Portable pantograph tension tester

Abstract

The utility model relates to the technical field of tension meters, in particular to a portable pantograph tension tester, which comprises a casing, a panel, a tension test unit, a digital display panel and a PCB (printed circuit board), the panel and the digital display panel are both mounted in front of the casing, the tension test unit is mounted at the top of the casing, the PCB is mounted in the casing, and the panel is mounted on the top of the casing. And a gyroscope accelerometer and a main control chip are arranged on the PCB. According to the utility model, the gyroscope accelerometer and the main control chip can collect the acceleration in the movement process in real time, and the additional force generated by acceleration is corrected according to the Newton's second law; the digital display panel can display the current speed in real time, and a user can adjust the speed by himself / herself to meet the speed range of 5 + / -0.5 cm / s required by a test outline, so that the problem of constant-speed measurement is solved. In addition, the problem of angle deviation can be solved through the gyroscope, and the optimal measurement site can be positioned through the laser sensor. The device is small in size and convenient to carry.

Description

TECHNICAL FIELD

[0001] The utility model relates to tension meter technical field, concretely is a kind of portable pantograph tension tester. BACKGROUND

[0002] Electric equipment that electric power traction locomotive obtains electric energy from contact network, is installed on the top of locomotive or motor car. Pantograph working position contact pressure is an important standard to judge whether pantograph is normal work, and Ministry of Railways sets qualified standard for the pantograph lifting pressure value of different pantographs.

[0003] Currently, pantograph lifting pressure review generally adopts two kinds of equipment: spring scale or tension testing device. The operation of spring scale is as follows: first, locomotive maintenance personnel climb on the top of car; then hang spring scale on the pantograph lifting pantograph slide plate; finally, pull down spring scale to a certain height, and read tension meter reading. The disadvantage of spring scale is that spring scale cannot maintain uniform speed well during pulling down process, and the position point of pulling down is also prone to deviation, which leads to inaccurate measurement of tension data. Tension testing device is a relatively intelligent testing device, and pulling down process and tension data reading are very convenient; but the disadvantage is that it is large in size, and it is not convenient to carry it when locomotive maintenance personnel climb on the top of car, so it is usually necessary to place tension testing device in advance on the top of car, and then take tension testing device after locomotive maintenance personnel climb on the top of car.

[0004] The existing patent CN105651422B discloses a pantograph pressure measuring device. Since the upper connecting piece, tension meter and lower connecting piece are kept in vertical state, the reading of tension meter can be kept stable, and the measurement accuracy is improved. In addition, the pantograph pressure measuring device is simple to operate and convenient to carry.

[0005] Based on the improvement of existing technology, promote the alternative update of technology, and urgently need to provide another kind of tension testing device which can ensure uniform speed during pulling down process, obtain accurate tension data and is convenient to carry. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of portable pantograph tension tester to solve the problems in prior art.

[0007] In order to solve the above technical problems, the utility model provides the following technical scheme: a kind of portable pantograph tension tester, and the tension tester includes shell, panel, tension testing unit, digital display board and PCB circuit board, the panel and the digital display board are both installed on the front of the shell, the tension testing unit is installed on the top of the shell, PCB circuit board is installed in the shell, and the PCB circuit board is provided with gyroscope accelerometer and main control chip.

[0008] Further, the inside of the shell is also provided with a laser sensor close to the bottom.

[0009] Further, the PCB circuit board is also provided with a communication chip.

[0010] Further, the tension test unit comprises a tension hook and a tension sensor; an installation plate is integrally injection molded in the upper part of the shell, the installation plate is provided with the installation hole, and the tension sensor is installed in the installation hole; a connecting hole is formed in the top of the shell for the tension hook to pass through, and the tension hook is threadedly connected with the tension sensor through the through hole.

[0011] Further, the tension hook comprises a tension part, a connecting part and an installation part which are sequentially connected; the tension part is a half-round-shaped pull ring, the connecting part is a disc with the same shape as the connecting hole on the shell, and the installation part is a cylinder with a threaded hole in the inside.

[0012] Further, a pair of first convex ribs are arranged above and below the inner wall of the shell, and screw holes are formed in the first convex ribs and used for installing the panel.

[0013] Further, a pair of second convex ribs are arranged above and below the inner wall of the shell, and screw holes are formed in the second convex ribs and used for installing the PCB circuit board.

[0014] Further, a finger holding part is arranged on the side of the shell away from the digital display board.

[0015] Further, a battery and a power supply controller are installed in the inside of the shell, and a power supply charging port is formed in the bottom of the shell.

[0016] Further, the length of the tension tester ranges from 3cm to 6cm, the width ranges from 3cm to 6cm, and the height ranges from 15cm to 25cm.

[0017] Compared with the prior art, the tension tester has the advantages that:

[0018] 1. The tension tester can meet the requirements of tension in a uniform speed state, so as to improve the accuracy of measured tension data, the main control chip can collect the acceleration in the movement process in real time, correct the additional force generated by acceleration according to Newton's second law, the digital display board can display the current speed in real time, the user can adjust the speed to meet the speed range of 5±0.5cm / s required by the test outline, and the problem of uniform speed measurement is solved.

[0019] 2. The utility model discloses a gyroscope accelerometer can detect the current motion pose, obtains the angle of the tension direction and vertical direction, if the angle of deviation is too big, the user can correct the angle in time by oneself, in addition, the main control chip 152 can correct the tension according to the angle, namely the real tension value is the component of the test tension value in the vertical direction, thereby solve the angle deviation problem in the strength test process.

[0020] 3. The utility model discloses a tension sensor can obtain the data of some measurement more accurate tension data, through laser sensor can monitor the distance of the current position of tension testing instrument from the ground, obtains height data, and, through the gyroscope accelerometer and main control chip according to the acceleration sensor data secondary integral to the travel of movement carries out a correction, the tension testing instrument in the test process with certain frequency continuously gathers tension and height value, and this forms tension curve diagram, after using digital display board shows, the user can measure the tension according to the recommended optimal position point.

[0021] 4. The utility model discloses through digital display board and main control chip, the tension data obtained does not need manual record, and it can record data and show data by itself, intelligent convenient.

[0022] 5. The utility model discloses small, convenient for the user to carry. ACCREDITATION OF DRAWINGS

[0023] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings,

[0024] Figure 1 It is the whole structure schematic diagram of tension testing instrument;

[0025] Figure 2 It is the structure schematic diagram behind hidden panel and digital display board;

[0026] Figure 3 It is the structure schematic diagram of shell front face;

[0027] Figure 4 It is the structure schematic diagram of tension hook;

[0028] Figure 5 It is the structure schematic diagram of shell back face.

[0029] In the diagram, 1. Tensile tester; 11. Housing; 111. First rib; 112. Second rib; 113. Power charging port; 114. Mounting plate; 115. Mounting hole; 116. Connecting hole; 117. Finger grip; 12. Panel; 13. Digital display panel; 14. Tensile testing unit; 141. Tensile hook; 1411. Tensile part; 1412. Connecting part; 1413. Mounting part; 142. Tensile sensor; 15. PCB circuit board; 151. Gyroscope accelerometer; 152. Main control chip; 153. Communication chip; 16. Battery. Detailed Implementation

[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0031] Example 1

[0032] like Figures 1-2 As shown, this embodiment 1 discloses a portable pantograph tension tester 1, which includes a housing 11 and a panel 12. A pair of first protruding ribs 111 are respectively provided at the top and bottom of the interior of the housing 11. Screw holes are opened in the first protruding ribs 111, and the panel 12 is connected to the housing 11 via screw and bolt holes. Simultaneously, a digital display panel 13 is also provided on the housing 11. The digital display panel 13 has a circular design and is installed on the upper part of the panel 12 for easy viewing by the user. A push-button switch is also provided on the surface of the housing 11.

[0033] Based on practical applications, such as Figure 1 and Figure 5 As shown, the tensile tester 1 has a length range of 3–6 cm, a width range of 3–6 cm, and a height range of 15–25 cm, making it convenient for users to hold, insert into clothing pockets, or put into backpacks. Meanwhile, the back of the outer casing 11 has a textured design serving as a finger grip 117.

[0034] Based on practical applications, such as Figure 2 and Figure 4As shown, the top of the tension tester 1 is also provided with a tension testing unit 14 for hanging on the pantograph to measure the tension. The tension testing unit 14 includes a tension hook 141 and a tension sensor 142: the upper part of the inside of the shell 11 is integrally formed with a mounting plate 114 of the tension sensor 142, the mounting plate 114 is provided with a mounting hole 115, and the tension sensor 142 is installed in the mounting hole 115. The top of the shell 11 is provided with a connecting hole 116 through which the tension hook 141 passes, and the middle section of the tension hook 141 passes through the through hole and the end of the tension hook 141 is threadedly connected with the tension sensor 142. The structure of the tension hook 141 includes a tension part 1411, a connecting part 1412 and a mounting part 1413 connected in sequence: the tension part 1411 is a half-round pull ring, the connecting part 1412 is a disc with the same shape as the connecting hole 116 on the shell 11, and the mounting part 1413 is a cylindrical body with a threaded hole inside, which is connected with the threaded column of the tension sensor 142. The tension testing unit 14 of the present embodiment is easy to install and maintain.

[0035] Based on actual application, such as Figure 2 and Figure 3 As shown, the inside of the shell 11 is also provided with a PCB circuit board 15, a battery 16, a battery controller and the like. The upper and lower parts of the inner wall of the shell 11 are respectively provided with a pair of second ribs 112 for mounting the PCB circuit board 15. The length of the second rib 112 is lower than that of the first rib 111 to avoid the installation of the panel 12. The second rib 112 is provided with a screw hole, and the PCB circuit board 15 is mounted on the second rib 112 by screws and screw holes. The PCB circuit board 15 is provided with a gyroscope accelerometer 151, a main control chip 152, a communication chip 153 and the like. The gyroscope accelerometer 151 can obtain the angle and acceleration in real time, thereby obtaining the position information of the tension tester 1. The inside of the shell 11 near the bottom is also provided with a laser sensor (not shown in the figure) for measuring the distance between the tension tester 1 and the ground. The gyroscope accelerometer 151, the tension sensor 142 and the laser sensor are connected with the main control chip 152 and the communication chip 153. The communication chip 153 is connected with the digital display panel 13 or the external communication, and can display data or wirelessly transmit data.

[0036] Based on actual application, such as Figure 3 As shown, the bottom of the shell 11 is provided with a power charging port 113, which can charge the tension tester 1.

[0037] The operation principle of the embodiment is as follows: in use, the user can hold the tension tester 1 with one hand or put it into a pocket or a tool bag before climbing onto the roof of a vehicle. Then the tension tester 1 is hung on the pantograph, and the tension tester 1 is started. The gyroscope accelerometer 151 and the main control chip 152 can collect the acceleration in the motion process in real time, and correct the additional force generated by acceleration according to Newton's second law; the digital display panel 13 can display the current speed in real time, and the user can adjust the speed to meet the speed range of 5±0.5cm / s required by the test outline, so as to pull down at a constant speed. The gyroscope accelerometer 151 and the main control chip 152 can detect the current motion pose, obtain the included angle between the tension direction and the vertical direction, and if the included angle deviates too much, the user can correct the angle in time to avoid the angle deviation in the test process. In addition, the main control chip 152 can correct the tension according to the angle, that is, the true tension value is the component of the test tension value in the vertical direction.

[0038] The embodiment 1 can also locate the coordinates of the measurement position. The horizontal axis is the height, which can be monitored by the laser sensor to monitor the distance between the current position of the tension tester 1 and the ground, and the gyroscope accelerometer 151 and the main control chip 152 can correct the motion stroke according to the second integral of the acceleration sensor data. The vertical axis is the tension, which is obtained by the tension sensor. In work, the tension tester continuously collects the tension and height values at a certain frequency during the test process, so as to form a tension curve, and then the user sets the position points, such as the force values at 0.5m, 1m and 1.5m from the ground, to obtain the test results.

[0039] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any mark in the claims should not be regarded as limiting the involved claims.

Claims

1. A portable pantograph tension tester characterized by, The tension tester (1) comprises a shell (11), a panel (12), a tension testing unit (14), a digital display panel (13) and a PCB circuit board (15), the panel (12) and the digital display panel (13) are both installed on the front of the shell (11), the tension testing unit (14) is installed on the top of the shell (11), the PCB circuit board (15) is installed inside the shell (11), and the PCB circuit board (15) is provided with a gyroscope accelerometer (151) and a main control chip (152).

2. The portable pantograph tension tester of claim 1, wherein, The inside of the shell (11) is also provided with a laser sensor close to the bottom.

3. The portable pantograph tension tester of claim 1 or 2, wherein, The PCB circuit board (15) is also provided with a communication chip (153).

4. The portable pantograph tension tester of claim 3, wherein, The tension testing unit (14) comprises a tension hook (141) and a tension sensor (142); the upper part of the shell (11) is integrally injection molded with a mounting plate (114), the mounting plate (114) is provided with a mounting hole (115), and the tension sensor (142) is installed in the mounting hole (115); the top of the shell (11) is provided with a connecting hole (116) through which the tension hook (141) passes, and the tension hook (141) is threadedly connected with the tension sensor (142) through the through hole.

5. The portable pantograph tension tester of claim 4, wherein, The tension hook (141) comprises a tension part (1411), a connecting part (1412) and a mounting part (1413) connected in sequence: the tension part (1411) is a half-round pull ring, the connecting part (1412) is a disc with the same shape as the connecting hole (116) on the shell (11), and the mounting part (1413) is a cylinder with a threaded hole in the inside.

6. The portable pantograph tension tester of claim 5, wherein, A pair of first ribs (111) are arranged above and below the inner wall of the shell (11), and screw holes are formed in the first ribs (111) for mounting the panel (12).

7. The portable pantograph tension tester of claim 6, wherein, A pair of second ribs (112) are arranged above and below the inner wall of the shell (11), and screw holes are formed in the second ribs (112) for mounting the PCB circuit board (15).

8. The portable pantograph tension tester of claim 1, wherein, The side of the shell (11) away from the digital display panel (13) is provided with a finger holding part (117).

9. The portable pantograph tension tester of claim 1, wherein, The inside of the shell (11) is also provided with a battery (16) and a power supply controller, and the bottom of the shell (11) is provided with a power supply charging port (113).

10. The portable pantograph tension tester of claim 1, wherein, The length of the tension tester (1) ranges from 3cm to 6cm, the width ranges from 3cm to 6cm, and the height ranges from 15cm to 25cm.

Images