Shaft shoulder radial run-out detection device for end face disc tooth type part

Abstract

The utility model provides an end face disc tooth type part shaft shoulder radial run-out detection device, relates to the radial run-out detection field, and adopts the scheme that the end face disc tooth type part shaft shoulder radial run-out detection device comprises a detection assembly which is arranged opposite to a shaft shoulder of a part to be detected, and further comprises a rotating assembly which comprises a mounting disc and a connecting shaft, the end face of the mounting disc is provided with a plurality of meshing teeth, and the connecting shaft is connected with the mounting disc; the meshing teeth can be meshed with teeth of a to-be-tested part, the mounting disc is detachably connected with the to-be-tested part, and the connecting shaft is of a shaft-shaped structure; and the supporting assembly comprises a base, and the connecting shaft is rotatably arranged in the base. According to the utility model, the relative radial run-out error of the shaft shoulder and the end face tooth of the end face disc tooth part can be detected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of radial runout detection, especially to a shaft shoulder radial runout detection device for end face disc gear type parts. BACKGROUND

[0002] The end face disc gear type part is a transmission component used between intersecting shafts or staggered shafts, can realize power transmission between shafts at different angles, and is commonly used in mechanical structures that need to change the transmission direction, such as the transmission system of a helicopter and the transmission device of a high-end bicycle. The end face disc gear type part usually comprises an end face gear, a disc body and a connecting shaft, and a shaft shoulder for mounting a bearing is further arranged on the connecting shaft. While ensuring that the end face gear has high machining precision, the relative error between the shaft shoulder and the end face gear should also be ensured. The step surface is used for assembling an intermediate support assembly, and the relative error between the step surface and the end face gear will have a great influence on the intermediate support assembly in terms of bearing radial force, reducing vibration and noise, compensating for installation error and transmission precision.

[0003] In the prior art, a Chinese invention patent with the patent application publication number CN108917522A discloses a shaft part radial runout detection device, which comprises a base, a first thimble frame, a sliding seat, a second thimble frame, a measuring mechanism, an anti-rust mechanism, a mounting seat, a first sliding groove, a sliding rail and other components. When in use, the center of one end of the shaft part is aligned with the second thimble, then the first thimble frame is moved, the other end center of the shaft part is aligned by the first thimble, the first thimble frame is fixed, the first threaded rod is tightened to the shaft part by rotating the first hand wheel, the measuring mechanism is moved as a whole, is fixed after reaching a suitable position, and then the radial runout error is measured by rotating the shaft part.

[0004] Although the above detection method can measure the radial runout error of the shaft shoulder of the end face disc gear type part, the influence of the end face gear is not calculated in the above measurement method because the shaft part is clamped by two thimbles during measurement, so the relative radial runout error between the shaft shoulder and the end face gear cannot be detected. UTILITY MODEL CONTENTS

[0005] In order to solve the technical problem that the shaft part radial runout detection device in the prior art cannot detect the relative radial runout error between the shaft shoulder and the end face gear, the utility model provides a shaft shoulder radial runout detection device for end face disc gear type parts, which can detect the relative radial runout error between the shaft shoulder and the end face gear.

[0006] The utility model discloses a technical scheme that is adopted to solve the above technical problems, which is an axial shoulder radial run-out detection device for end face disc gear type parts, comprising a detection assembly, the detection assembly is oppositely arranged with the axial shoulder of a part to be detected, further comprising: a rotating assembly, the rotating assembly comprises a mounting disc and a connecting shaft, a plurality of meshing teeth are arranged on the end face of the mounting disc, the meshing teeth can be engaged with the teeth of the part to be detected, the mounting disc can be detachably connected with the part to be detected, and the connecting shaft is in the form of a shaft.

[0007] The utility model discloses a mounting disc with meshing teeth is engaged with the end face teeth of the part to be detected, and the end face teeth manufacturing error of the part to be detected can be projected in radial run-out detection when detecting radial run-out, the detection of relative radial run-out error is realized, and the production and manufacturing requirements of end face disc gear type parts are more satisfied.

[0008] Further, the plurality of meshing teeth are evenly distributed on the entire end face of the mounting disc or distributed in a local area of the end face of the mounting disc.

[0009] Further, the mounting disc is detachably connected with the connecting shaft.

[0010] The utility model discloses a mounting disc with meshing teeth is engaged with the end face teeth of the part to be detected, and the end face teeth manufacturing error of the part to be detected can be projected in radial run-out detection when detecting radial run-out, the detection of relative radial run-out error is realized, and the production and manufacturing requirements of end face disc gear type parts are more satisfied.

[0011] Further, the mounting disc is detachably connected with the connecting shaft.

[0012] The utility model discloses a mounting disc with meshing teeth is engaged with the end face teeth of the part to be detected, and the end face teeth manufacturing error of the part to be detected can be projected in radial run-out detection when detecting radial run-out, the detection of relative radial run-out error is realized, and the production and manufacturing requirements of end face disc gear type parts are more satisfied.

[0013] Further, the connecting hole comprises a large part, an intermediate part and a small part in sequence along the radial direction of the mounting disc, the edges of the large part and the small part are in the form of arc structure, the diameter of the small part is smaller than that of the large part, the edge of the intermediate part is in the form of straight line structure, and the edges of the intermediate part are tangent to the edges of the large part and the small part respectively.

[0014] The utility model discloses a mounting disc with meshing teeth is engaged with the end face teeth of the part to be detected, and the end face teeth manufacturing error of the part to be detected can be projected in radial run-out detection when detecting radial run-out, the detection of relative radial run-out error is realized, and the production and manufacturing requirements of end face disc gear type parts are more satisfied.

[0015] Further, the base is rotatably provided with a supporting sleeve, the supporting sleeve is provided with a conical inner hole, the connecting shaft is a conical structure, and the supporting sleeve is in interference fit with the connecting shaft.

[0016] The connecting shaft and the supporting sleeve are conically matched, axial movement of the rotating assembly is avoided, and measurement accuracy is improved.

[0017] Further, the base is provided with a convex mounting cavity, the mounting cavity comprises a containing cavity and a limiting cavity, the containing cavity is provided with a first bearing and a second bearing, and the first bearing and the second bearing are both sleeved on the supporting sleeve.

[0018] The first bearing and the second bearing are arranged to ensure stable rotation of the supporting sleeve, and the stable rotation of the supporting sleeve avoids affecting measurement accuracy.

[0019] Further, one end of the supporting sleeve close to the mounting disc is provided with a limiting boss, the limiting boss is in abutment with the first bearing, a first positioning sleeve is arranged between outer rings of the first bearing and the second bearing, a second positioning sleeve is arranged between inner rings of the first bearing and the second bearing, the second positioning sleeve is in clearance fit with the supporting sleeve, the limiting cavity is provided with a limiting ring and a bearing end cover, the limiting ring is sleeved on the other end of the supporting sleeve and is in threaded connection with the supporting sleeve, an end surface of the limiting ring is in abutment with the inner ring of the second bearing, the bearing end cover is sleeved on the limiting ring, the bearing end cover is in abutment with the outer ring of the second bearing, and the bearing end cover is in bolt connection with the base.

[0020] The supporting sleeve, the first positioning sleeve, the second positioning sleeve, the bearing end cover and the limiting ring are arranged to limit the two bearings and prevent axial movement of the two bearings.

[0021] Further, the containing cavity is provided with a sealing groove, the sealing groove is provided with a sealing ring, and the sealing ring is coaxially arranged with the limiting boss.

[0022] The sealing ring is arranged to prevent impurities from entering the inside of the supporting assembly, to avoid abrasion and to affect detection accuracy.

[0023] Further, the detection assembly comprises a dial gauge and a universal magnetic seat.

[0024] The universal magnetic seat is adopted to adjust the position of the dial gauge according to the position of the shaft shoulder of the part to be measured, and the dial gauge is more flexible to use.

[0025] From the above technical solutions, it can be seen that the utility model has the following advantages:

[0026] The utility model provides a kind of end face disc tooth class parts shaft shoulder radial runout detection device, by being provided with the installation disc with meshing tooth and the end face tooth of the part to be measured meshing and connection, it can be in the detection radial runout, the end face tooth manufacturing error of the part to be measured is projected in radial runout detection, realize the detection of relative radial runout error, more satisfy the production and manufacturing requirement of end face disc tooth class parts;By detachable connection, the replacement of installation disc is realized, can make the device satisfy different sizes and types of end face disc tooth class parts use;By using the connecting hole of diameter gradual change, the position of connecting bolt can be adjusted according to the hole position and hole diameter on different parts to be measured, and more types of parts to be measured are adapted, the application range of rotating assembly is improved;By using conical fit between connecting shaft and support sleeve, axial movement of rotating assembly can be avoided, and measurement accuracy is improved;By setting first bearing and second bearing, support sleeve is ensured to rotate stably, and measurement accuracy is not affected by unstable rotation of support sleeve;Two bearings are limited by support sleeve, first positioning sleeve, second positioning sleeve, bearing end cover and limit ring, to prevent axial movement;By setting sealing ring, impurities are prevented from entering the inside of support assembly, causing abrasion and affecting detection accuracy;By using universal magnetic seat, the position of dial gauge can be adjusted according to the position of shaft shoulder of part to be measured, and use is more flexible. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme of the utility model, the following will be briefly introduced the drawings needed to be used in description, obviously, the drawings in the following description only some embodiments of the utility model, for those skilled in the art, without creative labor, other drawings can also be obtained according to these drawings.

[0028] Figure 1 It is the structural diagram of the embodiment of the utility model.

[0029] Figure 2 It is the structural diagram of the base in the embodiment of the utility model.

[0030] Figure 3 It is the structural diagram of the support sleeve in the embodiment of the utility model.

[0031] Figure 4 It is the structural diagram of the rotating assembly in the embodiment of the utility model.

[0032] Figure 5 It is the structural diagram of the connecting hole in the embodiment of the utility model.

[0033] In the figure, 1, base; 101, containing cavity; 102, limiting cavity; 103, sealing groove; 2, support sleeve; 201, limiting boss; 3, mounting disc; 301, meshing tooth; 302, connecting hole; 3021, large part; 3022, middle part; 3023, small part; 4, bearing end cover; 5, second positioning sleeve; 6, first positioning sleeve; 7, second bearing; 8, first bearing; 9, connecting shaft; 10, limiting ring; 12, sealing ring. DETAILED DESCRIPTION

[0034] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the utility model will be described clearly and completely in combination with the drawings in the specific embodiment. Obviously, the following described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the patent, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the patent.

[0035] As shown in Figure 1 and Figure 4 , the specific embodiment provides a radial runout detection device for end face disc tooth parts, which comprises a detection assembly, a rotating assembly and a supporting assembly, the detection assembly is arranged opposite to the shaft shoulder of the part to be detected, the rotating assembly comprises a mounting disc 3 and a connecting shaft 9, the mounting disc 3 is provided with a plurality of meshing teeth 301 on the end face, the meshing teeth 301 can be engaged with the teeth of the part to be detected, and the connecting shaft 9 is in the form of a shaft; the supporting assembly comprises a base 1, and the connecting shaft 9 is rotatably arranged in the base 1; in the specific embodiment, the mounting disc 3 is horizontally arranged, the connecting shaft 9 is vertically arranged, the base 1 is arranged below the rotating assembly, and the detection assembly is arranged on one side of the supporting assembly.

[0036] The specific embodiment replaces the existing technology of mounting the part to be detected by two jacks by arranging the mounting disc 3 with meshing teeth 301 to engage and connect with the end face teeth of the part to be detected, so that the manufacturing error of the end face teeth of the part to be detected can be projected in the radial runout detection when detecting the radial runout, the relative radial runout error can be detected, and the production and manufacturing requirements of the end face disc tooth parts are better met.

[0037] The end face disc tooth type part is divided into two categories according to the distribution of the end face tooth, one of which is that the end face is uniformly provided with teeth, and the other of which is that the end face is symmetrically provided with teeth in a local area. Therefore, the meshing teeth 301 of the mounting disc 3 can be set to be uniformly distributed on the entire end face of the mounting disc 3 or distributed on a local area of the end face of the mounting disc 3 according to needs. At the same time, the structure and size of the teeth of the end face disc tooth type part are different, so as to improve the universality of the device, the mounting disc 3 and the connecting shaft 9 are detachably connected. The mounting disc 3 and the connecting shaft 9 can be connected through a screw sleeve or a spline, and in the specific embodiment, the two are connected through a screw sleeve.

[0038] As shown in Figure 4 and Figure 5 , in the specific embodiment, in order to realize reliable connection, the position where the meshing teeth 301 are arranged on the mounting disc 3 is provided with a connecting hole 302, the opening direction of the connecting hole 302 is parallel to the axis of the connecting shaft 9, the connecting hole 302 is provided with a connecting bolt, the connecting bolt penetrates the hole on the end face of the measured part, and reliable connection of the measured part is realized. In addition, it can be understood that some special end face disc tooth type parts do not have corresponding hole positions, at which time only the meshing of the measured part and the mounting disc 3 is required, and slow rotation is required during detection. Since the holes of the measured parts of different diameters are different in size and diameter, in order to improve the application range of each mounting disc 3, in the specific embodiment, the connecting hole 302 includes a large part 3021, an intermediate part 3022 and a small part 3023 which are connected in sequence along the radial direction of the mounting disc 3, the edges of the large part 3021 and the small part 3023 are arc structures, the diameter of the small part 3023 is smaller than that of the large part 3021, the edge of the intermediate part 3022 is a straight line structure, and the edges of the intermediate part 3022 are tangent to the edges of the large part 3021 and the small part 3023 at both ends. By adopting the connecting hole 302 with gradually changing diameter, the position of the connecting bolt can be adjusted to adapt to more types of measured parts, thereby improving the application range of the mounting disc 3 or the rotating assembly.

[0039] As shown in Figure 1 , Figure 3 and Figure 4 , further, in order to avoid axial movement of the rotating assembly due to bearing different parts, which affects the detection accuracy, in the specific embodiment, a support sleeve 2 is rotatably arranged in the base 1, the support sleeve 2 is vertically arranged, the support sleeve 2 is provided with a conical inner hole, the connecting shaft 9 is a conical structure, and the support sleeve 2 and the connecting shaft 9 are in interference fit.

[0040] As shown in Figure 1 , Figure 2 and Figure 3To ensure the stable rotation of the support sleeve 2 in the base 1, in the specific embodiment, a convex mounting cavity is arranged in the base 1, which sequentially comprises a containing cavity 101 and a limiting cavity 102 from top to bottom. The containing cavity 101 is in a convex structure, and a first bearing 8 and a second bearing 7 are arranged in the larger cavity of the containing cavity 101. The first bearing 8 and the second bearing 7 are both sleeved on the support sleeve 2. The first bearing 8 and the second bearing 7 ensure the stable rotation of the support sleeve 2, avoiding the unstable rotation of the support sleeve 2 affecting the measurement accuracy. Furthermore, to limit the two bearings, a limiting boss 201 is arranged at one end of the support sleeve 2 close to the mounting disc 3. The limiting boss 201 is located in a small part 3023 of the containing cavity 101. The lower surface of the limiting boss 201 abuts against the inner ring of the first bearing 8. A first positioning sleeve 6 is arranged between the outer rings of the first bearing 8 and the second bearing 7. A second positioning sleeve 5 is arranged between the inner rings of the first bearing 8 and the second bearing 7. The second positioning sleeve 5 is in clearance fit with the support sleeve 2. The limiting cavity 102 is provided with a limiting ring 10 and a bearing end cover 4. The limiting ring 10 is sleeved on the other end of the support sleeve 2 and is threadedly connected with the support sleeve 2. The end surface of the limiting ring 10 abuts against the inner ring of the second bearing 7. The bearing end cover 4 is sleeved on the limiting ring 10, and the inner side of the bearing end cover 4 abuts against the outer ring of the second bearing 7. The bearing end cover 4 is bolted with the base 1. Specifically, the bearing end cover 4 is connected with the top surface of the limiting cavity 102 through bolts. During the tightening of the limiting ring 10, the limiting ring 10 is constantly pressed against the inner ring of the second bearing 7, and the limiting boss 201 of the support sleeve 2 is constantly pressed against the inner ring of the first bearing 8, so that the two bearings and the two positioning sleeves are tightly pressed between the limiting boss 201 and the limiting ring 10.

[0041] As shown in Figure 1 and Figure 2 To avoid the entry of external impurities into the support assembly and cause wear and affect the rotation stability of the rotating assembly, the containing cavity 101 is provided with a sealing groove 103, and the sealing groove 103 is provided with a sealing ring 12. The sealing ring 12 is coaxially arranged with the limiting boss 201, and the sealing ring 12 is made of felt.

[0042] To further improve the use flexibility, the detection assembly comprises a dial gauge and a universal magnetic seat. The universal magnetic seat is arranged on one side of the base 1 and can be magnetically attracted to the test bench. The height and radial distance of the dial gauge from the measured part can be adjusted, and it is suitable for measuring parts of different sizes. The universal magnetic seat is a product that can be purchased on the market, and its structure and principle will not be described herein.

[0043] The working process of the detection device is as follows:

[0044] According to the profile of the part to be measured, install the appropriate mounting disc 3; engage the part to be measured with the mounting disc 3 and connect through the connecting bolt; adjust the position of the universal magnetic seat so that the pointer of the dial gauge is perpendicular to the axis of the part to be measured and in contact with the shaft shoulder thereof; rotate the part to be measured or the mounting disc 3, and observe the rotation of the dial gauge needle.

[0045] From the above specific embodiments, the utility model has the following beneficial effects:

[0046] 1. By setting the mounting disc 3 with the engagement tooth 301 to engage and connect with the end surface tooth of the part to be measured, the manufacturing error of the end surface tooth of the part to be measured can be projected in the radial runout detection when detecting the radial runout, realizing the detection of the relative radial runout error, and better meeting the production and manufacturing requirements of the end surface disc tooth parts;

[0047] 2. The mounting disc 3 can be replaced through detachable connection, so that the device can meet the use of end surface disc tooth parts of different sizes and types;

[0048] 3. By using the diameter-gradually-changing connecting hole 302, the position of the connecting bolt can be adjusted according to the hole position and hole diameter on different parts to be measured, and the device can be adapted to more types of parts to be measured, thereby improving the application range of the rotating assembly;

[0049] 4. By adopting the conical fit between the connecting shaft 9 and the support sleeve 2, the axial movement of the rotating assembly can be avoided, and the measurement accuracy is improved;

[0050] 5. By setting the first bearing 8 and the second bearing 7, the stable rotation of the support sleeve 2 is ensured, and the influence of unstable rotation of the support sleeve 2 on the measurement accuracy is avoided;

[0051] 6. The two bearings are limited in the axial direction by the support sleeve 2, the first positioning sleeve 6, the second positioning sleeve 5, the bearing end cover 4 and the limiting ring 10;

[0052] 7. By setting the sealing ring 12, impurities can be prevented from entering the inside of the support assembly, causing wear and affecting the detection accuracy; by using the universal magnetic seat, the position of the dial gauge can be adjusted according to the position of the shaft shoulder of the part to be measured, and the device is more flexible to use.

[0053] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for detecting radial runout of a shoulder of an end face disc gear type part, comprising a detection assembly, the detection assembly being arranged opposite the shoulder of the part to be detected, characterized in that, Also include: The rotating assembly includes a mounting disc (3) and a connecting shaft (9), the mounting disc (3) end face is provided with a plurality of meshing teeth (301), the meshing teeth (301) can be engaged with the teeth of the part to be tested, the connecting shaft (9) is the shaft structure; The support assembly includes a base (1), the connecting shaft (9) is rotatably arranged in the base (1).

2. The shoulder runout detection device for end face disc tooth type parts according to claim 1, wherein A plurality of the meshing teeth (301) are uniformly distributed on the whole end face of the mounting disc (3) or in the local area of the end face of the mounting disc (3).

3. The shoulder runout detection device for end face disc tooth type parts according to claim 2, wherein The mounting disc (3) is detachably connected with the connecting shaft (9).

4. The shoulder runout detection device for end face disc tooth parts according to any one of claims 1 to 3, characterized in that, The position of the mounting disc (3) provided with the meshing tooth (301) is provided with a connecting hole (302), the opening direction of the connecting hole (302) is parallel to the axis of the connecting shaft (9).

5. The shoulder runout detection device for end face disc tooth type parts according to claim 4, wherein The connecting hole (302) includes a large part (3021), an intermediate part (3022) and a small part (3023) in sequence along the radial direction of the mounting disc (3), the edges of the large part (3021) and the small part (3023) are arc structures, the diameter of the small part (3023) is smaller than that of the large part (3021), the edge of the intermediate part (3022) is a straight line structure, and the edges of the intermediate part (3022) are tangent to the edges of the large part (3021) and the small part (3023) respectively.

6. The shoulder runout detection device for end face disc tooth type parts as claimed in claim 4, wherein The base (1) is rotatably provided with a support sleeve (2), the support sleeve (2) is provided with a tapered inner hole, the connecting shaft (9) is a tapered structure, and the support sleeve (2) is in interference fit with the connecting shaft (9).

7. The shoulder runout detecting device for end face disc tooth type parts according to claim 6, wherein The base (1) is provided with a convex mounting cavity, the mounting cavity includes a containing cavity (101) and a limiting cavity (102), the containing cavity (101) is provided with a first bearing (8) and a second bearing (7), and the first bearing (8) and the second bearing (7) are sleeved on the support sleeve (2).

8. The shoulder runout detecting device for end face disc tooth type parts according to claim 7, wherein The end of the support sleeve (2) close to the mounting disc (3) is provided with a limiting boss (201), the limiting boss (201) abuts against the first bearing (8), a first positioning sleeve (6) is arranged between the outer rings of the first bearing (8) and the second bearing (7), a second positioning sleeve (5) is arranged between the inner rings of the first bearing (8) and the second bearing (7), the second positioning sleeve (5) is in clearance fit with the support sleeve (2), the limiting cavity (102) is provided with a limiting ring (10) and a bearing end cover (4), the limiting ring (10) is sleeved on the other end of the support sleeve (2) and is in threaded connection with the support sleeve (2), the end face of the limiting ring (10) abuts against the inner ring of the second bearing (7), the bearing end cover (4) is sleeved on the limiting ring (10), the bearing end cover (4) abuts against the outer ring of the second bearing (7), and the bearing end cover (4) is bolted with the base (1).

9. The shoulder runout detecting device for end face disc tooth type parts according to claim 8, wherein The accommodating cavity (101) is provided with a sealing groove (103), the sealing groove (103) is provided with a sealing ring (12), and the sealing ring (12) is coaxially arranged with the limiting boss (201).

10. The shoulder runout detection apparatus for end face disc tooth type parts as set forth in claim 1, characterized in that, The detection assembly comprises a dial indicator and a universal magnetic seat.

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