CN203582298U - Anti-rotation cylinder pin travel detection device - Google Patents
Anti-rotation cylinder pin travel detection device Download PDFInfo
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- CN203582298U CN203582298U CN201320521752.3U CN201320521752U CN203582298U CN 203582298 U CN203582298 U CN 203582298U CN 201320521752 U CN201320521752 U CN 201320521752U CN 203582298 U CN203582298 U CN 203582298U
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Abstract
The utility model discloses an anti-rotation cylinder pin travel detection device for detecting the positions of cylinder pins on two sides of the head of a telescopic oil cylinder and in particular relates to the technical field of the telescopic oil cylinders of large-tonnage cranes. The anti-rotation cylinder pin travel detection device comprises a detection screw, a sensor support and a sensor, wherein the detection screw is fixed on the cylinder pin and can move along with stretching of the cylinder pin; the sensor support is fixed on the cylinder head; the sensor is fixed on the sensor support; a groove guide rail is formed in the sensor support; a detection block is mounted at the upper end of the detection screw; the upper end of the detection block is inserted into the groove guide rail. According to the anti-rotation cylinder pin travel detection device, the detection block is additionally arranged outside the detection screw and can move along with the stretching of the cylinder pin instead of doing extra movement along with the rotation of the cylinder pin; the detection area of the detection block is larger than that of the detection screw, so that the relevant detection range is wide, and detection is convenient and sensitive. The anti-rotation cylinder pin travel detection device is convenient to dismount and mount as well as maintain, and the detection precision and the reliability of a system can be improved.
Description
Technical field
The utility model relates to hoister in large tonnage telescopic oil cylinder technical field, specifically a kind of anti-rotation cylinder pin device for detecting distance of travel for detection of Gang Xiao position, telescopic oil cylinder cylinder head both sides.
Background technology
At present, hoister in large tonnage telescopic oil cylinder all adopts single-cylinder bolt structure, and this structure is compared with little tonnage rope row stretching structure: simple in structure, can freely control the flexible of every joint arm by an oil cylinder, and interlocking capability is strong, safe and reliable.In this oil cylinder working process, by cylinder pin and crane arm, fix, then the flexible drive crane arm by oil cylinder stretches out and retraction.In order to guarantee that oil cylinder energy is accurate, failure-free is fixing with separated with arm, at cylinder pin position sensor installation, by detecting the position of the detection screw connecting on cylinder pin, realize the detection of cylinder pin position, and then send signal, continue subsequent action.Conventional cylinder pin detection architecture, owing to can having axial rotation in cylinder pin motion process, drives detection screw to occur in the axial direction drift angle, thereby causes sensor to can't detect signal.Signal cannot be detected, must make host computer system cannot determine the state of the large arm plug of hoisting crane, thereby arm cannot be reclaimed and stretch out, cause serious consequence, bring potential safety hazard.
Summary of the invention
For existing practical problems in above-mentioned, the utility model provides a kind of anti-rotation cylinder pin device for detecting distance of travel.
The utility model is realized by following scheme: a kind of anti-rotation cylinder pin device for detecting distance of travel, comprises and be fixed on the detection screw moving along with the flexible of cylinder pin on cylinder pin; Be fixed on the sensor support base on cylinder head; Be fixed on the sensor on sensor support base; In described sensor support base, offer groove guide rail; Described detection screw upper end is provided with detection piece, and insert in groove guide rail described detection piece upper end.
It is further: described detection piece comprises a rectangular plate; Described rectangular plate top is fixed with square protrusion; Bottom be fixed with by two semicylinders, formed with the mating interface that detects the embedding of screw phase.
Described sensor support base comprises a bottomless box; Described casing one side two ends respectively have a tapped bore, and described sensor detects piece position by tapped bore; Described casing inwardly has the first square rail, the second groove guide rail successively the end of from, described rectangular plate coordinates with the first square rail, and described square protrusion coordinates with the second groove guide rail.
During work, cylinder pin carries out fore and aft motion under the effect of spring and oil pressure, and then drive the detection screw being fixed on cylinder pin to move, detect screw and drive again detection piece motion mounted thereto, the first square rail and the restriction of the second groove guide rail that coordinate with detection piece detect piece freedom of motion, make it keep straight-line motion, the sensor being arranged on sensor support base can reach the object of the position of detecting cylinder pin by the position of tapped bore detection piece.
Compare with original technology: the utility model increases by one and detects piece outside detecting screw, this detection piece can move with cylinder pin is flexible, but the not movement outside amount with the rotation of cylinder pin, detect piece and compare area of detection increase with detection screw, make to close detection range wider, detect convenient sensitive.This structure easy accessibility, is convenient to maintenance, can improve accuracy of detection and the reliability of system.
Accompanying drawing explanation
Fig. 1 is the utility model working state structure schematic diagram;
Fig. 2 detects block structure schematic diagram;
Fig. 3 is Fig. 2 left view;
Fig. 4 is Fig. 2 birds-eye view;
Fig. 5 is sensor support base structural representation;
Fig. 6 is Fig. 5 left view;
Fig. 7 is Fig. 5 birds-eye view.
In figure: 1, spring; 2, cylinder pin; 3, detect screw; 4, detect piece; 41, mating interface; 42, rectangular plate; 43, square protrusion; 5, sensor support base; 51, tapped bore; 52, the first square rail; 53, the second groove guide rail; 6, cylinder head; 7, sensor.
The specific embodiment
Be below a specific embodiment of the present utility model, by reference to the accompanying drawings the utility model be described further.
As shown in Figure 1, the utility model comprises the flexible and mobile detection screw 3 being fixed on cylinder pin 2 along with cylinder pin 2, is arranged on the detection piece 4 detecting on screw 3, is fixed on the sensor support base 5 on cylinder head 6 and is fixed on the sensor 7 on sensor support base 5; In sensor support base 5, offer groove guide rail; Detecting piece 4 upper ends inserts in groove guide rail.
As shown in Figure 2, Figure 3 and Figure 4, detect piece 4 and comprise a rectangular plate 42, on the top of rectangular plate 42, be fixed with square protrusion 43, bottom and be fixed with that by two semicylinders, is formed and the mating interfaces 41 3 phase embeddings of detection screw.
As shown in Fig. 5, Fig. 6 and Fig. 7, sensor support base 5 comprises a bottomless box; At casing one side two ends, respectively have a tapped bore 51, sensor 7 can detect piece 4 positions by tapped bore 51; Casing inwardly has the first square rail 52, the second groove guide rail 53 successively the end of from, described rectangular plate 42 coordinates with the first square rail 42, and described square protrusion 43 coordinates with the second groove guide rail 53.
During work, cylinder pin 2 carries out fore and aft motion under the effect of spring 1 and oil pressure, and then drive the detection screw 3 being fixed on cylinder pin 2 to move, detect screw 3 and drive again detection piece mounted thereto 4 motions, the first square rail 52 coordinating with detection piece 4 and the second groove guide rail 53 restrictions detect piece 4 freedom of motions, make it keep straight-line motion, the sensor 7 being arranged on sensor support base 5 can reach the object of the position of detecting cylinder pin 2 by the position of tapped bore 51 detection pieces 4.
Claims (3)
1. an anti-rotation cylinder pin device for detecting distance of travel, comprises and is fixed on the upper flexible and mobile detection screw (3) along with cylinder pin (2) of cylinder pin (2); Be fixed on the sensor support base (5) on cylinder head (6); Be fixed on the sensor (7) on sensor support base (5); It is characterized in that: described sensor support base offers groove guide rail in (5); Described detection screw (3) upper end is provided with detects piece (4), and insert in groove guide rail described detection piece (4) upper end.
2. a kind of anti-rotation cylinder pin device for detecting distance of travel according to claim 1, is characterized in that: described detection piece (4) comprises a rectangular plate (42); Described rectangular plate (42) top is fixed with square protrusion (43); Bottom be fixed with by two semicylinders, formed with the mating interface (41) that detects screw (3) phase embedding.
3. a kind of anti-rotation cylinder pin device for detecting distance of travel according to claim 2, is characterized in that: described sensor support base (5) comprises a bottomless box; Described casing one side two ends respectively have a tapped bore (51), and described sensor (7) detects piece (4) position by tapped bore (51); Described casing inwardly has the first square rail (52), the second groove guide rail (53) successively the end of from, described rectangular plate (42) coordinates with the first square rail (42), and described square protrusion (43) coordinates with the second groove guide rail (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320521752.3U CN203582298U (en) | 2013-08-23 | 2013-08-23 | Anti-rotation cylinder pin travel detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320521752.3U CN203582298U (en) | 2013-08-23 | 2013-08-23 | Anti-rotation cylinder pin travel detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203582298U true CN203582298U (en) | 2014-05-07 |
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ID=50580249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320521752.3U Expired - Lifetime CN203582298U (en) | 2013-08-23 | 2013-08-23 | Anti-rotation cylinder pin travel detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203582298U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201956A (en) * | 2014-11-24 | 2015-12-30 | 徐州重型机械有限公司 | Telescopic oil cylinder pin detecting device and method |
| CN105508347A (en) * | 2015-12-31 | 2016-04-20 | 徐州重型机械有限公司 | Telescopic oil cylinder pin detection device |
| CN107152905A (en) * | 2016-03-04 | 2017-09-12 | 丰田自动车株式会社 | The method that lifting capacity to valve is detected |
-
2013
- 2013-08-23 CN CN201320521752.3U patent/CN203582298U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201956A (en) * | 2014-11-24 | 2015-12-30 | 徐州重型机械有限公司 | Telescopic oil cylinder pin detecting device and method |
| CN105508347A (en) * | 2015-12-31 | 2016-04-20 | 徐州重型机械有限公司 | Telescopic oil cylinder pin detection device |
| CN107152905A (en) * | 2016-03-04 | 2017-09-12 | 丰田自动车株式会社 | The method that lifting capacity to valve is detected |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |