Vibrating wire type anchor cable dynamometer

Abstract

The utility model discloses a vibrating wire type anchor cable dynamometer, which comprises a dynamometer body, the dynamometer body comprises a measuring steel cylinder and an observation cable, the outer side of the measuring steel cylinder is fixedly connected with a protective steel cylinder, the protective steel cylinder is fixedly arranged on the outer wall of the measuring steel cylinder, and the observation cable is arranged on the outer wall of the measuring steel cylinder. A vibrating wire strain gauge is arranged on the outer wall of the upper side of the measuring steel cylinder, and one end of the observation cable is fixedly connected with the measuring steel cylinder. According to the vibrating wire type anchor cable dynamometer provided by the utility model, firstly, the sealing washer is installed on the outer wall of the measuring steel cylinder, the protective steel cylinders are installed through the fixing bolts, and the two protective steel cylinders are symmetrically installed on the outer side of the sealing washer, so that the measuring steel cylinder is tightly connected to the outer wall of the measuring steel cylinder, and assembly is completed; and then the dynamometer body is mounted between the pressure-bearing pedestal and the working anchor for testing, and the protection steel cylinder and the sealing washer can be dismounted for recovery when data is inaccurate or other conditions are encountered, so that the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to anchor cable tension technology field, concretely relates to a vibrating wire type anchor cable dynamometer. BACKGROUND

[0002] The dynamometer is mainly used for measuring and monitoring the tension and loss of pre-stress in various anchor rods, anchor cables, rock bolts and large-scale stress reinforced concrete structures. As an important rock and soil anchoring technology, pre-stressed anchor cable is widely used in industrial and civil construction, water conservancy and hydropower industries.

[0003] The application number: CN201710442472.6 provides an assembly type anchor cable dynamometer and a using method, which is convenient to install and disassemble, has high measurement structure precision, has the advantages of collecting data at any time, and is convenient for the application of anchoring and monitoring engineering in the fields of bridges, slopes and water conservancy. However, in the above application, the assembly type measurement system cannot guarantee the accuracy of measurement, and the efficiency of material recycling is low, which causes resource waste and is not conducive to use.

[0004] In summary, the technical problems existing in the prior art described above need to be solved. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a vibrating wire type anchor cable dynamometer to solve the problem that the assembly type measurement system cannot guarantee the accuracy of measurement and the efficiency of material recycling is low.

[0006] To achieve the above object, the utility model provides the following technical scheme: a vibrating wire type anchor cable dynamometer, comprising a dynamometer body, the dynamometer body comprises a measurement steel cylinder, an observation cable, the outer side of the measurement steel cylinder is fixedly connected with a protection steel cylinder, the protection steel cylinder is fixedly installed on the outer wall of the measurement steel cylinder, the outer wall of the upper side of the measurement steel cylinder is provided with a vibrating wire type strain gauge, one end of the observation cable is fixedly connected with the measurement steel cylinder.

[0007] Preferably, a sealing washer is arranged between the measurement steel cylinder and the protection steel cylinder, the sealing washer is sleeved on the outer wall of the measurement steel cylinder and fixedly connected with the protection steel cylinder.

[0008] Preferably, the protection steel cylinder is two, the two protection steel cylinders form a hollow cylinder and are symmetrically installed on the outer wall of the measurement steel cylinder, and the two protection steel cylinders are provided with fixed bolts.

[0009] Preferably, the two ends of the protection steel cylinder are provided with connecting blocks, one end of the fixed bolt penetrates through the connecting block, and a fixed nut is threadedly installed at one end of the fixed bolt.

[0010] Preferably, the protective steel cylinder is provided with an arc-shaped opening respectively, and the observation cable penetrates through the arc-shaped opening and is fixedly connected with the measuring steel cylinder.

[0011] Preferably, the outer wall of the measuring steel cylinder is provided with a recess, and the sealing gasket is movably installed in the recess.

[0012] Preferably, the sealing gasket is made of rubber.

[0013] The technical effects and advantages of the utility model are as follows: firstly, the force gauge body is assembled, the sealing gasket is installed on the outer wall of the measuring steel cylinder, the protective steel cylinder is installed through the fixing bolt, the two protective steel cylinders are symmetrically installed on the outer side of the sealing gasket, the measuring steel cylinder is tightly connected on the outer wall of the measuring steel cylinder, the vibrating wire strain gauge is arranged on the measuring steel cylinder, the observation cable for connecting and transmitting the measurement data is also arranged on the measuring steel cylinder, the assembled force gauge body is installed between the pressure bearing pad seat and the working anchor, and the test is carried out; when the data is inaccurate or other conditions are encountered, the protective steel cylinder and the sealing gasket can be removed and recycled, and the cost expenditure is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Fig. 2 It is an explosion structure schematic view of the utility model;

[0016] Fig. 3 It is a force gauge body installation structure schematic view of the utility model.

[0017] In the drawing: 1, measuring steel cylinder; 2, observation cable; 3, protective steel cylinder; 4, vibrating wire strain gauge; 5, sealing gasket; 6, fixing bolt; 7, connecting block; 8, arc-shaped opening; 9, recess; 100, force gauge body; 200, pressure bearing pad seat; 300, working anchor; 400, steel strand. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] The utility model provides a Figs. 1-3The vibrating string anchor cable dynamometer shown in the figure comprises a measuring meter body, the measuring meter body comprises a measuring cylinder 1, an observation cable 2, the outer side of the measuring cylinder 1 is fixedly connected with a protective cylinder 3, the protective cylinder 3 is fixedly installed on the outer wall of the measuring cylinder 1, the outer wall of the upper side of the measuring cylinder 1 is provided with a vibrating string strain gauge 4, one end of the observation cable 2 is fixedly connected with the measuring cylinder 1.

[0020] First, the dynamometer body 100 is assembled, the sealing washer 5 is installed on the outer wall of the measuring cylinder 1, and the protective cylinder 3 is installed through the fixing bolt 6, the two protective cylinders 3 are symmetrically installed on the outer side of the sealing washer 5, so that the measuring cylinder 1 is tightly connected to the outer wall of the measuring cylinder 1, the vibrating string strain gauge 4 is arranged on the measuring cylinder 1, and the observation cable 2 for connecting and transmitting measurement data is also arranged on the measuring cylinder 1; the assembled dynamometer body 100 is installed on the pressure pad seat 200, specifically, the steel strand 400 passes through the center hole of the dynamometer body 100, the dynamometer body 100 is placed between the pressure pad seat 200 and the working anchor 300, and is placed stably, when installing the dynamometer body 100, it should be noted that the two ends should be cleaned between the pressure pad seat 200, and there should be no iron filings and sand particles, otherwise it will affect the measurement value, and the axis of the dynamometer body 100 should be coaxial with the axis of the cable to be measured, if it is found that the measurement division of the four directions is not equal, that is, there is geometric eccentricity, it should be adjusted in time to ensure the accuracy of the test data; the value of the dynamometer body 100 under the condition of no load should be measured in time after the dynamometer body 100 is installed and positioned, as the initial value, and subsequent measurement is carried out, the measuring cylinder 1 is assembled through the protective cylinder 3, the protection of the measuring cylinder 1 is increased, the measuring cylinder 1 is protected through the sealing washer 5 arranged between the measuring cylinder 1 and the protective cylinder 3, and the gap between the measuring cylinder 1 and the protective cylinder 3 after installation is reduced, the measuring cylinder 1 is protected, the data measured by the measuring cylinder 1 is transmitted through the observation cable 2, when the measurement accuracy of the measuring cylinder 1 is found to be reduced or damaged, the protective cylinder 3 and the sealing washer 5 can be removed for recycling, and manual inspection is carried out to determine whether it can be recycled, so as to solve the problem of high replacement cost.

[0021] Specifically, the sealing washer 5 is arranged between the measuring cylinder 1 and the protective cylinder 3, the sealing washer 5 is sleeved on the outer wall of the measuring cylinder 1 and is fixedly connected with the protective cylinder 3. The outer wall of the measuring cylinder 1 is provided with a notch 9, and the sealing washer 5 is movably installed in the notch 9. The sealing washer 5 is made of rubber. The sealing washer 5 can be referred to in the figure Fig. 2As shown, the recess 9 is arranged on the outer wall of the measuring cylinder 1, and the sealing washer 5 is fixedly arranged on the outer side of the measuring cylinder 1. The sealing washer 5 is composed of two annular rings and vertically arranged arc blocks. The two annular rings are fixedly connected with the recess 9. The arc blocks are arranged in a circumferential array between the two sealing washers 5, and the two ends of the arc blocks are fixedly connected with the annular rings. At least one opening is arranged on the annular ring, which is used for passing the observation cable 2. When the sealing washer 5 is installed, the observation cable 2 can pass through the annular ring and is located between the two arc blocks. After the sealing washer 5 is completely sleeved, the protective cylinder 3 can be fixed on the outer side of the sealing washer 5.

[0022] Specifically, the protective cylinder 3 is two, and the two protective cylinders 3 form a hollow cylinder and are symmetrically arranged on the outer wall of the measuring cylinder 1. The two protective cylinders 3 are provided with fixing bolts 6. The two ends of the protective cylinder 3 are provided with connecting blocks 7. One end of the fixing bolt 6 penetrates the connecting block 7, and a fixing nut is threadedly arranged on one end of the fixing bolt 6. The protective cylinder 3 is provided with arc-shaped openings 8. The observation cable 2 penetrates the arc-shaped openings 8 and is fixedly connected with the measuring cylinder 1. For details, please refer to the accompanying drawings. Fig. 2 As shown, the connecting block 7 is arranged on the protective cylinder 3. The two protective cylinders 3 can be connected through the connecting block 7. The connecting block 7 arranged on the two protective cylinders 3 is fixedly connected through the cooperation of the fixing bolt 6 and the fixing nut, and always maintains the fixed state with the sealing washer 5.

[0023] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A vibrating wire anchor load cell comprising a load cell body (100) comprising a measuring steel cylinder (1), an observation cable (2), characterized in that: The outer side of the measuring steel cylinder (1) is fixedly connected with a protective steel cylinder (3), the protective steel cylinder (3) is fixedly installed on the outer wall of the measuring steel cylinder (1), the outer wall of the upper side of the measuring steel cylinder (1) is provided with a vibrating wire strain gauge (4), and one end of the observation cable (2) is fixedly connected with the measuring steel cylinder (1).

2. A vibrating wire cable dynamometer according to claim 1, wherein: A sealing washer (5) is arranged between the measuring steel cylinder (1) and the protective steel cylinder (3), the sealing washer (5) is sleeved on the outer wall of the measuring steel cylinder (1) and is fixedly connected with the protective steel cylinder (3).

3. A vibrating wire cable load cell according to claim 2 wherein: The protective steel cylinder (3) is two, the two protective steel cylinders (3) form a hollow cylinder and are symmetrically installed on the outer wall of the measuring steel cylinder (1), and the two protective steel cylinders (3) are provided with fixed bolts (6).

4. A wire string anchor load cell according to claim 3, wherein: Both ends of the protective steel cylinder (3) are provided with connecting blocks (7), one end of the fixed bolt (6) penetrates the connecting block (7), and a fixed nut is threadedly installed at one end of the fixed bolt (6).

5. A wire string anchor load cell according to claim 4, wherein: The protective steel cylinder (3) is respectively provided with an arc-shaped opening (8), the observation cable (2) penetrates the arc-shaped opening (8) and is fixedly connected with the measuring steel cylinder (1).

6. A wire string anchor load cell according to claim 2, wherein: The outer wall of the measuring steel cylinder (1) is provided with a recess (9), and the sealing washer (5) is movably installed in the recess (9).

7. A wire string anchor load cell according to claim 2, wherein: The sealing washer (5) is made of rubber.

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