Tensile strength clamp for rock splitting method

Abstract

The utility model discloses a rock splitting method tensile strength clamp which comprises a fixing base, a lifting rod is installed on the top of the fixing base in a penetrating and sliding mode, a lifting plate is installed at the bottom end of the lifting rod, a clamping groove is formed in the bottom face of the lifting plate, and a movable splitting strip is installed on the inner side of the clamping groove in a sliding mode. Two limiting holes which are symmetrical in position are formed in the upper surface of the movable splitting strip, two adjusting blocks are arranged on the upper surface of the lifting plate, limiting rods are connected to the bottom ends of the two adjusting blocks in an inserted mode, and the bottom ends of the limiting rods penetrate through the lifting plate and are connected to the inner sides of the limiting holes in an inserted mode. Compared with the prior art, the movable splitting strip has the advantages that the movable splitting strip is in sliding connection with the lifting plate, the position of the movable splitting strip is limited by inserting the bottom end of the limiting rod into the limiting hole, the movable splitting strip can be conveniently replaced on the premise that the lifting rod is not detached, and meanwhile it is guaranteed that the movable splitting strip cannot be separated from the lifting plate in the using process.

Description

TECHNICAL FIELD

[0001] The utility model relates to rock cleaving method tensile strength fixture technical field, especially relates to a rock cleaving method tensile strength fixture. BACKGROUND

[0002] Rock cleaving method is a kind of method for determining the tensile strength of rock by applying linear load to make rock test piece occur compression-induced tensile fracture failure along the diameter direction, and it is widely used in rock mechanics test, and it is one of commonly used methods for determining the tensile strength of rock, which belongs to one kind of indirect tensile method, compared with direct tensile method, it has the advantages of simple operation and easy implementation etc.;

[0003] Rock cleaving method tensile strength fixture, referred to as tensile fixture, is specially designed for rock cleaving method test to determine the tensile strength of rock, and it applies linear load to rock sample through specific clamping and loading mode to make it occur compression-induced tensile fracture failure along the diameter direction, so as to evaluate the tensile performance of rock.

[0004] However, the component moving downward and splitting rock in rock cleaving method tensile strength fixture is connected with lifting plate through screw, when the component moving downward and splitting rock is replaced, lifting plate needs to be disassembled first, so that rock cleaving method tensile strength fixture is inconvenient to maintain or replace component. UTILITY MODEL CONTENT

[0005] The utility model solves the technical problem that the component moving downward and splitting rock in rock cleaving method tensile strength fixture is connected with lifting plate through screw, when the component moving downward and splitting rock is replaced, lifting plate needs to be disassembled first, so that rock cleaving method tensile strength fixture is inconvenient to maintain or replace component.

[0006] In order to solve the above technical problem, the technical scheme of the utility model is as follows:

[0007] A rock cleaving method tensile strength fixture, including fixed seat, the top of fixed seat is equipped with lifting rod through sliding installation, the bottom of lifting rod is equipped with lifting plate, the bottom surface of lifting plate is equipped with clamping groove, the inner side of clamping groove is equipped with moving cleat through sliding installation, the upper surface of moving cleat is equipped with two position symmetries limit hole, the upper surface of lifting plate is equipped with two adjusting block, the bottom of two adjusting block is inserted into limit rod, the bottom of limit rod is inserted into the inner side of limit hole through lifting plate.

[0008] Preferably, the top outer side of limit rod is equipped with insertion hole, the side of adjusting block is inserted into anti-drop insertion rod through sliding, and the end of anti-drop insertion rod in the inner side of adjusting block is inserted into the inner side of insertion hole.

[0009] Preferably, the bottom end of the limiting rod is fixed with a reset plate, a limiting spring is arranged above the reset plate, and the limiting spring is sleeved outside the limiting rod and located between the reset plate and the lifting plate.

[0010] Preferably, the upper surface of the lifting plate is further slidably provided with two moving blocks, the moving blocks are U-shaped and both ends of the moving blocks are provided with inclined slopes.

[0011] Preferably, the outer surface of the adjusting block is provided with two position-symmetric moving clamping grooves, the top surface of the moving clamping grooves is an inclined surface, and the inclined angle of the inclined surface is consistent with the inclined angle of the end slope of the moving block.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The moving split strip and the lifting plate are in sliding connection, the position of the moving split strip is limited by the bottom end of the limiting rod inserted into the limiting hole, the moving split strip can be replaced without disassembling the lifting rod, and the moving split strip cannot be separated from the lifting plate during use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model;

[0015] Figure 2 It is a connection schematic view of the moving split strip and the lifting plate of the utility model;

[0016] Figure 3 It is Figure 2 It is a structure enlarged view of A in the middle;

[0017] Figure 4 It is a structure sectional view of the limiting rod of the utility model.

[0018] In the drawing: 1, fixed seat; 2, lifting rod; 3, moving split strip; 4, lifting plate; 5, clamping groove; 6, limiting hole; 7, adjusting block; 8, moving block; 9, moving clamping groove; 10, anti-dropping plug; 11, limiting rod; 12, limiting spring; 13, reset plate. DETAILED DESCRIPTION

[0019] The specific embodiments of the utility model will be further described in combination with the drawings. It needs to be explained here that the description of these embodiments is used to help understanding the utility model, but does not constitute the limitation to the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] For example, Figure 1 , Figure 2 and Figure 4As shown in the figure, a kind of rock splitting method tensile strength fixture, the top of fixed seat 1 is slidably installed with lifting rod 2, the bottom end of lifting rod 2 is installed with lifting plate 4, the bottom surface of lifting plate 4 is equipped with clamping groove 5, the inner side of clamping groove 5 is slidably installed with moving wedge 3, the upper surface of moving wedge 3 is equipped with two position symmetrical limit holes 6, the upper surface of lifting plate 4 is equipped with two adjusting blocks 7, the bottom end of two adjusting blocks 7 is inserted with limit rod 11, the bottom end of limit rod 11 penetrates lifting plate 4 and the bottom end is inserted in the inner side of limit hole 6, moving wedge 3 is slidably inserted in clamping groove 5, and moving wedge 3 is positionally limited by being inserted in limit hole 6 through limit rod 11, after limit rod 11 is separated from limit hole 6, moving wedge 3 can be easily taken out, so that damaged moving wedge 3 can be conveniently replaced or repaired.

[0021] The top end of limit rod 11 is equipped with insertion hole, one side of adjusting block 7 is slidably inserted in anti-drop insertion rod 10, the end of anti-drop insertion rod 10 located in the inner side of adjusting block 7 is inserted in the inner side of insertion hole, limit rod 11 is connected with adjusting block 7 through anti-drop insertion rod 10, so that the bottom end of limit rod 11 can move with adjusting block 7 when adjusting block 7 moves upward, and the bottom end of limit rod 11 is separated from limit hole 6.

[0022] The bottom end of limit rod 11 is fixed with reset plate 13, limit spring 12 is arranged above reset plate 13, limit spring 12 is sleeved on the outer side of limit rod 11 and located between reset plate 13 and lifting plate 4, the position of limit rod 11 is limited by limit spring 12 and reset plate 13, so that the bottom end of limit rod 11 is always inserted in the inner side of limit hole 6 without external intervention, and moving wedge 3 cannot easily slide in the inner side of clamping groove 5.

[0023] As the preferred technical scheme of the embodiment, as shown in Figure 3 and Figure 4 As shown in the figure, the upper surface of lifting plate 4 is also slidably provided with two moving blocks 8, moving block 8 is U-shaped bending and the both ends are equipped with inclined slope surface, the outer surface of adjusting block 7 is equipped with two position symmetrical moving clamping grooves 9, the top surface of moving clamping groove 9 is inclined surface, the inclination angle of inclined surface and the end slope surface of moving block 8 is consistent, the both ends of moving block 8 are clamped in the inner side of two moving clamping grooves 9 and moving block 8 is pushed to adjusting block 7 direction, adjusting block 7 can be lifted up, so that adjusting block 7 drives limit rod 11 to move upward, and reset plate 13 compresses limit spring 12, and limit rod 11 cannot reset when moving block 8 is removed.

[0024] Working principle: when the rock is placed in the inside of the fixed seat 1, the rock is clamped from both sides by the auxiliary components of the tensile strength clamp, then the lifting rod 2 and the lifting plate 4 are moved downwards, the moving wedge 3 at the bottom of the lifting plate 4 contacts the rock and exerts force on the moving wedge 3 downwards, so that the rock is split, after the moving wedge 3 repeatedly splits the rock, when the moving wedge 3 needs to be maintained or replaced, the staff first clamps the two ends of the moving block 8 in the two moving clamping grooves 9 on the outer surface of the adjusting block 7, and pushes the moving block 8 towards the adjusting block 7, so that the moving block 8 lifts the adjusting block 7 upwards, at the same time, the adjusting block 7 drives the limiting rod 11 upwards through the anti-dropping inserting rod 10, so that the bottom end of the limiting rod 11 gradually separates from the limiting hole 6 on the upper surface of the moving wedge 3, in this process, the reset plate 13 moves upwards at the same time with the limiting rod 11 and compresses the limiting spring 12, until the upper surface of the moving block 8 is flush with the bottom surface of the adjusting block 7, the two adjusting blocks 7 are lifted by the two moving blocks 8 and separated from the lifting plate 4, at this time, the moving wedge 3 can be taken out from the clamping groove 5 by pushing the moving wedge 3, which simplifies the replacement operation of the moving wedge 3 and is convenient for maintaining or replacing the moving wedge 3.

[0025] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and still fall within the protection scope of the utility model.

Claims

1. A rock cleaving method tensile strength clamp comprising a fixing base (1), characterized in that: The top of the fixing base (1) is slidably installed through a lifting rod (2), the bottom end of the lifting rod (2) is installed with a lifting plate (4), the bottom surface of the lifting plate (4) is provided with a clamping groove (5), the inner side of the clamping groove (5) is slidably installed with a moving wedge (3), the upper surface of the moving wedge (3) is provided with two position-symmetric limiting holes (6), the upper surface of the lifting plate (4) is provided with two adjusting blocks (7), the bottom end of the two adjusting blocks (7) is inserted with a limiting rod (11), the bottom end of the limiting rod (11) penetrates through the lifting plate (4) and is inserted into the inner side of the limiting hole (6).

2. A tensile strength rock splitting method clamp according to claim 1, wherein: The top end of the limiting rod (11) is provided with an insertion hole on the outer side, one side of the adjusting block (7) is slidably inserted into an anti-dropping insertion rod (10), and the end of the anti-dropping insertion rod (10) located on the inner side of the adjusting block (7) is inserted into the insertion hole.

3. A tensile strength rock splitting method clamp according to claim 2, wherein: The bottom end of the limiting rod (11) is fixed with a reset plate (13) on the outer side, the upper side of the reset plate (13) is provided with a limiting spring (12), the limiting spring (12) is sleeved on the outer side of the limiting rod (11) and located between the reset plate (13) and the lifting plate (4).

4. A tensile strength rock splitting method clamp according to claim 1, wherein: The upper surface of the lifting plate (4) is also slidably provided with two moving blocks (8), the moving blocks (8) are U-shaped and provided with inclined slopes at both ends.

5. A tensile strength rock cleavage method clamp according to claim 4, wherein: The outer surface of the adjusting block (7) is provided with two position-symmetric moving clamping grooves (9), the top surface of the moving clamping groove (9) is an inclined surface, and the inclined angle of the inclined surface is consistent with that of the end slope of the moving block (8). The top end of the limiting rod (11) is provided with an insertion hole on the outer side, one side of the adjusting block (7) is slidably inserted into an anti-dropping insertion rod (10), and the end of the anti-dropping insertion rod (10) located on the inner side of the adjusting block (7) is inserted into the insertion hole.

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