Gearbox loading test bench device

Abstract

The utility model discloses a gear box loading test bench device, which comprises a test bench box body and an accompanying test gear box arranged on the test bench box body, a tested gear box is arranged on the side wall of one side, far away from the accompanying test gear box, of the test bench box body, and a transmission device with two power connecting ends is arranged in the test bench box body. The output shaft of the tested gearbox is fixed at one power connection end of the transmission device, and the output shaft of the accompanying gearbox is fixed at the other power connection end of the transmission device; an input shaft of the tested gear is connected with a driving motor, and an input shaft of the accompanying gear box is connected with a loading motor. According to the utility model, the problems of loading deviation, large single-direction overturning torque applied to the gearbox test bed, uneven gear meshing, load deviation and the like in the loading process of the marine lifting platform gearbox can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gear box loading test, especially to a gear box loading test bench device. BACKGROUND

[0002] Gear box is the most common mechanical equipment in modern industry, which can be widely applied to automobile, metallurgy, ocean, wind power generation and other equipment. Gear box test can be used to test whether the gear box design is reasonable, whether the performance meets the standard and whether it meets the use requirements, so in the gear box production and manufacturing, a series of test verification need to be carried out on the gear box, among which, the gear box loading test is one of the main test, and the loading method is to add certain speed and torque to the tested gear box to detect the load capacity of the gear box.

[0003] At present, the loading method of the gear box of the ocean lifting platform adopts two gear boxes to drag each other, and in the patent file with publication number CN117571301U, the installation method of the two tested gear boxes of the test device adopts same direction installation, which leads to that the whole test bench box support is subjected to great overturning torque in the same direction, so that the whole test bench always keeps in the state of being subjected to tension on one side and pressure on the other side, resulting in unstable structure.

[0004] In summary, the existing gear box loading test device of the ocean lifting platform still has the problems of loading deviation in the loading process, great overturning torque in a single direction on the gear box test bench, uneven gear engagement and load deviation, which need to be solved urgently. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem of providing a gear box loading test bench device, which can solve the problems of loading deviation in the loading process of the gear box of the ocean lifting platform, great overturning torque in a single direction on the gear box test bench, uneven gear engagement and load deviation.

[0006] In order to solve the above technical problems, the gear box loading test bench device provided by the utility model adopts the following technical scheme:

[0007] A gear box loading test bench device, comprising a test bench box, a test gear box arranged on the test bench box, a tested gear box arranged on the side wall of the test bench box away from the test gear box, a transmission device with two power connection ends arranged in the test bench box, an output shaft of the tested gear box fixed to one of the power connection ends of the transmission device, an output shaft of the test gear box fixed to the other power connection end of the transmission device, a driving motor connected to the input shaft of the tested gear box, and a loading motor connected to the input shaft of the test gear box.

[0008] By adopting the technical scheme, the test bench position device is loaded by two motors in a towing mode, and the rotation speed of the driving motor and the torque of the loading motor are controlled, so that the whole test bench is convenient to load, the load size is easy to adjust, the driving motor is used to drive the loading motor to rotate, energy saving and emission reduction are facilitated, and multiple working conditions and overload test scenes can be realized. The test gear box and the test gear box are installed on the test bench box in a different direction. By using this method, the problem that the gear box is subjected to a large single direction overturning torque and is unstable in structure can be avoided when the gear box is installed in the same direction.

[0009] Optionally, a reduction gearbox is arranged between the driving motor and the test gear box.

[0010] By adopting the technical scheme, the reduction gearbox is arranged at the driving motor to increase the output torque in the loading experiment.

[0011] Optionally, a drum gear transmission member is arranged between the output end of the reduction gearbox and the input shaft of the test gear box.

[0012] By adopting the technical scheme, the drum gear transmission member is designed at the output end of the reduction gearbox, which can prevent the jump of the output end of the reduction gearbox and reduce the length of the transmission chain.

[0013] Optionally, the test gear box and the driving motor are connected through a ball cage type universal coupling, and the test gear box and the driving motor are connected through a ball cage type universal coupling.

[0014] By adopting the technical scheme, when the storm loading (overload) is realized, the torque is large during the test, and there is a large jump between the output ends of the two motors. The ball cage type universal coupling is used to connect the test gear box and the driving motor, and the test gear box and the driving motor, so as to weaken the jump between the driving motor and the loading motor.

[0015] Optionally, the transmission device comprises a first output gear, an intermediate gear and a second output gear which are rotatably connected to the inside of the test bench box and are sequentially engaged. The first output gear is coaxially and fixedly installed on the output shaft of the test gear box. The second output gear is coaxially and fixedly installed on the output shaft of the test gear box.

[0016] By adopting the technical scheme, the power between the driving motor and the loading motor can be stably and efficiently transmitted through the first output gear, the intermediate gear and the second output gear.

[0017] Optionally, the test bench box comprises an upper box and a lower box which are detachably connected. The first output gear, the intermediate gear and the second output gear are located in the upper box and the lower box.

[0018] By adopting the technical scheme, the test bench box is designed as a separable type, which is beneficial to improve the installation and positioning of the intermediate gear and the test gear box and facilitate maintenance.

[0019] Optionally, the test bench box comprises a bottom plate and a mounting seat vertically fixed to the bottom plate, and mounting portions are arranged on the mounting seat corresponding to positions of the first output gear, the intermediate gear and the second output gear, respectively.

[0020] By adopting the technical scheme, compared with a conventional rectangular box, the test bench box is designed as the above-mentioned special-shaped structure, which can install the first output gear, the intermediate gear and the second output gear while saving materials, reducing costs, and strengthening the strength and rigidity of the test bench box.

[0021] Optionally, the first output gear, the intermediate gear or the second output gear is designed as a gear shaft.

[0022] By adopting the technical scheme, the integral gear shaft avoids secondary installation of the shaft and the gear, and reduces the overall assembly error.

[0023] Optionally, the test bench box is provided with a mounting hole, one end of the test gear box is arranged in the mounting hole, a compression bolt is arranged in the test bench box and is threadedly connected, a lower end of the compression bolt is rotatably connected with a compression block, and the compression block abuts against an outer wall of the test gear box.

[0024] By adopting the technical scheme, after the test gear box is inserted into the mounting hole, installation and positioning and coloring inspection are performed, after completion, the compression bolt is tightened to drive the compression block to move downward, so as to compress the test gear box, thereby enhancing the stability and firmness of the test gear box relative to the test bench box, and ensuring the stability of the test gear box during loading test.

[0025] Optionally, a lower edge surface of the mounting hole is inclined and a low end of the lower edge surface faces the inside of the test bench box, a vertical block is fixed to a high end of the lower edge surface of the mounting hole, an adjusting bolt is arranged in the vertical block and is threadedly connected, a wedge-shaped adjusting block is rotatably connected to an end of the adjusting bolt facing the inside of the test bench box, a lower inclined surface of the wedge-shaped adjusting block is attached to the lower edge surface of the mounting hole, and the test gear box is attached to an upper flat surface of the wedge-shaped adjusting block.

[0026] By adopting the technical scheme, through the effective stroke of the wedge-shaped adjusting block, the test gear box can be accurately positioned, and the coloring of the output gear and the intermediate gear of the test gear box can be adjusted, thereby avoiding the problem of gear normal meshing failure due to load deviation of the gear.

[0027] Optionally, the output ends of the driving motor and the loading motor are provided with torque sensors.

[0028] By adopting the above technical scheme, the torque sensor is convenient for test personnel to directly obtain test data of the test gear box and control the torque in the loading process, and is beneficial to test safety in the storm loading process.

[0029] In summary, the utility model has at least one of the following beneficial technical effects:

[0030] 1. The test scene of multiple working conditions and overload can be realized, the test bench device is loaded in a way of being pulled by two motors, the speed control and the torque control are performed on the driving motor and the loading motor respectively, the whole test bench loading is facilitated, the load size is easy to adjust, the driving motor is used to drive the loading motor to rotate, and energy saving and emission reduction are facilitated.

[0031] 2. The test gear box and the test gear box are installed on the test bench box body in a different direction, and the gear box is not offset under stress when the same direction is used, so that the test gear box is not subjected to a large single direction overturning torque and is not unstable in structure.

[0032] 3. The test bench box body is designed to be separable, which is beneficial to improve the installation and positioning of the intermediate gear and the test gear box, and is convenient for maintenance.

[0033] 4. The effective stroke of the wedge-shaped adjusting block can realize accurate positioning of the test gear box, and the coloring condition of the output gear of the test gear box and the intermediate gear can be adjusted, so that the problem of gear meshing failure due to load offset of the gear is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a top view schematic diagram of the utility model for showing the gear box loading test bench device.

[0035] Figure 2 is an axial view schematic diagram of the utility model for showing the test bench box body.

[0036] Figure 3 is a front view schematic diagram of the utility model for showing the test bench box body.

[0037] Figure 4 is a top view schematic diagram of the utility model for showing the test bench box body.

[0038] Figure 5 is a structural schematic diagram of the utility model for showing the connection mode of the test gear box and the test bench box body.

[0039] Figure 6is Figure 5 Enlarged structural schematic view of part A in the middle.

[0040] Marked for explanation: 1, drive motor; 2, ball cage type universal coupling; 3, reduction box; 4, torque sensor; 5, drum gear transmission; 6, test gear box; 61, test gear box; 7, test bench box; 71, upper box; 711, compression block; 712, compression bolt; 72, lower box; 721, vertical block; 722, adjusting bolt; 723, wedge-shaped adjusting block; 8, loading motor; 9, transmission device; 91, first output gear; 92, intermediate gear; 93, second output gear. DETAILED DESCRIPTION

[0041] The following will be combined with the Figures 1-6 The utility model is further explained in detail.

[0042] The utility model embodiment discloses a gear box loading test bench position device. Figure 1 And Figure 2 The gear box loading test bench position device comprises a test bench box 7, a test gear box 6 and a test gear box 61, and the test gear box 6 and the test gear box 61 are fixedly installed on the two side walls of the test bench box 7.

[0043] Referring to Figure 1 、 Figure 3 And Figure 4 The test bench box 7 is provided with a transmission device 9, and the transmission device 9 comprises a first output gear 91, an intermediate gear 92 and a second output gear 93.

[0044] Referring to Figure 1 、 Figure 3 And Figure 4 The first output gear 91, the intermediate gear 92 and the second output gear 93 are rotatably connected inside the test bench box 7, and the centers of the first output gear 91, the intermediate gear 92 and the second output gear 93 are located on the same horizontal line and are in meshing sequence. The output shaft of the test gear box 6 penetrates the outer wall of the test bench box 7 and is fixedly installed on the first output gear 91 in the same axis, and the output shaft of the test gear box 61 penetrates the outer wall of the test bench box 7 and is fixedly installed on the second output gear 93 in the same axis.

[0045] Referring to Figure 1In order to meet the storm loading in the loading test, a reduction gearbox 3 is arranged between the output shaft of the test gearbox 6 and the first output gear 91 to increase the output torque. A drum gear transmission 5 is arranged between the output end of the reduction gearbox 3 and the input shaft of the test gearbox 6, the drum gear transmission 5 comprising two drum gears, one meshing gear and two gland nuts. The drum gears are used to transmit motion and power, which aims to prevent the jump of the output end of the reduction gearbox and reduce the length of the transmission chain.

[0046] With reference to Figure 1 In the implementation of storm loading (overload), the moment is large during the test process, and there is a large jump between the output ends of the two motors. The test gearbox 6 and the driving motor 1 and the test gearbox 61 and the loading motor 8 are connected through the ball cage type universal joint 2, so as to weaken the jump between the driving motor 1 and the loading motor 8.

[0047] The test bench device is loaded by means of two motor drag, and the driving motor 1 and the loading motor 8 are controlled in speed and torque, which not only makes the whole test bench loading convenient, but also is easy to adjust the load size, and the driving motor 1 drives the loading motor 8 to rotate, which is beneficial to realize energy saving and emission reduction. The test gearbox 6 and the test gearbox 61 are installed on the test bench box 7 in different directions. This way can avoid the problem that the gear box will be offset when installed in the same direction, and the test bench box will be subjected to a large single direction overturning torque and unstable structure.

[0048] With reference to Figure 2 In order to save materials, the test bench box 7 comprises a bottom plate and a mounting seat, the mounting seat is vertically fixed to the bottom plate, the bottom plate is fixed to the horizontal surface by T-shaped bolts, and horizontal alignment is required. The mounting plate and the bottom plate are fixedly provided with a reinforcing rib. The mounting seat is provided with mounting portions corresponding to the positions of the first output gear 91, the intermediate gear 92 and the second output gear 93, the width of the mounting seat is less than the width of the mounting portion, and the first output gear 91, the intermediate gear 92 and the second output gear 93 are rotatably installed in the corresponding mounting portion.

[0049] Compared with the conventional rectangular box, the test bench box 7 is designed into the above-mentioned special-shaped structure, which can not only install the first output gear 91, the intermediate gear 92 and the second output gear 93, but also save materials and reduce cost, and the strength and rigidity of the test bench box 7 are also improved.

[0050] With reference to Figure 1 , Figure 2 and Figure 3In order to facilitate the installation and positioning of the intermediate gear 92 and the test gear box 6, the mounting seat comprises a detachable upper box body 71 and a lower box body 72, the installation and positioning accuracy of the upper box body 71 and the lower box body 72 is determined by the conical positioning pin and the cylindrical pin on the upper box body 71 and the lower box body 72, and the upper box body 71 and the lower box body 72 are fixedly connected by using a bolt set. The test bench box 7 is designed to be separable, which is conducive to improving the installation and positioning of the intermediate gear 92 and the test gear box 6, and facilitating maintenance.

[0051] With reference to Figure 3 , Figure 5 and Figure 6 , in order to ensure the stability of the transmission of the test gear box 6 during the loading test, the test bench box 7 is provided with a mounting hole, one end of the test gear box 6 is arranged in the mounting hole, the test bench box 7 is provided with a pressing bolt 712 which is threadedly connected, the lower end of the pressing bolt 712 is rotatably connected with a pressing block 711, and the pressing block 711 abuts against the outer wall of the test gear box 6. After the test gear box 6 is inserted into the mounting hole, installation and positioning and color inspection are carried out, and after completion, the pressing block 711 is driven downward by tightening the pressing bolt 712 to press the test gear box 6, so as to enhance the stability and firmness of the test gear box 6 relative to the test bench box, and ensure the stability of the transmission of the test gear box 6 during the loading test.

[0052] With reference to Figure 5 and Figure 6 , in order to be able to adjust the gear color and ensure the center distance between the gears, the lower edge surface of the mounting hole is inclined and the low end faces the inside of the test bench box 7, the high end of the lower edge surface of the mounting hole is fixedly provided with a vertical block 721, the vertical block 721 is provided with an adjusting bolt 722 which is threadedly connected, the end of the adjusting bolt 722 facing the inside of the test bench box 7 is rotatably connected with a wedge-shaped adjusting block 723, the lower inclined surface of the wedge-shaped adjusting block 723 is in abutment with the lower edge surface of the mounting hole, and the test gear box 6 is in abutment with the upper plane of the wedge-shaped adjusting block 723. Through the effective stroke of the wedge-shaped adjusting block 723, the test gear box 6 can be accurately positioned, and the color of the output gear of the test gear box 6 and the intermediate gear 92 can be adjusted, so as to avoid the problem of gear normal meshing failure due to load deviation of the gear.

[0053] The output ends of the driving motor 1 and the loading motor 8 are provided with torque sensors 4, and the drum gears are bolted between the torque sensors 4 and the output ends of the driving motor 1 and the loading motor 8. The torque sensors 4 are convenient for test personnel to directly obtain test data of the test gear box 6 and control the torque in the loading process, which is conducive to the safety of the test in the storm loading process.

[0054] The loading principle of the loading test is: during the test, the output torque of the driving motor 1 is set as M1, the torque of the loading motor 8 is M2, the transmission ratio of the tested gear box 6 is i, the pitch circle diameter of the output gear is d, the relationship between the lifting force F of the output gear of the tested gear box 6 and the torque T is T=9.8xFxd / 2, and the relationship among M1, T and M2 is: ηxηxiM1=ηT=iM2, wherein η is the actual transmission efficiency. By substitution, M1xM2≥24F2d2 / ηi2=M, thus, the pre-press load is required to be greater than or equal to M, the storm is required to be greater than or equal to 1.5M, and the hurricane is required to be greater than or equal to 2.25M.

[0055] The implementation principle of the gear box loading test bench device is that the driving motor 1, the ball cage type universal coupling 2, the speed reducer 3, the torque sensor 4, the drum gear transmission member 5, the tested gear box 6, the test bench rack box 7, the test gear box 61 and the loading motor 8 are sequentially connected to form a transmission chain. The test bench device is loaded in a way that two motors are dragged against each other, and the speed control and the torque control are performed on the driving motor 1 and the loading motor 8, so that the test bench loading is convenient, the load size is easy to adjust, and the driving motor 1 is used to drive the loading motor 8 to rotate, which is beneficial to energy saving and emission reduction.

[0056] The tested gear box 6 and the test gear box 61 are installed on the test bench rack box 7 in a reverse direction, which can avoid the problem that the gear box is offset under stress when installed in the same direction, and the gear box test bench rack is subjected to a large single-direction overturning torque and is unstable in structure. In addition, the effective stroke of the wedge-shaped adjusting block 723 can be used to accurately position the tested gear box 6, and the coloring condition of the output gear of the tested gear box 6 and the intermediate gear 92 can be adjusted, so that the problem of gear meshing failure due to load offset of the gear is avoided.

[0057] The above are preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A gearbox loading test bench device, characterized in that: The test bench includes a test bench housing (7) and a test gearbox (61) disposed in the test bench housing (7). A test gearbox (6) is installed on the side wall of the test bench housing (7) away from the test gearbox (61). A transmission device (9) with two power connection ends is disposed inside the test bench housing (7). The output shaft of the test gearbox (6) is fixed to one of the power connection ends of the transmission device (9), and the output shaft of the test gearbox (61) is fixed to the other power connection end of the transmission device (9). The input shaft of the test gear is connected to a drive motor (1), and the input shaft of the test gearbox (61) is connected to a loading motor (8).

2. The gearbox loading test bench device according to claim 1, characterized in that: A reduction gearbox (3) is provided between the drive motor (1) and the test gearbox (6).

3. The gearbox loading test bench device according to claim 2, characterized in that: A drum-shaped gear transmission component (5) is provided between the output end of the gearbox (3) and the input shaft of the gearbox under test (6).

4. The gearbox loading test bench device according to claim 1, characterized in that: The test gearbox (6) and the drive motor (1), as well as the auxiliary gearbox (61) and the loading motor (8), are connected by a ball cage universal coupling (2).

5. The gearbox loading test bench device according to claim 1, characterized in that: The transmission device (9) includes a first output gear (91), an intermediate gear (92), and a second output gear (93) that are rotatably connected inside the test bench housing (7) and mesh in sequence. The first output gear (91) is coaxially fixedly installed on the output shaft of the test gearbox (6), and the second output gear (93) is coaxially fixedly installed on the output shaft of the test gearbox (61).

6. The gearbox loading test bench device according to claim 5, characterized in that: The test bench housing (7) includes a detachably connected upper housing (71) and lower housing (72), and the first output gear (91), the intermediate gear (92) and the second output gear (93) are located in both the upper housing (71) and the lower housing (72).

7. A gearbox loading test bench device according to claim 5, characterized in that: The test bench housing (7) includes a base plate and a mounting base vertically fixed to the base plate. The mounting base is provided with mounting parts corresponding to the positions of the first output gear (91), the intermediate gear (92), and the second output gear (93). The width of the mounting base is smaller than the width of the mounting parts.

8. A gearbox loading test bench device according to claim 5, characterized in that: The first output gear (91) and / or the intermediate gear (92) and / or the second output gear (93) are both designed as gear shafts.

9. A gearbox loading test bench device according to claim 1, characterized in that: The test bench housing (7) has an installation hole. One end of the test gearbox (6) passes through the installation hole. The test bench housing (7) is threaded with a clamping bolt (712). The lower end of the clamping bolt (712) is rotatably connected to a clamping block (711). The clamping block (711) abuts against the outer wall of the test gearbox (6).

10. A gearbox loading test bench device according to claim 9, characterized in that: The lower edge of the mounting hole is inclined and the lower end faces the inside of the test bench housing (7). A vertical block (721) is fixed at the upper end of the lower edge of the mounting hole. An adjusting bolt (722) is threaded through and connected to the vertical block (721). A wedge-shaped adjusting block (723) is rotatably connected to one end of the adjusting bolt (722) facing the inside of the test bench housing (7). The lower inclined surface of the wedge-shaped adjusting block (723) fits against the lower edge of the mounting hole. The test gearbox (6) fits against the upper surface of the wedge-shaped adjusting block (723).

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