CN214066504U - Longitudinal speed changer test bed - Google Patents

Abstract

The utility model relates to a test equipment field specifically provides a indulge and put derailleur test bench. The test bed comprises a test bed body, wherein an input motor, an adjusting device and two output motors are arranged on the test bed body, and the input motor is connected with the input end of a transmission; the output motor is connected with the output end of the speed changer, and the test bed body is provided with a first working position and a second working position; the adjusting device is used for adjusting the relative positions of the input motor and the output motor along the vertical direction and the length direction and the width direction of the test bed body. This application is equipped with the output motor of two different characteristics, has expanded the test range, has solved the compatibility problem, simplifies the structure, and the noise is little, has improved the reliability of test bench body, through the diversified position of adjusting input motor and output motor of adjusting device, makes it counterpoint accurate, and measuring result is accurate, and the independence of each part is strong to each other does not influence, can not lead to whole test bench bring to rest because of local problem.

Description

Longitudinal speed changer test bed

Technical Field

The utility model relates to a test equipment field especially relates to a indulge and put derailleur test bench.

Background

The automobile transmission is a key assembly of an automobile, and the performance of the automobile transmission directly influences the dynamic property, the economical efficiency and the reliability of the automobile. Therefore, relevant standards of China, QC/T568-1999 automobile mechanical transmission rack test method and GB5372-85 automobile transmission repair technical conditions, make corresponding regulations on technical requirements of automobile transmission sizing tests, new product factory tests and maintenance factory tests, and definitely require rack tests.

Compared with a front-drive transmission, a longitudinal rear-drive transmission has a wider application range, and can be matched with passenger vehicles (such as cars and SUVs) and commercial vehicles (such as pickup trucks and light trucks). The passenger car mostly uses a gasoline engine, and the output of the engine has the characteristic of high speed and low torque; commercial vehicles mostly use diesel engines, and the output of the engines has the characteristic of low speed and high torque. The above characteristics of the vertical transmission impose high requirements on the test bench. The test bench needs to satisfy the following characteristics:

the input motor can simulate the output characteristic of gasoline engine or diesel engine below 1100 Nm.

Because the input motor can simulate the characteristics of high speed and low torque of a gasoline engine and low speed and high torque of a diesel engine, the output motor also correspondingly has different characteristics. For example, the transmission has a gear ratio of 5 in the 1 st gear and 1 in the 6 th gear. When the engine is input, the maximum speed is 6000rpm and the maximum torque is 750 Nm. The requirements for the output motor are: the output rotating speed of the 1 gear is 1200rpm, and the torque is 3750 Nm; the output speed of the 6 th gear is 6000rpm, and the torque is 750 Nm. The output motor is required to meet 6000rpm and 3750 Nm.

When the engine is used as an input, the maximum rotating speed is 3000rpm, and the maximum torque is 1000 Nm. The requirements for the output motor are: the output rotating speed of the 1 gear is 600rpm, and the torque is 5000 Nm; the output speed in gear 6 is 3000rpm and the torque is 1000 Nm. The output motor is required to satisfy 3000rpm and 5000 Nm. The two are considered comprehensively, and the output motor not only needs to meet the highest rotating speed of 6000rpm, but also needs to meet the maximum torque of 5000 Nm.

If one motor simultaneously meets the two conditions, the speed of the motor can reach 6000rpm and 5000Nm, and the motor has the characteristic of high speed and high torque. However, no motor supplier has this type of motor after market research. If the characteristics are simultaneously met, one feasible scheme is to add a two-stage gear box which is not lower than two gears between the output end of the transmission and the output motor, adjust the output characteristics of the power assembly and reduce the bearing pressure of the output motor. However, the mode can cause the problems that the two-stage gear box is easy to damage, the noise is high, the transmission system is complex, the axial length of the rack is too long, and the like.

SUMMERY OF THE UTILITY MODEL

To solve the above technical problem or at least partially solve the above technical problem, the present disclosure provides a longitudinally arranged transmission test stand.

The utility model provides a indulge and put derailleur test bench, including the test bench body, be equipped with on the test bench body:

the output shaft of the input motor is used for being connected with the input end of the transmission;

the output shafts of the output motors are used for being connected with the output end of the transmission, a first working position and a second working position are arranged on the test bed body, when the input motor is located at the first working position, the input motor is opposite to one output motor, and when the input motor is located at the second working position, the input motor is opposite to the other output motor;

and the adjusting device is used for adjusting the relative positions of the input motor and the output motor along the vertical direction and the length direction and the width direction of the test bed body.

Optionally, a first bottom plate is arranged on the test bed body, a first rack used for placing the input motor is arranged on the first bottom plate, the first rack moves along the width direction of the test bed body relative to the first bottom plate, and the adjusting device comprises a first driving device used for driving the first rack to move.

Optionally, a first shaft sleeve is arranged on the first rack, the first driving device comprises a first driving shaft and a first driving piece used for driving the first driving shaft to rotate, the first driving piece is arranged on the test bed body, and the first driving shaft is in threaded fit with the first shaft sleeve.

Optionally, a second bottom plate is arranged on the test bed body, a second rack used for placing the output motor is arranged on the second bottom plate, the second rack moves along the length direction of the test bed body relative to the second bottom plate, and the adjusting device comprises a second driving device used for driving the second rack to move.

Optionally, a second shaft sleeve is arranged on the second rack, the second driving device includes a second driving shaft and a second driving member for driving the second driving shaft to rotate, the second driving member is arranged on the second bottom plate, and the second driving shaft is in threaded fit with the second shaft sleeve.

Optionally, a lifting table is arranged on the second rack, the output motor is arranged at the top of the lifting table, the lifting table moves in the vertical direction relative to the second rack, and the adjusting device comprises a third driving device for driving the lifting table to move.

Optionally, be equipped with the lifter on the second rack, the lifter sets up along vertical direction, third drive arrangement includes the third drive shaft and is used for driving third drive shaft pivoted third driving piece, the third drive shaft is used for driving the lifter is flexible along vertical direction.

Optionally, the third driving element includes a fourth driving shaft for driving the third driving shaft to rotate, and the fourth driving shaft is perpendicular to the third driving shaft.

Optionally, an output shaft of the output motor is connected with an output end of the transmission in a universal manner.

Optionally, a plurality of support frames are arranged on the test bed body, and bearing seats used for supporting the output shaft of the output motor and the output shaft of the transmission are arranged on the support frames.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

this application is equipped with the output motor of two different characteristics, has expanded the test range, has solved two kinds of compatible problems of indulging the derailleur of matching gasoline engine version and diesel engine version, and the simplified structure, the noise is little, the reliability of test bench body has been improved, the position of diversely adjusting input motor and output motor through adjusting device makes it counterpoint the accuracy, and measuring result is accurate, and the independence of each part is strong to each other does not influence, can not lead to whole test bench shut down because of local problem.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic illustration of a longitudinal transmission test stand according to an embodiment of the present disclosure;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a schematic view of the interior of a second pedestal according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of an arrangement manner of an input motor according to an embodiment of the present disclosure.

10, a test bed body; 20. inputting a motor; 30. an output motor; 40. a transmission; 50. a first base plate; 51. a first stage; 52. a first bushing; 53. a first drive shaft; 54. a first hand wheel; 60. a second base plate; 61. a second stage; 62. a second drive shaft; 63. a second hand wheel; 70. a lifting platform; 71. a lifting rod; 72. a guide post; 73. a third drive shaft; 74. a fourth drive shaft; 75. a third hand wheel; 80. a support frame; 81. and a bearing seat.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

As shown in fig. 1, the longitudinally arranged transmission test bed provided by the embodiment of the present application includes a test bed body 10, an input motor 20, an adjusting device and two output motors 30 are arranged on the test bed body 10, and the two output motors 30 have different characteristics, and the two output motors 30 with different characteristics are respectively matched with the longitudinally arranged transmissions 40 of the gasoline engine version and the diesel engine version.

As shown in fig. 1, the output shaft of the input motor 20 is used to connect with the input end of the transmission 40, i.e. the output shaft of the input motor 20 can drive the input shaft of the transmission 40 to rotate. The output shaft of the output motor 30 is used for being connected with the output end of the transmission 40, and the output shaft of the output motor 30 is driven to rotate through the output shaft of the transmission 40, so that the rotating speed and the torque output by the transmission 40 are obtained. The test bed body 10 is provided with a first working position and a second working position, when the input motor 20 is in the first working position, the input motor 20 is opposite to one of the output motors 30, and when the input motor 20 is in the second working position, the input motor 20 is opposite to the other output motor 30. The relative position here means that when the input motor 20 is in the first operating position or the second operating position, the output shaft of the input motor 20 and the axis of the output shaft of the output motor 30 corresponding to the output motor 20 are coincident or have a small angle deviation, so that the transmission 40 can be installed between the input motor 20 and the output motor 30. The position of the input motor 20 can be adjusted through the hoisting equipment, so that the input motor 20 can move between the first working position and the second working position, and after the input motor 20 moves to the set position, the input motor 20 is fixed on the test bed body 10 through bolts and other modes.

Specifically, the positions of the first working position and the second working position are determined by the positions of the two output motors 30, and the specific positions of the two output motors 30 are not limited, so that only when one of the output motors 30 works in cooperation with the input motor 20, the other output motor 30 does not affect the placement of the input motor 20. For example, the two output motors 30 are arranged oppositely, the first working position and the second working position of the input motor 20 are both located between the two output motors 30, but the directions of the output shafts of the input motor 20 located at the first working position and the second working position are opposite, at this time, the length of the test bed body 10 is longer, but the width is smaller. For another example, two output motors 30 may be arranged in parallel, where the first working position is located at a position opposite to one of the output motors 30, and the second working position is located at a position opposite to the other output motor 30, where the length of the test bed body 10 is reduced, but the width thereof is increased.

The adjusting device is used for adjusting the relative positions of the input motor 20 and the output motor 30 along the vertical direction and the length direction and the width direction of the test bed body 10, so that the output shaft of the input motor 20 is opposite to the output shaft of the output motor 30, and the transmission 40 is installed between the input motor 20 and the output motor 30.

The longitudinally-arranged transmission test bed further comprises an automatic control system, the automatic control system corresponds to the conversion of hardware, the automatic control system also has the changing capability, and the control system can start different motors according to test contents, load corresponding interfaces and acquire signal parameters. The software interface is provided with several different modes for calling according to the test requirements in advance, and the software interface is provided with a user-defined mode, so that a user can configure the software interface by himself.

In some embodiments, the test of the gasoline engine longitudinal rear drive transmission 40 is performed, the control system enables the input motor 20 and the output motor 30 corresponding to the gasoline engine longitudinal transmission 40, and loads the test interface, parameters and the like, at the same time, the output motor 30 corresponding to the diesel engine longitudinal transmission 40 does not work.

The test bed has a hybrid function, is provided with necessary equipment for hybrid tests such as a direct-current power supply and a power analyzer, integrates control and acquisition functions in software, and has strong adjustment capability, so that the test bed has the capability of testing other objects such as a hub reducer and a P2 type hybrid longitudinal transmission besides a common/hybrid longitudinal transmission. In other embodiments, when the rotation speed of the input motor 20 of the test bed reaches 10000rpm, the P2 motor test can be performed, and at this time, the control system only enables the input motor 20 to load the test interface, parameters, and the like at the same time, and at this time, the two output motors 30 do not work. Therefore, the test bed is based on the design concept of modularization and flexibility, three motor assembly modules are built on the basis of three high-performance motors, the test bed has extremely strong conversion capacity, and various working condition tests of the longitudinally-arranged transmission can be completed in a building block building mode. Meanwhile, other test objects such as the hub speed reducer, the P2 motor and the like can be tested, and the application range is wide.

This application is equipped with two output motor 30 of different characteristics, has expanded the test range, has solved the compatibility problem of two kinds of indulge derailleurs 40 of matching gasoline engine version and diesel engine version, and this test bench can cover the test of all operating modes of indulging the derailleur 40 below 1100 Nm. The reliability of the test bed body 10 is high, two stages of gear boxes are omitted in the system, a transmission system is simplified, the noise is low, and the reliability of the test bed body 10 is improved. Meanwhile, the transmission system is simplified, the rack is convenient to design into a module form, the occupied space is small, the whole axial size is short, the two output motors 30 can axially move, the whole axial distance of the rack can be further reduced, and the method is very critical to occasions with insufficient space of the iron floor. The position of the input motor 20 and the position of the output motor 30 are adjusted in multiple directions through the adjusting device, so that the alignment is accurate, the measuring result is accurate, the independence of each part is strong, the parts are not affected by each other, and the whole test bed cannot stop running due to local problems.

In some embodiments, the adjusting device can adjust the position of the input motor 20 along the vertical direction and the length direction and the width direction of the test bed body 10, and the position of the output motor 30 does not need to be adjusted, and the output shaft of the input motor 20 can be opposite to the position of the output shaft of the output motor 30 only by adjusting the input motor 20. Conversely, the position of the output motor 30 along the vertical direction and the length direction and the width direction of the test bed body 10 can be adjusted by the adjusting device, and the position of the input motor 20 does not need to be adjusted.

The utility model provides a test bench body 10 is equipped with many constant head tanks along its length direction, and on the constant head tank or near it be equipped with a plurality of locating holes for realize the preliminary location of input motor 20 and output motor 30, avoid the great deviation to appear in the position.

In other embodiments, the adjusting device may include a plurality of driving devices, the plurality of driving devices respectively drive the input motor 20 or the output motor 30, and each driving device adjusts the position of the input motor 20 or the output motor 30 along one direction, and the specific embodiment is as follows:

as shown in fig. 4, the first base plate 50 is disposed on the test bed body 10, the first base plate 50 is disposed with a first rack 51 for placing the input motor 20, and the input motor 20 is detachably disposed on the first rack 51 through a bolt, so as to facilitate replacement of the input motor 20. The first stage 51 moves in the width direction of the test stand body 10 with respect to the first base plate 50, and the adjusting means includes first driving means for driving the first stage 51 to move. The first bottom plate 50 is detachable from the test bed body 10, so that the input motor 20 is detachably connected to the test bed body 10.

In some embodiments, the first rack 51 is provided with a first shaft sleeve 52, the first shaft sleeve 52 is fixed on the first rack 51, and the first shaft sleeve 52 is internally provided with a first internal thread. The first driving device comprises a first driving shaft 53 and a first driving piece for driving the first driving shaft 53 to rotate, the first driving piece is arranged on the test bed body 10, a first external thread is arranged on the periphery of the first driving shaft 53, and the first driving shaft 53 is in threaded fit with the first shaft sleeve 52. The first driving member drives the first driving shaft 53 to rotate, so that the first shaft sleeve 52 drives the first rack 51 to move along the length direction of the first driving shaft 53, thereby adjusting the position of the input motor 20 along the width direction of the test bed body 10. Wherein an end portion of the first driving shaft 53 protrudes out of the first stage 51, and the first driving member may be a first hand wheel 54 disposed at the protruding end of the first driving shaft 53. Further optimally, for the convenience of the worker, a worm gear assembly may be provided at the end of the first driving shaft 53, so that the first hand wheel 54 is parallel to the test bed body 10.

In other embodiments, the first driving device may also be an expansion member, a driving end of the expansion member is connected to the first base plate 50, and an expansion end of the expansion member is connected to the first carriage 51, and the expansion of the expansion member drives the first carriage 51 to move. Specifically, the telescopic part can be an electric push rod, an air cylinder or a hydraulic cylinder and the like.

Referring to fig. 2 and 3, the second base plate 60 is disposed on the test bed body 10, the second base plate 60 is provided with a second rack 61 for placing the output motor 30, and the output motor 30 is detachably disposed on the second rack 61 through bolts, so that the output motor 30 can be replaced conveniently. The second stage 61 is moved relative to the second base plate 60 along the lengthwise direction of the test stand body 10, and the adjusting means includes a second driving means for driving the second stage 61 to move. The second bottom plate 60 is detachable from the test bed body 10, so that the output motor 30 is detachably connected to the test bed body 10.

In some embodiments, a second bushing is disposed on the second stage 61, and a second internal thread is disposed inside the second bushing. The second driving device comprises a second driving shaft 62 and a second driving piece for driving the second driving shaft 62 to rotate, the second driving piece is arranged on the test bed body 10 and arranged on the second bottom plate 60, a second external thread is arranged on the periphery of the second driving shaft 62, and the second driving shaft 62 is in threaded fit with the second sleeve. The second driving member drives the second driving shaft 62 to rotate, so that the second shaft sleeve drives the second rack 61 to move along the length direction of the second driving shaft 62, thereby adjusting the position of the input motor 20 along the length direction of the test bed body 10. Wherein the end of the second driving shaft 62 extends out of the second carriage 61, and the second driving member may be a second wheel 63 disposed at the extending end of the second driving shaft 62. Further optimally, for the convenience of operation of workers, a worm and gear assembly can be arranged at the end of the second driving shaft 62, so that the second hand wheel 63 is parallel to the test bed body 10.

In other embodiments, the second driving device may also be an expansion member, a driving end of the expansion member is connected to the second base plate 60, and an expansion end of the expansion member is connected to the second stage 61, so that the expansion of the expansion member drives the second stage 61 to move. Specifically, the telescopic part can be an electric push rod, an air cylinder or a hydraulic cylinder and the like.

Referring to fig. 1 and 2, the second stage 61 is provided with a lifting table 70, and the output motor 30 is disposed on the top of the lifting table 70, that is, the output motor 30 is disposed on the top of the second stage 61 through the lifting table 70. The elevating table 70 is moved in a vertical direction with respect to the second stage 61, and the adjusting means includes a third driving means for driving the elevating table 70 to move. Further preferably, as shown in fig. 3, a plurality of guide posts 72 are disposed on the second frame 61, and a plurality of guide platforms matching the guide posts 72 are disposed on the lifting platform 70, so as to ensure that the lift-adjusting device moves in the vertical direction.

As shown in fig. 3, in some embodiments, the second frame 61 is provided with a lifting rod 71, the lifting rod 71 is disposed in a vertical direction, the third driving device includes a third driving shaft 73 and a third driving member for driving the third driving shaft 73 to rotate, and the third driving shaft 73 is used for driving the lifting rod 71 to extend and retract in the vertical direction. Specifically, a gear may be disposed at an end of the third driving shaft 73, a rack may be disposed at a position of the lifting rod 71 corresponding to the gear, the gear and the rack are engaged with each other, the gear is driven to rotate by the third driving shaft 73, and the lifting rod 71 is driven to move in the vertical direction by the rack.

Preferably, the number of the lifting rods 71 is two, and the two lifting rods 71 are spaced apart along the longitudinal direction of the test bed body 10, so that the third driving shaft 73 is also disposed along the longitudinal direction of the test bed body 10 in the same direction as the second driving shaft 62, and the direction of the driving force of the third driving shaft 73 can be adjusted to avoid the third driving shaft 73 and the second driving shaft 62 from interfering with each other. That is, the third driving member includes a fourth driving shaft 74 for driving the third driving shaft 73 to rotate, the fourth driving shaft 74 is perpendicular to the third driving shaft 73, wherein a first bevel gear is disposed at an end of the fourth driving shaft 74, the third driving shaft 73 can be divided into two sections, and a second bevel gear matched with the first bevel gear is disposed at a free end of each of the two sections of the third driving shaft 73, so that the rotation of the fourth driving shaft 74 drives the two sections of the third driving shaft 73 to rotate. An end of the fourth driving shaft 74 extends out of the second stage 61, and a third hand wheel 75 is provided at the extending end of the fourth driving shaft 74.

In other embodiments, a telescopic member may be disposed in the second rack 61, a driving end of the telescopic member is connected to the second rack 61, a telescopic end of the telescopic member is connected to the lifting platform 70, and the telescopic member is telescopic along the vertical direction, so as to drive the lifting platform 70 to move along the vertical direction, specifically, the telescopic member may be an electric push rod, a hydraulic cylinder, an air cylinder, or the like.

The output shaft of the output motor 30 of the application is in universal connection with the output shaft of the transmission 40, so that certain errors can exist between the output shaft of the transmission 40 and the output shaft of the output motor 30, and convenience in operation is improved.

As shown in fig. 1, the test bed body 10 is provided with a plurality of support frames 80, and the support frames 80 are provided with bearing seats 81 for supporting the output shaft of the output motor 30 and the output shaft of the transmission 40. The output shaft of the output motor 30 passes through the bearing housing 81, thereby increasing the strength of the output shaft of the output motor 30.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a indulge and put derailleur test bench, its characterized in that includes test bench body (10), be equipped with on test bench body (10):

an input motor (20), wherein an output shaft of the input motor (20) is used for being connected with an input end of a speed changer (40);

the test bed comprises two output motors (30), output shafts of the output motors (30) are used for being connected with output ends of a transmission (40), a first working position and a second working position are arranged on a test bed body (10), when the input motor (20) is located at the first working position, the input motor (20) is opposite to one output motor (30) in position, and when the input motor (20) is located at the second working position, the input motor (20) is opposite to the other output motor (30) in position;

the adjusting device is used for adjusting the relative positions of the input motor (20) and the output motor (30) along the vertical direction and the length direction and the width direction of the test bed body (10).

2. The longitudinally arranged transmission test bed according to claim 1, wherein a first base plate (50) is arranged on the test bed body (10), a first rack (51) for placing the input motor (20) is arranged on the first base plate (50), the first rack (51) moves along the width direction of the test bed body (10) relative to the first base plate (50), and the adjusting device comprises a first driving device for driving the first rack (51) to move.

3. The longitudinally arranged transmission test bed as claimed in claim 2, wherein a first shaft sleeve (52) is arranged on the first stand (51), the first driving device comprises a first driving shaft (53) and a first driving member for driving the first driving shaft (53) to rotate, the first driving member is arranged on the test bed body (10), and the first driving shaft (53) is in threaded fit with the first shaft sleeve (52).

4. The longitudinally arranged transmission test bed according to claim 1, wherein a second base plate (60) is arranged on the test bed body (10), a second rack (61) for placing the output motor (30) is arranged on the second base plate (60), the second rack (61) moves relative to the second base plate (60) along the length direction of the test bed body (10), and the adjusting device comprises a second driving device for driving the second rack (61) to move.

5. The longitudinally arranged transmission test bed according to claim 4, wherein a second shaft sleeve is arranged on the second frame (61), the second driving device comprises a second driving shaft (62) and a second driving member for driving the second driving shaft (62) to rotate, the second driving member is arranged on the second base plate (60), and the second driving shaft (62) is in threaded fit with the second shaft sleeve.

6. The longitudinally arranged transmission test bed according to claim 4, wherein a lifting table (70) is arranged on the second stand (61), the output motor (30) is arranged on the top of the lifting table (70), the lifting table (70) moves in a vertical direction relative to the second stand (61), and the adjusting device comprises a third driving device for driving the lifting table (70) to move.

7. The longitudinally arranged transmission test bed according to claim 6, wherein a lifting rod (71) is arranged on the second frame (61), the lifting rod (71) is arranged in the vertical direction, the third driving device comprises a third driving shaft (73) and a third driving member for driving the third driving shaft (73) to rotate, and the third driving shaft (73) is used for driving the lifting rod (71) to move in the vertical direction.

8. The longitudinally arranged transmission test stand according to claim 7, wherein the third driving member comprises a fourth driving shaft (74) for driving the third driving shaft (73) to rotate, and the fourth driving shaft (74) is perpendicular to the third driving shaft (73).

9. The longitudinal transmission test bench according to any one of claims 1 to 8, characterized in that the output shaft of the output motor (30) is connected with the output end of the transmission (40) in a universal manner.

10. The longitudinally arranged transmission test bed according to any one of claims 1 to 8, wherein a plurality of support frames (80) are arranged on the test bed body (10), and a bearing seat (81) for supporting the output shaft of the output motor (30) and the output shaft of the transmission (40) is arranged on each support frame (80).

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