CN201568401U - Piston position detector of hydraulic cylinder - Google Patents
Piston position detector of hydraulic cylinder Download PDFInfo
- Publication number
- CN201568401U CN201568401U CN2009202781170U CN200920278117U CN201568401U CN 201568401 U CN201568401 U CN 201568401U CN 2009202781170 U CN2009202781170 U CN 2009202781170U CN 200920278117 U CN200920278117 U CN 200920278117U CN 201568401 U CN201568401 U CN 201568401U
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- CN
- China
- Prior art keywords
- hydraulic cylinder
- fluid power
- power cylinder
- piston position
- approach switches
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to oil exploitation equipment, in particular to a piston position detector of hydraulic cylinder. The steering device of the piston position detector of hydraulic cylinder includes two approach switches; the two approach switches are fixed at the two ends of a hydraulic cylinder; the sensing ends of the approach switches are arranged in the cavity of the hydraulic cylinder and the other end is connected with the control system of the hydraulic cylinder. The approach switches are fixed on the fixing board of the hydraulic cylinder through fixing bolts. The approach switches are high-voltage approach switches. The piston position detector of hydraulic cylinder has the beneficial effects that the approach switches are fixed at the two ends of the hydraulic cylinder; when working, the approach switches are arranged at a static position to sense the approaching of a piston. The fixed steering device overcomes the defects that the steering device in the prior art is under moving all the time under the effect of an slide bar, which influences the sensitivity of the steering device and is easily damaged.
Description
Technical field
The utility model relates to oil exploration equipment, is specifically related to fluid power cylinder piston position sniffer.
Background technique
In the waterpower automatic pressure regulating device, when the slide bar of fluid power cylinder drives reciprocating motion of the pistons, need judge the position of piston displacement, and then send the commutation instruction to control system near switch, could realize the accurate to-and-fro motion of piston.
As Fig. 1, shown in Figure 2, the reversing arrangement of existing fluid power cylinder is arranged on the intermediate portion of the connecting body of fluid power cylinder left and right sides cylinder barrel, by slide bar 3, sliding sleeve 2, slide block 6, sensing plate 5 and form near switch 4, about sliding sleeve 2 is divided into two, also fixedly connected with slide block 6 in the both sides that are located at slide block 6 respectively, sliding sleeve 2 and slide block 6 all are enclosed within on the slide bar 3, can horizontally slip along slide bar 3 under the effect of thrust, fixing sensing plate 5 on the slide block 6, sensing plate 5 moves along with the slip of slide block 6, on the cylinder barrel connecting body of the left and right sides, is provided with near switch 4, be in the side on sensing plate 5 tops near switch 4, can sense the approaching of sensing plate 5.When piston moves to certain position in the middle of the fluid power cylinder, piston is run into sliding sleeve 2, sliding sleeve 2 is pushing away slide block 6 along with piston moves together, sensing plate 5 on the slide block 6 also moves thereupon, when moving to sensing plate 5 when moving to distance of reaction near switch 4, sense sensing plate 5 near switch 4, send the commutation instruction to control system immediately, piston promptly runs back; In like manner, another piston also will promote another sliding sleeve 2 and move during reversing motion, and sensing plate 5 will be away near switch, during less than sensing plate 5, send the commutation instruction to control system near inductive switching immediately away to certain position the time.So repeat, realize commutation piston.
This shortcoming that is located at the portable reversing arrangement of fluid power cylinder central authorities is: reversing arrangement is under the promotion of sliding sleeve, be in along slide bar always and move, and sliding sleeve must be constantly and piston collisions, so not only can have influence on the susceptibility of reversing arrangement, and reversing arrangement very easily damages, and just needs repairing once in general in practice two months.
Summary of the invention
In order to solve deficiency of the prior art, the purpose of this utility model provides a kind of durable in use, non-damageable fluid power cylinder piston position sniffer.
For achieving the above object, the technical solution of the utility model is: fluid power cylinder piston position sniffer, described reversing arrangement comprises two near switch, described two two ends that are fixed on the fluid power cylinder near switch, in the described cylinder chamber that is located at the fluid power cylinder near the inductive switching end, the other end links to each other with the control system of fluid power cylinder.
Describedly be fixed on the stationary platen of fluid power cylinder by fixing bolt near switch.
Described near being provided with seal ring between switch and the stationary platen.
Described is that high pressure is near switch near switch.
Described high pressure near inductive switching near the distance less than 2 millimeters.
Compared with prior art, the beneficial effects of the utility model show as: of the present utility modelly be fixedly installed on the two ends of fluid power cylinder near switch, during work, be in the approaching of position of rest induction piston near switch.This fixedly reversing arrangement has overcome in the prior art because of reversing arrangement is in the motion under the effect of slide bar always, influences the susceptibility of reversing arrangement, and the shortcoming of damaging easily.
Description of drawings
Fig. 1 is the structural representation of existing reversing arrangement;
Fig. 2 is the partial enlarged drawing at existing reversing arrangement I place;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 is the partial enlarged drawing at the utility model II place.
1-piston among the figure, 2-sliding sleeve, 3-slide bar, 4-be near switch, the 5-sensing plate, and the 6-slide block, 7-is fixing near switch, 8-stationary platen, 9-seal ring, 10-fixing bolt.
Embodiment
Below in conjunction with accompanying drawing structure of the present utility model is described further, but not as to qualification of the present utility model.
Referring to Fig. 3, Fig. 4, reversing arrangement comprise that two are fixed on the two ends of fluid power cylinder near 7, two on switch near switch 7, are located near the inductive switching end in the cylinder chamber of fluid power cylinder, and the other end links to each other with the control system of fluid power cylinder.Be fixed on by fixing bolt 10 on the stationary platen 8 of fluid power cylinder near switch 7, near being provided with seal ring 9 between switch 7 and the stationary platen 8.Near switch 7 is that high pressure is near switch.High pressure near switch be the highi degree of accuracy sensitive detection near switch, induction near the distance less than 2 millimeters.
When piston 1 moves to distance of reaction near switch 7, when being preferably near distance, promptly sense piston 1 near switch 7 less than 2 millimeters, and sent out instruction to control system immediately, control system is sent the commutation instruction, the switch operating state, and piston 1 is reversing motion.
Claims (5)
1. fluid power cylinder piston position sniffer, described reversing arrangement comprises two near switch, it is characterized in that: described two are fixed on the two ends of fluid power cylinder near switch, and in the described cylinder chamber that is located at the fluid power cylinder near the inductive switching end, the other end links to each other with the control system of fluid power cylinder.
2. fluid power cylinder piston position sniffer according to claim 1 is characterized in that: describedly be fixed on the stationary platen of fluid power cylinder by fixing bolt near switch.
3. fluid power cylinder piston position sniffer according to claim 2 is characterized in that: described near being provided with seal ring between switch and the stationary platen.
4. according to each described fluid power cylinder piston position sniffer of claim 1-3, it is characterized in that: described is that high pressure is near switch near switch.
5. fluid power cylinder piston position sniffer according to claim 4 is characterized in that: described high pressure near inductive switching near the distance less than 2 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202781170U CN201568401U (en) | 2009-12-14 | 2009-12-14 | Piston position detector of hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202781170U CN201568401U (en) | 2009-12-14 | 2009-12-14 | Piston position detector of hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568401U true CN201568401U (en) | 2010-09-01 |
Family
ID=42660686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202781170U Expired - Fee Related CN201568401U (en) | 2009-12-14 | 2009-12-14 | Piston position detector of hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201568401U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438051A (en) * | 2013-07-31 | 2013-12-11 | 上海睿丰自动化***有限公司 | Fixing device for proximity switches of cylinder and cylinder with non-offset proximity switch |
| CN104373424A (en) * | 2014-10-24 | 2015-02-25 | 常州液压成套设备厂有限公司 | Limiting device of oil cylinder |
-
2009
- 2009-12-14 CN CN2009202781170U patent/CN201568401U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438051A (en) * | 2013-07-31 | 2013-12-11 | 上海睿丰自动化***有限公司 | Fixing device for proximity switches of cylinder and cylinder with non-offset proximity switch |
| CN103438051B (en) * | 2013-07-31 | 2016-12-07 | 上海睿丰自动化***有限公司 | A kind of cylinder with unbiased shifting proximity switch |
| CN104373424A (en) * | 2014-10-24 | 2015-02-25 | 常州液压成套设备厂有限公司 | Limiting device of oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20161214 |