CN116465380A - Dual adjustment system and device of mining laser direction indicator - Google Patents
Dual adjustment system and device of mining laser direction indicator Download PDFInfo
- Publication number
- CN116465380A CN116465380A CN202310676631.4A CN202310676631A CN116465380A CN 116465380 A CN116465380 A CN 116465380A CN 202310676631 A CN202310676631 A CN 202310676631A CN 116465380 A CN116465380 A CN 116465380A
- Authority
- CN
- China
- Prior art keywords
- fixed
- detection mechanism
- sliding
- direction indicator
- information
- 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
Links
- 238000005065 mining Methods 0.000 title claims abstract description 25
- 230000009977 dual effect Effects 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 136
- 230000007246 mechanism Effects 0.000 claims abstract description 105
- 238000000034 method Methods 0.000 claims description 34
- 239000004575 stone Substances 0.000 claims description 19
- 238000013016 damping Methods 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000011895 specific detection Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 8
- 238000010276 construction Methods 0.000 description 16
- 230000001276 controlling effect Effects 0.000 description 10
- 230000033001 locomotion Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
- G01C15/004—Reference lines, planes or sectors
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
- F16M13/022—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle repositionable
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
- G01C15/008—Active optical surveying means combined with inclination sensor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention relates to the technical field of mining equipment, in particular to a dual adjusting system and device of a mining laser direction indicator, wherein the adjusting system comprises the following steps: step one, acquiring first request information, wherein the first request information is generated after vibration information is acquired by a vibration sensor; step two, generating first control information, wherein the first control information is used for controlling the starting of the detection mechanism; step three, the first control information is sent to the detection mechanism to control the detection mechanism to detect; and step four, acquiring second request information, wherein the second request information is generated by a detection mechanism after acquiring the position deviation information. The device can carry out range detection on the position offset generated by the pointing instrument body through the arrangement of the detection mechanism, thereby being beneficial to detecting different parts of the pointing instrument body and improving the detection accuracy of the detection mechanism.
Description
Technical Field
The invention relates to the field of mining equipment, in particular to a dual adjustment system and device of a mining laser direction indicator.
Background
The laser direction indicator is an instrument for indicating the construction direction of a roadway and a tunnel, which is manufactured by utilizing a laser beam direction principle, and generally needs to be used for positioning the azimuth and the gradient in the roadway driving process.
The prior art discloses the invention patent of some laser direction appearance, and the chinese patent of application number 202021625128.4 discloses a mining underground laser direction appearance of easy to assemble, including the appearance body, the upper surface fixedly connected with pillar of appearance body, the upper surface fixedly connected with revolving stage of pillar, the upper surface of revolving stage is seted up flutedly, the surface swing joint of recess has the rotatory piece, the upper surface fixedly connected with spliced pole of rotatory piece, the upper surface fixedly connected with center piece of spliced pole, the connecting hole has been seted up to one side of center piece.
During operation, in the construction process of the indicating roadway and the tunnel, the laser pointing instrument is generally hoisted at the top of the mine by using the anchor rod and the mounting bracket in the prior art, and the laser pointing instrument is adjusted to enable the laser pointing instrument to point to the vertical line used in the calibration, so that the normal operation of the construction is ensured.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a dual adjustment system and device of a mining laser direction indicator.
In a first aspect, an adjustment system for a dual adjustment device for a mining laser pointer is provided, the adjustment system comprising the steps of:
step one, acquiring first request information, wherein the first request information is generated after vibration information is acquired by a vibration sensor;
step two, generating first control information, wherein the first control information is used for controlling the starting of the detection mechanism;
step three, the first control information is sent to the detection mechanism to control the detection mechanism to detect;
step four, acquiring second request information, wherein the second request information is generated by a detection mechanism after acquiring position deviation information;
generating second control information, wherein the second control information is used for controlling the starting of the detection mechanism;
and step six, sending second control information to the detection mechanism to control the detection mechanism to send out an alarm.
The controller receives the first request information, generates first control information after receiving the first request information, controls the detection mechanism to start detection, detects the second request information generated by the detection mechanism, and generates second control information after receiving the second request information, wherein the second control information is used for controlling the detection mechanism to send out an alarm.
Preferably, the specific triggering method of the vibration sensor comprises the following steps:
step one, vibration information is obtained;
step two, generating first request information, wherein the first request information is used for requesting a controller to start a detection mechanism;
and step three, the first request information is sent to the controller.
The vibration sensor acquires the vibration information and then generates first request information, and the vibration sensor sends the first request information to the controller.
Preferably, the specific detection method of the detection mechanism comprises the following steps:
step one, acquiring first control information, and controlling a detection mechanism to start;
step two, obtaining position deviation information;
step three, the position deviation information is sent to a controller;
and step four, acquiring second control information, and controlling the detection mechanism to send out an alarm, wherein the second control information is generated after the controller receives the position deviation information.
The controller generates first control information to control the detection mechanism to start, the detection mechanism acquires the position deviation information and then sends the position deviation information to the controller, and the controller generates second control information to control the detection mechanism to send out an alarm.
The invention provides a double-adjusting device of a mining laser direction indicator, which comprises a direction indicator body, a fixed seat and two arc-shaped clamping sleeves, wherein a controller is fixedly arranged on one side wall of the fixed seat, a connecting rod is fixed at the top of the fixed seat, a shielding plate is sleeved on the outer wall of the connecting rod in a sliding manner, two vibration sensors are symmetrically fixed at the bottom of the shielding plate, a first spring is fixed between the shielding plate and the fixed seat, and the first spring is sleeved on the outer wall of the connecting rod;
connecting seats are symmetrically fixed on the side walls of two sides of the fixing seat adjacent to the controller, damping mechanisms are fixed between the shielding plate and the two connecting seats, and the damping mechanisms are used for eliminating impact force driven by stones falling in a mine roadway;
an adjusting mechanism is arranged on the side wall of one side of each of the two connecting seats and used for adjusting the distance between the two arc-shaped clamping sleeves;
the direction indicator body is arranged between the two arc-shaped clamping sleeves through a bracket, detection mechanisms are respectively arranged between the two arc-shaped clamping sleeves and the two connecting seats, and after the vibration sensor detects vibration, the detection mechanisms are used for detecting whether the position of the direction indicator body is deviated or not and carrying out auxiliary correction on the direction indicator body in the detection process;
according to the invention, through the arrangement of the detection mechanism, the detection mechanism can detect the position deviation generated by the direction indicator body in a range, so that the detection of different parts of the direction indicator body is facilitated, the detection accuracy of the detection mechanism is facilitated to be improved, and in the detection process, if the detection mechanism detects that the position of the direction indicator body deviates, the detection mechanism can synchronously correct the deviation position of the direction indicator body and send out an alarm, so that the detection of the direction indicator body by a worker is facilitated.
Preferably, the damping mechanism comprises a through groove, the through groove is formed in the top of the connecting seat, a sliding rod is fixed in the through groove, the outer wall of the sliding rod is connected with a sliding seat in a sliding mode, second springs are fixed on the side walls of two sides of the sliding seat, one ends, away from each other, of the two second springs are respectively fixed on the inner wall of the through groove, the two second springs are respectively sleeved on the outer wall of the sliding rod, the top of the sliding seat is rotationally connected with a rotating plate, and the top end of the rotating plate is rotationally connected with the bottom of the shielding plate;
according to the invention, the damping mechanism is arranged, and the elasticity of the damping mechanism is utilized to absorb and buffer external impact force, so that damage to the shielding plate caused by broken stone impact force is reduced, the pointing instrument body is protected, and the situation that the pointing instrument body is shifted in position due to vibration is reduced.
Preferably, the detection mechanism comprises a push plate, a sliding groove and a first air cylinder, the fixed part of the first air cylinder is fixed on one side wall of the fixed seat, the first air cylinder is positioned at the bottom of the connecting seat, the push plate is slidably connected to the bottom of the connecting seat, the telescopic end of the first air cylinder is fixedly connected to one side of the push plate, which is close to the fixed seat, of the push plate, a warning lamp is fixedly arranged at the center of one side, which is far away from the first air cylinder, of the push plate, a rotating seat is fixedly arranged at the center of one side, which is close to the first air cylinder, of the push plate, the sliding groove penetrates through and is arranged on one side wall of the arc-shaped clamping sleeve, and a transverse detection unit is arranged between the rotating seat and the sliding groove and used for detecting and correcting the transverse offset of the direction indicator body in a range;
the invention controls the first cylinder to start, the push plate is driven to move by the contraction movement of the first cylinder, the push plate drives the rotating seat to move, the rotating seat drives the transverse detection unit to move, the transverse detection unit firstly moves a distance towards the inside of the sliding groove, so that the transverse detection mechanism is beneficial to moving to a preset position, then the rotating seat continues to push the transverse detection unit to move, at the moment, the transverse detection unit starts to perform range detection in two opposite directions along the track of the sliding groove in the inside of the sliding groove, if the situation that the position of the pointing instrument body is offset is detected in the moving process of the transverse detection unit, the transverse detection unit can assist in performing auxiliary correction on the pointing instrument body, and the transverse detection unit can send information to the controller, and the controller controls the warning lamp to light and give an alarm, so that the worker can observe and adjust the pointing instrument body conveniently.
Preferably, the transverse detection unit comprises two elastic telescopic rods, the fixed end parts of the two elastic telescopic rods are connected with the rotating seat in a rotating mode, the telescopic ends of the two elastic telescopic rods are connected with connecting plates in a rotating mode, one sides, far away from the elastic telescopic rods, of the connecting plates are respectively fixed with a first righting block, the two first righting blocks are respectively located in the sliding groove, a connecting spring is fixed between the two first righting blocks, the two first righting blocks are respectively fixedly provided with a first pressure sensor on one side, far away from the connecting plates, of the connecting plates, and the first pressure sensor and the warning lamp are respectively electrically connected with the controller.
Preferably, two equal sliding connection in one side that the push pedal is close to each other has the slide, two the slide is crisscross to be set up, two one side that the push pedal is close to each other all is fixed with the second cylinder, two the second cylinder all with controller electric connection, two the flexible end of second cylinder respectively with two slide fixed connection, two the inclined plane has all been seted up to one side that the slide is close to each other, two all be provided with vertical detecting element on the inclined plane of inclined plane, two vertical detecting element is used for respectively right the different direction of the longitudinal offset of directional appearance body carries out the scope and detects and corrects.
Preferably, the longitudinal detection unit comprises a displacement groove and an L-shaped connecting rod, the displacement groove is formed in one side, close to each other, of the two arc-shaped clamping sleeves, one end of the L-shaped connecting rod is in sliding connection with the inclined surface, a second centralizing block is fixed on the other side of the L-shaped connecting rod, sliding columns are connected to two sides of the second centralizing block in a sliding manner, the two sliding columns are respectively in sliding connection with the two displacement grooves, a second pressure sensor is fixedly mounted on the top of the second centralizing block, and the second pressure sensor is electrically connected with the controller;
according to the invention, through the arrangement of the second pressure sensor, the second pressure sensor receives pressure information in the moving process, if the pressure information exceeds the normal pressure value range, the second pressure sensor can send the pressure information to the controller, and the controller can control the warning lamp to light and give out a warning, so that the situation that the position of the pointing instrument body is deviated due to vibration but not found in time is avoided, and the construction is accurate.
Preferably, the adjusting mechanism comprises an adjusting plate, the adjusting plate is fixed on one side wall of the connecting seat, an electric telescopic rod is fixedly connected to one side wall of the adjusting plate, and the telescopic end of the electric telescopic rod is fixed on one side wall of the arc-shaped clamping sleeve.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, through the arrangement of the detection mechanism, the detection mechanism can detect the position deviation generated by the direction indicator body in a range, so that the detection of different parts of the direction indicator body is facilitated, the detection accuracy of the detection mechanism is facilitated to be improved, and in the detection process, if the detection mechanism detects that the position of the direction indicator body deviates, the detection mechanism can synchronously correct the deviation position of the direction indicator body and send out an alarm, so that the detection of the direction indicator body by a worker is facilitated.
2. According to the invention, through the arrangement of the second pressure sensor, the second pressure sensor receives pressure information in the moving process, if the pressure information exceeds the normal pressure value range, the second pressure sensor can send the pressure information to the controller, and the controller can control the warning lamp to light and give out a warning, so that the situation that the position of the pointing instrument body is deviated due to vibration but not found in time is avoided, and the construction is accurate.
Drawings
FIG. 1 is a schematic flow chart of the method of the present invention;
FIG. 2 is a schematic view of a first overall structure of the present invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present invention;
FIG. 4 is a schematic view of a second overall structure of the present invention;
FIG. 5 is an enlarged schematic view of the structure of FIG. 4B according to the present invention;
FIG. 6 is a schematic view of the structure of the present invention with the arc-shaped clamping sleeve removed;
FIG. 7 is an enlarged schematic view of the structure of FIG. 6C in accordance with the present invention;
FIG. 8 is a schematic view of a third overall structure of the present invention;
FIG. 9 is a schematic view of the junction of the shield and the connector of the present invention;
FIG. 10 is a schematic view of the connection between the arc-shaped clamping sleeve and the shielding plate of the present invention;
FIG. 11 is an enlarged schematic view of the structure of FIG. 10D according to the present invention;
FIG. 12 is a schematic view of the construction of the junction of the push plate and the first righting block in accordance with the present invention;
FIG. 13 is a flow chart of a sensor triggering method according to the present invention;
fig. 14 is a flow chart of a detection method of a detection mechanism according to the present invention.
In the figure: 1. a pointing instrument body; 2. a fixing seat; 3. an arc-shaped clamping sleeve; 4. a controller; 5. a connecting rod; 6. a shielding plate; 7. a vibration sensor; 8. a first spring; 9. a connecting seat; 10. a through groove; 11. a slide bar; 12. a sliding seat; 13. a second spring; 14. a rotating plate; 15. a push plate; 16. a sliding groove; 17. a first cylinder; 18. a warning light; 19. a rotating seat; 20. an elastic telescopic rod; 21. a splice plate; 22. a first righting block; 23. a connecting spring; 24. a first pressure sensor; 25. a slide plate; 26. a second cylinder; 27. an inclined surface; 28. a displacement groove; 29. an L-shaped connecting rod; 30. a second righting block; 31. a second pressure sensor; 32. an adjusting plate; 33. an electric telescopic rod; 34. a sliding column.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
Example 1
An adjustment system of a dual adjustment device of a mining laser pointer as shown in fig. 1, the adjustment system comprising the steps of:
step one, acquiring first request information, wherein the first request information is generated after vibration information is acquired by a vibration sensor 7;
step two, generating first control information, wherein the first control information is used for controlling the starting of the detection mechanism;
step three, the first control information is sent to the detection mechanism to control the detection mechanism to detect;
step four, acquiring second request information, wherein the second request information is generated after the detection mechanism acquires the position deviation information;
generating second control information, wherein the second control information is used for controlling the starting of the detection mechanism;
and step six, sending second control information to the detection mechanism to control the detection mechanism to send out an alarm.
The controller 4 receives the first request information, the controller 4 generates first control information after receiving the first request information, the first control information controls the detection mechanism to start detection, the detection mechanism detects to generate second request information, the controller 4 is used for receiving the second request information, the controller 4 generates second control information after receiving the second request information, and the second control information is used for controlling the detection mechanism to send out an alarm.
The adjusting system of the double adjusting device of the mining laser direction indicator shown in fig. 13, the specific triggering method of the vibration sensor 7 comprises the following steps:
step one, vibration information is obtained;
step two, generating first request information, wherein the first request information is used for requesting the controller 4 to start a detection mechanism;
and step three, the first request information is sent to the controller 4.
Wherein, the vibration sensor 7 generates first request information after acquiring the vibration information, and the vibration sensor sends the first request information to the controller 4.
The adjustment system of the dual adjustment device of the mining laser direction indicator shown in fig. 14, the specific detection method of the detection mechanism comprises the following steps:
step one, acquiring first control information, and controlling a detection mechanism to start;
step two, obtaining position deviation information;
step three, the position deviation information is sent to the controller 4;
and step four, acquiring second control information, controlling the detection mechanism to send out an alarm, and generating the second control information after the controller 4 receives the position deviation information.
The controller 4 generates first control information to control the detection mechanism to start, the detection mechanism acquires the position deviation information and then sends the position deviation information to the controller 4, and the controller 4 generates second control information to control the detection mechanism to send out an alarm.
Example 2
The dual adjusting device of the mining laser direction indicator as shown in fig. 2 to 12 comprises a direction indicator body 1, a fixed seat 2 and two arc-shaped clamping sleeves 3, wherein a controller 4 is fixedly arranged on one side wall of the fixed seat 2, a connecting rod 5 is fixed at the top of the fixed seat 2, a shielding plate 6 is sleeved on the outer wall sliding sleeve of the connecting rod 5, two vibration sensors 7 are symmetrically fixed at the bottom of the shielding plate 6, a first spring 8 is fixed between the shielding plate 6 and the fixed seat 2, and the first spring 8 is sleeved on the outer wall of the connecting rod 5;
connecting seats 9 are symmetrically fixed on the side walls of two sides of the fixed seat 2 adjacent to the controller 4, damping mechanisms are fixed between the shielding plate 6 and the two connecting seats 9, and the damping mechanisms are used for eliminating impact force driven by stones falling in a mine roadway;
an adjusting mechanism is arranged on the side wall of one side of each connecting seat 9 and is used for adjusting the distance between the two arc-shaped clamping sleeves 3;
the direction indicator body 1 is arranged between the two arc-shaped clamping sleeves 3 through a bracket, detection mechanisms are respectively arranged between the two arc-shaped clamping sleeves 3 and the two connecting seats 9, and after the vibration sensor 7 detects vibration, the detection mechanisms are used for detecting whether the position of the direction indicator body 1 is deviated or not and carrying out auxiliary correction on the direction indicator body 1 in the detection process; during the working, in the prior art, the laser pointing instrument is hoisted at the top of a mine by matching an anchor rod with a mounting bracket in the construction process of an indication roadway and a tunnel, and the laser pointing instrument is regulated to ensure that the laser pointing instrument points to a vertical line used in the calibration, so that the normal operation of the construction is ensured, as in the construction process, broken stone can fall off in the tunnel, if broken stone collides with the laser pointing instrument, the broken stone can damage the laser pointing instrument, vibration generated by the collision can cause the pointing position of the laser pointing instrument to deviate, if serious construction errors are not found in time, the embodiment of the invention can solve the problems, in particular embodiments, after broken stone is scattered and contacted with a baffle plate 6, the impact force generated by broken stone falling can cause the baffle plate 6 to downwards compress a first spring 8 and a damping mechanism, and the spring and the damping mechanism have certain elasticity, thereby reducing the energy of external force absorbed by the broken stone by the spring and the damping mechanism, reducing the transmission of the vibration and the impact force, being beneficial to reducing the damage of the broken stone impact force to a pointing instrument body 1, but the vibration sensor body 1 can not be completely controlled by the vibration sensor 1, and the vibration sensor 1 can be completely controlled by the vibration sensor 1, and the vibration sensor is not be completely controlled by the vibration sensor 1, and the sensor is completely controlled by the vibration sensor 1 and the sensor 1, in the detection process, if the detection mechanism detects that the position of the director body 1 is deviated, the detection mechanism can synchronously correct the deviation position of the director body 1 and give out an alarm, so that the detection mechanism is favorable for reminding a worker to check the director body 1.
As one implementation mode of the invention, the damping mechanism comprises a through groove 10, the through groove 10 is arranged at the top of the connecting seat 9, a slide bar 11 is fixed in the through groove 10, the outer wall of the slide bar 11 is connected with a slide seat 12 in a sliding way, second springs 13 are fixed on the side walls of the two sides of the slide seat 12, one ends, far away from each other, of the two second springs 13 are respectively fixed on the inner wall of the through groove 10, the two second springs 13 are sleeved on the outer wall of the slide bar 11, the top of the slide seat 12 is rotationally connected with a rotating plate 14, and the top end of the rotating plate 14 is rotationally connected with the bottom of the shielding plate 6; during operation, the shielding plate 6 moves downwards to drive the rotating plate 14 to rotate, the rotating plate 14 rotates to drive the sliding seat 12 to move along the outer wall of the sliding rod 11, and the external impact force is absorbed and buffered through the arrangement of the two second springs 13 by utilizing the elasticity of the two second springs, so that damage to the shielding plate 6 caused by broken stone impact force is reduced, the direction indicator body 1 is protected, and the situation that the position of the direction indicator body 1 is deviated due to vibration is reduced.
As one embodiment of the invention, the detection mechanism comprises a push plate 15, a sliding groove 16 and a first air cylinder 17, wherein the fixed part of the first air cylinder 17 is fixed on one side wall of the fixed seat 2, the first air cylinder 17 is positioned at the bottom of the connecting seat 9, the push plate 15 is connected with the bottom of the connecting seat 9 in a sliding way, the telescopic end of the first air cylinder 17 is fixedly connected with one side of the push plate 15 close to the fixed seat 2, a warning lamp 18 is fixedly arranged at the center of one side of the push plate 15 far from the first air cylinder 17, a rotating seat 19 is fixedly arranged at the center of one side of the push plate 15 close to the first air cylinder 17, the sliding groove 16 is penetratingly arranged on one side wall of the arc-shaped clamping sleeve 3, a transverse detection unit is arranged between the rotating seat 19 and the sliding groove 16, and the transverse detection unit is used for detecting and correcting the transverse deviation of the pointing instrument body 1 in a range; when the automatic indicator is in operation, the controller 4 controls the first air cylinder 17 to start, the push plate 15 is driven to move through the contraction movement of the first air cylinder 17, the push plate 15 drives the rotary seat 19 to move, the rotary seat 19 drives the transverse detection unit to move, the transverse detection unit firstly moves a distance towards the inside of the sliding groove 16, so that the transverse detection mechanism is enabled to move to a preset position, then the rotary seat 19 continues to push the transverse detection unit to move, at the moment, the transverse detection unit starts to perform range detection in the inside of the sliding groove 16 along the track of the sliding groove 16 in two opposite directions, if the situation that the position of the indicator body 1 is offset is detected in the moving process of the transverse detection unit, the transverse detection unit can assist in correcting the indicator body 1 in the moving process, and the transverse detection unit can send the information to the controller 4, and the controller 4 controls the warning lamp 18 to light and send out an alarm, so that the indicator body 1 is enabled to be observed and adjusted by workers.
As an embodiment of the present invention, the transverse detecting unit includes two elastic telescopic rods 20, the fixed ends of the two elastic telescopic rods 20 are rotatably connected with the rotating seat 19, the telescopic ends of the two elastic telescopic rods 20 are rotatably connected with the connecting plates 21, the sides of the two connecting plates 21 away from the elastic telescopic rods 20 are respectively fixed with a first centralizing block 22, the two first centralizing blocks 22 are respectively located in the sliding groove 16, a connecting spring 23 is fixed between the two first centralizing blocks 22, the sides of the two first centralizing blocks 22 away from the connecting plates 21 are respectively fixedly provided with a first pressure sensor 24, and the first pressure sensor 24 and the warning lamp 18 are respectively electrically connected with the controller 4; when in operation, the rotating seat 19 moves to drive the two elastic telescopic rods 20 to move, the two elastic telescopic rods 20 drive the connecting plates 21 at corresponding positions to move, the two connecting plates 21 respectively drive the two first centralizing blocks 22 to move towards the inside of the sliding groove 16, the two first centralizing blocks 22 drive the two first pressure sensors 24 to move towards the inside of the sliding groove 16, the width of the two connecting plates 21 is larger than that of the sliding groove 16, so that after the two connecting plates 21 are contacted with the side wall of the sliding groove 16, the movement towards the inside of the sliding groove 16 is stopped, at the moment, the two first pressure sensors 24 move to the inner side wall of the sliding groove 16 and are attached to the pointing instrument body 1, at the moment, the two first pressure sensors 24 are in the set normal pressure range, the first pressure sensors 24 can not send information to the controller 4, the rotating seat 19 continuously drives the connecting plate 21 to move through the two elastic telescopic rods 20, then the two elastic telescopic rods 20 push the two connecting plates 21 to move towards two different directions, the two connecting plates 21 push the two first centralizing blocks 22 to move towards two different directions, so that the two first centralizing blocks 22 can drive the two first pressure sensors 24 to detect different parts of the pointing instrument body 1 in the moving process, the two first centralizing blocks 22 can assist correcting the offset of the pointing instrument body 1, if the pointing instrument body 1 has the position offset, the first pressure sensors 24 can receive pressure information in the moving process, if the pressure information exceeds the normal pressure value range, the first pressure sensors 24 can send the pressure information to the controller 4, the controller 4 can control the warning lamp 18 to light up and send out warning, thereby being beneficial to avoiding the situation that the position of the pointing instrument body 1 is deviated due to vibration but not found in time and being beneficial to the accurate construction.
As an implementation mode of the invention, two sliding plates 25 are slidably connected to one sides of the two pushing plates 15, the two sliding plates 25 are staggered, a second air cylinder 26 is fixed to one side of the two pushing plates 15, the two second air cylinders 26 are electrically connected with the controller 4, telescopic ends of the two second air cylinders 26 are fixedly connected with the two sliding plates 25 respectively, inclined surfaces 27 are formed on one sides of the two sliding plates 25, which are close to each other, longitudinal detection units are arranged on the inclined surfaces of the two inclined surfaces 27, and the two longitudinal detection units are used for detecting and correcting the range of different directions of the longitudinal offset of the direction indicator body 1 respectively; the embodiment of the invention can solve the problems that the direction of the deflection of the direction indicator body 1 cannot be predicted in the vibration process of the direction indicator body 1, if the direction indicator body 1 is only detected in the transverse range of the direction indicator body 1, the detection is inaccurate, the controller 4 firstly controls the second cylinder 26 to start, the sliding plate 25 is driven to move upwards by the contraction motion of the second cylinder 26, the sliding plate 25 drives the longitudinal detection unit to move upwards, so that the longitudinal detection unit enters a reserved space between the two arc-shaped clamping sleeves 3, the longitudinal detection unit is attached to the direction indicator body 1, the follow-up detection is facilitated, then the controller 4 starts the first cylinder 17 again, the first cylinder 17 drives the push plate 15 to move, the push plate 15 drives the sliding plate 25 to move in two different directions, the longitudinal detection unit is facilitated to detect in the longitudinal range of the direction indicator body 1, if the position of the direction indicator body 1 is detected to deflect in the process of the longitudinal detection unit, the longitudinal detection unit is driven to move in the longitudinal direction indicator body 1, the direction indicator body is also controlled to be prevented from being adjusted in the same way as the direction indicator body 1, and the direction indicator body 1 is controlled to be adjusted in the direction indicator body 4 is also facilitated.
As one embodiment of the invention, the longitudinal detection unit comprises a displacement groove 28 and an L-shaped connecting rod 29, the displacement groove 28 is arranged on one side of the two arc-shaped clamping sleeves 3, which are close to each other, one end of the L-shaped connecting rod 29 is in sliding connection with the inclined surface 27, a second centralizing block 30 is fixed on the other side of the L-shaped connecting rod 29, sliding columns 34 are connected on both sides of the second centralizing block 30 in a sliding manner, the two sliding columns 34 are respectively in sliding connection with the two displacement grooves 28, a second pressure sensor 31 is fixedly arranged on the top of the second centralizing block 30, and the second pressure sensor 31 is electrically connected with the controller 4; during operation, in the process of moving the sliding plate 25, the two L-shaped connecting rods 29 are pushed to move to two sides under the guidance of the guide surface formed on the sliding plate 25, the two L-shaped connecting rods 29 can drive the two second righting blocks 30 to move to two different directions, the two second righting blocks 30 can drive the two second pressure sensors 31 to move to two different directions, and therefore the two second righting blocks 30 can drive the two second pressure sensors 31 to detect different parts of the director body 1 during the moving process, and meanwhile, the two second righting blocks 30 can assist in pushing and correcting the deviation of the director body 1, if the director body 1 has the condition of position deviation, the second pressure sensors 31 can receive pressure information during the moving process, if the pressure information exceeds the normal pressure value range, the second pressure sensors 31 can send the pressure information to the controller 4, the controller 4 can control the warning lamp 18 to light and give out warning, and accordingly the situation that the position deviation of the director body 1 is not found in time is avoided, and the accurate construction situation is facilitated.
As one embodiment of the invention, the adjusting mechanism comprises an adjusting plate 32, wherein the adjusting plate 32 is fixed on one side wall of the connecting seat 9, an electric telescopic rod 33 is fixedly connected on one side wall of the adjusting plate 32, and the telescopic end of the electric telescopic rod 33 is fixed on one side wall of the arc-shaped clamping sleeve 3; during operation, an operator starts the electric telescopic rod 33, and the electric telescopic rod 33 drives the corresponding arc-shaped clamping sleeve 3 to move, so that the pointing instrument body 1 can be taken down or installed conveniently.
Example 3
The working principle of the invention is as follows: in the construction process of indicating a roadway and a tunnel, a laser pointer is generally hoisted at the top of a mine by using an anchor rod and a mounting bracket in the prior art, the laser pointer is adjusted to enable the laser pointer to be directed on a vertical line used in the calibration process, so that the normal construction is ensured, as in the construction process, broken stones possibly fall off in the tunnel, damage to the laser pointer can be caused if the broken stones collide with the laser pointer, the pointing position of the laser pointer can be offset due to vibration generated by the collision, and serious construction errors can be caused if the broken stones are not found in time, the embodiment of the invention can solve the problems, and in the specific embodiment, after the broken stones are scattered and contacted with the shielding plate 6, the impact force generated by the falling of the broken stones can enable the shielding plate 6 to downwards compress the first spring 8 and the damping mechanism, because the spring and the damping mechanism have certain elasticity, the energy of the external force is absorbed by the spring and the damping mechanism, thereby reducing the transmission of vibration and impact force, being beneficial to reducing the damage of broken stone impact force to the pointing instrument body 1, but the impact caused by broken stone cannot be completely eliminated, and the pointing instrument body 1 cannot be ensured not to deviate, so when the vibration sensor 7 detects the vibration, the vibration sensor 7 sends a vibration signal to the controller 4, the controller 4 controls the detection mechanism to start, the detection mechanism can detect the position deviation generated by the pointing instrument body 1 in a range, thereby being beneficial to detecting different parts of the pointing instrument body 1 and improving the detection accuracy of the detection mechanism, in the detection process, if the detection mechanism detects that the position of the director body 1 is deviated, the detection mechanism can synchronously correct the deviation position of the director body 1 and give out an alarm, so that the detection mechanism is favorable for reminding a worker to check the director body 1.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims.
Claims (10)
1. The dual adjustment system of the mining laser direction indicator is characterized by comprising the following steps of:
step one, acquiring first request information, wherein the first request information is generated after vibration information is acquired by a vibration sensor (7);
step two, generating first control information, wherein the first control information is used for controlling the starting of the detection mechanism;
step three, the first control information is sent to the detection mechanism to control the detection mechanism to detect;
step four, acquiring second request information, wherein the second request information is generated by a detection mechanism after acquiring position deviation information;
generating second control information, wherein the second control information is used for controlling the starting of the detection mechanism;
and step six, sending second control information to the detection mechanism to control the detection mechanism to send out an alarm.
2. A dual adjustment system of a mining laser pointer according to claim 1, characterized in that the specific triggering method of the vibration sensor (7) comprises the following steps:
step one, vibration information is obtained;
step two, generating first request information, wherein the first request information is used for requesting a controller (4) to start a detection mechanism;
and step three, the first request information is sent to the controller (4).
3. The dual adjustment system of a mining laser pointer according to claim 2, wherein the specific detection method of the detection mechanism comprises the following steps:
step one, acquiring first control information, and controlling a detection mechanism to start;
step two, obtaining position deviation information;
step three, the position deviation information is sent to a controller (4);
and step four, acquiring second control information, and controlling the detection mechanism to send out an alarm, wherein the second control information is generated after the position deviation information is received by the controller (4).
4. The double-adjusting device of the mining laser direction indicator is applied to the double-adjusting system of the mining laser direction indicator according to claim 3, and is characterized by comprising a direction indicator body (1), a fixed seat (2) and two arc-shaped clamping sleeves (3), wherein a controller (4) is fixedly arranged on one side wall of the fixed seat (2), a connecting rod (5) is fixedly arranged at the top of the fixed seat (2), a shielding plate (6) is sleeved on the outer wall of the connecting rod (5) in a sliding manner, two vibration sensors (7) are symmetrically fixed at the bottom of the shielding plate (6), a first spring (8) is fixed between the shielding plate (6) and the fixed seat (2), and the first spring (8) is sleeved on the outer wall of the connecting rod (5);
connecting seats (9) are symmetrically fixed on the side walls of two sides of the fixed seat (2) adjacent to the controller (4), damping mechanisms are fixed between the shielding plate (6) and the two connecting seats (9), and the damping mechanisms are used for eliminating impact force driven by stones falling in a mine roadway;
an adjusting mechanism is arranged on the side wall of one side of each connecting seat (9), and is used for adjusting the distance between the two arc-shaped clamping sleeves (3);
the utility model discloses a directional instrument, including directional instrument body (1), arc centre gripping cover (3) and connecting seat (9) are provided with detection mechanism respectively between, after vibration sensor (7) detects the vibration, detection mechanism is used for detecting directional instrument body (1) position takes place the skew, and right in the testing process directional instrument body (1) is assisted and is corrected.
5. The dual-adjusting device of the mining laser pointing instrument according to claim 4, wherein the damping mechanism comprises a through groove (10), the through groove (10) is formed in the top of the connecting seat (9), a sliding rod (11) is fixed in the through groove (10), sliding seats (12) are slidably connected to the outer walls of the sliding rod (11), second springs (13) are fixed on the side walls of the two sides of the sliding seat (12), one ends, away from each other, of the two second springs (13) are fixed on the inner wall of the through groove (10) respectively, the two second springs (13) are sleeved on the outer wall of the sliding rod (11), a rotating plate (14) is rotatably connected to the top of the sliding seat (12), and the top end of the rotating plate (14) is rotatably connected to the bottom of the shielding plate (6).
6. The dual-adjustment device of a mining laser direction indicator according to claim 5, wherein the detection mechanism comprises a push plate (15), a sliding groove (16) and a first air cylinder (17), a fixed part of the first air cylinder (17) is fixed on one side wall of the fixed seat (2), the first air cylinder (17) is located at the bottom of the connecting seat (9), the push plate (15) is slidably connected to the bottom of the connecting seat (9), a telescopic end of the first air cylinder (17) is fixedly connected to one side of the push plate (15) close to the fixed seat (2), a warning lamp (18) is fixedly installed at the center of one side of the push plate (15) away from the first air cylinder (17), a rotating seat (19) is fixed at the center of one side of the push plate (15) close to the first air cylinder (17), the sliding groove (16) penetrates through and is arranged on one side wall of the arc-shaped clamping sleeve (3), a transverse detection unit is arranged between the rotating seat (19) and the sliding groove (16), and the transverse direction indicator is used for correcting the transverse direction indicator (1).
7. The dual-adjusting device of the mining laser pointing instrument according to claim 6, wherein the transverse detection unit comprises two elastic telescopic rods (20), the fixed end parts of the two elastic telescopic rods (20) are rotationally connected with the rotating base (19), the telescopic ends of the two elastic telescopic rods (20) are rotationally connected with connecting plates (21), one sides, far away from the elastic telescopic rods (20), of the two connecting plates (21) are respectively fixed with a first righting block (22), the two first righting blocks (22) are respectively located in the sliding groove (16), a connecting spring (23) is fixed between the two first righting blocks (22), one sides, far away from the connecting plates (21), of the two first righting blocks (22) are respectively fixedly provided with a first pressure sensor (24), and the first warning lamp (18) are respectively electrically connected with the controller (4).
8. The dual-adjusting device of the mining laser direction indicator according to claim 7, wherein two pushing plates (15) are slidably connected with sliding plates (25) on one sides of the two pushing plates (15) which are close to each other, the two sliding plates (25) are arranged in a staggered mode, second air cylinders (26) are fixed on one sides of the two pushing plates (15) which are close to each other, the two second air cylinders (26) are electrically connected with the controller (4), telescopic ends of the two second air cylinders (26) are fixedly connected with the two sliding plates (25) respectively, inclined surfaces (27) are formed on one sides of the two sliding plates (25) which are close to each other, and longitudinal detection units are arranged on the inclined surfaces of the two inclined surfaces (27) and are respectively used for detecting and correcting the range of longitudinal offset of the direction indicator body (1).
9. The dual-adjusting device of the mining laser direction indicator according to claim 8, wherein the longitudinal detection unit comprises a displacement groove (28) and an L-shaped connecting rod (29), the displacement groove (28) is formed in one side, close to each other, of the two arc-shaped clamping sleeves (3), one end of the L-shaped connecting rod (29) is in sliding connection with the inclined surface (27), a second righting block (30) is fixed on the other side of the L-shaped connecting rod (29), sliding columns (34) are respectively and slidably connected to two sides of the second righting block (30), a second pressure sensor (31) is fixedly mounted on the top of the second righting block (30), and the second pressure sensor (31) is electrically connected with the controller (4).
10. The dual-adjustment device of the mining laser pointing instrument according to claim 9, wherein the adjustment mechanism comprises an adjustment plate (32), the adjustment plate (32) is fixed on one side wall of the connecting seat (9), an electric telescopic rod (33) is fixedly connected on one side wall of the adjustment plate (32), and a telescopic end of the electric telescopic rod (33) is fixed on one side wall of the arc-shaped clamping sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310676631.4A CN116465380B (en) | 2023-06-08 | 2023-06-08 | Dual adjustment system and device of mining laser direction indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310676631.4A CN116465380B (en) | 2023-06-08 | 2023-06-08 | Dual adjustment system and device of mining laser direction indicator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116465380A true CN116465380A (en) | 2023-07-21 |
| CN116465380B CN116465380B (en) | 2024-01-26 |
Family
ID=87182846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310676631.4A Active CN116465380B (en) | 2023-06-08 | 2023-06-08 | Dual adjustment system and device of mining laser direction indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116465380B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0599670A (en) * | 1991-10-04 | 1993-04-23 | Kajima Corp | Internal space displacement measuring method for tunnel and measuring reflecting plate |
| CN104074548A (en) * | 2014-07-08 | 2014-10-01 | 西安科技大学 | Real-time monitoring device for deviation of laser indicator and monitoring method |
| CN108896034A (en) * | 2018-09-20 | 2018-11-27 | 山西煤炭运销集团晋城有限公司 | Laser orientation instrument anti-deflection device for underground coal mine |
| CN212363204U (en) * | 2020-04-12 | 2021-01-15 | 肥城矿业集团梁宝寺能源有限责任公司 | Fixing device for laser direction indicator with convenient direction accurate adjustment |
| CN212674149U (en) * | 2020-08-07 | 2021-03-09 | 范金健 | Mine underground laser direction indicator convenient to install |
| CN114060008A (en) * | 2021-11-25 | 2022-02-18 | 西安科技大学 | Laser pointing device for roadway construction and deviation correcting method thereof |
-
2023
- 2023-06-08 CN CN202310676631.4A patent/CN116465380B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0599670A (en) * | 1991-10-04 | 1993-04-23 | Kajima Corp | Internal space displacement measuring method for tunnel and measuring reflecting plate |
| CN104074548A (en) * | 2014-07-08 | 2014-10-01 | 西安科技大学 | Real-time monitoring device for deviation of laser indicator and monitoring method |
| CN108896034A (en) * | 2018-09-20 | 2018-11-27 | 山西煤炭运销集团晋城有限公司 | Laser orientation instrument anti-deflection device for underground coal mine |
| CN212363204U (en) * | 2020-04-12 | 2021-01-15 | 肥城矿业集团梁宝寺能源有限责任公司 | Fixing device for laser direction indicator with convenient direction accurate adjustment |
| CN212674149U (en) * | 2020-08-07 | 2021-03-09 | 范金健 | Mine underground laser direction indicator convenient to install |
| CN114060008A (en) * | 2021-11-25 | 2022-02-18 | 西安科技大学 | Laser pointing device for roadway construction and deviation correcting method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116465380B (en) | 2024-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109844224B (en) | Machine for work on top of track and method for operating a machine for work on top of track | |
| EP2813811B1 (en) | Inside-diameter measurement device | |
| KR101391512B1 (en) | pile motion sensing apparatus | |
| NO338964B1 (en) | Procedure for measuring lanes. | |
| WO2020171710A1 (en) | Adjustable pile guide and method of piling | |
| JP4968625B2 (en) | Orbital inspection equipment | |
| US6505406B2 (en) | Guide method for guiding a device that is designed to insert elements into the ground in order to make a structure, and a device for inserting at least one element into the ground using such a guide method | |
| CN103643620B (en) | A kind of laser beam depth of parallelism regulation system and method measured for pavement deflection | |
| CN116465380B (en) | Dual adjustment system and device of mining laser direction indicator | |
| US7325316B2 (en) | Device and method for inserting elements into the ground, mechanism for this device and system using this device | |
| CN117433478B (en) | Guide rail parallelism detection robot and detection method | |
| JPH07299789A (en) | Parallel gripper with spindle driving device | |
| CN115854840A (en) | Tunnel deformation measuring device | |
| CN114322805A (en) | Railway track interval detection device | |
| CN113091561A (en) | Method and device for detecting length of steel bar | |
| CN218561966U (en) | Single-string photoelectric measuring device of tamping car | |
| JP2020168982A (en) | Travel truck | |
| CN109989332A (en) | The control system on beach is supported for loading stage | |
| KR200476586Y1 (en) | A target absorbing both side impacts | |
| CN220435929U (en) | Engineering cost mapping equipment | |
| EP3685119A1 (en) | Detecting misalignment | |
| CN220603718U (en) | Capturing and positioning device for inspection quality | |
| CN218561965U (en) | Double-string photoelectric measuring device of tamping car | |
| CN116381702A (en) | Underground self-tracking distance measuring device of heading machine | |
| CN215546421U (en) | Automatic flexible butt joint adjusting device based on gear and rack driving |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |