CN205780039U - Inbuilt displacement sensor formula circuit controls derrick oil cylinder - Google Patents
Inbuilt displacement sensor formula circuit controls derrick oil cylinder Download PDFInfo
- Publication number
- CN205780039U CN205780039U CN201620644571.3U CN201620644571U CN205780039U CN 205780039 U CN205780039 U CN 205780039U CN 201620644571 U CN201620644571 U CN 201620644571U CN 205780039 U CN205780039 U CN 205780039U
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- CN
- China
- Prior art keywords
- cylinder
- piston rod
- displacement
- cylinder body
- oil
- 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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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a kind of inbuilt displacement sensor formula circuit controls derrick oil cylinder, belong to hydraulic jack field, including cylinder body, it is threadedly secured in the cylinder seat of cylinder body left end, it is welded on the cylinder of cylinder body right-hand member, the piston rod being arranged in cylinder, also includes the displacement transducer being arranged in cylinder seat, and the displacement bar on institute's displacement sensors is slidably arranged in the blind hole of piston rod through cylinder body；Also include that the control valve being welded on cylinder outer circumference face, described control valve oil pocket left with piston rod, the right oil pocket of piston rod connect.The purpose that the displacement transducer that this utility model is set up by inside and the outside control valve set up buffer in reaching oil cylinder, for buffer structure in simple mechanical formula, oil cylinder simple structure, easily to process, service life is long；Simultaneously again owing to being additionally arranged displacement transducer, control exact position when cylinder piston rod runs by electronic device, there is bigger actual application value.
Description
Technical field
This utility model relates to technical field of hydraulic oil cylinder, particularly relates to a kind of inbuilt displacement sensor formula circuit controls well
Frame oil cylinder.
Background technology
Derrick oil cylinder is a kind of special oil cylinder, and derrick oil cylinder, during rapid movement, can produce one at stroke terminal
Fixed impact, noise even mechanical collision, the most in case of high pressures, this impact becomes apparent from, serious impact
Service life of oil cylinder, thus must carry out suitable braking and buffering before terminating motion, to ensure system and oil cylinder
Service life.In general conventional way to play for time has hydraulic cylinder, buffering buffers outside hydraulic cylinder, but, outside hydraulic cylinder, buffering can increase
Add the complexity of whole hydraulic system, increase the cost of whole system.Hydraulic cylinder internal buffer device simple in construction, volume is little, no
Need the Hydraulic Elements such as any flow control valve of extra increase, thus be a kind of more satisfactory buffering method.Although interior buffering
It is the more a kind of buffering method of application, but interior buffer structure of the prior art cannot Precise Control of Oil cylinder piston when running
Position, needs to improve.
Summary of the invention
Based on described above, the purpose of this utility model is to provide the cylinder buffer mode of other structure a kind of, so that
Derrick oil cylinder is more steady during hoisting and declining, and avoids the shock of piston and base to the full extent, extends oil cylinder
Service life.
This utility model is achieved by the following technical solution:
Inbuilt displacement sensor formula circuit controls derrick oil cylinder, including cylinder body, is threadedly secured in the cylinder seat of cylinder body left end, weldering
It is connected on the cylinder of cylinder body right-hand member, the piston rod being arranged in cylinder, also include the displacement transducer being arranged in cylinder seat, institute's rheme
Displacement bar on displacement sensor is slidably arranged in the blind hole of piston rod through cylinder body；Also include being welded on cylinder outer circumference face
On control valve, described control valve oil pocket left with piston rod, the right oil pocket of piston rod connect.
Further, the fairlead being fixedly installed between cylinder and piston rod, described fairlead and cylinder institute are also included
The contact surface formed is provided with at least 1 guide ring, and the contact surface formed between described fairlead and piston rod is at least provided with 3
Individual fairlead sealing ring and at least 1 dust ring.
Further, the oscillating bearing being arranged on cylinder seat is also included.
Compared with prior art, the beneficial effects of the utility model are: the middle part of piston rod is provided with a blind hole, blind hole
In be equipped with displacement bar, displacement bar is connected with the displacement transducer one being arranged in cylinder seat, the shifting of displacement bar induction piston bar
Dynamic distance, when piston rod moves to the high-low limit position of cylinder body, displacement transducer receives signal, by being arranged on outside cylinder body
The control valve in portion, the oil circuit being connected with control valve controls the pressure reduction in chamber, piston rod left and right,
, and then farthest slow down the impact of piston rod and cylinder seat.
In sum, the displacement transducer that this utility model is set up by inside and the outside control valve set up reach oil
The purpose of buffering in cylinder, for buffer structure in simple mechanical formula, oil cylinder simple structure, easily to process, service life is long；
Simultaneously again owing to being additionally arranged displacement transducer, control exact position when cylinder piston rod runs by electronic device, have relatively
Big actual application value.
Accompanying drawing explanation
Fig. 1 is this utility model structure chart.
Wherein: 1, cylinder seat, 11, oscillating bearing, 2, displacement transducer, 3, cylinder body, 4, control valve, 4a, left oil circuit, 4b, the right side
Oil circuit, 5, cylinder, 6, fairlead, 6a, guide ring, 6b, O RunddichtringO, 6c, dust ring, 7, tie-plate, 8, piston rod, 9, position
Move bar, 10, plug cock head.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention the present invention will be further described.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain this
Utility model, is not used to limit this utility model.
As it is shown in figure 1, present embodiment discloses a kind of inbuilt displacement sensor formula circuit controls derrick oil cylinder, including cylinder body
3, it is threadedly secured in the cylinder seat 1 of cylinder body 3 left end, is welded on the cylinder (5) of cylinder body 3 right-hand member, is arranged on the piston rod in cylinder 5
8, also include the displacement transducer 2 being arranged in cylinder seat 1, the displacement bar 9 on institute's displacement sensors 2, through cylinder body 3, slides
It is arranged in the blind hole of piston rod 8；Also including the control valve 4 being welded on cylinder 5 outer circumference face, described control valve 4 is passed through
Left oil circuit 4a, right oil circuit 4b oil pocket left with piston rod, the right oil pocket of piston rod connect.
In the present embodiment, the fairlead 6 being fixedly installed between cylinder 5 and piston rod 8, described fairlead 6 are also included
The contact surface formed with cylinder 5 is provided with at least 1 guide ring 6a, and formed between described fairlead 6 and piston rod 8 connects
Contacting surface is at least provided with 3 fairlead sealing ring 6b and at least 1 dust ring 6c.
In the present embodiment, also include the oscillating bearing 11 being arranged on cylinder seat 1, for angled with working space axostylus axostyle
Connect；Also include the tie-plate 7 being arranged on piston rod 8 end, and the plug cock head 10 being arranged on cylinder body 3.
The displacement transducer that this utility model is set up by inside and the outside control valve set up buffer in reaching oil cylinder
Purpose, for buffer structure in simple mechanical formula, oil cylinder simple structure, easily process, service life is long；Simultaneously the most again by
In being additionally arranged displacement transducer, control exact position when cylinder piston rod runs by electronic device, there is bigger reality
Using value.
Above description is to explanation of the present utility model, is not to restriction of the present utility model, and this utility model is limited
Scope see claim, in the case of this utility model basic conception, this utility model can make other shape
The amendment of formula.
Claims (3)
1. inbuilt displacement sensor formula circuit controls derrick oil cylinder, including cylinder body (3), is threadedly secured in the cylinder of cylinder body (3) left end
Seat (1), is welded on the cylinder (5) of cylinder body (3) right-hand member, the piston rod (8) being arranged in cylinder (5), it is characterised in that also include
The displacement transducer (2) being arranged in cylinder seat (1), the displacement bar (9) in institute's displacement sensors (2) slides through cylinder body (3)
It is arranged in the blind hole of piston rod (8)；Also include the control valve (4) being welded on cylinder (5) outer circumference face, described control valve
(4) oil pocket left with piston rod, the right oil pocket of piston rod connect.
Inbuilt displacement sensor formula circuit controls derrick oil cylinder the most according to claim 1, it is characterised in that also include solid
Surely the fairlead (6) being arranged between cylinder (5) and piston rod (8), described fairlead (6) and contacting that cylinder (5) is formed
Face is provided with at least 1 guide ring (6a), and the contact surface formed between described fairlead (6) and piston rod (8) is at least provided with 3
Individual fairlead sealing ring (6b) and at least 1 dust ring (6c).
Inbuilt displacement sensor formula circuit controls derrick oil cylinder the most according to claim 1, it is characterised in that also include setting
Put the oscillating bearing (11) on cylinder seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620644571.3U CN205780039U (en) | 2016-06-27 | 2016-06-27 | Inbuilt displacement sensor formula circuit controls derrick oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620644571.3U CN205780039U (en) | 2016-06-27 | 2016-06-27 | Inbuilt displacement sensor formula circuit controls derrick oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780039U true CN205780039U (en) | 2016-12-07 |
Family
ID=58130884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620644571.3U Expired - Fee Related CN205780039U (en) | 2016-06-27 | 2016-06-27 | Inbuilt displacement sensor formula circuit controls derrick oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205780039U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578363A (en) * | 2018-12-14 | 2019-04-05 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of flexible fixed constraint structure of piston rod inbuilt displacement sensor |
-
2016
- 2016-06-27 CN CN201620644571.3U patent/CN205780039U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578363A (en) * | 2018-12-14 | 2019-04-05 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of flexible fixed constraint structure of piston rod inbuilt displacement sensor |
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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: 20161207 Termination date: 20200627 |