Sensor fixing tool for fractured rock mechanics servo testing machine

Abstract

The utility model discloses a sensor fixing tool for a fractured rock mechanics servo testing machine, which comprises a base, a positioning groove is arranged on the base, two vertical rods are arranged on the outer side of the positioning groove on the base, the upper ends of the two vertical rods are fixedly connected with a horizontally arranged limiting rod, and the upper ends of the two vertical rods are fixedly connected with a fixing rod. The lower end of the base penetrates through the base and is rotationally connected with horizontally-arranged driving rods, two springs are connected between the two driving rods, a cam is arranged between the two springs and rotationally installed in the center of the bottom of the base through a shaft, the bottom end of the shaft is connected with a manual rod, and a first limiting mechanism is arranged between the manual rod and the base. And second limiting mechanisms are arranged at the end parts of the two limiting rods. The novel sensor fixing tool is suitable for machining and fixing sensors of different sizes, meets the machining requirements of various sensors on a fractured rock mechanics servo testing machine, and is wide in application range, controllable in clamping force, capable of improving the product percent of pass, easy to operate and high in working efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to fixed frock technical field, concretely relates to a kind of sensor fixed frock for fissured rock mechanics servo testing machine. BACKGROUND

[0002] The mechanical analysis of fissured rock helps to solve the rock engineering problems in water conservancy, civil engineering and other constructions. The existing mechanical servo testing machine for fissured rock analysis is mainly a basic scientific testing instrument for studying the stress-strain relationship of fissured rock-soil. It is mostly an electro-hydraulic servo universal testing machine. It adopts a double-space structure with the oil cylinder placed below. The space between the upper crossbeam and the middle crossbeam is the tensile space, mainly for tensile testing of the sample. The space between the workbench and the middle crossbeam is the compression space, which can realize compression, bending, shear and other tests of the sample. The tensile space and the compression space can be automatically adjusted by rotating the lead screw to drive the middle crossbeam to move up and down. The electro-hydraulic servo universal testing machine consists of a closed-loop servo control system composed of a controller, a servo valve, a load sensor, a displacement sensor, an extensometer and a computer. It can automatically and accurately control the test process and automatically measure test parameters such as test force, displacement and deformation. Therefore, the position of the sensor is very important.

[0003] The detection results of fissured rock mechanics servo testing machine depend on the multiple sensors installed on it. Therefore, the precision and stability of the sensor are strictly required. The manufacturing process of the sensor includes preparation of raw materials, preparation of components, module assembly and testing, and packaging box inspection. When performing module assembly and testing, the sensor shell needs to be fixed by a tool. However, the existing fixed tool has the problems of complicated operation and inaccurate control of the fixing force during fixing. It may cause low fixing efficiency, inaccurate assembly, damage to the sensor shell and other problems, which affect the precision and stability of the sensor. Therefore, we provide a sensor fixed tool for fissured rock mechanics servo testing machine to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the problems existing in the prior art, the utility model provides a sensor fixed tool for fissured rock mechanics servo testing machine, which can quickly fix the sensor shell, is simple to operate, and the clamping force is controllable. It avoids the possibility of damage to the sensor shell and effectively improves the production efficiency and product qualification rate of the sensor.

[0005] In order to achieve the above object, the utility model discloses a kind of sensor fixing tool for fissured rock mechanics servo testing machine, including base, the base is equipped with positioning slot, base is equipped with two vertical rods outside positioning slot, and two vertical rods are located on the diagonal line extension line of positioning slot, the upper end of above-mentioned two vertical rods is fixedly connected with the limiting rod of horizontal arrangement, lower end passes through base and is rotatably connected with the drive rod of horizontal arrangement, two described drive rods are connected with two groups of springs, cam is arranged in two groups of springs, the cam is rotatably installed at the bottom center of base, and the bottom end of the shaft is connected with manual lever, first limiting mechanism is arranged between the manual lever and base, the end of the two limiting rods away from vertical rod is equipped with second limiting mechanism, two described second limiting mechanisms include right angle plate, antiskid strip, upper pressing plate and limiting band, the back of above-mentioned right angle plate is fixedly installed in the end of limiting rod, upper pressing plate is horizontally fixed in the upper end of right angle plate, the lower surface of upper pressing plate and the side end surface of right angle plate are attached with antiskid strip, the two sides of two right angle plates are connected by limiting band.

[0006] As further optimization of the above scheme, the two ends of the base are provided with mounting ears, and a plurality of mounting holes are formed on the mounting ears at equal intervals.

[0007] As further optimization of the above scheme, the side surface of the cam is provided with two center-symmetric track grooves, and the drive rod is provided with a connecting ball matched with the track grooves.

[0008] As further optimization of the above scheme, the first limiting mechanism includes a limiting member, a limiting knob, a sliding ring and a limiting slot, the limiting slot is a rectangular slot formed on the base, the limiting member is slidingly fitted in the limiting slot, the bottom end of the limiting member is fixedly connected with the sliding ring, and the upper part of the limiting member is screw-connected with the limiting knob.

[0009] As further optimization of the above scheme, the limiting member is an I-shaped member, and a protruding column matched with the limiting knob is arranged at the upper end of the limiting member.

[0010] As further optimization of the above scheme, the limiting band is an elastic rubber band, and a plurality of anti-slip protrusions are arranged on the inner side of the limiting band.

[0011] As further optimization of the above scheme, the manual lever extends to the outside of the base, and an anti-slip sleeve is arranged at the handle of the manual lever, the anti-slip sleeve is a rubber anti-slip sleeve.

[0012] As further optimization of the above scheme, a connecting member is arranged at the connection between the right angle plate and the limiting rod, and the right angle plate and the limiting rod are rotatably connected through the connecting member, the upper end of the connecting member passes through the limiting rod and is fixedly connected with a disc, the limiting rod and the disc are provided with the same circular and equidistantly distributed pin holes, a limiting pin is matched in one group of pin holes, and the limiting pin is a column with thick upper part and thin lower part.

[0013] As a further optimization of the above scheme, the base is provided with a length scale on one side of the limiting groove, facilitating the worker to control the clamping force, the middle value of the length is zero, gradually increasing to both sides, the value reflects the distance between the two right angle plates, and the worker can accurately control the final locking position of the tool according to the size of the sensor.

[0014] The sensor fixing tool for the fissure rock mechanics servo testing machine has the following beneficial effects:

[0015] 1. The sensor fixing tool for the fissure rock mechanics servo testing machine has the following beneficial effects:

[0016] 2. The sensor fixing tool for the fissure rock mechanics servo testing machine can be used for processing and fixing sensors of different sizes by adjusting the positions of the limiting rod, the right angle plate and the limiting piece, meets the processing and fixing requirements of various sensors on the fissure rock mechanics servo testing machine, and has a wide application range.

[0017] 3. The sensor fixing tool for the fissure rock mechanics servo testing machine has the following beneficial effects:

[0018] 4. The sensor fixing tool for the fissure rock mechanics servo testing machine can limit the position of the sensor processing piece, and the constraint forces received by each part are roughly the same by cooperating with the setting of the limiting belt, so that the rupture of the sensor shell can be further avoided, and the product quality is improved, and the precision and stability after production are guaranteed.

[0019] The specific embodiments of the utility model are disclosed in detail with reference to the description and drawings below, the principle of the utility model can be adopted, and it should be understood that the embodiments of the utility model are not limited in scope, and the embodiments of the utility model include many changes, modifications and equivalents. DRAWINGS

[0020] Figure 1 The utility model relates to an axis measurement drawing of the utility model;

[0021] Figure 2The utility model discloses a three -dimensional structure schematic diagram for the utility model;

[0022] Figure 3 The utility model discloses a bottom view for the utility model;

[0023] Figure 4 The utility model discloses a structure schematic diagram for connecting ball and its connecting piece in the utility model.

[0024] In the drawing: 1, base; 2, first limiting mechanism; 21, limiting piece; 22, limiting knob; 23, sliding ring; 24, limiting groove; 3, vertical rod; 4, limiting rod; 5, second limiting mechanism; 51, right angle plate; 52, antiskid strip; 53, upper pressing plate; 54, limiting band; 6, spring; 7, cam; 8, manual rod; 9, connecting ball; 10, connecting piece; 11, disc; 12, mounting lug; 13, drive rod. DETAILED DESCRIPTION

[0025] In order to make the utility model's purpose, technical scheme and advantage more clear and obvious, below through the drawing and example, this utility model carries out further detailed description.But it should be understood, the specific example described here is only used to explain the utility model, and is not used to limit the scope of the utility model.

[0026] It should be noted that when an element is referred to as "provided on" or "provided with" another element, it can be directly on the other element or there can be a middle element, and when an element is referred to as "connected to" or "connected with" another element, it can be directly connected to the other element or there can be a middle element, and "fixedly connected" means fixed connection, and there are many ways of fixed connection, which are not the protection scope of the present application, and the terms "vertical", "horizontal", "left", "right" and similar expressions used in the present application are only for the purpose of illustration and do not represent the only implementation.

[0027] 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 the utility model belongs, and the terms used in the specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model, and the term "and / or" used herein includes any and all combinations of one or more related listed items;

[0028] Example one

[0029] Reference Figures 1-4The utility model provides a technical scheme: a sensor fixing tool for fissured rock mechanics servo testing machine, including base 1, the both ends of base 1 are provided with mounting lug 12, and mounting lug 12 is equipped with multiple equidistance distribution mounting holes, for fixing the position of base 1, base 1 is equipped with positioning groove, base 1 is provided with two vertical rods 3 on the outside of positioning groove, and two vertical rods 3 are located on the diagonal line extension line of positioning groove, the upper end of above-mentioned two vertical rods 3 is fixedly connected with the horizontal setting limiting rod 4, and the lower end passes through base 1 and is rotatably connected with the horizontal setting drive rod 13, two drive rods 13 are connected with two groups of springs 6, the middle of two groups of springs 6 is provided with cam 7, the side of cam 7 is provided with two central symmetrical track grooves, drive rod 13 is installed with the connecting ball 9 matched with track groove, and connecting ball 9 is limited to slide in track groove, can avoid drive rod 13 to separate from the control of cam 7, guarantees the stability of structure, cam 7 is rotatably installed at the bottom center of base 1 through the shaft, and the bottom end of the shaft is connected with manual lever 8, and manual lever 8 extends to the outside of base 1, and handle is provided with antiskid sleeve, the antiskid sleeve is rubber antiskid sleeve, reduces the operating error when producing and processing, the end of the remote vertical rod 3 of above-mentioned two limiting rods 4 is equipped with second limiting mechanism 5, and two second limiting mechanisms 5 all include right angle plate 51, antiskid strip 52, upper pressing plate 53 and limiting band 54, above-mentioned right angle plate 51 is right angle plate piece, and is fixedly installed on the end of limiting rod 4 on the back, upper pressing plate 53 is horizontally fixed on the upper end of right angle plate 51, and the lower surface of upper pressing plate 53 and the side end surface of right angle plate 51 are all attached with antiskid strip 52, and the two sides of two right angle plates 51 are connected through limiting band 54, limiting band 54 is elastic rubber band, connects the two side ends of right angle plate 51, and the inside is provided with a plurality of antiskid convex grains, when fixing sensor shell, the whole restraint is carried out to its shell, avoids the contour from deforming.

[0030] Referring to Figures 1-4 , first limiting mechanism 2 is arranged between manual lever 8 and base 1, and is used for limiting the position of manual lever 8 after movement, and the specific structure includes limiting piece 21, limiting knob 22, sliding ring 23 and limiting groove 24, the limiting groove 24 is a rectangular groove arranged on the base 1, the limiting piece 21 is slidingly fitted in the limiting groove 24, the bottom end of the limiting piece 21 is fixedly connected with the sliding ring 23, and the upper part of the limiting piece 21 is screw-connected with the limiting knob 22, and the base 1 is provided with a length scale on one side of the limiting groove 24, so that the operator can control the clamping force conveniently.

[0031] Referring to Figure 1 , 2The connecting part of the right angle plate 51 and the limiting rod 4 is provided with a connecting piece 10, and the two are connected through the connecting piece 10, the upper end of the connecting piece 10 passes through the limiting rod 4, and a disc 11 is fixed, the limiting rod 4 and the disc 11 are provided with the same pin holes which are circular and equidistantly distributed, one group of the pin holes are matched with limiting pins, the limiting pins are column bodies with thick upper part and thin lower part.

[0032] Working principle: the worker rotates the manual rod 8 according to the size of the sensor to be processed, the two driving rods 13 are pushed outwards through the rotation of the cam 7, so that the vertical rod 3 and the limiting rod 4 are rotated, after the rotation to the position where the space is greater than the size of the sensor to be processed, the limiting knob 22 is tightened to fix the position of the manual rod 8, then the limiting belt 54 is pulled, the sensor processing piece is placed in the positioning groove, the limiting belt 54 is preliminarily fixed, then the right angle plate 51 is adjusted to be clamped on the edge of the sensor shell, the right angle piece 51 and the upper pressing piece 53 cooperate to limit the position movement in three dimensions on one side, after fixing, the limiting pin is inserted into the corresponding limiting pin hole, the two second limiting mechanisms 5 can completely limit the position movement, and further limiting is achieved, then the limiting knob 22 is loosened, the limiting piece 21 slides in the limiting groove 24, the length scale on the limiting groove 24 is convenient for the worker to check the position size, so that the clamping force of the sensor shell is accurately controlled, and the damage of the sensor shell is avoided.

[0033] Embodiment two

[0034] Different from the embodiment one, the vertical rod 3 is a telescopic rod, and the application range of the sensor can be further expanded.

[0035] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement or improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sensor fixing fixture for a fractured rock mechanics servo testing machine, characterized in that: The invention comprises a base (1), wherein a positioning groove is provided on the base (1), and two vertical rods (3) are provided on the outside of the positioning groove, and the two vertical rods (3) are located on a set of diagonal extension lines of the positioning groove, the upper ends of the two vertical rods (3) are fixedly connected to a horizontally arranged limit rod (4), and the lower ends pass through the base (1) and are rotatably connected to a horizontally arranged driving rod (13), two groups of springs (6) are connected between the two driving rods (13), and a cam (7) is provided between the two groups of springs (6), and the cam (7) is rotatably installed at the bottom center of the base (1) through an axis, and the bottom end of the axis is connected to a manual rod (8), and the manual rod (8) is connected to the bottom end of the axis. A first limiting mechanism (2) is provided between the movable rod (8) and the base (1); a second limiting mechanism (5) is provided at one end of the two limiting rods (4) away from the vertical rod (3); the two second limiting mechanisms (5) each comprise a right-angle plate (51), an anti-slip strip (52), an upper pressure plate (53) and a limiting belt (54); the back of the right-angle plate (51) is fixedly mounted on the end of the limiting rod (4); the upper pressure plate (53) is horizontally fixed to the upper end of the right-angle plate (51); the lower surface of the upper pressure plate (53) and the side end surface of the right-angle plate (51) are both attached with an anti-slip strip (52); and both sides of the two right-angle plates (51) are connected by a limiting belt (54).

2. The sensor fixing fixture for a fractured rock mechanics servo testing machine according to claim 1, characterized in that: Mounting ears (12) are provided at both ends of the base (1), and a plurality of mounting holes distributed at equal intervals are provided on the mounting ears (12).

3. The sensor fixing fixture for a fractured rock mechanics servo testing machine according to claim 2, characterized in that: Two centrally symmetrical track grooves are provided on the side of the cam (7), and a connecting ball (9) matching the track grooves is installed on the driving rod (13).

4. The sensor fixing fixture for a fractured rock mechanics servo testing machine according to claim 3, characterized in that: The first limiting mechanism (2) comprises a limiting member (21), a limiting knob (22), a sliding ring (23) and a limiting groove (24). The limiting groove (24) is a rectangular groove provided on the base (1). The limiting member (21) is slidably fitted in the limiting groove (24). The bottom end of the limiting member is fixedly connected to the sliding ring (23), and the top end is spirally connected to the limiting knob (22).

5. The sensor fixing fixture for a fractured rock mechanics servo testing machine according to claim 4, characterized in that: The limiting member (21) is an I-shaped member, and a protruding column that matches the limiting knob (22) is provided on its upper end.

6. The sensor fixing fixture for a fractured rock mechanics servo testing machine according to claim 5, characterized in that: The limiting belt (54) is an elastic rubber belt, which connects the two side ends of the right-angle plate (51) and has a plurality of anti-slip convex particles arranged on the inner side.

7. The sensor fixing fixture for a fractured rock mechanics servo testing machine according to claim 6, characterized in that: The manual rod (8) extends to the outside of the base (1), and an anti-slip sleeve is provided at the handle, and the anti-slip sleeve is a rubber anti-slip sleeve.

8. The sensor fixing fixture for a fractured rock mechanics servo testing machine according to claim 7, characterized in that: A connecting piece (10) is provided at the connection between the right-angle plate (51) and the limiting rod (4), and the two are rotatably connected through the connecting piece (10). The upper end of the connecting piece (10) passes through the limiting rod (4) and is fixed with a disc (11). The limiting rod (4) and the disc (11) are provided with the same circular pin holes distributed at equal intervals. A limiting pin is fitted in one group of the pin holes, and the limiting pin is a column that is thick at the top and thin at the bottom.

9. The sensor fixing fixture for a fractured rock mechanics servo testing machine according to claim 8, characterized in that: The base (1) is provided with a length scale on one side of the limiting groove (24).

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