CN113432539A - Laser measuring device for oil cylinder expansion amount - Google Patents
Laser measuring device for oil cylinder expansion amount Download PDFInfo
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- CN113432539A CN113432539A CN202110592441.5A CN202110592441A CN113432539A CN 113432539 A CN113432539 A CN 113432539A CN 202110592441 A CN202110592441 A CN 202110592441A CN 113432539 A CN113432539 A CN 113432539A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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Abstract
The invention discloses a laser measuring device for the stretching amount of an oil cylinder, which comprises: the fixing component is detachably arranged on the outer cylinder of the oil cylinder; the lifting mechanism is arranged on the fixed component in a position adjustable manner; the reflector is arranged at one end, facing the piston rod head of the oil cylinder, of the lifting mechanism and is used for reflecting laser; the laser test box assembly is arranged at the head of the piston rod and comprises a laser displacement sensor, and the laser displacement sensor measures the expansion amount of the oil cylinder according to laser reflected by the reflector; and the test host is connected with the laser test box assembly through a test cable and is used for supplying power to the laser displacement sensor, and acquiring, processing and displaying position signals. The invention can realize the non-contact on-line real-time acquisition and monitoring of the stretching amount of the oil cylinder, furthest reduce the influence on the surface scratch of the inner cylinder of the oil cylinder, meet the requirements of the oil cylinder on detection, test and troubleshooting work, and eliminate the product performance index deviation caused by human factors.
Description
Technical Field
The invention belongs to the technical field of detection devices, and particularly relates to a laser measuring device for the telescopic amount of an oil cylinder.
Background
The equipment attitude control is realized by adopting a hydraulic oil cylinder control technology, and the equipment attitude control device is widely used in equipment vehicles due to the characteristics of high control precision, easiness in design, maintenance, use and the like. The gliding cylinder is an actuating mechanism which controls the downward sliding and lifting functions of the cylinder by adopting a hydraulic cylinder control technology, the expansion and contraction amount of the hydraulic gliding cylinder of the vehicle is an important index for reflecting the static holding performance of the gliding cylinder, the holding performance of the gliding cylinder needs to be checked before each equipped vehicle is delivered, the requirement of loading locking and holding for a certain time is met, and the expansion and contraction amount of the gliding cylinder is kept within a certain range.
In the prior art, when a vehicle glide cylinder stretching amount test is carried out, an instrument for detecting the retention capacity of the glide cylinder is mainly used for measuring the stretching distance of an inner cylinder of the glide cylinder by sticking a steel tape on an outer cylinder barrel of the glide cylinder, reading a recorded numerical value by manual measurement, comparing the measured value at intervals of a certain time, manually calculating the stretching amount change, easily influenced by multiple factors such as product working conditions, environmental factors of a test site, personnel operation, space limitation and the like, and has limited test precision, the obtained data is not favorable for effectively analyzing the product performance, the requirement of accurate test is difficult to guarantee, particularly, the glide cylinder needs to be stretched out in different lengths under a loading state in the test process, and is kept for 1 h-2 h after being locked, so that the personnel needs to be on duty for a long time, and needs to manually track, record and compare and calculate for multiple times, and the labor intensity is high.
Disclosure of Invention
The invention aims to provide a laser measuring device for the expansion amount of an oil cylinder, and solves the problems that manual measurement in the prior art is easily influenced by multiple factors such as product working conditions, environmental factors of a test site, personnel operation, space limitation and the like, the test precision is limited, the obtained data is not beneficial to effective analysis of product performance, and the requirement for accurate test is difficult to guarantee.
In order to achieve the above object, according to one aspect of the present invention, there is provided a laser measuring apparatus for an amount of extension and retraction of a cylinder, comprising: the fixing component is detachably arranged on the outer cylinder of the oil cylinder; a lifting mechanism which is arranged on the fixing component in a position adjustable mode; the reflector is arranged at one end, facing the piston rod head of the oil cylinder, of the lifting mechanism and is used for reflecting laser; the laser test box assembly is arranged at the head of the piston rod and comprises a laser displacement sensor, and the laser displacement sensor measures the expansion amount of the oil cylinder according to laser reflected by the reflector; and the test host is connected with the laser test box assembly through a test cable and is used for supplying power to the laser displacement sensor, and acquiring, processing and displaying position signals.
According to the invention, the fixing assembly comprises an upper guide plate, a lower guide plate, a locking piece and a cylinder body magnetic suction block, one side of the upper guide plate is connected with one side of the lower guide plate through the cylinder body magnetic suction block to form a U-shaped structure, the locking piece is connected with the lower guide plate through an elastic piece, guide holes for the penetrating installation of the lifting mechanism are formed in the upper guide plate and the lower guide plate, and the locking piece is matched with ratchets of the lifting mechanism to realize the position locking of the lifting mechanism.
According to the invention, one side of the cylinder magnetic suction block is matched with the outer surface of the outer cylinder in shape, and an arc-shaped bulge is arranged below the cylinder magnetic suction block.
According to the invention, the laser test box assembly further comprises a laser test box shell and a piston rod magnetic absorption block, the laser displacement sensor is arranged in the laser test box shell, and the piston rod magnetic absorption block is arranged on the laser test box shell.
According to the invention, the laser measuring device for the telescopic amount of the oil cylinder further comprises a transition adapter, the piston rod magnetic suction block is adsorbed on the transition adapter, and the upper end of the transition adapter is provided with a hanging plate for hanging on the head of the planar piston rod.
According to the invention, a plurality of magnets and a plurality of silica gel pads are arranged on one side of the cylinder body magnetic suction block, one side of the piston rod magnetic suction block and one side of the transition adapter.
According to the invention, the upper surface of the side, close to the reflector, of the laser test box shell is carved with three-quarter circular arc scale lines.
According to the invention, the fixing assembly and the laser test box assembly are provided with positioning grooves, and nylon thread gluing tapes are arranged in the positioning grooves.
According to the invention, the test host comprises a notebook computer, an AC/DC power supply module, an RS485 divider and an RS 232-to-RS 485 module which are integrally packaged.
According to the invention, the laser displacement sensor and the test host machine carry out RS485 serial port communication through an RS485 separator, and position information is continuously acquired and recorded according to the set acquisition frequency; the test host stores initial position information of the oil cylinders, synchronously calculates and displays real-time change position information and expansion amount information of the difference value of the real-time change position information and the initial position information, and gives out an over-range alarm according to a preset limit range.
The invention has the advantages of
The technical scheme of the invention is particularly suitable for the environment using the high-precision laser displacement sensor to realize the non-contact online real-time acquisition and monitoring of the expansion amount of the oil cylinder, reduce the influence on the surface scratch of the inner cylinder of the oil cylinder to the maximum extent, meet the requirements of the oil cylinder on detection, test and troubleshooting work and eliminate the product performance index deviation caused by human factors.
Drawings
FIG. 1 is a schematic diagram of a laser measuring terminal according to the present invention;
FIG. 2 schematically illustrates a side view of a laser measuring terminal structure in accordance with the present invention;
FIG. 3 schematically illustrates a front view of the securing assembly of the present invention;
FIG. 4 schematically illustrates a three-dimensional view of a fixation assembly in the present invention;
FIG. 5 schematically illustrates a top view of a laser test cassette assembly of the present invention;
FIG. 6 schematically illustrates a rear view of a laser test cassette assembly of the present invention;
FIG. 7 schematically illustrates a three-dimensional view of an adapter of the present invention;
FIG. 8 is a view schematically showing the effect of the installation of the adapter in the present invention;
fig. 9 schematically shows a schematic block diagram of a laser measuring device in the present invention.
Reference numbers in the figures: 1. an outer cylinder; 2. a lifting mechanism; 3. a fixing assembly; 4. a locking member; 5. a reflector; 6. a laser test box assembly; 7. a piston rod head; 8. a nylon hook and loop fastener; 9. an upper guide plate; 10. a lower guide plate; 11. a cylinder body magnetic suction block; 12. a silica gel pad; 13. a magnet; 14. a laser displacement sensor; 15. a laser test cartridge housing; 16. a piston rod magnetic suction block; 17. a transition adapter.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be emphasized that the specific embodiments described herein are merely illustrative of the invention, are some, not all, and therefore do not limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1-9, the invention provides a laser measuring device for the telescopic amount of an oil cylinder, in particular to a laser measuring device for the telescopic amount of a slide down oil cylinder, which comprises a lifting mechanism 2, a fixing component 3, a reflector 5, a laser test box component 6 and a test host. The fixing component 3 is detachably arranged on the outer cylinder 1 of the oil cylinder; the lifting mechanism 2 is arranged on the fixed component 3 in a position adjustable manner; the reflector 5 is arranged at one end of the lifting mechanism 2, which faces to a piston rod head 7 of the oil cylinder, and is used for reflecting laser; the laser test box assembly 6 is arranged at the position of the piston rod head 7, the laser test box assembly 6 comprises a laser displacement sensor 14, and the laser displacement sensor 14 measures the stretching amount of the oil cylinder according to the laser reflected by the reflector 5; the test host is connected with the laser test box assembly 6 through a test cable and used for supplying power to the laser displacement sensor 14, and acquiring, processing and displaying position signals.
The laser measuring device for the telescopic amount of the oil cylinder comprises a laser measuring terminal, a testing cable, a testing host and the like, wherein the laser measuring terminal comprises a fixing assembly, a lifting mechanism, a reflector, a laser testing box assembly (with a laser displacement sensor arranged inside) and the like. The laser measuring terminal mainly comprises a fixing component 3 fixed on an outer cylinder 1 of the lower sliding oil cylinder, a lifting mechanism 2, a reflector 5, a laser test box component 6 fixed on a piston rod head 7 and the like, and a signal sending, feedback and receiving platform of the laser displacement sensor is formed together. The fixed component 3 is installed on the outer barrel 1, the lifting mechanism 2 is installed on the fixed component 3 and can move up and down relative to the fixed component 3, the reflector 5 is installed on one side, close to the laser test box component 6, of the lifting mechanism 2, and the laser displacement sensor 14 detects the stretching amount of the lower slide cylinder according to laser reflected by the reflector 5.
In a preferred embodiment of the present invention, the fixing assembly 3 includes an upper guide plate 9, a lower guide plate 10, a locking member 4, and a cylinder magnet 11. One side of going up baffle 9 is connected through cylinder body magnetism piece 11 and one side of lower guide 10 and is the U-shaped structure, locking piece 4 passes through the elastic component and is connected with lower guide 10, sets up the guiding hole that supplies elevating system 2 to wear to establish the installation on going up baffle 9, the lower guide 10, and locking piece 4 cooperates with elevating system 2's ratchet to realize elevating system 2's position locking. In this embodiment, the fixing assembly 3 is fixed on the outer cylinder 1 by the magnet on the cylinder magnet block 11, the upper guide plate 9 and the lower guide plate 10 are provided with guide holes, the lifting mechanism 2 is arranged in the guide holes in a penetrating way, and the locking member 4 can lock the up-and-down movement position of the lifting mechanism 2. Meanwhile, the lifting mechanism 2 is provided with a ratchet, the locking piece 4 can be arranged on the lower guide plate 10 in a swinging mode, an elastic piece is arranged between the locking piece 4 and the lower guide plate 10, the elastic piece exerts elastic acting force which is pressed on the ratchet on the locking piece 4, and the reflector 5 is arranged at the tail end of the lifting mechanism 2.
Preferably, one side of the cylinder magnetic block 11 is matched with the outer surface of the outer cylinder 1 in shape, and has a circular arc-shaped protrusion at the lower part.
According to the invention, the laser test box assembly 6 further comprises a laser test box shell 15 and a piston rod magnetic block 16, the laser displacement sensor 14 is installed in the laser test box shell 15, and the piston rod magnetic block 16 is arranged on the laser test box shell 15. Thus, the laser displacement sensor 14 can emit laser perpendicular to the reflecting surface of the reflector 5 through the magnet on the piston rod magnetic block 16 to be fixed on the piston rod head 7 in an absorbing manner.
According to the invention, the laser measuring device for the telescopic amount of the oil cylinder further comprises a transition adapter 17, the piston rod magnetic suction block 16 is adsorbed on the transition adapter 17, and the upper end of the transition adapter 17 is provided with a hanging plate for hanging on the head of the planar piston rod.
Wherein, a plurality of magnets 13 and a plurality of silica gel pads 12 are all installed to cylinder body magnetism piece 11, piston rod magnetism piece 16, one side of transition adapter 17. Preferably, the upper surface of the laser test box shell 15 on the side close to the reflector 5 is engraved with three-quarter circle arc scale lines.
And positioning grooves are formed in the fixing component 3 and the laser test box component 6, and nylon thread gluing tapes 8 are arranged in the positioning grooves. According to the service life and the working stability of the laser measuring device, the nylon fastening tape 8 can be selected to respectively reinforce and fasten the fixed component 3 and the laser test box component 6.
Preferably, the test host comprises a notebook computer, an AC/DC power supply module, an RS485 divider and an RS 232-to-RS 485 module which are integrally packaged.
According to the invention, the laser displacement sensor 14 and the test host machine carry out RS485 serial port communication through an RS485 separator, and position information is continuously acquired and recorded according to the set acquisition frequency; the test host stores initial position information of the oil cylinders, synchronously calculates and displays real-time change position information and expansion amount information of the difference value of the real-time change position information and the initial position information, and gives out an over-range alarm according to a preset limit range.
As shown in fig. 1-2, the fixing component 3 is clamped and adsorbed on the outer cylinder 1 of the lower slide cylinder, and the reflector 5 is screwed on the threaded end of the lifting mechanism 2. The lifting mechanism 2 penetrates through a guide hole in the middle of the fixing component 3 and is clamped in the guide hole through a locking piece 4. The laser test box assembly 6 is hung and adsorbed on the piston rod head 7, a laser displacement sensor 14 is fixed in the laser test box assembly 6, laser emitted by the laser displacement sensor 14 returns reflected light to the laser displacement sensor 14 for measurement through a lifting mechanism 2 and a reflector 5 which are fixed on a fixing assembly 3 of the outer cylinder of the lower sliding cylinder, and the fixing assembly 3 is adjusted to enable light beams emitted by the laser displacement sensor 14 to be perpendicular to the reflector 5 as much as possible. When the telescopic amount of the lower sliding oil cylinder changes, the laser test box assembly 6 adsorbed on the piston rod head moves up and down along with the piston rod, and the distance measured by the laser displacement sensor changes, so that the variable quantity of the measured distance data is obtained. The laser displacement sensor 14 is connected with the test host through an electric connector and a test cable on the laser test box assembly 6.
As shown in fig. 3-4, the fixing assembly 3 includes an upper guide plate 9, a lower guide plate 10, a locking member 4 and a cylinder magnetic block 11, wherein one side of the cylinder magnetic block 11 is matched with the shape of the outer peripheral wall of the outer cylinder 1 of the lower slide cylinder to ensure effective adhesion with the outer wall of the lower slide cylinder, and an arc-shaped protrusion with a thickness of 2mm is arranged below the cylinder magnetic block to ensure effective clamping with the edge of the outer cylinder of the lower slide cylinder. The cylinder body magnetic block 11 is uniformly provided with a strong magnet 13 and a silica gel pad 12, so that good fit with the cylinder body of the sliding oil cylinder is guaranteed, and breaking can be guaranteed under the condition of applying a certain force. The upper guide plate 9 and the lower guide plate 10 are provided with coaxial guide holes to ensure the vertical installation of the lifting mechanism 2. An elastic part is arranged between the lower guide plate 10 and the locking part 4, the elastic part applies pressure to the locking part 4, and the lifting mechanism 2 penetrates through a guide hole in the middle of the fixing component 3 and is clamped in the guide hole through the locking part 4. Locking piece 4 can block into the ratchet that is located elevating system 2 under the effect of elastic component, forms the tight effect in top to the ratchet, avoids elevating system 2 gliding, has guaranteed the positional stability of elevating system 2 in fixed subassembly 3. When the up-down position of the lifting mechanism 2 needs to be adjusted, the locking piece 4 can be pulled, the ratchet is loosened, the lifting mechanism 2 is unlocked, and the up-down position of the lifting mechanism 2 can be conveniently adjusted to a proper position at the moment.
As shown in fig. 5-6, the laser test box assembly 6 is composed of a laser displacement sensor 14, a laser test box housing 15, a piston rod magnetic attraction block 16, and the like, wherein one side of the piston rod magnetic attraction block 16 is matched with the outer peripheral wall of the piston rod head to ensure effective attachment with the piston rod head, and an arc-shaped bulge with a thickness of 2mm is arranged above the piston rod head to ensure effective clamping at the edge of the piston rod head. The piston rod magnetic block 16 is uniformly provided with the magnet 13 and the silica gel pad 12, so that not only is good fit with the piston rod head ensured, but also breaking can be ensured under the condition of applying a certain force. One side that laser test box casing and reflector are close, three-quarter circular arc scale mark is carved out to the upper surface, conveniently observes and carries out position adjustment.
As shown in fig. 1-2, in order to prevent abnormal situations, for example, when the measured ram is retracted, the laser measuring device is still in a test state, so as to press the lifting mechanism 2 and the reflector 5, which may damage or damage the measured hydraulic component, the present invention designs the ratchet of the lifting mechanism 2 as a helical tooth, and when the reflector 5 is pushed by an upward external force, the lifting mechanism 2 can move upward in one direction. Simultaneously, in order to prevent to lean on magnet suction for a long time, fixed subassembly 3 can remove and unusual external force collision leads to fixed subassembly 3 and the aversion of laser test box subassembly 6, has designed nylon thread gluing area 8, can carry out the ligature as required to strengthen fixed effect. In addition, positioning grooves are designed on the fixing component 3 and the laser test box component 6, so that the nylon fastening tape 8 can be effectively clamped and does not slip.
Considering that the shapes of the piston rod heads 7 of the slide cylinders of different vehicle types are different, as shown in fig. 7-8, a transition adapter 17 is installed on a laser test box assembly to meet the butt joint requirement of the plane piston rod heads and meet the application of equipment of a certain model, and one side of the transition adapter 17 is attracted to a piston rod magnetic suction block 16 of the laser test box assembly 6. The upper end of the transition adapter 17 is provided with a hanging plate to ensure that the adapter 17 and the laser test box assembly 6 are hung and attached at the plane piston rod head 7. And the other side of the transition adapter 17 is uniformly provided with a silica gel pad 12 and a magnet 13, so that the piston rod head is well attached, and the piston rod head can be separated under the condition of applying a certain force.
As shown in fig. 9, the test host includes a notebook computer, an AC/DC power module, an RS485 splitter, an RS 232-to-RS 485 module, and the like, which are integrally packaged, and is connected to the laser test box assembly through a test cable, so as to implement power supply of each laser displacement sensor, and acquisition, processing, and display of position signals.
When the device is used for measuring the telescopic amount of the glide cylinder, the device bracket of the equipment vehicle is ensured to be in a vertical state, and the glide cylinder is in a hovering state of gliding or lifting for a certain distance.
The following description will be made of a measurement process using a laser measuring device according to the present invention:
firstly, the fixed component 3 is attracted with the outer cylinder 1 of the lower slide oil cylinder to ensure that the limiting plane is effectively attached to the cylinder body, the reflector 5 is arranged on the lifting mechanism 2, and then the lifting mechanism 2 and the reflector 5 are inserted into the guide hole of the fixed component 3. Then, hang dress with laser test box subassembly 6 again and adsorb in piston rod head 7 department, ensure that the spacing plane of laser test box subassembly 6 and piston rod head are good to be laminated. Then, the circumferential position of the fixing component 3 is adjusted, and the center of the lifting mechanism is positioned in the semi-arc scale mark on the upper surface of the laser test box component 6 as much as possible, so that the light emitted by the laser displacement sensor can be effectively irradiated on the reflector 5.
During the test, stir locking piece 4 left, remove elevating system 2 downwards, make reflector 5 reach laser test box subassembly 6, then loosen locking piece 4, upwards promote the distance of 10 skewed teeth of elevating system, reach the position of test, at this moment laser test box subassembly is about 200mm apart from the distance of reflector, can effectively guarantee that the test range satisfies the demands, ensures that reflector 5 is effective to laser displacement sensor's measuring distance. In addition, the fixing component 3 and the cylinder body can be firmly tied by the nylon fastening tape 8 according to needs, and the laser test box component 6 and the piston rod head can be firmly tied by the nylon fastening tape 8.
After the laser measuring terminals on the sliding cylinders are installed and adjusted, the test host and the test cables of the laser measuring terminals are installed, good connection is guaranteed, the test host and the laser displacement sensors are powered on, the laser displacement sensors and the test host are in RS485 serial port communication through RS485 separators, position information is collected and recorded continuously according to the set collection frequency, the test host stores the initial position information of the sliding cylinders, and also synchronously calculates and displays real-time change position information (the position change of the set collection interval) and the expansion amount information of the difference value between the real-time change position information and the initial position. And (4) performing out-of-range alarm according to a preset limit range, and if the change position exceeds the set range, displaying 'position alarm' on the software interface of the test host corresponding to the position of the slide oil cylinder.
Due to the adoption of the technical scheme, the invention is particularly suitable for the environment using the high-precision laser displacement sensor to realize the non-contact online real-time acquisition and monitoring of the expansion amount of the oil cylinder, furthest reduce the influence on the scratch of the surface of the inner cylinder of the oil cylinder, meet the requirements of the oil cylinder on detection, test and troubleshooting work and eliminate the performance index deviation of the product caused by human factors. The invention can independently carry out automatic data acquisition and timing recording functions on the conditions of the oil cylinder expansion amount, the expansion occurrence time and the like, lightens the labor intensity of personnel, and particularly carries out alarm prompt according to the set limit value when the oil cylinder is abnormally expanded and contracted, so that the personnel can pay attention and take measures in time.
The invention can monitor the stretching amount of the oil cylinder, reduce the labor intensity of personnel, improve the monitoring and detecting precision, protect the inner cylinder of the oil cylinder of the equipment vehicle from being damaged in the stretching amount test, and can realize the real-time online detection of the stretching amounts of a plurality of oil cylinders based on the accurate measurement of the laser displacement sensor, thereby effectively improving the test accuracy, reducing the influence of human factors, realizing the non-contact online monitoring and timely carrying out early warning once the change exceeds the range.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a laser measuring device of hydro-cylinder flexible volume which characterized in that includes:
the fixing component (3) is detachably arranged on the outer cylinder (1) of the oil cylinder;
a lifting mechanism (2) which is position-adjustably mounted on the fixed component (3);
the reflector (5) is arranged at one end, facing the piston rod head (7) of the oil cylinder, of the lifting mechanism (2) and is used for reflecting laser;
the laser test box assembly (6) is arranged at the piston rod head (7), the laser test box assembly (6) comprises a laser displacement sensor (14), and the laser displacement sensor (14) measures the stretching amount of the oil cylinder according to the laser reflected by the reflector (5);
and the test host is connected with the laser test box assembly (6) through a test cable and is configured to supply power to the laser displacement sensor (14) and acquire, process and display position signals.
2. The laser measuring device according to claim 1, wherein the fixing assembly (3) comprises an upper guide plate (9), a lower guide plate (10), a locking member (4) and a cylinder magnetic attraction block (11), one side of the upper guide plate (9) is connected with one side of the lower guide plate (10) through the cylinder magnetic attraction block (11) to form a U-shaped structure, the locking member (4) is connected with the lower guide plate (10) through an elastic member, guide holes for the lifting mechanism (2) to be installed in a penetrating manner are formed in the upper guide plate (9) and the lower guide plate (10), and the locking member (4) is matched with a ratchet of the lifting mechanism (2) to achieve position locking of the lifting mechanism (2).
3. The laser measuring device according to claim 2, wherein one side of the cylinder magnetic block (11) is shaped to match the outer surface of the outer cylinder (1) and has a circular arc-shaped protrusion at the lower side.
4. The laser measuring device according to claim 2, wherein the laser test box assembly (6) further comprises a laser test box housing (15) and a piston rod magnetic attraction block (16), the laser displacement sensor (14) is installed in the laser test box housing (15), and the piston rod magnetic attraction block (16) is arranged on the laser test box housing (15).
5. The laser measuring device according to claim 4, characterized in that the laser measuring device for the oil cylinder expansion amount further comprises a transition adapter (17), the piston rod magnetic attraction block (16) is attracted on the transition adapter (17), and a hanging plate for hanging on a plane piston rod head is arranged at the upper end of the transition adapter (17).
6. The laser measuring device according to claim 5, wherein a plurality of magnets (13) and a plurality of silica gel pads (12) are mounted on one side of the cylinder body magnetic attraction block (11), the piston rod magnetic attraction block (16) and the transition adapter (17).
7. The laser measuring device according to claim 5, wherein the upper surface of the laser test box housing (15) on the side close to the reflector (5) is marked with a three-quarter circle arc scale line.
8. The laser measuring device according to claim 1, wherein the fixing assembly (3) and the laser test box assembly (6) are provided with positioning grooves, and nylon fastening tapes (8) are arranged in the positioning grooves.
9. The laser measuring device of claim 1, wherein the test host comprises an integrally packaged notebook computer, an AC/DC power supply module, an RS485 splitter, and an RS232 to RS485 module.
10. The laser measuring device according to claim 9, wherein the laser displacement sensor (14) and the test host computer perform RS485 serial port communication through an RS485 separator, and continuously acquire and record position information according to the set acquisition frequency;
the test host stores initial position information of the oil cylinders, synchronously calculates and displays real-time change position information and expansion amount information of the difference value of the real-time change position information and the initial position information, and gives out an over-range alarm according to a preset limit range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110592441.5A CN113432539A (en) | 2021-05-28 | 2021-05-28 | Laser measuring device for oil cylinder expansion amount |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110592441.5A CN113432539A (en) | 2021-05-28 | 2021-05-28 | Laser measuring device for oil cylinder expansion amount |
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| CN113432539A true CN113432539A (en) | 2021-09-24 |
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| CN202110592441.5A Withdrawn CN113432539A (en) | 2021-05-28 | 2021-05-28 | Laser measuring device for oil cylinder expansion amount |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114393599A (en) * | 2022-02-23 | 2022-04-26 | 上海方酋机器人有限公司 | Sampling manipulator and sampling robot suitable for robot |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011765A (en) * | 2010-12-24 | 2011-04-13 | 厦门大学 | Hydraulic cylinder with laser-measured piston rod stroke |
| CN102518641A (en) * | 2011-12-26 | 2012-06-27 | 邹德骏 | Multi-purpose powerful hanger |
| US20180099841A1 (en) * | 2016-10-09 | 2018-04-12 | Zhuhai Branch, Guangdong Institute of Special Equipment Inspection and Research | Device and method for detecting compression and reposition performance of hydraulic buffer for elevator |
| CN209101999U (en) * | 2018-07-16 | 2019-07-12 | 国网甘肃省电力公司电力科学研究院 | A kind of GIS device telescopic joint on-Line Monitor Device |
| CN212083670U (en) * | 2020-04-15 | 2020-12-04 | 北京华宇天翔科技发展有限公司 | Laser distance measuring device |
| CN213021450U (en) * | 2020-09-18 | 2021-04-20 | 武汉二航路桥特种工程有限责任公司 | Non-contact monitoring device for relative displacement of damper cylinder and piston rod |
-
2021
- 2021-05-28 CN CN202110592441.5A patent/CN113432539A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011765A (en) * | 2010-12-24 | 2011-04-13 | 厦门大学 | Hydraulic cylinder with laser-measured piston rod stroke |
| CN102518641A (en) * | 2011-12-26 | 2012-06-27 | 邹德骏 | Multi-purpose powerful hanger |
| US20180099841A1 (en) * | 2016-10-09 | 2018-04-12 | Zhuhai Branch, Guangdong Institute of Special Equipment Inspection and Research | Device and method for detecting compression and reposition performance of hydraulic buffer for elevator |
| CN209101999U (en) * | 2018-07-16 | 2019-07-12 | 国网甘肃省电力公司电力科学研究院 | A kind of GIS device telescopic joint on-Line Monitor Device |
| CN212083670U (en) * | 2020-04-15 | 2020-12-04 | 北京华宇天翔科技发展有限公司 | Laser distance measuring device |
| CN213021450U (en) * | 2020-09-18 | 2021-04-20 | 武汉二航路桥特种工程有限责任公司 | Non-contact monitoring device for relative displacement of damper cylinder and piston rod |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114393599A (en) * | 2022-02-23 | 2022-04-26 | 上海方酋机器人有限公司 | Sampling manipulator and sampling robot suitable for robot |
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Application publication date: 20210924 |