support bracket with three-stage telescopic columns disclosed in the embodiments of this application.

[0018] Figure 2 This is a side cross-sectional view of the roadway triangular area support bracket with three-stage telescopic columns disclosed in the embodiments of this application.

[0019] Figure 3 This is a side view of the telescopic component of a roadway triangular support bracket with three-stage telescopic columns disclosed in an embodiment of this application.

[0020] The components include: top beam 110, base 120, column 130, three-stage telescopic assembly 200, first-stage hydraulic cylinder 210, first limiting ring 211, second-stage hydraulic cylinder 220, first fixing ring 221, second limiting ring 222, third-stage hydraulic cylinder 230, second fixing ring 231, side support assembly 300, inclined support jack 310, baffle 320, stabilizing component 330, clamp 331, and fastening jack 332. Detailed Implementation

[0021] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0022] It should be noted that when a device is considered to be "connected" to another device, it can be directly connected to the other device or there may be an intervening device present. The terms "inside," "top," "upper," "lower," "above," "below," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] 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 of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] See Figures 1 to 3 This application provides a roadway triangular support bracket with three-stage telescopic columns, installed in the roadway triangular area. It includes a top beam 110, a base 120, and columns 130 disposed between the top beam 110 and the base 120, with the columns 130 symmetrically arranged on both sides of the base 120. It also includes a three-stage telescopic assembly 200 and a side support assembly 300. The three-stage telescopic assembly 200 includes a primary hydraulic cylinder 210, a secondary hydraulic cylinder 220, and a tertiary hydraulic cylinder 230. One end of the primary hydraulic cylinder 210 is connected to one side of the base 120, and the secondary hydraulic cylinder 220 is coaxially disposed on the primary hydraulic cylinder 230. The third-stage hydraulic cylinder 230 is coaxially arranged inside the second-stage hydraulic cylinder 220 and is limited to the second-stage hydraulic cylinder 220. The end of the third-stage hydraulic cylinder 230 away from the base 120 is connected to the top beam 110. The side support assembly 300 includes an inclined support jack 310 and a baffle 320. The fixed end of the inclined support jack 310 is connected to the side of the base 120 away from the third-stage telescopic assembly 200, and the telescopic end of the inclined support jack 310 is connected to the baffle 320. The baffle 320 is used to support the sidewall of the roadway.

[0025] Specifically, the support of the triangular area of ​​the roadway is usually made of wood. Wood support is labor-intensive and has a large workload. When using hydraulic supports, it is difficult to achieve the support effect due to space constraints. To achieve simplicity and convenience, the top beam 110 and the base 120 are both connected to the column 130. The connection method adopts spherical bearings, spherical hinges, etc., and four sets of columns 130 are set up and symmetrically arranged on both sides of the base 120. One set of three-stage telescopic component 200 is set up (when the three-stage telescopic component 200 rises, the three-stage hydraulic cylinder 230 rises first, and after rising to the limit stroke, it drives the second-stage hydraulic cylinder 220 to rise until the second-stage hydraulic cylinder 220 reaches the limit stroke). It is located between the two sets of columns 130 near the center line of the roadway (the center line of the roadway is the center line of the roadway direction). The inclined support jack 310 is set at an angle. The telescopic end of the inclined support jack 310 is rotatably connected to the baffle 320. The cross-sectional area of ​​the baffle 320 is adjusted according to the support area.

[0026] The roadway triangular support frame with three-stage telescopic columns is retracted and transported to the roadway triangular area. The top beam 110 raises the three-stage telescopic components 200 and the columns 130 according to the slope of the top of the triangular area (based on the distance between the top and bottom of the roadway). When the top beam 110 is raised, one side of the three-stage telescopic components 200 first contacts the top of the roadway. Then, by adjusting the height of the columns 130, the top beam 110 is made to fully contact the top of the roadway. After the support is completed, the angle of the baffle 320 is adjusted to make it parallel to the sidewall of the roadway. By extending the inclined support jack 310, the baffle 320 is made to contact the sidewall of the roadway, thereby providing support.

[0027] The technical solution of this application, which adopts a roadway triangular area support bracket with three-stage telescopic columns, can achieve the following beneficial effects:

[0028] By using a three-stage telescopic assembly 200 instead of a linkage mechanism, the problem of the extension of the top beam 110 and the base 120 at the hinge of the linkage mechanism when the support moves or retracts is solved. This extension can easily come into contact with the sidewall of the roadway, thereby damaging the support or causing it to be scratched and leaking, thus creating a safety hazard.

[0029] A side support component 300 is installed on one side of the base 120 and the column 130 to solve the problem of difficult support of the sidewall of the triangular roadway, and the low safety and support coefficient.

[0030] Based on the above scheme, a first limiting ring 211 is provided on the inner side of the end of the first-stage hydraulic cylinder 210 away from the base 120, and a first fixing ring 221 is provided on the outer side of the end of the second-stage hydraulic cylinder 220 away from the top beam 110. The first limiting ring 211 is in a limiting cooperation with the first fixing ring.

[0031] The inner diameter of the first limiting ring 211 is the same as the outer diameter of the secondary hydraulic cylinder 220, and the outer diameter of the first limiting ring 211 is the same as the inner diameter of the primary hydraulic cylinder 210. The first limiting ring 211 is located at the end of the primary hydraulic cylinder 210 away from the base 120. The first fixing ring 221 is located at the end of the secondary hydraulic cylinder 220 close to the base 120, and the inner and outer diameters of the first fixing ring 221 are the same as the inner and outer diameters of the first limiting ring 211. When the secondary hydraulic cylinder 220 extends upward along the inner wall of the primary hydraulic cylinder 210, the first fixing ring 221 slides upward from the end of the primary hydraulic cylinder 210 close to the base 120 under the drive of the secondary hydraulic cylinder 220. When the first fixing ring 221 contacts the first limiting ring 211, it stops rising, thereby playing a limiting role and solving the problem of the secondary hydraulic cylinder 220 rising and separating from the primary hydraulic cylinder 210 due to operational errors.

[0032] Furthermore, a second limiting ring 222 is provided on the inner side of the end of the secondary hydraulic cylinder 220 away from the base 120, and a second fixing ring 231 is provided on the outer side of the end of the tertiary hydraulic cylinder 230 away from the top beam 110. The second limiting ring 222 and the second fixing ring 231 are engaged in a limiting cooperation.

[0033] The inner diameter of the second limiting ring 222 is the same as the outer diameter of the third-stage hydraulic cylinder 230, and the outer diameter of the second limiting ring 222 is the same as the inner diameter of the second-stage hydraulic cylinder 220. The second limiting ring 222 is located at the end of the second-stage hydraulic cylinder 220 away from the base 120. The second fixing ring 231 is located at the end of the third-stage hydraulic cylinder 230 close to the base 120, and both the inner and outer diameters of the second fixing ring 231 are the same as the inner and outer diameters of the second limiting ring 222. When the third-stage hydraulic cylinder 230 extends upward along the inner wall of the second-stage hydraulic cylinder 220, the second… Driven by the third-stage hydraulic cylinder 230, the fixed ring 231 slides upward from the end of the second-stage hydraulic cylinder 220 near the base 120. When the second fixed ring 231 contacts the second limiting ring 222, the second fixed ring 231 drives the second limiting ring 222 to continue to rise, thereby causing the second-stage hydraulic cylinder 220 to slide upward along the first-stage hydraulic cylinder 210 until the third-stage telescopic component 200 reaches the preset height or the first limiting ring 211 contacts the first fixed ring 221, thus playing a limiting role and solving the problem of the third-stage telescopic component 200 detaching when rising due to operational errors.

[0034] In the above scheme, to achieve convenient support, a cross connector is provided at the end of the three-stage hydraulic cylinder 230 away from the base 120, and the end of the cross connector away from the three-stage hydraulic cylinder 230 is connected to the top beam 110. The cross connector (any commonly used hydraulic support connector can be used) connects the top beam 110 and the three-stage hydraulic cylinder 230 respectively, making the adjustment of the top beam 110 simpler and more convenient through force transmission.

[0035] Based on the above solution, the side support assembly 300 includes a stabilizing member 330, one end of which is connected to the inclined support jack 310, and the other end is connected to the base 120. The stabilizing member 330 includes a clamp 331 and a fastening jack 332. The clamp 331 is detachably connected to the middle of the inclined support jack 310, and the telescopic end of the fastening jack 332 is connected to the clamp 331, while the other end is connected to the base 120.

[0036] The clamp 331 is connected to the fixed end of the inclined support jack 310 away from the base 120. The two ends of the fastening jack 332 are respectively hinged to the clamp 331 and the base 120 through ear plates or other means. The end of the fastening jack 332 away from the clamp 331 is set at the column 130 and connected to the base 120. By adjusting the length of the fastening jack 332, the inclined support jack 310 is driven to rotate along the hinge (the hinge between the inclined support jack 310 and the base 120), thereby changing the support angle of the inclined support jack 310, thereby improving the stability of the support and solving the problem of poor support effect caused by the included angle between the inclined support jack 310 and the baffle 320.

[0037] Furthermore, the telescopic end of the inclined support jack 310 is provided with a spherical support, and the end of the spherical support away from the inclined support jack 310 is connected to the baffle 320. The spherical support is connected to the lower end face of the baffle 320 at the end of the inclined support jack 310 away from the base 120. When the baffle 320 contacts the sidewall of the triangular area of ​​the roadway, the baffle 320 is compressed, causing the spherical support to automatically adjust its angle, thereby achieving automatic adjustment and solving the problem of reduced support area caused by the angle of the baffle 320.

[0038] Based on the above scheme, the column 130 is inclined in the vertical direction away from the three-stage telescopic assembly 200. By inclining the column 130, after the top beam 110 contacts the top of the roadway, the column 130 and the top beam 110 are perpendicular, thereby making the support more stable, improving the ultimate bearing capacity and effective bearing capacity of the column 130, and solving the problem that the angle between the column 130 and the top beam 110 is an acute or obtuse angle, which leads to a reduction in the effective bearing capacity of the column 130.

[0039] The above-described embodiments merely illustrate the device deployment method of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those skilled in the art, several adjustments and improvements can be made without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A roadway triangular support frame with three-stage telescopic columns, installed in the roadway triangular area, comprising a top beam, a base, and columns disposed between the top beam and the base, wherein the columns are symmetrically arranged on both sides of the base, characterized in that, Also includes: The three-stage telescopic assembly includes a primary hydraulic cylinder, a secondary hydraulic cylinder, and a tertiary hydraulic cylinder. One end of the primary hydraulic cylinder is connected to one side of the base. The secondary hydraulic cylinder is coaxially disposed within the primary hydraulic cylinder and is in a limiting fit with it. The tertiary hydraulic cylinder is coaxially disposed within the secondary hydraulic cylinder and is in a limiting fit with the secondary hydraulic cylinder. The end of the tertiary hydraulic cylinder away from the base is connected to the top beam. as well as A side support assembly, comprising an inclined support jack and a baffle, wherein the fixed end of the inclined support jack is connected to the base on the side away from the three-stage telescopic assembly, and the telescopic end of the inclined support jack is connected to the baffle, the baffle being used to support the sidewall of the roadway.

2. The roadway triangular zone support frame with three-stage telescopic columns according to claim 1, characterized in that, A first limiting ring is provided on the inner side of the end of the primary hydraulic cylinder away from the base, and a first fixing ring is provided on the outer side of the end of the secondary hydraulic cylinder away from the top beam. The first limiting ring and the first fixing ring are mutually limiting and cooperating.

3. The roadway triangular zone support frame with three-stage telescopic columns according to claim 2, characterized in that, A second limiting ring is provided on the inner side of the end of the secondary hydraulic cylinder away from the base, and a second fixing ring is provided on the outer side of the end of the tertiary hydraulic cylinder away from the top beam. The second limiting ring and the second fixing ring are engaged in a limiting cooperation.

4. The roadway triangular zone support frame with three-stage telescopic columns according to claim 1, characterized in that, The end of the three-stage hydraulic cylinder away from the base is provided with a cross connector, and the end of the cross connector away from the three-stage hydraulic cylinder is connected to the top beam.

5. The roadway triangular zone support frame with three-stage telescopic columns according to claim 1, characterized in that, The side support assembly includes a stabilizing member, one end of which is connected to the inclined support jack, and the other end is connected to the base.

6. The roadway triangular zone support frame with three-stage telescopic columns according to claim 5, characterized in that, The stabilizing components include a clamp and a fastening jack. The clamp is detachably connected to the middle of the inclined support jack. The telescopic end of the fastening jack is connected to the clamp, and the other end is connected to the base.

7. The roadway triangular zone support frame with three-stage telescopic columns according to claim 1, characterized in that, The telescopic end of the inclined support jack is provided with a spherical support, and the end of the spherical support away from the inclined support jack is connected to the baffle.

8. The roadway triangular zone support frame with three-stage telescopic columns according to claim 1, characterized in that, The column is inclined in the vertical direction away from the three-stage telescopic assembly.

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