CN114878073A - Dynamic balance test equipment and test method for laser radar rotor - Google Patents
Dynamic balance test equipment and test method for laser radar rotor Download PDFInfo
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- CN114878073A CN114878073A CN202210610889.XA CN202210610889A CN114878073A CN 114878073 A CN114878073 A CN 114878073A CN 202210610889 A CN202210610889 A CN 202210610889A CN 114878073 A CN114878073 A CN 114878073A
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- 238000012360 testing method Methods 0.000 title claims abstract description 39
- 238000010998 test method Methods 0.000 title claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 61
- 230000001133 acceleration Effects 0.000 claims abstract description 20
- 239000010687 lubricating oil Substances 0.000 claims description 33
- 239000003921 oil Substances 0.000 claims description 26
- 230000009471 action Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims 6
- 238000010168 coupling process Methods 0.000 claims 6
- 238000005859 coupling reaction Methods 0.000 claims 6
- 238000005096 rolling process Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000012937 correction Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 238000010030 laminating Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- 230000005489 elastic deformation Effects 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/02—Details of balancing machines or devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/14—Determining imbalance
- G01M1/16—Determining imbalance by oscillating or rotating the body to be tested
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Abstract
The invention belongs to the technical field of rotor dynamic balance detection, in particular to a laser radar rotor dynamic balance test device and a test method, wherein a motor, a driving wheel, a driven wheel, a belt, a detection swing frame, a supporting rod and an acceleration sensor are arranged; the supporting rod is inserted into a rotating shaft hole of a workpiece, the motor provides power, the belt is driven to rotate through transmission of the driving wheel and the driven wheel, the belt is attached to the workpiece and drives the workpiece to rotate, the detection swing frame swings, the detection swing frame transmits vibration of the workpiece to the acceleration sensor, and the vibration is converted into an electric signal, so that dynamic balance test of the laser radar rotor is realized; the friction force between the outer wall of the supporting rod and the inner wall of the rotating shaft hole of the workpiece is reduced through the balls, and the probability of shaking of the workpiece due to uneven friction force is reduced; the ball is fixed and rolled through the ring plate, the probability that the ball is gathered and falls off when rolling is reduced, and the stability of the workpiece during rotation is improved.
Description
Technical Field
The invention belongs to the technical field of rotor dynamic balance detection, and particularly relates to laser radar rotor dynamic balance testing equipment and a testing method.
Background
The laser radar obtains information such as object position, distance, speed, contour and the like by emitting laser beams to a target, detecting and processing optical signals returned by the target; most laser radar products adopt a mechanical rotary scanning scheme, and the accuracy of the laser radar is directly influenced by the dynamic balance of a rotor of the laser radar. The existing dynamic balance detection of the balance machine mainly comprises a rotor with a shaft or a workpiece, and a detection carrier adopts a V-frame supporting belt driving mode.
A Chinese patent with publication number CN108801551A discloses a dynamic balance testing device for a strong magnetic motor rotor, relating to the field of dynamic balance of motors without magnetic armature; the device comprises 2 movable supporting plates, 2 fixed supporting plates, a main supporting plate, a pressing plate upright post, a pressing plate, a strong magnetic motor rotor, a rotor supporting tool and 2 ball bearings; the 2 fixed support plates are symmetrically arranged on two sides of the main support plate; the 2 movable support plates are respectively and fixedly arranged on the outer side walls of the 2 fixed support plates; the rotor supporting tool is fixedly arranged in the middle of the top end of the main supporting plate; the rotor of the strong magnetic motor axially penetrates through the rotor supporting tool; the pressing plate upright post is fixedly arranged at the top end of the main support plate and arranged on one side of the rotor supporting tool; the pressing plate is fixedly arranged at the top ends of the pressing plate stand column and the supporting tool; 2 ball bearings are respectively and fixedly arranged at the top ends of the outer side walls of the 2 movable support plates, and the top ends of the 2 ball bearings are in contact with the rotor of the strong-magnetic motor; the invention realizes that the rotor balance precision is improved to a higher G0.4 level, and the dynamic balance performance is good in consistency.
For a workpiece without a shaft, although the self-driving mode is adopted for testing conveniently and simply, namely the rotor is arranged in the stator and is assembled into a finished product for testing conveniently, if balance correction is needed, the rotor is arranged in the stator, so that the balance correction is relatively difficult, and even the correction cannot be carried out at all.
Therefore, the invention provides dynamic balance test equipment and a dynamic balance test method for a laser radar rotor.
Disclosure of Invention
To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to dynamic balance test equipment for a laser radar rotor, which comprises a base, a supporting arm, a motor, a driving wheel, a driven wheel, a belt, a detection swing frame, a supporting rod and an acceleration sensor, wherein the supporting arm is arranged on the base; the top surface of the base is provided with a mounting groove, a detection swing frame is slidably mounted in the mounting groove, a pair of supporting frames is arranged on the top surface of the detection swing frame, a supporting rod is fixedly connected to the top of each supporting frame, an acceleration sensor is arranged at the bottom of the detection swing frame, a supporting arm is arranged on one side of the top surface of the base, a motor is fixedly connected to one surface, far away from the detection swing frame, of each supporting arm, a rotating shaft of the motor penetrates through the supporting arms in a rotating mode, a driving wheel is rotatably mounted on one surface, close to the detection swing frame, of each supporting arm, the driving wheel is fixedly connected with the rotating shaft of the motor, a plurality of driven wheels are rotatably mounted on one surface, close to the detection swing frame, of each supporting arm, and belts are sleeved on the outer rings of the driven wheels and the outer rings of the driving wheels; the base in the embodiment is used for supporting and installing components on the whole detection equipment, and the base is installed on the machine table through the soft rubber column, and the soft rubber column is used for damping, so that the vibration generated by correction or the vibration of other machine tables is prevented from interfering with signals of the detection equipment; during operation, the work piece is placed between the bracing piece of both sides for the bracing piece inserts in the rotation axis hole of work piece, holds up the work piece, and motor drive action wheel rotates, drives the belt and rotates, and belt laminating work piece drives the work piece rotation, makes to detect the swing span swing, detects the swing span and transmits the acceleration inductor with the vibrations of work piece, converts vibrations into the signal of telecommunication, thereby realizes carrying out the dynamic balance test to the laser radar rotor.
Preferably, a first air cylinder is fixedly connected to one side of the top surface of the base, a second air cylinder is arranged at the end of a piston rod of the first air cylinder, and a piston rod of the second air cylinder is fixedly connected with the supporting arm; during operation, a cylinder and No. two cylinder cooperations drive the support arm and remove to the top of work piece for the belt compresses tightly the work piece, thereby the staff of being convenient for adjusts the position of belt, and the belt pushes down the elasticity degree of work piece, the staff of being convenient for then controls the rotatory degree of work piece.
Preferably, one side, close to the supporting arm, of the top surface of the detection swing frame is fixedly connected with a pair of third cylinders, the end of a piston rod of each third cylinder is fixedly connected with a bracket, the middle of the top surface of the detection swing frame is fixedly connected with a fourth cylinder, and a piston rod of each fourth cylinder is fixedly connected with the supporting frame on one side; during operation, a workpiece is placed on the bracket through manual work or a mechanical arm, the brackets on the two sides of the third cylinder are close to the workpiece clamping and supporting frame, the support frames on the two sides of the fourth cylinder are close to the two ends of the workpiece, the support rods are pushed to be inserted into the rotating shaft holes of the workpiece, the workpiece is supported, the bracket is driven by the third cylinder to loosen the workpiece, the workpiece is rotated along the support rods, the workpiece is placed accurately by a worker conveniently, and the detection accuracy of the workpiece is improved.
Preferably, four corners of the top surface inside the base are bolted with connecting rods, and the bottom ends of the connecting rods are bolted with the bottom of the detection swing frame; during operation, the detection swing frame is supported in the mounting groove through the connecting rod, the detection swing frame is supported through the connecting rod, meanwhile, resistance in the swing process of the detection swing frame is reduced, and therefore sensitivity of dynamic balance testing of workpieces is improved.
Preferably, vertical walls are fixedly connected to two sides of the bottom surface of the inner portion of the base, notches are formed in the top surfaces of the vertical walls, transverse rods are arranged inside the notches on the two sides, inserts are fixedly connected to the bottom surface of the middle portion of the detection swing frame, and the transverse rods penetrate through the inserts in a sliding mode; when the detection swing frame swings during working, the insert is driven to swing, the cross rod is elastically deformed, the swing amplitude of the detection swing frame is improved, and therefore the intensity of a vibration signal received by the acceleration sensor is improved.
Preferably, the outer ring of the end of the supporting rod is provided with a plurality of ring grooves, a ring plate is slidably mounted inside the ring grooves, a plurality of ball holes are formed in the middle of the ring plate, and balls are rotatably mounted inside the ball holes; the supporting rod is inserted into a rotating shaft hole of the workpiece, the workpiece rotates around the supporting rod, and the rotating of the workpiece is easy to shake due to the fact that the friction force exists between the supporting rod and the inner wall of the rotating shaft hole of the workpiece, so that the detection result is easy to deviate; when the workpiece rotates, the ball is driven to rotate in the ball hole, so that the ring plate rotates along the ring groove; the friction force between the outer wall of the supporting rod and the inner wall of the rotating shaft hole of the workpiece is reduced through the balls, so that the probability of shaking caused by uneven friction force during rotation of the workpiece is reduced; the ball is fixed and rolled through the ring plate, the probability that the ball is gathered and falls off when rolling is reduced, and therefore the stability of the workpiece during rotation is further improved.
Preferably, an oil cavity is formed in the supporting rod, a sealing bolt is installed in an oil filling hole of the oil cavity in a threaded mode, a plurality of through holes are formed between the oil cavity and the ring groove, and lubricating oil is filled in the oil cavity; during operation, when the workpiece rotates, the ball is driven to rotate, lubricating oil in the oil cavity flows into the inner wall of the annular groove through the through hole, and when the ball rolls, the lubricating oil is smeared on the surface of the ball, so that the friction force generated when the workpiece rotates is further reduced.
Preferably, one end of the oil cavity, which is close to the ring groove, is provided with a conical sponge block, the outer ring of the conical sponge block is provided with a plurality of piles, the piles penetrate through the through holes, and the piles are in sliding fit with the balls; during operation, lubricating oil lasts moist toper sponge piece, and fine hair absorbs lubricating oil from toper sponge piece, and when the ball rolled, fine hair smears the surface of ball with lubricating oil uniformly, has reduced the volume that lubricating oil flowed into the annular simultaneously to reduce the waste of lubricating oil, improved lubricating oil utilization ratio then.
A laser radar rotor dynamic balance test method is suitable for the laser radar rotor dynamic balance test equipment and comprises the following steps:
s1: a workpiece is placed on the bracket through a manual or mechanical arm, and the third cylinder drives the bracket to clamp the workpiece;
s2: the fourth cylinder drives the support frames on the two sides to be close to the two ends of the workpiece, the support rod is pushed to be inserted into a rotating shaft hole of the workpiece to support the workpiece, and the third cylinder drives the bracket to loosen the workpiece;
s3: the first air cylinder is matched with the second air cylinder to drive the supporting arm to move to the upper part of the workpiece, so that the belt tightly presses the workpiece;
s4: the motor drive action wheel rotates, drives the belt and rotates, and the drive work piece is rotatory for detect the rocker swing, detect the rocker and transmit the acceleration inductor with the vibrations of work piece, convert the vibrations into the signal of telecommunication, and then realize the test of unbalance amount.
The invention has the following beneficial effects:
1. the dynamic balance test equipment and the test method of the laser radar rotor provided by the invention have the advantages that the dynamic balance test equipment and the test method of the laser radar rotor are characterized in that a motor, a driving wheel, a driven wheel, a belt, a detection swing frame, a supporting rod and an acceleration sensor are arranged; the work piece is placed between the bracing piece of both sides for the bracing piece inserts in the rotation axis hole of work piece, and the motor provides power, through action wheel and the transmission from the driving wheel, drives the belt and rotates, and belt laminating work piece, drive work piece is rotatory, makes to detect the swing span swing, detects the swing span and transmits the acceleration inductor with the vibrations of work piece, converts vibrations into the signal of telecommunication, thereby realizes carrying out the dynamic balance test to the laser radar rotor.
2. The dynamic balance test equipment and the test method of the laser radar rotor provided by the invention have the advantages that the annular plate and the ball are arranged; when the support rod is inserted into the rotating shaft hole of the workpiece, the outer wall of the ball is contacted with the inner wall of the rotating shaft hole of the workpiece, and when the workpiece rotates, the ball is driven to rotate in the ball hole, so that the ring plate rotates along the ring groove; the friction force between the outer wall of the supporting rod and the inner wall of the rotating shaft hole of the workpiece is reduced through the balls, so that the probability of shaking caused by uneven friction force during rotation of the workpiece is reduced; the ball is fixed and rolled through the ring plate, the probability that the ball is gathered and falls off when rolling is reduced, and therefore the stability of the workpiece during rotation is further improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of a first embodiment of the present invention;
FIG. 2 is a schematic diagram of an embodiment of a base;
FIG. 3 is a cross-sectional view of a support bar according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a partial enlarged view of FIG. 4 at B;
FIG. 6 is a cross-sectional view of a second support rod in accordance with an embodiment of the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6 at C;
FIG. 8 is a flow chart of a testing method of the present invention;
in the figure: 1. a base; 2. a support arm; 3. a motor; 4. a driving wheel; 5. a driven wheel; 6. a belt; 7. detecting the swing frame; 8. a support frame; 9. a support bar; 10. an acceleration sensor; 11. mounting grooves; 12. a first cylinder; 13. a second cylinder; 14. a third cylinder; 15. a bracket; 16. a cylinder number four; 17. a connecting rod; 18. a vertical wall; 19. a notch; 20. a cross bar; 21. an insert; 22. a ring groove; 23. a ring plate; 24. a ball hole; 25. a ball bearing; 26. an oil chamber; 27. a seal bolt; 28. a through hole; 29. a conical sponge block; 30. fluff; 31. a flow guide hole; 32. and (6) indenting.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example one
As shown in fig. 1 to 2, a laser radar rotor dynamic balance test apparatus according to an embodiment of the present invention includes a base 1, a support arm 2, a motor 3, a driving wheel 4, a driven wheel 5, a belt 6, a detection swing frame 7, a support frame 8, a support rod 9, and an acceleration sensor 10; the detection swing frame comprises a base 1 and is characterized in that a mounting groove 11 is formed in the top surface of the base 1, a detection swing frame 7 is slidably mounted in the mounting groove 11, a pair of supporting frames 8 is arranged on the top surface of the detection swing frame 7, a supporting rod 9 is fixedly connected to the top of each supporting frame 8, an acceleration sensor 10 is arranged at the bottom of each detection swing frame 7, a supporting arm 2 is arranged on one side of the top surface of the base 1, a motor 3 is fixedly connected to one surface, far away from the detection swing frame 7, of each supporting arm 2, a rotating shaft of the motor 3 penetrates through the corresponding supporting arm 2 in a rotating mode, a driving wheel 4 is rotatably mounted on one surface, close to the detection swing frame 7, of each supporting arm 2, a plurality of driven wheels 5 are rotatably mounted on one surface, close to the detection swing frame 7, of each driven wheel 5, and a belt 6 is sleeved on the outer rings of the driving wheels 4; the base 1 in the embodiment is used for supporting and installing components on the whole detection equipment, the base 1 is installed on a machine table through a soft rubber column, and the soft rubber column is used for damping, so that the vibration generated by correction or the vibration of other machine tables is prevented from interfering with signals of the detection equipment; during operation, the work piece is placed between the bracing piece 9 of both sides for bracing piece 9 inserts the rotation axis of work piece downthehole, holds up the work piece, and motor 3 drive action wheel 4 rotates, drives belt 6 and rotates, and 6 laminating work pieces of belt drive work piece is rotatory, makes and detects the swing span 7 swing, detects the swing span 7 and transmits acceleration inductor 10 with the vibrations of work piece, converts vibrations into the signal of telecommunication, thereby realizes carrying out the dynamic balance test to the laser radar rotor.
As shown in fig. 1 to 2, a first cylinder 12 is fixedly connected to one side of the top surface of the base 1, a second cylinder 13 is arranged at the end of a piston rod of the first cylinder 12, and a piston rod of the second cylinder 13 is fixedly connected to the support arm 2; during operation, cylinder 12 and No. two cylinder 13 cooperations drive support arm 2 and remove to the top of work piece for belt 6 compresses tightly the work piece, thereby the staff of being convenient for adjusts the position of belt 6, and belt 6 pushes down the elasticity degree of work piece, the staff of being convenient for then controls the rotatory degree of work piece.
As shown in fig. 1 to 2, a pair of third air cylinders 14 is fixedly connected to one side of the top surface of the detection swing frame 7 close to the support arm 2, a bracket 15 is fixedly connected to an end of a piston rod of each third air cylinder 14, a fourth air cylinder 16 is fixedly connected to the middle of the top surface of the detection swing frame 7, and a piston rod of each fourth air cylinder 16 is fixedly connected to the support frame 8 on one side; during operation, place the work piece on bracket 15 through manual work or manipulator, bracket 15 of No. three cylinder 14 drive both sides is close to mutually and holds up the work piece centre gripping, and support frame 8 of No. four cylinder 16 drive both sides is close to the both ends of work piece, promotes the rotation axis that bracing piece 9 inserted the work piece downthehole, holds up the work piece, and No. three cylinder 14 drive bracket 15 loosens the work piece for the work piece rotates along bracing piece 9, thereby be convenient for that the staff is accurate places the work piece, improved the detection accuracy of work piece.
As shown in fig. 1 to 2, four corners of the inner top surface of the base 1 are bolted with connecting rods 17, and the bottom ends of the connecting rods 17 are bolted with the bottom of the detection swing frame 7; during operation, the detection swing frame 7 is supported in the installation groove 11 through the connecting rod 17, the detection swing frame 7 is supported through the connecting rod 17, meanwhile, resistance when the detection swing frame 7 swings is reduced, and therefore sensitivity of workpiece dynamic balance testing is improved.
As shown in fig. 1 to 2, vertical walls 18 are fixedly connected to two sides of the bottom surface of the interior of the base 1, a notch 19 is formed in the top surface of each vertical wall 18, a cross bar 20 is arranged inside each notch 19 on two sides, an insert 21 is fixedly connected to the bottom surface of the middle portion of the detection swing frame 7, and the cross bar 20 slidably penetrates through the insert 21; when the detection swing frame 7 swings, the insert 21 is driven to swing, so that the cross rod 20 is elastically deformed, the swing amplitude of the detection swing frame 7 is increased, and the intensity of a vibration signal received by the acceleration sensor 10 is increased.
As shown in fig. 3 to 5, a plurality of ring grooves 22 are formed in an outer ring of an end of the support rod 9, a ring plate 23 is slidably mounted inside the ring grooves 22, a plurality of ball holes 24 are formed in the middle of the ring plate 23, and balls 25 are rotatably mounted inside the ball holes 24; the supporting rod 9 is inserted into a rotating shaft hole of the workpiece, the workpiece rotates around the supporting rod 9, and the supporting rod 9 and the inner wall of the rotating shaft hole of the workpiece have friction force, so that the workpiece is easy to shake in rotation, and the detection result is easy to deviate; when the workpiece rotating device works, the supporting rod 9 is inserted into the rotating shaft hole of the workpiece, so that the outer wall of the ball 25 is contacted with the inner wall of the rotating shaft hole of the workpiece, and when the workpiece rotates, the ball 25 is driven to rotate in the ball hole 24, so that the ring plate 23 rotates along the ring groove 22; the friction force between the outer wall of the support rod 9 and the inner wall of the rotating shaft hole of the workpiece is reduced through the balls 25, so that the probability of shaking caused by uneven friction force during the rotation of the workpiece is reduced; the ring plate 23 fixes the balls 25 to roll, so that the probability of aggregation and falling of the balls 25 during rolling is reduced, and the stability of the workpiece during rotation is further improved.
As shown in fig. 3 to 5, an oil chamber 26 is formed inside the support rod 9, a sealing bolt 27 is threadedly mounted inside an oil filling hole of the oil chamber 26, a plurality of through holes 28 are formed between the oil chamber 26 and the ring groove 22, and lubricating oil is filled inside the oil chamber 26; when the workpiece rotates, the ball 25 is driven to rotate, the lubricating oil in the oil cavity 26 flows into the inner wall of the annular groove 22 through the through hole 28, and the lubricating oil is coated on the surface of the ball 25 when the ball 25 rolls, so that the friction force of the workpiece during rotation is further reduced.
As shown in fig. 3 to 5, a conical sponge block 29 is arranged at one end of the oil chamber 26 close to the ring groove 22, a plurality of piles 30 are arranged on the outer ring of the conical sponge block 29, the piles 30 penetrate through the through holes 28, and the piles 30 are in sliding fit with the balls 25; during operation, lubricating oil lasts moist toper sponge piece 29, and fluff 30 absorbs lubricating oil from toper sponge piece 29, and when ball 25 rolled, fluff 30 paintd lubricating oil to the surface of ball 25 uniformly, has reduced the volume in lubricating oil inflow annular 22 simultaneously to the waste of lubricating oil has been reduced, has improved lubricating oil utilization ratio then.
As shown in fig. 8, a laser radar rotor dynamic balance testing method is applicable to the laser radar rotor dynamic balance testing apparatus, and the testing method includes the following steps:
s1: a workpiece is placed on the bracket 15 manually or by a manipulator, and the third air cylinder 14 drives the bracket 15 to clamp the workpiece;
s2: the fourth cylinder 16 drives the support frames 8 at two sides to be close to two ends of the workpiece, the support rod 9 is pushed to be inserted into a rotating shaft hole of the workpiece to support the workpiece, and the third cylinder 14 drives the bracket 15 to loosen the workpiece;
s3: the first air cylinder 12 is matched with the second air cylinder 13 to drive the supporting arm 2 to move above the workpiece, so that the belt 6 is pressed against the workpiece;
s4: the motor 3 drives the driving wheel 4 to rotate, drives the belt 6 to rotate, drives the workpiece to rotate, enables the detection swing frame 7 to swing, enables the vibration of the workpiece to be transmitted to the acceleration sensor 10 through the detection swing frame 7, converts the vibration into an electric signal, and then realizes the unbalance testing.
Example two
As shown in fig. 6 to 7, a first comparative example, in which another embodiment of the present invention is: a plurality of flow guide holes 31 are formed in one end, far away from the ring groove 22, of the conical sponge block 29, and a plurality of dents 32 are formed in the outer wall of the ball 25; when the oil cavity 26 works, lubricating oil in the oil cavity 26 enters the conical sponge block 29 through the flow guide holes 31, so that the efficiency of the conical sponge block 29 for absorbing the lubricating oil is improved; the fluff 30 uniformly coats the lubricating oil on the surface of the ball 25, the lubricating oil coated on the surface of the ball 25 is gathered inside the dent 32, and when the ball 25 rolls to the bottom, the lubricating oil in the dent 32 flows out, so that the lubricating oil flows back to the inside of the ring groove 22, the utilization rate of the lubricating oil is further improved, and meanwhile, the lubricating oil in the dent 32 on the top of the ball 25 is coated in a rotating hole of a workpiece, so that the smoothness of the rotation of the workpiece is further improved.
When in work; injecting lubricating oil into the interior of the oil chamber 26 using a syringe so that the lubricating oil sufficiently wets the conical sponge block 29, and sealing the oil filling hole of the oil chamber 26 using the sealing bolt 27; a workpiece is placed on the bracket 15 through a manual or mechanical hand, the third cylinder 14 drives the brackets 15 on the two sides to be close to each other to clamp and support the workpiece, the fourth cylinder 16 drives the support frames 8 on the two sides to be close to the two ends of the workpiece, the support rod 9 is pushed to be inserted into the rotating shaft hole of the workpiece, the outer wall of the ball 25 is contacted with the inner wall of the rotating shaft hole of the workpiece to support the workpiece, and the third cylinder 14 drives the brackets 15 to loosen the workpiece so that the workpiece rotates along the support rod 9; the first air cylinder 12 is matched with the second air cylinder 13 to drive the supporting arm 2 to move above the workpiece, so that the belt 6 is pressed against the workpiece;
the motor 3 drives the driving wheel 4 to rotate to drive the belt 6 to rotate, the belt 6 is attached to a workpiece to drive the workpiece to rotate, the ball 25 is driven to rotate in the ball hole 24, the ring plate 23 rotates along the annular groove 22, lubricating oil continuously wets the conical sponge block 29, the fluff 30 absorbs the lubricating oil from the conical sponge block 29, when the ball 25 rolls, the fluff 30 uniformly coats the lubricating oil on the surface of the ball 25, and meanwhile, the amount of the lubricating oil flowing into the annular groove 22 is reduced; the ball 25 reduces the friction between the outer wall of the support rod 9 and the inner wall of the rotating shaft hole of the workpiece, and improves the stability of the workpiece during rotation;
when the work piece is rotatory, make and detect the swing of rocker 7, drive the swing of inserting 21 for horizontal pole 20 takes place elastic deformation, has improved the swing range that detects rocker 7, detects rocker 7 and transmits the vibrations of work piece to acceleration sensor 10, and acceleration sensor 10 converts vibrations into the signal of telecommunication, thereby realizes carrying out the dynamic balance test to the laser radar rotor.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and so on.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a laser radar rotor dynamic balance test equipment which characterized in that: comprises a base (1), a supporting arm (2), a motor (3), a driving wheel (4), a driven wheel (5), a belt (6), a detection swing frame (7), a supporting frame (8), a supporting rod (9) and an acceleration sensor (10); the detection device is characterized in that a mounting groove (11) is formed in the top surface of the base (1), a detection swing frame (7) is arranged in the mounting groove (11) in a sliding mode, a pair of support frames (8) is arranged on the top surface of the detection swing frame (7), a support rod (9) is fixedly connected to the top of each support frame (8), an acceleration sensor (10) is arranged at the bottom of the detection swing frame (7), a support arm (2) is arranged on one side of the top surface of the base (1), a motor (3) is fixedly connected to one side, far away from the detection swing frame (7), of each support arm (2), a rotating shaft of the motor (3) rotates to penetrate through each support arm (2), a driving wheel (4) is rotatably installed on one side, close to the detection swing frame (7), of each support arm (2), the driving wheel (4) is fixedly connected with the rotating shaft of the motor (3), and a plurality of driven wheels (5) are rotatably installed on one side, close to the detection swing frame (7), of each support arm (2), the outer ring of the driven wheel (5) and the outer ring of the driving wheel (4) are sleeved with a belt (6).
2. The lidar rotor dynamic balance testing apparatus according to claim 1, wherein: the top surface one side rigid coupling of base (1) has cylinder (12), the piston rod end of cylinder (12) is provided with No. two cylinder (13), the piston rod and support arm (2) rigid coupling of No. two cylinder (13).
3. The lidar rotor dynamic balance testing apparatus according to claim 2, wherein: one side rigid coupling that the top surface that detects rocker (7) is close to support arm (2) has a pair of No. three cylinder (14), the piston rod end rigid coupling of No. three cylinder (14) has bracket (15), the top surface middle part rigid coupling that detects rocker (7) has No. four cylinder (16), the piston rod of No. four cylinder (16) and support frame (8) rigid coupling of one side.
4. The lidar rotor dynamic balance testing apparatus according to claim 1, wherein: the four corners of the top surface inside the base (1) are bolted with connecting rods (17), and the bottom ends of the connecting rods (17) are bolted with the bottom of the detection swing frame (7).
5. The lidar rotor dynamic balance testing apparatus according to claim 1, wherein: the inner bottom surface of the base (1) is fixedly connected with vertical walls (18) on two sides, a notch (19) is formed in the top surface of each vertical wall (18), cross rods (20) are arranged on two sides inside the notches (19), inserts (21) are fixedly connected with the bottom surface of the middle of the detection swing frame (7), and the cross rods (20) slidably penetrate through the inserts (21).
6. The lidar rotor dynamic balance testing apparatus according to claim 1, wherein: a plurality of annular grooves (22) have been seted up to the end outer lane of bracing piece (9), the inside slidable mounting of annular groove (22) has crown plate (23), a plurality of ball holes (24) have been seted up at the middle part of crown plate (23), ball (25) have been installed in the inside roll of ball hole (24).
7. The lidar rotor dynamic balance testing apparatus according to claim 6, wherein: an oil cavity (26) is formed in the supporting rod (9), a sealing bolt (27) is installed in the oil filling hole of the oil cavity (26) through threads, a plurality of through holes (28) are formed between the oil cavity (26) and the ring groove (22), and lubricating oil is filled in the oil cavity (26).
8. The lidar rotor dynamic balance testing apparatus according to claim 7, wherein: one end of the oil cavity (26) close to the ring groove (22) is provided with a conical sponge block (29), the outer ring of the conical sponge block (29) is provided with a plurality of villi (30), the villi (30) penetrates through the through hole (28), and the villi (30) is in sliding fit with the ball (25).
9. The lidar rotor dynamic balance testing apparatus of claim 8, wherein: a plurality of flow guide holes (31) are formed in one end, far away from the ring groove (22), of the conical sponge block (29), and a plurality of dents (32) are formed in the outer wall of the ball (25).
10. A dynamic balance test method for a laser radar rotor is characterized by comprising the following steps: the test method is suitable for the laser radar rotor dynamic balance test equipment as claimed in any one of claims 1 to 9, and comprises the following steps:
s1: a workpiece is placed on the bracket (15) manually or by a manipulator, and the third air cylinder (14) drives the bracket (15) to clamp the workpiece;
s2: the fourth cylinder (16) drives the support frames (8) at two sides to be close to two ends of a workpiece, the support rods (9) are pushed to be inserted into rotating shaft holes of the workpiece to support the workpiece, and the third cylinder (14) drives the bracket (15) to loosen the workpiece;
s3: the first cylinder (12) is matched with the second cylinder (13) to drive the supporting arm (2) to move to the upper part of the workpiece, so that the belt (6) presses the workpiece tightly;
s4: motor (3) drive action wheel (4) rotate, drive belt (6) and rotate, and the drive work piece is rotatory for detect the swing of rocker (7), detect the swing (7) and transmit acceleration inductor (10) with the vibrations of work piece, convert vibrations into the signal of telecommunication, and then realize the test of unbalance amount.
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| CN202210610889.XA CN114878073A (en) | 2022-05-31 | 2022-05-31 | Dynamic balance test equipment and test method for laser radar rotor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117309241A (en) * | 2023-11-03 | 2023-12-29 | 中山迈雷特数控技术有限公司 | Hollow shaft part balance center measuring machine tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117309241A (en) * | 2023-11-03 | 2023-12-29 | 中山迈雷特数控技术有限公司 | Hollow shaft part balance center measuring machine tool |
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