Horizontal loading test tool for hydraulic support

Abstract

The utility model relates to a hydraulic support horizontal loading test tool which comprises a plurality of limiting devices, the weight and the size of a single limiting device are reduced, transportation, installation and debugging are facilitated, and the manpower and material resource cost in the test process is reduced. The limiting device comprises a mounting block and a limiting block protruding out of the upper surface of the mounting block, the mounting block is detachably connected with the test bed, and dismounting and mounting are convenient. The limiting blocks are located above the mounting block, and the limiting blocks of the multiple limiting devices abut against the end face of a base of the hydraulic support. The multiple limiting devices are reasonably arranged according to the shape of the base of the hydraulic support, and it is effectively guaranteed that each limiting device abuts against the base of the hydraulic support. Moreover, when hydraulic supports of different models need to be tested, the tool does not need to be replaced, and only the transverse position of each limiting device needs to be moved to ensure that each limiting device effectively abuts against the base of the support. The test tool has the advantage of wide application range, and can quickly adapt to various hydraulic supports.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic support test tool technical field especially relates to a kind of hydraulic support horizontal loading test tool. BACKGROUND

[0002] In coal mining operation, hydraulic support as key equipment, plays a pivotal role to maintain the safety of underground operation space. It can effectively support roof, prevent roof collapse, provide safe working environment for coal mining personnel and equipment. With the continuous progress of coal mining technology, the performance and reliability requirements of hydraulic support are increasingly improved. To ensure that hydraulic support can stably and reliably run in actual work, its various performance indicators must be strictly detected, and horizontal loading test is an important link to evaluate the performance of hydraulic support. For the horizontal loading test of hydraulic support, hydraulic support needs to be placed on test bench, and special test tool is installed on test bench to fix the base of hydraulic support to complete test process.

[0003] However, the existing hydraulic support horizontal test tool is of integral structure, and the structures of hydraulic support produced by different manufacturers and designed by the same manufacturer to meet different coal mining conditions are quite different, which leads to the need of customizing test tools of different sizes and structures according to different support design structures. This one-to-one correspondence results in a large number of test tools, which is difficult to manage. In addition, the existing hydraulic support horizontal test tool is large in size and heavy in weight in design. This not only increases the manufacturing material cost of tool, but also requires a large amount of manpower, material resources and time in transportation, installation and debugging process. Since different hydraulic supports require different tools, when different models of hydraulic support need to be tested in actual test process, the tool needs to be frequently replaced, and the installation and disassembly process is often complex, which requires professional technicians and large lifting equipment to complete. This process is not only cumbersome, but also prone to safety accidents, which increases test cost and risk. UTILITY MODEL CONTENTS

[0004] (I) Technical problem to be solved

[0005] In view of the above shortcomings and deficiencies of the prior art, the utility model provides a kind of hydraulic support horizontal loading test tool.

[0006] (II) Technical scheme

[0007] In order to achieve the above purpose, the utility model discloses a kind of hydraulic support horizontal loading test tool, including multiple limit devices set on test bench;

[0008] The limiting device comprises a mounting block and a limiting block protruding from the upper surface of the mounting block, the mounting block is detachably connected with the test bench, the limiting block is located above the mounting block, and the limiting blocks of multiple limiting devices are in abutment with the end surface of the base of the hydraulic support.

[0009] Optionally, the bottom surface of the mounting block is provided with a limiting mechanism, and the limiting mechanism is detachably connected with the test bench.

[0010] Optionally, the limiting mechanism comprises a first limiting column and a second limiting column, and the limiting block is located between the first limiting column and the second limiting column.

[0011] The first limiting column is sleeved in one strip-shaped groove on the test bench, and the second limiting column is sleeved in another strip-shaped groove on the test bench.

[0012] Optionally, the first limiting column and the second limiting column each comprise at least two.

[0013] Multiple first limiting columns are sleeved in the same strip-shaped groove, and multiple second limiting columns are sleeved in another strip-shaped groove.

[0014] Optionally, a first through hole and a second through hole are formed in the mounting block.

[0015] The central axes of the first through hole and the second through hole are perpendicular to the central axis of the mounting block, and the limiting block is located between the first through hole and the second through hole.

[0016] A bolt is sleeved in the first through hole and the second through hole, and the bolt is detachably connected with the strip-shaped groove on the test bench.

[0017] Optionally, the second through hole is a waist-shaped hole.

[0018] Optionally, the surface of the limiting block in abutment with the end surface of the base of the hydraulic support is a stress surface, and the stress surface is vertically arranged.

[0019] The surface of the limiting block opposite to the stress surface is a stress buffer surface, and the stress buffer surface is an inclined surface.

[0020] Optionally, the thickness of the mounting block and the limiting block in the direction of the strip-shaped groove is 50mm to 200mm.

[0021] Optionally, the thickness of the limiting block in the direction of the strip-shaped groove is 50mm to 200mm, and the thickness of the mounting block in the direction of the strip-shaped groove is not less than the thickness of the limiting block in the direction of the strip-shaped groove.

[0022] (Three) beneficial effects

[0023] The hydraulic support horizontal loading test tooling comprises multiple limiting devices arranged on a test table, the weight and volume of a single limiting device are reduced, so that transportation, installation and debugging are facilitated, and human and material costs in the test process are reduced.

[0024] The limiting device comprises a mounting block and a limiting block protruding from the upper surface of the mounting block, the mounting block and the limiting block adopt an integrated structure and have sufficient strength, so that the loading requirements of different hydraulic supports under various test conditions can be met, and the accuracy and reliability of test results are ensured.

[0025] The mounting block and the test table are detachably connected, and are installed and fixed by using the self-provided strip-shaped groove on the test table, so that the mounting and dismounting are convenient.

[0026] The multiple limiting devices are arranged according to the shape of the base of the hydraulic support, so that the abutment of each limiting device with the base of the hydraulic support is effectively ensured; and when different models of hydraulic supports need to be tested, the tooling does not need to be replaced, and only the horizontal positions of the limiting devices need to be moved, so that the abutment of each limiting device with the base of the hydraulic support is ensured. The test tooling has the advantage of wide application range, can quickly adapt to the test requirements of hydraulic supports of different models and structures, improves the efficiency and flexibility of test work, and effectively promotes the development of hydraulic support detection technology, thereby providing stronger guarantee for coal mine safety production. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is an installation schematic view of the hydraulic support horizontal loading test tooling of the utility model

[0028] Figure 2 It is a sectional view of the limiting device of the hydraulic support horizontal loading test tooling of the utility model

[0029] Figure 3 It is a side view of the limiting device of the hydraulic support horizontal loading test tooling of the utility model

[0030] Figure 4 It is a top view of the limiting device of the hydraulic support horizontal loading test tooling of the utility model.

[0031]

BRIEF DESCRIPTION OF REFERENCE NUMERALS

[0032] 1: mounting block; 11: first through hole; 12: second through hole;

[0033] 2: limiting block; 21: stress surface; 22: stress buffer surface;

[0034] 3: base;

[0035] 4: test table;

[0036] 5: first limiting column; 6: second limiting column. Detailed Implementation

[0037] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, directional terms such as "upper," "lower," etc., are used interchangeably with other directional terms. Figure 1 The orientation is used as a reference.

[0038] While exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0039] like Figures 1 to 4 As shown, this utility model provides a horizontal loading test fixture for hydraulic supports, used to apply a force to the base 3 of the hydraulic support in the horizontal direction to prevent displacement of the base 3 in the horizontal direction. The hydraulic support horizontal loading test fixture includes multiple limiting devices mounted on a test bench 4, reducing the weight and volume of each limiting device to facilitate transportation, installation, and debugging, thereby reducing manpower and material costs during the test. Further, the limiting device includes a mounting block 1 and a limiting block 2 protruding from the upper surface of the mounting block 1. The mounting block 1 and the limiting block 2 are of an integral structure, possessing sufficient strength to meet the loading requirements of different hydraulic supports under various test conditions, ensuring the accuracy and reliability of the test results. The mounting block 1 is detachably connected to the test bench 4, using the built-in slot on the test bench 4 for installation and fixation, making assembly and disassembly convenient. The limiting block 2 is located above the mounting block 1, and the limiting blocks 2 of the multiple limiting devices abut against the end face of the base 3 of the hydraulic support. Multiple limiting devices are rationally arranged according to the shape of the hydraulic support base 3, effectively ensuring that each limiting device abuts against the support base 3. Furthermore, when testing different models of hydraulic supports, there is no need to change the fixture; only the lateral position of each limiting device needs to be moved to ensure effective abutment between each device and the support base 3. This testing fixture has the advantage of wide applicability, quickly adapting to the testing needs of hydraulic supports of different models and structures, improving the efficiency and flexibility of testing work, thereby effectively promoting the development of hydraulic support testing technology and providing stronger guarantees for safe coal mine production.

[0040] Furthermore, a limiting mechanism is provided on the bottom surface of the mounting block 1. The limiting mechanism is used to detachably connect with the test bench 4 to provide a horizontal force to the mounting block 1, thereby realizing the horizontal force on the limiting block 2.

[0041] See Figure 2 and Figure 3Further, the limiting mechanism comprises a first limiting column 5 and a second limiting column 6, and the limiting block 2 is located between the first limiting column 5 and the second limiting column 6, preferably in the middle of the first limiting column 5 and the second limiting column 6, so that the first limiting column 5 and the second limiting column 6 are balanced in force, avoiding damage of one of the limiting columns due to excessive force. The first limiting column 5 is inserted into and sleeved on one strip-shaped slot on the test bench 4, and the second limiting column 6 is inserted into and sleeved on another strip-shaped slot on the test bench 4. The two strip-shaped slots are preferably two adjacent strip-shaped slots, which are inserted and fixed by using the strip-shaped slots on the test bench 4. In addition, the weight of the limiting device is reduced, so that the disassembly and movement can be completed by manpower, simplifying the operation and improving the efficiency. The first limiting column 5 and the second limiting column 6 each comprise at least two, preferably two. The plurality of first limiting columns 5 are sleeved on the same strip-shaped slot, and the plurality of second limiting columns 6 are sleeved on another strip-shaped slot, so as to improve the stability of the installation block 1 and avoid the installation block 1 from being deflected in the horizontal direction; and the installation block 1 has good mechanical properties and can effectively transmit and disperse the loading force.

[0042] Referring to Figure 1 and Figure 4 , the installation block 1 is provided with a first through hole 11 and a second through hole 12, and the central axes of the first through hole 11 and the second through hole 12 are perpendicular to the central axis of the installation block 1, and the limiting block 2 is located between the first through hole 11 and the second through hole 12. A bolt is sleeved in the first through hole 11 and the second through hole 12, and the bolt is detachably connected with the strip-shaped slot on the test bench 4. In one embodiment, the first through hole 11 is located between a pair of first limiting columns 5, and the second through hole 12 is located between a pair of second limiting columns 6, so that the bolt sleeved in the first through hole 11 is sleeved in the same strip-shaped slot as the first limiting column 5, and the bolt sleeved in the second through hole 12 is sleeved in the same strip-shaped slot as the second limiting column 6. The two bolts fix the installation block 1 on the test bench 4, avoiding the installation block 1 from swinging away from the vertical direction and from moving in the vertical direction, thereby avoiding the limiting block 2 from swinging left and right and moving up and down, ensuring the accuracy and reliability of the test results. The second through hole 12 is preferably a waist-shaped hole, which can fine-tune the position of the bolt to ensure that the bolt can be accurately inserted into the strip-shaped slot.

[0043] Before the horizontal loading test of the hydraulic support, the limiting device is installed first, the bolt is installed on the installation block 1, the lower end with the nut is put into the strip-shaped groove from the position with larger slot width at the end of the strip-shaped groove, the installation block 1 is moved to the first set position along the length direction of the strip-shaped groove, then the first limiting column 5 and the second limiting column 6 are inserted into the strip-shaped groove, and the number of the limiting device used can be determined according to the structure of the hydraulic support. The test table 4 is a T-shaped groove platform, the strip-shaped groove is a T-shaped groove, the nut is located at the groove bottom of the strip-shaped groove and cannot rotate due to the limitation of the width of the groove bottom, and the two limiting columns are inserted into the straight groove of the strip-shaped groove. According to the structural characteristics of the base 3 of the hydraulic support, the installation block 1 is moved to the second set position along the length direction of the strip-shaped groove, and the bolt is tightened. The hydraulic support is started, moves in the direction perpendicular to the strip-shaped groove to abut against the plurality of limiting blocks 2, and the loading test is started.

[0044] Referring to Figure 2 The face of the limiting block 2 abutting against the end face of the base 3 of the hydraulic support is a stress surface 21, and the stress surface 21 is vertically arranged. The face of the limiting block 2 opposite to the stress surface 21 is a stress buffer surface 22, and the stress buffer surface 22 is an inclined surface, thereby improving the strength of the limiting block 2.

[0045] In one embodiment, the thickness of the installation block 1 and the limiting block 2 along the direction of the strip-shaped groove is 50mm to 200mm, preferably 100mm. In another embodiment, the thickness of the limiting block 2 along the direction of the strip-shaped groove is 50mm to 200mm, preferably 100mm, and the thickness of the installation block 1 along the direction of the strip-shaped groove is not less than the thickness of the limiting block 2 along the direction of the strip-shaped groove.

[0046] The utility model discloses have extensive applicability, reduce equipment redundancy and quick replacement effect. Extensive applicability: break through traditional frock adaptation limitation, rely on adjustable mounting block 1, multidimensional adjustment mechanism and intelligent adaptation system, this frock can be quickly matched with various different design structure's hydraulic support. Whether it is common four -column support formula, two -column shelter formula or special customization's hydraulic support, can be accurate butt joint, greatly widen frock's application scene, cover from coal mining equipment manufacturing enterprise's product research and development test to various coal production mine's field support performance detection etc. Multiple fields, provide strong support for the quality control and technical development of entire hydraulic support industry. Reduce equipment redundancy: coal mine enterprise or detection mechanism need not again for each type's hydraulic support single specific frock, only need a set of limiting device, just can satisfy diversified test demand. This significantly reduces the capital investment of enterprise in frock purchase, reduces the inventory backlog, optimizes the equipment management process, avoids the resource waste and the management confusion problem caused by the frock variety. Quick replacement: the quick connection structure and self -adaptation fixed assembly (waist -type hole and bolt cooperation fixed mounting block 1) of innovative design, make frock and hydraulic support's connection and disassembly process become simple and fast. The operator need not rely on large -scale hoisting equipment and complex tool, can complete frock replacement in short time, greatly shorten test preparation time. Compared with traditional frock replacement, this frock can shorten the replacement time to within dozens of minutes, greatly improve test efficiency, ensure that detection work can efficiently, continuously carry out.

[0047] In the description of the utility model, it is understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0048] In the utility model, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood broadly, for example, can be fixed connection, can be detachable connection, or integral; can be mechanical connection, can be electrical connection; can be directly connected, or indirectly connected through intermediate medium; can be the communication or interaction relationship of two elements inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0049] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature, which can be directly above or obliquely above the first feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "under" and "under" the second feature, which can be directly below or obliquely below the first feature, or only indicates that the horizontal height of the first feature is lower than that of the second feature.

[0050] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0051] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can modify, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A hydraulic support horizontal loading test tool, characterized in that, The hydraulic support horizontal loading test tool comprises a plurality of limiting devices arranged on the test table (4); The limiting device comprises a mounting block (1) and a limiting block (2) protruding from the upper surface of the mounting block (1), the mounting block (1) is detachably connected with the test table (4), and the limiting block (2) is located above the mounting block (1), and the limiting blocks (2) of the plurality of limiting devices are in abutment with the end surface of the base (3) of the hydraulic support.

2. The hydraulic support horizontal load test tooling of claim 1, wherein, The bottom surface of the mounting block (1) is provided with a limiting mechanism, and the limiting mechanism is detachably connected with the test table (4).

3. The hydraulic support horizontal load test tooling of claim 2, wherein, The limiting mechanism comprises a first limiting column (5) and a second limiting column (6), and the limiting block (2) is located between the first limiting column (5) and the second limiting column (6). The first limiting column (5) is sleeved in one strip-shaped groove on the test table (4), and the second limiting column (6) is sleeved in another strip-shaped groove on the test table (4).

4. The hydraulic support horizontal load test tooling of claim 3, wherein, The first limiting column (5) and the second limiting column (6) each comprise at least two. The plurality of first limiting columns (5) are sleeved in the same strip-shaped groove, and the plurality of second limiting columns (6) are sleeved in another strip-shaped groove.

5. The hydraulic support horizontal load test tooling of claim 1, wherein, The mounting block (1) is provided with a first through hole (11) and a second through hole (12); The central axes of the first through hole (11) and the second through hole (12) are perpendicular to the central axis of the mounting block (1), and the limiting block (2) is located between the first through hole (11) and the second through hole (12); The first through hole (11) and the second through hole (12) are sleeved with bolts, and the bolts are detachably connected with the strip-shaped grooves on the test table (4).

6. The hydraulic support horizontal load test tooling of claim 5, wherein, The second through hole (12) is a waist-shaped hole.

7. The hydraulic support horizontal load test tooling of claim 1, wherein, The face of the limiting block (2) in abutment with the end surface of the base (3) of the hydraulic support is a stress receiving face (21), and the stress receiving face (21) is vertically arranged; The face of the limiting block (2) opposite to the stress receiving face (21) is a stress receiving and buffering face (22), and the stress receiving and buffering face (22) is an inclined face.

8. The hydraulic support horizontal load test tooling of claim 1, wherein, The thickness of the mounting block (1) and the limiting block (2) in the direction of the strip-shaped groove is 50mm to 200mm.

9. The hydraulic support horizontal load test tooling of claim 1, wherein, The thickness of the limiting block (2) in the direction of the strip-shaped groove is 50mm to 200mm, and the thickness of the mounting block (1) in the direction of the strip-shaped groove is not less than the thickness of the limiting block (2) in the direction of the strip-shaped groove.

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