Hydraulic support test platform

Abstract

The utility model relates to a hydraulic support test platform which comprises a fixed base and a lifting platform, and the fixed base is fixedly connected with the ground. The first end of the lifting platform is hinged to the fixed base, the second end of the lifting platform is supported by the supporting assembly and can rotate relative to the fixed base, a limiting assembly is arranged between the lifting platform and the fixed base, and the hydraulic support debugging test platform can solve the technical problem that in the prior art, a hydraulic support debugging test platform is insufficient in safety.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic support test equipment, in particular to a hydraulic support test platform. Background Art

[0002] With the improvement of the mechanization degree of coal mining, the large-angle coal seams and steep-angle coal seams have begun to test and gradually popularize comprehensive mechanized coal mining. The fully-mechanized hydraulic support is one of the key equipment of the fully-mechanized coal mining face in coal mines. It controls the roof rock layer of the working area of ​​the working face by interacting with the surrounding rock, and can reliably and effectively support and control the roof of the working face, isolate the goaf, prevent the gangue from entering the mining face, and provide a safe working space for the working face.

[0003] When the equipment is put into production and the hydraulic support is lowered into the mine, it is necessary to arrange the coal mining machine, scraper, and hydraulic support together on the ground to verify the conformity of the three-machine matching relationship in order to avoid bringing problems into the mine. This process not only requires a large investment of manpower, financial resources, and materials, but also the ground cannot simulate the actual operation of the hydraulic support underground. Problems such as the length of the support connection hose involved when the two hydraulic supports move against each other and the reliability of preventing gangue leakage between the supports are also involved.

[0004] Due to the particularity of the geological conditions of high-angle coal seams and steeply inclined coal seams, when conducting debugging tests on horizontal ground, it is impossible to fully simulate the various parameters and performance of underground equipment in an inclined state. The hydraulic support debugging test platforms in the existing technology are not equipped with insurance measures, and their safety and reliability need to be improved. Utility Model Content

[0005] In view of various deficiencies in the prior art, a hydraulic support test platform is proposed to solve the technical problem of insufficient safety of the hydraulic support debugging test platform in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A hydraulic support test platform comprises a fixed base and a lifting platform, wherein the fixed base is fixedly connected to the ground; a first end of the lifting platform is hinged to the fixed base, a second end of the lifting platform is supported by a supporting assembly and can rotate relative to the fixed base, and a limiting assembly is provided between the lifting platform and the fixed base.

[0008] The technical solution is further configured as follows: the limit assembly includes a limit plate and a pin shaft, the limit plate is located on the lifting platform, a plurality of first limit holes are opened on the limit plate, a second limit hole is opened on the fixed base, and the pin shaft passes through the second limit hole and the first limit hole in sequence for limitation.

[0009] The technical solution is further configured such that the limit plate is an arc-shaped plate, and the limit plate is arranged close to the first end of the lifting platform and the hinge axis of the fixed base.

[0010] The technical solution is further configured such that the support assembly includes a first connecting rod and a second connecting rod which are hinged to each other, one end of the first connecting rod is hinged to the bottom of the lifting platform, one end of the second connecting rod is hinged to the fixed base, the hinge between the first connecting rod and the second connecting rod is connected to the telescopic end of the first telescopic mechanism, and the fixed end of the first telescopic mechanism is connected to the fixed base.

[0011] The technical solution is further configured to include a support beam, a first end of the support beam is hinged to the fixed base, and a second end of the support beam can rotate relative to the fixed base, and the lifting platform and the support beam respectively support two adjacent side surfaces of the hydraulic support.

[0012] The technical solution is further configured as follows: a second telescopic mechanism is provided between the second end of the support beam and the fixed base, the telescopic end of the second telescopic mechanism is hinged to the support beam, and the fixed end of the second telescopic mechanism is fixedly connected to the fixed base.

[0013] The technical solution is further configured as follows: the support beam includes a plurality of longitudinal beams and a plurality of transverse beams connecting two adjacent longitudinal beams, and one end of the longitudinal beam is hinged to the fixed base.

[0014] The technical solution is further configured such that the lifting platform and the support beam are respectively hinged to the fixed base via different hinge axes, and the beam height of the cross beam is greater than the beam height of the longitudinal beam.

[0015] The technical solution is further configured such that the lifting platform is a hollow box structure, and a plurality of reinforcing ribs are provided inside the box structure.

[0016] The technical solution is further configured to further include a staircase, wherein the staircase is connected to the fixed base via a fastener.

[0017] The beneficial effects of the utility model are:

[0018] When the lifting platform rotates to a predetermined inclination angle, the inclination angle of the lifting platform is mechanically limited by the limit assembly to ensure the accuracy of the rotation angle of the lifting platform. At the same time, since the limit assembly can provide a certain supporting force for the lifting platform, it can also play a role of auxiliary support, effectively preventing the occurrence of safety accidents and improving the safety and reliability of the hydraulic support test platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a hydraulic support test platform according to an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of another viewing angle of the hydraulic support test platform of the utility model embodiment;

[0021] Figure 3 It is a top view of the hydraulic support test platform of the utility model embodiment.

[0022] In the accompanying drawings: 1. fixed base; 2. lifting platform; 3. support assembly; 4. limit plate; 5. first limit hole; 6. second limit hole; 7. first telescopic mechanism; 8. second telescopic mechanism; 9. first connecting rod; 10. second connecting rod; 11. support beam; 12. longitudinal beam; 13. cross beam; 14. stairs; 15. first hinge axis; 16. second hinge axis. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.

[0024] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0025] According to the embodiment of the utility model, a hydraulic support test platform is provided. Figures 1 to 3 , including a fixed base 1 and a lifting platform 2, the fixed base 1 is fixedly connected to the ground; the first end of the lifting platform 2 is hinged to the fixed base 1, the second end of the lifting platform 2 is supported by a supporting assembly 3 and can rotate relative to the fixed base 1, and a limiting assembly is provided between the lifting platform 2 and the fixed base 1.

[0026] It should be noted that when the lifting platform 2 rotates to a predetermined inclination angle, the inclination angle of the lifting platform 2 is mechanically limited by a limiting component, so as to ensure the accuracy of the rotation angle of the lifting platform 2. At the same time, since the limiting component can provide a certain supporting force for the lifting platform 2, it can also play a role of auxiliary support, effectively preventing the occurrence of safety accidents and improving the safety and reliability of the hydraulic support test platform.

[0027] Specifically, the fixed base 1 adopts a semi-enclosed box structure with an open top, and is fixed to the ground by anchor bolts.

[0028] In the hydraulic support test platform of the utility model, the limit assembly includes a limit plate 4 and a pin shaft, the limit plate 4 is located on the lifting platform 2, a plurality of first limit holes 5 are formed on the limit plate 4, a second limit hole 6 is formed on the fixed base 1, and the pin shaft sequentially passes through the second limit hole 6 and the first limit hole 5 for limit. Preferably, there are two groups of limit assemblies, and the two groups of limit assemblies are symmetrically arranged on both sides of the lifting platform 2 to ensure that the force exerted on the lifting platform 2 is evenly transmitted to the fixed base 1.

[0029] In the hydraulic support test platform of the present invention, the limit plate 4 is an arc-shaped plate, and the limit plate 4 is arranged close to the first end of the lifting platform 2 and the hinge axis of the fixed base 1. Specifically, the distances between the two ends of the arc-shaped plate and the first end of the lifting platform 2 and the hinge axis of the fixed base 1 are equal.

[0030] It should be noted that the closer the limit plate 4 is to the hinge axis between the lifting platform 2 and the fixed base 1, the smaller the overall height of the limit plate 4 is, thereby making it easier for the staff to place the pin for limiting.

[0031] In the hydraulic support test platform of the utility model, the support assembly 3 includes a first connecting rod 9 and a second connecting rod 10 which are hinged to each other, one end of the first connecting rod 9 is hinged to the bottom of the lifting platform 2, one end of the second connecting rod 10 is hinged to the fixed base 1, the hinge between the first connecting rod 9 and the second connecting rod 10 is connected to the telescopic end of the first telescopic mechanism 7, and the fixed end of the first telescopic mechanism 7 is connected to the fixed base 1. Specifically, four first telescopic mechanisms 7 are provided to provide sufficient support for the lifting platform 2.

[0032] It should be noted that the first telescopic mechanism 7 is extended and retracted, driving the first connecting rod 9 and the second connecting rod 10 to rotate relative to each other, thereby adjusting the inclination angle of the lifting platform 2 and providing support for the lifting platform 2 at the same time.

[0033] The hydraulic support test platform of the utility model also includes a support beam 11, a first end of the support beam 11 is hinged to the fixed base 1, and a second end of the support beam 11 can rotate relative to the fixed base 1. The lifting platform 2 and the support beam 11 respectively support two adjacent sides of the hydraulic support.

[0034] It should be noted that when simulating the working state of the hydraulic support in a coal seam with a relatively small inclination angle, only the lifting platform 2 is required to provide support for the hydraulic support; when simulating the working state of the hydraulic support in a coal seam with a relatively large inclination angle, the support beam 11 assists the lifting platform 2 in supporting the hydraulic support to ensure the stability of the hydraulic support. Specifically, when simulating the working state of the hydraulic support in a coal seam with an inclination angle of ≥15 degrees, the support beam 11 is activated for auxiliary support.

[0035] In the hydraulic support test platform of the utility model, a second telescopic mechanism 8 is provided between the second end of the support beam 11 and the fixed base 1. The telescopic end of the second telescopic mechanism 8 is hinged to the support beam 11, and the fixed end of the second telescopic mechanism 8 is fixedly connected to the fixed base 1. The second telescopic mechanism 8 is extended and retracted to drive the support beam 11 to rotate, and at the same time, provide support for the support beam 11.

[0036] Specifically, the first adjusting mechanism and the second adjusting mechanism are oil cylinders and / or servo motor electric cylinders, and the first adjusting mechanism and the second adjusting mechanism provide power for the lifting platform 2 and the support beam 11 respectively.

[0037] In the hydraulic support test platform of the utility model, the support beam 11 includes a plurality of longitudinal beams 12 and a plurality of transverse beams 13 connecting two adjacent longitudinal beams 12. On the one hand, the dead weight of the support beam 11 is reduced as much as possible, and the loss of the second telescopic mechanism 8 is reduced, thereby reducing the maintenance cost; on the other hand, the contact area between the support beam 11 and the hydraulic support is increased to provide sufficient supporting force for the hydraulic support. Specifically, one end of the longitudinal beam 12 is hinged to the fixed base 1.

[0038] In the hydraulic support test platform of the present invention, the lifting platform 2 and the support beam 11 are respectively hinged to the fixed base 1 through different hinge axes. Specifically, the lifting platform 2 is hinged to the fixed base 1 through a first hinge axis 15, and the support beam 11 is hinged to the fixed base 1 through a second hinge axis 16. The second hinge axis 16 is arranged near the first end of the lifting platform 2.

[0039] In the hydraulic support test platform of the present invention, the beam height of the cross beam 13 is greater than the beam height of the longitudinal beam 12 to prevent the hydraulic support from interfering with the second hinge shaft 16 .

[0040] In the hydraulic support test platform of the utility model, the lifting platform 2 is a hollow box structure, and a plurality of reinforcing rib plates are arranged inside the box structure.

[0041] It should be noted that, on the one hand, the lifting platform 2 is set as a hollow box structure to reduce the dead weight of the lifting platform 2 as much as possible, reduce the loss of the first telescopic mechanism 7, and thus reduce the maintenance cost; on the other hand, the supporting strength of the lifting platform 2 is improved by setting a reinforcing rib plate.

[0042] The hydraulic support test platform of the present invention further includes a staircase 14, which is connected to the fixed base 1 through fasteners. The staircase 14 is provided to facilitate the staff to observe and adjust the state of the hydraulic support test platform.

[0043] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A hydraulic support test platform, characterized in that: It includes a fixed base and a lifting platform, the fixed base is fixedly connected to the ground; the first end of the lifting platform is hinged to the fixed base, the second end of the lifting platform is supported by a supporting assembly and can rotate relative to the fixed base, and a limiting assembly is provided between the lifting platform and the fixed base.

2. The hydraulic support test platform according to claim 1, characterized in that: The limiting assembly includes a limiting plate and a pin shaft. The limiting plate is located on the lifting platform. A plurality of first limiting holes are formed on the limiting plate. A second limiting hole is formed on the fixed base. The pin shaft passes through the second limiting hole and the first limiting hole in sequence for limiting.

3. The hydraulic support test platform according to claim 2, characterized in that: The limiting plate is an arc-shaped plate, and the limiting plate is arranged close to the first end of the lifting platform and the hinge axis of the fixed base.

4. The hydraulic support test platform according to claim 1, characterized in that: The support assembly includes a first connecting rod and a second connecting rod that are hinged to each other, one end of the first connecting rod is hinged to the bottom of the lifting platform, one end of the second connecting rod is hinged to the fixed base, the hinge between the first connecting rod and the second connecting rod is connected to the telescopic end of the first telescopic mechanism, and the fixed end of the first telescopic mechanism is connected to the fixed base.

5. The hydraulic support test platform according to claim 1, characterized in that: It also includes a support beam, a first end of the support beam is hinged to the fixed base, and a second end of the support beam can rotate relative to the fixed base. The lifting platform and the support beam respectively support two adjacent side surfaces of the hydraulic support.

6. The hydraulic support test platform according to claim 5, characterized in that: A second telescopic mechanism is provided between the second end of the support beam and the fixed base, the telescopic end of the second telescopic mechanism is hinged to the support beam, and the fixed end of the second telescopic mechanism is fixedly connected to the fixed base.

7. The hydraulic support test platform according to claim 6, characterized in that: The support beam comprises a plurality of longitudinal beams and a plurality of transverse beams connecting two adjacent longitudinal beams, and one end of the longitudinal beam is hinged to the fixed base.

8. The hydraulic support test platform according to claim 7, characterized in that: The lifting platform and the support beam are respectively hinged to the fixed base via different hinge shafts, and the beam height of the cross beam is greater than the beam height of the longitudinal beam.

9. The hydraulic support test platform according to claim 1, characterized in that: The lifting platform is a hollow box structure, and a plurality of reinforcing rib plates are arranged inside the box structure.

10. The hydraulic support test platform according to any one of claims 1 to 9, characterized in that: Also included is a staircase connected to the fixed base via fasteners.

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