A kind of gearbox gear transmission precision performance online detection device and detection method

Abstract

The present invention belongs to the technical field of precision device detection, and specifically is an online detection device and method for the transmission precision performance of a gearbox gear, comprising a shaft disc, an adjustment unit is arranged on one side of the shaft disc, a buffer unit is arranged on the adjustment unit, and a correction unit is arranged on one side of the buffer unit; the present invention limits and guides a vertical rod in a rotating state through a sub-arc groove until an arrow plate controls a moon plate to synchronously move toward the axis center position of the shaft disc, and in this process, a detection rod is controlled to move toward the axis center of the shaft disc through a ten-combination seat until a sensing ball contacts the outer wall of a gear shaft to be detected, that is, the radial runout deviation displacement of the shaft to be detected is fed back at multiple angles through a multi-directional sensing ball, so as to ensure the detection accuracy while simplifying the structure of the instrument, reducing the difficulty of maintenance and the manufacturing cost, and the operation method is intuitive, the applicability is high, and it is not afraid of special harsh environments such as high temperature, high humidity and strong magnetic field, which helps to improve the detection efficiency in large-scale environments.

Description

Technical Field

[0001] The present invention belongs to the technical field of precision device detection, and in particular relates to an online detection device and method for the transmission precision performance of a gearbox gear. Background Art

[0002] Gear accuracy: Gear manufacturing accuracy, including motion accuracy, smoothness accuracy, contact accuracy and backlash accuracy;

[0003] Gears are usually installed on gear shafts. The gear shaft provides stable support and installation environment for the gears. Therefore, the matching accuracy between the gear shaft and the gear directly affects the accuracy, stability and efficiency of the transmission. It is an important component of the gear set transmission.

[0004] However, in the working environment, there is an instantaneous temperature accumulation phenomenon due to transmission friction, vibration or external air interaction. In the long run, thermal expansion or contraction will occur between the gears and the gear shafts, thereby changing the meshing clearance and meshing position of the gears, affecting the transmission accuracy.

[0005] In addition, instantaneous changes in load, instability or overload will cause elastic deformation, vibration or wear between the gear and the gear shaft, until the shaft material is fatigued and fractured, and even cause the key connection and interference fit between the gear shaft and the gear to become loose, affecting the normal meshing of the gears and destroying the stability of the oil film, thereby reducing the transmission accuracy;

[0006] The existing methods for testing the transmission accuracy of gear shafts are usually: gear measurement center, three-dimensional measuring machine, universal gear measuring instrument and laser interferometer, that is, the gear shaft geometry, tooth pitch, tooth shape, axial play and radial runout data are scanned or measured by the above instruments, and finally the data are collected and analyzed in a centralized manner;

[0007] Although it is possible to detect the transmission accuracy of gear shafts, high-precision detection instruments are not only expensive, which increases the detection costs of enterprises, but also their detection methods and steps are cumbersome, and the measurement data and data analysis cycles are long, which are not suitable for rapid detection in batches; at the same time, some precision instrument detection needs to work under strict environmental conditions such as constant temperature, constant humidity and vibration-free, which increases the detection site and maintenance costs, and the detection methods of complex or high-precision detection instruments require operators to have professional knowledge and emergency skills. Not only is the training cost high, but there is also the problem of operating errors affecting the accuracy of the detection results. Summary of the invention

[0008] (I) Purpose of the invention

[0009] The purpose of the present invention is to propose an online detection device for the transmission accuracy performance of a gearbox gear, so as to realize real-time detection of the accuracy of the gear shaft inside the gearbox, so as to avoid deviation of the gear shaft during long-term operation, thereby affecting the transmission accuracy.

[0010] (II) Technical solution

[0011] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: an online detection device and method for the transmission accuracy performance of a gearbox gear, comprising a shaft disc, an adjustment unit is arranged on one side of the shaft disc, a buffer unit is arranged on the adjustment unit, and a correction unit is arranged on one side of the buffer unit;

[0012] The correction unit comprises:

[0013] The moon plate is evenly arranged on the outer side of the shaft disc in the axial direction, and the moon plate is one twelfth of a circle;

[0014] The suspension rods are grouped in two and are symmetrically clamped and installed on the end surface of the moon plate close to the axis of the shaft disc;

[0015] The convex plates are clamped and installed on the outer wall of the suspension rod in the same group, and the number of the convex plates corresponds to the number of the crescent plates;

[0016] The ten-joint seat is installed in the middle of the convex joint plate through the sliding snap-fit ​​of the steel column;

[0017] The detection rod is mounted in the middle of the ten-joint seat near the axis of the shaft disc;

[0018] The induction ball is installed in a rolling manner at the end of the detection rod away from the ten-combination seat;

[0019] The club is installed in the middle of the end face of one side of the ten-combination seat in a plug-in manner;

[0020] Ear seats, three in a group, evenly distributed on one end surface of the convex plate;

[0021] The wire plate is installed in the middle position of the convex plate through the sliding and snap-fitting of the steel column.

[0022] Preferably, a straight column is rotatably mounted between the two ear seats near the axis of the shaft disc, a snake mouth groove for sliding engagement with the club is provided on the outer wall of the straight column, a helical gear for sliding engagement with the straight column is rotatably mounted between the two ear seats at one end away from the axis of the shaft disc, a helical rack arranged opposite to the straight column is slidably mounted on one side of the convex plate, and the helical rack and the helical gear are meshed with each other, and a work seat is mounted on the end of the helical rack away from the straight column;

[0023] An extended-range rack is installed on the end face of the work seat close to the middle position of the convex joint plate, and an extended-range gear meshing with the extended-range rack is installed on the end face of the convex joint plate away from the axis of the shaft disc through a rotating shaft. A single-sided rack meshing with the extended-range gear is installed on the end face of the line plate away from the axis of the shaft disc through a strip plate. A T-section column is installed on the end of the line plate away from the ten-joint seat through a clamping connection with the moon plate for sliding clamping.

[0024] Preferably, a groove is provided on the side of the convex plate away from the work seat, and the electrode columns are evenly mounted in an array inside the groove. An angle plate is detachably mounted on the end face of the wire plate away from the axis of the shaft disk through bolts, and an electrode sheet tangent to the electrode column is mounted on one end of the angle plate close to the electrode column. Warning lights electrically connected to the electrode columns are evenly distributed in an array in the middle of the end face of the moon plate away from the axis of the shaft disk, and three lights form a group.

[0025] Preferably, the adjustment unit comprises:

[0026] The rotating drum is mounted on the axis of the shaft disc by snap-fitting;

[0027] The main shaft is rotatably mounted on the axis of the end face of the drum away from the boom;

[0028] A driving gear is mounted on the outer wall of the main shaft;

[0029] The back plate is rotatably mounted on the outer wall of the main shaft at one end away from the shaft disc, and the back plate is rotatably mounted on the main shaft;

[0030] The mouth frame is mounted on the middle position of one end of the back plate close to the shaft disc;

[0031] The secondary shaft is rotatably mounted in the middle of the vertical section of the frame and is distributed through the back plate;

[0032] The driven gear is mounted on the outer wall of the secondary shaft and meshes with the driving gear;

[0033] A paging frame is detachably mounted on the end of the back plate away from the secondary shaft by bolts;

[0034] There are two telescopic gas rods, which are symmetrically clamped and arranged at one end of the paging frame away from the opening frame.

[0035] Preferably, a double-headed column is embedded in the axial position of one end of the rotating drum away from the back plate, a telescopic probe is installed at the axial position of the double-headed column through spring sliding clamping cooperation, and a shock-absorbing seat is jointly clamped and installed on one end of two telescopic gas rods away from the paging frame.

[0036] Preferably, sub-arc grooves are evenly opened on the outer side of the driving gear shaft center section, and end plates are evenly mounted on the outer wall of the shaft disc in a snap-fitting manner. An arrow plate is slidably mounted on the middle position of the end face of the end plate close to the back plate, and a vertical rod is snap-fitted with the sub-arc groove at one end of the arrow plate close to the shaft center. Balls are evenly distributed on the contact end faces of the arrow plate and the end plate and are rollingly mounted with the arrow plate.

[0037] Preferably, the buffer unit comprises:

[0038] The outer ear plate is clamped and installed on the end surface of the arrow plate away from the back plate;

[0039] The inner ear plate is clamped and installed on the end surface of the end plate away from the back plate;

[0040] A vertical rod is installed between the two oppositely arranged outer ear plates and the inner ear plates by sliding and snap-fitting;

[0041] A rubber pad, mounted on opposite surfaces of the outer ear plate and the inner ear plate, which are arranged opposite to each other;

[0042] A shock absorbing spring is sleeved and installed between the two rubber pads arranged opposite to each other;

[0043] A rubber hose is sleeved and installed between the two rubber pads that are arranged opposite to each other, and the shock absorbing spring is inside the rubber hose;

[0044] The air cylinder is mounted on the inner ear seat at one end close to the axis of the shaft disc by snap-fitting;

[0045] The air bladder is snap-fitted and installed at the inner axis of the air cylinder;

[0046] The air plug is snap-fitted and installed at the end of the vertical rod away from the moon plate, and is made of rubber.

[0047] Preferably, the air bladder is symmetrically clamped with a U-mouth frame at one end near the axis of the shaft disc, and the vertical section of the U-mouth frame is rotatably mounted with a plunger which is plug-in distributed with the air bladder. The outer wall of the plunger at one end near the axis of the air bladder is evenly provided with air holes, and the outer wall of the plunger is symmetrically provided with gaskets, and one of the gaskets is clamped and mounted with the end face of the U-mouth frame away from the air bladder, and the other gasket is fixedly connected to the outer wall of the plunger, and the outer wall of the plunger is sleeved with a telescopic spring located between the two gaskets, and two ring pieces are clamped and mounted between the air cylinder and the air bladder, and a rubber plug is symmetrically slidingly clamped and mounted between the two ring pieces, and the outer wall of the rubber plug is sleeved with a reset spring located between the two ring pieces.

[0048] A method for detecting transmission accuracy of a gearbox gear shaft is provided, wherein the above-mentioned online detection device for detecting transmission accuracy of a gearbox gear is used to perform the detection, and the specific steps are as follows:

[0049] S1: First, relative movement is generated between the vertical rod and the sub-arc groove. Under the support and guidance of the end plate, the arrow plate continuously moves toward or away from the axis end of the shaft disk. At the same time, the moon plate controls the correction unit to move toward or away from the axis end of the shaft disk synchronously with the arrow plate.

[0050] S2: Then, the outer ear plate is controlled by the arrow plate, and the vertical rod is synchronously driven to approach or move away from the axis end of the shaft disc under the guidance of the inner ear plate. After that, the gas plug gradually moves toward the bottom wall of the gas cylinder under the synchronous action of the vertical rod, and the gas in the gas cylinder is compressed until the telescopic spring drives the gasket to move away from the axis of the gas bladder under the further stable support of the U-mouth frame under the force exerted by the gas;

[0051] S3: Finally, by sensing each polarization displacement of the ball, the detection rod drives the ten-combination seat to move. Driven by the ten-combination seat, the ball rod generates relative movement with the snake mouth slot. After that, the snake mouth slot forces the straight column to drive the helical gear to rotate at the same angle as the straight column under the support and guidance of the ear seat under the limiting action of the ball rod. In this process, the helical rack moves one end distance toward the axis of the shaft disk under the meshing transmission effect of the helical gear. When the range-extending gear meshes with the range-extending rack, the unilateral rack is controlled to drive the line plate to move away from the axis of the shaft disk under the further guidance of the convex plate. At this time, the moving distance of the unilateral rack is twice the moving distance of the range-extending rack.

[0052] The present invention has the following beneficial effects:

[0053] 1. The present invention limits and guides the vertical rod in the rotating state through the sub-arc groove until the arrow plate controls the moon plate to move synchronously toward the axis center position of the shaft disk under the further guiding action of the end plate. In this process, the convex plate controls the detection rod to move toward the axis center of the shaft disk through the ten-combination seat under the synchronous action of the suspension rod until the sensing ball contacts the outer wall of the gear shaft to be detected, that is, through the multi-directional contact between the sensing ball and the outer wall of the shaft to be detected, the radial runout deviation displacement of the shaft to be detected is fed back from multiple angles, which ensures the detection accuracy while simplifying the instrument structure, reducing the maintenance difficulty and manufacturing cost, and the operation method is intuitive, the applicability is high, and it is not afraid of special harsh environments such as high temperature, high humidity and strong magnetic field, which helps to improve the detection efficiency in large-scale environments.

[0054] 2. The present invention causes the straight column to rotate under the guidance of the snake-mouth groove through the horizontal movement of the detection rod. After that, the bevel rack, under the meshing action of the bevel gear, synchronously drives the range-extending gear to drive the unilateral rack to move, and at this time the moving distance of the unilateral rack is twice the moving distance of the detection rod, thereby realizing the feedback of the amplified angle plate on the moving distance of the detection rod, thereby improving the contact sensitivity, real-time and accuracy between the electrode sheet and the electrode column, and helping the operator to replace the gear shaft with radial deviation in time, thereby improving the transmission accuracy of the gear shaft, reducing the safety accident rate in production, increasing the service life of the gear, and reducing the production cost of the enterprise.

[0055] 3. The present invention absorbs and degrades the radial force generated during the movement of the vertical rod through the shock-absorbing spring, thereby reducing the vibration generated when the moon plate moves, thereby improving the contact accuracy between the sensing ball and the outer wall of the shaft end to be detected. At the same time, through the friction between the air plug and the inner wall of the air bladder and the reverse force between the air plug and the plunger, the axial force generated during the movement of the vertical rod is buffered and degraded, that is, the influence of external environmental factors on the sensing ball is reduced to a certain extent, resulting in radial displacement between the sensing ball and the outer wall of the shaft to be detected that is not generated by the operation of the shaft end itself, which helps to improve the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0057] Figure 2 The present invention is attached Figure 1 Right view of the structure.

[0058] Figure 3 The present invention is attached Figure 1 Front view of the structure.

[0059] Figure 4 The present invention is attached Figure 1 Another perspective showing the structure.

[0060] Figure 5 It is a three-dimensional display diagram of the local structure of the adjustment unit, buffer unit and correction unit of the present invention.

[0061] Figure 6 The present invention is attached Figure 5 Right view of the structure.

[0062] Figure 7 It is a diagram showing the local structure of the adjustment unit and the buffer unit of the present invention.

[0063] Figure 8 It is a cross-sectional view showing the local structure of the buffer unit of the present invention.

[0064] Fig. 9 The present invention is attached Figure 8 Schematic diagram of the local structure method at A in the middle.

[0065] Fig.10 The present invention is attached Figure 8 Enlarged schematic diagram of the local structure at point B in the middle.

[0066] Fig.11 It is a three-dimensional display diagram of the local structure of the correction unit of the present invention.

[0067] Fig.12 The present invention is attached Fig.11The local structure at point C in the middle is shown.

[0068] Fig.13 The present invention is attached Fig.11 Medium structural plan view.

[0069] Numbers in the figure: 1, shaft disc; 2, adjustment unit; 3, buffer unit; 4, correction unit;

[0070] 21. Rotating drum; 22. Main shaft; 23. Driving gear; 24. Back plate; 25. Mouth plate; 26. Countershaft; 27. Driven gear; 28. Page rack; 29. ​​Telescopic gas rod;

[0071] 211, double-headed column; 212, telescopic probe; 213, shock-absorbing seat;

[0072] 231, sub-arc groove; 232, end plate; 233, arrow plate; 234, vertical rod; 235, ball;

[0073] 31. External ear plate; 32. Internal ear plate; 33. Vertical rod; 34. Rubber pad; 35. Shock-absorbing spring; 36. Rubber hose; 37. Air cylinder; 38. Air bladder; 39. Air plug;

[0074] 371, U-shaped frame; 372, plunger; 373, air hole; 374, gasket; 375, telescopic spring; 376, ring piece; 377, rubber plug; 378, return spring;

[0075] 41. Moon plate; 42. Suspension rod; 43. Convex joint plate; 44. Ten joint seat; 45. Detection rod; 46. Induction ball; 47. Ball rod; 48. Ear seat; 49. Line plate;

[0076] 431, straight column; 432, snake mouth groove; 433, bevel gear; 434, bevel rack; 435, workpiece seat; 436, range-extending rack; 437, range-extending gear; 438, single-sided rack; 439, T-section column;

[0077] 491. groove; 492. electrode column; 493. angle plate; 494. electrode sheet; 495. warning light. DETAILED DESCRIPTION

[0078] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0079] It should be noted that the terms “vertical”, “horizontal”, “left”, “right” and similar expressions used in this document are only for the purpose of explanation and do not represent the only implementation method.

[0080] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0081] Reference Figure 1 and Figure 2 It can be seen that an online detection device and method for gearbox gear transmission accuracy performance comprises a shaft disc 1, an adjustment unit 2 is arranged on one side of the shaft disc 1, a buffer unit 3 is arranged on the adjustment unit 2, and a correction unit 4 is arranged on one side of the buffer unit 3;

[0082] Reference Figure 2 , Figure 3 and Figure 4 It can be seen that the adjustment unit 2 includes: a rotating drum 21, which is clamped and installed at the axis center of the shaft disc 1; a main shaft 22, which is rotatably mounted at the axis center of the end surface of the rotating drum 21 away from the suspension rod 42; a driving gear 23, which is clamped and installed on the outer wall of the main shaft 22;

[0083] The back plate 24 is rotatably mounted on the outer wall of the main shaft 22 away from the shaft disc 1, and the back plate 24 is rotatably mounted with the main shaft 22; the mouth plate 25 is clamped and mounted at the middle position of one end of the back plate 24 close to the shaft disc 1;

[0084] The secondary shaft 26 is rotatably mounted in the middle of the vertical section of the mouth plate 25 and is distributed through the back plate 24; the driven gear 27 is mounted on the outer wall of the secondary shaft 26 and meshes with the driving gear 23; the paging frame 28 is detachably mounted on the end of the back plate 24 away from the secondary shaft 26 by bolts; the telescopic gas rods 29 are two in number and are symmetrically mounted on the end of the paging frame 28 away from the mouth plate 25;

[0085] Reference Figure 1 , Figure 5 and Figure 6 It can be seen that a double-headed column 211 is embeddedly installed at the axial position of the end of the rotating drum 21 away from the back plate 24, and a telescopic probe 212 is installed at the axial position of the double-headed column 211 through a spring sliding clamping fit, and a shock-absorbing seat 213 is commonly clamped and installed at one end of the two telescopic gas rods 29 away from the paging frame 28;

[0086] Reference Figure 4 , Figure 5 , Figure 6 and Figure 7 It can be seen that sub-arc grooves 231 are evenly opened on the outer side of the axis section of the driving gear 23, the outer wall of the shaft disc 1 is evenly fitted with an end plate 232, an arrow plate 233 is slidably fitted with the end surface of the end plate 232 close to the back plate 24, and one end of the arrow plate 233 close to the axis of the shaft disc 1 is fitted with a vertical rod 234 fitted with the sub-arc groove 231, and the end surfaces of the arrow plate 233 in contact with the end plate 232 are evenly distributed with balls 235 rollingly fitted with the arrow plate 233.

[0087] The specific process of the arrow plate 233 moving toward the axial end of the shaft disc 1 is as follows:

[0088] The driven gear 27 is controlled by the secondary shaft 26 (the stability of the secondary shaft 26 during rotation is further improved by the mouth plate 25), and meshes with the driving gear 23. In specific implementation, the secondary shaft 26 can be driven to rotate by an external motor. At this time, when the driving gear 23 rotates, the vertical rod 234 and the sub-arc groove 231 produce relative movement. Thereafter, the arrow plate 233 is supported and guided by the end plate 232 (the relative movement between the vertical rod 234 and the sub-arc groove 231 provides the arrow plate 233 with a friction force to overcome the friction between the arrow plate 233 and the end plate 232), and continuously moves toward or away from the axial end of the shaft disc 1 (the movement direction of the arrow plate 233 is directly related to the direction of the driving gear 23);

[0089] The overall movement process and mode of the buffer unit 3 and the correction unit 4:

[0090] When performing precision testing on transmission shafts or gear shafts at different positions:

[0091] Driven by the telescopic gas rod 29, the paging frame 28 synchronously controls the back plate 24 to drive the main shaft 22 and the secondary shaft 26 to move away from the shock absorber seat 213 or away from it (in specific implementation, the principle of the telescopic gas rod 29: when the gas rod is compressed by external force, the internal gas is compressed and the pressure increases. Since the gas is compressible, the gas rod will gradually shorten; when the external force disappears, the compressed gas expands and generates thrust, and the gas rod gradually extends until it returns to its initial length or reaches a new equilibrium position). In this way, the relevant parameters of the gear shaft at different positions can be detected, which is not only convenient for adjustment, but also helps to increase the detection range and enhance the practicality of the product itself, thereby improving market competitiveness;

[0092] Ball 235: changes the contact form between arrow plate 233 and end plate 232, that is, changes the friction form between the two - from sliding friction to rolling friction; rolling friction friction is relatively small (sliding friction), so it can reduce energy loss during mechanical movement, which helps to improve energy utilization. At the same time, the reduction of friction will inevitably reduce the degree of wear between the two, which helps to increase the service life of the two and reduce maintenance and replacement costs;

[0093] In addition, the resistance generated by rolling friction is more uniform, so the running process is relatively smoother, which helps to improve the movement accuracy and stability of the arrow board 233;

[0094] Shock absorber 213: It can not only effectively absorb and buffer the vibration and impact generated by the operation of the adjustment unit 2, the buffer unit 3 and the correction unit 4, the external environment or other sources, avoid fatigue damage to a certain extent, and protect the adjustment unit 2, the buffer unit 3 and the correction unit 4 from damage; but also help to improve the overall stability and accuracy of the product, reduce the impact of vibration on the instrument, maintain the stable operation of the instrument, and improve the working accuracy, which is particularly important for processing equipment such as precision instruments;

[0095] Telescopic probe 212: Through the contact between the telescopic probe 212 and the radial end face of the shaft to be tested (in specific implementation, the telescopic probe 212 can be connected to the double-headed column 211 through a spring sliding connection), the axial movement data of the gear shaft to be tested is fed back to the outside world in real time, so as to judge whether the transmission accuracy of the gear shaft to be tested meets the production process requirements (in specific implementation, a sensor can be added to the end of the telescopic gas rod 29 close to the double-headed column 211 to calculate and collect the axial movement distance data of the gear shaft to be tested, and finally the collected information is converted into an electrical signal through an external PLC to an external display device).

[0096] Reference Figure 1 , Figure 7 and Figure 8 It can be known that the buffer unit 3 includes: an outer ear plate 31, which is snap-fitted and installed on the end face of the arrow plate 233 away from the back plate 24; an inner ear plate 32, which is snap-fitted and installed on the end face of the end plate 232 away from the back plate 24; a vertical rod 33, which is slidably snap-fitted and installed between two outer ear plates 31 and inner ear plates 32 that are arranged opposite to each other; a rubber pad 34, which is snap-fitted and installed on the opposite surfaces of the outer ear plates 31 and inner ear plates 32 that are arranged opposite to each other; a shock-absorbing spring 35, which is sleeved and installed between the two rubber pads 34 that are arranged opposite to each other; a rubber hose 36, which is sleeved and installed between the two rubber pads 34 that are arranged opposite to each other, and the shock-absorbing spring 35 is inside the rubber hose 36; an air cylinder 37, which is snap-fitted and installed at one end of the inner ear seat 48 close to the axis of the shaft disc 1; an air bladder 38, which is snap-fitted and installed at the internal axis position of the air cylinder 37; an air plug 39, which is snap-fitted and installed at one end of the vertical rod 33 away from the moon plate 41, and is made of rubber;

[0097] Reference Figure 8 , Fig. 9 and Fig.10It can be seen that a U-mouth frame 371 is symmetrically mounted on one end of the air bladder 38 near the axis of the shaft disc 1, and a plunger 372 is installed in a plug-in manner on the vertical section of the U-mouth frame 371 in a through-type rotational cooperation. The outer wall of the plunger 372 near the axis of the air bladder 38 is evenly provided with air holes 373, and the outer wall of the plunger 372 is symmetrically provided with gaskets 374, and one of the gaskets 374 is mounted on the end face of the U-mouth frame 371 away from the air bladder 38, and the other gasket 374 is fixedly connected to the outer wall of the plunger 372, and the outer wall of the plunger 372 is sleeved with a telescopic spring 375 located between the two gaskets 374, and two ring pieces 376 are clamped and installed between the air cylinder 37 and the air bladder 38, and a rubber plug 377 is symmetrically slidingly clamped and installed between the two ring pieces 376, and the outer wall of the rubber plug 377 is sleeved with a return spring 378 located between the two ring pieces 376.

[0098] The further absorption and degradation process of the external environment interference during the movement of the arrow plate 233 by the buffer unit 3:

[0099] Under the control of the arrow plate 233, the outer ear plate 31 synchronously causes the vertical rod 33 to approach or move away from the axial end of the shaft disc 1 under the guidance of the inner ear plate 32. In this process, the small radial vibration and impact generated when the vertical rod 33 moves are absorbed and the kinetic energy is decomposed by the rubber pad 34 (in specific implementation, the diameter difference between the inner wall diameter of the rubber pad 34 and the vertical rod 33 is within ±0.5mm, which not only avoids direct contact between the rubber pad 34 and the vertical rod 33, but also ensures the feasibility of the implementation of the plan of the rubber pad 34 absorbing and degrading the radial kinetic energy of the vertical rod 33);

[0100] In addition, when the vertical rod 33 moves radially along the shaft disc 1, the rubber tube 36 (which is wavy as a whole) and the shock-absorbing spring 35 are elastically deformed (when the vertical rod 33 moves in the opposite direction: it can gradually absorb energy, achieve slow and stable recovery, and reduce the impact of shock and vibration on itself), thereby further assisting the rubber pad 34 to pre-absorb and degrade the radial runout caused by the small vibration or impact of the vertical rod 33, and fully ensure the unidirectional stability of the movement of the vertical rod 33 or the arrow plate 233;

[0101] At the same time, the air plug 39 gradually moves toward the bottom wall of the air cylinder 37 under the synchronous action of the vertical rod 33 (the sliding friction between the rubber air plug 39 and the inner wall of the air cylinder 37 helps to improve its "tolerance" and buffering of the radial runout of the vertical rod 33). At this time, the gas in the air cylinder 37 is compressed (the compressed gas provides a reverse force to the air plug 39 to relieve and offset the impact generated by the movement of the vertical rod 33), until the telescopic spring 375, under the force applied by the gas, drives the gasket 374 (the gasket 374 at one end away from the axis of the air bladder 38) to move in the direction away from the axis of the air bladder 38 under the further stable support of the U-mouth frame 371;

[0102] After that, the air hole 373 is separated from the sealing area where the plunger 372 contacts the air bladder 38, and the compressed gas in the air bladder 38 gradually flows through the air hole 373 to between the gas cylinder 37 and the air bladder 38, until the return spring 378 drives the rubber plug 377 to move away from the axial end of the shaft disc 1 under the action of gas squeezing, and finally the gas flows to the outside, that is, through the telescopic properties of the telescopic spring 375 and the return spring 378, the compressed gas in the air bladder 38 is gradually guided and degraded, so as to fully ensure the stability of the vertical rod 33 when driving the air plug 39 to move;

[0103] It is hereby explained that the air cylinder 37 is provided with a one-way valve connected to the outside world near the axial end of the shaft disc 1, that is, the outside gas can enter the inside of the air cylinder 37, but when the air plug 39 moves toward the bottom wall of the air cylinder 37, the internal air cylinder 37 will not flow to the outside world through this one-way valve (not shown in the attached drawings).

[0104] Reference Figure 1 , Fig.11 , Fig.12 and Fig.13 It can be seen that the correction unit 4 includes: a moon plate 41, which is evenly arranged on the outer side of the shaft disc 1 in the axial direction, and the moon plate 41 is a twelfth of a circle; two suspension rods 42 are grouped together, symmetrically clamped and installed on the end face of the moon plate 41 close to the axis of the shaft disc 1; a convex plate 43, which is clamped and installed on the outer wall of the suspension rod 42 in the same group, and the number corresponds to the moon plate 41; a ten-joint seat 44, which is clamped and installed in the middle position of the convex plate 43 through a steel column sliding clamping fit; a detection rod 45, which is clamped and installed in the middle position of one end of the ten-joint seat 44 close to the axis of the shaft disc 1;

[0105] The induction ball 46 is rollingly mounted on the end of the detection rod 45 away from the ten-combination seat 44; the ball rod 47 is plug-in mounted in the middle of the end surface of one side of the ten-combination seat 44; the ear seats 48 are grouped in three and are evenly distributed on the end surface of one side of the convex plate 43; the wire plate 49 is mounted in the middle of the convex plate 43 through the sliding clamping fit of the steel column;

[0106] Reference Fig.11 , Fig.12 and Fig.13 It can be seen that a straight column 431 is rotatably mounted between the two ear seats 48 near the axis of the shaft disc 1, and a snake mouth groove 432 is provided on the outer wall of the straight column 431 for sliding engagement with the ball rod 47. A helical gear 433 is rotatably mounted between the two ear seats 48 at one end away from the axis of the shaft disc 1 and is engaged with the straight column 431. A helical rack 434 is slidably engaged with the straight column 431 and is installed on one side of the convex plate 43. The helical rack 434 is meshed with the helical gear 433, and a work seat 435 is engaged with the end of the helical rack 434 away from the straight column 431.

[0107] An extended-range rack 436 is mounted on the end face of the workpiece seat 435 near the middle of the convex plate 43, and an extended-range gear 437 meshing with the extended-range rack 436 is mounted on the end face of the convex plate 43 away from the axis of the shaft disc 1 through a rotating shaft, and a single-sided rack 438 meshing with the extended-range gear 437 is mounted on the end face of the line plate 49 away from the axis of the shaft disc 1 through a strip plate, and a T-section column 439 is mounted on the end of the line plate 49 away from the ten-combination seat 44 through a sliding clamping installation with the moon plate 41;

[0108] Reference Figure 4 , Fig.11 and Fig.12 It can be seen that a groove 491 is provided on the side of the convex plate 43 away from the work seat 435, and the electrode columns 492 are evenly installed in an array inside the groove 491. An angle plate 493 is detachably installed on the end surface of the wire plate 49 away from the axis of the shaft disc 1 through bolts, and an electrode sheet 494 tangential to the electrode column 492 is installed on the end of the angle plate 493 close to the electrode column 492. Warning lights 495 electrically connected to the electrode column 492 are evenly distributed in an array in the middle position of the end surface of the moon plate 41 away from the axis of the shaft disc 1, and three are in a group.

[0109] The process of the correction unit 4 moving toward the axis end of the shaft disc 1 as a whole:

[0110] Under the control of the arrow plate 233, the moon plate 41 and the suspension rod 42 drive the convex plate 43 to move toward the axis of the shaft disc 1 until the sensing ball 46 contacts the outer wall of the gear shaft to be detected.

[0111] Specific working process of correction unit 4:

[0112] When the sensing ball 46 (in multiple directions and angles) contacts the gear shaft to be detected, the gear shaft to be detected rotates synchronously:

[0113] First, when the gear shaft to be detected has radial runout, the sensing ball 46 in contact with it is continuously squeezed, and then the squeezed sensing ball 46 controls the detection rod 45 to apply a reverse force to the ten-combination seat 44;

[0114] Next, the ball rod 47, driven by the ten-joint seat 44 (the convex plate 43 guides and supports the ten-joint seat 44 during the movement to ensure its movement stability), generates relative movement with the snake mouth groove 432. Thereafter, the snake mouth groove 432, under the limiting action of the ball rod 47, forces the straight column 431 to rotate a certain angle under the support and guidance of the ear seat 48.

[0115] Finally, the bevel gear 433 rotates at the same angle as the straight column 431. During this process, the bevel rack 434 moves a distance toward the axis of the shaft disc 1 under the meshing transmission effect of the bevel gear 433 (the direction of movement depends on the rotation direction of the snake mouth groove 432). When the range-increasing gear 437 is meshed with the range-increasing rack 436, the unilateral rack 438 is controlled to drive the wire plate 49 to move away from the axis of the shaft disc 1 under the further guidance of the convex plate 43. At this time, the moving distance of the unilateral rack 438 is twice the moving distance of the range-increasing rack 436 (or the detection rod 45) (the specific situation can be analyzed in detail in terms of how many times the travel distance is in practice).

[0116] Through the coordination among the range-extending rack 436, the range-extending gear 437 and the single-sided rack 438, the feedback sensitivity of the small movement distance of the detection rod 45 is amplified, that is, the angle plate 493, driven by the line plate 49 (the movement stability of the line plate 49 is further increased by the T-segment column 439), can more obviously control the contact response between the electrode sheet 494 and the electrode column 492 at different positions, and through different contacts, the radial runout degree of the gear shaft to be detected is fed back to the outside world in the form of an alarm with the warning light 495 (the three lights can set different alarm levels according to the number of lights on or the lights at different positions), which helps to replace the gear shaft with problems in time and reduce the production accident rate.

[0117] The present invention provides an online detection device and method for gearbox gear transmission accuracy performance as follows: Step 1: First, relative movement is generated between the vertical rod 234 and the sub-arc groove 231, and the arrow plate 233 is supported and guided by the end plate 232, and continuously approaches or moves away from the axial end of the shaft disc 1. At the same time, the moon plate 41 controls the correction unit 4 to move toward or away from the axial end of the shaft disc 1 as a whole synchronously with the arrow plate 233;

[0118] Step 2: Then, the outer ear plate 31 is controlled by the arrow plate 233 to synchronously drive the vertical rod 33 to move closer to or away from the axial end of the shaft disc 1 under the guidance of the inner ear plate 32. After that, the gas plug 39 gradually moves toward the bottom wall of the gas cylinder 37 under the synchronous action of the vertical rod 33, and the gas in the gas cylinder 37 is compressed until the telescopic spring 375 drives the gasket 374 to move away from the axis of the gas bladder 38 under the force exerted by the gas, under the further stable support of the U-mouth frame 371;

[0119] Step 3: Finally, by sensing each polarization displacement of the sensing ball 46, the detection rod 45 drives the ten-combination seat 44 to move. Driven by the ten-combination seat 44, the ball rod 47 generates relative movement with the snake mouth groove 432. Thereafter, the snake mouth groove 432 forces the straight column 431 to rotate at the same angle as the straight column 431 under the support and guidance of the ear seat 48 under the limiting action of the ball rod 47. In this process, the bevel rack 434 moves one end distance toward the axis direction of the shaft disk 1 under the meshing transmission effect of the bevel gear 433. When the range-extending gear 437 meshes with the range-extending rack 436, it controls the unilateral rack 438 to drive the line plate 49 to move away from the axis end of the shaft disk 1 under the further guidance of the convex plate 43. At this time, the moving distance of the unilateral rack 438 is twice the moving distance of the range-extending rack 436.

[0120] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0121] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An online detection device for gearbox gear transmission accuracy performance, comprising a shaft disc, characterized in that: An adjustment unit is provided on one side of the shaft disc, a buffer unit is provided on the adjustment unit, and a correction unit is provided on one side of the buffer unit; The correction unit comprises: The moon plate is evenly arranged axially on the outside of the shaft disc; The suspension rods are grouped in two and are symmetrically clamped and installed on the end surface of the moon plate close to the axis of the shaft disc; The convex plates are clamped and installed on the outer wall of the suspension rod in the same group, and the number of the convex plates corresponds to the number of the crescent plates; The ten-joint seat is installed in the middle of the convex joint plate through the sliding snap-fit ​​of the steel column; The detection rod is mounted in the middle of the ten-joint seat near the axis of the shaft disc; The induction ball is installed in a rolling manner at the end of the detection rod away from the ten-combination seat; The club is installed in the middle of the end face of one side of the ten-combination seat in a plug-in manner; Ear seats, three in a group, evenly distributed on one end surface of the convex plate; The wire plate is installed in the middle of the convex plate through the sliding snap-fit ​​of the steel column; A straight column is rotatably mounted between the two ear seats near the axis of the shaft disc, and a snake mouth groove is provided on the outer wall of the straight column for sliding engagement with the club, and a helical gear is rotatably mounted between the two ear seats at one end away from the axis of the shaft disc, and a helical rack arranged opposite to the straight column is slidably mounted on one side of the convex plate, and the helical rack and the helical gear are meshed with each other, and a work seat is mounted on the end of the helical rack away from the straight column; An extended-range rack is mounted on the end face of the workpiece seat near the middle of the convex plate, and an extended-range gear meshing with the extended-range rack is mounted on the end of the convex plate away from the axis of the shaft disc through a rotating shaft, and a single-sided rack meshing with the extended-range gear is mounted on the end face of the line plate away from the axis of the shaft disc through a strip plate; The adjustment unit comprises: The rotating drum is mounted on the axis of the shaft disc by snap-fitting; The main shaft is rotatably mounted on the axis of the end face of the drum away from the boom; A driving gear is mounted on the outer wall of the main shaft; The back plate is rotatably mounted on the outer wall of the main shaft at one end away from the shaft disc, and the back plate is rotatably mounted on the main shaft; The mouth plate is mounted on the middle position of one end of the back plate close to the shaft disc; The secondary shaft is rotatably mounted in the middle of the vertical section of the mouth plate; The driven gear is mounted on the outer wall of the secondary shaft and meshes with the driving gear; Sub-arc grooves are evenly formed on the outer side of the axis section of the driving gear, and end plates are evenly mounted on the outer wall of the shaft disc in a clamping fit. An arrow plate is slidably mounted in a clamping fit at the middle position of the end surface of one side of the end plate close to the back plate, and a vertical rod is clamped and mounted in a clamping fit with the sub-arc groove at one end of the arrow plate close to the axis center of the shaft disc; The buffer unit comprises: The outer ear plate is clamped and installed on the end surface of the arrow plate away from the back plate; The inner ear plate is clamped and installed on the end surface of the end plate away from the back plate; A vertical rod is installed between the two oppositely arranged outer ear plates and the inner ear plates by sliding and snap-fitting; A rubber pad, mounted on opposite surfaces of the outer ear plate and the inner ear plate, which are arranged opposite to each other; A shock absorbing spring is sleeved and installed between the two rubber pads arranged opposite to each other; A rubber hose is sleeved and installed between the two rubber pads that are arranged opposite to each other; The air cylinder is mounted on the inner ear seat at one end close to the axis of the shaft disc by snap-fitting; The air bladder is snap-fitted and installed at the inner axis of the air cylinder; The air plug is mounted on the end of the vertical rod away from the moon plate; The air bladder is symmetrically clamped with a U-mouth frame at one end near the axis of the shaft disc, and a plunger distributed in a plug-in manner with the air bladder is installed in a through-type rotational cooperation on the vertical section of the U-mouth frame. Air holes are evenly opened on the outer wall of the plunger near the axis of the air bladder, and gaskets are symmetrically arranged on the outer wall of the plunger, and one of the gaskets is clamped and installed with the end face of the U-mouth frame away from the air bladder, and the other gasket is fixedly connected to the outer wall of the plunger, and the outer wall of the plunger is sleeved with a telescopic spring located between the two gaskets.

2. The on-line detection device for gearbox gear transmission accuracy performance according to claim 1 is characterized by: The moon plate is a twelfth of a circle, and one end of the line plate away from the ten-combination seat is clamped and installed with a T-section column that is slidably clamped and installed with the moon plate.

3. The on-line detection device for gearbox gear transmission accuracy performance according to claim 2 is characterized by: The convex plate is provided with a groove at a side away from the work seat, and the electrode columns are evenly clamped and installed in an array inside the groove; the end face of the wire plate away from the axis of the shaft disk is detachably installed with an angle plate through bolts, and an electrode sheet tangent to the electrode column is clamped and installed at one end of the angle plate close to the electrode column; the warning lights electrically connected to the electrode columns are evenly distributed in an array in the middle position of the end face of the moon plate away from the axis of the shaft disk, and three lights form a group.

4. The on-line detection device for gearbox gear transmission accuracy performance according to claim 3 is characterized by: The adjustment unit also includes: A paging frame is detachably mounted on the end of the back plate away from the secondary shaft by bolts; There are two telescopic gas rods, which are symmetrically clamped and arranged at one end of the paging frame away from the opening plate.

5. The on-line detection device for gearbox gear transmission accuracy performance according to claim 4 is characterized by: The secondary shaft is distributed through the back plate, a double-headed column is embedded in the axial position of the rotating cylinder away from the back plate, a telescopic probe is installed at the axial position of the double-headed column through a spring sliding clamping fit, and a shock-absorbing seat is installed together at one end of the two telescopic gas rods away from the paging frame, and the end surfaces of the arrow plate in contact with the end plate are evenly distributed with balls installed in rolling cooperation with the arrow plate.

6. The on-line detection device for gearbox gear transmission accuracy performance according to claim 5 is characterized by: Two ring pieces are clamped and installed between the air cylinder and the air bladder, and a rubber plug is symmetrically and slidingly clamped between the two ring pieces, and the outer wall of the rubber plug is provided with a return spring located between the two ring pieces, the shock-absorbing spring is inside the rubber hose, and the air plug is made of rubber.

7. A method for online detection of transmission accuracy performance of a gearbox gear shaft, using an online detection device for transmission accuracy performance of a gearbox gear as claimed in claim 1 to perform detection, characterized in that: The specific steps are as follows: S1: First, relative movement is generated between the vertical rod and the sub-arc groove. Under the support and guidance of the end plate, the arrow plate continuously moves toward or away from the axis end of the shaft disk. At the same time, the moon plate controls the correction unit to move toward or away from the axis end of the shaft disk synchronously with the arrow plate. S2: Then, the outer ear plate is controlled by the arrow plate, and the vertical rod is synchronously driven to approach or move away from the axis end of the shaft disc under the guidance of the inner ear plate. After that, the gas plug gradually moves toward the bottom wall of the gas cylinder under the synchronous action of the vertical rod, and the gas in the gas cylinder is compressed until the telescopic spring drives the gasket to move away from the axis of the gas bladder under the further stable support of the U-mouth frame under the force exerted by the gas; S3: Finally, by sensing each polarization displacement of the ball, the detection rod drives the ten-combination seat to move. Driven by the ten-combination seat, the ball rod generates relative movement with the snake mouth slot. After that, the snake mouth slot forces the straight column to drive the helical gear to rotate at the same angle as the straight column under the support and guidance of the ear seat under the limiting action of the ball rod. In this process, the helical rack moves one end distance toward the axis of the shaft disk under the meshing transmission effect of the helical gear. When the range-extending gear meshes with the range-extending rack, the unilateral rack is controlled to drive the line plate to move away from the axis of the shaft disk under the further guidance of the convex plate. At this time, the moving distance of the unilateral rack is twice the moving distance of the range-extending rack.

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