Speed reducer assembly test run transmission coupling tool

Abstract

The invention relates to the technical field of transmission coupling tools, in particular to a speed reducer assembly test run transmission coupling tool which comprises a left half coupling, a right half coupling, a sleeve shell, a probe pin, a reflection pin, a target pin, a magnetic pin and a positioning pin. First scale areas are evenly arranged on the circumference of the left half coupling body, the four probe pins and the four opposite taper holes are distributed in the end face of the left half coupling body and the end face of the right half coupling body in the radial direction respectively, the reflection pins and the target pins are symmetrically inserted into the opposite taper holes in a pairwise mode respectively, and the two reflection pins reflect light spots of the probe pins respectively and then transmit the light spots to the target pins. Absolute values of the two light spots on the first scale area can reflect the gradient of the reflection pin; and the target pin receives and displays a light spot directly irradiated by the probe pin to obtain the distance of the center of the probe pin deviating from the center of the target pin. According to the invention, through the cooperation of various pins, the centering error is efficiently measured by using a light spot at a lower cost, so that rapid and accurate centering is realized.

Description

Technical Field

[0001] The invention relates to the technical field of transmission coupling tooling, in particular to a transmission coupling tooling for a speed reducer assembly test run. Background Art

[0002] After the reducer is assembled, it is necessary to connect the motor to test the performance. The reducer assembly test drive coupling tooling connects the main shaft of the test motor and the input shaft of the reducer during this process. Common couplings can be divided into rigid and elastic according to their working properties. The elastic coupling contains elastic elements inside, and the deformation of the elastic elements can compensate for some alignment errors, making the installation and use of the coupling more convenient. However, under test conditions, in order to ensure the accuracy of the obtained data, the coupling should not have an error compensation function. Therefore, the flange coupling, which is more common among rigid couplings, is used in the present invention. Because the flange coupling has no error compensation function, its installation and use require very high alignment. Although advanced technologies, such as laser alignment instruments and integrated test benches, can quickly and accurately achieve alignment, they are difficult to popularize due to their high prices. The commonly used method is often to use conventional measuring tools such as dial indicators, but the measurement effect is often affected by the operator's proficiency, and the process is cumbersome.

[0003] Therefore, in order to improve the centering efficiency of the coupling tooling during the test run of the reducer assembly and control its cost, a transmission coupling tooling for the test run of the reducer assembly is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a transmission coupling tool for testing a reducer assembly, so as to solve the problems of generally low centering efficiency of the coupling tool and excessively high cost of advanced auxiliary centering equipment during the test of the reducer assembly. By using various pins in coordination, the centering error can be measured efficiently using light spots at a lower cost, thereby achieving the purpose of fast and accurate centering.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A test drive coupling tool for a reducer assembly comprises a left half coupling, a right half coupling, a sleeve, a probe pin, a reflection pin, a target pin, a magnetic pin and a positioning pin. The left half coupling comprises a left coupling body, a light hole and a tapered hole. The right half coupling comprises a right coupling body, a threaded hole, a counter-cone hole and a compound hole. The sleeve is connected to the circumference of the left coupling body and is provided with a first scale area and positioning holes. The first scale areas are evenly distributed on the circumference of the sleeve. The positioning holes are opened to the right of the first scale area. The four probe pins are radially distributed on the end face of the left coupling body. The four counter-cone holes are arranged on the end face of the right coupling body and are respectively colinear with the center axis of the probe pin.

[0007] When the pair of conical holes contacts the probe pin, the light hole and the threaded hole are aligned and then bolted. The reflection pins and the target pins are symmetrically inserted into the pair of conical holes in pairs. The two reflection pins reflect the light spots emitted by the probe pin to their respective corresponding first scale areas. The absolute values ​​of the two light spots on the first scale area will reflect the inclination of the reflection pin; the target pin receives and displays the light spots directly emitted by the probe pin. The distance that the light spot deviates from the center of the target pin is the distance that the center of the target pin deviates from the center of the probe pin.

[0008] Before using the probe pin for centering, the reducer input shaft must first be inserted into the tapered hole on the left half coupling for preliminary centering. After meeting certain centering requirements, the right half coupling can enter the housing. To improve the efficiency of preliminary centering, you can try to lower the centering requirements for the right half coupling entering the housing, that is, increase the gap d between the right coupling body and the housing. However, as the allowable error increases, there are further requirements for the measurement capability and range of the tooling.

[0009] Preferably, the pair of tapered holes comprises a left hole and a right hole, the large diameter ends of the left hole and the right hole are respectively arranged on the inner and outer end surfaces of the right coupling body, and the small diameter ends overlap. In the pair of tapered holes, no matter the left hole or the right hole, no matter whether the taper becomes smaller or the large diameter becomes larger, the overlapping small diameter will increase.

[0010] The increase in the minor diameter can increase the cross-section of the cylinder, thereby increasing the area of ​​the inclined surface. With a larger area, the inclined surface can reflect the light spot in a wider area. With a wider measurement area, a larger centering error is allowed to occur.

[0011] And the depth of the changed hole will increase. The right hole needs a greater depth to more stably connect the reflection pin and the target pin through more surface contact. Therefore, the taper of the left hole is not less than that of the right hole, and the major diameter is not greater than that of the right hole. However, for the functional consideration of the left hole guidance, the gap between the left hole and the right hole should not be too large. In addition, the taper of the right hole should be controlled within 5° to 10°. If the taper is less than 5°, the guiding effect on the reflection pin and the target pin is poor; if the taper is greater than 10°, the reflection pin and the target pin may slip out of the right hole, which will cause the cross-section of the column to be too small, and then the inclined surface will be too small, so that the measurement capability is attenuated.

[0012] The reflective pin includes a cone and a cylinder. The cone cooperates with the right hole. The cylinder is connected to the cone and inserted into the left hole. A slope and a positioning hole are provided. The positioning hole is arranged on the circumference of the cylinder and the center is on the neutral plane of the slope. When the positioning hole is connected with the inner hole through the magnetic pin to complete the positioning of the reflective pin, the slope faces the first scale area.

[0013] The inclined plane is close to the left hole. If the inclined plane is set at 45 degrees, then when there is no centering error, the light spot emitted by the probe pin will be reflected to the top of the inclined plane, that is, close to the right limit of the first scale area. At this time, the range of the light spot to the right is very short. In order to make the light spot reflected by the inclined plane as close to the center of the first scale area as possible when there is no error, so as to balance the bidirectional range of the first scale area, the inclined plane is arranged at 55° to 60°, and the specific value depends on the actual situation.

[0014] After the reflection pin and the target pin are inserted into the cone hole and positioned by the magnetic pin, the positioning pin is inserted into the positioning hole at the top of the casing and matched with the four composite holes respectively to complete four measurements.

[0015] It can be seen that there are many ways to position the reflection pin and the target pin, such as opening a keyway on the pair of tapered holes, fixing a connecting key on the circumference of the reflection pin and the target pin, and making the positioning holes into threaded holes and using screws for positioning. Compared with this solution, although the above solution 1 can achieve the purpose better, its processing cost is relatively high, and if the key fits too tightly, it will cause disassembly difficulties. If the fit is not tight enough, it is easy to cause the position of the inclined surface to deviate; the above solution 2 is more troublesome to install and disassemble on the one hand, and frequent disassembly and assembly will wear the threads faster on the other hand.

[0016] Preferably, the major diameter of the inner hole is denoted as e, and this end is opened on the bottom surface of the outer hole and passes through one side of the tapered hole. The magnet includes a pin body, a pin cover, and a handle. The pin body has the same taper as the inner hole and is inserted into and connected to the inner hole and the positioning hole. The pin cover is magnetic, and the diameter of the connection surface with the pin body is denoted as f, f=0.95~0.98e.

[0017] f is slightly smaller than e. On the one hand, there is a certain gap between the pin body with the same taper and the positioning hole. This gap ensures that the pin body does not lose its positioning function and does not generate additional force on the reflection pin and the target pin to cause the offset of the inclined surface and the second scale area. On the other hand, the pin cover is in contact with the bottom surface of the outer hole, so that the pin cover is adsorbed more tightly.

[0018] When the measurement is completed and the magnetic pin needs to be disassembled, a positioning pin can be used. The handle includes a column and a square column. The column is a cylinder, connected to the pin cover, with a height of h. The square column is connected to the column, with a width not less than the diameter of the column, a length not less than 1.5 times the width, and a height consistent with the column. The positioning pin is hollow inside and includes a pin body, a handheld part, and an extraction part. The pin body is inserted into the composite hole and placed above the square column. The handheld part is opened at the large-diameter end of the pin body. The extraction part includes a basin body and a rectangular groove. The basin body is connected to the end face of the pin body, with a height of H, where h < H < 2h. The rectangular groove penetrates the bottom of the basin body, with a length and width both greater than the square column, and a groove depth not greater than h, so that the square column can enter the basin body through the rectangular groove, and the top surface of the square column contacts the bottom surface of the pin body. After generating a dislocation by rotating the positioning pin, the magnetic pin can be pulled out. To facilitate the alignment of the rectangular groove of the positioning pin with the square column during this process, the length direction of the rectangular groove is kept parallel to the handheld part.

[0019] The measurement accuracy and the readability of the measurement data also greatly affect the centering efficiency.

[0020] Preferably, in order to ensure the accuracy of the reading of the first scale area on the sleeve, no external force is applied to the sleeve. The composite hole includes an outer hole and an inner hole. The large diameter of the outer hole is denoted as b, and the ends of this end are evenly distributed on the circumference of the right coupling body. The positioning pin is in clearance fit with the outer hole and is connected to the positioning hole. The positioning hole is a tapered hole, with a small diameter denoted as c, and c = 1.1 - 1.3b. The actual value is related to d. When c is less than 1.1b, the positioning pin may be connected to the positioning hole, thereby applying a certain force to the sleeve. When c is greater than 1.3b, the gap between the positioning pin and the positioning hole may be too large to achieve the positioning function well.

[0021] The target pin includes a target body and a target head. The target body includes a target cone and a target cylinder. The target cone and the target cylinder are respectively inserted into the right hole and the left hole. The target head includes a plano-convex lens and a convex lens. The plano-convex lens is connected to the large-diameter end of the target cone, and a second scale area is provided on the end face. The convex lens is connected to the other end face of the plano-convex lens. The convex lens is a convex lens, and through its magnification of the second scale area, the observer can observe the data more clearly.

[0022] During the commissioning of the reducer assembly, through the cooperation of the motor-side half-coupling and the half-couplings of various models of reducers, the connection of the input shafts of different models of reducers is realized. During this process, the motor-side half-coupling does not need to be disassembled, while the half-couplings on the reducer side need to be frequently replaced. Considering the cost, the components on the reducer-side half-coupling can be made into movable connections, and a general design can be made for the half-couplings of different models.

[0023] Preferably, the reflection pin, target pin, magnetic pin and positioning pin on the right half coupling are all movably connected. For example, the reflection pin is inserted from the right hole of the tapered hole at the beginning of alignment, and the positioning is completed under the connection of the magnetic pin. After the alignment is completed, the positioning pin is used to pull out the magnetic pin. Then, when the left coupling body and the right coupling body are connected, the probe pin pushes out the reflection pin, thereby completing the assembly and disassembly of the reflection pin.

[0024] Because the main shaft diameter of the test motor determines the shaft diameter range of the reducer input shaft that can be tested, and the difference between the two shaft diameters is limited, the right half coupling will not change much when replaced. Except for the change in the shaft hole caused by the change in the shaft diameter of the reducer input shaft, the size and position of the matching holes of the reflection pin, target pin, magnetic pin, and locating pin do not need to be changed.

[0025] In addition, the deadweight of the pin will have an impact on the centering process. For example, the reflection pin is inserted into the right half coupling to complete the centering. When the reflection pin is removed, the right half coupling, which has become lighter, will reset upward to a certain extent, causing the completed centering to deviate again. In order to reduce this impact, the reflection pin, target pin and positioning pin are all hollow in design except for the smaller magnetic pin.

[0026] The probe pin is connected to the left half coupling and will not be disassembled. The stability of the connection needs to be ensured.

[0027] Preferably, the probe pin includes a base, a wireless module, a power supply, a transmitter, and a pin shell. The base includes an insertion rod, a connecting disk, and a fixing rod. The insertion rod is inserted into the end face of the left coupling body and is decorated with threads on the circumference. The connecting disk is connected to the insertion rod and is decorated with threads on the circumference that are consistent with the rotation direction of the insertion rod. When one set of threads is tightened, the other set of threads will not be loosened. The fixing rod is inserted into the connecting disk, and the wireless module, power supply, and transmitter are respectively nested on the fixing rod, and the three are electrically connected. The pin shell includes a shell body, an elastic gasket, and a magnetic gasket. The shell body is connected to the connecting disk. The elastic gasket is in a circular shape and is tightly pressed against the end face of the left coupling body.

[0028] If the elastic gasket is in contact with the connection disk, it will provide equal elastic force to the connection disk and the shell body, and only the connection between the plug rod and the left coupling body can be pre-tightened. If the elastic gasket is only connected to the end face of the large diameter end of the shell body and does not contact the connection disk, it will provide elastic force to the shell body, so that the threaded connection between the shell body and the connection disk is pre-tightened, and the elastic force can also be transmitted to the plug rod, providing pre-tightening for the connection between the plug rod and the left coupling body.

[0029] When the left half coupling is connected to the right half coupling, the target pin and the reflection pin on the right half coupling will be ejected. You can try to use a method to recover the ejected target pin and reflection pin to prevent them from falling everywhere.

[0030] Preferably, the magnetic gasket is in the shape of a hollow truncated cone, has magnetism and maintains elasticity, one end of which is connected to the shell body and the other end of which passes over the end surface of the shell body.

[0031] In the process of the probe pin pushing out the reflection pin and the target pin, the part of the magnetic gasket protruding relative to the shell body will preferentially contact the end faces of the reflection pin and the target pin, playing a buffering and protective role. When the probe pin is fully inserted into the conical hole, the magnetic gasket will absorb the pushed out emission pin and target pin, waiting for manual recovery.

[0032] When measuring, there may be a lot of dust or strong brightness in the environment, which will affect the use of the probe. For example, under strong light conditions, the display of the light spot on the scale area will not be clear; when there is a lot of dust, the light will be absorbed and scattered in large quantities, so the intensity and propagation distance of the light spot will be greatly reduced.

[0033] Preferably, a closed, dark space is provided for the centering process. The casing includes a filling slit and a filler. Four of the filling slits are evenly distributed on the end surface of the casing. The notch on the casing is an installation space reserved for bolt connection between the light hole and the threaded hole. In order to cover it during the centering process, an arc-shaped dark hard filler is inserted into the filling slit to form a closed, dark space wrapped by the left coupling body, the right coupling body and the casing, reducing the influence of the external environment on the measurement to ensure the accuracy of the centering effect.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. In the existing gear reducer assembly test drive coupling tool alignment process, limited by the high price of intelligent and precise alignment equipment, traditional measuring tools are more commonly used for measurement. In order to obtain higher alignment efficiency at a lower cost, the light spot emitted by the probe pin acts on the reflection pin and target pin to measure the offset of the reflection pin and target pin relative to the probe pin, and obtain the angular deviation and radial deviation, so as to quickly and accurately align.

[0036] 2. Various pins replace various measuring tools, and there is no need to assemble various tooling like measuring tools when using them. And when installing, you only need to insert the corresponding pin holes and perform simple positioning according to needs, without the need to make various adjustments such as zeroing like measuring tool tooling. In the subsequent centering process, you only need to read the scale area, without the complicated use of pins. In this way, the optimization of the measurement process greatly improves the speed of the entire centering process.

[0037] 3. Compared with the use of traditional measuring tools, the present invention is simple to use and does not require much experience from the operator. During the operation, it is only necessary to insert the pin, rotate the right half coupling, and retract the pin. No other tools are required, which makes the measurement data more objective and will not cause deviations in the measurement results due to different operators. In addition, the use of fillers and the closed and dark space formed by them also eliminate the influence of external factors, ensuring the objectivity and accuracy of the measurement results, and thus ensuring the accuracy of the centering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall isometric structure of the present invention;

[0039] Figure 2 It is a schematic diagram of the overall isometric cross-sectional structure of the present invention;

[0040] Figure 3 It is a schematic diagram of the overall isometric cross-sectional structure of the present invention without various pins;

[0041] Figure 4 It is another overall isometric structural schematic diagram of the present invention;

[0042] Figure 5 It is a schematic diagram of the reflective pin and magnetic pin structure of the present invention;

[0043] Figure 6 It is a schematic diagram of the target pin and positioning pin structure of the present invention;

[0044] Figure 7 It is a schematic diagram of the probe pin structure of the present invention;

[0045] Figure 8 It is a schematic diagram of the overall isometric cross-sectional structure of the present invention without the casing.

[0046] In the figure: 1, left half coupling; 11, left coupling body; 12, light hole; 13, tapered hole; 2, right half coupling; 21, right coupling body; 22, threaded hole; 23, counter-tapered hole; 231, left hole; 232, right hole; 24, compound hole; 241, outer hole; 242, inner hole; 3, casing; 31, first scale area; 32, positioning hole; 33, filling seam; 34, filling material; 4, probe pin; 41, base; 411, plug rod; 412, connecting plate; 413, fixing rod; 42, wireless module; 43, power supply; 44, transmitter; 45, pin casing; 451, shell body; 452, elastic gasket; 453, magnetic gasket; 5, reflective pin; 51, cone; 52, column; 521, inclined plane; 522, positioning hole; 6, target pin; 61, target body; 611, target cone; 612, target column; 62, target head; 621, flat transparent; 6211, second scale area; 622, convex transparent; 7, magnetic pin; 71, pin body; 72, pin cover; 73, handle; 731, column; 732, square column; 8, positioning pin; 81, pin body; 82, hand-held part; 83, extraction part; 831, basin body; 832, rectangular groove. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] See also Figures 1 to 8 The present invention provides a reducer assembly test drive coupling tooling, the technical solution is as follows:

[0049] As an embodiment of the present invention, refer to Figures 1 to 3 The pair of tapered holes 23 include a left hole 231 and a right hole 232. The large diameter ends of the left hole 231 and the right hole 232 are respectively arranged on the inner and outer end surfaces of the right coupling body 21, and the small diameter ends overlap. The taper and large diameter of the left hole 231 are equal to those of the right hole 232, so that the left hole 231 can guide the probe pin 4, and the right hole 232 can guide the reflection pin 5 and the target pin 6. The taper of the right hole 232 is 5°, which ensures the stability of the connection between the reflection pin 5 and the target pin 6 while ensuring the guidance.

[0050] During processing, a through hole with a diameter slightly smaller than the minor diameter can be drilled with a common drill bit, and then a conical countersink is inserted into the two end surfaces of the right coupling body 21 to expand the hole. Compared with direct drilling, using a countersink to expand the hole can, on the one hand, avoid the trouble of controlling the coaxiality of the left hole 231 and the right hole 232, and more importantly, it can remove the traces left by drilling, ensure the smoothness of the inner surface of the conical hole 23, and ensure that the reflection pin 5 and the target pin 6 can be smoothly inserted.

[0051] As an embodiment of the present invention, refer to Figures 2 to 5 The reflective pin 5 includes a cone 51 and a column 52, which are hollow inside. The cone 51 cooperates with the right hole 232, and the column 52 is connected to the cone 51 and inserted into the left hole 231. It is provided with an inclined surface 521 and a positioning hole 522. The inclined surface 521 is 55°, and the positioning hole 522 is opened on the circumference of the column 52, and the center is on the neutral plane of the inclined surface 521.

[0052] The inclined surface 521 is 55°, and the inner diameter of the large end of the housing 3 is 200 mm. In the process of measuring the vertical angle deviation, the operator observes from the first scale area 31 above that the position of the light spot reflected by the upper reflection pin 5 in the upper first scale area 31 is +5, that is, 5 mm to the left, and the position of the light spot reflected by the lower reflection pin 5 in the lower first scale area 31 is -4.2, that is, 4.2 mm to the right. Then, the line between the upper light spot and the lower light spot is deflected from the vertical state to arc tan (4.2 / 200) = 2.635°, that is, the lower opening of the right half coupling 2 is opened by 2.635°.

[0053] During processing, aluminum is used for lightweight considerations. The taper of the cone 51 is 5°, which is consistent with the counter-cone hole 23. The rod is first processed by a lathe to turn out the cone 51 and the column 52, and then the positioning hole 522 and the hollow interior are processed by a drilling machine, and finally the inclined surface 521 is milled out by a milling cutter. For the inclined surface 521, the surface is sprayed with a mirror finish so that the inclined surface 521 has a better reflective effect.

[0054] As an embodiment of the present invention, refer to Figure 2 and Figure 3 The composite hole 24 includes an outer hole 241 and an inner hole 242 .

[0055] The major diameter of the outer hole 241 is 16 mm, and the major diameter end is evenly distributed on the circumference of the right coupling body 21. The positioning pin 8 is clearance-matched with the outer hole 241 and connected to the positioning hole 32. The positioning hole 32 is a tapered hole with a minor diameter of 18 mm.

[0056] During processing, the outer hole 241 and the inner hole 242 are first milled out with a milling cutter, and the purpose of using the milling cutter is to make the bottom surface of the outer hole 241 flat and better contact with the magnetic pin 7. In order to strengthen the magnetic force between the bottom surface of the outer hole 241 and the magnetic pin 7, some coating containing magnetic particles such as ferrite and neodymium magnets can also be sprayed on the bottom surface of the outer hole 241.

[0057] As an embodiment of the present invention, refer to Figures 2 to 5 The major diameter of the inner hole 242 is 2 mm, and the major diameter end is arranged on the bottom surface of the outer hole 241, passing through one side of the tapered hole 23. The magnetic pin 7 includes a pin body 71, a pin cover 72, and a handle 73. The pin body 71 has the same taper as the inner hole 242, is inserted into and connected to the inner hole 242 and the positioning hole 522, and the pin cover 72 is magnetic, and the diameter of the connection surface with the pin body 71 is 1.9 mm.

[0058] The handle 73 includes a column 731 and a square column 732. The column 731 is a cylinder 52, connected to the pin cover 72, with a height of 0.3mm and a diameter of 0.5mm. The square column 732 is connected to the column 731, with a width of 0.5mm, a length of 1.2mm and a height of 0.3mm. The positioning pin 8 is hollow inside and includes a pin body 81, a hand-held portion 82 and an extraction portion 83. The pin body 81 is inserted into the composite hole 24 and is placed above the square column 732. The hand-held portion 82 is provided at the large diameter end of the pin body 81. The extraction portion 83 includes a basin body 831 and a rectangular groove 832. The basin body 831 is connected to the end face of the pin body 81 and has a height of 0.4mm. The rectangular groove 832 runs through the bottom of the basin body 831 and has a length of 1.5mm, a width of 0.6mm, a groove depth of 0.15mm, and a length direction parallel to the hand-held portion 82.

[0059] The positioning requirements of the positioning pin 8 are not high, and during processing, a split design and injection molding can be made. The magnetic pin 7 is made of iron and is easily magnetized.

[0060] As an embodiment of the present invention, refer to Figures 2 to 6 The target pin 6 includes a target body 61 and a target head 62. The target body 61 is hollow inside and includes a target cone 611 and a target column 612. The target cone 611 and the target column 612 are respectively inserted into the right hole 232 and the left hole 231. The target column 612 is provided with a positioning hole 522 on its circumference that is consistent with the column 52. The target head 62 includes a flat lens 621 and a convex lens 622. The flat lens 621 is connected to the large diameter end of the target cone 611, and a second scale area 6211 is provided on the end face. The convex lens 622 is a convex lens 622 mirror connected to the other end face of the flat lens 621.

[0061] The convex lens 622 magnifies the second scale area 6211, making it easier for the operator to observe. In order to enhance the anti-interference ability of the present invention in a strong light environment, during processing, a film similar to a car window can be attached between the flat lens 621 and the convex lens 622, so that less light can enter from the outside to the inside while ensuring sufficient light output.

[0062] As an embodiment of the present invention, refer to Figures 2 to 7 The probe pin 4 includes a base 41, a wireless module 42, a power supply 43, a transmitter 44, and a pin shell 45. The base 41 includes an insertion rod 411, a connecting disk 412, and a fixing rod 413. The insertion rod 411 is inserted into the end face of the left coupling body 11, and is decorated with a left-handed thread on the circumference. The connecting disk 412 is connected to the insertion rod 411, and is decorated with a thread on the circumference that is consistent with the rotation direction of the insertion rod 411. The fixing rod 413 is inserted into the connecting disk 412. The wireless module 42, the power supply 43, and the transmitter 44 are respectively nested in the fixing rod 413, and the three are electrically connected. The pin shell 45 includes a shell body 451, an elastic gasket 452, and a magnetic gasket 453. The shell body 451 is connected to the connecting disk 412. The elastic gasket 452 is in a circular shape and is connected to the large diameter end of the shell body 451 to press against the end face of the left coupling body 11.

[0063] When the present invention is in use, the operator can observe the positions of the light spots on the first scale area 31 on one side and the opposite side at the same time. In order to facilitate the use of this method, the emitter 44 of the probe pin 4 is set to emit more colors of light to distinguish the light spots from different sources. For example, when measuring the angular deviation in the vertical direction, the upper probe pin 4 emits a yellow light spot, and the lower probe pin 4 emits a blue light spot. In this way, when the operator observes from the upper first scale area 31, by observing the color of the end of the shell body 451, it can be directly distinguished that the yellow light spot comes from the upper probe pin 4 and the blue light spot comes from the lower probe pin 4.

[0064] In another embodiment, in order to control costs, only one probe pin 4 may be installed. During measurement, the angle deviation measurement is performed first. For example, at the beginning of a certain measurement, the reflection pin 5 is in the vertical direction. At this time, the left half coupling 1 is rotated so that the probe pin 4 is also in the vertical direction, for example, at the bottom. The position of the light spot reflected by the reflection pin 5 in the first scale area 31 at the lower end is read and recorded through the first scale area 31 at the upper end. Then, the positioning pin 8 is pulled out, and the left half coupling 1 is rotated 180° in any direction to align the positioning hole 32 with the other composite holes 24. The positioning pin 8 is inserted again, and the position of the light spot reflected by the upper reflection pin 5 in the first scale area 31 at the upper end is read and recorded through the first scale area 31 at the upper end. In this way, a set of vertical angle deviation measurements is completed.

[0065] After the horizontal angle deviation measurement is completed, the reducer is adjusted for angle deviation, and then the radial deviation is measured. At this time, the probe pin 4 is in the horizontal direction, and the target pin 6 is in the vertical direction. Pull out the positioning pin 8, rotate the right half coupling 2 by 90° in any direction, align the positioning hole 32 with the other composite holes 24, insert the positioning pin 8 again, and the operator reads and records the reading of the second scale area 6211, which is the horizontal radial deviation data; then pull out the positioning pin 8, rotate the left half coupling 1 and the right half coupling 2 by 90° in any direction at the same time, align the positioning hole 32 with the composite hole 24, insert the positioning pin 8 again, and the operator reads and records the reading of the second scale area 6211, which is the vertical radial deviation data, adjust the radial deviation of the reducer according to the data, and complete the alignment of the motor main shaft and the reducer input shaft.

[0066] Working principle: The reflection pin 5 and the target pin 6 receive the light spot directly emitted by the probe pin 4, respectively, and display and directly display the light spot after reflection. The operator determines the angular deviation and radial deviation of the right half coupling 2 respectively by reading the readings on the first scale area 31 and the second scale area 6211, and adjusts the reducer according to the obtained deviation to align the motor main shaft with the reducer input shaft.

[0067] Specifically, during a test run of the reducer assembly, when connecting the motor main shaft, the reflection pin 5 and the target pin 6 are first inserted into the conical hole 23 of the right half coupling 2 symmetrically, and then inserted from the right hole 232. Next, the magnetic pin 7 is inserted from the inner hole 242 of the composite hole 24, and the positioning holes 522 on the reflection pin 5 and the target pin 6 are connected respectively: after the positioning hole 522 on the reflection pin 5 is connected, the inclined surface 521 faces the first scale area 31; after the positioning hole 522 on the target pin 6 is connected, the scale of the second scale area 6211 is horizontal and vertical. Then the right half coupling 2 is nested on the input shaft of the reducer.

[0068] The left half coupling 1 is pushed to the right for a distance to expose the tapered hole 13, and the reducer is moved so that its input shaft is inserted into the tapered hole 13 to complete the preliminary alignment. Then the left half coupling 1 is pushed back to its original position, and the right half coupling 2 is pushed toward the end of the reducer input shaft, and the right half coupling 2 is inserted into the casing 3, and then the uppermost positioning hole 32 of the casing 3 is aligned with the composite hole 24, and the positioning pin 8 is inserted, and the positioning pin 8 should fall on the magnetic pin 7 to avoid contact with the positioning hole 32. In the subsequent process, the insertion and removal of the positioning pin 8 is only performed in the uppermost positioning hole 32.

[0069] When measuring, first use the reflection pin 5 to measure the angle deviation of the right half coupling 2. Pay attention to whether the reflection pin 5 is in the horizontal direction or the vertical direction. Taking the vertical direction as an example, through the first scale area 31 at the top, read the position of the light spot reflected by the upper reflection pin 5 in the upper first scale area 31, and the position of the light spot reflected by the lower reflection pin 5 in the lower first scale area 31. After recording, it is used as the data of the upper and lower angle deviation of the right half coupling 2. Next, pull out the positioning pin 8, rotate the right half coupling 2 by 90° in any direction, align the positioning hole 32 with the other composite holes 24, insert the positioning pin 8 again, and the operator reads the position of the light spot reflected by the reflection pin 5 on the first scale area 31 on the side, and the position of the light spot reflected by the opposite reflection pin 5 on the opposite first scale area 31 from the convenient side. After recording, it is used as the data of the left and right angle deviation of the right half coupling 2. Then, adjust the angle deviation of the reducer according to the data.

[0070] After the angle deviation is adjusted, the radial deviation is measured. Continuing the above measurement process, the target pin 6 is now in the horizontal direction, and the operator reads the reading of the second scale area 6211. After recording, it is used as the data of the left and right radial deviation of the right half coupling 2. Next, pull out the positioning pin 8, rotate the right half coupling 2 90° in any direction to align the positioning hole 32 with the other composite holes 24, insert the positioning pin 8 again, and the operator reads the reading of the second scale area 6211. After recording, it is used as the data of the upper and lower radial deviation of the right half coupling 2. Then, adjust the radial deviation of the reducer according to the data.

[0071] After adjusting the radial deviation, the motor main shaft and the reducer input shaft are aligned. First, use the positioning pin 8 to pull out the four magnetic pins 7 respectively, then under the guidance of the probe pin 4, complete the alignment of the optical hole 12 and the threaded hole 22, and then recover the target pin 6 and the reflection pin 5 adsorbed by the probe pin 4. Finally, connect the optical hole 12 and the threaded hole 22.

[0072] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transmission coupling tool for testing a reducer assembly, comprising a left half coupling (1) and a right half coupling (2), characterized in that: It also includes a casing (3), a probe pin (4), a reflection pin (5), a target pin (6), a magnetic pin (7), and a positioning pin (8); the left half coupling (1) includes a left coupling body (11), a light hole (12), and a conical hole (13); the right half coupling (2) includes a right coupling body (21), a threaded hole (22), a counter-cone hole (23), and a composite hole (24); the casing (3) is connected to the circumference of the left coupling body (11), and is provided with a first scale area (31) and a positioning hole (32); the first scale area (31) is evenly arranged on the circumference of the casing (3); the positioning hole (32) is arranged on the right side of the first scale area (31); the four probe pins (4) are radially distributed on the end face of the left coupling body (11); the four counter-cone holes (23) are arranged on the end face of the right coupling body (21) and are respectively collinear with the center axis of the probe pin (4); When the counter-cone hole (23) contacts the probe pin (4), the light hole (12) and the threaded hole (22) are aligned. The reflection pins (5) and the target pins (6) are symmetrically inserted into the counter-cone hole (23) in pairs. The two reflection pins (5) reflect the light spots of the probe pin (4) to their respective corresponding first scale areas (31). The absolute values ​​of the two light spots on the first scale area (31) reflect the inclination of the reflection pin (5). The target pin (6) receives and displays the light spots directly projected by the probe pin (4). The distance by which the light spots deviate from the center of the target pin (6) is the distance by which the center of the target pin (6) deviates from the center of the probe pin (4).

2. A reducer assembly test drive coupling tool according to claim 1, characterized in that: The pair of tapered holes (23) comprises a left hole (231) and a right hole (232). The large diameter ends of the left hole (231) and the right hole (232) are respectively arranged on the inner and outer end surfaces of the right coupling body (21), and the small diameter ends overlap. The taper of the left hole (231) is not less than that of the right hole (232), and the large diameter is not greater than that of the right hole (232). The taper of the right hole (232) is 5° to 10°.

3. A reducer assembly test drive coupling tool as claimed in claim 2, characterized in that: The reflective pin (5) comprises a cone (51) and a column (52), and is hollow inside. The cone (51) matches the right hole (232), and the column (52) is connected to the cone (51) and inserted into the left hole (231). A slope (521) and a positioning hole (522) are provided. The slope (521) is 55° to 60°, and the positioning hole (522) is arranged on the circumference of the column (52), and the center is located on the neutral plane of the slope (521).

4. The reducer assembly test drive coupling tool according to claim 3, characterized in that: The composite hole (24) comprises an outer hole (241) and an inner hole (242); The major diameter of the outer hole (241) is denoted as b, and the major diameter end is evenly distributed on the circumference of the right coupling body (21). The positioning pin (8) is clearance-matched with the outer hole (241) and connected to the positioning hole (32). The positioning hole (32) is a tapered hole, and the minor diameter is denoted as c, where c=1.1-1.3b.

5. A test drive transmission coupling tooling for a reducer assembly according to claim 4, wherein the major diameter of the inner hole (242) is denoted as e, and the major diameter end is opened on the bottom surface of the outer hole (241), penetrating through one side of the counterbore (23). The magnetic pin (7) includes a pin body (71), a pin cover (72), and a handle (73). The pin body (71) has the same taper as the inner hole (242), and is inserted into and connected to the inner hole (242) and the positioning mating hole (522). The pin cover (72) has magnetism, and the diameter of the connection surface with the pin body (71) is denoted as f, and f = 0.95 - 0.98e.

6. The reducer assembly test drive coupling tooling according to claim 5, characterized in that: The handle (73) includes a column (731) and a square column (732). The column (731) is a cylinder, connected to the pin cover (72), with a height of h. The square column (732) is connected to the column (731), and its own width is not less than the diameter of the column (731), and the length is not less than 1.5 times the width, and the height is the same as that of the column (731). The positioning pin (8) is hollow inside, including a pin body (81), a hand-held part (82), and an extraction part (83). The pin body (81) is inserted into the composite hole (24) and placed above the square column (732). The hand-held part (82) is opened at the major diameter end of the pin body (81). The extraction part (83) includes a basin body (831) and a rectangular groove (832). The basin body (831) is connected to the end face of the pin body (81), with a height of H, and h < H < 2h. The rectangular groove (832) penetrates through the bottom of the basin body (831), and its own length and width are both larger than the square column (732), and the groove depth is not greater than h, and the length direction is parallel to the hand-held part (82).

7. The reducer assembly test drive coupling tool according to claim 3, characterized in that: The target pin (6) includes a target body (61) and a target head (62). The target body (61) is hollow inside, including a target cone (611) and a target cylinder (612). The target cone (611) and the target cylinder (612) are respectively inserted into the right hole (232) and the left hole (231). The target cylinder (612) is provided with positioning mating holes (522) on the circumference that are the same as the column (52). The target head (62) includes a flat lens (621) and a convex lens (622). The flat lens (621) is connected to the major diameter end of the target cone (611), and a second scale area (6211) is provided on the end face. The convex lens (622) is connected to the other end face of the flat lens (621).

8. The reducer assembly test drive coupling tool according to claim 1, characterized in that: The probe pin (4) comprises a base (41), a wireless module (42), a power supply (43), a transmitter (44), and a pin shell (45); the base (41) comprises an insertion rod (411), a connecting plate (412), and a fixing rod (413); the insertion rod (411) is inserted into the end surface of the left coupling body (11) and is decorated with threads on the circumference; the connecting plate (412) is connected to the insertion rod (411) and is decorated with threads on the circumference that are consistent with the rotation direction of the insertion rod (411); the fixing rod (413) 413) is inserted into the connection disk (412), the wireless module (42), the power supply (43), and the transmitter (44) are respectively nested in the fixing rod (413), and the three are electrically connected. The pin shell (45) includes a shell body (451), an elastic gasket (452), and a magnetic gasket (453). The shell body (451) is connected to the connection disk (412), and the elastic gasket (452) is in a circular ring shape and is connected to the large diameter end of the shell body (451) to press against the end face of the left coupling body (11).

9. The reducer assembly test drive coupling tool according to claim 8, characterized in that: The magnetic gasket (453) is in the shape of a hollow truncated cone, one end of which is connected to the shell body (451) and the other end of which passes over the end surface of the shell body (451).

10. The reducer assembly test drive coupling tool according to claim 1, characterized in that: The casing (3) further comprises a filling slit (33) and a filler (34); four of the filling slits (33) are evenly distributed on the end surface of the casing (3); and the four fillers (34) are arc-shaped dark-colored hard objects, which are respectively inserted into the filling slits (33).

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