Transmission assembly and assembling method thereof

Abstract

The invention discloses a gearbox assembly and an assembling method thereof, and relates to the technical field of gearbox assemblies. The gearbox assembly comprises a gearbox shell, a driving shaft, an output shaft and a locking device, the gearbox shell defines a containing space, at least part of the driving shaft is contained in the containing space, the driving shaft is in transmission connection with the output shaft, the locking device comprises a locking piece and an adjusting assembly, the locking piece is provided with a matched through hole and is connected with the gearbox shell, and the adjusting assembly is connected with the gearbox shell. The driving shaft is arranged in the matching through hole in a penetrating mode, and the adjusting assembly is matched with the locking piece and can adjust the inner diameter of the matching through hole so that the driving shaft can be connected with the locking piece. Thus, the inner diameter of the locking piece is adjusted through the adjusting assembly, the driving shaft and the locking piece can be tightly connected and relatively fixed, the driving shaft can be fixedly arranged on the gearbox shell, operation is easy, the driving shaft can be effectively fixed conveniently, the test process can be conducted smoothly, and the accuracy of the test result can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission assemblies, and more particularly to a transmission assembly and an assembly method thereof. Background Art

[0002] In the related art, the transmission assembly needs to have sufficient torsional resistance. The static torsion test is a test method to verify the torque impact resistance of the transmission assembly. To conduct this test, the drive shaft needs to be fixed. However, it is difficult for the existing transmission assemblies to effectively fix the drive shaft, resulting in an unsmooth test process and affecting the test results. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. For this purpose, an object of the present invention is to provide a transmission assembly that can effectively complete the static torsion test, is easy to operate, and is conducive to the smooth progress of the test process.

[0004] The present invention further provides an assembly method for a transmission assembly.

[0005] The transmission assembly according to an embodiment of the present invention includes: a transmission housing that defines an accommodation space; a drive shaft and an output shaft, at least a part of the drive shaft is received in the accommodation space, and the drive shaft is in transmission connection with the output shaft; a locking device, the locking device includes: a locking member and an adjustment assembly, the locking member has a mating through hole and is connected to the transmission housing, the drive shaft passes through the mating through hole, and the adjustment assembly cooperates with the locking member and can adjust the inner diameter of the mating through hole so that the drive shaft is connected to the locking member.

[0006] The transmission assembly according to an embodiment of the present invention can tightly connect and relatively fix the drive shaft to the locking member by adjusting the inner diameter of the locking member through the adjustment assembly, so that the drive shaft can be fixed to the transmission housing. The operation is simple, which is convenient for effectively fixing the drive shaft, conducive to the smooth progress of the test process, and can improve the accuracy of the test results.

[0007] According to some embodiments of the present invention, the adjustment assembly includes: two adjustment disks and a connecting member. Both of the two adjustment disks are sleeved on the locking member and are connected to the connecting member, and along the axial direction of the drive shaft, the two adjustment disks are arranged in a row and the distance therebetween is adjustable. The adjustment assembly is configured to adjust the inner diameter of the mating through hole by adjusting the distance between the two adjustment disks.

[0008] According to some embodiments of the present invention, the adjustment assembly also includes: an adjustment ring, which is sleeved on the locking member, and the outer diameter of the adjustment ring gradually increases along the axial direction of the drive shaft and from both ends of the adjustment ring to between the two ends of the adjustment ring to form two guide surfaces, and the two adjustment disks are respectively abutted against the two guide surfaces.

[0009] According to some embodiments of the present invention, the connecting piece has an external thread, the two adjusting disks both have a matching hole, the matching holes of the two adjusting disks correspond to each other and both have an internal thread, the connecting piece is passed through the matching holes of the two adjusting disks and is threadedly connected to the matching holes of the two adjusting disks.

[0010] According to some embodiments of the present invention, the two adjusting disks each have a matching hole, and the matching holes of the two adjusting disks correspond to each other. The connecting piece is passed through the matching holes of the two adjusting disks. The connecting piece has a plurality of first matching portions, and the plurality of first matching portions are arranged along the axial direction of the driving shaft. Each of the matching holes has a second matching portion, and the second matching portion can match with any one of the first matching portions. One of the first matching portion and the second matching portion is configured as a snap-in hole, and the other of the first matching portion and the second matching portion is configured as a snap-in protrusion.

[0011] According to some embodiments of the present invention, the number of the connecting member, the matching holes of one of the adjusting disks, and the matching holes of the other adjusting disk are all multiple and correspond one to one.

[0012] According to some embodiments of the present invention, the locking member includes: a locking shaft and a connecting disk, the locking shaft is connected to the connecting disk, the connecting disk is connected to the gearbox housing, along the radial direction of the drive shaft, the thickness of the locking shaft is smaller than the thickness of the connecting disk, and the adjusting assembly cooperates with the locking shaft.

[0013] According to some embodiments of the present invention, the locking shaft has at least one collapse groove, and along the axial direction of the driving shaft, one end of the collapse groove facing away from the connecting disk is open.

[0014] According to some embodiments of the present invention, the gearbox assembly further includes: a transmission component, wherein the transmission component is transmission-connected between the drive shaft and the output shaft.

[0015] According to an embodiment of the present invention, the assembly method of the gearbox assembly includes: passing the drive shaft through the matching through hole of the locking member; assembling two adjustment disks and an adjustment ring on the locking member; fixing the two adjustment disks by a connecting member; installing the drive shaft into the accommodating space of the gearbox housing, and connecting the locking member to the gearbox housing; installing the output shaft and connecting the output shaft to the drive shaft in driving connection.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0018] Figure 1 is a schematic diagram of a transmission assembly according to an embodiment of the present invention Figure 1 ;

[0019] Figure 2 is a schematic diagram of a transmission assembly according to an embodiment of the present invention Figure 2 (transmission housing omitted);

[0020] Figure 3 is a schematic diagram of a transmission assembly according to an embodiment of the present invention Figure 3 (transmission housing omitted);

[0021] Figure 4 is a schematic diagram of the cooperation between a locking device and a drive shaft according to an embodiment of the present invention;

[0022] Figure 5 is a schematic diagram of a locking device according to an embodiment of the present invention;

[0023] Figure 6 is a schematic diagram of an adjusting assembly according to an embodiment of the present invention;

[0024] Figure 7 is a schematic diagram of the cooperation between a locking member and an adjusting ring according to an embodiment of the present invention;

[0025] Figure 8 is a flowchart of an assembling method of a transmission assembly according to an embodiment of the present invention.

[0026] Reference Signs:

[0027] transmission housing 1; main transmission housing 11; transmission shift housing 12; accommodation space 13;

[0028] locking device 2; locking member 21; mating through hole 211; locking shaft 212; collapse groove 2121; connecting disk 213; adjusting assembly 22; first adjusting disk 221; second adjusting disk 222; connecting member 223; threaded portion 2231; head portion 2232; adjusting ring 224; first guiding surface 2241; second guiding surface 2242;

[0029] drive shaft 3;

[0030] Output shaft 4; left loading half shaft 41; right loading half shaft 42;

[0031] Transmission assembly 5; intermediate shaft 51; input shaft 52; differential 53;

[0032] Mounting bracket 6; mounting bolt 7;

[0033] Cover body 8;

[0034] Transmission assembly 10. Detailed implementation manners

[0035] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0036] Reference will be made below to Figures 1-8 describe the transmission assembly 10 and its assembly method according to an embodiment of the present invention.

[0037] As Figures 1-4 shown, the transmission assembly 10 according to an embodiment of the present invention includes: a transmission housing 1, a drive shaft 3, an output shaft 4, and a locking device 2. The transmission housing 1 defines an accommodation space 13. At least a part of the drive shaft 3 is received in the accommodation space 13. The drive shaft 3 is in transmission connection with the output shaft 4. The locking device 2 includes: a locking member 21 and an adjusting assembly 22. The locking member 21 has a mating through hole 211 and is connected to the transmission housing 1. The drive shaft 3 passes through the mating through hole 211. The adjusting assembly 22 cooperates with the locking member 21 and can adjust the inner diameter of the mating through hole 211 so that the drive shaft 3 is connected to the locking member 21.

[0038] It should be noted that torque can be applied to the output shaft 4 to test the torsional resistance of related transmission components such as the fixed drive shaft 3 and output shaft 4.

[0039] The transmission housing 1 defines an accommodation space 13. At least a part of the drive shaft 3 is received in the accommodation space 13. The locking member 21 has a mating through hole 211. The drive shaft 3 can pass through the mating through hole 211. And the locking member 21 can be directly connected or indirectly connected to the transmission housing 1 so that the drive shaft 3 is fixed to the transmission housing 1. For example, the locking member 21 can be bolt-connected or snap-connected to the transmission housing 1 so that the drive shaft 3 is fixed to the transmission housing 1. The drive shaft 3 is in transmission connection with the output shaft 4. Torque can be applied to the output shaft 4 to apply torque to the drive shaft 3 through the output shaft 4 to test the torsional resistance of the transmission assembly 10.

[0040] The adjusting assembly 22 cooperates with the locking member 21 and can adjust the inner diameter of the mating through hole 211. The adjusting assembly 22 can lock the locking member 21 to reduce the inner diameter of the mating through hole 211, so that the drive shaft 3 is fixedly connected to the locking member 21. And the adjusting assembly 22 can loosen the locking member 21 to facilitate the disassembly of the drive shaft 3 from the locking member 21, so as to facilitate the disassembly of corresponding components as needed after the test. By locking the drive shaft 3 with the adjusting assembly 22 and the locking member 21, the drive shaft 3, the output shaft 4, and the transmission housing 1 are all relatively stationary, and a torque is applied to the output shaft 4 to test the torsional resistance of the output shaft 4, the drive shaft 3, and other transmission components.

[0041] As some embodiments of the present invention, the adjusting assembly 22 can be configured as a locking ring. The locking ring includes a ring body and a locking bolt. The ring body can be configured as a "Ω"-shaped member. The ring body has an opening, and through holes can be configured at both ends of the opening. The locking bolt can pass through the two through holes to lock the locking ring to reduce the distance between the two through holes, thereby reducing the inner diameter of the ring body. When the ring body is sleeved on the locking member 21, the inner diameter of the ring body can be reduced by the locking bolt, thereby causing the ring body to exert a pressure on the locking member 21 to reduce the inner diameter of the locking member 21 and increase the pressure between the inner wall of the mating through hole 211 and the circumferential wall of the drive shaft 3. Furthermore, the locking member 21 and the drive shaft 3 can be stably and reliably fixedly connected, so that the locking member 21 and the drive shaft 3 are relatively stationary for performing a static torsion test.

[0042] As some other embodiments of the present invention, as Figures 4-7 shown, the adjusting assembly 22 can include a first adjusting disc 221, a second adjusting disc 222, a connecting member 223, and an adjusting ring 224. The adjusting ring 224 can be configured as an annular structure. The adjusting ring 224 can be sleeved on the locking member 21. Along the axis direction of the drive shaft 3, the adjusting ring 224 can be installed between the first adjusting disc 221 and the second adjusting disc 222. Along the axis direction of the drive shaft 3 and from both ends of the adjusting ring 224 to between both ends of the adjusting ring 224, the outer diameter of the adjusting ring 224 gradually increases to form two guiding surfaces, so that the radial cross-section of the adjusting ring 224 is configured as a conical (or triangular-like, trapezoidal-like) structure. Specifically, the two guiding surfaces can be a first guiding surface 2241 and a second guiding surface 2242. The first guiding surface 2241 can be in contact with the first adjusting disc 221, and the second guiding surface 2242 can be in contact with the second adjusting disc 222. During the process of reducing the distance between the two adjusting discs along the axis direction of the drive shaft 3 through the connecting member 223, the first adjusting disc 221 moves along Figure 7 the A direction shown and is always in contact with the first guiding surface 2241, and the second adjusting disc 222 moves along Figure 7It moves in the B direction as shown and always abuts against the second guiding surface 2242. As the distance between the first adjusting disc 221 and the second adjusting disc 222 gradually decreases, under the action of the first guiding surface 2241 and the second guiding surface 2242, the first adjusting disc 221 and the second adjusting disc 222 jointly apply a force to the adjusting ring 224 in the axial direction of the driving shaft 3 to reduce the inner diameter of the adjusting ring 224. The adjusting ring 224 transmits pressure to the locking member 21 to reduce the inner diameter of the fitting through hole 211, so that the locking member 21 abuts more closely against the driving shaft 3. Under the action of the static friction force between the locking member 21 and the driving shaft 3, the locking member 21 and the driving shaft 3 can remain relatively stationary, so that the transmission assembly 10 can complete the static torque test. The adjusting ring 224 has a simple structure, ingenious design, is easy to manufacture, has a good effect on adjusting the inner diameter of the fitting through hole 211, and can improve the efficiency and accuracy of the static torque test.

[0043] In the above embodiment, by adjusting the inner diameter of the locking member 21 through the adjusting assembly 22, the driving shaft 3 can be tightly connected and relatively fixed to the locking member 21, so that the driving shaft 3 can be fixed to the transmission housing 1. The operation is simple, it is convenient to effectively fix the driving shaft 3, which is beneficial to the smooth progress of the test process, and can improve the accuracy of the test result.

[0044] As some embodiments of the present invention, as Figure 1 shown, the transmission housing 1 may include a transmission main housing 11 and a transmission change housing 12. The transmission main housing 11 and the transmission change housing 12 are detachably connected. When installing the driving shaft 3 into the accommodation space 13, the driving shaft 3 can be first installed in the transmission main housing 11, and then the transmission main housing 11 is connected to the transmission change housing 12. Such a setting has a reasonable structure and is convenient for assembly. As some embodiments of the present invention, the transmission main housing 11 and the transmission change housing 12 can be connected by a plurality of assembly bolts M8x35 bolts.

[0045] As some embodiments of the present invention, as Figures 1-3 shown, the transmission assembly 10 may include a plurality of mounting brackets 6. The plurality of mounting brackets 6 can be respectively bolt-connected to a plurality of positions of the transmission main housing 11 through mounting bolts 7. The mounting bolts 7 can be fixing bolts M12x40.

[0046] In some embodiments of the present invention, as Figures 2-6 shown, the adjusting assembly 22 includes: two adjusting discs and a connecting member 223. Both of the two adjusting discs are sleeved on the locking member 21 and are both connected to the connecting member 223. And along the axial direction of the driving shaft 3, the two adjusting discs are arranged with an adjustable distance therebetween. The adjusting assembly 22 is configured to adjust the inner diameter of the fitting through hole 211 by adjusting the distance between the two adjusting discs.

[0047] Among them, the two adjusting disks may include a first adjusting disk 221 and a second adjusting disk 222. Both the first adjusting disk 221 and the second adjusting disk 222 may be sleeved on the locking member 21 and arranged at intervals along the axis direction of the driving shaft 3. Both the first adjusting disk 221 and the second adjusting disk 222 may be connected to the connecting member 223. The connecting member 223 may be used to adjust the distance between the two adjusting disks, and further adjust the inner diameter of the fitting through-hole 211. Specifically, by the connecting member 223, the distance between the two adjusting disks can be reduced, so that the adjusting assembly 22 can lock the locking member 21 to reduce the inner diameter of the fitting through-hole 211, so that the driving shaft 3 is tightly connected to the locking member 21, so that the driving shaft 3 and the locking member 21 are relatively fixed. When the driving shaft 3 and the locking member 21 are locked, the distance between the two adjusting disks can be increased to release the locking member 21, so as to facilitate the disassembly of the driving shaft 3 from the locking member 21, so as to facilitate the disassembly of the corresponding components as needed after the test.

[0048] In the above embodiment, by providing two adjusting disks and the connecting member 223, the driving shaft 3 can be locked, so that the driving shaft 3, the output shaft 4, and the transmission housing 1 are all relatively stationary, and a torque is applied to the output shaft 4, and the torsional resistance of the output shaft 4, the driving shaft 3, and other transmission components can be tested. The operation is simple and the locking effect is good, which is beneficial to improving the test efficiency and accuracy.

[0049] In some embodiments of the present invention, as Figure 4 、 Figure 5 and Figure 7 shown, the adjusting assembly 22 further includes: an adjusting ring 224. The adjusting ring 224 is sleeved on the locking member 21. Along the axis direction of the driving shaft 3 and from both ends of the adjusting ring 224 to between both ends of the adjusting ring 224, the outer diameter of the adjusting ring 224 gradually increases to form two guiding surfaces, and the two adjusting disks are respectively abutted against the two guiding surfaces.

[0050] Among them, the adjusting ring 224 may be configured as an annular structure. The adjusting ring 224 may be sleeved on the locking member 21. Along the axis direction of the driving shaft 3, the adjusting ring 224 may be installed between the first adjusting disk 221 and the second adjusting disk 222. Along the axis direction of the driving shaft 3 and from both ends of the adjusting ring 224 to between both ends of the adjusting ring 224, the outer diameter of the adjusting ring 224 gradually increases to form two guiding surfaces, so that the radial cross-section of the adjusting ring 224 is configured as a conical (or similar triangular, similar trapezoidal) structure. Specifically, the two guiding surfaces may be a first guiding surface 2241 and a second guiding surface 2242. The first guiding surface 2241 may be abutted against the first adjusting disk 221, and the second guiding surface 2242 may be abutted against the second adjusting disk 222.

[0051] During the process of reducing the distance between the two adjusting disks along the axis direction of the driving shaft 3 by the connecting member 223, the first adjusting disk 221 is along Figure 7It moves in the A direction shown and always abuts against the first guiding surface 2241. The A direction is perpendicular to the normal direction of the first guiding surface 2241. The second adjusting disk 222 moves in the Figure 7 B direction shown and always abuts against the second guiding surface 2242. The B direction is perpendicular to the normal direction of the second guiding surface 2242. As the distance between the first adjusting disk 221 and the second adjusting disk 222 gradually decreases, under the action of the first guiding surface 2241 and the second guiding surface 2242, the first adjusting disk 221 and the second adjusting disk 222 jointly apply a force to the adjusting ring 224 in the axial direction of the driving shaft 3 to reduce the inner diameter of the adjusting ring 224. The adjusting ring 224 transmits pressure to the locking member 21 to reduce the inner diameter of the mating through hole 211, so that the locking member 21 abuts more closely against the driving shaft 3. Under the action of the static friction force between the locking member 21 and the driving shaft 3, the locking member 21 and the driving shaft 3 can remain relatively stationary, so that the transmission assembly 10 can complete the static torsion test. The adjusting ring 224 has a simple structure, ingenious design, is easy to manufacture, has a good effect on adjusting the inner diameter of the mating through hole 211, and can improve the efficiency and accuracy of the static torsion test.

[0052] In some embodiments of the present invention, the adjusting ring 224 and the locking member 21 can be integrally formed, so that the relative positions of the adjusting ring 224 and the locking member 21 are fixed. When the distance between the two adjusting disks along the axial direction of the driving shaft 3 is reduced through the connecting member 223, the inner diameter of the mating through hole 211 can be better reduced, the adjusting effect is good, and the structure is more stable. In some embodiments of the present invention, the adjusting ring 224 and the locking member 21 can be separate parts. The adjusting ring 224 and the locking member 21 can be connected by snap connection, interference fit connection or bolt connection. The adjusting ring 224 may be worn during multiple uses. By making the adjusting ring 224 and the locking member 21 detachably connected, the adjusting ring 224 can be replaced as needed to better achieve the effect of effectively adjusting the inner diameter of the mating through hole 211 of the locking member 21 through the adjusting assembly 22, so that the test process is more accurate and efficient. Moreover, by making the adjusting ring 224 and the locking member 21 separate parts, it is convenient to assemble the adjusting assembly 22 and the locking member 21, and the assembly efficiency can be improved.

[0053] In some embodiments of the present invention, the connecting member 223 has an external thread, both of the two adjusting disks have mating holes, the mating holes of the two adjusting disks correspond and both have internal threads, and the connecting member 223 passes through the mating holes of the two adjusting disks and is screwed with the mating holes of the two adjusting disks.

[0054] Among them, the connecting member 223 can be constructed as a connecting bolt, the connecting member 223 can have an external thread, the first adjusting disk 221 and the second adjusting disk 222 can both have matching holes, the matching holes of the first adjusting disk 221 and the matching holes of the second adjusting disk 222 are directly opposite to each other along the axial direction of the driving shaft 3 and can both have internal threads, the connecting member 223 can be penetrated into the matching holes of the corresponding first adjusting disk 221 and the corresponding second adjusting disk 222, and are threadedly connected with the matching holes of the corresponding first adjusting disk 221 and the corresponding second adjusting disk 222, and the distance between the first adjusting disk 221 and the second adjusting disk 222 can be adjusted by rotating the connecting member 223, thereby achieving the effect of adjusting the inner diameter of the matching through hole 211 of the locking member 21.

[0055] As some embodiments of the present invention, Figures 4-6 As shown, the connecting member 223 includes a threaded portion 2231 and a head portion 2232. The threaded portion 2231 of the connecting member 223 may have an external thread. When the connecting member 223 is inserted into the matching holes of the first adjusting disk 221 and the second adjusting disk 222, the head portion 2232 of the connecting member 223 abuts against the side of the first adjusting disk 221 that is away from the second adjusting disk 222. When the distance between the first adjusting disk 221 and the second adjusting disk 222 is reduced by rotating the connecting member 223, the head portion 2232 may push the first adjusting disk 221 to move toward the direction of the second adjusting disk 222, so as to achieve the effect of reducing the distance between the first adjusting disk 221 and the second adjusting disk 222, and the adjusting assembly 22, the locking member 21 and the driving shaft 3 may remain relatively stable, so as to facilitate the static torsion test.

[0056] In some embodiments of the present invention, both adjusting disks have matching holes, and the matching holes of the two adjusting disks correspond to each other. The connecting member 223 is passed through the matching holes of the two adjusting disks. The connecting member 223 has multiple first matching parts, and the multiple first matching parts are arranged along the axial direction of the driving shaft 3. Each matching hole has a second matching part, and the second matching part can match with any one of the first matching parts. One of the first matching parts and the second matching parts is configured as a snap-in hole, and the other of the first matching parts and the second matching parts is configured as a snap-in protrusion.

[0057] Among them, both the first adjusting disc 221 and the second adjusting disc 222 can have mating holes. The mating holes of the first adjusting disc 221 and the mating holes of the second adjusting disc 222 are correspondingly arranged. The connecting member 223 can pass through the mating holes of the two adjusting discs. The connecting member 223 can have a plurality of first mating portions, and the plurality of first mating portions are arranged at intervals along the axis direction of the driving shaft 3. Each mating hole has a second mating portion, and the second mating portion can cooperate with any one of the first mating portions so that the connecting member 223 is connected to the mating hole in a mating manner. One of the first mating portion and the second mating portion is configured as a clamping hole, and the other of the first mating portion and the second mating portion is configured as a clamping protrusion. The clamping hole and the clamping protrusion can be clamped and matched so that the connecting member 223 is clamped and connected to the mating hole. By setting the clamping and matching of the connecting member 223 and the mating hole, the distance between the first adjusting disc 221 and the second adjusting disc 222 can be adjusted to achieve the effect of adjusting the inner diameter of the mating through hole 211 of the locking member 21 through the adjusting assembly 22.

[0058] In some embodiments of the present invention, as Figures 4-6 shown, the number of the connecting members 223, the mating holes of one of the adjusting discs, and the mating holes of the other adjusting disc are all multiple and correspond one by one.

[0059] Among them, both the first adjusting disc 221 and the second adjusting disc 222 can have a plurality of mating holes. The number of the mating holes of the first adjusting disc 221 and the second adjusting disc 222 is the same and corresponds one by one. The number of the connecting members 223 is the same as the number of the mating holes of the first adjusting disc 221 and corresponds one by one. Each connecting member 223 can pass through the mating hole of the corresponding first adjusting disc 221 and the mating hole of the corresponding second adjusting disc 222 so that the first adjusting disc 221 and the second adjusting disc 222 are fixedly connected. By providing a plurality of connecting members 223 and a plurality of mating holes, the overall structural strength of the adjusting assembly 22 can be enhanced, so that the adjusting assembly 22 can withstand a large torque, reduce the risk of affecting the test results due to the structural strength problem of the adjusting assembly 22, and improve the reliability of the test and the accuracy of the test results.

[0060] In some embodiments of the present invention, as Figure 5 and Figure 7 shown, the locking member 21 includes: a locking shaft 212 and a connecting disc 213. The locking shaft 212 is connected to the connecting disc 213, and the connecting disc 213 is connected to the transmission housing 1. Along the radial direction of the driving shaft 3, the thickness of the locking shaft 212 is less than the thickness of the connecting disc 213, and the adjusting assembly 22 cooperates with the locking shaft 212.

[0061] Among them, the locking shaft 212 can be configured as a hollow shaft, and the adjusting assembly 22 is sleeved on the locking shaft 212. Specifically, the first adjusting disk 221, the adjusting ring 224, and the second adjusting disk 222 can all be sleeved on the locking shaft 212. The connecting disk 213 can be configured as a disk-shaped structure. The locking shaft 212 can be fixedly connected to the connecting disk 213, and the connecting disk 213 is fixedly connected to the transmission housing 1, so that the locking member 21 is fixedly arranged on the transmission housing 1.

[0062] Along the radial direction of the drive shaft 3, the thickness of the locking shaft 212 is less than that of the connecting disk 213. Such a setting can make the radial dimension of the locking shaft 212 smaller, facilitating deformation under the action of the adjusting assembly 22 to reduce the aperture of the mating through hole 211, and can make the radial dimension of the connecting disk 213 larger, making the structural strength of the connecting disk 213 larger and having more fixing points, facilitating fixing the locking member 21 to the transmission housing 1 through the connecting disk 213 to improve the connection stability between the locking member 21 and the transmission housing 1.

[0063] In some embodiments of the present invention, the locking shaft 212 and the connecting disk 213 can be integrally formed. Such a setting can reduce the number of parts and is beneficial to improving the connection strength between the locking shaft 212 and the connecting disk 213. In some other embodiments of the present invention, the locking shaft 212 and the connecting disk 213 can be separate parts, and the locking shaft 212 and the connecting disk 213 can be connected by welding or bolting, etc.

[0064] In some embodiments of the present invention, as Figures 1-3 shown, the connecting disk 213 can have a plurality of first fixing holes. The plurality of first fixing holes can be arranged along the circumferential direction of the connecting disk 213. The first fixing holes of the plurality of connecting disks 213 can all penetrate the connecting disk 213 along the axial direction of the drive shaft 3. The transmission assembly 10 can further include: a cover body 8. The cover body 8 can be arranged at the open end of the transmission housing 1 and fixedly connected to the transmission housing 1 to cover the open end of the transmission housing 1. The cover body 8 has a plurality of second fixing holes corresponding to and facing the first fixing holes one by one. The first fixing holes and the second fixing holes can be fixedly connected by bolts to fix the locking member 21 to the transmission housing 1. In some embodiments of the present invention, the bolts can be mating bolts M8x35.

[0065] In some embodiments of the present invention, the locking member 21 can be configured as a structure similar to a flange.

[0066] In some embodiments of the present invention, as Figure 5 and Figure 7 shown, the locking shaft 212 has at least one collapse groove 2121. Along the axial direction of the drive shaft 3, one end of the collapse groove 2121 away from the connecting disk 213 is open.

[0067] The locking shaft 212 may have at least one collapse groove 2121, and the number of collapse grooves 2121 may be one, two, three, etc. Along the axial direction of the drive shaft 3, the collapse groove 2121 is open at one end away from the connecting plate 213, and along the radial direction of the drive shaft 3, the collapse groove 2121 penetrates the locking shaft 212. In the process of locking the locking shaft 212 by the adjusting component 22, the width dimension of the collapse groove 2121 along the circumferential direction of the locking shaft 212 gradually decreases, so that the aperture of the matching through hole 211 is reduced, so that the drive shaft 3 is matched and connected with the locking member 21. Such a setting facilitates the elastic deformation of the locking shaft 212 under the action of the adjusting component 22, so that the drive shaft 3 can be fixed to the gearbox housing 1, the operation is simple, and the drive shaft 3 can be effectively fixed, which is conducive to the smooth progress of the test process, and is conducive to strengthening the relative static effect of the locking member 21 and the drive shaft 3, so that the static torsion test can be carried out more smoothly.

[0068] In some embodiments of the present invention, Figures 1-4 As shown, the gearbox assembly 10 further includes: a transmission component 5 , which is transmission-connected between the drive shaft 3 and the output shaft 4 .

[0069] As some embodiments of the present invention, the output shaft 4 may include a left loading half shaft 41 and a right loading half shaft 42, and the transmission assembly 5 may include: a differential 53, an intermediate shaft 51 and an input shaft 52. The transmission assembly 5 can be connected between the drive shaft 3 and the output shaft 4. Specifically, the differential 53 can be connected to both the left loading half shaft 41 and the right loading half shaft 42 at the same time, and the differential 53 can be connected to the intermediate shaft 51, the intermediate shaft 51 can be connected to the input shaft 52, and the input shaft 52 can be coaxial with the drive shaft 3 and connected to the drive shaft 3 through a coupling, a spline, etc.

[0070] When performing a static torsion test, the left half-shaft 41 and the right half-shaft 42 can be loaded with force at the same time to transmit torque to the drive shaft 3 through the differential 53, the intermediate shaft 51, and the input shaft 52 to perform a static torsion test to test whether the torque-bearing capacity of the transmission assembly 5, the drive shaft 3, and the output shaft 4 meets the requirements.

[0071] Figure 8 1 is a flow chart of an assembly method of a gearbox assembly according to an embodiment of the present invention. The assembly method of the gearbox assembly includes:

[0072] S1, insert the drive shaft into the matching through hole of the locking member. As some embodiments of the present invention, the distance between the end surface of the connecting disk facing away from the locking shaft and the end of the drive shaft facing away from the output shaft is H, and H is a parameter verified by multiple processes.

[0073] S2. Assemble both adjusting disks and the adjusting ring onto the locking member. Both adjusting disks and the adjusting ring are sleeved on the locking member, and the adjusting ring is installed between the first adjusting disk and the second adjusting disk.

[0074] S3. Fix both adjusting disks through connecting members. Insert multiple connecting members sequentially through the mating holes of the corresponding first adjusting disk and the second adjusting disk to fixedly connect the two adjusting disks. And adjust the distance between the two adjusting disks through multiple connecting members so that the locking member is fixedly connected to the drive shaft stably and reliably.

[0075] S4. Install the drive shaft into the accommodating space of the transmission housing and connect the locking member to the transmission housing. Install the drive shaft into the accommodating space, align the bolt holes on the cover body with the corresponding bolt holes of the locking member, and connect them through bolts to connect the locking member to the transmission housing so that the drive shaft and the transmission housing are relatively fixed.

[0076] S5. Install the output shaft and make the output shaft be in transmission connection with the drive shaft. Install the output shaft, the intermediate shaft, and the input shaft into the accommodating space in sequence. The input shaft is in spline connection with the transmission shaft. Then, connect the main transmission housing and the transmission variable housing into one body. Install multiple mounting brackets on the main transmission housing and connect them through bolts. Then install the left loading half shaft and the right loading half shaft. Torque can be loaded on the drive shaft through the left loading half shaft and the right loading half shaft to test the torsional resistance of the output shaft, the drive shaft, and the intermediate transmission components. Thus, through the assembly method of the transmission assembly of the present invention, the transmission assembly can be assembled easily and quickly, which is beneficial to the smooth progress of the test process.

[0077] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0078] In the description of the present invention, the "first feature" and the "second feature" may include one or more of such features.

[0079] In the description of the present invention, the meaning of "a plurality of" is two or more.

[0080] In the description of the present invention, a first feature being "above" or "below" a second feature may include direct contact between the first and second features, or may include contact between the first and second features not being direct but through additional features therebetween.

[0081] In the description of the present invention, a first feature being "above", "over" or "on top of" a second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature.

[0082] In the description of this specification, descriptions with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0083] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A gearbox assembly (10), characterized in that: include: A gearbox housing (1), wherein the gearbox housing (1) defines a receiving space (13); A drive shaft (3) and an output shaft (4), wherein at least a portion of the drive shaft (3) is accommodated in the accommodation space (13), and the drive shaft (3) is transmission-connected to the output shaft (4); A locking device (2), the locking device (2) comprising: a locking member (21) and an adjusting assembly (22), the locking member (21) having a matching through hole (211) and connected to the gearbox housing (1), the drive shaft (3) passing through the matching through hole (211), the adjusting assembly (22) matching with the locking member (21) and capable of adjusting the inner diameter of the matching through hole (211) so that the drive shaft (3) is connected to the locking member (21).

2. The gearbox assembly (10) according to claim 1, characterized in that: The adjustment assembly (22) comprises: two adjustment disks and a connecting piece (223); the two adjustment disks are both sleeved on the locking piece (21) and connected to the connecting piece (223); and along the axial direction of the drive shaft (3), the two adjustment disks are arranged and the spacing between them is adjustable; the adjustment assembly (22) is constructed to adjust the inner diameter of the matching through hole (211) by adjusting the spacing between the two adjustment disks.

3. The gearbox assembly (10) according to claim 2, characterized in that: The adjustment assembly (22) further comprises: an adjustment ring (224), the adjustment ring (224) being sleeved on the locking member (21), and the outer diameter of the adjustment ring (224) gradually increases along the axial direction of the drive shaft (3) and from the two ends of the adjustment ring (224) to between the two ends of the adjustment ring (224) to form two guide surfaces, and the two adjustment disks are respectively in contact with the two guide surfaces.

4. The gearbox assembly (10) according to claim 2, characterized in that: The connecting piece (223) has an external thread, and the two adjusting disks both have matching holes, the matching holes of the two adjusting disks correspond to each other and both have internal threads, and the connecting piece (223) is inserted through the matching holes of the two adjusting disks and is threadedly connected to the matching holes of the two adjusting disks.

5. The gearbox assembly (10) according to claim 2, characterized in that: The two adjustment disks both have matching holes, and the matching holes of the two adjustment disks correspond to each other. The connecting piece (223) is inserted into the matching holes of the two adjustment disks. The connecting piece (223) has a plurality of first matching parts, and the plurality of first matching parts are arranged along the axial direction of the driving shaft (3). Each of the matching holes has a second matching part, and the second matching part can match with any one of the first matching parts. One of the first matching part and the second matching part is configured as a snap-in hole, and the other of the first matching part and the second matching part is configured as a snap-in protrusion.

6. The gearbox assembly (10) according to claim 4 or 5, characterized in that: The connecting piece (223), the matching holes of one of the adjusting disks, and the matching holes of the other adjusting disk are all multiple in number and correspond one to one.

7. The gearbox assembly (10) according to claim 1, characterized in that: The locking member (21) comprises: a locking shaft (212) and a connecting disk (213); the locking shaft (212) is connected to the connecting disk (213); the connecting disk (213) is connected to the gearbox housing (1); along the radial direction of the drive shaft (3), the thickness of the locking shaft (212) is smaller than the thickness of the connecting disk (213); and the adjusting component (22) cooperates with the locking shaft (212).

8. The gearbox assembly (10) according to claim 7, characterized in that: The locking shaft (212) has at least one collapse groove (2121), and along the axial direction of the driving shaft (3), the collapse groove (2121) is open at one end away from the connecting disk (213).

9. The gearbox assembly (10) according to claim 1, characterized in that: Also includes: A transmission assembly (5), wherein the transmission assembly (5) is transmission-connected between the drive shaft (3) and the output shaft (4).

10. A method for assembling a gearbox assembly, characterized in that: include: Passing the drive shaft through the matching through hole of the locking member; Assembling the two adjusting disks and the adjusting ring on the locking member; Fix the two adjusting disks via a connecting piece; Installing the drive shaft into the receiving space of the gearbox housing, and connecting the locking member to the gearbox housing; An output shaft is installed and drivingly connected with the drive shaft.

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