CN105092135A

CN105092135A - Pressure gauge for mine

Info

Publication number: CN105092135A
Application number: CN201510234983.XA
Authority: CN
Inventors: 施念昌
Original assignee: Shanghai Weimin Measuring Appliance Factory
Current assignee: Shanghai Weimin Measuring Appliance Factory
Priority date: 2015-05-11
Filing date: 2015-05-11
Publication date: 2015-11-25

Abstract

The invention discloses a pressure gauge for mines. The pressure gauge comprises a housing, a helix tube, a head, a head screw, a connecting rod, a movement rivet, a movement screw, a hairspring, a quick joint, an O-type ring, a gauge board, a pointer, and a limit nail. The helix tube is made from manganese copper alloy, has the spiral features, and has buffer and shock absorption effects. The head is welded through a bonding process, needs the short heating time, and provides a small heat affected zone. The hairspring is disposed inside the movement. A certain pretightening force acts on the hairspring when the hairspring is installed, and is transmitted to the movement by means of the hairspring, so steady transmission is achieved when the movement moves.

Description

A kind of mine tensimeter

Technical field

The present invention relates to a kind of tensimeter, specifically a kind of tensimeter being applicable to the pressure source measurement that mine uses.

Background technology

In the prior art, mineral pressure table operationally vibrates relatively more violent, very high to manometric technical requirement, and particularly C shape pipe ruptures often, the situations such as crackle; The welding manner simultaneously adopted at present is generally soldering and melting welding, welding production cost intensive, and pad easily cracks in dither, has influence on manometric serviceable life, and produces vibration when making the back to zero of pointer, spring.

Manage there being the C shape in prior art in tensimeter and usually adopt brass, tin-phosphor bronze, beryllium-bronze and stainless steel etc., the high temperature resistance of these materials and anti-fatigue performance are not the best, and welding performance neither be fine simultaneously.

Summary of the invention

For solving the technical matters existed in above-mentioned prior art, the object of this invention is to provide a kind of antidetonation, making zero effective, the tensimeter that welding technology is easily manufactured simultaneously.

A kind of tensimeter of the present invention, comprise housing, spiral pipe, end socket, end socket screw, connecting rod, movement rivet, movement screw, movement, hairspring, rapid-acting coupling, O type circle, table board, pointer, place restrictions on nail, described movement top is provided with movement screw, and it is connected with housing by movement screw; Rapid-acting coupling is connected with housing, and it is for connecting the connection of testee; Described spiral pipe has spiral-shaped feature, and it is connected with end socket screw by end socket, and end socket screw is connected with connecting rod, and connecting rod is connected with movement rivet, and movement rivet is connected with movement; Described hairspring is installed on movement inside, gives the pretightning force that hairspring is certain during installation, and pretightning force is delivered on movement by hairspring, when movement is moved, and energy stable drive; Described nail of placing restrictions on is installed on housing, spacing for during pointer return; Described table board is installed on housing, for showing force value; Described O type circle is installed in rapid-acting coupling; Described pointer is installed on movement.

Preferred technical scheme, the material of described spiral pipe is manganin.

Further preferred version, described end socket is pressure welding end socket, adopts bond technology welding spiral pipe and end socket screw.

By adopting such scheme, compared with prior art, tensimeter technique effect of the present invention is:

Described spiral pipe replaces original C type pipe, has spiral-shaped feature, has better intensity and fatigue properties, and the material of spiral pipe is manganin can be high temperature resistant, fatigue properties are fine, and adopt bond technology, and heating-up temperature is lower than existing heating means, heat time is short, heat-affected zone is little, simplifies welding process, substantially increases the mechanical property of welding efficiency and welding end socket, therefore manometric more have shatter-proof, resistance to elevated temperatures.

The effect of pretightning force when hairspring is installed does not produce vibration spring when making cursor backward on earth, back to zero effect is fine.

Accompanying drawing explanation

Fig. 1 is for being the manometric package assembly schematic diagram of the present invention;

Fig. 2 is the manometric plan structure schematic diagram of the present invention.

Embodiment

Below in conjunction with the embodiment shown in Fig. 1-2, the present invention is further illustrated:

As shown in one of Fig. 1 to Fig. 2: a kind of tensimeter of the present invention, comprise housing 1, spiral pipe 2, end socket 3, end socket screw 4, connecting rod 5, movement rivet 6, movement screw 7, movement 8, hairspring 9, rapid-acting coupling 10, O type circle 11, table board 12, pointer 13, place restrictions on nail 14, described movement 8 top is provided with movement screw 7, and it is connected with housing 1 by movement screw 7; Rapid-acting coupling 10 is connected with housing 1, and it is for connecting the connection of testee; Described spiral pipe 2 has spiral-shaped feature 21, has better intensity and fatigue properties, and it is connected with end socket screw 4 by end socket 3, and end socket screw 4 is connected with connecting rod 5, and connecting rod 5 is connected with movement rivet 6, and movement rivet 6 is connected with movement 8; It is inner that described hairspring 3 is installed on movement 8, and give the pretightning force that hairspring 3 is certain during installation, pretightning force is delivered on movement 8 by hairspring 3, when movement 8 is moved, and energy stable drive; Described nail 14 of placing restrictions on is installed on housing 1, spacing for during pointer return; Described table board 12 is installed on housing, for showing force value; Described O type circle 11 is installed in rapid-acting coupling 10; Described pointer 13 is installed on movement 8.

Wherein, the material of described spiral pipe 2 is manganin.

Wherein, described end socket 3 is pressure welding end socket, adopts bond technology welding spiral pipe 2 and end socket screw 4.

As shown in one of Fig. 1 to 2:

In practical work process of the present invention, first pressure source gives spiral pipe 2 pressure spiral pipe 2 is out of shape, and spiral pipe 2 is out of shape rear drivening rod 5, and connecting rod 5 drives movement 8 again, the pointer 13 be connected on movement 8 just produces rotation, and pointer 13 indicates corresponding force value at table board 12; When pressure source pressure is 0, spiral pipe 2 loses applied external force, start resilience, spiral pipe 2 drivening rod 5, connecting rod 5 drives movement 8 again, the pointer 13 be connected on movement 8 just produces revolution, meanwhile, the pretightning force when hairspring 3 being arranged on movement 8 inside is installed acts in the process simultaneously, limited non-magnetic shim 14 spacing side when making pointer 13 be turned back to the end, and not producing vibration spring, back to zero effect is fine.

In above-mentioned tensimeter work, because spiral pipe 2 has spiral characteristic shape 21, be similar to the cushioning effect of spring, its serviceable life can be extended in the environment of sharp pounding.

The foregoing is only preferred embodiment of the present invention, not in order to limit the scope of the invention, within the spirit and principles in the present invention all, any amendment done, equivalent to replace, be all included within protection scope of the present invention.

Claims

1. a mine tensimeter, it is characterized in that: it comprises housing, spiral pipe, end socket, end socket screw, connecting rod, movement rivet, movement screw, movement, hairspring, rapid-acting coupling, O type circle, table board, pointer, places restrictions on nail, described movement screw is arranged on movement top, and described movement is connected with housing by movement screw; Rapid-acting coupling is connected with housing; Described spiral pipe has spiral-shaped feature, and it is connected with end socket screw by end socket, and end socket screw is connected with connecting rod, and connecting rod is connected with movement rivet, and movement rivet is connected with movement; Described hairspring is installed on movement inside; Described nail of placing restrictions on is installed on housing; Described table board is installed on housing; Described O type circle is installed in rapid-acting coupling; Described pointer is installed on movement.

2. mine according to claim 1 tensimeter, is characterized in that: the material of spiral pipe is manganin.

3. mine according to claim 1 tensimeter, is characterized in that: end socket is pressure welding end socket, adopts bond technology to implement welding.