Spline shaft strength testing device

Abstract

The utility model discloses a spline shaft strength test device, comprising a fixed base, the top end of which is fixedly connected with a support frame; the lifting assembly is arranged on the inner side of the supporting frame; the torsion assembly is arranged on the inner side of the fixed base; and the clamping assembly is arranged on one side of the lifting assembly and at the top end of the torsion assembly. Compared with the prior art, the clamping device has the advantages that the spline shaft can be stably clamped in a multi-point mode, and tooth clamping damage during torsion of the spline shaft is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of component detection, in particular to a spline shaft strength testing device. Background Art

[0002] As a key transmission component in most equipment, the strength of spline shafts is a critical characteristic that manufacturers must control. Each spline shaft, a crucial functional component, undergoes strength testing before entering storage or leaving the factory to verify that the spline strength meets requirements. Traditional manual inspection methods are inefficient, subject to large errors, and offer unreliable results. Furthermore, manual clamping can easily damage the surface of functional components, thus requiring improvement.

[0003] However, the patents under the existing technology have the following disadvantages:

[0004] (1) The clamping structure of the existing utility model spline shaft strength test device is unstable. Since the outer side of the spline shaft is provided with teeth, and the clamping structure of the existing spline shaft strength test device is mostly double-sided clamping, when clamping, it cannot adapt to the teeth on the outer side of the spline shaft, resulting in unstable clamping during torsion testing and easy damage to the teeth on the outer side of the spline shaft. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the above technical defects and provide a spline shaft strength testing device which can stably clamp the spline shaft at multiple points and prevent the teeth from being damaged when the spline shaft is twisted.

[0006] In order to solve the above problems, the technical solution of the utility model is: a spline shaft strength test device, comprising:

[0007] A fixed base, wherein the top of the fixed base is fixedly connected to a support frame;

[0008] A lifting assembly, the lifting assembly being arranged inside the support frame;

[0009] A torsion assembly, wherein the torsion assembly is arranged inside the fixed base;

[0010] The clamping assembly is arranged on one side of the lifting assembly and the top of the torsion assembly.

[0011] Furthermore, the lifting assembly includes

[0012] Motor 1, said motor 1 is fixedly mounted on the top of the support frame;

[0013] A screw rod, the screw rod is rotatably connected to the inner side of the support frame, and the screw rod is connected to the bottom end of a drive shaft of the motor;

[0014] A limiting rod, the limiting rod being fixedly connected to the inner side of the support frame;

[0015] The lifting frame is slidably connected to the outside of the limiting rod, and the lifting frame is threadedly connected to the lead screw.

[0016] Furthermore, the torsion assembly includes

[0017] Motor 2, said motor 2 being fixedly mounted on the rear side of the support frame;

[0018] Gear 1, said gear 1 being fixedly connected to the bottom end of the driving shaft of motor 2;

[0019] A first rotating shaft, wherein the first rotating shaft is rotatably connected to the inner side of the fixed base;

[0020] Gear 2, said gear 2 being fixedly connected to the outer side of the rotating shaft 1 and meshing with gear 1;

[0021] Gear three, said gear three being fixedly connected to the outer side of the rotating shaft one;

[0022] A second rotating shaft, the second rotating shaft being rotatably connected to the inner side of the fixed base;

[0023] Gear 4, said gear 4 being fixedly connected to the outer side of the rotating shaft 2 and meshing with gear 3;

[0024] The fixed disk is fixedly connected to the second top end of the rotating shaft.

[0025] Furthermore, the clamping assembly includes

[0026] There are two fixing rings, one of which is fixedly connected to the top of the fixed plate and the other is arranged on one side of the lifting frame. A transmission compartment is opened inside the fixing ring;

[0027] Partition plate 1, there are two partition plates and they are fixedly connected to the top and bottom of the transmission compartment respectively, and each partition plate has a straight groove extending therethrough;

[0028] Partition plate 2, there are two partition plates 2 and are arranged between the two partition plates 1. The partition plate 2 is fixedly connected to the transmission compartment and has an arc groove running through it;

[0029] A first fixed shaft, wherein the first fixed shaft is fixedly connected between the second partition plates;

[0030] An electric push rod, wherein a fixed end of the electric push rod is rotatably connected to an outer side of the fixed shaft;

[0031] A transmission plate, the transmission plate being rotatably connected between the first partition plate and the second partition plate, the transmission plate being provided with a through-going oblique groove;

[0032] A second fixed shaft, the second fixed shaft being fixedly connected between the transmission plates and slidably connected to the arc groove, and the second fixed shaft being rotatably connected to the driving end of the electric push rod;

[0033] A clamping frame, wherein a slide groove is provided on the inner side of the transmission bin, the clamping frame is slidably connected to the inner side of the slide groove, a connecting shaft is fixedly connected to the inner side of the clamping frame, the connecting shaft is adapted to the straight groove and the oblique groove and is slidably connected to the straight groove and the oblique groove, and a slot is provided on one side of the clamping frame, and a tooth adapted to the spline shaft can be inserted into the inner side of the slot;

[0034] A connecting block is fixedly connected to one side of a fixing ring on one side of the lifting frame. A connecting groove is provided on the inner side of the lifting frame. The connecting block is rotatably connected to the inner side of the connecting groove. Pressure sensors are fixedly installed on both sides of the connecting block.

[0035] The advantages of this utility model compared with the existing technology are:

[0036] (1) The clamping assembly of a spline shaft strength test device of the present invention is provided with a plurality of clamping frames, each of which can be equipped with matching teeth according to the teeth on the outer side of the spline shaft. The multi-point adaptive clamping can improve the stability of the spline shaft clamping and prevent damage to the teeth on the outer side of the spline shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a three-dimensional spline shaft strength test device of the utility model. Figure 1 .

[0038] Figure 2 This is a three-dimensional spline shaft strength test device of the utility model. Figure 2 .

[0039] Figure 3 This is a cross-sectional view of a spline shaft strength test device of the utility model. Figure 1 .

[0040] Figure 4 It is an enlarged view of A of a spline shaft strength testing device of the present invention.

[0041] Figure 5 This is a cross-sectional view of a spline shaft strength test device of the utility model. Figure 2 .

[0042] Figure 6 This is a cross-sectional view of a spline shaft strength test device of the utility model. Figure 3 .

[0043] Figure 7 This is a cross-sectional view of a spline shaft strength test device of the utility model. Figure 4 .

[0044] Figure 8 This is a cross-sectional view of a spline shaft strength test device of the utility model. Figure 5 .

[0045] Figure 9 This is a cross-sectional view of a spline shaft strength test device of the utility model. Figure 6 .

[0046] Figure 10 The utility model is a three-dimensional diagram of a transmission disk of a spline shaft strength testing device.

[0047] Figure 11 It is a three-dimensional diagram of a clamping frame of a spline shaft strength testing device of the present invention.

[0048] As shown in the figure: 1. Fixed base; 2. Support frame; 3. Lifting assembly; 301. Motor 1; 302. Screw; 303. Limit rod; 304. Lifting frame; 4. Torsion assembly; 401. Motor 2; 402. Gear 1; 403. Rotating axis 1; 404. Gear 2; 405. Gear 3; 406. Rotating axis 2; 407. Gear 4; 408. Fixed plate; 5. Clamping assembly; 501. Fixed Ring; 502, partition plate 1; 503, linear groove; 504, partition plate 2; 505, arc groove; 506, fixed shaft 1; 507, electric push rod; 508, transmission plate; 509, oblique groove; 510, fixed shaft 2; 511, slide groove; 512, clamping frame; 513, connecting shaft; 514, slot; 515, latching tooth; 516, connecting groove; 517, connecting block; 518, pressure sensor. DETAILED DESCRIPTION

[0049] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0050] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0051] Example 1:

[0052] like Figures 1 to 11As shown, a spline shaft strength testing device includes: a fixed base 1, a lifting assembly 3, a torsion assembly 4 and a clamping assembly 5. The top of the fixed base 1 is fixedly connected to a support frame 2, the lifting assembly 3 is arranged on the inner side of the support frame 2, the torsion assembly 4 is arranged on the inner side of the fixed base 1, and the clamping assembly 5 is arranged on one side of the lifting assembly 3 and the top of the torsion assembly 4.

[0053] The lifting assembly 3 includes a motor 301, a screw rod 302, a limit rod 303 and a lifting frame 304. The motor 301 is fixedly installed on the top of the support frame 2, the screw rod 302 is rotatably connected to the inner side of the support frame 2, the screw rod 302 and the bottom end of the motor 301 drive shaft, the limit rod 303 is fixedly connected to the inner side of the support frame 2, the lifting frame 304 is slidably connected to the outside of the limit rod 303, and the lifting frame 304 is threadedly connected to the screw rod 302.

[0054] The clamping assembly 5 includes a fixing ring 501, a partition plate 1 502, a partition plate 2 504, a fixing shaft 1 506, an electric push rod 507, an electric push rod 507, a fixing shaft 2 510, a clamping frame 512 and a connecting block 517. There are two fixing rings 501, one fixing ring 501 is fixedly connected to the top of the fixing plate 408, and the other fixing ring 501 is set on the side of the lifting frame 304. A transmission compartment is opened on the inner side of the fixing ring 501. There are two partition plates 1 502 and they are respectively The first partition plate 502 is fixedly connected to the top and bottom of the transmission compartment. A straight line groove 503 is provided through the partition plate 1 502. There are two partition plates 504, which are arranged between the two partition plates 1 502. The partition plate 2 504 is fixedly connected to the transmission compartment. A curved groove 505 is provided through the partition plate 2 504. A fixed shaft 1 506 is fixedly connected between the partition plates 2 504. The fixed end of the electric push rod 507 is rotatably connected to the outer side of the fixed shaft 1 506. The transmission plate 508 is rotatably connected to the partition plate 1 504. 02 and the partition plate 2 504, the transmission disc 508 is provided with a through oblique groove 509, the fixed shaft 2 510 is fixedly connected between the transmission discs 508 and the fixed shaft 2 510 is slidably connected to the arc groove 505, the fixed shaft 2 510 is rotatably connected to the driving end of the electric push rod 507, the inner side of the transmission bin is provided with a slide groove 511, the clamping frame 512 is slidably connected to the inner side of the slide groove 511, the inner side of the clamping frame 512 is fixedly connected with a connecting shaft 513, and the connecting shaft 513 is adapted to the linear The groove 503 and the oblique groove 509 are slidably connected to the straight groove 503 and the oblique groove 509. A slot 514 is provided on one side of the clamping frame 512. The inner side of the slot 514 can be inserted with a tooth 515 adapted to the spline shaft. The connecting block 517 is fixedly connected to one side of the fixing ring 501 on one side of the lifting frame 304. A connecting groove 516 is provided on the inner side of the lifting frame 304. The connecting block 517 is rotatably connected to the inner side of the connecting groove 516. Pressure sensors 518 are fixedly installed on both sides of the connecting block 517.

[0055] The torsion assembly 4 includes motor 2 401, gear 1 402, rotating shaft 1 403, gear 2 404, gear 3 405, rotating shaft 2 406, gear 4 407 and a fixed plate 408. Motor 2 401 is fixedly installed on the rear side of the support frame 2. Gear 1 402 is fixedly connected to the bottom end of the driving shaft of motor 2 401. Rotating shaft 1 403 is rotatably connected to the inner side of the fixed base 1. Gear 2 404 is fixedly connected to the outer side of rotating shaft 1 403. Gear 2 404 is meshed with gear 1 402. Gear 3 405 is fixedly connected to the outer side of rotating shaft 1 403. Rotating shaft 2 406 is rotatably connected to the inner side of the fixed base 1. Gear 4 407 is fixedly connected to the outer side of rotating shaft 2 406. Gear 4 407 is meshed with gear 3 405. The fixed plate 408 is fixedly connected to the top of rotating shaft 2 406.

[0056] In specific use, the height of the lifting frame 304 is adjusted according to the length of the spline shaft, and the motor 301 is started. The drive shaft of the motor 301 drives the screw rod 302 to rotate, and the rotating screw rod 302 drives the lifting frame 304, which is now unable to rotate due to the limiting rod 303, to slide up and down in the support frame 2 and adjust to the length position of the spline shaft required for testing.

[0057] The tooth 515 adapted to the outer teeth of the spline shaft is installed into the slot 514 of the clamping frame 512, and the spline shaft is inserted into the inner side of the two fixing rings 501, and the electric push rod 507 is started. The electric push rod 507 is extended, so that the driving end of the electric push rod 507 pushes the fixed shaft 2 510 to slide in the arc groove 505, so that the transmission plate 508 rotates between the partition plate 1 502 and the partition plate 2 504, so that the oblique groove 509 is in operation, and the oblique groove 509 pushes the connecting shaft 513 to slide in the straight groove 503, so that the clamping frame 512 slides out of the slide groove 511, so that the tooth 515 is clamped and stuck into the outer side of the spline shaft, completing the stable clamping and fixation of the spline shaft.

[0058] Starting motor 2 401 causes its drive shaft to drive gear 1 402 to rotate gradually. Gear 1 402 drives gear 2 404, rotating shaft 1 403 and gear 3 405 to rotate. Gear 3 405 drives gear 4 407, rotating shaft 2 406 and fixed disk 408 to rotate. Fixed disk 408 drives the bottom fixed ring 501 to rotate. The bottom fixed ring 501 twists the spline shaft. The top fixed ring 501 squeezes the pressure sensor 519 in the connecting groove 516 through the connecting block 517, thereby completing the measurement test of the spline shaft torsional strength.

[0059] The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of this disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0060] The pressure sensor is an existing product on the market, and its connection method and control method are all existing technologies and will not be described in detail here.

[0061] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spline shaft strength testing device, characterized in that: include: A fixed base (1), wherein the top of the fixed base (1) is fixedly connected to a support frame (2); A lifting assembly (3), wherein the lifting assembly (3) is arranged inside the support frame (2); A torsion assembly (4), wherein the torsion assembly (4) is arranged inside the fixed base (1); A clamping assembly (5) is provided on one side of the lifting assembly (3) and at the top end of the twisting assembly (4).

2. A spline shaft strength testing device according to claim 1, characterized in that: The lifting assembly (3) comprises Motor 1 (301), wherein the motor 1 (301) is fixedly mounted on the top of the support frame (2); A screw rod (302), the screw rod (302) is rotatably connected to the inner side of the support frame (2), and the screw rod (302) and the bottom end of the motor (301) drive shaft; A limiting rod (303), wherein the limiting rod (303) is fixedly connected to the inner side of the support frame (2); A lifting frame (304) is slidably connected to the outside of the limiting rod (303), and the lifting frame (304) is threadedly connected to the screw rod (302).

3. A spline shaft strength testing device according to claim 1, characterized in that: The torsion assembly (4) comprises Motor 2 (401), wherein the motor 2 (401) is fixedly mounted on the rear side of the support frame (2); Gear 1 (402), said gear 1 (402) being fixedly connected to the bottom end of the driving shaft of motor 2 (401); A rotating shaft (403) is rotatably connected to the inner side of the fixed base (1); Gear 2 (404), said gear 2 (404) being fixedly connected to the outside of the rotating shaft 1 (403), said gear 2 (404) being meshed with gear 1 (402); Gear three (405), said gear three (405) being fixedly connected to the outside of the rotating shaft one (403); A second rotating shaft (406), the second rotating shaft (406) being rotatably connected to the inner side of the fixed base (1); Gear 4 (407), said gear 4 (407) being fixedly connected to the outside of the second rotating shaft (406), said gear 4 (407) being meshed with gear 3 (405); A fixed disk (408) is fixedly connected to the top of the second rotating shaft (406).

4. A spline shaft strength testing device according to claim 2 or 3, characterized in that: The clamping assembly (5) comprises There are two fixing rings (501), one fixing ring (501) is fixedly connected to the top of the fixing plate (408), and the other fixing ring (501) is arranged on one side of the lifting frame (304), and a transmission compartment is opened inside the fixing ring (501); Partition plate one (502), there are two partition plates one (502) and they are fixedly connected to the top and bottom of the transmission compartment respectively, and each partition plate one (502) is provided with a straight line groove (503) passing through; A second partition plate (504), wherein the second partition plate (504) is provided in two pieces and is arranged between the two first partition plates (502), the second partition plate (504) is fixedly connected to the transmission compartment, and the second partition plate (504) is provided with an arc groove (505) extending therethrough; A fixed shaft (506), wherein the fixed shaft (506) is fixedly connected between the partition plates (504); An electric push rod (507), wherein the fixed end of the electric push rod (507) is rotatably connected to the outer side of the fixed shaft (506); A transmission plate (508), the transmission plate (508) being rotatably connected between the first partition plate (502) and the second partition plate (504), the transmission plate (508) being provided with a through-going oblique groove (509); A second fixed shaft (510), the second fixed shaft (510) is fixedly connected between the transmission plates (508) and the second fixed shaft (510) is slidably connected to the arc groove (505), and the second fixed shaft (510) is rotationally connected to the driving end of the electric push rod (507); A clamping frame (512), a sliding groove (511) is provided on the inner side of the transmission chamber, the clamping frame (512) is slidably connected to the inner side of the sliding groove (511), a connecting shaft (513) is fixedly connected to the inner side of the clamping frame (512), the connecting shaft (513) is adapted to the straight groove (503) and the oblique groove (509) and is slidably connected to the straight groove (503) and the oblique groove (509), a slot (514) is provided on one side of the clamping frame (512), and a tooth (515) adapted to the spline shaft can be inserted into the inner side of the slot (514); A connecting block (517) is fixedly connected to one side of a fixing ring (501) on one side of a lifting frame (304). A connecting groove (516) is provided on the inner side of the lifting frame (304). The connecting block (517) is rotatably connected to the inner side of the connecting groove (516). Pressure sensors (518) are fixedly installed on both sides of the connecting block (517).

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