Deflection instrument for transmission shaft assembly part detection

Abstract

The utility model discloses a deflection instrument for transmission shaft assembly part detection. A detection table is provided with a detection space and a first wire slot; the supporting plate is movably arranged above the detection table up and down, and an avoiding space corresponding to the detection space and a second wire slot are formed in the supporting plate; the centering and clamping mechanism is arranged on the detection table and comprises clamping pieces arranged on the two opposite sides of the detection space; a clamping space coaxial with the detection space is formed between the two clamping pieces; the rotating piece is rotationally arranged on the detection table around the central axis of the detection space; the rotating member is provided with a gauge stand which slides along a direction close to or away from the detection space. The dial indicator is arranged on the gauge stand and is provided with a contact end pointing to the detection space. The device can clamp and fix the transmission shaft in the radial direction and drive the dial indicator to rotate relative to the transmission shaft so as to realize the radial run-out detection of the transmission shaft, the overall detection is convenient and efficient, the detection requirements of transmission shaft assembly parts are effectively met, and the practicability is strong.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission shaft detection, in particular to a yaw meter for detecting transmission shaft assembly components. Background Art

[0002] At present, the radial runout error of shaft parts such as transmission shafts is tested by using a deflection meter. During the test, the two ends of the transmission shaft are positioned by two sets of centers, and the shaft part to be tested is rotated to perform the test using a dial indicator. Figure 1 The figure shows a transmission shaft assembly component of the prior art, in which universal joints 81 are installed at both ends of the transmission shaft 8, a cross shaft 82 is assembled on the universal joint 81, and another set of universal joints 81 is connected to the cross shaft 82. In this transmission shaft assembly component, since transmission components such as the universal joint 81 and the cross shaft 82 are installed at both ends of the transmission shaft 8, the top tip cannot tightly press the end face of the transmission shaft 8 into position, and thus it is difficult to use the aforementioned deflection meter to perform inspection operations on this type of transmission shaft assembly component. In addition, in some structural designs, the transmission shaft 8 and the universal joint 81 are integrally formed, and the universal joint 81 cannot be removed from the transmission shaft. Therefore, it is urgent to design a deflection meter to meet the radial runout detection needs of the transmission shaft assembly component. Utility Model Content

[0003] In response to the above-mentioned technical problems, the purpose of the utility model is to propose a runout meter for detecting drive shaft assembly components, which can clamp the drive shaft radially and drive the dial indicator to rotate relative to the drive shaft to realize radial runout detection of the drive shaft. The overall detection is convenient and efficient, effectively meets the detection requirements of drive shaft assembly components, and is highly practical.

[0004] The technical solution of the utility model is achieved as follows: a yaw meter for testing transmission shaft assembly components, including a testing platform, a supporting plate, a lifting drive, a centering clamping mechanism, a rotating part, and a dial indicator;

[0005] The detection table is provided with a detection space and a first wire groove extending from the edge to the detection space;

[0006] The support plate is movably arranged above the inspection table, and an avoidance space is provided on the support plate corresponding to the inspection space, and a second wire groove extending from the edge to the avoidance space is provided; the second wire groove corresponds to the first wire groove in the upper and lower directions;

[0007] The lifting drive is connected to the supporting plate and is used to drive the supporting plate to move up and down;

[0008] The centering clamping mechanism is arranged on the detection table, and includes clamping members arranged on opposite sides of the detection space, and a clamping driver for driving the two clamping members to move closer to or away from each other; a clamping space coaxial with the detection space is formed between the two clamping members;

[0009] The rotating member is arranged outside the detection space and is rotated around the central axis of the detection space on the detection table; the rotating member is provided with a dial base that slides in the direction of approaching or moving away from the detection space; a locking member is provided between the dial base and the rotating member for locking or unlocking the two to each other; the dial indicator is arranged on the dial base and has a contact end pointing to the detection space.

[0010] Furthermore, a V-shaped groove structure is provided on the opposite surface of the clamping member; the V-shaped groove structure extends along the central axis direction of the detection space.

[0011] Furthermore, the deflection meter includes a supporting base plate; the supporting base plate is arranged below the detection platform, and an upper and lower spacing is provided between the two; the lifting drive is arranged on the supporting base plate.

[0012] Furthermore, an annular groove is coaxially provided on the outer side of the detection space on the detection table; the first wire groove cuts through the annular groove in the up and down directions; the rotating part is an arc-shaped structure, with an opening position formed between its two ends; the rotating part is arranged in the annular groove, and the outer circumferential wall of the rotating part and the inner circumferential wall of the annular groove are gap-fitted; when the rotating part rotates to a preset position, the opening position corresponds to the first wire groove up and down; the deflection meter includes a pressure plate; the pressure plate is an arc-shaped structure, coaxially arranged above the rotating part, and detachably connected to the detection table; upper and lower limit fits are formed between the pressure plate and the rotating part.

[0013] Furthermore, the rotating member has an extension portion exposed above the annular groove; and a hand-grip structure is provided on the extension portion.

[0014] Furthermore, the locking member is a set screw; the set screw is threadedly connected to the rotating member and has an abutting end that abuts against the table base.

[0015] Furthermore, the clamping driver is arranged on the detection table and has two driving ends that move synchronously in opposite directions; the two driving ends are respectively connected to the clamping members on the corresponding sides.

[0016] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0017] 1. In the present invention, through the coordinated use of the first wire groove and the second wire groove, the transmission shaft assembly components can enter and exit the detection space through the first wire groove and the second wire groove to realize the loading and unloading of the transmission shaft assembly components, and the support plate can support the universal joint fork at the upper end of the transmission shaft to realize the preliminary fixation of the transmission shaft assembly components. Through the coordinated use of the centering clamping mechanism, the centering clamping and fixing of the transmission shaft can be realized. Through the coordinated use of the rotating part and the dial indicator, the rotating part can rotate around the transmission shaft in the detection space to drive the dial indicator to rotate to realize radial runout detection. The combination of the above methods can clamp the transmission shaft radially and drive the dial indicator to rotate relative to the transmission shaft to realize radial runout detection of the transmission shaft. The overall detection is convenient and efficient, effectively meets the detection requirements of the transmission shaft assembly components, and has strong practicality.

[0018] 2. The utility model drives the support plate to rise and fall to adjust the upper and lower positions of the transmission shaft assembly components relative to the dial indicator, so that different positions of the outer peripheral surface of the transmission shaft can be detected by the dial indicator. The upper and lower positions of the transmission shaft assembly components are easy to adjust, saving time and effort and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The technical solution of the utility model is further described below with reference to the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the transmission shaft assembly component in the prior art;

[0021] Figure 2 It is a three-dimensional structural diagram of the overall structure of the utility model;

[0022] Figure 3 for Figure 2 A schematic diagram of a three-dimensional structure from another perspective;

[0023] Figure 4 This is a schematic diagram of the assembly of the centering clamping mechanism and the rotating member of the present invention;

[0024] Figure 5 for Figure 4 Exploded view of;

[0025] Figure 6 It is a three-dimensional structural diagram of the rotating part and the dial indicator of the utility model;

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the utility model when used for detection;

[0027] Among them: 1. Inspection table; 11. Inspection space; 12. First wire trough; 13. Annular sink; 2. Support plate; 21. Avoidance space; 22. Second wire trough; 23. Lifting drive; 3. Clamping part; 31. V-groove structure; 32. Clamping drive; 4. Rotating part; 41. Hand-held structure; 5. Dial base; 51. Dial indicator; 6. Pressure plate; 7. Support base; 8. Drive shaft; 81. Universal joint fork; 82. Cross shaft. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0029] like Figure 2-7 The figure shows a yaw meter for detecting a transmission shaft assembly component according to this embodiment. The transmission shaft assembly component is a conventional structure of the prior art, including a transmission shaft 8 and transmission components installed at both ends of the transmission shaft 8, such as Figure 1 The transmission shaft assembly components shown. The deflection meter includes a supporting base plate 7, a detection platform 1, a support plate 2, a lifting drive 23, a centering clamping mechanism, a rotating part 4, and a dial indicator 51. Among them, the supporting base plate 7 and the detection platform 1 are arranged in an upper and lower interval, and an upper and lower spacing is formed between the two. The size of the upper and lower spacing is determined according to the actual design. The center position on the aforementioned detection platform 1 is processed with a detection space 11 and a first wire groove 12 that pass through the detection platform 1 from top to bottom. The detection space 11 has a central axis extending up and down. The first wire groove 12 extends from the front edge of the detection platform 1 to the detection space 11, so that the first wire groove 12 is connected to the detection space 11. The first wire groove 12 has a designed slot width, and through the first wire groove 12, the transmission shaft 8 can freely enter and exit the detection space 11 via the first wire groove 12. The aforementioned support plate 2 is movably installed above the detection platform 1. The lifting drive 23 is connected to the support plate 2 so as to be able to drive the support plate 2 to move up and down. Among them, an avoidance space 21 and a second wire groove 22 are processed on the pallet 2. The avoidance space 21 and the detection space 11 correspond to each other up and down, and the second wire groove 22 extends from the front edge of the pallet 2 to the avoidance space 21, so that the second wire groove 22 and the first wire groove 12 correspond to each other. The above-mentioned second wire groove 22 has a designed groove width so that the drive shaft 8 can freely enter and exit the avoidance space 21 through the second wire groove 22. Through the combination of the above methods, the drive shaft 8 can freely enter and exit the detection space 11 and the avoidance space 21 through the first wire groove 12 and the second wire groove 22. When the drive shaft 8 is placed in the detection space 11, the universal joint fork 81 at the upper end of the drive shaft 8 can be located above the pallet 2 and supported by the pallet 2.

[0030] Specifically, a guide rod is installed on the pallet 2, and a guide hole is processed on the inspection table 1. The guide rod is installed in the guide hole in a clearance fit manner so that it can move up and down in the guide hole. The aforementioned lifting drive 23 is installed on the supporting base plate 7, and a connecting piece is installed on the driving end of the lifting drive 23, which is connected to the bottom end of the guide rod. The driving end of the lifting drive 23 moves up and down, so as to drive the pallet 2 to move up and down. The lifting drive 23 is a linear drive mechanism, preferably a cylinder or an electric push rod. Through the above-mentioned structural design, when the pallet 2 moves up and down, it can drive the supported transmission shaft assembly components to move up and down.

[0031] The aforementioned centering clamping mechanism is installed on the detection platform 1, and includes a clamping member 3 and a clamping driver 32. Among them, the two clamping members 3 are arranged on opposite sides of the detection space 11 (the left and right sides in this embodiment). The clamping member 3 is slidably installed on the detection platform through a slide groove so as to be able to move in the direction close to or away from the detection space 11. A clamping space for clamping the drive shaft 8 is formed between the two clamping members 3. The clamping space is coaxially arranged with the detection space 11 so as to be able to center and clamp the drive shaft 8 in the detection space 11. Among them, the clamping driver 32 is installed on the rear side of the detection platform to drive the two clamping members 3 to move closer to or away from each other. The clamping driver 32 has two driving ends that move synchronously in opposite directions. The two driving ends are respectively connected to the clamping members 3 on the corresponding sides by long arms. The clamping driver 32 is a conventional component of the prior art, preferably a double-headed electric cylinder or a double-headed pneumatic cylinder.

[0032] The opposite surfaces of the clamping member 3 are machined with V-shaped groove structures 31. The V-shaped groove structure 31 extends along the central axis of the detection space 11, passing through the V-shaped groove structures 31 of the clamping member 3 on both sides, so that the transmission shaft 8 can be clamped and fixed between the two V-shaped groove structures 31.

[0033] In this embodiment, the aforementioned rotating member 4 is mounted outside the detection space 11 and is arranged to rotate on the detection platform 1 around the central axis of the detection space 11. Specifically, an annular groove 13 is coaxially machined on the detection platform 1 around the outside of the detection space 11. A first wire groove 12 cuts through the annular groove 13 in the vertical direction. The aforementioned rotating member 4 has an arc-shaped structure, with an opening formed between its two ends. The rotating member 4 is coaxially arranged in the annular groove 13, and the outer peripheral wall of the rotating member 4 is clearance-matched with the inner peripheral wall of the annular groove 13. When the rotating member 4 rotates to a preset position, the opening corresponds to the first wire groove 12 above and below, allowing the transmission shaft 8 to pass through the first wire groove 12 without obstruction. A pressure plate 6 is mounted on the rotating member 4. The pressure plate 6 has an arc-shaped structure, is coaxially mounted above the rotating member 4, and is connected to the detection platform 1 by screws. The pressure plate 6 forms upper and lower limit stops with the rotating member 4 to prevent the rotating member 4 from disengaging from the annular groove 13.

[0034] The aforementioned rotating member 4 is provided with a dial base 5 that slides in a direction approaching or moving away from the detection space 11. The dial indicator 51 is mounted on the dial base 5 and has a contact end pointing to the detection space 11. Through the above-mentioned structural design, when the rotating member 4 rotates, it can drive the dial indicator 51 to rotate around the detection space 11. The dial base 5 is slidably mounted on the rotating member 4 through a slide groove, and the position of the dial base 5 can be adjusted to adjust the position of the dial indicator 51 relative to the detection space 11. A locking member is installed between the dial base 5 and the rotating member 4 for locking or unlocking the two to each other, so that the dial base 5 can be fixed to the rotating member 4. The locking member is a set screw. The set screw is threadedly connected to the rotating member 4, and has an abutting end that abuts with the dial base 5. The set screw abuts with the dial base 5 to lock the dial base 5. After assembly, the rotating member 4 has an extension portion exposed above the annular recess 13 , and a hand-grip structure 41 is processed on the extension portion. By holding the hand-grip structure 41 , the rotating member 4 can be stably pushed to rotate.

[0035] During specific testing, insert the transmission shaft assembly into the first wire groove 12 and the second wire groove 22, and place it in the testing space 11. Support the universal joint fork 81 at the upper end of the transmission shaft 8 on the support plate 2 to achieve preliminary fixation of the transmission shaft assembly. Drive the support plate 2 up and down to adjust the upper and lower positions of the transmission shaft 8 relative to the dial indicator 51. Drive the two clamping parts 3 to move synchronously through the clamping driver 32 to center and clamp the transmission shaft 8. Adjust the position of the dial indicator 5 so that the contact end of the dial indicator 51 contacts the outer peripheral surface of the transmission shaft 8, and then lock the dial indicator 5. Push the rotating part 4 to rotate,

[0036] This can drive the dial indicator 51 to rotate to achieve radial runout detection. After the detection is completed, the clamping member 3 is loosened, and the support plate 2 is driven to move up and down to adjust the vertical position of the transmission shaft assembly relative to the dial indicator 51, so that different positions of the outer peripheral surface of the transmission shaft 8 can be detected through the dial indicator 51. The combination of the above methods can clamp the transmission shaft 8 in the radial direction and drive the dial indicator 51 to rotate relative to the transmission shaft 8 to achieve radial runout detection of the transmission shaft 8. The overall detection is convenient and efficient, the vertical position adjustment of the transmission shaft assembly is convenient, saving time and effort, effectively meeting the detection requirements of the transmission shaft assembly components, and having strong practicality.

[0037] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A yaw meter for testing transmission shaft assembly components, comprising a testing platform, a support plate, a lifting drive, a centering clamping mechanism, a rotating member, and a dial indicator; characterized in that: The detection table is provided with a detection space and a first wire groove extending from the edge to the detection space; The support plate is movably arranged above the inspection table, and an avoidance space is provided on the support plate corresponding to the inspection space, and a second wire groove extending from the edge to the avoidance space is provided; the second wire groove corresponds to the first wire groove in the upper and lower directions; The lifting drive is connected to the supporting plate and is used to drive the supporting plate to move up and down; The centering clamping mechanism is arranged on the detection table, and includes clamping members arranged on opposite sides of the detection space, and a clamping driver for driving the two clamping members to move closer to or away from each other; a clamping space coaxial with the detection space is formed between the two clamping members; The rotating member is arranged outside the detection space and is rotated around the central axis of the detection space on the detection table; the rotating member is provided with a dial base that slides in the direction of approaching or moving away from the detection space; a locking member is provided between the dial base and the rotating member for locking or unlocking the two to each other; the dial indicator is arranged on the dial base and has a contact end pointing to the detection space.

2. The yaw meter for detecting transmission shaft assembly components according to claim 1, characterized in that: A V-shaped groove structure is provided on the opposite surface of the clamping member; the V-shaped groove structure extends along the central axis direction of the detection space.

3. The yaw meter for detecting transmission shaft assembly components according to claim 1, characterized in that: The deflection meter includes a supporting base plate; the supporting base plate is arranged below the detection platform, and an upper and lower spacing is provided between the two; the lifting driver is arranged on the supporting base plate.

4. The yaw meter for detecting transmission shaft assembly components according to claim 1, characterized in that: An annular groove is coaxially provided on the outer side of the detection space on the detection table; the first wire groove cuts through the annular groove in the up and down directions; the rotating part is an arc-shaped structure, with an opening position formed between its two ends; the rotating part is arranged in the annular groove, and the outer circumferential wall of the rotating part and the inner circumferential wall of the annular groove are gap-fitted; when the rotating part rotates to a preset position, the opening position corresponds to the first wire groove up and down; the deflection meter includes a pressure plate; the pressure plate is an arc-shaped structure, coaxially arranged above the rotating part, and detachably connected to the detection table; upper and lower limit fits are formed between the pressure plate and the rotating part.

5. The yaw meter for testing transmission shaft assembly components according to claim 4, characterized in that: The rotating member has an extension portion exposed above the annular sink; a hand-grip structure is provided on the extension portion.

6. The yaw meter for testing transmission shaft assembly components according to claim 1, characterized in that: The locking member is a set screw; the set screw is threadedly connected to the rotating member and has an abutting end that abuts and cooperates with the meter base.

7. The yaw meter for testing transmission shaft assembly components according to claim 1, characterized in that: The clamping driver is arranged on the detection table and has two driving ends which move synchronously in opposite directions; the two driving ends are respectively connected to the clamping members on the corresponding sides.

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