CN110596416B - Linear speed detection and calibration device - Google Patents
Linear speed detection and calibration device Download PDFInfo
- Publication number
- CN110596416B CN110596416B CN201911027281.9A CN201911027281A CN110596416B CN 110596416 B CN110596416 B CN 110596416B CN 201911027281 A CN201911027281 A CN 201911027281A CN 110596416 B CN110596416 B CN 110596416B
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- 238000001514 detection method Methods 0.000 title claims abstract description 24
- 230000001681 protective effect Effects 0.000 claims abstract description 23
- 238000006073 displacement reaction Methods 0.000 claims description 15
- 238000004512 die casting Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/007—Testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
- G01P21/02—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
- G01P3/68—Devices characterised by the determination of the time taken to traverse a fixed distance using optical means, i.e. using infrared, visible, or ultraviolet light
Abstract
The invention discloses a linear speed detection and calibration device, relates to the technical field of linear speed detection and calibration, and solves the problems that errors cannot be reduced, the test precision of the linear speed detection and calibration device is guaranteed, and the speed regulation of the detection range is not wide. A linear speed detection and calibration device comprises a protection device, wherein the protection device comprises a protection shell, a chassis, a torque motor and a rotating shaft, the chassis is installed at the lower end of the protection shell, the torque motor is installed on the inner side of the protection shell, the rotating shaft is installed at the upper end of the torque motor, and four adjusting bases are installed at the lower end of the chassis; the stand is installed to the one end of protective housing, and the lead screw is installed to the inboard of stand, and the stopper is installed to the one end of lead screw, and the connecting block is installed to the one end of stopper, and the connecting block is fixed through first fixed knob with the stopper. The invention can reduce error, ensure the testing precision and has wide detecting range and speed regulation.
Description
Technical Field
The invention relates to the technical field of linear speed detection and calibration, in particular to a linear speed detection and calibration device.
Background
With the rapid development of social economy, the speed of any point on an object making circular motion on a fixed axis is called "linear speed", which is generally defined as the instant speed of a particle making curvilinear motion, and the direction of the instant speed is along the tangential direction of a motion track, so the speed is also called tangential speed, which is a physical quantity describing the speed and the direction of the particle making curvilinear motion, the instant speed of each point on the object making curvilinear motion is along the tangential direction of the motion track, a laser speed tester measures the moving distance of a measured object in a certain time interval through laser emission, and calculates the moving speed of the object, and the laser speed tester adopts the principle of laser distance measurement. The laser ranging is to emit laser beams to the object to be measured, receive reflected waves of the laser beams and record the time difference to determine the distance between the object to be measured and the test point, and the laser ranging is to perform laser ranging twice with a specific time interval on the object to be measured to obtain the moving distance of the object to be measured in the time interval, so as to obtain the moving speed of the object to be measured.
However, the existing linear speed detection and calibration device can not reduce the error and ensure the test precision, and the speed regulation of the detection range is not wide; therefore, the existing requirements are not met, and a linear speed detection and calibration device is provided for the linear speed detection and calibration device.
Disclosure of Invention
The invention aims to provide a linear velocity detection and calibration device to solve the problems that the linear velocity detection and calibration device provided in the background technology cannot reduce errors, ensure the test precision, and has a low speed regulation range.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a linear speed detects and calibration device, includes protection device, protection device includes protective housing, chassis, torque motor and pivot, the chassis is installed to the lower extreme of protective housing, torque motor is installed to the inboard of protective housing, torque motor's upper end is installed the pivot, four regulation bases are installed to the lower extreme on chassis.
The stand is installed to the one end of protective housing, the lead screw is installed to the inboard of stand, the stopper is installed to the one end of lead screw, the connecting block is installed to the one end of stopper, it is fixed through first fixed knob with the stopper to connect the block, the percentage table is installed to one side of connecting block, the surface mounting of lead screw lower extreme has first bevel gear, second bevel gear is installed to first bevel gear's one end, the dwang is installed to second bevel gear's one end.
The utility model discloses a laser displacement sensor, including chassis, supporting shoe, regulation pole, threaded sleeve, regulation bearing, slide bar, third fixing knob, laser displacement sensor, telescopic link, regulation spring post, supporting shoe, regulation pole, screw sleeve, regulation bearing, slide hole, regulation pole, slide bar, third fixing knob, telescopic link, regulation spring post, support shoe, regulation pole one side is installed to the upper end, the regulation pole is installed to support shoe one side, screw sleeve is installed to one side of regulation pole, regulation bearing is installed to one side.
Preferably, adjust the base including the supporting seat, remove seat, threaded rod and prism post, the upper end of supporting seat is installed and is removed the seat, remove one side of seat and install the threaded rod, the prism post is installed to one side of threaded rod.
Preferably, a turntable is mounted at the upper end of the rotating shaft, and an angular contact ball bearing is mounted on the outer surface of the rotating shaft.
Preferably, two temperature sensors are installed on the upper end face of the protective shell, and the protective shell and the temperature sensors are fixed through screws.
Preferably, threaded sleeve's surface mounting has the regulation post, threaded sleeve passes through the die-casting shaping with the regulation post, one side of threaded sleeve is laminated completely with one side of adjusting bearing, threaded sleeve passes through the draw-in groove with adjusting bearing and is connected.
Preferably, the inboard of sliding block and the upper end of adjusting the pole laminate completely, the sliding block is fixed through the fixed knob of fourth with the regulation pole, the one end of laser displacement sensor laminates with the one end of slide bar completely, the slide bar is fixed through the fixed knob of fifth with laser displacement sensor.
Preferably, the upper end of the dial indicator is completely attached to one side of the connecting block, the dial indicator is fixed to the connecting block through a second fixing knob, and the model of the dial indicator is G513.
Preferably, the lower end of the screw rod is provided with a bearing, the screw rod is connected with the bearing through a clamping groove, one side of the first bevel gear is completely attached to one side of the second bevel gear, and the first bevel gear is connected with the second bevel gear through a rack.
Preferably, the upper end of supporting seat is laminated completely with the lower extreme that removes the seat, the supporting seat passes through the spout with removing the seat and is connected, remove one side of seat and one side of threaded rod and laminate completely, it passes through the bearing with the threaded rod and is connected to remove the seat, one side of threaded rod and one side of prism post laminate completely, the threaded rod passes through welded fastening with the prism post.
Preferably, the upper end of the rotating shaft is completely attached to the lower end of the rotating disc, the rotating shaft and the rotating disc are fixed through welding, the outer surface of the rotating shaft is completely attached to the inner side of the angular contact ball bearing, the rotating shaft is connected with the angular contact ball bearing through a clamping groove, the rotating disc is of a disc structure, through holes with the same size are uniformly distributed on the upper end face of the rotating disc, and the through holes are uniformly distributed along the radial direction of the table top according to equal hexagons.
Compared with the prior art, the invention has the beneficial effects that: (1) the device adjusts the height by installing the adjusting base, keeps the level, reduces the error during detection, improves the rotation precision and the stability of the rotation of the rotating shaft by utilizing the angular contact ball bearing through the matching of the installing rotating shaft and the angular contact ball bearing, has good detection effect by installing the sliding rod and the laser displacement sensor, is convenient to adjust the rotating screw rod by installing the matching of the first bevel gear and the second bevel gear, keeps the deformation consistency of the edge of the rotating disc under high-speed rotation by utilizing the through hole through the matching of the installing rotating disc and the through hole, and ensures that the circumferential speed of each position of the edge of the rotating disc is the same.
(2) The invention uses the temperature sensor to monitor the temperature value of the surrounding environment of the table-board by the matching of the mounting protective shell and the temperature sensor, converts the influence of the environment temperature on the radius and the circumferential velocity of the table-board into the finally output circumferential velocity of the table-board by an algorithm, eliminates the error caused by the circumferential velocity of the table-board by the change of the environment temperature, can perform mutual detection by the two temperature sensors on the other hand, prevents the temperature value from being output wrongly due to the damage of the temperature sensor, adjusts the distance between the supporting block and the turntable by the matching of the mounting threaded sleeve and the adjusting column and by rotating the threaded sleeve, so that the detection range of the device is wide in speed regulation, detects the verticality of the bottom end of the turntable by the rotation of the turntable by the matching of the mounting dial indicator and the screw rod, and can reduce the error by the adjustment of the adjusting base, guarantee its measuring accuracy, through the cooperation of installation removal seat and threaded rod, adjust the height that removes the seat through rotating the threaded rod for the device can height-adjusting, keeps the straightness that hangs down of device.
Drawings
Fig. 1 is a schematic structural view of the whole of the present invention.
Fig. 2 is a rear view of the invention as a whole.
Fig. 3 is a partial structural schematic view of the protective shell of the present invention.
Fig. 4 is a schematic view of a partial structure of the telescopic rod of the present invention.
FIG. 5 is a schematic view of a partial structure of the slider of the present invention.
Fig. 6 is a partial structural schematic view of the screw rod of the present invention.
Fig. 7 is a partial structural view of the first bevel gear of the present invention.
In the figure: 1. a protection device; 2. adjusting the base; 3. a turntable; 4. a through hole; 5. a card slot; 6. a rotating shaft; 7. a temperature sensor; 8. angular contact ball bearings; 9. a threaded sleeve; 10. adjusting the bearing; 11. a third fixed knob; 12. an adjustment column; 13. adjusting a rod; 14. a support block; 15. a slide hole; 16. a telescopic rod; 17. adjusting the spring post; 18. a column; 19. rotating the rod; 20. a screw rod; 21. a limiting block; 22. a first fixed knob; 23. connecting blocks; 24. a dial indicator; 25. a second fixed knob; 26. a first bevel gear; 27. a second bevel gear; 28. adjusting a rod; 29. a laser displacement sensor; 30. a slider; 31. a fourth fixed knob; 32. a fifth fixed knob; 33. a slide bar; 101. a protective shell; 102. a chassis; 103. a torque motor; 104. a rotating shaft; 201. a supporting seat; 202. a movable seat; 203. a threaded rod; 204. a prismatic column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
The temperature sensor 7 (model: CWDZ 11), the laser displacement sensor 29 (model: HG-C1200) and the torque motor 103 (model: 80TP10GV 22) can be purchased from the market or customized by a person.
Referring to fig. 1 to 7, an embodiment of the present invention includes: the utility model provides a linear speed detects and calibration device, includes protection device 1, and protection device 1 includes protective housing 101, chassis 102, torque motor 103 and pivot 104, and chassis 102 is installed to the lower extreme of protective housing 101, and torque motor 103 is installed to the inboard of protective housing 101, and pivot 104 is installed to torque motor 103's upper end, and four regulation bases 2 are installed to the lower extreme of chassis 102.
The device comprises a chassis 102, clamping grooves 5 are arranged on two sides of the chassis 102, a rotating shaft 6 is arranged on the inner side of each clamping groove 5, an expansion rod 16 is arranged at the upper end of each rotating shaft 6, an adjusting spring post 17 is arranged on the outer surface of the upper end of each expansion rod 16, a supporting block 14 is arranged at the upper end of each adjusting spring post 17, an adjusting rod 13 is arranged on one side of each supporting block 14, a threaded sleeve 9 is arranged on one side of each adjusting rod 13, an adjusting bearing 10 is arranged on one side of each threaded sleeve 9, a sliding hole 15 is formed in the inner side of each supporting block 14, the distance between each supporting block 14 and a rotating disc 3 can be adjusted by rotating the threaded sleeve 9, the speed adjusting range of the device is wide, an adjusting rod 28 is arranged on the inner side of each sliding hole 15, a sliding block 30 is arranged on the upper end of each adjusting rod 28, a sliding rod 33 is arranged on one side of each sliding block 30, each sliding rod 33 is fixed by a third fixing knob 11, and a laser displacement sensor 29 is arranged on one end of each sliding rod 33, the device has good detection effect by the matching of the installation slide rod 33 and the laser displacement sensor 29.
The adjusting base 2 comprises a supporting seat 201, a moving seat 202, a threaded rod 203 and a prismatic column 204, the moving seat 202 is installed at the upper end of the supporting seat 201, the threaded rod 203 is installed on one side of the moving seat 202, the prismatic column 204 is installed on one side of the threaded rod 203, the adjusting device adjusts the height of the adjusting base 2 through installation, the level is kept, and errors during detection are reduced.
The upper end of the rotating shaft 104 is provided with the rotating disc 3, the outer surface of the rotating shaft 104 is provided with the angular contact ball bearing 8, and the device improves the rotation precision and the stability of the rotating shaft 104 by using the angular contact ball bearing 8 through the matching of the rotating shaft 104 and the angular contact ball bearing 8.
Two temperature sensor 7 are installed to the up end of protective housing 101, protective housing 101 passes through the fix with screw with temperature sensor 7, the device is through the cooperation of installation protective housing 101 with temperature sensor 7, make the device utilize temperature sensor 7 to monitor mesa surrounding environment temperature value, convert the influence of ambient temperature to mesa radius and circumference speed to the mesa circumference speed of final output through the algorithm, eliminate the error that the ambient temperature change brought mesa circumference speed, on the other hand can examine each other through two temperature sensor 7, prevent to damage because of temperature sensor 7, output wrong temperature value.
The outer surface mounting of threaded sleeve 9 has regulation post 12, and threaded sleeve 9 passes through die-casting forming with regulation post 12, and one side of threaded sleeve 9 and one side of adjusting bearing 10 laminate completely, and threaded sleeve 9 passes through the draw-in groove with adjusting bearing 10 to be connected, and the device makes its distance of adjusting supporting shoe 14 and carousel 3 through the cooperation of installing threaded sleeve 9 and regulation post 12, through rotating threaded sleeve 9 for the device detection range speed governing is wide.
The inner side of the sliding block 30 is completely attached to the upper end of the adjusting rod 28, the sliding block 30 and the adjusting rod 28 are fixed through the fourth fixing knob 31, one end of the laser displacement sensor 29 is completely attached to one end of the sliding rod 33, the sliding rod 33 and the laser displacement sensor 29 are fixed through the fifth fixing knob 32, and the device is matched with the laser displacement sensor 29 through the installation of the sliding rod 33, so that the detection effect of the device is good.
The upper end of percentage table 24 is laminated completely with one side of connecting block 23, and percentage table 24 is fixed through the fixed knob 25 of second with connecting block 23, and the model of percentage table 24 is G513, and the device is through the cooperation of installation percentage table 24 and lead screw 20, through the rotation of carousel 3, utilizes the percentage table 24 to detect the straightness that hangs down in 3 bottoms of carousel, utilizes regulation base 2 to adjust for the device can reduce the error, guarantees its measuring accuracy.
The bearing is installed to the lower extreme of lead screw 20, and lead screw 20 passes through the draw-in groove with the bearing to be connected, and one side of first bevel gear 26 and one side of second bevel gear 27 laminate completely, and first bevel gear 26 passes through the rack with second bevel gear 27 to be connected, and the device is through the cooperation of installation first bevel gear 26 and second bevel gear 27 for the device conveniently adjusts rotation lead screw 20.
The upper end of supporting seat 201 is laminated completely with the lower extreme that removes seat 202, supporting seat 201 passes through the spout with removing seat 202 and is connected, one side of removing seat 202 is laminated completely with one side of threaded rod 203, it passes through the bearing with threaded rod 203 and is connected to remove seat 202, one side of threaded rod 203 is laminated completely with one side of prismatic column 204, threaded rod 203 passes through welded fastening with prismatic column 204, the device removes the cooperation of seat 202 and threaded rod 203 through the installation, adjust the height that removes seat 202 through rotating threaded rod 203, make the device can height-adjusting, keep the straightness that hangs down of the device.
The upper end of pivot 104 is laminated completely with the lower extreme of carousel 3, pivot 104 passes through welded fastening with carousel 3, the surface of pivot 104 laminates completely with angular contact ball bearing 8's inboard, pivot 104 passes through the draw-in groove with angular contact ball bearing 8 and is connected, carousel 3 is the disc structure, the through-hole 4 that the up end equipartition size is the same of carousel 3, through-hole 4 is according to equal hexagon equipartition along mesa radial direction, the device is through the cooperation of installation carousel 3 with through-hole 4, make the device utilize through-hole 4 to keep carousel 3 at the deformation unanimity of high-speed rotation lower limb, make 3 marginal every position circumference speed of carousel the same.
When in use, the using condition of each mechanism is checked, the device is moved to a working area, the power supply is switched on, the rotating rod 19 is rotated to drive the first bevel gear 26 and the second bevel gear 27 to rotate, the screw rod 20 is driven to rotate through the rotation of the first bevel gear 26, the limiting block 21 drives the connecting block 23 to move, the dial indicator 24 arranged on one side of the connecting block 23 is used for detecting the verticality of the bottom end of the turntable 3, the adjusting base 2 is used for adjusting, so that the device can reduce errors and ensure the testing precision, an object to be detected is placed at the upper end of the turntable 3 through rotation, the upper end of the turntable 3 is provided with a through hole 4, the device keeps the edge deformation of the turntable 3 under high-speed rotation by the through hole 4, the circumferential speed of each position of the edge of the turntable 3 is the same, the threaded sleeve 9 is provided with the telescopic adjusting rod 13 through rotating the adjusting column 12, the distance between the supporting block 14 and the rotary disc 3 is adjusted, so that the speed regulation range of the device is wide.
Claims (8)
1. The utility model provides a linear velocity detects and calibration device, includes protection device (1), its characterized in that: the protection device (1) comprises a protective shell (101), a chassis (102), a torque motor (103) and a rotating shaft (104), wherein the chassis (102) is installed at the lower end of the protective shell (101), the torque motor (103) is installed on the inner side of the protective shell (101), the rotating shaft (104) is installed at the upper end of the torque motor (103), four adjusting bases (2) are installed at the lower end of the chassis (102), a turntable (3) is installed at the upper end of the rotating shaft (104), an angular contact ball bearing (8) is installed on the outer surface of the rotating shaft (104), the upper end of the rotating shaft (104) is completely attached to the lower end of the turntable (3), the rotating shaft (104) and the turntable (3) are fixed through welding, the outer surface of the rotating shaft (104) is completely attached to the inner side of the angular contact ball bearing (8), and the rotating shaft (104) is connected with the angular contact ball bearing (8) through a clamping groove, the rotary table (3) is of a disc structure, through holes (4) with the same size are uniformly distributed on the upper end face of the rotary table (3), and the through holes (4) are uniformly distributed in an equihexagonal manner along the radial direction of the table top;
an upright post (18) is installed at one end of the protective shell (101), a screw rod (20) is installed on the inner side of the upright post (18), a limiting block (21) is installed at one end of the screw rod (20), a connecting block (23) is installed at one end of the limiting block (21), the connecting block (23) and the limiting block (21) are fixed through a first fixing knob (22), a dial indicator (24) is installed at one side of the connecting block (23), a first bevel gear (26) is installed on the outer surface of the lower end of the screw rod (20), a second bevel gear (27) is installed at one end of the first bevel gear (26), and a rotating rod (19) is installed at one end of the second bevel gear (27);
the improved structure of the automobile seat is characterized in that clamping grooves (5) are formed in two sides of the chassis (102), a rotating shaft (6) is installed on the inner side of each clamping groove (5), a telescopic rod (16) is installed at the upper end of each rotating shaft (6), an adjusting spring column (17) is installed on the outer surface of the upper end of each telescopic rod (16), a supporting block (14) is installed at the upper end of each adjusting spring column (17), an adjusting rod (13) is installed on one side of each supporting block (14), a threaded sleeve (9) is installed on one side of each adjusting rod (13), an adjusting bearing (10) is installed on one side of each threaded sleeve (9), a sliding hole (15) is formed in the inner side of each supporting block (14), an adjusting rod (28) is installed on the inner side of each sliding hole (15), a sliding block (30) is installed on the upper end of each adjusting rod (28), a sliding rod (33) is installed on one side of each sliding block (30), and the sliding rods (33) and the sliding blocks (30) are fixed through third fixing knobs (11), and one end of the sliding rod (33) is provided with a laser displacement sensor (29).
2. The linear velocity detecting and calibrating device as claimed in claim 1, wherein: adjust base (2) including supporting seat (201), removal seat (202), threaded rod (203) and prism post (204), the upper end of supporting seat (201) is installed and is removed seat (202), threaded rod (203) are installed to one side of removing seat (202), prism post (204) are installed to one side of threaded rod (203).
3. The linear velocity detecting and calibrating device as claimed in claim 1, wherein: two temperature sensors (7) are installed to the up end of protective housing (101), protective housing (101) passes through the fix with screw with temperature sensor (7).
4. The linear velocity detecting and calibrating device as claimed in claim 1, wherein: the utility model discloses a threaded sleeve's (9) outer surface mounting has regulation post (12), threaded sleeve (9) and regulation post (12) are through die-casting shaping, one side of threaded sleeve (9) and one side of adjusting bearing (10) are laminated completely, threaded sleeve (9) are connected through the draw-in groove with adjusting bearing (10).
5. The linear velocity detecting and calibrating device as claimed in claim 1, wherein: the inboard of sliding block (30) is laminated completely with the upper end of adjusting pole (28), sliding block (30) are fixed through fourth fixed knob (31) with adjusting pole (28), the one end of laser displacement sensor (29) is laminated completely with the one end of slide bar (33), slide bar (33) are fixed through fifth fixed knob (32) with laser displacement sensor (29).
6. The linear velocity detecting and calibrating device as claimed in claim 1, wherein: the upper end of percentage table (24) is laminated with one side of connecting block (23) completely, percentage table (24) are fixed through second fixed knob (25) with connecting block (23), the model of percentage table (24) is G513.
7. The linear velocity detecting and calibrating device as claimed in claim 1, wherein: the bearing is installed to the lower extreme of lead screw (20), lead screw (20) pass through the draw-in groove with the bearing and are connected, one side of first bevel gear (26) and one side of second bevel gear (27) laminate completely, first bevel gear (26) pass through rack connection with second bevel gear (27).
8. A linear velocity detection and calibration apparatus as claimed in claim 2, wherein: the upper end of supporting seat (201) and the lower extreme of removing seat (202) laminate completely, supporting seat (201) with remove seat (202) and pass through the spout and be connected, the one side of removing seat (202) laminates completely with one side of threaded rod (203), it passes through the bearing with threaded rod (203) and is connected to remove seat (202), one side of threaded rod (203) laminates completely with one side of prismatic post (204), threaded rod (203) passes through welded fastening with prismatic post (204).
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| CN201911027281.9A CN110596416B (en) | 2019-10-27 | 2019-10-27 | Linear speed detection and calibration device |
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| CN201911027281.9A CN110596416B (en) | 2019-10-27 | 2019-10-27 | Linear speed detection and calibration device |
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| CN110596416B true CN110596416B (en) | 2021-07-30 |
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