Power unit for testing the intermediate shaft brake device in the transmission assembly

Abstract

The utility model discloses a power device for testing an intermediate shaft brake device in a transmission assembly, including a bracket assembly, a power assembly mounted on the bracket assembly through a moving assembly, and a sensor unit, wherein the power assembly includes a motor, a transmission shaft, a bearing seat, a code disc, a flywheel transition, a flywheel and a pressure plate; the moving assembly includes a moving plate and a screw assembly, and the screw assembly is used to drive the power assembly to move along the axis direction of the transmission shaft; the sensor unit includes a temperature sensor and a vibration sensor, and also includes a speed sensor. The utility model can drive the intermediate shaft of the transmission in the state of the transmission box to carry out subsequent experiments, solve the problem of related tests of the intermediate shaft brake device without a professional test bench, and solve the problem that the distance needs to be constantly adjusted when installing the clutch during the AMT transmission test, thereby reducing the design of a large number of tooling, the workload of continuous tooling replacement, and the matching work of the clutch and the transmission housing, etc.

Description

Technical Field

[0001] The utility model relates to the technical field of AMT transmission testing, in particular to a power device for testing an intermediate shaft braking device in a transmission assembly. Background Art

[0002] With the development of the automobile industry and the increasingly high requirements of automobile drivers for automobile control, the market of AMT transmission is getting bigger and bigger, and it is also one of the main development directions at present. In order to reduce production costs and improve shifting efficiency, AMT transmission generally uses a sliding sleeve instead of a synchronizer, and at the same time adds a set of devices for braking the intermediate shaft on the intermediate shaft. At present, it is an indispensable part of the AMT transmission. The performance and life of the braking device directly affect the shifting smoothness, shifting speed and reliability of the AMT. Therefore, it is of great practical significance to carry out relevant tests on the intermediate shaft braking device.

[0003] At present, the test of the intermediate shaft brake device of the transmission mainly conducts relevant standard tests on the friction material by means of patch, and then designs the intermediate shaft brake device by equivalent calculation. However, there is currently no professional test system to conduct relevant tests when the transmission is in the whole box state. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a power device for testing the intermediate shaft braking device in a transmission assembly, thereby solving the problem in the prior art of the lack of a device that can provide power for the transmission intermediate shaft braking test when the transmission is in an intact state.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a power device for testing the intermediate shaft braking device in the transmission assembly, including a bracket assembly, a power component installed on the bracket assembly through a moving component, and a sensor unit installed on the power component.

[0006] The power assembly comprises a motor mounted on the moving assembly and a transmission shaft connected to the output shaft of the motor.

[0007] The power assembly also includes a bearing seat installed on the moving assembly, and the transmission shaft passes through the bearing seat.

[0008] One end of the transmission shaft passing through the bearing seat is sequentially installed with a code disc, a flywheel transition, a flywheel and a pressure plate.

[0009] The moving assembly comprises a moving plate and a lead screw assembly installed between the moving plate and the bracket assembly, and the lead screw assembly is used to drive the power assembly to move along the axial direction of the transmission shaft.

[0010] The sensor unit comprises a temperature sensor and a vibration sensor which are mounted on the bearing seat.

[0011] The sensor unit also includes a rotation speed sensor, which is installed on the bearing seat through a rotation speed sensor bracket, and the position of the rotation speed sensor corresponds to the position of the code disk.

[0012] The bracket assembly also includes a power assembly installed on the bracket assembly through a moving assembly, and a sensor unit installed on the power assembly.

[0013] The utility model also has the following technical features:

[0014] The support assembly comprises a fixed bottom plate and a rear flat plate, a first side vertical plate, a front vertical plate and a second side vertical plate which are arranged around the top surface of the fixed bottom plate.

[0015] The bracket assembly also includes an upper plate arranged parallel to the fixed bottom plate, and the upper plate is lower than the first side upright plate and the second side upright plate.

[0016] The height of the front vertical plate is greater than that of the rear flat plate, and the bracket assembly also includes a pressure plate hole opened on the rear flat plate, and the pressure plate hole is coaxial with the transmission shaft.

[0017] A lead screw installation groove is provided at the center position of one side of the upper plate close to the rear plate along the direction of the first side vertical plate, and a lead screw support block is also installed on the outer wall of the rear plate close to the lead screw installation groove.

[0018] A first guide groove is also provided at a central position of the upper flat plate near the front vertical plate along the direction of the first side vertical plate, and a guide rail is installed in the first guide groove.

[0019] First wide grooves are also provided in parallel on both sides of the first guide groove on the upper plate, and the first wide grooves penetrate the upper surface of the upper plate.

[0020] The pressure plate is located in the pressure plate hole.

[0021] The movable plate comprises a plate body and an avoidance groove provided in the middle of one side of the plate body along its own length direction. A second guide groove is also provided on one side surface of the plate body along its own length direction, and the second guide groove cooperates with the guide rail.

[0022] Second wide grooves are also parallelly provided on both sides of the second guide groove on the plate body, and the position of the second wide groove corresponds to the position of the first wide groove.

[0023] A pad installation groove is also provided on the other side of the plate body near the avoidance groove, a motor support pad is installed in the first pad installation groove, and a motor lateral adjustment block is also installed on the motor support pad.

[0024] A second pad installation groove is also provided on the other side of the plate body away from the avoidance groove, a bearing seat support pad is installed in the second pad installation groove, and a bearing seat adjustment support block is also installed on the bearing seat support pad.

[0025] The bearing seat support pad is also provided with a bearing seat limiting groove.

[0026] The screw assembly comprises two screw support seats and a screw penetrating the screw support seats. The screw is also sleeved with a screw nut seat, and the screw nut seat is connected to the plate body.

[0027] One of the screw support seats is installed on the screw support block.

[0028] The lead screw assembly is installed in the lead screw installation groove.

[0029] One end of the transmission shaft passing through the bearing seat is also provided with a connecting flange, and the connecting flange is connected to the code disc.

[0030] Four limiting grooves are evenly spaced on the outer surface of one end of the transmission shaft connected to the connecting flange.

[0031] The power assembly also includes a card plate installed on one end of the bearing seat facing the code disc, the card plate is arranged parallel to the transmission shaft, and a boss card groove is provided on one end of the card plate facing the code disc.

[0032] The power assembly also includes a fixed wrench, which is plate-shaped and includes a large end and a small end connected to each other. A large end groove is provided on the side of the large end facing away from the small end, and a boss is installed on one side of the small end.

[0033] The large end groove cooperates with the limiting groove, and the boss cooperates with the boss clamping groove.

[0034] The power device for testing the intermediate shaft brake device in the transmission assembly also includes a pointer installed on the upper surface of the plate body close to the second side vertical plate and a scale installed on the top of the second side vertical plate.

[0035] The output shaft of the motor is connected to the transmission shaft via a coupling.

[0036] Compared with the prior art, the utility model has the following technical effects:

[0037] (I) The utility model provides a power device for testing the intermediate shaft brake device in the transmission assembly, which can drive the transmission intermediate shaft for subsequent experiments when the transmission is in the whole box state. Firstly, it solves the problem of not having a professional test bench to carry out related tests on the intermediate shaft brake device. Secondly, it solves the problem of the need to constantly adjust the distance when installing the clutch when testing different models of AMT transmissions, thereby reducing the design of a large number of tooling, the workload of continuous tooling replacement, and the matching work of the clutch and the transmission housing, etc.

[0038] (II) The utility model provides a power device for testing the intermediate shaft brake device in the transmission assembly. The test system has the advantages of safe and reliable design, convenient adjustment, large axial load-bearing capacity, strong versatility, and the test can better meet the working conditions of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The overall structure of the utility model is shown in FIG. Figure I .

[0040] Figure 2 The overall structure of the utility model is shown in FIG. Figure II .

[0041] Figure 3 It is a structural schematic diagram of the bracket assembly of the utility model.

[0042] Figure 4 The assembly diagram of the bracket assembly of the utility model is shown in FIG. Figure I .

[0043] Figure 5 The assembly diagram of the bracket assembly of the utility model is shown in FIG. Figure II .

[0044] Figure 6 It is a structural schematic diagram of the mobile flat panel of the utility model.

[0045] Figure 7 It is a structural schematic diagram of the screw assembly of the utility model.

[0046] Figure 8 It is a structural schematic diagram of the transmission shaft of the utility model.

[0047] Fig. 9 It is a structural schematic diagram of the fixed wrench of the utility model.

[0048] Fig.10 It is a schematic diagram of the bearing seat support pad structure of the utility model.

[0049] Fig.11 It is a schematic diagram of the working state of the utility model.

[0050] The meaning of each symbol in the accompanying drawings:

[0051] 1- bracket assembly, 2- moving assembly, 3- power assembly, 4- sensor unit, 5- pointer, 6- scale.

[0052] 1-1 fixed bottom plate, 1-2 rear plate, 1-3 first side vertical plate, 1-4 front vertical plate, 1-5 second side vertical plate, 1-6 upper plate, 1-7 pressure plate hole, 1-8 screw mounting groove, 1-9 screw support block, 1-10 first guide groove, 1-11 guide rail, 1-12 first wide groove, 13- transverse support plate.

[0053] 2-1 moving plate, 2-2 lead screw assembly.

[0054] 3-1 motor, 3-2 transmission shaft, 3-3 bearing seat, 3-4 code disc, 3-5 flywheel transition, 3-6 flywheel, 3-7 pressure plate, 3-8 connecting flange, 3-9 limit groove, 3-10 clamping plate, 3-11 boss clamping slot, 3-12 fixing wrench, 3-13 coupling.

[0055] 4-1 temperature sensor, 4-2 vibration sensor, 4-3 speed sensor, 4-4 speed sensor bracket.

[0056] 2-1-1 plate body, 2-1-2 avoidance groove, 2-1-3 second guide groove, 2-1-4 second wide groove, 2-1-5 first pad installation groove, 2-1-6 motor support pad, 2-1-7 motor lateral adjustment block, 2-1-8 second pad installation groove, 2-1-9 bearing seat support pad, 2-1-10 bearing seat adjustment support block, 2-1-11 bearing seat limit groove.

[0057] 2-2-1 screw support seat, 2-2-2 screw, 2-2-3 screw nut seat.

[0058] 3-12-1 big end, 3-12-2 small end, 3-12-3 big end groove, 3-12-4 boss.

[0059] The specific contents of the utility model are further explained in detail below in conjunction with the embodiments. DETAILED DESCRIPTION

[0060] All components in the present invention, unless otherwise specified, are components known in the prior art.

[0061] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of the present application fall within the protection scope of the present invention.

[0062] Embodiment 1:

[0063] In order to better study the performance and reliability of the intermediate shaft brake device in the transmission and to facilitate the testing requirements of transmissions of different models, this embodiment provides a power device for testing the intermediate shaft brake device in the transmission assembly, such as Figure 1-Figure 2 As shown, it includes a bracket assembly 1 , a power assembly 3 installed on the bracket assembly 1 through a moving assembly 2 , and a sensor unit 4 installed on the power assembly 3 .

[0064] The power assembly 3 includes a motor 3-1 mounted on the moving assembly 2 and a transmission shaft 3-2 connected to the output shaft of the motor 3-1.

[0065] The power assembly 3 also includes a bearing seat 3-3 installed on the moving assembly 2, and the transmission shaft 3-2 passes through the bearing seat 3-3.

[0066] The transmission shaft 3-2 passes through one end of the bearing seat 3-3 and is sequentially installed with a code disc 3-4, a flywheel transition 3-5, a flywheel 3-6 and a pressure plate 3-7.

[0067] The moving assembly 2 includes a moving plate 2-1 and a screw assembly 2-2 installed between the moving plate 2-1 and the bracket assembly 1, and the screw assembly 2-2 is used to drive the power assembly 3 to move along the axial direction of the transmission shaft 3-2.

[0068] The sensor unit 4 includes a temperature sensor 4-1 and a vibration sensor 4-2 mounted on the bearing seat 3-3.

[0069] The sensor unit 4 also includes a rotation speed sensor 4-3, which is installed on the bearing seat 3-3 through a rotation speed sensor bracket 4-4. The position of the rotation speed sensor 4-3 corresponds to the position of the code disk 3-4.

[0070] By installing the lead screw support block 1-9 on the rear plate 1-2 of the bracket assembly 1, installing the lead screw nut seat 2-2-3 on the lower surface of the mobile plate 2-1, and realizing the axial movement function of all the components installed on the mobile plate 2-1 through the guide rail 1-11 and the lead screw assembly 2-2, on this basis, the axial movement distance of the power component 3 is controlled by the cooperation of the pointer 5 fixed on the mobile plate 2-1 and the scale 6 fixed on the bracket assembly 1. The problem of matching the distance between the front end face of the flywheel 3-6 installed on the test equipment and the stop of the transmission clutch housing when the intermediate shaft brake device is tested is solved, and then the problem of constantly replacing the tooling to ensure the distance between the front end face of the flywheel 3-6 and the stop of the transmission clutch housing when testing different models of AMT is solved, saving the design time and processing cost of the tooling.

[0071] A speed sensor bracket 4-4 is installed on one side of the bearing seat 3-3, and the speed sensor 4-3 is fixed on the speed sensor bracket 4-4. The front end of the transmission shaft 3-2 is installed with a code disc 3-4. When the bearing seat 3-3 moves axially with the moving plate 2-1, the correct installation position of the speed sensor 4-3 and the code disc 3-4 will not be changed, which solves the problem of adjusting the position of the speed sensor 4-3 relative to the code disc 3-4 in the previous split installation. The arrangement of the speed sensor here, as a feedback signal of the motor speed, cooperates with the motor encoder to realize the closed-loop control of the motor PID. When the speed of the speed sensor 4-3 differs greatly from the speed of the motor encoder, the test stand realizes the speed difference alarm function, reminding to check whether the fixing bolts of the coupling 3-13 are loose, to prevent the coupling 3-13 from being damaged due to long-term slipping.

[0072] As a preferred embodiment of this invention:

[0073] like Figure 3-Figure 5 As shown, the bracket assembly 1 includes a fixed base plate 1-1 and a rear flat plate 1-2, a first side vertical plate 1-3, a front vertical plate 1-4 and a second side vertical plate 1-5 installed around the top surface of the fixed base plate 1-1.

[0074] The bracket assembly 1 also includes an upper flat plate 1-6 arranged parallel to the fixed bottom plate 1-1, and the upper flat plate 1-6 is lower than the first side upright plate 1-3 and the second side upright plate 1-5.

[0075] The height of the front vertical plate 1-4 is greater than the height of the rear flat plate 1-2, and the bracket assembly 1 also includes a pressure plate hole 1-7 opened on the rear flat plate 1-2, and the pressure plate hole 1-7 is coaxial with the transmission shaft 3-2.

[0076] A screw installation groove 1-8 is provided at the center position of the upper plate 1-6 near the rear plate 1-2 along the direction of the first side vertical plate 1-3, and a screw support block 1-9 is also installed on the outer wall of the rear plate 1-2 near the screw installation groove 1-8.

[0077] The upper flat plate 1-6 is also provided with a first guide groove 1-10 at a central position along the direction of the first side vertical plate 1-3 on one side close to the front vertical plate 1-4, and a guide rail 1-11 is installed in the first guide groove 1-10.

[0078] First wide grooves 1-12 are also provided in parallel on both sides of the first guide groove 1-10 on the upper plate 1-6, and the first wide grooves 1-12 pass through the upper surface of the upper plate 1-6.

[0079] The pressure plate 3-7 is located in the pressure plate hole 1-7.

[0080] The bracket assembly 1 is positioned by insertion and then welded, which ensures the correct welding position requirements of the bracket while reducing the design of fixed tooling required during welding.

[0081] See the components of bracket assembly 1 for details. Figure 3-Figure 5 As shown, it mainly includes a fixed bottom plate 1-1, a rear flat plate 1-2, a first side vertical plate 1-3, a front vertical plate 1-4, a second side vertical plate 1-5, and an upper flat plate 1-6. In order to enhance the structural strength, a transverse support plate 1-13 is arranged between the first side vertical plate 1-3 and the second side vertical plate 1-5.

[0082] The fixed bottom plate 1-1 adopts a "U"-shaped structure, which makes the contact area with the iron floor as small as possible while ensuring the support strength, so as to facilitate the plane adjustment with the iron floor. The upper surface of the fixed bottom plate 1-1 is processed with a "well"-shaped groove. When welding, first insert the horizontal support plate 1-13 and the rear flat plate 1-2 on the fixed bottom plate 1-1 respectively, and use a dial indicator to adjust the verticality before welding, and then use the same method to insert the first side vertical plate 1-3 and the second side vertical plate 1-5, adjust it to be perpendicular to the fixed bottom plate 1-1 and the horizontal support plate 1-13 before welding. Use a height gauge to measure the height of the upper surface of the welded horizontal support plate 1-13 and the rear flat plate 1-2 and the fixed bottom plate 1-1, and then place the upper plate 1-6 on the upper surface of the horizontal support plate 1-13 and the rear flat plate 1-2 and weld, and finally insert the front vertical plate 1-4 to adjust the verticality to complete the final welding work. The upper surface of the upper plate 1-6 of the bracket assembly 1 after welding is finely processed, and then the pressure plate hole 1-7 on the front vertical plate 1-4 is processed to ensure that the height between the upper surface of the upper plate 1-6 and the pressure plate hole 1-7 is within the design range. The technical features and functions of the bracket assembly 1 are as follows:

[0083] A. Welding is performed by insertion, reasonable welding procedures and fine processing of the upper surface of the upper plate 1-6 and the width direction of the first guide groove 1-10 after welding. The pressure plate hole 1-7 on the front vertical plate 1-4 is processed using the generated reference plane to ensure the positional relationship of the pressure plate hole 1-7 relative to the first guide groove 1-10 and the upper surface of the upper plate 1-6.

[0084] B. The lateral support plate 1-13, the first side upright plate 1-3, the second side upright plate 1-5, and the rear flat plate 1-2 on the bracket assembly 1 are all lightened while ensuring strength and are welded to the fixed base plate 1-1 by insertion, which not only ensures the positional relationship but also reduces the problem of thermal deformation after welding.

[0085] C. The function of the bracket assembly 1 is mainly to install the screw assembly 2-2, the moving plate 2-1, the guide rail 1-11 and bear the weight of all movable parts installed on the moving plate 2-1 and the transmission sample matched with the front vertical plate 1-4, so that the test system is fixed on the iron floor.

[0086] As a preferred embodiment of this invention:

[0087] like Figure 6 As shown, the movable plate 2-1 includes a plate body 2-1-1 and an avoidance groove 2-1-2 opened in the middle of one side of the plate body 2-1-1 along its own length direction, and a second guide groove 2-1-3 is also opened on one side surface of the plate body 2-1-1 along its own length direction, and the second guide groove 2-1-3 cooperates with the guide rail 1-11.

[0088] Second wide grooves 2-1-4 are also provided in parallel on both sides of the second guide groove 2-1-3 on the plate body 2-1-1, and the position of the second wide groove 2-1-4 corresponds to the position of the first wide groove 1-12.

[0089] A pad installation groove 2-1-5 is also provided on the other side of the plate body 2-1-1 near the avoidance groove 2-1-2, a motor support pad 2-1-6 is installed in the first pad installation groove 2-1-5, and a motor lateral adjustment block 2-1-7 is also installed on the motor support pad 2-1-6.

[0090] A second pad installation groove 2-1-8 is also provided on the other side of the plate body 2-1-1 away from the avoidance groove 2-1-2, and a bearing seat support pad 2-1-9 is installed in the second pad installation groove 2-1-8, and a bearing seat adjustment support block 2-1-10 is also installed on the bearing seat support pad 2-1-9.

[0091] The bearing seat support pad 2-1-9 is also provided with a bearing seat limiting groove 2-1-11.

[0092] The bearing seat support pad 2-1-9 is provided with a bearing seat limit groove 2-1-11, and two positioning pin holes are provided on both sides of the bearing seat 3-3. The cylindrical pin cooperates with the bearing seat limit groove 2-1-11 to limit the freedom of the bearing seat 3-3. The bearing seat 3-3 can only move left and right along the bearing seat limit groove 2-1-11 and move in the height direction relative to the bearing seat support pad 2-1-9. When adjusting the coaxiality of the bearing seat 3-3 relative to the pressure plate hole 1-7 on the front vertical plate 1-4, only the height and left and right directions need to be adjusted. When adjusting the height direction, there is no need to consider the swing problem of the bearing shaft. At the same time, when adjusting the left and right directions, there is no need to consider the swing problem of the bearing shaft, which solves the adjustment difficulty caused by the swing problem during the adjustment of the bearing seat 3-3 and reduces the adjustment difficulty.

[0093] The technical feature of this part is that the structural arrangement of the lead screw and the guide slider is adopted to realize the axial movement and distance adjustment function of the movable plate 2-1. Under the condition of ensuring the structural strength, the first wide grooves 1-12 (two places) are processed on the upper surface of the upper plate 1-6, and the second wide grooves 2-1-4 (two places) are also opened on the lower surface of the movable plate 2-1 to reduce the contact area between the two, reduce the difficulty of processing the flatness of the surfaces of the two, reduce friction resistance, and thus reduce the force of the movable lead screw.

[0094] The mobile plate 2-1 is milled with a first pad installation groove 2-1-5 (4 places) for installing the motor support pad 2-1-6, and a second pad installation groove 2-1-8 for installing the bearing seat support pad 2-1-9. The surface of the first pad installation groove 2-1-5 and the second pad installation groove 2-1-8 is finely processed to ensure the flatness of the groove, reducing the difficulty of processing the flatness of the entire plane of the upper surface of the mobile plate 2-1. And cooperate with the motor support pad 2-1-6 and the bearing seat support pad 2-1-9 respectively, so as to facilitate the coaxial assembly adjustment of the bearing seat 3-3 and the pressure plate hole 1-7 on the bracket assembly 1, and the coaxial assembly adjustment of the bearing seat 3-3 and the motor drive shaft 3-2. When the center height of the bearing seat 3-3 relative to the pressure plate hole 1-7 on the bracket assembly 1 has a large error, the center height adjustment problem can be solved by separately processing and adjusting the thickness of the bearing seat support pad 2-1-9. When the center height of the motor shaft differs greatly from the center height of the bearing seat 3-3, the thickness of the motor support pad 2-1-6 can also be processed and adjusted to solve the problem of coaxiality adjustment between the motor shaft and the bearing seat, ensuring that the coupling 3-13 can be installed correctly. The purpose of the above-mentioned assembly design is mainly to solve the problem that the coaxiality between the motor 3-1, the bearing seat 3-3 and the pressure plate hole 1-7 on the bracket assembly 1 cannot be adjusted due to the flatness processing error of the upper surface of the moving plate 2-1 and the change in the height direction relative to the upper plate 1-6 during the movement, thereby requiring the moving plate 2-1 to be reprocessed, increasing the processing difficulty and cost.

[0095] As a preferred embodiment of this invention:

[0096] like Figure 7 As shown, the screw assembly 2-2 includes two screw support seats 2-2-1 and a screw 2-2-2 inserted through the screw support seats 2-2-1. The screw 2-2-2 is also sleeved with a screw nut seat 2-2-3, and the screw nut seat 2-2-3 is connected to the plate body 2-1-1.

[0097] One of the screw support seats 2-2-1 is installed on the screw support block 1-9.

[0098] The screw assembly 2-2 is installed in the screw installation groove 1-8.

[0099] As a preferred embodiment of this invention:

[0100] like Figure 8 As shown, one end of the transmission shaft 3-2 passing through the bearing seat 3-3 is also installed with a connecting flange 3-8, and the connecting flange 3-8 is connected to the code disc 3-4.

[0101] Four limiting grooves 3-9 are evenly spaced on the outer surface of one end of the transmission shaft 3-2 connected to the connecting flange 3-8.

[0102] As a preferred embodiment of this invention:

[0103] like Fig. 9 As shown, the power assembly 3 also includes a card plate 3-10 installed on one end of the bearing seat 3-3 facing the code disc 3-4, the card plate is arranged parallel to the transmission shaft 3-2, and a boss card groove 3-11 is opened on the end of the card plate 3-10 facing the code disc 3-4.

[0104] The power assembly 3 also includes a fixed wrench 3-12, which is plate-shaped and includes a large end 3-12-1 and a small end 3-12-2 connected together. A large end groove 3-12-3 is provided on the side of the large end 3-12-1 facing away from the small end 3-12-2, and a boss 3-12-4 is installed on one side of the small end 3-12-2.

[0105] The large end groove 3-12-3 cooperates with the limit groove 3-9, and the boss 3-12-4 cooperates with the boss slot 3-11.

[0106] A clamping plate 3-10 is fixed with bolts on the other side of the bearing seat 3-3, and a limit groove 3-9 is opened on it. The transmission shaft 3-2 is milled with mutually parallel boss clamping grooves 3-11 (4 places). A fixed spanner 3-12 is provided on the test system. The large end 3-12-1 of the spanner has a large end groove 3-12-3, and the small end 3-12-2 has a boss 3-12-4. When installing or removing the flywheel 3-6 and the pressure plate 3-7, the transmission shaft 3-2 needs to be fixed. At this time, it is only necessary to match the large end groove 3-12-3 of the fixed spanner 3-12 with the boss clamping groove 3-11 on the transmission shaft 3-2, and the boss 3-12-4 on the fixed spanner 3-12 with the groove of the fixed clamping plate 3-10, so that the transmission shaft 3-2 is fixed to the bearing seat 3-3 through the fixed spanner 3-12, thereby achieving the problem of fixing the shaft and solving the problem of difficulty in fixing the torque when installing the pressure plate 3-7 due to the inability to fix the shaft. In order to prevent the motor from being started and the test system from running when the fixed spanner 3-12 is not removed from the transmission shaft 3-2, a switch for detecting an alarm is installed on the side panel of the bracket assembly 1. A steel wire rope is fixed to one end of the switch, and the other end of the steel wire rope is fixed to the small end face of the fixed spanner 3-12. By adjusting the length of the steel wire rope, when the transmission shaft 3-2 is fixed with the fixed spanner 3-12, the switch must be pulled out, the detection switch is in the disconnected state, the test system is in the alarm state, and the motor cannot run, thereby playing a safety protection role. By cooperating with the fixed spanner 3-12, the risk problem of using the fixed spanner 3-12 is solved.

[0107] As a preferred embodiment of this invention:

[0108] The power device for testing the intermediate shaft brake device in the transmission assembly also includes a pointer 5 installed on the upper surface of the plate body 2-1-1 close to the second side vertical plate 1-5 and a scale 6 installed on the top of the second side vertical plate 1-5.

[0109] The mobile and distance control functions of the test system are described as follows:

[0110] First, fix the guide rail 1-11 in the first guide groove 1-10 of the upper plate 1-6 with screws, and then fix the screw assembly 2-1 to the movable plate 2-1 through the screw nut seat 2-2-3 with screws, lift the movable plate 2-1 so that the second guide groove 2-1-3 on its lower surface fits with the guide rail 1-11, and then put the movable plate 2-1 on the upper surface of the upper plate 1-6, fix the screw support seat 2-2-1 on the screw support block 1-9 with screws, fine-tune the position of the screw bracket to ensure that there is clearance for the screw 2-2-2, and then use screws to fix it. The screw support block 1-9 is fixed on the rear plate 1-2 of the bracket assembly 1; the pointer 5 is fixed on the movable plate 2-1, and the scale 6 is fixed on the second side vertical plate 1-5 by the positioning screw. After the test system is installed, the position of the screw assembly 2-2 is adjusted, and a measuring tool is used to ensure that the distance between the front end surface of the flywheel 3-6 facing away from the code disk 3-4 and the transmission clutch housing is 66.7mm (the standard installation distance specified by ISO). Then, the position of the pointer 5 is slightly adjusted so that the needle tip is aligned with the "0" scale line of the scale 6, and the calibration of the moving distance control is completed.

[0111] As a preferred embodiment of this invention:

[0112] The output shaft of the motor 3-1 is connected to the transmission shaft 3-2 via a coupling 3-13.

[0113] The specific working process of this embodiment is as follows:

[0114] Description of the overall assembly process of the test system:

[0115] (1) Installing the bracket assembly 1: The bracket assembly 1 is first placed on the iron floor with a T-slot in the test room and fixed to the iron floor with T-bolts. The fit between the lower surface of the fixed base plate 1-1 and the upper surface of the iron floor is checked with a feeler gauge. After adjustment, the bolts are fixed according to the torque requirements.

[0116] (2) Installation of the screw assembly 2-1 and the movable plate 2-1: First, fix the guide rail 1-11 in the first guide groove 1-10 of the upper plate 1-6 with screws, and then fix the screw assembly 2-1 to the movable plate 2-1 with screws through the screw nut seat 2-2-3, lift the movable plate 2-1 so that the second guide groove 2-1-3 on its lower surface fits with the guide rail 1-11, and then place the movable plate 2-1 on the upper surface of the upper plate 1-6, fix the screw support seat 2-2-1 on the screw support block 1-9 with screws, fine-tune the position of the screw bracket to ensure that there is clearance for the screw 2-2-2, and then fix the screw support block 1-9 to the rear plate 1-2 of the bracket assembly 1 with screws to complete the installation of the screw and the movable plate.

[0117] (3) Installation and adjustment of the bearing seat 3-3: First, correctly install the bearing seat support pad 2-1-9 in the second pad installation groove 2-1-8 on the upper surface of the movable plate 2-1 through two positioning pins and fix it with screws. Then, install the locating pin on the bearing seat 3-3 and place it in the bearing seat limit groove 2-1-11 on the bearing seat support pad 2-1-9. The position of the bearing seat 3-3 can be adjusted left and right by adjusting the bearing seat support block 2-1-10 in cooperation with the screw. The left and right position of the transmission shaft 3-2 relative to the pressure plate hole 1-7 is adjusted by the dial indicator. After the left and right position adjustment is completed, tighten the bearing seat 3-3 fixing bolts, and adjust the height direction position of the transmission shaft 3-2 relative to the pressure plate hole 1-7 by the dial indicator (adjust by re-repairing the bearing seat support pad 2-1-9 or padding with copper sheet). After the height direction adjustment is completed, fine-tune the left and right directions again, and then fix the bearing seat 3-3, and check the circumferential coaxiality position of the transmission shaft 3-2 relative to the pressure plate hole 1-7 by the dial indicator. If the requirements are met, the bearing seat 3-3 is installed. If not, it needs to be adjusted again according to the above steps.

[0118] (4) Installation and adjustment of the motor 3-1 and the bearing seat 3-3: First, install the motor support pad 2-1-6 at the first pad installation groove 2-1-5 on the movable plate 2-1, and adjust its position relative to the movable plate 2-1, and then fix it with screws. The motor 3-1 is hoisted on the motor support pad 2-1-6, and the motor is fixed with bolts. The motor is adjusted using an alignment instrument (the motor support pad 2-1-6 can be repaired or adjusted by padding with copper sheet during the adjustment process). The adjustment method is similar to (3) the adjustment of the bearing seat. After the coaxiality of the motor shaft and the bearing seat shaft is adjusted, the coupling 3-13 is installed and torqued.

[0119] (5) Installation and calibration of the scale: After the coaxiality of the motor 3-1 and the bearing seat 3-3 relative to the pressure plate hole 1-7 of the bracket assembly 1 is adjusted, install the code disc 3-4 at the front end of the transmission shaft 3-2, and then install the flywheel transition 3-5 and the flywheel 3-6 in turn, move the screw assembly 2-1, and use a measuring tool to ensure that the distance between the front end surface of the flywheel 3-6 and the transmission clutch housing is 66.7mm (the standard installation distance specified by ISO), install the scale 6 on the second side vertical plate 1-5 of the bracket assembly 1, and then install the pointer 5 on the moving plate 2-1, adjust the needle tip of the pointer 5 to align with the "0" scale line of the scale 6, fix the pointer 5, and the calibration work of the moving distance control is completed.

[0120] (6) Fixing of the speed measuring device and installation of the locking device of the transmission shaft 3-2: Install the speed sensor bracket 4-4 and the speed sensor 4-3 on one side of the bearing seat 3-3 and adjust the proximity distance between them and the code disk 3-4. Then, fine-tune the speed sensor bracket 4-4 so that the speed sensor 4-3 faces the code disk 3-4 and tighten the bolts. Install the clamping plate 3-10 on one side of the bearing seat 3-3. When the transmission shaft 3-2 needs to be fixed, unplug the switch and install the fixing wrench 3-12. The large end groove 3-12-3 of the fixing wrench 3-12 cooperates with the limit groove 3-9 on the transmission shaft 3-2. At the same time, the boss 3-12-4 on the fixing wrench 3-12 cooperates with the groove of the fixing clamping plate 3-10, thus completing the fixation of the transmission shaft 3-2 relative to the bearing seat 3-3.

[0121] like Fig.11 As shown, the working process mainly includes the following parts:

[0122] First, install the flywheel 3-6 according to the model of the AMT transmission and the matching engine model, then control the movement of the test system by operating the screw assembly 3, confirm the adjustment to the required test distance (the distance between the front end face of the flywheel 3-6 and the transmission clutch housing) through the ruler 8, fix the screws used to tighten the movable plate 2-1, install the fixing wrench 3-12, fix the rotation of the transmission shaft 3-2, install the clutch assembly and the pressure plate 3-7, and torque the screws that fix the pressure plate 3-7, and then install the test AMT transmission on the other side of the front vertical plate 1-4.

[0123] When the test starts, the motor control unit of the test system controls the motor 3-1 to run to the speed required by the test, and then the SCU control unit of the AMT transmission issues a command to control the clutch to disengage, and the clutch actuator CCA works and disengages the clutch. After the SCU control unit detects that the clutch has been disengaged, the SCU control unit controls the intermediate shaft brake to start working, so that the intermediate shaft speed of the transmission starts to brake. After the braking speed reaches the target value, the brake is released, and then the SCU control unit issues a command to control the clutch to engage. When the speed of one shaft of the transmission is consistent with the speed of the motor, the test will enter the next cycle of work according to the above control method.

[0124] When the speed of motor 3-1 is inconsistent with the speed of encoder 3-4 during the entire test process, the test system will alarm and shut down, indicating that the coupling 3-13 or the motor encoder is faulty; the bearing seat 3-3 is equipped with a temperature sensor 4-1 and a vibration sensor 4-2. When the bearing temperature is too high or the test system vibrates too much during the test, an alarm and shutdown will occur.

[0125] In summary, the power device designed by this patent for testing the intermediate shaft brake device in the transmission assembly can solve the problem of not having a professional test bench to test the intermediate shaft brake device; secondly, it can solve the problem that the distance needs to be adjusted when installing the clutch during the test of different models of AMT transmissions, thereby reducing the design of a large number of tooling, the workload of continuous tooling replacement, and the matching of the clutch and the transmission housing, etc. The test system has a safe and reliable design, convenient adjustment, large axial load capacity, strong versatility, and the test can better meet the working conditions of the whole vehicle.

[0126] The above technical solutions are only preferred specific implementation methods of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be thought of by any technician familiar with the field within the technical scope disclosed by the present utility model without creative work are all covered within the protection scope of the present utility model.

Claims

1. A power device for testing an intermediate shaft brake device in a transmission assembly, comprising a bracket assembly (1), characterized in that: It also includes a power assembly (3) mounted on the bracket assembly (1) via a moving assembly (2), and a sensor unit (4) mounted on the power assembly (3); The power assembly (3) comprises a motor (3-1) mounted on the moving assembly (2) and a transmission shaft (3-2) connected to the output shaft of the motor (3-1); The power assembly (3) further comprises a bearing seat (3-3) mounted on the moving assembly (2), and the transmission shaft (3-2) passes through the bearing seat (3-3); One end of the transmission shaft (3-2) passing through the bearing seat (3-3) is sequentially mounted with a code disc (3-4), a flywheel transition (3-5), a flywheel (3-6) and a pressure plate (3-7); The moving assembly (2) comprises a moving plate (2-1) and a screw assembly (2-2) installed between the moving plate (2-1) and the bracket assembly (1), wherein the screw assembly (2-2) is used to drive the power assembly (3) to move along the axial direction of the transmission shaft (3-2); The sensor unit (4) comprises a temperature sensor (4-1) and a vibration sensor (4-2) mounted on the bearing seat (3-3); The sensor unit (4) further comprises a rotation speed sensor (4-3), wherein the rotation speed sensor (4-3) is mounted on the bearing seat (3-3) via a rotation speed sensor bracket (4-4), and the position of the rotation speed sensor (4-3) corresponds to the position of the code disc (3-4).

2. The power device for testing the intermediate shaft brake device in the transmission assembly as claimed in claim 1, characterized in that: The support assembly (1) comprises a fixed bottom plate (1-1) and a rear flat plate (1-2), a first side vertical plate (1-3), a front vertical plate (1-4) and a second side vertical plate (1-5) which are installed around the top surface of the fixed bottom plate (1-1); The support assembly (1) further comprises an upper plate (1-6) arranged in parallel with the fixed bottom plate (1-1), wherein the upper plate (1-6) is lower than the first side upright plate (1-3) and the second side upright plate (1-5); The height of the front vertical plate (1-4) is greater than the height of the rear flat plate (1-2), and the bracket assembly (1) further comprises a pressure plate hole (1-7) opened on the rear flat plate (1-2), and the pressure plate hole (1-7) is coaxial with the transmission shaft (3-2); A screw installation groove (1-8) is provided at a central position of the upper plate (1-6) on a side close to the rear plate (1-2) along the direction of the first side vertical plate (1-3), and a screw support block (1-9) is also installed on the outer wall of the rear plate (1-2) on a side close to the screw installation groove (1-8); A first guide groove (1-10) is also provided at a central position of the upper plate (1-6) near the front vertical plate (1-4) in the direction of the first side vertical plate (1-3), and a guide rail (1-11) is installed in the first guide groove (1-10); First wide grooves (1-12) are also provided in parallel on both sides of the first guide groove (1-10) on the upper plate (1-6), and the first wide grooves (1-12) penetrate the upper surface of the upper plate (1-6); The pressure plate (3-7) is located in the pressure plate hole (1-7).

3. The power device for testing the intermediate shaft brake device in the transmission assembly as claimed in claim 2, characterized in that: The movable plate (2-1) comprises a plate body (2-1-1) and an avoidance groove (2-1-2) provided on the middle part of one side of the plate body (2-1-1) along its own length direction; a second guide groove (2-1-3) is also provided on one side surface of the plate body (2-1-1) along its own length direction; the second guide groove (2-1-3) cooperates with the guide rail (1-11); The plate body (2-1-1) is also provided with second wide grooves (2-1-4) in parallel on both sides of the second guide groove (2-1-3), and the position of the second wide groove (2-1-4) corresponds to the position of the first wide groove (1-12); A first pad installation groove (2-1-5) is also provided on the other side of the plate body (2-1-1) near the avoidance groove (2-1-2), a motor support pad (2-1-6) is installed in the first pad installation groove (2-1-5), and a motor lateral adjustment block (2-1-7) is also installed on the motor support pad (2-1-6); A second pad installation groove (2-1-8) is also provided on the other side of the plate body (2-1-1) away from the avoidance groove (2-1-2), a bearing seat support pad (2-1-9) is installed in the second pad installation groove (2-1-8), and a bearing seat adjustment support block (2-1-10) is also installed on the bearing seat support pad (2-1-9); The bearing seat support pad (2-1-9) is also provided with a bearing seat limiting groove (2-1-11).

4. The power device for testing the intermediate shaft brake device in the transmission assembly as claimed in claim 3, characterized in that: The screw assembly (2-2) comprises two screw support seats (2-2-1) and a screw (2-2-2) inserted into the screw support seats (2-2-1); the screw (2-2-2) is also sleeved with a screw nut seat (2-2-3); and the screw nut seat (2-2-3) is connected to the plate body (2-1-1); One of the screw support seats (2-2-1) is installed on the screw support block (1-9); The screw assembly (2-2) is installed in the screw installation groove (1-8).

5. The power device for testing the intermediate shaft brake device in the transmission assembly as claimed in claim 1, characterized in that: One end of the transmission shaft (3-2) passing through the bearing seat (3-3) is also provided with a connecting flange (3-8), and the connecting flange (3-8) is connected to the code disc (3-4); Four limiting grooves (3-9) are evenly spaced on the outer surface of one end of the transmission shaft (3-2) connected to the connecting flange (3-8).

6. The power device for testing the intermediate shaft brake device in the transmission assembly as claimed in claim 5, characterized in that: The power assembly (3) further comprises a card plate (3-10) mounted on one end of the bearing seat (3-3) facing the code disc (3-4), the card plate is arranged in parallel with the transmission shaft (3-2), and a boss card groove (3-11) is provided on one end of the card plate (3-10) facing the code disc (3-4); The power assembly (3) further comprises a fixed wrench (3-12), the fixed wrench (3-12) is plate-shaped, and comprises a large end (3-12-1) and a small end (3-12-2) connected to each other, a large end groove (3-12-3) is provided on the side of the large end (3-12-1) facing away from the small end (3-12-2), and a boss (3-12-4) is installed on one side of the small end (3-12-2); The large end groove (3-12-3) cooperates with the limiting groove (3-9), and the boss (3-12-4) cooperates with the boss clamping groove (3-11).

7. The power device for testing the intermediate shaft brake device in the transmission assembly as claimed in claim 3, characterized in that: The power device for testing the intermediate shaft brake device in the transmission assembly also includes a pointer (5) installed on the upper surface of the plate body (2-1-1) close to the second side vertical plate (1-5) and a scale (6) installed on the top of the second side vertical plate (1-5).

8. The power device for testing the intermediate shaft brake device in the transmission assembly as claimed in claim 3, characterized in that: The output shaft of the motor (3-1) is connected to the transmission shaft (3-2) via a coupling (3-13).

Images