CN110541965B - Special tool for controlling stroke of mechanical limit switch - Google Patents
Special tool for controlling stroke of mechanical limit switch Download PDFInfo
- Publication number
- CN110541965B CN110541965B CN201910917893.9A CN201910917893A CN110541965B CN 110541965 B CN110541965 B CN 110541965B CN 201910917893 A CN201910917893 A CN 201910917893A CN 110541965 B CN110541965 B CN 110541965B
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- Prior art keywords
- limit switch
- section
- rod
- special tool
- mechanical limit
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 abstract description 14
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 1
- 230000009471 action Effects 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007430 reference method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Push-Button Switches (AREA)
Abstract
The invention relates to a special tool for controlling the stroke of a mechanical limit switch, which comprises the following components: and (2) base: comprises a seat body and a guide rod arranged on the seat body, wherein the outer peripheral surface of the guide rod is provided with scales; and (3) a cross bar: including connecting portion, one end connect on connecting portion, the other end is to the pole portion that keeps away from connecting portion one side extension, set up the cover on the connecting portion and establish the hole, the horizontal pole is established the hole cover through the cover and is established on the guide bar, elastic component: the cover is established on the guide bar, and the one end of elastic component supports on the upper surface of pedestal, and the other end of elastic component supports on the lower surface of connecting portion, adjusting part: pushing the cross bar to move on the guide bar. The invention solves the problems of complex operation and accurate control stroke when the safety valve is debugged and installed with the limit switch, improves the installation efficiency, reduces the installation difficulty, improves the operability and the installation accuracy, improves the performance after installation, also provides possibility for debugging after installation, and has use or reference value on equipment in the field of non-safety valves.
Description
Technical Field
The invention relates to the field of safety valves, in particular to a special tool for controlling the stroke of a mechanical limit switch.
Background
At present, the application of mechanical limit switch on the relief valve gradually increases, and conventional mounting means is estimation stroke, manual adjustment, and is time-consuming and laborious, and installation effectiveness is not high.
Disclosure of Invention
The invention aims to provide a special tool for controlling the stroke of a mechanical limit switch, which is used for measuring the stroke of the mechanical limit switch for a safety valve, assisting in installing and debugging the limit switch, and can be used for other industrial equipment or designed by a reference method.
In order to achieve the above purpose, the invention adopts the following technical scheme:
A special tool for controlling the stroke of a mechanical limit switch, comprising:
And (2) base: the base comprises a base body and a guide rod arranged on the base body, the outer peripheral surface of the guide rod is provided with scales,
And (3) a cross bar: the cross bar comprises a connecting part and a bar part, one end of the bar part is connected with the connecting part, the other end of the bar part extends to one side far away from the connecting part, the connecting part is provided with a sleeved hole, the cross bar is sleeved on the guide bar through the sleeved hole,
Elastic piece: the elastic piece is sleeved on the guide rod, one end of the elastic piece is propped against the upper surface of the seat body, the other end of the elastic piece is propped against the lower surface of the connecting part,
And an adjusting assembly: the adjusting component pushes the cross rod to move on the guide rod.
Preferably, the adjusting assembly comprises an adjusting rod, the adjusting rod comprises a head part and a rod part connected to the head part, and threads are arranged on the outer peripheral surface of the rod part; the guide rod is provided with a hollow guide hole, the inner surface of the guide hole is provided with threads, the rod part of the adjusting rod stretches into the guide hole of the guide rod and is matched with the threads of the guide hole and the guide hole, and the lower surface of the head part is propped against the upper surface of the connecting part.
Still preferably, the adjusting assembly further comprises a sleeve, the sleeve is sleeved on the guide rod, the upper end of the sleeve abuts against the lower surface of the head, and the lower end of the sleeve abuts against the upper surface of the connecting portion.
Further preferably, the extending direction of the guide hole is identical to the extending direction of the scale.
Preferably, the rod part comprises a first section, a second section and a connecting section, one end of the first section is connected with the connecting part, one end of the connecting section is connected with the other end of the first section, and the other end of the connecting section is connected with one end of the second section.
Further preferably, the first section is parallel to the second section, the connecting section is perpendicular to the first section and the second section, and the first section is perpendicular to the connecting portion.
Preferably, the connecting part is provided with a gap part.
Preferably, the guide rod is perpendicular to the base.
Preferably, the base is provided with a connecting part for connecting with the limit switch or the limit switch bracket.
Further preferably, the connecting part is a connecting hole or a buckle.
Further preferably, the connecting hole is oblong.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages and effects:
The invention solves the problems of complex operation and accurate control stroke when the safety valve is debugged and installed with the limit switch, improves the installation efficiency, reduces the installation difficulty, improves the operability and the installation accuracy, improves the performance after installation, also provides possibility for debugging after installation, and has use or reference value on equipment in the field of non-safety valves.
Drawings
Fig. 1-1 is a perspective view of the present embodiment;
FIGS. 1-2 are schematic perspective sectional views of the present embodiment;
FIGS. 1-3 are schematic cross-sectional front views of the present embodiment;
FIGS. 1-4 are schematic side views of this embodiment;
2-1, 2-2, 2-3 and 2-4 are schematic diagrams of travel measurement of limit switches according to the embodiment;
3-1, 3-2, 3-3, 3-4, 3-5 are auxiliary installation schematic diagrams (adjustable pressing plate) of limit switches according to the embodiment;
FIGS. 4-1, 4-2, 4-3, 4-4, 4-5 are schematic diagrams of auxiliary installation of limit switches (non-adjustable pressure plates) using the present embodiment;
fig. 5-1, 5-2, 5-3, 5-4 are schematic diagrams for debugging limit switches according to the present embodiment.
Wherein: 1. a base; 10. a base; 100. a connection hole; 11. a guide rod; 110. a guide hole; 2. a cross bar; 20. a connection part; 200. a gap opening; 21. a stem portion; 210. a first section; 211. a second section; 212. a connection section; 3. an elastic member; 4. a regulating rod; 40. a head; 41. a stem portion; 5. a sleeve; 6. a limit switch; 60. a roller; 61. a limit switch bracket; 62. and (5) pressing plates.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
A special tool for controlling the stroke of a mechanical limit switch as shown in figures 1-1, 1-2, 1-3 and 1-4 mainly comprises a base 1, a cross rod 2, an elastic piece 3 and an adjusting component. The specific method is as follows:
the base 1 is fixed to a limit switch or a limit switch-bracket (a bracket for fixing the limit switch is provided when the limit switch is installed). The base 1 comprises a base body 10 and a guide rod 11 arranged on the base body 10, wherein the guide rod 11 is vertical to the base body 10. The outer circumferential surface of the guide rod 11 is provided with scales along the length direction thereof, the guide rod 11 is internally provided with a hollow guide hole 110 along the length direction thereof, and the inner surface of the guide hole 110 is provided with threads. The base 10 is provided with a connection portion for connecting with the limit switch 6 or the limit switch holder 61, and the connection portion has a connection structure such as a connection hole 100, a buckle, or a screw. Two connecting holes 100 are shown, the connecting holes 100 being oblong.
The cross rod 2 is a part for feeding back the switch stroke, contacts with the roller of the mechanical limit switch, and corresponds to the change of scales on the guide rod 11 when the roller moves up and down. The cross rod 2 comprises a connecting part 20, a rod part 21 with one end connected to the connecting part 20 and the other end extending to the side far away from the connecting part 20, a sleeve hole is formed in the connecting part 20, and the cross rod 2 is sleeved on the guide rod 11 through the sleeve hole. The rod portion 21 specifically includes a first section 210, a second section 211, and a connecting section 212, wherein one end of the first section 210 is connected to the connecting portion 20, one end of the connecting section 212 is connected to the other end of the first section 210, the other end of the connecting section 212 is connected to one end of the second section 211, the first section 210 is parallel to the second section 211, the connecting section 212 is perpendicular to the first section 210 and the second section 211, and the first section 210 is perpendicular to the connecting portion 20. The connecting portion 20 is provided with a clearance portion 200, and as many graduations as possible on the guide rod 11 are exposed.
The elastic piece 3 is in order to guarantee the reset of the cross rod 2, and under the condition that the elastic piece 3 is not arranged, the cross rod 2 cannot automatically move upwards to reset. The elastic member 3 is sleeved on the guide rod 11, one end of the elastic member 3 abuts against the upper surface of the seat body 10, and the other end of the elastic member 3 abuts against the lower surface of the connecting portion 20.
The adjusting component is used for pushing the cross rod 2 to move on the guide rod 11 and specifically comprises an adjusting rod 4 and a sleeve 5. The specific method is as follows:
The adjusting rod 4 comprises a head 40 and a rod 41 connected to the head 40, the head 40 is provided with a hexagonal spigot, threads are arranged on the outer peripheral surface of the rod 41, the rod 41 of the adjusting rod 4 stretches into the guide hole 110 of the guide rod 11 and the threads of the rod 41 and the guide hole are matched, and the lower surface of the head 40 abuts against the upper surface of the connecting part 20. The lower surface of the head 40 of the lever 4 is shown directly against the upper surface of the connecting portion 20. In this embodiment, since the adjusting rod 4 is at the top of the guide rod 11 and the cross rod 2 is at the middle of the guide rod 11, the sleeve 5 is used to transmit the force between the adjusting rod 4 and the cross rod 2. The sleeve 5 is sleeved on the guide rod 11, and the upper end of the sleeve 5 abuts against the lower surface of the head 40, and the lower end of the sleeve 5 abuts against the upper surface of the connecting portion 20.
The following describes the use of the present embodiment in detail.
(1) And (3) measuring the travel of the limit switch:
for purchased limit switches, whether the travel of the limit switch meets the requirement is generally verified, or for travel-adjustable limit switches, the travel of the limit switch needs to be adjusted to a proper distance. The specific operation is as follows:
As shown in fig. 2-1, 2-2, 2-3, 2-4: the special tool base 100 is fixed with the bottom of the limit switch 6 (through the connecting hole 100), the cross rod 2 (the second section 211) is arranged on the upper portion of the limit switch roller 60 and is reserved with a part of distance, the rotating adjusting rod 4 moves downwards to the cross rod 2 to be in contact with the limit switch roller 60, the reading 1 is recorded, the rotating adjusting rod 4 is rotated to the switching action, the reading 2 is recorded, and the difference between the reading 1 and the reading 2 is calculated, namely the switching action stroke.
(2) Auxiliary installation of limit switch:
the structure that can adjust to limit switch's clamp plate, the specific operation is:
as shown in fig. 3-1, 3-2, 3-3, 3-4, 3-5: the special tool base 100 (through the connecting hole 100) is fixed with the bottom of the limit switch 6 or the limit switch bracket 61, the cross rod 2 (the second section 211) is arranged on the upper part of the limit switch roller 60, the rotating adjusting rod 2 moves down to the switch action position, the cross rod 2 moves down by the thickness of one cross rod 2 (the second section 211) after the switch action, the switch is installed, the pressing plate 62 is placed above the cross rod 2 (the second section 211), the tool is removed, the switch is automatically reset to be in contact with the pressing plate 62, and the valve is at the action position.
For a framework with a limit switch, the pressing plate of which can not be adjusted, the specific operation is as follows:
As shown in fig. 4-1, 4-2, 4-3, 4-4, 4-5: the special tool base 100 (through the connecting hole 100) is fixed with the bottom of the limit switch 6 or the limit switch bracket 61, the cross rod 2 (the second section 211) is arranged at the lower part of the pressing plate 62, the reading and the cross rod 2 (the second section 211) are the positions of the limit switch when the limit switch acts, and the limit switch can be adjusted to the positions and then installed.
(3) Debugging of limit switch:
For debugging the mounted limit switch, the specific operation is as follows:
As shown in fig. 5-1, 5-2, 5-3, 5-4: the special tool base 100 (through the connecting hole 100) is fixed with the bottom of the limit switch 6 or the limit switch bracket 61, the cross rod 2 (the second section 211) is arranged on the upper part of the roller 60, the scale of the position is read, the cross rod 2 (the second section 211) is adjusted downwards to switch, the scale at the moment is read, the cross rod 2 (the second section 211) is adjusted upwards to the initial original position again, the action is repeated to simulate the switch movement process, the action condition of the switch is checked, and the position or the switch stroke of the pressing plate 62 is adjusted according to the situation.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (10)
1. A special tool for controlling the stroke of a mechanical limit switch is characterized in that: comprising the following steps:
And (2) base: the base comprises a base body and a guide rod arranged on the base body, the outer peripheral surface of the guide rod is provided with scales,
And (3) a cross bar: the cross bar comprises a connecting part and a bar part, one end of the bar part is connected with the connecting part, the other end of the bar part extends to one side far away from the connecting part, the connecting part is provided with a sleeved hole, the cross bar is sleeved on the guide bar through the sleeved hole,
Elastic piece: the elastic piece is sleeved on the guide rod, one end of the elastic piece is propped against the upper surface of the seat body, the other end of the elastic piece is propped against the lower surface of the connecting part,
And an adjusting assembly: the adjusting component pushes the cross rod to move on the guide rod.
2. The mechanical limit switch travel control special tool according to claim 1, wherein: the adjusting component comprises an adjusting rod, the adjusting rod comprises a head part and a rod part connected to the head part, and threads are arranged on the outer peripheral surface of the rod part; the guide rod is provided with a guide hole, the inner surface of the guide hole is provided with threads, the rod part of the adjusting rod stretches into the guide hole of the guide rod and is matched with the threads of the guide hole and the guide hole, and the lower surface of the head part is propped against the upper surface of the connecting part.
3. The mechanical limit switch travel control special tool according to claim 2, wherein: the adjusting component further comprises a sleeve, the sleeve is sleeved on the guide rod, the upper end of the sleeve abuts against the lower surface of the head, and the lower end of the sleeve abuts against the upper surface of the connecting portion.
4. The mechanical limit switch travel control special tool according to claim 2, wherein: the extending direction of the guide hole is consistent with the extending direction of the scale.
5. The mechanical limit switch travel control special tool according to claim 1, wherein: the rod part comprises a first section, a second section and a connecting section, wherein one end of the first section is connected with the connecting part, one end of the connecting section is connected with the other end of the first section, and the other end of the connecting section is connected with one end of the second section.
6. The special tool for controlling the stroke of the mechanical limit switch according to claim 5, wherein: the first section is parallel to the second section, the connecting section is perpendicular to the first section and the second section, and the first section is perpendicular to the connecting part.
7. The mechanical limit switch travel control special tool according to claim 1, wherein: the connecting part is provided with a gap part.
8. The mechanical limit switch travel control special tool according to claim 1, wherein: the guide rod is perpendicular to the base body.
9. The mechanical limit switch travel control special tool according to claim 1, wherein: the base body on be provided with the connecting portion that is used for carrying out the connection with limit switch or limit switch support.
10. The mechanical limit switch travel control special tool of claim 9, wherein: the connecting part is a connecting hole and a buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917893.9A CN110541965B (en) | 2019-09-26 | 2019-09-26 | Special tool for controlling stroke of mechanical limit switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910917893.9A CN110541965B (en) | 2019-09-26 | 2019-09-26 | Special tool for controlling stroke of mechanical limit switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110541965A CN110541965A (en) | 2019-12-06 |
| CN110541965B true CN110541965B (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910917893.9A Active CN110541965B (en) | 2019-09-26 | 2019-09-26 | Special tool for controlling stroke of mechanical limit switch |
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| CN (1) | CN110541965B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN110541965A (en) | 2019-12-06 |
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