Cone bearing and gear combination clearance detection device

Abstract

The utility model discloses a cone bearing and gear combination clearance detection device which comprises a rack, an upper sliding table mechanism, a positioning mechanism and a lower detection mechanism, the positioning mechanism is placed on a working platform of the rack, and the upper sliding table mechanism and the lower detection mechanism are respectively located above and below the working platform of the rack. The cone bearing and gear combination is positioned by a positioning mechanism. Axial force is loaded through an upper driving piece and a lower driving piece of the upper sliding table mechanism, a load is automatically applied to the cone bearing and gear combination assembly, the clearance is measured through a displacement sensor of the lower detection mechanism, data are collected, and automatic measurement of the bearing clearance value is achieved.

Description

Technical Field

[0001] This utility model relates to the field of tapered bearing clearance detection technology, and in particular to a tapered bearing and gear combination clearance detection device. Background Technology

[0002] During the assembly of a helicopter mid-tail gearbox, the clearance of the tapered bearing and gear combination needs to be measured. The traditional method for clearance testing involves fixing the tapered bearing and gear combination into a clearance testing fixture, positioning the dial indicator at the center of the shaft, manually pressing to eliminate clearance in the upper small-end bearing, adjusting the dial indicator to zero, and manually tightening the lower fixture nut to a certain lifting force. The dial indicator reading is then recorded as the measured clearance value. To achieve the specified axial clearance, multiple measurements and adjustments are required using measuring tools. If a negative clearance is specified, the bearing shim thickness must be reduced from the positive clearance setting to achieve a negative clearance. The manual clearance measurement method has the following three main shortcomings: 1) During manual measurement, differences in the operating habits, strength, and methods of different operators can easily lead to problems such as the measuring instrument not being perpendicular to the shaft center and inaccurate readings, resulting in certain errors in the measurement results; 2) Because it is a manual tightening method for loading, the axial load is not accurate; 3) Because it is a manual measurement, it is impossible to read the bearing clearance value in real time, nor can it read the maximum and minimum values; 4) The entire clearance adjustment process has a low degree of automation, long production preparation time, and low efficiency.

[0003] Chinese patent document CN 105223020 B discloses a tapered bearing testing device. This testing mechanism includes: a clamping device for pressing the tapered bearing; a positioning and lifting device for lifting the tapered bearing, the positioning and lifting device having a preload torque detection device for rotating the tapered bearing under test, and the preload torque detection device having a torque sensor for detecting the preload torque when the tapered bearing rotates; and a displacement detection device for detecting the axial displacement change between the inner and outer rings of the tapered bearing. In the above technical solution, the clamping device provides axial force to the tapered bearing under test, and the displacement detection device detects the axial displacement change between the inner and outer rings of the tapered bearing. The torque sensor detects the preload torque when the tapered bearing rotates, thereby accurately detecting the axial displacement change of the tapered bearing and whether the preload torque value meets the set requirements, improving the dynamic quality testing effect of the tapered bearing. The technical solution in this document only measures the axial displacement change between the inner and outer rings of the tapered bearing under a certain torque, which is used to predict the preload torque of the locking nut at the upper end of the tapered bearing when selecting the tapered bearing for assembly with gears, thus predicting the required axial clearance value of the bearing. The clearance value measured by this method is negative clearance and cannot measure positive clearance. Furthermore, this method cannot measure the actual axial clearance of bevel gear and bearing assembly. It is only suitable for measuring a single part of a pair of bevel bearings. The clearance value is only indirectly guaranteed by the preload torque. It is not suitable for detecting the actual clearance value of bevel bearings, gear shafts, lock nuts, and external casing assemblies. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a tapered bearing and gear combination clearance detection device with good measurement accuracy.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A device for detecting clearance of a tapered bearing and gear assembly includes a frame, an upper slide mechanism, a positioning mechanism, and a lower detection mechanism. The positioning mechanism is placed on the working platform of the frame. The upper slide mechanism and the lower detection mechanism are located above and below the working platform of the frame, respectively. The tapered bearing and gear assembly is positioned by the positioning mechanism. The upper slide mechanism includes an upper drive component, an upper sliding shaft, an upper rotating component, and an upper fixed frame. The upper fixed frame is connected to the frame. The first output end of the upper drive component is located above the upper sliding shaft and is used to drive the upper sliding shaft to move up and down. The upper sliding shaft is connected to the upper fixed frame through a cylindrical roller bearing. The upper rotating component is connected to the upper... The lower end of the sliding shaft is rotatable relative to the upper sliding shaft, and the upper rotating component is pressed onto the upper part of the tapered bearing and gear assembly; the lower detection mechanism includes a lower drive component, a lifter, a displacement sensor, a lifting frame, a lower mounting component, a lower sliding shaft, and a lower rotating component. The second output end of the lower drive component is used to drive the lifter. The lower rotating component is mounted on the lower mounting component. The upper and lower parts of the lifting frame are respectively connected to the lower sliding shaft and the lifter. The displacement sensor is located inside the lifting frame and connected to the lower mounting component. The lower rotating component is connected to the upper part of the lower sliding shaft and is rotatable relative to the lower sliding shaft. The lower part of the tapered bearing and gear assembly is pressed onto the lower rotating component.

[0007] As a further improvement to the above technical solution:

[0008] The upper fixed frame includes three parallel horizontal platforms and a vertical support plate located between adjacent horizontal platforms. The upper drive unit is connected to the uppermost horizontal platform and the first output end of the upper drive unit passes through the uppermost horizontal platform. The upper and lower parts of the upper sliding shaft are respectively connected to the bearings of the other two horizontal platforms.

[0009] The device also includes an upper mounting component connected to the bottom of the upper sliding shaft. The upper rotating component includes an upper rotating sleeve, an upper flange, and an upper tapered sleeve arranged sequentially from top to bottom. The upper rotating sleeve is rotatably connected to the upper mounting component. The upper tapered sleeve is pressed onto the upper part of the tapered bearing and gear assembly.

[0010] The upper sliding shaft includes a sliding shaft body and a shaft cover located on the upper part of the sliding shaft body, and the upper mounting part is connected to the lower part of the sliding shaft body.

[0011] The lower mounting component includes a lower support column, a fixed plate, and a lower fixing sleeve. The lower support column and the lower fixing sleeve are respectively installed on the upper and lower sides of the fixed plate. The fixed plate has a through hole in the inner circle of the lower fixing sleeve. The lower sliding shaft is connected to the lower fixing sleeve through a cylindrical roller bearing. An anti-rotation column is provided between the lifting frame and the lower fixing sleeve to prevent the lifting frame from rotating.

[0012] The lower detection mechanism also includes a sensor mounting bracket, on which the displacement sensor is mounted, and the sensor mounting bracket is connected to the lower part of the lower fixed sleeve.

[0013] The lower rotating component includes a lower cone, a countersunk cylinder, a lower sleeve, a spring, and a pressure ring. The lower cone is located inside the countersunk cylinder. The pressure ring is sleeved on the outer circumference of the lower cone and connected to the top of the countersunk cylinder. The spring is located in a blind hole at the lower part of the lower cone. The countersunk cylinder is connected to the lower sleeve through a cylindrical roller bearing. The lower sleeve is connected to the upper part of the lower sliding shaft.

[0014] The lower detection mechanism also includes a coupling, and the lower drive component drives the lifting device through the coupling.

[0015] The device also includes an upper tooling mechanism and a lower tooling mechanism, which are respectively provided with an upper center and a lower center, and the upper center and the lower center are respectively installed on the upper rotating part and the lower rotating part.

[0016] Compared with the prior art, the advantages of this utility model are:

[0017] This utility model discloses a clearance detection device for a tapered bearing and gear assembly. It automatically applies axial force to the tapered bearing and gear assembly via upper and lower drive components, and directly measures the clearance using a displacement sensor. This data collection enables automatic measurement of the bearing clearance value. This measurement method offers high accuracy (up to 0.002 mm), high repeatability, and high efficiency. This utility model can measure the clearance of a tapered bearing and gear assembly by applying a certain axial force from both above and below, satisfying the requirements for positive axial clearance measurement of tapered bearings, gear shafts, lock nuts, and external housings in their combined state. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the clearance detection device for the tapered bearing and gear combination of this utility model.

[0019] Figure 2 This is the front view of the clearance detection device for the tapered bearing and gear combination of this utility model.

[0020] Figure 3 This is a side view of the clearance detection device for the tapered bearing and gear combination of this utility model.

[0021] Figure 4 This is a cross-sectional view of the clearance detection device for tapered bearing and gear combination of this utility model.

[0022] Figure 5 This is a three-dimensional structural diagram of the upper sliding platform mechanism of this utility model.

[0023] Figure 6This is a three-dimensional structural schematic diagram of the upper sliding platform mechanism of this utility model from another perspective.

[0024] Figure 7 This is the front view of the upper sliding platform mechanism of this utility model.

[0025] Figure 8 This is a side view of the upper sliding platform mechanism of this utility model.

[0026] Figure 9 This is a three-dimensional structural diagram of the detection mechanism of this utility model.

[0027] Figure 10 This is a three-dimensional structural schematic diagram of the detection mechanism under this utility model from another perspective.

[0028] Figure 11 This is the front view of the detection mechanism of this utility model.

[0029] Figure 12 This is a side view of the sliding platform mechanism of this utility model.

[0030] Figure 13 yes Figure 11 A magnified view of a portion of point A in the middle.

[0031] Figure 14 This is a schematic diagram of the positioning mechanism of this utility model.

[0032] Figure 15 This is a schematic diagram of the structure of the tapered bearing and gear assembly of this utility model.

[0033] Figure 16 This is a structural schematic diagram of the upper tapered bearing of this utility model.

[0034] The labels in the diagram represent:

[0035] 1. Frame; 11. Working platform; 2. Upper slide mechanism; 21. Upper drive component; 211. First output end; 22. Upper sliding shaft; 221. Shaft cover; 222. Sliding shaft body; 23. Upper mounting component; 24. Upper rotating component; 241. Upper rotating sleeve; 242. Upper flange; 243. Upper tapered sleeve; 27. Upper fixed frame; 271. Horizontal platform; 272. Vertical support plate; 3. Tapered bearing and gear assembly; 31. Gear shaft; 32. Casing; 33. Lower tapered bearing; 34. Upper tapered bearing; 35. Flange; 36. Locking nut; 4. Positioning mechanism; 6. Lower inspection Measuring mechanism; 61. Lower rotating part; 611. Lower cone; 612. Countersunk cylinder; 613. Lower sleeve; 614. Spring; 615. Pressure ring; 62. Lower sliding shaft; 63. Lower mounting part; 631. Lower support column; 632. Fixed plate; 633. Lower fixed sleeve; 64. Lifting frame; 65. Displacement sensor; 66. Anti-rotation column; 67. Sensor mounting bracket; 68. Lifter; 69. Lower driving part; 691. Second output end; 5. Upper tooling mechanism; 51. Upper side plate; 52. Upper center; 7. Lower tooling mechanism; 71. Lower side plate; 72. Lower center; 9. Cylinder. Detailed Implementation

[0036] The present invention will be further described in detail below. Unless otherwise specified, the instruments or materials used in the present invention are commercially available.

[0037] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0038] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] like Figures 1 to 16As shown, the tapered bearing and gear combination clearance detection device of this embodiment includes a frame 1, an upper slide mechanism 2, a positioning mechanism 4, and a lower detection mechanism 6. The positioning mechanism 4 is placed on the working platform 11 of the frame 1. The upper slide mechanism 2 and the lower detection mechanism 6 are located above and below the working platform 11 of the frame 1, respectively. The upper slide mechanism 2 includes an upper driving member 21, an upper sliding shaft 22, an upper rotating member 24, and an upper fixed frame 27. The upper fixed frame 27 is connected to the frame 1. The first output end 211 of the upper driving member 21 is located above the upper sliding shaft 22 and is used to drive the upper sliding shaft 22 to move up and down. The upper sliding shaft 22 is connected to the upper fixed frame 27 through a cylindrical roller bearing. The upper rotating member 24 is connected to... Located at the lower end of the upper sliding shaft 22 and rotatable relative to it, the tapered bearing and gear assembly 3 includes a gear shaft 31, a housing 32, a lower tapered bearing 33, an upper tapered bearing 34, a flange 35, and a locking nut 36. The gear shaft 31 is located inside the housing 32. The upper outer wall of the gear shaft 31 is connected to the inner wall of the housing 32 via the upper tapered bearing 34, and the lower outer wall of the gear shaft 31 is connected to the inner wall of the housing 32 via the lower tapered bearing 33. The gear of the gear shaft 31 is located at the lower end. A flange 35 is fitted onto the outer peripheral wall of the upper end of the gear shaft. The flange 35 is tapered with its opening facing upwards. The flange 35 is fixed to the gear shaft by the locking nut 36 fitted onto the outer peripheral wall of the upper end of the gear shaft (e.g., ...). Figure 15 , Figure 16(As shown). The upper rotating part 24 is pressed onto the upper part of the gear shaft 31 in the tapered bearing and gear assembly 3; when the upper slide mechanism 2 moves downward, the tapered bearing and gear assembly 3 is fixed on the lower detection mechanism 6, the housing 32 in the tapered bearing and gear assembly 3 is in a stationary state, the housing 32 is positioned by the positioning mechanism 4, and the lower detection mechanism 6 plays a fixing role. The lower detection mechanism 6 includes a lower drive component 69, a lifter 68, a displacement sensor 65, a lifting frame 64, a lower mounting component 63, a lower sliding shaft 62, and a lower rotating component 61. The second output end 691 of the lower drive component 69 drives the lifter 68. The lower rotating component 61 is mounted on the lower mounting component 63. The upper and lower parts of the lifting frame 64 are connected to the lower sliding shaft 62 and the lifter 68, respectively. The displacement sensor 65 is located inside the lifting frame 64 and connected to the lower mounting component 63. The lower rotating component 61 is connected to the upper part of the lower sliding shaft 62 and is rotatable relative to the lower sliding shaft 62. The lower part of the gear shaft 31 in the tapered bearing and gear assembly 3 is pressed onto the lower rotating component 61. The lifter 68 is fixed on the frame 1, and the output shaft of the lifter 68 drives the lifting frame 64 to move up and down. After the upper sliding mechanism 2 applies an axial force, the lower detection mechanism 6 applies an upward axial force. This axial force acts on the gear of the gear shaft 31 in the tapered bearing and gear assembly 3. The housing 32 remains stationary, while the tapered bearing and gear assembly 3 moves upward. The movement value is the measured positive clearance. This invention automatically applies a load to the tapered bearing and gear assembly 3 by applying axial force through the upper drive component 21 and the lower drive component 69, and directly measures the clearance through the displacement sensor 65, collecting data to achieve automatic measurement of the bearing clearance value. This measurement method has high measurement accuracy (up to 0.002mm), high repeatability, and high efficiency. This invention measures the clearance of the tapered bearing and gear assembly by applying a certain axial force from above and below, satisfying the measurement of positive axial clearance in the combined state of the tapered bearing, gear shaft, locking nut, and external housing.

[0040] The positioning mechanism 4 is used to position and clamp the housing 32 in the tapered bearing and gear assembly 3 of the mid-tail reducer, facilitating automatic docking and measurement between various testing devices and the reducer. The upper drive component 21 and the lower drive component 69 are responsible for applying axial load to the shaft system to meet the product process requirements.

[0041] The upper slide mechanism 2 can be raised and lowered relative to the frame 1, which allows for the reserved stroke for installing the part to be measured. It can meet the clearance detection of different axial height tapered bearings and gear combinations of input gear assemblies or output gear assemblies of different models of products, so that the equipment has a flexible change function.

[0042] In this embodiment, the frame 1 is provided with a slide rail in the vertical direction, and the upper fixed frame 27 is provided with a slider. The slider is slidably connected to the slide rail. The upper fixed frame 27 is driven to move up and down along the slide rail by a driving component (not shown in the figure). In this way, the upper sliding platform mechanism 2 is lifted and lowered as a whole. In order to make the movement of the upper sliding platform mechanism 2 more stable during lifting and lowering, a guide rod is provided below the top of the frame 1, and a guide hole is opened on the upper fixed frame 27 for the guide rod to pass through, thus realizing the guiding function.

[0043] like Figure 5 As shown, the upper fixed frame 27 includes three parallel horizontal platforms 271 and vertical support plates 272 located adjacent to each other between the horizontal platforms 271. The upper drive member 21 is connected to the uppermost horizontal platform 271 and the first output end 211 of the upper drive member 21 passes through the uppermost horizontal platform 271. The upper and lower parts of the upper sliding shaft 22 are respectively connected to the other two horizontal platforms 271 through oilless bearings.

[0044] like Figure 5 As shown, in this embodiment, the first output end 211 of the upper drive unit 21 is connected to a servo cylinder connector, and the servo cylinder connector and the upper sliding shaft 22 are spaced apart.

[0045] like Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, in this embodiment, the device further includes an upper mounting member 23, which is connected to the bottom of the upper sliding shaft 22. The upper rotating member 24 includes an upper rotating sleeve 241, an upper flange 242, and an upper tapered sleeve 243 arranged sequentially from top to bottom. The upper rotating sleeve 241 is rotatably connected to the upper mounting member 23. The upper tapered sleeve 243 presses against the upper part of the gear shaft 31 in the tapered bearing and gear assembly 3 for accurate centering. The upper flange 242 is responsible for pressing the flange 35 in the tapered bearing and gear assembly 3 from above. Figure 4 The flange 35 is shown in the diagram. It transmits the applied axial load and allows the tapered bearing balls to fit tightly against the inner tapered surface of the outer ring of the bearing, thereby eliminating the bearing's own clearance.

[0046] like Figure 7 As shown, a cylindrical pin is provided on the outer circumference of the upper mounting part 23. The upper and lower ends of the cylindrical pin are located on the lowest horizontal platform 271 and inside the upper mounting part 23, respectively. When the upper rotating part 24 rotates, the cylindrical pin prevents the upper mounting part 23 from rotating.

[0047] like Figure 7 As shown, in this embodiment, the upper sliding shaft 22 includes a sliding shaft body 222 and a shaft cover 221 located on the upper part of the sliding shaft body 222. The upper mounting member 23 is connected to the lower part of the sliding shaft body 222. The shaft cover 221 can slide on the upper fixed frame 27, transmit axial force, and drive the sliding shaft body 222 to move.

[0048] The upper mounting part 23 is connected to the sliding shaft body 222.

[0049] like Figure 9 As shown, the lower mounting component 63 includes a lower support column 631, a fixed plate 632, and a lower fixing sleeve 633. The lower support column 631 and the lower fixing sleeve 633 are respectively installed on the upper and lower sides of the fixed plate 632. The fixed plate 632 has a through hole in the inner circle of the lower fixing sleeve 633. The lower sliding shaft 62 is connected to the lower fixing sleeve 633 through a cylindrical roller bearing. An anti-rotation column 66 is provided between the lifting frame 64 and the lower fixing sleeve 633 to prevent the lifting frame 64 from rotating. The tapered bearing and gear assembly 3 enters the detection device by a tray-type push-in and sinks after entering the position. After the measurement is completed, the cylinders 9 on both sides of the positioning mechanism 4 push up, moving the tray to a horizontal position to facilitate manual removal of the tray and parts. The tray pushing in and taking out can be achieved by conventional technical means, which will not be described in detail here.

[0050] The middle part of the lower mounting component 63 is the movable part, and the lower fixed sleeve 633 is the supporting component. During operation, the lower fixed sleeve 633 and the end face of the casing 323 remain stationary, while the central components such as the lifting frame 64 and the pressure ring 615 move upward with the motor. The lower side plate 71 is responsible for pressing the tapered bearing and gear assembly 3 from below, ensuring that the inner ring balls of the bearing are in close contact with the inner tapered surface of the outer ring of the bearing. The lower side plate 71 directly supports the lower end of the gear.

[0051] like Figures 9 to 12 As shown, the lower detection mechanism 6 also includes a sensor mounting bracket 67, on which the displacement sensor 65 is mounted. The sensor mounting bracket 67 is connected to the lower part of the lower fixing sleeve 633.

[0052] like Figure 13 As shown, the lower rotating component 61 includes a lower cone 611, a countersunk cylinder 612, a lower sleeve 613, a spring 614, and a pressure ring 615. The lower cone 611 is located inside the countersunk cylinder 612. The pressure ring 615 is sleeved on the outer circumference of the lower cone 611 and connected to the top of the countersunk cylinder 612. The spring 614 is located in a blind hole at the lower part of the lower cone 611. The countersunk cylinder 612 is connected to the lower sleeve 613 through a cylindrical roller bearing. The lower sleeve 613 is connected to the upper part of the lower sliding shaft 62. The lower rotating component 61 is used to rotate the flange 3525.

[0053] The lower detection mechanism 6 also includes a coupling (not shown in the figure), and the lower drive component 69 drives the lift 68 through the coupling.

[0054] The device also includes a motor mounting bracket (not shown in the figure), which is mounted on the housing of the lifter 68, and the lower drive unit 69 is connected to the lifter 68 through the motor mounting bracket.

[0055] like Figure 4As shown, the device also includes an upper tooling mechanism 5 and a lower tooling mechanism 7. The upper tooling mechanism 5 and the lower tooling mechanism 7 are respectively provided with an upper center 52 and a lower center 72, which are respectively installed on the upper rotating part 24 and the lower rotating part 61. The upper tooling mechanism 5 and the lower tooling mechanism 7 are also respectively provided with an upper side plate 51 and a lower side plate 71. When the upper flange 242 or the fixed plate 632 cannot press the tapered bearing and gear assembly 3 tightly, the upper side plate 51 is placed between the tapered bearing and gear assembly 3 and the upper flange 242, and the lower side plate 71 is placed between the fixed plate 632 and the tapered bearing and gear assembly 3 to facilitate pressing the tapered bearing and gear assembly 3.

[0056] The method of using this utility model device includes the following steps:

[0057] 1) Manually push the product into the positioning mechanism 4 of the reducer for positioning and clamping;

[0058] 2) The upper sliding platform mechanism 2 descends into place;

[0059] 3) The upper drive component 21 is loaded with the first preset loading force to eliminate the clearance of the upper tapered bearing 34;

[0060] 4) The lower drive unit 69 applies a second preset loading force, causing the displacement sensor 65 to fit against the measuring end face, and the displacement sensor 65 reads the value L1.

[0061] 5) The lower drive component 69 applies a third preset loading force, causing the inner rings of the two tapered bearings (lower tapered bearing 33 and upper tapered bearing 34) to move together with the gear shaft 31 in the vertical upward axial force as required by the design.

[0062] 6) Read the data from displacement sensor 65, L2;

[0063] 7) Measurement complete, lower drive component 69 resets, upper drive component 21 resets;

[0064] 8) Rotate the flange 35 by 120° and repeat measurement steps 2)-7). In this embodiment, a total of three measurements are taken.

[0065] 9) After the measurement is completed, the upper slide mechanism 2 is reset.

[0066] In this embodiment, the first and third preset loading forces are 200 kg, and the second preset loading force is 100 kg. In other embodiments, the loading forces are adjusted according to actual needs.

[0067] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A device for detecting clearance of a tapered bearing and gear assembly, comprising a frame (1), an upper slide mechanism (2), a positioning mechanism (4), and a lower detection mechanism (6), wherein the positioning mechanism (4) is placed on the working platform (11) of the frame (1), the upper slide mechanism (2) and the lower detection mechanism (6) are respectively located above and below the working platform (11) of the frame (1), and the tapered bearing and gear assembly (3) is positioned by the positioning mechanism (4), characterized in that: The upper slide mechanism (2) includes an upper drive member (21), an upper sliding shaft (22), an upper rotating member (24), and an upper fixed frame (27). The upper fixed frame (27) is connected to the frame (1). The first output end (211) of the upper drive member (21) is located above the upper sliding shaft (22) and is used to drive the upper sliding shaft (22) to move up and down. The upper sliding shaft (22) is connected to the upper fixed frame (27) through a cylindrical roller bearing. The upper rotating member (24) is connected to the lower end of the upper sliding shaft (22) and is rotatable relative to the upper sliding shaft (22). The upper rotating member (24) is pressed on the upper part of the tapered bearing and gear assembly (3). The lower detection mechanism (6) includes a lower drive component (69), a lifter (68), a displacement sensor (65), a lifting frame (64), a lower mounting component (63), a lower sliding shaft (62), and a lower rotating component (61). The second output end (691) of the lower drive component (69) is used to drive the lifter (68). The lower rotating component (61) is mounted on the lower mounting component (63). The upper and lower parts of the lifting frame (64) are connected to the lower sliding shaft (62) and the lifter (68) respectively. The displacement sensor (65) is located inside the lifting frame (64) and is connected to the lower mounting component (63). The lower rotating component (61) is connected to the upper part of the lower sliding shaft (62) and is rotatable relative to the lower sliding shaft (62). The lower part of the tapered bearing and gear assembly (3) is pressed onto the lower rotating component (61).

2. The tapered bearing and gear combination backlash detection device of claim 1, wherein: The upper fixed frame (27) includes three parallel horizontal platforms (271) and a vertical support plate (272) located between adjacent horizontal platforms (271). The upper drive member (21) is connected to the uppermost horizontal platform (271) and the first output end (211) of the upper drive member (21) passes through the uppermost horizontal platform (271). The upper and lower parts of the upper sliding shaft (22) are respectively connected to the bearings of the other two horizontal platforms (271).

3. The tapered bearing and gear combination backlash detection device of claim 2, wherein: The device also includes an upper mounting component (23), which is connected to the bottom of the upper sliding shaft (22). The upper rotating component (24) includes an upper rotating sleeve (241), an upper flange (242), and an upper tapered sleeve (243) arranged sequentially from top to bottom. The upper rotating sleeve (241) is rotatably connected to the upper mounting component (23), and the upper tapered sleeve (243) is pressed onto the upper part of the tapered bearing and gear assembly (3).

4. The tapered bearing and gear combination backlash detection device of claim 3, wherein: The upper sliding shaft (22) includes a sliding shaft body (222) and a shaft cover (221) located on the upper part of the sliding shaft body (222). The upper mounting part (23) is connected to the lower part of the sliding shaft body (222).

5. The tapered bearing and gear combination misalignment detection device of claim 1, wherein: The lower mounting component (63) includes a lower support column (631), a fixed plate (632), and a lower fixing sleeve (633). The lower support column (631) and the lower fixing sleeve (633) are respectively installed on the upper and lower sides of the fixed plate (632). The fixed plate (632) has a through hole in the inner circle of the lower fixing sleeve (633). The lower sliding shaft (62) is connected to the lower fixing sleeve (633) through a cylindrical roller bearing. An anti-rotation column (66) is provided between the lifting frame (64) and the lower fixing sleeve (633) to prevent the lifting frame (64) from rotating.

6. The tapered bearing and gear combination backlash detection device of claim 5, wherein: The lower detection mechanism (6) also includes a sensor mounting bracket (67), on which the displacement sensor (65) is mounted. The sensor mounting bracket (67) is connected to the lower part of the lower fixing sleeve (633).

7. The tapered bearing and gear combination backlash detection device of claim 6, wherein: The lower rotating component (61) includes a lower cone (611), a countersunk cylinder (612), a lower sleeve (613), a spring (614), and a pressure ring (615). The lower cone (611) is located inside the countersunk cylinder (612). The pressure ring (615) is sleeved on the outer circumference of the lower cone (611) and connected to the top of the countersunk cylinder (612). The spring (614) is located in the blind hole at the lower part of the lower cone (611). The countersunk cylinder (612) is connected to the lower sleeve (613) through a cylindrical roller bearing. The lower sleeve (613) is connected to the upper part of the lower sliding shaft (62).

8. The tapered bearing and gear combination backlash detection device of claim 1, wherein: The lower detection mechanism (6) also includes a coupling, and the lower drive component (69) drives the lifter (68) through the coupling.

9. The tapered bearing and gear combination misalignment detection device of claim 1, wherein: The device also includes an upper tooling mechanism (5) and a lower tooling mechanism (7), the upper tooling mechanism (5) and the lower tooling mechanism (7) are respectively provided with an upper center point (52) and a lower center point (72), the upper center point (52) and the lower center point (72) are respectively installed on the upper rotating part (24) and the lower rotating part (61).

Images