Tool for measuring window spacing difference of clutch retainer

Abstract

The invention relates to a clutch retainer window spacing difference measuring tool comprising a mounting bracket which is fixed on a workbench, and a measuring sleeve is inserted on the mounting bracket; the measuring sleeve comprises an outer cylinder; a plurality of edge teeth which are arranged at certain intervals are arranged along the circumference of the outer cylinder, each edge tooth comprises a wide tooth and other standard teeth, the wide teeth are wider than the other standard teeth, and the clutch retainer is inserted into the outer cylinder and is coaxially arranged with the outer cylinder; the clutch retainer is pressed and fixed by a fork-shaped pressing plate; during working, after the clutch retainer is installed in the measuring sleeve, one connecting strip of the clutch retainer is tightly attached to the wide teeth and is pressed and fixed through the fork-shaped pressing plate, at the moment, certain gaps exist between other windows of the clutch retainer and other standard teeth, and a filler gauge is plugged into the measuring sleeve to measure the gaps so as to obtain the distance difference value. The beneficial effects of the invention are that the measurement mode is time-saving and labor-saving, the measurement is accurate, and the measurement efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of cage measurement, in particular to a measuring tool for a clutch cage window spacing difference. Background Art

[0002] The clutch cage is an important component that connects the clutch and the transmission. Its function is to evenly space the rolling elements, reduce friction and wear, and adjust the wedge angle to enhance the locking function, thereby fixing the clutch, synchronizing it with the transmission, and transmitting power smoothly. If the clutch cage is damaged, the clutch will not work properly; the clutch cage is provided with multiple equally spaced connecting strips along the axial direction between the upper and lower circular ring frames set coaxially, and the multiple connecting strips separate the upper and lower frames of the clutch cage into multiple windows. Before using the clutch cage, the spacing difference of the multiple windows of the clutch cage needs to be measured.

[0003] However, there is currently no measuring tool designed specifically for measuring the window spacing difference of the clutch retainer. Currently, manual measurement is usually used. This method is difficult to measure the accurate difference and is very time-consuming and labor-intensive, and the measurement efficiency and measurement quality are relatively low.

[0004] Therefore, based on the problems and deficiencies reported by customers, the inventors have made further improvements according to the defects and deficiencies raised to overcome the above problems. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a measuring tool for measuring the window spacing difference of a clutch retainer which is time-saving, labor-saving, accurate and efficient.

[0006] The object of the present invention is achieved by the following technical scheme: a measuring tool for the window spacing difference of a clutch retainer, the clutch retainer comprises an annular upper frame and a lower frame arranged coaxially, and a plurality of connecting strips arranged axially between the upper and lower frames and spaced equally along the circumference, the plurality of connecting strips separating the upper and lower frames into a plurality of windows, comprising:

[0007] A mounting bracket, which is fixed on the workbench and on which a measuring sleeve is inserted;

[0008] The measuring sleeve comprises an outer cylinder; a plurality of ridge teeth are provided along the circumference of the outer cylinder at a certain interval, the ridge teeth include a wide tooth and the rest of the standard teeth, the wide tooth is wider than the other standard teeth, and the clutch retainer is inserted into the outer cylinder and arranged coaxially with the outer cylinder;

[0009] A fork-shaped pressure plate is used to press and fix the clutch retainer after the clutch retainer is inserted into the measuring sleeve in an adaptive manner;

[0010] During operation, after installing the clutch retainer into the measuring sleeve, make one of the connecting strips of the clutch retainer close to the wide teeth and use the fork-shaped pressure plate to press and fix the clutch retainer. At this time, there is a certain gap between the remaining windows of the clutch retainer and the remaining standard teeth of the measuring sleeve. Insert a feeler gauge to measure the gap and obtain the spacing difference.

[0011] As a preferred technical solution of the present application, the measuring sleeve also includes an inner cylinder; a coaxial outer cylinder is opened along the circumference of the outer wall of the inner cylinder, a circular ring gap is set between the inner cylinder and the outer cylinder, the clutch retainer is inserted into the circular ring gap and the clutch retainer is set outside the inner cylinder.

[0012] As a preferred technical solution of the present application, the depth of the annular spacing is just enough to allow the clutch retainer to be inserted into the measuring sleeve in an adaptable manner, the lower frame of the clutch retainer is against the inner bottom surface of the annular spacing, and the edge of its upper frame is flush with the circular surface of the outer cylinder.

[0013] As a preferred technical solution of the present application, the fork-shaped pressure plate further includes a bolt;

[0014] A circular hole is opened in the center of the fork-shaped pressure plate, and when the fork-shaped pressure plate is aligned with the assembled clutch retainer and the measuring sleeve, a bolt is inserted into the circular hole and tightened to the inner cylinder base, so that the fork-shaped pressure plate presses the clutch retainer immobile.

[0015] As a preferred technical solution of the present application, a long bolt hole is opened in the inner tube base, and when the bolt of the fork-shaped pressure plate is inserted into the base, the bolt is inserted into the long bolt hole.

[0016] As a preferred technical solution of the present application, the measuring sleeve is rotatably connected to the mounting bracket, and a hand-pull positioning component is provided on the mounting bracket; when the positioning component is pulled out, the measuring sleeve can rotate, and when the positioning component is reset, the measuring sleeve is limited and fixed.

[0017] As a preferred technical solution of the present application, the positioning component includes a sleeve, and an inner shaft and a spring inserted therein;

[0018] The sleeve is fixed to the mounting bracket, and the sleeve has an inner cavity;

[0019] The inner shaft is arranged in the sleeve, and a spring is sleeved on the inner shaft, one end of the spring is against the inner shaft, and the other end is against the inner end surface of the sleeve; the end of the inner shaft passes through the sleeve and extends out to connect the handle. When the handle is pulled outward, the inner shaft retracts in the sleeve and compresses the spring. When the handle is released, the inner shaft extends due to the rebound of the spring.

[0020] As a preferred technical solution of the present application, a plurality of positioning holes are provided on the measuring sleeve base along the circumference. When the positioning component is reset, the inner shaft is inserted into the corresponding positioning hole to fix the measuring sleeve.

[0021] The present invention has the following advantages:

[0022] (1) The measurement method saves time and effort and the measured value is more accurate;

[0023] At present, the window spacing difference of the clutch retainer is measured manually, but this measurement method is difficult, time-consuming and labor-intensive, resulting in low measurement efficiency, and the measured value is not accurate enough; the measuring tool designed in this scheme can clamp the clutch retainer and use the measuring sleeve set by the tool itself for measurement. The position where the measuring sleeve contacts the connecting strip of the clutch retainer window is designed to be a plurality of ridge teeth, and one of the ridge teeth is a wide tooth, which is wider than other standard teeth. When the clutch retainer is inserted and the side of its connecting strip is fitted with the side of the wide tooth, the gap formed in other parts is measured by a feeler gauge, and the obtained value is the spacing difference. This insertion fixture measurement can convert the large spacing to be measured into a small spacing, so that it can be easily measured by inserting a feeler gauge, which saves time and effort and the measurement value is more accurate;

[0024] (2) It is easy to measure and improves the measurement efficiency;

[0025] The measuring sleeve designed in this scheme can rotate, and the clutch retainer inserted therein is fixed in the measuring sleeve due to the locking of the fork-shaped pressure plate. When the measuring sleeve rotates, the clutch retainer therein is driven to rotate together, so that after measuring the window spacing difference of the upper half of the clutch retainer, the measuring sleeve is rotated to measure the window spacing difference of the lower half. At the same time, a hand-pull positioning component is provided on the mounting bracket, which cooperates with the positioning hole on the base of the measuring sleeve. After rotating to the specified position, the measuring sleeve is limited. This tooling can measure the entire clutch retainer after one assembly, and the work efficiency is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the clutch retainer tested by the present invention;

[0027] Figure 2 It is a structural schematic diagram of the present invention after the clutch retainer is assembled from the first perspective;

[0028] Figure 3 It is a structural schematic diagram of the measuring sleeve and the clutch retainer of the present invention after installation, viewed from a half-section perspective;

[0029] Figure 4 It is a structural schematic diagram of the measuring sleeve and the clutch retainer of the present invention after installation, viewed from a second viewing angle of the half-surface section;

[0030] Figure 5 It is a schematic structural diagram of the measuring sleeve and the positioning component of the present invention after being installed from a first viewing angle;

[0031] Figure 6This is a schematic structural diagram of the measuring set of the present invention from a first viewing angle;

[0032] Figure 7 This is a schematic structural diagram of the fork-shaped pressing plate of the present invention from a first viewing angle;

[0033] Figure 8 This is a structural schematic diagram of the positioning component of the present invention from a first viewing angle;

[0034] Fig. 9 It is a structural schematic diagram of a half-section view of a positioning component of the present invention;

[0035] In the figure: 1-mounting bracket, 2-outer cylinder, 3-inner cylinder, 4-wide teeth, 5-standard teeth, 6-clutch retainer, 7-connecting strip, 8-mounting shaft, 9-fork pressure plate, 10-bolt, 11-sleeve, 12-nut, 13-spring, 14-handle, 15-positioning hole, 16-large diameter section, 17-small diameter section, 18-upper frame, 19-lower frame. DETAILED DESCRIPTION

[0036] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0037] It should be noted that the directions or positional relationships indicated by "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use, or are the directions or positional relationships commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0039] It should be noted that the clutch retaining frame 6 currently used includes upper and lower circular frame portions arranged coaxially and a plurality of connecting strips 7 arranged circumferentially and axially at equal intervals between the upper and lower frame portions 19, and the plurality of connecting strips 7 divide the upper frame portion 18 and the lower frame portion 19 into a plurality of grid windows.

[0040] When repairing and testing the quality of the current clutch retainer 6, it is necessary to test the spacing difference of each window. However, there is no suitable auxiliary measurement tool in the current market, resulting in low measurement efficiency and inaccurate measurement.

[0041] Therefore, based on the above issues, see Figure 1 The present invention proposes a measuring tool for the difference in spacing between windows of a clutch retainer 6 to solve the problem.

[0042] (Example 1)

[0043] See also Figures 1 to 9 , a measuring tool for the window spacing difference of a clutch retainer 6 proposed in this embodiment includes a mounting bracket 1, a measuring sleeve, a fork-shaped pressure plate 9 and a clutch retainer 6;

[0044] Among them, see Figure 2 , the lower base plate of the mounting bracket 1 is fixed on the workbench by screws, and a rotatable measuring sleeve is inserted on the upper part of the mounting bracket 1;

[0045] Among them, see Figure 4 and Figure 6 The measuring sleeve includes an outer cylinder 2 and an inner cylinder 3; the inner cylinder 3 is arranged in the outer cylinder 2 and the two are coaxial, and there is a certain annular spacing between the inner cylinder 3 and the outer cylinder 2, and the annular spacing is used to insert the clutch retainer 6;

[0046] Among them, see Figure 5 and Figure 6 , a plurality of ridge teeth are provided on the circumferential side wall of the outer cylinder 2, the ridge teeth are spaced a certain distance apart and one of the ridge teeth (i.e., the wide teeth 4) is wider than the other ridge teeth (i.e., the standard teeth 5), after the clutch holder 6 is inserted into the measuring sleeve, the wide teeth 4 side of the outer cylinder 2 of the measuring sleeve is closely attached to the connecting strip 7 on the side of one of the windows of the clutch holder 6; and the fork-shaped pressing plate 9 is aligned with the measuring sleeve with the clutch holder 6 installed, and the bolt 10 is inserted into the inner cylinder 3 and tightened to fix;

[0047] When measuring the clutch retainer 6, first insert the clutch retainer 6 into the annular gap between the outer tube 2 and the inner tube 3, and rotate the clutch retainer 6 so that the side of the connecting strip 7 of one of the windows in the upper and lower frames 19 is in close contact with the side of the wide teeth 4 on the side of the outer tube 2, and then insert the fork-shaped pressure plate 9 to fix the clutch retainer 6 and the measuring sleeve. Since the other standard teeth 5 of the measuring sleeve are narrower than the wide teeth 4, when the wide teeth 4 are in close contact with one side of one of the windows of the clutch retainer 6, there is a certain gap between the other standard teeth 5 and the other windows of the clutch retainer 6. The gap is the spacing difference of each window. At this time, a feeler gauge is inserted to measure the gap.

[0048] At present, it is necessary to detect the spacing difference between each window of the clutch retainer 6. There is no special auxiliary measuring tool on the market, and direct measurement is difficult, time-consuming and labor-intensive, and the measured value is not accurate enough. This scheme designs a measuring tool, which measures the clutch retainer 6 by setting a measuring sleeve. The clutch retainer 6 is installed in conjunction with the measuring sleeve. Since the outer tube 2 of the measuring sleeve is provided with rib teeth, there is a certain spacing between the rib teeth, and one of the rib teeth is wider than the other rib teeth. The side of one of the connecting strips 7 of the clutch retainer 6 is pressed against the side of the wide tooth 4, and then a feeler gauge is used to measure the gap formed by the remaining standard teeth 5 and the window, thereby changing the measurement of large spacing to the measurement of small spacing, and the spacing difference can be measured more accurately and conveniently.

[0049] In this embodiment, refer to Figure 2 As for the mounting bracket 1, the mounting bracket 1 is an L-shaped plate bracket, and its lower bottom plate is fixed on the workbench by screws, so as to facilitate the subsequent measurement of the clutch retainer 6; a measuring sleeve is installed on the upper side plate of the mounting bracket 1, and a through hole is opened in the upper side plate. The measuring sleeve is provided with a mounting shaft 8 passing through the through hole and a nut member 12 is provided on the end sleeve passing through the end, and a flat washer is provided between the nut member 12 and the back of the side plate. The flat washer is a circular washer, which is provided on the outer side of the end of the mounting shaft 8. The two surfaces of the flat washer are respectively in contact with the nut member 12 and the side plate, so that the measuring sleeve as a whole can be rotatably connected to the mounting bracket 1.

[0050] In this embodiment, refer to Figure 3-Figure 6 For the measuring sleeve, the inner cylinder 3 of the measuring sleeve is hollow inside, and its base is sealed. A mounting shaft 8 protrudes outward from the center of the measuring sleeve base (i.e., toward the outside of the base), and the mounting shaft 8 is installed in cooperation with the mounting bracket 1. At the same time, a long bolt 10 hole is provided inside the base, and the long bolt 10 hole is opened toward the inside of the base. The fork-shaped pressing plate 9 is pressed and installed with the measuring sleeve through the long bolt 10 hole; a circle of outer cylinder 2 is provided on the outer wall of the inner cylinder 3 of the measuring sleeve along the circumference, the outer cylinder 2 and the inner cylinder 3 are an integral structure, and the circular ring spacing between the outer cylinder 2 and the inner cylinder 3 can allow the clutch retainer 6 to be fully inserted, and the lower frame 19 of the clutch retainer 6 is against the inner bottom surface of the circular ring spacing, and the edge of its upper frame 18 is flush with the circular surface of the outer cylinder 2.

[0051] In this embodiment, refer to Figure 4 and Figure 7For the fork-shaped pressure plate 9, when the fork-shaped pressure plate 9 is aligned and placed on the outside of the measuring sleeve of the clutch retainer 6 that has been inserted, the fork-shaped pressure plate 9 is attached to the outer surface of the upper frame 18 of the clutch retainer 6, and the fan blade end of the fork-shaped pressure plate 9 can just touch the circular edge of the upper frame 18 of the clutch retainer 6, and a circular hole is opened in the center of the fork-shaped pressure plate 9, and the bolt 10 is inserted into the circular hole and the bolt 10 is inserted into the long bolt 10 hole from the inner tube 3 to the inside of the base, so that when the bolt 10 is tightened, the fork-shaped pressure plate 9 can press the clutch retainer 6 to be immobile.

[0052] In this embodiment, refer to Figure 4 and Figure 8-Figure 9 , also includes a positioning component, the positioning component is inserted into the side plate of the mounting bracket 1, and the mounting hole is set below the through hole of the mounting measuring sleeve, the positioning component includes a sleeve 11, an inner shaft and a spring 13; the sleeve 11 is inserted into the mounting hole, and the sleeve 11 has a mounting surface, the lower surface of the mounting surface is in contact with the back of the side plate of the mounting bracket 1, and the sleeve 11 is fixed to the mounting bracket 1 by screws; the sleeve 11 has a through hole, the front end of the through hole is a small diameter hole, and the rear end is a large diameter hole, the two intersecting positions form a stepped table, and the inner shaft is divided into a small diameter section 17 and a large diameter section 16, the inner shaft is inserted into the sleeve 11 In the through-hole, a spring 13 is sleeved on the small diameter section 17 of the inner shaft, one end of the spring 13 abuts on the end surface of one end of the large diameter section 16 of the inner shaft, and the other end of the spring 13 abuts on the stepped table inside the sleeve 11; the large diameter section 16 of the inner shaft penetrates the sleeve 11 and extends out of the side plate, and the small diameter section 17 of the inner shaft also penetrates the sleeve 11 on the other side, and its extended end is connected to a handle 14, and the handle 14 is fixed to the end of the small diameter section 17 of the inner shaft through a short shaft. When the handle 14 is pulled outward, the inner shaft retracts in the sleeve 11 and compresses the spring 13. When the handle 14 is released, the inner shaft is rebounded due to the rebound effect of the spring 13.

[0053] For further information, see Fig. 9 A short shaft is also horizontally passed through the small diameter section 17 of the inner shaft. When the handle 14 is released and the inner shaft rebounds, the short shaft abuts against the sleeve 11, further limiting the position of the inner shaft.

[0054] In this embodiment, refer to Figure 5For the measuring sleeve, a plurality of positioning holes 15 are provided around the circumference on the base of the measuring sleeve, and the lower end of the large diameter section 16 of the inner shaft can be adaptively inserted into the positioning hole 15 to position the rotatable measuring sleeve; when the measuring sleeve is installed on the mounting bracket 1, the lower end of the inner shaft is inserted into one of the positioning holes 15 of the measuring sleeve, and the measuring sleeve cannot be rotated at this time. When the handle 14 is pulled outward, the inner shaft is pulled into the sleeve 11, and the measuring sleeve is not limited at this time and can be rotated; thus, after the clutch retainer 6 is installed into the measuring sleeve, after the window spacing difference of the upper half of the clutch retainer 6 is measured with a feeler gauge, the measuring sleeve is rotated to measure the window spacing difference of other parts by pulling the positioning component.

[0055] It should be noted that a plurality of positioning holes 15 are provided on the base of the measuring sleeve, so that the measuring sleeve can be rotated to a desired position for measurement more accurately and conveniently, which is more convenient.

[0056] The present invention is a measuring tool for measuring the spacing difference of the windows of a clutch retainer 6. When measuring the clutch retainer 6, the measuring sleeve and the mounting bracket 1 are first connected in cooperation. At this time, the lower end of the inner shaft of the positioning component is inserted into the positioning hole 15 of the base of the measuring sleeve, so that the measuring sleeve cannot rotate. Then the clutch retainer 6 is inserted into the measuring sleeve, and the side of the connecting strip 7 of one of the windows of the clutch retainer 6 is fitted with the side of the wide tooth 4 of the outer cylinder 2 of the measuring sleeve, and the clutch retainer 6 is fixed with a fork-shaped pressing plate 9. Subsequently, a feeler gauge is used to measure the gap between the remaining standard teeth 5 of the measuring sleeve and the other windows of the clutch retainer 6 to obtain the required value. After measuring the spacing difference of the upper half, the positioning component is pulled to rotate the measuring sleeve, and then the spacing difference of the lower half is measured. There is no need to take out the clutch retainer 6, and the measurement can be completed by only one assembly.

[0057] There is no tooling designed on the market to assist in measuring the difference in spacing between the windows of the clutch retainer 6. It is very difficult, time-consuming and laborious to manually measure the spacing value of each window, and the measured value is often not accurate enough. In view of the above problems, this scheme designs an auxiliary measurement tooling, and designs a clamping measurement tooling, which can fix the measured part, i.e., the clutch retainer 6, in the tooling. The main measuring component provided in this scheme is a measuring sleeve, and the clutch retainer 6 can be inserted into the measuring sleeve, and a fork-shaped pressure plate 9 with bolts 10 is inserted into the measuring sleeve on which the retainer has been installed for fixing. A plurality of ridge teeth at a certain interval are provided on the outer cylinder 2 of the measuring sleeve, and one of the ridge teeth is provided with a plurality of ridge teeth at a certain interval. The teeth are wide teeth 4, which are wider than other standard teeth 5. The measuring method of this scheme is to make one of the connecting strips 7 at the window of the inserted clutch retainer 6 close to the wide teeth 4, and at the same time form a gap with the corresponding window of the other standard teeth 5, so that the window spacing difference to be measured can be changed from a large spacing to a small spacing, and it is measured with a feeler gauge, which is simple and convenient, saves time and effort, and the measurement is very accurate; and the measuring sleeve of this scheme is designed to be rotatable, and at the same time, the positioning component is matched with the measuring sleeve, so that when it is necessary to measure the window spacing difference of the lower half of the clutch retainer 6, the handle 14 of the positioning component can be pulled to rotate the measuring sleeve to a suitable position, the operation is simple, and the clutch retainer 6 does not need to be removed, and all measurements can be completed by one assembly.

[0058] It should be noted that the stepped table: the diameter of the small diameter channel is smaller than that of the large diameter channel. When the side circular surface of the small diameter channel is coaxially connected with the side circular edge of the large diameter channel, a step-like port will be formed.

[0059] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A measuring tool for the window spacing difference of a clutch retainer, wherein the clutch retainer (6) comprises an upper frame (18) and a lower frame (19) arranged coaxially in an annular shape, and a plurality of connecting strips (7) arranged axially between the upper and lower frames (19) and spaced evenly along the circumference, wherein the plurality of connecting strips (7) separate the upper and lower frames (19) into a plurality of windows, characterized in that: include: A mounting bracket (1) is fixed on a workbench and a measuring sleeve is inserted into the mounting bracket (1); The measuring sleeve comprises an outer cylinder (2); a plurality of ridge teeth are provided along the circumference of the outer cylinder (2) at a certain interval, the ridge teeth comprising a wide tooth (4) and other standard teeth (5), the wide tooth (4) being wider than the other standard teeth (5); a clutch retainer (6) is inserted into the outer cylinder (2) and is arranged coaxially with the outer cylinder (2); A fork-shaped pressing plate (9), after the clutch retainer (6) is inserted into the measuring sleeve in a fitting manner, the fork-shaped pressing plate (9) presses and fixes the clutch retainer (6); During operation, after the clutch holder (6) is installed in the measuring sleeve, one of the connecting strips (7) of the clutch holder (6) is closely attached to the wide teeth (4) and the clutch holder (6) is pressed and fixed by a fork-shaped pressure plate (9). At this time, there is a certain gap between the remaining windows of the clutch holder (6) and the remaining standard teeth (5) of the measuring sleeve. A feeler gauge is inserted to measure the gap to obtain the spacing difference.

2. A measuring tool for the window spacing difference of a clutch retainer according to claim 1, characterized in that: The measuring sleeve also includes an inner cylinder (3); a coaxial outer cylinder (2) is provided along the circumferential direction of the outer wall of the inner cylinder (3); a circular ring gap is provided between the inner cylinder (3) and the outer cylinder (2); a clutch retainer (6) is inserted into the circular ring gap and the clutch retainer (6) is sleeved outside the inner cylinder (3).

3. The measuring tool for the clutch retainer window spacing difference according to claim 2 is characterized in that: The depth of the circular ring spacing is just enough to allow the clutch holder (6) to be inserted into the measuring sleeve in an adaptive manner, the lower frame (19) of the clutch holder (6) abuts against the inner bottom surface of the circular ring spacing, and the edge of the upper frame (18) is flush with the circular surface of the outer cylinder (2).

4. The measuring tool for the clutch retainer window spacing difference according to claim 1 is characterized in that: The fork-shaped pressing plate (9) further comprises a bolt (10); A circular hole is formed in the center of the fork-shaped pressing plate (9), and when the fork-shaped pressing plate (9) is aligned with the assembled clutch retainer (6) and the measuring sleeve, a bolt (10) is inserted into the circular hole and tightened toward the base of the inner cylinder (3), so that the fork-shaped pressing plate (9) presses the clutch retainer (6) firmly.

5. The measuring tool for the clutch retainer window spacing difference according to claim 4 is characterized in that: A long bolt (10) hole is provided in the base of the inner cylinder (3). When the bolt (10) of the fork-shaped pressure plate (9) is inserted into the base, the bolt (10) is inserted into the long bolt (10) hole.

6. The measuring tool for the clutch retainer window spacing difference according to claim 5, characterized in that: The measuring sleeve is rotatably connected to the mounting bracket (1), and a hand-pull type positioning component is provided on the mounting bracket (1); when the positioning component is pulled out, the measuring sleeve can rotate, and when the positioning component is reset, the measuring sleeve is limited and fixed.

7. The measuring tool for the clutch retainer window spacing difference according to claim 6, characterized in that: The positioning component comprises a sleeve (11), and an inner shaft and a spring (13) inserted inside the sleeve; The sleeve (11) is fixed to the mounting bracket (1), and the sleeve (11) has an inner cavity; The inner shaft is arranged in the sleeve (11), and a spring (13) is sleeved on the inner shaft, one end of the spring (13) abuts against the inner shaft, and the other end abuts against the inner end surface of the sleeve (11); the end of the inner shaft passes through the sleeve (11) and extends outward to connect with the handle (14); when the handle (14) is pulled outward, the inner shaft retracts in the sleeve (11) and compresses the spring (13); when the handle (14) is released, the inner shaft extends out due to the rebound of the spring (13).

8. The measuring tool for the clutch retainer window spacing difference according to claim 6, characterized in that: A plurality of positioning holes (15) are provided along the circumference of the measuring sleeve base. When the positioning component is reset, the inner shaft is inserted into the corresponding positioning hole (15) to fix the measuring sleeve.

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