CN107165888B - A kind of hydraulic cylinder modular construction with displacement sensor - Google Patents
A kind of hydraulic cylinder modular construction with displacement sensor Download PDFInfo
- Publication number
- CN107165888B CN107165888B CN201710551943.7A CN201710551943A CN107165888B CN 107165888 B CN107165888 B CN 107165888B CN 201710551943 A CN201710551943 A CN 201710551943A CN 107165888 B CN107165888 B CN 107165888B
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- CN
- China
- Prior art keywords
- piston
- left end
- counterbore
- hydraulic cylinder
- transition block
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- 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.)
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Classifications
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- 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 sensor, belongs to hydraulic cylinder technical field.Including cylinder body, piston rod, piston and sensor；The piston right end is provided with counterbore, and the piston rod left end cooperation is inserted into piston right end 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 is detachably installed in the counterbore of piston left end；The radially installed hole communicated is provided on the transition block, piston and piston rod；The positioning magnetic patch cooperated with sensor is equipped with by screw in the transition block outer end face.The use of transition block allows the structure design of piston, piston rod not limited by sensor producer installation dimension, to reach the reasonable and interchangeability of structure design, reach modularized design, more reasonable, reliable, the efficiency and yields of raising product processing in terms of processing technology.
Description
Technical field
The present invention relates to hydraulic cylinder technical field, specifically a kind of hydraulic cylinder modular construction with displacement sensor.
Background technique
Executive component of the hydraulic cylinder as hydraulic system, can transmit high-power function the features such as simple with drive mechanism,
Using relatively broad in engineering machinery.More and more hydraulic cylinders are equipped with inbuilt displacement sensor at present, the object of hydraulic cylinder
The displacement of reason amount is converted into the numerical value that can be checked at any time.
As shown in Figure 1, a kind of common hydraulic cylinder structure for being equipped with inbuilt displacement sensor of the prior art, built in meeting
The installation requirement of displacement sensor, need to be in the threaded hole of 4 × M4-6H of piston rod end face processing.Piston rod is 42CrMo material, and
And pass through modifier treatment and quenching treatment, material excessive high hardness；Because piston pole length is too long, at present can only manually tapping,
Processing difficulties, period are long, and threaded 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 rejected product, and so as to cause scrapping for whole piston rod, early period, process need to be re-worked；
In addition the installation dimension of different sensors producer is different, causes piston rod design not to be able to satisfy interchangeability, needs to redesign, after
The product that can only select corresponding sensor producer is limited by installation dimension when phase replacement, maintenance sensor, thus
It will receive the restriction at delivery date.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of hydraulic cylinder modular construction with displacement sensor.This hair
The bright reasonable and interchangeability that can guarantee piston rod construction design, processing technology is more rationally reliable, can be improved the matter of product
Amount and efficiency, so that not restricted by sensor producer delivery date when later maintenance.
The invention is realized by the following technical scheme: a kind of hydraulic cylinder modular construction with displacement sensor, including cylinder
Body, piston rod, piston and sensor；The piston right end is provided with counterbore, and the piston rod left end cooperation insertion piston right end is heavy
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 is detachably installed in the counterbore of piston left end；It is provided on the transition block, piston and piston rod
The radially installed hole communicated；The positioning magnetic patch cooperated with sensor is equipped with by screw in the transition block outer end face.
It is further: piston rod left end outer circumference surface is provided with the step-like seam allowance with the cooperation of piston right end counterbore；
Sealing ring is installed between piston rod left end outer circumference surface and piston right end counterbore inner wall.
The bolt is eye bolt.
The cap body of the bolt left end is located in the deep gouge of piston left end, and being higher than for bolt cap body is deep lower than piston left end deep gouge
Degree.
The inner wall of piston left end deep gouge is provided with the oil-through-hole of connection outside piston circumferential surface, is provided in outside piston circumferential surface
The one circle deep gouge opposite with oil-through-hole.
The piston left end counterbore inner wall is provided with internal screw 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 present invention are:
(1) structure of piston, piston rod is allowed to design not by the limit of sensor producer installation dimension by the use of transition block
System in terms of processing technology more rationally, reliably, improves product processing to reach the reasonable and interchangeability of structure design
Efficiency and yields；
(2) different according to the dead zone siding-to-siding block length of the sensor of different sensors producer, it can also be by adjusting transition block
Length guarantees that positioning magnetic patch is mounted in valid interval, and without re-working piston rod, only need to adjust or replace transition block can
It completes；
(3) it not will receive the limitation of installation dimension and dead zone siding-to-siding block length when later period replacement, maintenance sensor and select phase
The product of corresponding sensor producer, not will receive the restriction at producer's delivery date thus.
Detailed description of the invention
Fig. 1 is a kind of common hydraulic cylinder structure for being equipped with inbuilt displacement sensor of the prior art；
Fig. 2 is schematic structural view of the invention.
In figure: 1, screw；2, isolation pad；3, magnetic patch is positioned；4, transition block；5, piston；6, bolt；7, piston rod.
Specific embodiment
It is a specific embodiment of the invention below, the present invention will be further described with reference to the accompanying drawings.
As shown in Fig. 2, a kind of hydraulic cylinder modular construction with displacement sensor, including cylinder body, piston rod 7,5 and of piston
Sensor.
Piston 5 is cylindrical, and 5 right end of piston is provided with counterbore, and 7 left end outer circumference surface of piston rod is provided with heavy with 5 right end of piston
The step-like seam allowance of hole cooperation；7 left end of piston rod cooperation insertion 5 right end counterbore of piston in, 7 left end outer circumference surface of piston rod with
Sealing ring is installed between 5 right end counterbore inner wall of piston.5 left end of piston is provided with deep gouge, is equipped with connection piston in 5 left end of piston
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 6 left end of bolt is located in 5 left end deep gouge of piston, and being higher than for 6 cap body of bolt is lower than piston
5 left end deep gouge depth.The inner wall of 5 left end deep gouge of piston is provided with the oil-through-hole of connection 5 outer circumference surface of piston, in 5 excircle of piston
Face is provided with the circle deep gouge opposite with oil-through-hole.
5 left end deep gouge bottom of piston is provided with counterbore；Transition block 4 is detachably installed in 5 left end counterbore of piston, specifically:
5 left end counterbore inner wall of piston is provided with internal screw thread, and transition block 4 is cylindrical, and 4 outer circumference surface of transition block is provided with and 5 internal screw thread of piston
The external screw thread of cooperation.The radially installed hole communicated is provided on transition block 4, piston 5 and piston rod 7.4 outer end face of transition block passes through
Screw 1 is equipped with positioning magnetic patch 3 and isolation pad 2 with sensor cooperation.Transition block 4 and piston 5 are split-type design, screw
1 threaded mounting hole is provided in transition block 4, facilitates later maintenance.
Claims (6)
1. a kind of hydraulic cylinder modular construction with displacement sensor, including cylinder body, piston rod (7), piston (5) and sensor；
It is characterized by:
Piston (5) right end is provided with counterbore, and piston rod (7) the left end cooperation is inserted into piston (5) right end counterbore；In piston
(5) left end is equipped with the bolt (6) of connection piston (5) and piston rod (7)；
Piston (5) left end is provided with deep gouge, and piston (5) left end deep gouge bottom is provided with counterbore；It is removable in the counterbore of piston (5) left end
It unloads and transition block (4) is installed；The radially installed hole communicated is provided on the transition block (4), piston (5) and piston rod (7)；
The positioning magnetic patch (3) cooperated with sensor is equipped with by screw (1) in the transition block (4) outer end face；
Piston (5) left end counterbore inner wall is provided with internal screw thread, and the transition block (4) is cylindrical, transition block (4) outer circumference surface
It is provided with and the external screw thread of piston (5) screw-internal thread fit.
2. a kind of hydraulic cylinder modular construction with displacement sensor according to claim 1, it is characterised in that: the work
Stopper rod (7) left end outer circumference surface is provided with the step-like seam allowance with the cooperation of piston (5) right end counterbore；In the piston rod (7) left end
Sealing ring is installed between outer circumference surface and piston (5) right end counterbore inner wall.
3. a kind of hydraulic cylinder modular construction with displacement sensor according to claim 1, it is characterised in that: the spiral shell
Bolt (6) is eye bolt.
4. a kind of hydraulic cylinder modular construction with displacement sensor according to claim 1, it is characterised in that: the spiral shell
The cap body of bolt (6) left end is located in the deep gouge of piston (5) left end, and being higher than for bolt (6) cap body is deep lower than piston (5) left end deep gouge
Degree.
5. a kind of hydraulic cylinder modular construction with displacement sensor according to claim 1, it is characterised in that: the work
The inner wall of plug (5) left end deep gouge is provided with the oil-through-hole of connection piston (5) outer circumference surface, and in piston (5), outer circumference surface is provided with a circle
The deep gouge opposite with oil-through-hole.
6. a kind of hydraulic cylinder modular construction with displacement sensor according to claim 1, it is characterised in that: described fixed
Isolation pad (2) are fixed with outside position magnetic patch (3).
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 CN107165888A (en) | 2017-09-15 |
| CN107165888B true 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) |
Families Citing this family (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 (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19513967A1 (en) * | 1995-04-13 | 1996-10-17 | Kemptener Gmbh Maschf | Piston cylinder unit |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3280345B2 (en) * | 1999-05-19 | 2002-05-13 | 株式会社南武 | Cylinder device with stroke end detection function |
-
2017
- 2017-07-07 CN CN201710551943.7A patent/CN107165888B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19513967A1 (en) * | 1995-04-13 | 1996-10-17 | Kemptener Gmbh Maschf | Piston cylinder unit |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107165888A (en) | 2017-09-15 |
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