CN210128783U - Holding force and deflection measuring device of electroscope - Google Patents

Abstract

The utility model discloses a power and deflection measurement device are held to electroscope, be in including support frame, setting workstation, preceding support measuring mechanism and back support measuring mechanism on the support frame, preceding support measuring mechanism is including setting up power measuring subassembly and preceding support piece are held on the workstation, back support measuring mechanism is including sliding the setting and be in moving frame and setting on the support frame are in last deflection measuring subassembly and the back support piece of moving frame. The utility model discloses a power and deflection measurement device are held to electroscope, structural design is reasonable, and is simple to use, convenient operation, and can be applicable to the electroscope of different specifications, replace manual measurement, improved degree of automation, measuring result is more accurate, improves the electroscope and holds power and the experimental flexibility and the accuracy of deflection.

Description

Grip force and deflection measuring device for electroscope

technical field

The utility model relates to a device for measuring the holding force and deflection of an electroscope.

Background technique

During the test of the integral electroscope, the holding force and deflection test shall be carried out in accordance with the provisions of Article 6.4.2 of DL/T 740-2014 "Capacitive Electroscope".

During the test, the electroscope is placed horizontally through two supports, and the support (front support) of the contact electrode should be placed 50mm away from the handguard at the end of the handle. The distance between the two supports is used to simulate the distance between the hands. The test layout is shown in Figure 1-2. Figure 1 shows the grip force and deflection test layout when the handle length of the electroscope is less than 1100mm. Figure 2 shows the electroscope Grip force and deflection test arrangement when the handle length is greater than or equal to 1100mm. Grip force is measured at the front support, and its value should be less than 200N. When measuring the holding force, the electroscope is bent due to its own weight, and its deflection should not exceed 10% of the total length of the electroscope. However, there is currently no holding force and deflection measuring device of an integral electroscope on the market.

SUMMARY OF THE INVENTION

In view of this, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a device for measuring the gripping force and deflection of an electroscope, which can accurately measure the gripping force and deflection.

In order to achieve the above object, the utility model adopts the following technical scheme:

A gripping force and deflection measuring device of an electroscope, comprising a support frame, a workbench arranged on the support frame, a front support measurement mechanism and a rear support measurement mechanism, wherein the front support measurement mechanism comprises a support frame arranged on the workbench A gripping force measurement assembly and a front support on the upper support, the rear support measurement mechanism includes a moving frame slidably arranged on the support frame, and a deflection measurement assembly and a rear support arranged on the moving frame. The front support is fixed and located below the electroscope, the rear support can move and is located above the electroscope, a space for fixing the electroscope is formed between the front support and the rear support, and the front support and the rear support are located. The vertical plane of the frame is parallel to the moving direction of the moving frame. The gripping force is measured by the gripping force measuring component, and the deflection is measured by the deflection measuring component. The measuring device is simple to use and can be applied to electroscopes of different specifications instead of manual measurement. , the measurement results are more accurate.

Preferably, the moving frame includes a first support rod and a second support rod respectively disposed on both sides of the workbench, the tops of the first support rod and the second support rod are connected by a cross rod, and the rear support rod The piece is mounted on the cross bar.

More preferably, the deflection measuring assembly includes a deflection indicator and a corresponding deflection measuring scale slidably arranged on the first support rod or the second support rod. The deflection measurement scale has a scale, and the deflection measurement scale can tell how far the deflection indicator has moved.

Deflection refers to the linear displacement of the rod axis in the direction perpendicular to the axis or the linear displacement of the midplane of the plate and shell in the direction perpendicular to the midplane when subjected to force or non-uniform temperature changes.

In some embodiments, the deflection indicator is a laser indicator, which can make a laser indicator line with a certain width. By corresponding the laser to the head of the electroscope, and then through the deflection measurement scale, it can be obtained that the head of the electroscope has sunk. How much distance, can get the size of the deflection.

Further preferably, a vertical guide rail is installed on one of the first support rod and the second support rod, and the deflection indicator is slidably arranged on the vertical guide rail. The upper and lower ends of the vertical guide rail are mounted on one of the first support rod and the second support rod through the guide rail support.

Further preferably, the support frame is provided with a lateral guide rail, the first support rod and the second support rod are mounted with bearings corresponding to the lateral guide rail, and the first support rod and the second support rod pass through the bearings and the second support rod. Lateral rails enable sliding. A plurality of transverse guide rails can be installed on the support frame to ensure the stability of the moving frame when moving and the stability of supporting the moving frame.

Still preferably, a distance scale is provided on the workbench, and a distance indicator is provided on the crossbar corresponding to the distance scale. There is a scale on the distance ruler, and the distance indicator is arranged directly above the distance ruler. The distance indicator is a laser pointer, which can emit a point laser or a laser pointer line with a certain width. Through the distance indicator and the distance ruler, it can be obtained. The distance the clearance indicator moves and the distance between the front and rear supports.

Still preferably, an adjustment assembly for adjusting the upper and lower positions of the rear support is installed on the crossbar; the adjustment assembly includes an adjustment screw that drives the rear support to move up and down, and an adjustment hand that drives the adjustment screw to rotate. wheel. The rear support is arranged in a form that can be adjusted up and down, which can be matched with electroscopes of different sizes. By rotating the adjusting hand wheel, the adjusting screw is driven to rotate, thereby driving the rear support to move up and down, and to adjust the vertical height between the front support and the rear support.

Preferably, the gripping force measurement assembly includes a force sensor, and the front support is disposed above the force sensor. That is, the holding force is the force generated by the electroscope on the front support when the electroscope between the front support point and the rear support point is kept horizontal, and this value is obtained through the force sensor. The holding force is the minimum force of the electroscope to snatch and lift the electroscope in the working state.

Preferably, the front supporting member and the rear supporting member are arranged in an arc shape, the arc-shaped opening of the front supporting member is upward, and the arc-shaped opening of the rear supporting member is downward. The arc setting can better match the electroscope and ensure that the electroscope will not move at will.

Preferably, a control panel and a power switch are also provided on the workbench. The measuring device also includes a power supply for supplying power to the device, either a mobile power supply or 220V commercial power. The power supply can be turned on and off through a power switch to supply power to the device. The control panel is used to set parameters and display some parameters such as grips. Stress, deflection, etc.

Compared with the prior art, the utility model has the advantages that: the gripping force and deflection measuring device of the electroscope of the utility model has reasonable structural design, simple use, convenient operation, and can be applied to electroscopes of different specifications, Instead of manual measurement, the degree of automation is improved, the measurement results are more accurate, and the flexibility and accuracy of the electroscope gripping force and deflection test are improved.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Figure 1 is a schematic diagram of the gripping force and deflection test arrangement when the handle length of the electroscope is less than 1100mm;

Figure 2 is a schematic diagram of the gripping force and deflection test arrangement when the handle length of the electroscope is greater than or equal to 1100mm;

Fig. 3 is the schematic diagram of the grip force and deflection measurement of electroscope in the preferred embodiment of the utility model;

Fig. 4 is the perspective view of the first angle of view of the holding force and deflection measuring device of the electroscope in the preferred embodiment of the present invention;

5 is a perspective view of the second viewing angle of the holding force and deflection measuring device of the electroscope in the preferred embodiment of the present utility model;

6 is a side view of the gripping force and deflection measuring device of the electroscope in the preferred embodiment of the present utility model;

Fig. 7 is the top view of the holding force and deflection measuring device of the electroscope in the preferred embodiment of the present utility model;

Among them: support frame-1, worktable-2, first support rod-31, second support rod-32, cross rod-33, deflection indicator-4, deflection measuring scale-5, lateral guide rail-6, bearing- 7, Spacing ruler-8, Spacing indicator-9, Adjusting screw-10, Adjusting handwheel-11, Rear support-12, Force sensor-13, Front support-14, Control panel-15, Power switch-16 , Vertical rail-17, rail support-18, electroscope-19.

Detailed ways

In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

3-7, the gripping force and deflection measuring device of the electroscope 19 of the present embodiment includes a support frame 1, a workbench 2 arranged on the support frame 1, a front support measurement mechanism and a rear support measurement mechanism, a It is used for the power supply for supplying power to the measuring mechanism, the control panel 15 and the power switch 16 provided on the workbench 2 . The power supply can be mobile power or 220V commercial power. The power switch 16 is used to control the power on and off to supply power to the device. The control panel 15 is used to input parameters and display some parameters such as holding force and deflection. The holding force is the minimum force with which the electroscope 19 is grasped and lifted under the working state.

The front support measurement mechanism includes a gripping force measurement assembly disposed on the workbench 2 and a front support member 14 . The grip force measurement assembly includes a force sensor 13 above which a front support 14 is disposed. That is, the holding force is the force generated by the electroscope 19 on the front support 14 when the electroscope 19 between the front support point and the rear support point is kept horizontal. The force sensor 13 is used to obtain this value, which is convenient, quick and accurate.

The rear support measuring mechanism includes a moving frame slidably arranged on the support frame 1 , a deflection measuring assembly and a rear support 12 arranged on the moving frame.

The moving frame includes a first support rod 31 and a second support rod 32 respectively arranged on both sides of the workbench 2, the tops of the first support rod 31 and the second support rod 32 are connected by a cross rod 33, and the rear support 12 is installed on the cross rod. on rod 33. A vertical guide rail 17 is installed on one of the first support rod 31 and the second support rod 32 , and the deflection indicator 4 is slidably arranged on the vertical guide rail 17 . The upper and lower ends of the vertical guide rail 17 are mounted on one of the first support rod 31 and the second support rod 32 through the guide rail support 18 .

An adjustment assembly for adjusting the up and down position of the rear support 12 is installed on the cross bar 33 ; By rotating the adjusting hand wheel 11, the adjusting screw 10 is driven to rotate, thereby driving the rear support member 12 to move up and down, and the vertical height between the front support member 14 and the rear support member 12 is adjusted. The rear support 12 is arranged in a form that can be adjusted up and down, and can be matched with electroscopes 19 of different sizes.

The support frame 1 is provided with a transverse guide rail 6 , the first support rod 31 and the second support rod 32 are provided with bearings 7 corresponding to the transverse guide rail 6 , and the first support rod 31 and the second support rod 32 are slid through the bearings 7 and the transverse guide rails 6 . . A plurality of transverse guide rails 6 can be installed on the support frame 1 to ensure the stability of the moving frame when moving and the stability of the support for the moving frame.

In this embodiment, the length of the first support rod 31 is greater than the length of the second support rod 32 , the vertical guide rail 17 and the deflection measuring scale 5 are mounted on the first support rod 31 , and two bearings are mounted on the first support rod 31 7. The support frame 1 is correspondingly provided with two transverse guide rails 6 to ensure the stability of the movement of the moving frame.

The deflection measurement assembly includes a deflection indicator 4 slidably arranged on the first support rod 31 or the second support rod 32 and a corresponding deflection measurement scale 5 . The deflection measuring scale 5 is provided with a scale, through which the deflection measuring scale 5 can obtain the distance the deflection indicator 4 has moved, which is the deflection value. As shown in Fig. 3, in Fig. 3, the initial position of the deflection indicator 4 is indicated by a solid line, and the position of the deflection indicator 4 after movement is indicated by a dotted line; the position of the electroscope 19 in an ideal state is indicated by a solid line, and the actual situation is indicated by a solid line. The position of the lower electroscope 19 is indicated by a dotted line, the two horizontal lines corresponding to the deflection indicator 4 are laser indicating lines, and the distance between the two laser indicating lines is the deflection.

Deflection refers to the linear displacement of the rod axis in the direction perpendicular to the axis or the linear displacement of the midplane of the plate and shell in the direction perpendicular to the midplane when subjected to force or non-uniform temperature changes.

In this embodiment, the deflection indicator 4 is a laser pointer, which can print a laser indicator line of a certain width. The head of the electroscope 19 can be obtained by corresponding the laser to the head of the electroscope 19 and then using the deflection measuring scale 5 How much the sinking distance, can get the size of the deflection.

In this embodiment, the front supporting member 14 and the rear supporting member 12 are arranged in an arc shape, the arc-shaped opening of the front supporting member 14 is upward, and the arc-shaped opening of the rear supporting member 12 is downward. The arc-shaped setting can better match with the electroscope 19 to ensure that the electroscope 19 will not move at will.

The front support 14 is fixed and located below the electroscope 19, the rear support 12 can move and is located above the electroscope 19, a space for fixing the handle of the electroscope 19 is formed between the front support 14 and the rear support 12, and The vertical plane where the front support 14 and the rear support 12 are located is parallel to the moving direction of the moving frame. The gripping force is measured by the gripping force measuring component, and the deflection is measured by the deflection measuring component. The measuring device is easy to use and can be applied For electroscopes 19 of different specifications, instead of manual measurement, the measurement results are more accurate.

In this embodiment, a distance scale 8 is provided on the worktable 2 , and a distance indicator 9 is provided on the horizontal bar 33 corresponding to the distance scale 8 . There is a scale on the distance scale 8, the distance indicator 9 is arranged just above the distance scale 8, and the distance indicator 9 is a laser pointer, which can emit a point laser or a laser indicating line with a certain width, through the distance indicator 9 and the laser pointer. The distance scale 8 , the distance moved by the distance indicator 9 and the distance between the front support 14 and the rear support 12 can be derived.

The working process of the gripping force and deflection measuring device of the electroscope 19 of the present embodiment is briefly described below:

Turn on the power switch 16 first, the device is automatically set to zero, place the electroscope 19 on the test device and move the rear support 12 to the position specified by the standard. Rotate the adjustment handle, and adjust the upper and lower positions of the rear support 12 through the adjustment screw 10, so that the handle of the electroscope 19 is in a horizontal state. At this time, the force sensor 13 can measure the data, and by reading and recording the data of the grip force on the liquid crystal display.

Move the deflection indicator 4 to the point where the laser pointer line is parallel to the handle axis of the electroscope 19 and record the current position data; then move the deflection pointer 4 to the point where the laser pointer line is parallel to the electrode tip of the electroscope 19 and record the current position data, calculate twice The difference between the position data is the deflection value.

The main structure of the measuring device in this embodiment is made of aluminum profiles, and the bottom is equipped with casters, which can be easily moved; the holding force and deflection test can be completed by placing the electroscope 19 on it. The device is small in size and light in weight, and can be used Lithium battery power supply, can also be used normally when there is no mains power.

The measuring device in this embodiment mainly includes two sets of aluminum alloy frames, namely, a support frame 1, a moving frame, a guide rail, a bearing 7, a scale, a force sensor 13, a laser pointer, and the like. The moving frame can move in the horizontal direction, and the cross bar 33 of the moving frame is equipped with an adjusting screw 10 and an adjusting hand wheel, which can adjust the upper and lower positions of the rear support 12 to adapt to different lengths and diameters of the electroscope 19 handles. A force sensor 13 is installed under the front support 14, which can measure the holding force of the electroscope 19 in real time. One side of the moving frame is equipped with a vertical vertical guide rail 17 , and a deflection indicator 4 is installed on the vertical guide rail 17 for measuring the deflection of the electroscope 19 . When in use, first adjust the electroscope 19 handle to a horizontal position, move the deflection indicator 4 to the point where the laser pointer line is parallel to the electroscope 19 handle axis, and record the reading of the scale; then move the laser pointer to the laser pointer line and the electroscope 19 electrode. With the tips parallel, record the scale reading; the difference between the two scale readings is the deflection value. The principle of deflection measurement is shown in Figure 3.

The device for measuring the holding force and deflection of the electroscope of the utility model has the advantages of reasonable structure design, small size, light weight, convenient movement, simple use and convenient operation, improves the flexibility and accuracy of the test of the holding force and deflection of the electroscope, and improves the The degree of automation; it provides an efficient and reliable special device for the special test of the electroscope holding force and deflection.

The above-described embodiments are only for illustrating the technical concept and characteristics of the present utility model, and its purpose is to enable those who are familiar with the technology to understand the content of the present utility model and implement it accordingly, and cannot limit the scope of protection of the present utility model with this. Equivalent changes or modifications made according to the spirit and spirit of the present invention should all be included within the protection scope of the present invention.

Claims (10)

1. The utility model provides a holding power and deflection measuring device of electroscope which characterized in that: including the support frame, set up workstation, preceding support measuring mechanism and back support measuring mechanism on the support frame, preceding support measuring mechanism is including setting up holding power measuring component and preceding support piece on the workstation, back support measuring mechanism is including sliding the setting and being in moving frame on the support frame and setting are in deflection measuring component and back support piece on the moving frame.

2. The gripping force and deflection measuring device of an electroscope of claim 1, wherein: the movable frame comprises a first supporting rod and a second supporting rod which are arranged on two sides of the workbench respectively, the tops of the first supporting rod and the second supporting rod are connected through a cross rod, and a rear supporting piece is installed on the cross rod.

3. The gripping force and deflection measuring device of an electroscope according to claim 2, characterized in that: the deflection measuring assembly comprises a deflection indicator arranged on the first supporting rod or the second supporting rod in a sliding mode and a corresponding deflection measuring scale.

4. The gripping force and deflection measuring device of an electroscope according to claim 3, wherein: one of the first supporting rod and the second supporting rod is provided with a vertical guide rail, and the deflection indicator is arranged on the vertical guide rail in a sliding mode.

5. The gripping force and deflection measuring device of an electroscope according to claim 3, wherein: be provided with transverse guide on the support frame, first bracing piece and second bracing piece correspond transverse guide installs the bearing, first bracing piece and second bracing piece pass through bearing and transverse guide realize sliding.

6. The gripping force and deflection measuring device of an electroscope of claim 5, wherein: the worktable is provided with a distance scale, and the cross rod is provided with a distance indicator corresponding to the distance scale.

7. The gripping force and deflection measuring device of an electroscope of claim 5, wherein: the cross rod is provided with an adjusting component for adjusting the upper and lower positions of the rear supporting piece; the adjusting component comprises an adjusting screw rod for driving the rear supporting piece to move up and down and an adjusting hand wheel for driving the adjusting screw rod to rotate.

8. The gripping force and deflection measuring device of an electroscope of claim 1, wherein: the grip force measurement assembly includes a force sensor, and the front support is disposed above the force sensor.

9. The gripping force and deflection measuring device of an electroscope according to any one of claims 1 to 8, wherein: the front supporting piece and the rear supporting piece are arranged in an arc shape, the arc-shaped opening of the front supporting piece faces upwards, and the arc-shaped opening of the rear supporting piece faces downwards.

10. The gripping force and deflection measuring device of an electroscope according to any one of claims 1 to 8, wherein: the workbench is also provided with a control panel and a power switch.

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