CN107165888A - A kind of hydraulic cylinder modular construction with displacement transducer - Google Patents
A kind of hydraulic cylinder modular construction with displacement transducer Download PDFInfo
- Publication number
- CN107165888A CN107165888A CN201710551943.7A CN201710551943A CN107165888A CN 107165888 A CN107165888 A CN 107165888A CN 201710551943 A CN201710551943 A CN 201710551943A CN 107165888 A CN107165888 A CN 107165888A
- Authority
- CN
- China
- Prior art keywords
- piston
- left end
- counterbore
- hydraulic cylinder
- transition block
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
Abstract
The present invention announces a kind of hydraulic cylinder modular construction with displacement transducer, belongs to hydraulic cylinder technical field.Including cylinder body, piston rod, piston and sensor；The piston right-hand member is provided with counterbore, and the piston rod left end coordinates in insertion piston right-hand member counterbore；The bolt of connection piston and piston rod is installed in piston left end；The piston left end is provided with deep gouge, and piston left end deep gouge bottom is provided with counterbore；Transition block detachably is installed in piston left end counterbore；The radially installed hole communicated is provided with the transition block, piston and piston rod；The positioning magnetic patch coordinated with sensor is provided with by screw in the transition block outer face.The use of transition block allows the structure design of piston, piston rod not limited by sensor producer installation dimension, so as to reach the reasonable and interchangeability of structure design, reach more reasonable, reliable, the efficiency and yields of raising Product processing in terms of modularized design, processing technology.
Description
Technical field
The present invention relates to hydraulic cylinder technical field, specifically a kind of hydraulic cylinder modular construction with displacement transducer.
Background technology
Hydraulic cylinder is as the executive component of hydraulic system, and it has drive mechanism simple, the features such as can transmitting high-power work(,
Using relatively broad in engineering machinery.Increasing hydraulic cylinder is equipped with inbuilt displacement sensor at present, the thing of hydraulic cylinder
Reason amount displacement is converted into the numerical value that can be checked at any time.
As shown in figure 1, a kind of hydraulic cylinder structure of the conventional outfit inbuilt displacement sensor of prior art, built-in to meet
The installation requirement of displacement transducer, need to process 4 × M4-6H screwed hole in piston rod end face.Piston rod is 42CrMo materials, and
And pass through modifier treatment and Quenching Treatment, material excessive high hardness；Because piston pole length is long, at present can only manually tapping,
Processing difficulties, cycle are long, and screwed hole reference circle scale error is big, poor controllability, and processing efficiency is low, qualification rate is low, drill bit screw tap
Wear rate is high, often has the generation of defective work, so as to cause scrapping for whole piston rod, early stage process need to be re-worked；
The installation dimension of other different sensors producer is different, causes piston rod design to meet interchangeability, it is necessary to redesign, after
The product of corresponding sensor producer can only be selected by being limited when phase replacing, maintenance sensor by installation dimension, thus
It can be restricted by delivery date.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of hydraulic cylinder modular construction with displacement transducer.This hair
The bright reasonable and interchangeability that ensure that piston rod construction design, processing technology is more rationally reliable, it is possible to increase the matter of product
Amount and efficiency so that do not restricted during later maintenance by sensor producer delivery date.
The present invention is achieved through the following technical solutions：A kind of hydraulic cylinder modular construction with displacement transducer, including cylinder
Body, piston rod, piston and sensor；The piston right-hand member is provided with counterbore, and the piston rod left end coordinates insertion piston right-hand member to sink
In hole；The bolt of connection piston and piston rod is installed in piston left end；The piston left end is provided with deep gouge, piston left end deep gouge
Bottom is provided with counterbore；Transition block detachably is installed in piston left end counterbore；It is provided with the transition block, piston and piston rod
The radially installed hole communicated；The positioning magnetic patch coordinated with sensor is provided with by screw in the transition block outer face.
It is further：The piston rod left end outer circumference surface is provided with the step-like seam coordinated with piston right-hand member counterbore；
Sealing ring is installed between the piston rod left end outer circumference surface and piston right-hand member counterbore inwall.
The bolt is eye bolt.
The cap body of the bolt left end is located in piston left end deep gouge, and being higher than for bolt cap body is deep less than piston left end deep gouge
Degree.
The inwall of the piston left end deep gouge is provided with the oil-through-hole of connection outside piston side face, is provided with outside piston side face
The one circle deep gouge relative with oil-through-hole.
The piston left end counterbore inwall is provided with internal thread, and the transition block is cylindrical, and transition block outer circumference surface is provided with
With the external screw thread of piston screw-internal thread fit.
Isolation pad is fixed with outside the positioning magnetic patch.
Compared with prior art, the beneficial effects of the invention are as follows：
（1）The structure design of piston, piston rod is allowed not limited by sensor producer installation dimension by the use of transition block, from
And reach the reasonable and interchangeability of structure design, in terms of processing technology more rationally, it is reliable, improve Product processing efficiency and
Yields；
（2）It is different according to the dead band siding-to-siding block length of the sensor of different sensors producer, also can be by adjusting the length of transition block
Ensure that positioning magnetic patch is arranged in valid interval, without re-working piston rod, only need to adjust or change transition block can complete；
（3）It will not be limited by installation dimension and dead band siding-to-siding block length when later stage replacing, maintenance sensor and select corresponding
Sensor producer product, will not thus be restricted at delivery date by producer.
Brief description of the drawings
Fig. 1 is a kind of hydraulic cylinder structure of the conventional outfit inbuilt displacement sensor of prior art；
Fig. 2 is schematic structural view of the invention.
In figure：1st, screw；2nd, isolation pad；3rd, magnetic patch is positioned；4th, transition block；5th, piston；6th, bolt；7th, piston rod.
Embodiment
The following is the specific embodiment of the present invention, in conjunction with accompanying drawing, the present invention will be further described.
As shown in Fig. 2 a kind of hydraulic cylinder modular construction with displacement transducer, including cylinder body, piston rod 7, the and of piston 5
Sensor.
Piston 5 is in cylinder, and the right-hand member of piston 5 is provided with counterbore, and the left end outer circumference surface of piston rod 7 is provided with heavy with the right-hand member of piston 5
The step-like seam that hole coordinates；The left end of piston rod 7 coordinate insertion the right-hand member counterbore of piston 5 in, the left end outer circumference surface of piston rod 7 with
Sealing ring is installed between the right-hand member counterbore inwall of piston 5.The left end of piston 5 is provided with deep gouge, and connection piston is provided with the left end of piston 5
5 with the bolt 6 of piston rod 7；Piston 5 and with bolt 6 be coupled fix, connected using opposite thread, this structure processing, installation side
Just.Bolt 6 is eye bolt, and the cap body of the left end of bolt 6 is located in the left end deep gouge of piston 5, and being higher than for the cap body of bolt 6 is less than piston
5 left end deep gouge depth.The inwall of the left end deep gouge of piston 5 is provided with the oil-through-hole of the connection outer circumference surface of piston 5, in the excircle of piston 5
Face is provided with the circle deep gouge relative with oil-through-hole.
The left end deep gouge bottom of piston 5 is provided with counterbore；Transition block 4 detachably is installed in the left end counterbore of piston 5, is specifically：
The left end counterbore inwall of piston 5 is provided with internal thread, and transition block 4 is cylindrical, and the outer circumference surface of transition block 4 is provided with and the internal thread of piston 5
The external screw thread of cooperation.The radially installed hole communicated is provided with transition block 4, piston 5 and piston rod 7.The outer face of transition block 4 passes through
Screw 1 is provided with the positioning magnetic patch 3 and isolation pad 2 coordinated with sensor.Transition block 4 and piston 5 are split-type design, screw
1 threaded mounting hole is opened in transition block 4, facilitates later maintenance.
Claims (7)
1. a kind of hydraulic cylinder modular construction with displacement transducer, including cylinder body, piston rod（7）, piston（5）And sensor；
It is characterized in that：
The piston（5）Right-hand member is provided with counterbore, the piston rod（7）Left end coordinates insertion piston（5）In right-hand member counterbore；In piston
（5）Left end is provided with connection piston（5）With piston rod（7）Bolt（6）；
The piston（5）Left end is provided with deep gouge, piston（5）Left end deep gouge bottom is provided with counterbore；Piston（5）It is removable in left end counterbore
Unload and transition block is installed（4）；In the transition block（4）, piston（5）And piston rod（7）On be provided with the radially installed hole communicated；
In the transition block（4）Outer face passes through screw（1）The positioning magnetic patch coordinated with sensor is installed（3）.
2. a kind of hydraulic cylinder modular construction with displacement transducer according to claim 1, it is characterised in that：The work
Stopper rod（7）Left end outer circumference surface is provided with and piston（5）The step-like seam that right-hand member counterbore coordinates；In the piston rod（7）Left end
Outer circumference surface and piston（5）Sealing ring is installed between right-hand member counterbore inwall.
3. a kind of hydraulic cylinder modular construction with displacement transducer according to claim 1, it is characterised in that：The spiral shell
Bolt（6）For eye bolt.
4. a kind of hydraulic cylinder modular construction with displacement transducer according to claim 1, it is characterised in that：The spiral shell
Bolt（6）The cap body of left end is located at piston（5）In left end deep gouge, bolt（6）Being higher than for cap body is less than piston（5）Left end deep gouge is deep
Degree.
5. a kind of hydraulic cylinder modular construction with displacement transducer according to claim 1, it is characterised in that：The work
Plug（5）The inwall of left end deep gouge is provided with connection piston（5）The oil-through-hole of outer circumference surface, in piston（5）Outer circumference surface is provided with a circle
The deep gouge relative with oil-through-hole.
6. a kind of hydraulic cylinder modular construction with displacement transducer according to claim 1, it is characterised in that：The work
Plug（5）Left end counterbore inwall is provided with internal thread, the transition block（4）It is cylindrical, transition block（4）Outer circumference surface is provided with and piston
（5）The external screw thread of screw-internal thread fit.
7. a kind of hydraulic cylinder modular construction with displacement transducer according to claim 1, it is characterised in that：It is described fixed
Position magnetic patch（3）It is fixed with isolation pad outside（2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710551943.7A CN107165888B (en) | 2017-07-07 | 2017-07-07 | A kind of hydraulic cylinder modular construction with displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710551943.7A CN107165888B (en) | 2017-07-07 | 2017-07-07 | A kind of hydraulic cylinder modular construction with displacement sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107165888A true CN107165888A (en) | 2017-09-15 |
| CN107165888B CN107165888B (en) | 2019-02-22 |
Family
ID=59823311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710551943.7A Active CN107165888B (en) | 2017-07-07 | 2017-07-07 | A kind of hydraulic cylinder modular construction with displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107165888B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925265A (en) * | 2019-12-09 | 2020-03-27 | 徐州徐工液压件有限公司 | Maximum stroke self-adjusting hydraulic cylinder |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19513967A1 (en) * | 1995-04-13 | 1996-10-17 | Kemptener Gmbh Maschf | Piston cylinder unit |
| JP2000329112A (en) * | 1999-05-19 | 2000-11-28 | Nanbu:Kk | Cylinder device having function to detect stroke end |
| CN100545466C (en) * | 2006-06-16 | 2009-09-30 | 萱场工业株式会社 | Fluid pressure cylinder unit with stroke sensor |
| CN201547058U (en) * | 2009-12-10 | 2010-08-11 | 内蒙古北方重工业集团有限公司 | Anti-twist precision displacement controlling hydraulic cylinder |
| CN101929485A (en) * | 2009-06-24 | 2010-12-29 | 兰州兰石重工新技术有限公司 | Built-in plunger-type cylinder of travel test device |
| CN101929484A (en) * | 2009-06-24 | 2010-12-29 | 兰州兰石重工新技术有限公司 | Built-in piston cylinder for stroke detecting device |
| CN201757028U (en) * | 2010-08-19 | 2011-03-09 | 江苏恒立高压油缸股份有限公司 | Variable-pulp oil cylinder for wind power system |
| CN103216484A (en) * | 2013-04-09 | 2013-07-24 | 西安交通大学 | Lower crossbeam inner piston cylinder structure with oil tank arranged on upper crossbeam hydraulic machine |
-
2017
- 2017-07-07 CN CN201710551943.7A patent/CN107165888B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19513967A1 (en) * | 1995-04-13 | 1996-10-17 | Kemptener Gmbh Maschf | Piston cylinder unit |
| JP2000329112A (en) * | 1999-05-19 | 2000-11-28 | Nanbu:Kk | Cylinder device having function to detect stroke end |
| CN100545466C (en) * | 2006-06-16 | 2009-09-30 | 萱场工业株式会社 | Fluid pressure cylinder unit with stroke sensor |
| CN101929485A (en) * | 2009-06-24 | 2010-12-29 | 兰州兰石重工新技术有限公司 | Built-in plunger-type cylinder of travel test device |
| CN101929484A (en) * | 2009-06-24 | 2010-12-29 | 兰州兰石重工新技术有限公司 | Built-in piston cylinder for stroke detecting device |
| CN201547058U (en) * | 2009-12-10 | 2010-08-11 | 内蒙古北方重工业集团有限公司 | Anti-twist precision displacement controlling hydraulic cylinder |
| CN201757028U (en) * | 2010-08-19 | 2011-03-09 | 江苏恒立高压油缸股份有限公司 | Variable-pulp oil cylinder for wind power system |
| CN103216484A (en) * | 2013-04-09 | 2013-07-24 | 西安交通大学 | Lower crossbeam inner piston cylinder structure with oil tank arranged on upper crossbeam hydraulic machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925265A (en) * | 2019-12-09 | 2020-03-27 | 徐州徐工液压件有限公司 | Maximum stroke self-adjusting hydraulic cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107165888B (en) | 2019-02-22 |
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