Synchronizer intermediate ring detection device

Abstract

The invention discloses a synchronizer intermediate ring detection device. The synchronizer intermediate ring detection device comprises a first gravity loading assembly, a second gravity loading assembly and a third gravity loading assembly, the lifting driver is used for driving the first gravity loading assembly to lift; the first gravity loading assembly is provided with a first receding hole, and the second gravity loading assembly penetrates through the first receding hole, so that two parts of the second gravity loading assembly are distributed on the two sides of the first gravity loading assembly; the supporting assembly is matched with the inner circumferential surface of the middle ring to support the middle ring; the first measuring part is used for detecting the displacement of the first gravity loading assembly after the gravity of the first gravity loading assembly is loaded to the middle ring; and the second measuring part is used for detecting the displacement of the second gravity loading assembly after the gravity of the second gravity loading assembly is loaded to the middle ring. The method is accurate in detection and high in efficiency.

Description

Technical Field

[0001] The invention relates to the field of synchronizers, and in particular to a detection device for an intermediate ring of a synchronizer. Background Art

[0002] In the synchronizer, there are synchronizer cones and synchronizer rings that are used together. The synchronizer cone is integrally provided with a cone ring. During use, after the synchronizer ring is matched with the synchronizer cone, the inner wall of the synchronizer ring fits with the outer wall of the cone ring. At the same time, the synchronizer ring is subjected to axial extrusion force. At this time, the friction force between the two causes the two to rotate synchronously. During use, the friction torque between the two needs to meet certain requirements, otherwise slipping will occur during operation, which will affect the operation of the synchronizer.

[0003] Obviously, the larger the combined area between the synchronizer ring and the synchronizer cone, the greater the friction between the two. For the manufactured synchronizer ring, it is usually necessary to test it to determine whether the combination between the synchronizer ring and the synchronizer cone meets the design requirements. The test parameter is to check the axial feed amount of the synchronizer ring to the synchronizer cone.

[0004] The existing detection method is to put the synchronizer ring on the synchronizer cone, use a standard pressure block to put it on the synchronizer ring to provide pressure to the synchronizer ring, and detect the above feed amount through a three-coordinate measuring machine. However, this detection method can only detect the friction between the inner wall of the synchronizer ring and the synchronizer cone. In actual use, the outer peripheral surface of the synchronizer ring will also be subjected to force, which will cause a slight displacement of the synchronizer ring when the outer peripheral surface is subjected to force, and the above detection method cannot detect the slight displacement. Therefore, the existing detection method is usually estimated based on the measurement structure of the three-coordinate measuring machine, which leads to inaccurate detection. In addition, it usually takes about 5 minutes for the three-coordinate measuring machine to detect an intermediate ring, and the detection time is relatively long. Summary of the invention

[0005] The invention provides a detection device for a synchronizer intermediate ring, which has accurate detection and high efficiency.

[0006] The detection device of the synchronizer intermediate ring comprises:

[0007] a first gravity loading assembly for applying gravity to the outer peripheral surface of the intermediate ring;

[0008] A lifting driver for driving the first gravity loading component to lift, the first gravity loading component being movably connected to the output end of the lifting driver, and causing the gravity of the first gravity loading component to be loaded onto the outer peripheral surface of the intermediate ring when the first gravity loading component cooperates with the intermediate ring;

[0009] A second gravity loading component, wherein the first gravity loading component is provided with a first clearance hole, and the second gravity loading component passes through the first clearance hole, so that two parts of the second gravity loading component are distributed on both sides of the first gravity loading component, and after the second gravity loading component is combined with the axial end face of the intermediate ring, the gravity of the second gravity loading component is loaded onto the axial end face of the intermediate ring;

[0010] A supporting assembly cooperates with the inner circumference of the intermediate ring to support the intermediate ring;

[0011] A first measuring component for detecting a displacement of the first gravity loading component after the gravity of the first gravity loading component is loaded onto the intermediate ring;

[0012] A second measuring component for detecting the displacement of the second gravity-loading assembly after the gravity of the second gravity-loading assembly is loaded onto the intermediate ring.

[0013] In the present invention, the second gravity loading component applies pressure to the axial end face (upper end) of the intermediate ring to be measured for the first time, and the second measuring component measures the axial displacement value of the second gravity loading component. When the second gravity loading component cannot continue to apply pressure to the intermediate ring, the first gravity loading component then applies pressure to the outer peripheral surface of the intermediate ring to be measured for the second time, and the first measuring component measures the axial displacement value of the first gravity loading component. The sum of the axial displacement values ​​measured by the first measuring component and the second measuring component is the overall axial displacement of the intermediate ring.

[0014] The present invention has a simple operation process when measuring the intermediate ring, and the detection result is accurate without estimation, and the entire detection time only takes about 1 minute, which is greatly shortened compared with the tripod measuring instrument, and the detection efficiency is improved. In addition, the detection device of the present invention has low cost and is easy to manufacture. After mass production, it can be widely used in synchronizer production lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a stereoscopic diagram of the detection device of the synchronizer intermediate ring.

[0016] Figure 2 For Figure 1 A schematic diagram with some parts hidden on the basis of the model.

[0017] Figure 3 It is a cross-sectional view of the detection device of the synchronizer intermediate ring formed along the first cutting direction.

[0018] Figure 4 It is a cross-sectional view of the detection device of the synchronizer intermediate ring formed along the second cutting direction.

[0019] Figure 5 for Figure 4 Enlarged view of part P in .

[0020] Markings in the attached drawings:

[0021] Intermediate ring A, first measuring component C1, second measuring component C2, pressure plate 1, linear bearing 1a, first make way hole 1b, second make way hole 1c, connecting frame 2, connecting column 2a, connecting plate 2b, through hole 2c, connecting ring 3, pressure ring 4, counterweight 5, linear guide group 6, bracket 7, bottom plate 7a, top plate 7b, support column 7c, lifting drive component 8, cylinder body 8a, piston rod 8b, limiting component 9, movable frame 10, guide rod 11, pressure block 12, slide rail 10a, make way cavity 10b, support seat 13, standard mounting seat 14, pressure rod 15. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential” and the like to indicate orientations or positional relationships, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] like Figures 1 to 5 As shown, the detection device of the synchronizer intermediate ring of the present invention includes a first gravity loading component, a lifting drive, a second gravity loading component, a supporting component, a first measuring component C1, and a second measuring component C2. The various components and the relationship between them are described in detail below.

[0028] The first gravity loading component applies gravity to the outer peripheral surface of the intermediate ring A. The first gravity loading component includes a pressure plate 1, a connecting frame 2, a connecting ring 3, and a pressure ring 4 used to combine with the outer peripheral surface of the intermediate ring A. The connecting frame 2 is located at one end of the pressure plate 1 and is fixed to the pressure plate 1. The connecting frame 2 is clearance-matched with the power output end of the lifting drive, that is, the connecting frame 2 has no fixed relationship with the power output end of the lifting drive. In the present invention, the connecting frame 2 is composed of a connecting column 2a and a connecting plate 2b. One end of the connecting column 2a is fixed to the connecting plate 2b, and the other end of the connecting column 2a is fixed to the pressure plate 1. A through hole 2c is provided on the connecting plate 2b. The power output end of the lowering drive passes through the through hole on the connecting plate 2b and is clearance-matched with the through hole 2c. The connecting ring 3 is located at the other end of the pressure plate 1 and is fixed to the pressure plate 1. The pressure ring 4 is fixed to the connecting ring 3. The pressure ring 4 is used to cooperate with the outer peripheral surface of the intermediate ring A.

[0029] The first gravity loading assembly also includes a linear guide assembly 6, which is fixed to the pressure plate 1, and both ends of the second gravity loading assembly are slidably matched with the linear guide assembly 6. The linear guide assembly 6 is composed of a mounting seat and a guide rail, the mounting seat is L-shaped, the mounting seat is fixed to the pressure plate 1, and the guide rail is fixed to the mounting seat. The second gravity loading assembly moves linearly along the linear guide assembly 6.

[0030] Since the entire first gravity loading assembly applies gravity to the intermediate ring A, the gravity required to be loaded is also different for different intermediate rings A. In order to make the gravity value of the first gravity loading assembly accurate, for example, a gravity of 300N is required, and the sum of the gravity of the pressure plate 1 and the connecting frame 2, the connecting ring 3, the pressure ring 4, and the linear guide group 6 is difficult to control to a precise value. Therefore, on the one hand, in order to make the gravity value of the first gravity loading assembly accurate, and on the other hand, to meet the needs of different intermediate rings A, the first gravity loading assembly in the present invention also includes a counterweight 5. The pressure plate 1 is provided with a blind hole, and the counterweight 5 is located in the blind hole. The counterweight 5 can not only accurately compensate for the gravity difference of the sum of the gravity of the pressure plate 1 and the connecting frame 2, the connecting ring 3, the pressure ring 4, and the linear guide group 6, but also when testing different intermediate rings A, it is sufficient to replace the counterweight 5 with different weights.

[0031] The lifting drive drives the first gravity loading component to lift and lower. The first gravity loading component is movably connected to the output end of the lifting drive. When the first gravity loading component cooperates with the intermediate ring A, the gravity of the first gravity loading component is loaded onto the outer peripheral surface of the intermediate ring.

[0032] In the present invention, the lifting drive includes a bracket 7, a lifting drive component 8, and a limiting component 9 that provides support for the first gravity loading component. The lifting drive component 8 is fixed on the bracket 7, and the power output end of the lifting drive component 8 is connected to the limiting component 9. The first gravity loading component and the power output end of the lifting drive component 8 are clearance-matched.

[0033] The bracket 7 includes a bottom plate 7a, a top plate 7b, and a support column 7c. One end of the support column 7c is fixed to the bottom plate 7a, and the other end of the support column 7c is fixed to the top plate 7b. The lifting drive component 8 can be a linear drive component such as a cylinder or a hydraulic cylinder. In this embodiment, the lifting drive component 8 preferably uses a cylinder. The cylinder body 8a of the cylinder is fixed to the top plate 7b. The piston rod 8b of the cylinder passes through the top plate 7b and is fixed to the limiting component 9. In the present invention, the limiting component 9 is composed of a nut and a gasket. The nut is threadedly connected to the piston rod 8b of the lifting drive component 8. The gasket is sleeved on the piston rod 8b of the lifting drive component 8 and supported by the nut. The piston rod 8b of the lifting drive component 8 passes through the through hole 2c on the connecting frame 2 and is in clearance fit with the through hole 2c. The limiting component 9 supports the connecting frame 2.

[0034] The first gravity loading component in the present invention also includes a linear bearing 1a, which is fixed to the pressure plate 1, and the support column 7c passes through the linear bearing 1a and slides with the linear bearing 1a. Through the guiding effect of the linear bearing 1a and the support column 7c, the first gravity loading component can perform linear motion.

[0035] The first gravity loading component is provided with a first clearance hole 1b, and the first clearance hole 1b is set on the pressure plate 1. The second gravity loading component passes through the first clearance hole 1b, so that two parts of the second gravity loading component are distributed on both sides of the first gravity loading component. After the second gravity loading component is combined with the axial end face of the intermediate ring A, the gravity of the second gravity loading component is loaded onto the axial end face of the intermediate ring A.

[0036] The second gravity loading assembly includes a movable frame 10, a guide rod 11, and a pressure block 12 for combining with the axial end face of the intermediate ring A. The movable frame 10 is located on one side of the first gravity loading assembly, and the pressure block 12 is located on the other side of the first gravity loading assembly, that is, the movable frame 10 is located on the upper side of the pressure plate 1, and the pressure block 12 is located on the lower side of the pressure plate 1. One end of the guide rod 11 is fixed to the movable frame 10, and the other end of the guide rod 11 passes through the first clearance hole 1b on the first gravity loading assembly and is fixed to the pressure block 12. The pressure block 12 is disc-shaped, and the guide rod 11 and the first clearance hole 1b are clearance-matched. The number of the guide rod 11 and the first clearance hole 1b are both multiple. This structure can make the second gravity loading assembly move up and down relative to the first gravity loading assembly.

[0037] The second gravity loading assembly also includes a slide rail 10a for slidingly cooperating with the first gravity loading assembly. The slide rails 10a are fixed at both ends of the movable frame 10, and the slide rails 10a are slidably cooperating with the linear guide group 6. When the second gravity loading assembly is lifted and lowered, the slide rails 10a and the linear guide group 6 guide the second gravity loading assembly so that the second gravity loading assembly is lifted and lowered along a straight line to ensure that the axial end face of the pressing block 12 is in contact with the axial end face of the intermediate ring A.

[0038] A clearance cavity 10b is provided on the movable frame 10, and the inner diameter of the clearance cavity 10b is larger than the outer diameter of the limiting component 9. When the piston rod 8b of the lifting drive component 8 moves downward, the piston rod 8b and the limiting component 9 enter the clearance cavity 10b, so that the clearance cavity 10b makes way for the piston rod 8b and the limiting component 9, so that the gravity of the first gravity loading component is loaded onto the outer peripheral surface of the intermediate ring A.

[0039] The support assembly cooperates with the inner circumference of the intermediate ring A to support the intermediate ring A. The support assembly includes a support seat 13 and a standard mounting seat 14. The support seat 13 is fixed on the bottom plate 7a. One end of the standard mounting seat 14 is fixed to the support seat 13. The other end of the standard mounting seat 14 is provided with a conical surface for cooperating with the intermediate ring A. The taper of the conical surface on the standard mounting seat 14 simulates the synchronous cone in the background technology. The standard mounting seat 14 is composed of a standard seat and a mounting support. The conical surface is arranged on the standard seat. The standard seat and the mounting support are fixed by screws. The mounting support is fixed to the support seat 13 by screws. For intermediate rings with different inner diameters, the standard seat matching them can be replaced.

[0040] After the gravity of the first gravity loading component is loaded onto the middle ring, the first measuring component C1 for detecting the displacement of the first gravity loading component can be a dial indicator, a micrometer, a grating ruler, etc. In the present invention, the first measuring component C1 preferably uses a micrometer. After the first gravity loading component is lowered, pressure is applied to the probe of the first measuring component C1. After the pressure plate 1 in the first gravity loading component loads the pressure onto the probe of the micrometer, the micrometer detects the displacement loaded by the first gravity loading component.

[0041] A second measuring component C2 is used to detect the displacement of the second gravity loading component after the gravity of the second gravity loading component is loaded onto the intermediate ring. The second measuring component C2 can be a dial indicator, a micrometer, a grating ruler, etc. In the present invention, the second measuring component C2 preferably uses a micrometer. The first gravity loading component is provided with a second clearance hole 1c. After the second gravity loading component is lowered, the probe of the second measuring component C2 is passively passed through the second clearance hole 1c, and the second gravity loading component applies pressure to the second measuring component. In the present invention, the second gravity loading component also includes a pressure rod 15, the pressure rod 15 and the second clearance hole 1c are clearance-matched, the axis of the second clearance hole 1c, the axis of the pressure rod 15 and the axis of the probe of the second measuring component C2 are located on the same straight line, when the first gravity loading component and the second gravity loading component are lowered, the pressure rod 15 finally loads pressure on the probe of the second measuring component C2, and the second measuring component C2 forms a detection of the displacement loaded by the second gravity loading component.

[0042] The working process of the present invention is as follows:

[0043] S1. Put the intermediate ring A on the standard mounting seat 14, and use a spirit level to check whether the upper end of the intermediate ring A is in a horizontal state. If the intermediate ring A is not in a horizontal state, manually adjust the upper end of the intermediate ring A to a horizontal state. At this time, the inner circumference of the intermediate ring A and the outer circumference of the standard mounting seat 14 initially form a clearance fit, and the upper end of the intermediate ring A is located above the upper end of the standard mounting seat 14. Preferably, the distance between the upper end of the intermediate ring A and the upper end of the standard mounting seat 14 is, for example, 1 mm.

[0044] S2, the piston rod 8b of the lifting drive component 8 descends and feeds toward the support assembly, the first gravity loading assembly feeds toward the support assembly, and the second gravity loading assembly feeds toward the support assembly together with the first gravity loading assembly. As the feeding amount increases, the pressure ring 4 first gradually surrounds the intermediate ring A, but the pressure ring 4 does not yet form contact or fit with the intermediate ring A, and the axial end face of the pressure block 12 forms a fit with the axial end face of the intermediate ring A. At this time, the gravity of the second gravity loading assembly is loaded onto the intermediate ring A, and the standard mounting seat 14 moves along the axial direction of the standard mounting seat 14 under the gravity of the second gravity loading assembly.

[0045] As the piston rod 8b of the lifting drive component 8 continues to descend, the upper end of the intermediate ring A is pressed flush with the upper end of the standard mounting seat 14 under the action of the pressure block 12. At this time, the second gravity loading assembly can no longer cause the intermediate ring A to move axially, but there is still a slight gap between the intermediate ring A and the standard mounting seat 14. In the above process, the pressure rod 15 applies pressure to the probe of the second measuring component C2, and the second measuring component C2 detects the displacement amount loaded by the second gravity loading assembly.

[0046] S3, the piston rod 8b of the lifting drive component 8 descends. At this time, the first gravity loading component continues to descend, and because the pressure block 12 in the second gravity loading component forms a butt with the upper end surface of the standard mounting seat 14, the second gravity loading component stops moving, and the first gravity loading component moves downward relative to the second gravity loading component. At this time, the inner surface of the pressure ring 4 fits with the outer surface of the intermediate ring A, so that the gravity of the first gravity loading component is loaded onto the outer peripheral surface of the intermediate ring A, causing the intermediate ring A to be displaced axially along the standard mounting seat 14. In this process, the pressure plate 1 loads pressure onto the probe of the first measuring component C1, and the first measuring component C1 detects the displacement loaded by the first gravity loading component.

[0047] Finally, the displacement of the middle ring A is the sum of the readings on the second measuring component C2 and the first measuring component C1.

Claims

1. The detection device of the synchronizer intermediate ring is characterized in that: include: a first gravity loading assembly for applying gravity to the outer peripheral surface of the intermediate ring (A); A lifting driver for driving the first gravity loading component to lift, the first gravity loading component being movably connected to an output end of the lifting driver, and causing the gravity of the first gravity loading component to be loaded onto an outer peripheral surface of the intermediate ring when the first gravity loading component is engaged with the intermediate ring (A); A second gravity loading component, wherein the first gravity loading component is provided with a first clearance hole, and the second gravity loading component passes through the first clearance hole, so that two parts of the second gravity loading component are distributed on both sides of the first gravity loading component, and after the second gravity loading component is combined with the axial end face of the intermediate ring (A), the gravity of the second gravity loading component is loaded onto the axial end face of the intermediate ring (A); A supporting component that cooperates with the inner circumference of the intermediate ring (A) to support the intermediate ring (A); A first measuring component (C1) for detecting the displacement of the first gravity loading component after the gravity of the first gravity loading component is loaded onto the intermediate ring; A second measuring component (C2) for detecting the displacement of the second gravity loading component after the gravity of the second gravity loading component is loaded onto the intermediate ring.

2. The synchronizer intermediate ring detection device according to claim 1, characterized in that: The first gravity loading assembly comprises a pressure plate (1), a connecting frame (2), a connecting ring (3), and a pressure ring (4) for coupling with the outer peripheral surface of the intermediate ring (A); the connecting frame (2) is located at one end of the pressure plate (1) and is fixed to the pressure plate (1); the connecting frame (2) is clearance-matched with the power output end of the lifting drive; the connecting ring (3) is located at the other end of the pressure plate (1) and is fixed to the pressure plate (1); and the pressure ring (4) is fixed to the connecting ring (3).

3. The synchronizer intermediate ring detection device according to claim 2, characterized in that: The first gravity loading assembly also includes a counterweight (5); a blind hole is provided on the pressure plate (1), and the counterweight (5) is located in the blind hole.

4. The synchronizer intermediate ring detection device according to claim 2, characterized in that: The first gravity loading component also includes a linear guide component (6), which is fixed to the pressure plate (1), and the two ends of the second gravity loading component are slidably matched with the linear guide component (6).

5. The synchronizer intermediate ring detection device according to claim 1, characterized in that: The lifting drive comprises a bracket (7), a lifting drive component (8), and a limiting component (9) for supporting a first gravity loading component. The lifting drive component (8) is fixed on the bracket (7), a power output end of the lifting drive component (8) is connected to the limiting component (9), and the first gravity loading component is clearance-matched with the power output end of the lifting drive component (8).

6. The synchronizer intermediate ring detection device according to claim 1, characterized in that: The second gravity loading component comprises a movable frame (10), a guide rod (11), and a pressure block (12) for combining with the axial end surface of the intermediate ring (A); the movable frame (10) is located on one side of the first gravity loading component, and the pressure block (12) is located on the other side of the first gravity loading component; one end of the guide rod (11) is fixed to the movable frame (10), and the other end of the guide rod (11) passes through a first clearance hole on the first gravity loading component and is fixed to the pressure block (12); the guide rod (11) and the first clearance hole are clearance-matched.

7. The synchronizer intermediate ring detection device according to claim 6, characterized in that: The second gravity loading assembly also includes a slide rail (10a) for slidingly cooperating with the first gravity loading assembly.

8. The synchronizer intermediate ring detection device according to claim 1, characterized in that: The support assembly comprises a support seat (13) and a standard mounting seat (14). One end of the standard mounting seat (14) is fixed to the support seat (13), and the other end of the standard mounting seat (14) is provided with a conical surface for matching with the intermediate ring (A).

9. The synchronizer intermediate ring detection device according to claim 1, characterized in that: The first measuring component (C1) is a micrometer, and the first gravity loading assembly applies pressure to the probe of the first measuring component after it descends.

10. The synchronizer intermediate ring detection device according to claim 1, characterized in that: The second measuring component (C2) is a micrometer, and the first gravity loading component is provided with a second clearance hole. After the second gravity loading component descends, the probe of the second measuring component (C2) passively passes through the second clearance hole, and the second gravity loading component applies pressure to the second measuring component.

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