Clutch pressure plate parallelism detection device

Abstract

The present disclosure relates to a device for detecting the parallelism of a clutch pressure plate, comprising: a base; a flywheel processing part fixed on the base; a core shaft axially passing through the flywheel processing part and fixedly connected thereto, with an axially extending threaded hole formed on the core shaft; a threaded fastener for axially passing through the clutch pressure plate and being threadedly connected to the core shaft; a clamping member for clamping the clutch pressure plate, the clamping member being clamped between the end of the threaded fastener and the clutch pressure plate; and a detection member. In this way, the threaded fastener axially passes through the clamping member and the clutch pressure plate in sequence and gradually screws into the threaded hole of the core shaft, thereby achieving the clamping of the clutch pressure plate by the clamping member, thereby simulating the clamping state of the clutch pressure plate, and then the parallelism of the clutch pressure plate in the clamping state is detected and confirmed by the detection member. The detection device can detect and confirm the parallelism of the clutch pressure plate with the flywheel after being clamped, effectively control the inclination of the clutch pressure plate, and reduce the ablation phenomenon of the clutch.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle production and manufacturing, and in particular to a device for detecting the parallelism of a clutch pressure plate. Background Art

[0002] The clutch, mounted on one side of the engine's flywheel, acts as a bridge, transferring engine power to the transmission. This allows the engine's torque to be transmitted to the transmission, ensuring normal vehicle operation. The clutch pressure plate is a crucial component of the clutch, compressing the driven plate to transmit and disconnect power while also preventing overload. The parallelism of the clutch pressure plate with the flywheel (i.e., the pressure plate's tilt) is a crucial parameter for clutch operation and effectively prevents clutch erosion.

[0003] Related technologies use the clutch pressure plate's tilt to ensure parallelism with the flywheel during operation, thereby minimizing the impact of clutch pressure plate size on clutch erosion. However, when the clutch pressure plate's tilt requirement is increased, there are currently no suitable tooling or inspection tools to test the clutch pressure plate's parallelism when it is compressed. Summary of the Invention

[0004] The purpose of the present disclosure is to provide a clutch pressure plate parallelism detection device, which can detect the parallelism of the clutch pressure plate in a tightened state and reduce the clutch ablation phenomenon.

[0005] In order to achieve the above-mentioned object, the present disclosure provides a clutch pressure plate parallelism detection device, comprising:

[0006] base;

[0007] a flywheel processing part, fixed on the base;

[0008] a core shaft, axially passing through the flywheel workpiece and fixedly connected thereto, wherein the core shaft is formed with an axially extending threaded hole;

[0009] a threaded fastener, used for passing through the clutch pressure plate in the axial direction and being threadedly connected to the core shaft;

[0010] A pressing member for pressing the clutch pressure plate, the pressing member being sandwiched between the end of the threaded fastener and the clutch pressure plate, and as the threaded fastener is engaged with the core shaft, the pressing member moves axially and presses the clutch pressure plate onto the flywheel workpiece; and

[0011] The detection part is used to detect the parallelism of the clutch pressure plate in the compressed state.

[0012] Optionally, the clamping member includes a clamping portion and a first guide portion, the clamping portion is located between the threaded fastener and the clutch pressure plate, and the first guide portion axially passes through the clutch pressure plate and is slidably mounted on the outside of the core shaft.

[0013] Optionally, the clamping member has a first through hole and a second through hole arranged axially in sequence, the threaded fastener passes through the first through hole and the second through hole in sequence, the diameter of the first through hole is matched with the diameter of the screw of the threaded fastener, and the diameter of the second through hole is matched with the diameter of the core shaft.

[0014] Optionally, the core shaft includes a fixing portion and a second guide portion, the fixing portion is fixedly connected to the flywheel processing part, and the second guide portion passes through the flywheel processing part in the axial direction and cooperates with the first guide portion.

[0015] Optionally, an axial length of the second through hole is greater than an axial length of the second guide portion.

[0016] Optionally, the threaded fastener extends outwardly of the mandrel.

[0017] Optionally, the detection device further includes a calibration structure for calibrating the detection member before measurement.

[0018] Optionally, the detection component is a dial indicator, and the calibration structure includes a first pair of dial blocks and a second pair of dial blocks connected to the first pair of dial blocks.

[0019] Optionally, the detection component is a dial indicator, and the detection device further includes a dial indicator base for fixing the dial indicator and a dial cover sleeved outside the measuring rod of the dial indicator, and the dial indicator base is fixedly connected to the dial cover.

[0020] Optionally, an axially extending cutout is provided on the cover.

[0021] Through the above technical solution, the threaded fastener axially passes through the clamping member and clutch pressure plate and gradually screws into the threaded hole of the core shaft, thereby achieving the clamping member's compression of the clutch pressure plate, thereby simulating the clutch pressure plate's compression state. The parallelism of the clutch pressure plate in the compression state is then detected and confirmed by the detection member. This detection device is simple and reliable, and can detect and confirm the parallelism of the clutch pressure plate with the flywheel after compression, effectively controlling the inclination of the clutch pressure plate, ensuring the effective function of the clutch during vehicle driving, as well as the development and verification of the clutch, and reducing clutch ablation in the market.

[0022] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0024] Figure 1 1 is a schematic structural diagram of a device for detecting parallelism of a clutch pressure plate provided by an exemplary embodiment of the present disclosure;

[0025] Figure 2 1 is a schematic structural diagram of a calibration structure in a clutch pressure plate parallelism detection device provided by an exemplary embodiment of the present disclosure;

[0026] Figure 3 1 is a schematic structural diagram of a pressing member in a device for detecting parallelism of a clutch pressure plate provided by an exemplary embodiment of the present disclosure;

[0027] Figure 4 1 is a schematic structural diagram of a core shaft in a device for detecting parallelism of a clutch pressure plate provided in an exemplary embodiment of the present disclosure;

[0028] Figure 5 1 is a schematic structural diagram of a cover in a device for detecting parallelism of a clutch pressure plate provided by an exemplary embodiment of the present disclosure;

[0029] Figure 6 yes Figure 5 side view.

[0030] Description of Reference Numerals

[0031] 1-clutch pressure plate, 10-base, 20-flywheel processing part, 201-fifth through hole, 21-first fastener, 30-core shaft, 31-fixing part, 32-second guide part, 40-threaded fastener, 50-pressing part, 501-first through hole, 502-second through hole, 51-pressing part, 52-first guide part, 60-detection part, 70-support part, 71-second fastener, 81-first pair of meter blocks, 82-second pair of meter blocks, 821-third through hole, 83-third fastener, 91-dial indicator base, 911-fourth through hole, 92-meter cover, 921-cutout, 922-second groove, 93-fourth fastener. DETAILED DESCRIPTION

[0032] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0033] In this disclosure, unless otherwise stated, the directional words used, such as "upper", "lower", "top", and "bottom", are defined according to the actual use state of the clutch pressure plate parallelism detection device. Figure 1 The directions of the drawings are as shown; "inner" and "outer" refer to the inner and outer sides of the corresponding component outlines. Furthermore, the terms "first," "second," and so on, used in this disclosure are intended to distinguish one element from another and do not convey sequential or significant meanings. In the following description, unless otherwise indicated, identical numerals in different figures represent identical or similar elements.

[0034] Reference Figure 1 The present disclosure provides a clutch pressure plate parallelism detection device, comprising a base 10, a flywheel processing part 20, a core shaft 30, a threaded fastener 40, a clamping member 50, and a detection member 60. The flywheel processing part 20 can be fixed to the base 10. For example, the bottom of the flywheel processing part 20 can be fixedly connected to the base 10, thereby constructing a base structure based on the flywheel processing part 20. The flywheel processing part 20 can be a modified flywheel component modified according to the flywheel model of the clutch pressure plate 1 to be tested, that is, a corresponding flywheel can be modified according to the requirements of different clutch pressure plates 1. The core shaft 30 can axially pass through the flywheel processing part 20 and be fixedly connected thereto, thereby serving as a clamping base for the clutch pressure plate 1 together with the flywheel processing part 20. The core shaft 30 can be formed with an axially extending threaded hole. The threaded fastener 40 can be used to axially pass through the clutch pressure plate 1 and be threadedly connected to the core shaft 30, that is, the threaded fastener 40 can be mated with the threaded hole on the core shaft 30. The pressing member 50 can be used to compress the clutch pressure plate 1. The pressing member 50 can be sandwiched between the end of the threaded fastener 40 and the clutch pressure plate 1. As the threaded fastener 40 is engaged with the core shaft 30, the pressing member 50 moves axially and presses the clutch pressure plate 1 against the flywheel workpiece 20. The detection member 60 can be used to detect the parallelism of the clutch pressure plate 1 in the compressed state.

[0035] It should be noted that the present disclosure does not limit the connection form between the core shaft 30 and the flywheel processing part 20. As an embodiment, refer to Figure 1The two can be connected by a first fastener 21. The first fastener 21 can be, for example, a bolt, and can include multiple first fasteners 21 evenly distributed along the circumference. In addition, the mandrel 30 can axially pass through the center hole of the flywheel processing part 20, and the mandrel 30 and the threaded hole on the mandrel 30 can both be coaxial with the center hole of the flywheel processing part 20. That is, the threaded hole can be the center hole of the mandrel 30, and different mandrels 30 can correspond to different center holes of the flywheel processing part 20. Correspondingly, the threaded fastener 40 can axially pass through the center hole of the clutch pressure plate 1, and the center hole of the clutch pressure plate 1 can be coaxial with the center hole of the flywheel processing part 20. At the same time, the clamping member 50 can be formed with an axial through hole for the threaded fastener 40 to pass through, and this axial through hole can be coaxial with the center hole of the clutch pressure plate 1.

[0036] Therefore, refer to Figure 1 In the structure shown, the flywheel processing part 20 is vertically fixed on the base 10, the mandrel 30 is fixed on the center hole of the flywheel processing part 20, and the threaded fastener 40 passes through the clamping member 50 and the clutch pressure plate 1 in sequence and extends into the threaded hole of the mandrel 30. As the axial depth of the threaded fastener 40 screwed into the mandrel 30 gradually increases, the clamping member 50 and the clutch pressure plate 1 simultaneously move axially toward the flywheel processing part 20. First, the clutch pressure plate 1 is fixed on the flywheel processing part 20, and then the clamping member 50 presses the clutch pressure plate 1, finally completing the clamping of the clutch pressure plate 1. After the clutch pressure plate 1 is clamped, the detection member 60 can detect the parallelism of the clutch pressure plate 1 and the flywheel processing part 20. The above-mentioned detection device provided by the present disclosure can realize the clamping of the clutch pressure plate 1 by the clamping member 50 through the cooperation of the threaded fastener 40 and the threaded hole on the mandrel 30, which can not only control the parallelism of the clutch pressure plate 1 before use, but also detect the parallelism of the clutch pressure plate 1 after use. When the customer has a demand that the inclination amount of the clutch pressure plate 1 be increased, the parallelism of the clutch pressure plate 1 after the increased requirement can also be tested.

[0037] Through the above technical solution, the threaded fastener 40 sequentially passes through the clamping member 50 and the clutch pressure plate 1 in the axial direction and gradually screws into the threaded hole of the core shaft 30, thereby achieving the clamping of the clutch pressure plate 1 by the clamping member 50, thereby simulating the clamping state of the clutch pressure plate 1. The parallelism of the clutch pressure plate 1 in the clamped state is then detected and confirmed by the detection member 60. The detection device is simple and reliable, and can detect and confirm the parallelism of the clutch pressure plate 1 with the flywheel after being compressed, effectively controlling the inclination of the clutch pressure plate 1, ensuring the effective function of the clutch during vehicle driving, as well as the development and verification of the clutch, and reducing clutch ablation in the market.

[0038] According to some embodiments, reference Figure 1 and Figure 3 The pressing member 50 may include a pressing portion 51 and a first guide portion 52. The pressing portion 51 may be located between the end of the threaded fastener 40 and the clutch pressure plate 1 to compress the clutch pressure plate 1. The first guide portion 52 may pass through the clutch pressure plate 1 axially and be slidably sleeved on the outside of the core shaft 30 so that the pressing member 50 will not tilt when compressing the clutch pressure plate 1, thereby ensuring the accuracy of the detection. The pressing member 50 may be constructed as a stepped columnar structure, that is, the diameter of the pressing portion 51 is larger than the diameter of the first guide portion 52, and the above-mentioned axial through hole may be the center hole of the pressing member 50. Among them, as Figure 3 As shown, the transition portion between the clamping portion 51 and the first guide portion 52 can be recessed inward to form a first groove, that is, only the outer portion of the end face of the clamping portion 51 is used to clamp the clutch pressure plate 1. The clamping portion 51 can, for example, be clamped on the diaphragm spring of the clutch pressure plate 1.

[0039] Further, refer to Figure 1 and Figure 3 The pressing member 50 may have a first through hole 501 and a second through hole 502 arranged in sequence along the axial direction, and the threaded fastener 40 may pass through the first through hole 501 and the second through hole 502 in sequence along the axial direction. That is, the above-mentioned axial through hole may include a first through hole 501 and a second through hole 502, and the first through hole 501 and the second through hole 502 are coaxial. The diameter of the first through hole 501 may be matched with the diameter of the screw of the threaded fastener 40, for example, the diameter of the first through hole 501 may be slightly larger than the diameter of the screw of the threaded fastener 40; the diameter of the second through hole 502 may be matched with the diameter of the core shaft 30, for example, the diameter of the second through hole 502 may be slightly larger than the diameter of the core shaft 30 (the second guide portion 32 described below). In this way, on the one hand, the core shaft 30 can be prevented from passing out of the pressing member 50, and on the other hand, the contact area between the pressing portion 51 and the end of the threaded fastener 40 can be increased to ensure the pressing effect.

[0040] According to some embodiments, reference Figure 1 and Figure 4 The mandrel 30 may include a fixing portion 31 and a second guide portion 32. The fixing portion 31 may be fixedly connected to the flywheel processing member 20 and may have a mounting hole formed therein for engaging with the first fastener 21 to secure the mandrel 30. The second guide portion 32 may axially penetrate the flywheel processing member 20 and engage with the first guide portion 52 of the pressing member 50. The mandrel 30 may also be configured as a stepped columnar structure, i.e., the diameter of the fixing portion 31 is larger than the diameter of the second guide portion 32.

[0041] Furthermore, in order to prevent the pressing member 50 from being blocked by the second guide portion 32 when the clutch pressure plate 1 is not yet compressed and cannot continue to move axially, the axial length of the second through hole 502 on the pressing member 50 is greater than the axial length of the second guide portion 32. Figure 1 In the left-right direction, during the compression of the clutch pressure plate 1, the second guide portion 32 on the core shaft 30 extends leftward into the interior of the second through hole 502 on the compression member 50. As the compression member 50 moves axially to the right, a gap must be formed between the left end of the second through hole 502 and the left end of the second guide portion 32, i.e., the two do not contact. At the same time, a gap must also be formed between the right end of the first guide portion 51 on the compression member 50 and the right end of the second guide portion 32.

[0042] In the embodiments provided in this disclosure, reference is made to Figure 1 The threaded fastener 40 can be a bolt, and the threaded fastener 40 can extend to the outside of the core shaft 30. That is, a central through hole can be opened on the core shaft 30. The central through hole can be made into a threaded hole in its entirety, or part of it can be made into a smooth hole and the other part into a threaded hole. For example, Figure 4 In the illustrated structure, the threaded hole is formed only at an axial position of the core shaft 30 close to the fixing portion 31 so as to be threadedly engaged with the threaded fastener 40 .

[0043] In addition, in order to facilitate installation and better support the flywheel processing part 20, refer to Figure 1 A support member 70 may be provided between the base 10 and the flywheel processing part 20. The support member 70 may be fixedly connected to the base 10 and the flywheel processing part 20, respectively, so that a measuring workbench of the detection device can be established through the base 10, the support member 70 and the flywheel processing part 20. As an embodiment, referring to Figure 1 Threaded holes may be formed on the base 10, the support member 70 and the flywheel processing member 20 respectively, and a second fastener 71 in the form of a stud, for example, may securely connect the three.

[0044] According to some embodiments, the detection device may further include a calibration structure for calibrating the detection member 60 before measurement to ensure the measurement accuracy of the detection member 60 .

[0045] Here, as an embodiment, referring to Figure 1 and Figure 2The detection member 60 can be a dial indicator, and the calibration structure can include a first pair of meter blocks 81 and a second pair of meter blocks 82 connected to the first pair of meter blocks 81, so as to calibrate the dial indicator through the first pair of meter blocks 81 and the second pair of meter blocks 82. The first pair of meter blocks 81 and the second pair of meter blocks 82 can both be formed into cylindrical structures, and the third fastener 83 can axially pass through the first pair of meter blocks 81 and be connected to the second pair of meter blocks 82. The third fastener 83 can be, for example, a slotted countersunk bolt. Among them, the axial center of the second pair of meter blocks 82 can be formed with a third through hole 821 for the measuring rod of the dial indicator to extend into. The measuring rod of the dial indicator can axially extend into the third through hole 821 and contact the axial end surface of the first pair of meter blocks 81 for calibration.

[0046] To ensure the accuracy of the test and avoid the dial indicator shaking during the test, refer to Figure 1 and Figure 2 The detection device may further include a dial indicator base 91 for fixing the dial indicator and a dial cover 92 mounted on the outer surface of the dial indicator's measuring rod, wherein the dial indicator base 91 may be fixedly connected to the dial cover 92. In one embodiment, the dial indicator base 91 may be formed with a fourth through hole 911 for allowing the dial indicator's measuring rod and the dial cover 92 to extend therethrough. The fourth through hole 911 may extend axially, and a fourth fastener 93 may radially pass through the dial indicator base 91 and be fixedly connected to the dial cover 92. The fourth fastener 93 may be, for example, a slotted flat-end set screw.

[0047] Further, refer to Figure 2 and Figure 5 A second, radially inwardly recessed groove 922 may be formed on the outer circumference of the dial sleeve 92. The second groove 922 may be located axially in the middle of the dial sleeve 92, and the axial length of the second groove 922 may be designed to match the size of the slotted, flat-pointed set screw to position the slotted, flat-pointed set screw. Specifically, the slotted, flat-pointed set screw may radially pass through the dial indicator base 91 and engage with the second groove 922 on the dial sleeve 92 to secure the dial indicator.

[0048] In addition, refer to Figure 5 and Figure 6 The cover 92 may also be provided with an axially extending notch 921, that is, the cover 92 may be formed into a circumferentially unclosed structure. By designing the notch 921, the dial indicator can be easily installed and matched.

[0049] Reference Figure 1 In the embodiment provided herein, a fifth through-hole 201 may be formed on the flywheel workpiece 20 for the detection member 60 to pass through. After calibration, the detection member 60, secured by the dial indicator base 91 and the dial cover 92, can be used to detect the parallelism of the clutch pressure plate 1 through the fifth through-hole 201.

[0050] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0051] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0052] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A clutch pressure plate parallelism detection device, characterized in that: include: Base (10); A flywheel processing part (20) is fixed on the base (10); A core shaft (30) axially passes through the flywheel workpiece (20) and is fixedly connected thereto, wherein an axially extending threaded hole is formed on the core shaft (30); A threaded fastener (40) is used to pass through the clutch pressure plate (1) in the axial direction and be threadedly connected to the core shaft (30); A pressing member (50) for pressing the clutch pressure plate (1), wherein the pressing member (50) is sandwiched between the end of the threaded fastener (40) and the clutch pressure plate (1), and as the threaded fastener (40) is engaged with the core shaft (30), the pressing member (50) moves axially and presses the clutch pressure plate (1) onto the flywheel workpiece (20); and A detection member (60) for detecting the parallelism of the clutch pressure plate (1) in a compressed state; The pressing member (50) includes a pressing portion (51) and a first guide portion (52), wherein the pressing portion (51) is located between the threaded fastener (40) and the clutch pressure plate (1), and the first guide portion (52) axially passes through the clutch pressure plate (1) and is slidably sleeved on the outside of the core shaft (30). The pressing member (50) has a first through hole (501) and a second through hole (502) arranged in sequence in the axial direction, and the threaded fastener (40) passes through the first through hole (501) and the second through hole (502) in sequence. The diameter of the first through hole (501) is matched with the diameter of the screw of the threaded fastener (40), and the diameter of the second through hole (502) is matched with the diameter of the core shaft (30).

2. The detection device according to claim 1, characterized in that The core shaft (30) includes a fixing portion (31) and a second guide portion (32), wherein the fixing portion (31) is fixedly connected to the flywheel processing part (20), and the second guide portion (32) passes through the flywheel processing part (20) in the axial direction and cooperates with the first guide portion (52).

3. The detection device according to claim 2, characterized in that The axial length of the second through hole (502) is greater than the axial length of the second guide portion (32).

4. The detection device according to claim 1, characterized in that The threaded fastener (40) protrudes to the exterior of the core shaft (30).

5. The detection device according to claim 1, characterized in that The detection device further comprises a calibration structure for calibrating the detection member (60) before measurement.

6. The detection device according to claim 5, characterized in that The detection member (60) is a dial indicator, and the calibration structure comprises a first pair of meter blocks (81) and a second pair of meter blocks (82) connected to the first pair of meter blocks (81).

7. The detection device according to claim 5, characterized in that The detection member (60) is a dial indicator, and the detection device further comprises a dial indicator base (91) for fixing the dial indicator and a dial cover (92) sleeved on the outside of the measuring rod of the dial indicator, wherein the dial indicator base (91) is fixedly connected to the dial cover (92).

8. The detection device according to claim 7, characterized in that The cover (92) is provided with an axially extending cutout (921).

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