CN211519513U - Buffering shaft coupling, gear box transmission structure and gear box - Google Patents

Abstract

The utility model relates to a gear drive technical field especially relates to a buffering shaft coupling, gear box transmission structure and gear box. This buffering coupling includes coupling body and buffer block, and the circumference of coupling body is inlayed respectively and is equipped with a plurality of buffer blocks that the interval set up, and the coupling body is rotating the in-process, and each buffer block is used for providing the elastic compensation to the relative displacement that the coupling body upwards produced in circumference. The buffer coupling utilizes the buffer block to provide displacement compensation and buffer action in the circumferential direction of rotation, so that the output coupling assembly provided with the buffer coupling can compensate the relative displacement change in the circumferential direction of rotation possibly generated inside the transmission structure of the gear box and between the transmission structure and wheels in the transmission process, and the transmission structure and the gear box have displacement compensation capacity.

Description

Buffering shaft coupling, gear box transmission structure and gear box

Technical Field

The utility model relates to a gear drive technical field especially relates to a buffering shaft coupling, gear box transmission structure and gear box.

Background

The low-floor rail vehicle is a rail traffic vehicle with the floor surface and the height from the rail surface being 350mm or less, the vehicle has very low entrance height, is very convenient to get on and off, and can save a platform. Compared with the subway and the common light rail, the low-floor rail vehicle has lower cost in capital construction, has the advantages of ultralow noise and high environmental protection, has strong adaptability to plain landforms, and can pass through urban centers, residential areas and industrial parks. In order to realize 100% low floor height, the arrangement form and requirements of a bogie, a motor and a gear box are different from those of a traditional urban rail vehicle, the traditional transmission mode that the gear box is installed on an axle cannot be adopted, and the transmission is realized by connecting the gear box and the motor and then longitudinally arranging the gear box and the motor outside wheels on two sides of the bogie. The input shaft of the gear box is vertical to the wheel shaft so as to smoothly transmit the power of the motor to the wheels.

However, in the existing gearbox transmission structure, because the installation position of the gearbox is located outside the wheels and is limited by the skirting board of the vehicle, the axial space of the gearbox is compact, and the gearbox and the bogie are fixed by a high-rigidity suspension device, in the transmission process, relative displacement change easily exists between the gearbox transmission structure and the wheels, and the relative displacement change easily causes the problem that the vehicle moves in the driving process, and the like, so that the gearbox transmission structure is easily an unstable factor in the driving process of the vehicle.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The embodiment of the utility model provides a buffering shaft coupling, gear box transmission structure and gear box have displacement compensation ability for in solving the transmission process that faces among the prior art, there is the defect that relative displacement changes easily between gear box transmission and the wheel.

(II) technical scheme

In order to solve the technical problem, the utility model provides a buffering shaft coupling, including shaft coupling body and buffer block, the week of shaft coupling body is gone up to inlay respectively and is equipped with a plurality of buffer blocks that are the interval setting, the shaft coupling body is rotating the in-process, each the buffer block is used for rightly the relative displacement that the shaft coupling body produced in week provides the elastic compensation.

In some embodiments, a plurality of fixing ribs are arranged on the circumference of the coupling body, and the buffer block is embedded between adjacent fixing ribs.

In some embodiments, the cushion block includes a plurality of elastic cushioning layers and a bonding layer respectively connected between the elastic cushioning layers.

In some embodiments, the coupling body is a first coupling body, the first coupling body includes a first mounting plate and a second mounting plate, a center of the first mounting plate is sleeved in a shaft hole of the second mounting plate, a plurality of fixing ribs are distributed on the circumference of the second mounting plate, the buffer blocks are embedded between adjacent fixing ribs, and each buffer block is fixedly connected to the circumference of the first mounting plate.

In some embodiments, the coupling body is a second coupling body, the second coupling body includes a third mounting plate and a plurality of external fasteners, and a plurality of external fasteners are distributed on the circumference of one end surface of the third mounting plate; a plurality of fixing ribs are distributed on the third mounting disc in the circumferential direction, and the buffer blocks are embedded between the adjacent fixing ribs.

The utility model also provides a gear box transmission structure, including input coupling assembly, driving gear assembly, driven gear assembly and output coupling assembly, input coupling assembly with the driving gear assembly is connected, the meshing between driving gear assembly and the driven gear assembly, and the axial of driving gear assembly is perpendicular with the axial of driven gear assembly; the output coupling assembly comprises a connecting cylinder and the buffering coupling, two ends of the connecting cylinder are connected to the wheel and the driven gear assembly through the buffering coupling respectively, the connecting cylinder can penetrate through the shaft hole of the driven gear assembly along the axial direction, and the driven gear assembly drives the connecting cylinder and the wheel to rotate through rotation.

In some embodiments, the cushion coupling includes a first coupling body connected between the connector barrel and the driven gear assembly and a second coupling body connected between the wheel and the connector barrel.

In some embodiments, the connecting cylinder is in a horn shape, a first end of the connecting cylinder is fixedly connected with the driven gear assembly through the first coupling body, a second end of the connecting cylinder is fixedly connected with the wheel through the second coupling body, and the caliber of the first end is smaller than that of the second end.

In some embodiments, the driven gear assembly comprises a hollow shaft, a driven gear, an output bearing and an output bearing seat, one end of the hollow shaft is connected with the driven gear, the other end of the hollow shaft is fixedly connected with the output coupling assembly, and the driven gear is connected to the output bearing seat through the output bearing;

the driving gear assembly comprises a driving gear shaft, an input bearing and an input bearing seat, the driving gear shaft is installed in the input bearing seat through a plurality of input bearings and is perpendicular to the hollow shaft, a bevel gear tooth surface structure meshed with the driven gear is arranged at one end of the driving gear shaft, and the other end of the driving gear shaft is connected with the input coupling assembly.

The utility model also provides a gear box, include as above gear box transmission structure.

(III) advantageous effects

The above technical scheme of the utility model following beneficial effect has: the utility model discloses a buffering shaft coupling includes shaft coupling body and buffer block, and the circumference of shaft coupling body inlays respectively and is equipped with a plurality of buffer blocks that are the interval and set up, and the shaft coupling body is rotating the in-process, and each buffer block is used for providing the elastic compensation to the relative displacement that shaft coupling body produced in week. The buffer coupling utilizes the buffer block to provide displacement compensation and buffer action in the circumferential direction of rotation, the buffer action can respectively increase the displacement compensation capacity in the circumferential direction between the output coupling assembly and the driven gear assembly and between the output coupling assembly and the wheels, and the relative displacement change in the circumferential direction of rotation possibly generated in the transmission structure of the gear box and between the transmission structure and the wheels in the transmission process is compensated, so that the transmission structure and the gear box have the displacement compensation capacity; the transmission structure and the gear box also have the advantages of compact structure, simple structure, less axial space requirement, easy operation and maintenance and convenient disassembly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a transmission structure of a gear box according to an embodiment of the present invention;

fig. 2 is a top view of a transmission structure of a gear box according to an embodiment of the present invention;

fig. 3 is a top cross-sectional view of a gearbox drive arrangement according to an embodiment of the present invention;

FIG. 4 is an assembly view of an output coupling assembly according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a first coupling body in accordance with an embodiment of the present invention;

fig. 6 is a schematic structural view of a first coupling body according to an embodiment of the present invention;

fig. 7 is a front sectional view of a transmission structure of a gear box according to an embodiment of the present invention.

Reference numerals: 1. an upper box body; 2. an observation port cover; 3. a respirator; 4. a bolt; 5. oil is filled into the screw plug; 6. an oil level window; 7. an oil drain plug screw; 8. a lower box body; 9. a wheel; 10. a wheel connecting end; 11. a coupling observation hole; 12. an output coupling assembly; 13. a driven gear assembly; 14. a driving gear assembly; 15. an input coupling assembly; 16. lubricating oil;

1-1, connecting an interface with a motor; 1-2, connecting an interface of a bogie;

12-1, a first coupling body; 12-2, connecting the cylinder; 12-3, a second coupling body; 12-4, external fasteners; 12-5, a first mounting plate; 12-6, a second mounting plate; 12-7, a buffer block; 12-8, fixing ribs;

13-1, a hollow shaft; 13-2, a third bearing; 13-3, a driven gear; 13-4, a fourth bearing; 13-5, an output shaft bearing seat; 13-6, sealing an end cover; 13-7, a sealing ring;

14-1, a driving gear shaft; 14-2, a first bearing; 14-3, spacer rings; 14-4, a second bearing; 14-5, inputting a bearing seat; 14-6, a sealing ring; 14-7, shaft end pressing plates; 14-8, an adjusting ring; 14-9, sealing the end cover; 14-10, lubricating oil enters an oil groove; 14-11 parts of lubricating oil return oil channel.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, the meaning of "plurality" and "a number" means two or more unless otherwise specified. The terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth," etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-3, the present embodiment provides a gearbox that includes a gearbox drive structure that further includes a cushion coupling. As shown in fig. 4, the buffer coupling has a displacement compensation function, so that the transmission structure of the gearbox equipped with the buffer coupling has the displacement compensation function, and particularly, displacement changes existing inside the transmission structure and between the transmission structure and the wheels 9 are effectively compensated, so that the vehicle can run more stably, and the running safety is improved. In addition, the transmission structure of the gear box has the advantages of compact structure, simple structure, less axial space requirement, easy operation and maintenance and convenient disassembly.

As shown in fig. 4, in the output coupling assembly 12 of the present embodiment, a driven gear assembly 13 of the gear transmission structure is connected to the wheel 9 through the output coupling assembly 12, and the driven gear assembly 13 is engaged with the driving gear assembly 14, so that sufficient transmission output power is obtained during the engagement transmission with the driving gear assembly 14, and the transmission power is transmitted to the wheel 9, thereby driving the wheel 9 to rotate.

In this embodiment, the output coupling assembly 12 includes a connector barrel 12-2 and a cushion coupling. Two ends of the connecting cylinder 12-2 are respectively connected to the wheel 9 and the driven gear assembly 13 through buffer couplings, the connecting cylinder 12-2 axially penetrates through a shaft hole of the driven gear assembly 13, and the driven gear assembly 13 drives the connecting cylinder 12-2 and the wheel 9 to rotate through rotation so as to realize a transmission process that power of a transmission structure is input to the wheel and output to the wheel. Preferably, when the connecting cylinder 12-2 is inserted into the shaft hole of the driven gear assembly 13, one end of the connecting cylinder 12-2, which is far away from the wheel 9, is fixed with the driven gear assembly 13, while the other end is connected with the wheel 9 and is spaced from the inner wall of the shaft hole of the driven gear assembly 13, so as to reserve a rotating space for the wheel 9.

In order to realize the displacement compensation function, as shown in fig. 5 and fig. 6, the cushion coupling of the embodiment includes a coupling body and cushion blocks 12-7, a plurality of cushion blocks 12-7 are embedded at intervals on the circumference of the coupling body, each cushion block 12-7 is used for providing elastic compensation for the relative displacement generated on the circumference of the coupling body in the rotation process of the coupling body, so that the cushion blocks 12-7 are used for providing the displacement compensation and the cushion effect of the coupling body on the rotation circumference in the power transmission process, and when the cushion coupling is installed on the output coupling assembly 12, the displacement compensation capability on the rotation circumference can be respectively increased between the output coupling assembly 12 and the driven gear assembly 13 and between the output coupling assembly 12 and the wheel 9 through the effect, so as to compensate the relative displacement change between the inside of the gear box transmission structure and the wheel 9 in the transmission process And the transmission structure and the gearbox have displacement compensation capacity.

Specifically, the driven gear assembly 13 rotates to drive the connecting cylinder 12-2 to rotate, in this case, the buffer couplings at the two ends of the connecting cylinder 12-2 rotate accordingly and drive the wheels 9 to rotate respectively. In the process, as the plurality of buffer blocks 12-7 are embedded in the circumferential direction of the coupling body of the buffer coupling, if circumferential displacement changes are generated between the connecting cylinder 12-2 and the wheel or between the connecting cylinder 12-2 and the driven gear assembly 13 in the rotating process, the plurality of buffer blocks 12-7 in the circumferential direction of the buffer coupling can provide elastic compensation effect for the circumferential displacement changes by using elasticity, so that the circumferential displacement change trend among the wheel 9, the connecting cylinder 12-2 and the driven gear assembly 13 is relieved, even the displacement changes can be completely eliminated, and the radial movement of the wheel is avoided. The bumpers 12-7 are preferably made of rubber, but may be made of other resilient materials commonly used in the art.

Further, it is preferable that the buffer blocks 12-7 are constructed in a multi-layered stacked structure, that is, as shown in fig. 5 and 6, both ends of the buffer blocks 12-7 are connected between the two fixing ribs 12-8, respectively. The buffer blocks 12-7 include a plurality of elastic buffer layers and adhesive layers respectively connected between the elastic buffer layers. Because the multilayer elastic buffer layers and the multilayer bonding layers are arranged at intervals, the buffer blocks 12-7 can be bent into an arc shape which can be attached to the outer edge shape of the buffer coupling, and therefore when the buffer coupling rotates, the buffer and circumferential displacement compensation effects can be generated by utilizing the elastic acting force between the fixing ribs 12-8 and the buffer blocks 12-7.

As shown in fig. 4, the cushion coupling includes a first coupling body 12-1 and a second coupling body 12-3. Wherein, the first coupling body 12-1 is connected between the connecting cylinder 12-2 and the driven gear assembly 13, and is used for compensating the displacement change between the output coupling assembly 12 and the driven gear assembly 13; the second coupling body 12-3 is connected between the wheel 9 and the connecting cylinder 12-2 to compensate for variations in displacement between the output coupling assembly 12 and the wheel 9.

Preferably, the connector barrel 12-2 is flared. The end with the smaller caliber on the connecting cylinder 12-2 is fixedly connected with a driven gear assembly 13 through a first coupling body 12-1, and the end with the larger caliber on the connecting cylinder 12-2 is fixedly connected with a wheel 9 through a second coupling body 12-3, so that the rotating process of the connecting cylinder 12-2 in the transmission process is more labor-saving.

As shown in fig. 5, the coupling body is constructed as the first coupling body 12-1. The first coupling body 12-1 includes a first mounting plate 12-5 and a second mounting plate 12-6. The central shaft of the first mounting disc 12-5 is sleeved in the shaft hole of the second mounting disc 12-6, the central shaft of the first mounting disc 12-5 is fixedly connected with the end face of the connecting cylinder 12-2, the end face of the second mounting disc 12-6, which is opposite to the first mounting disc 12-5, is fixedly connected with the driven gear assembly 13, a plurality of fixing ribs 12-8 are distributed on the circumference of the second mounting disc 12-6, buffer blocks 12-7 are embedded between the adjacent fixing ribs 12-8, and each buffer block 12-7 is fixedly connected with the circumference of the first mounting disc 12-5 respectively. The structure enables the driven gear 13-3 gear assembly to synchronously drive the first mounting disc 12-5 and the second mounting disc 12-6 to rotate when rotating, and in the process of rotating power transmission, as the first mounting disc 12-5 is connected with the second mounting disc 12-6 through the buffer block 12-7, when the first mounting disc 12-5 is transmitted with the second mounting disc 12-6, the buffer block 12-7 effectively compensates displacement changes such as radial eccentricity, circumferential dislocation and the like which may be generated between the first mounting disc 12-5 and the second mounting disc 12-6, in other words, the buffer block 12-7 provides buffering and displacement compensation effects for the transmission between the driven gear assembly 13 and the output coupling assembly 12.

As shown in fig. 6, the coupling body is constructed as the second coupling body. The second coupling body 12-3 includes a third mounting plate and an external fastener 12-4. One end of the third mounting plate is integrally connected with the end face of the connecting cylinder 12-2, and the other end of the third mounting plate is circumferentially connected with a plurality of external fasteners 12-4 so as to be convenient for fastening and connecting the wheels 9. A plurality of fixing ribs 12-8 are distributed on the circumference of the third mounting plate, buffer blocks 12-7 are embedded between the adjacent fixing ribs 12-8, and the buffer principle of the buffer blocks 12-7 is as described above and is not described herein again. The buffer block 12-7 can effectively compensate displacement changes such as radial eccentricity and relative displacement in the circumferential direction of rotation which may occur between the connecting cylinder 12-2 and the wheel 9, in other words, the buffer block 12-7 provides buffering and displacement compensation effects for the transmission between the output coupling assembly 12 and the wheel 9.

Preferably, each buffer block 12-7 is provided with a connecting mechanism which is clamped between two elastic buffer layers of the buffer block 12-7 and is fixed on the third mounting plate, one side of the connecting mechanism facing the wheel 9 is provided with more than one wheel connecting bolt as an external connecting fastener 12-4, and each wheel connecting bolt is preferably parallel to the axial direction of the buffer coupling, so that the wheel 9 can be kept vertical to the axle in a straight running state when being fastened on the second buffer coupling 12-3 through multiple groups of external connecting fasteners 12-4, and the buffer coupling is used for reducing the radial eccentricity and the relative displacement change in the rotating circumferential direction between the wheel 9 and the axle to play a displacement compensation role. Preferably, the circumscribing fastener 12-4 can be selected from other conventional fastener configurations in addition to the wheel attachment bolts.

As shown in fig. 3, the transmission structure of the gear box of the present embodiment includes an input coupling assembly 15, a driving gear assembly 14, a driven gear assembly 13, and an output coupling assembly 12 as described above, on the basis of the above-described structure. The driving gear assembly 14 is engaged with the driven gear assembly 13, and the axial direction of the driving gear assembly 14 is perpendicular to the axial direction of the driven gear assembly 13, so as to realize power transmission through gear transmission. The input coupling assembly 15 is connected to the drive gear assembly 14, and the input coupling assembly 15 is connected to the motor.

As shown in fig. 1 to 3 and 7, in addition to the above-described structure, the transmission structure of the gear box according to the present embodiment further includes an upper case 1 and a lower case 8. The upper box body 1 and the lower box body 8 can be mutually butted, so that an installation space communicated with each other is formed in the upper box body 1 and the lower box body 8. A driving gear mounting hole is formed in the upper box body 1 and communicated with the mounting space. The input coupling assembly 15 and the driving gear assembly 14 are both arranged in the upper box body 1, wherein the driving gear assembly 14 is arranged in a driving gear mounting hole in the upper box body 1; the output coupling assembly 12 and the driven gear assembly 13 are arranged in the installation space; the lower case 8 is filled with lubricating oil 16 at the bottom thereof, and the driven gear assembly 13 is partially immersed in the lubricating oil 16.

As shown in fig. 3 and 7, the drive gear assembly 14 includes a drive gear shaft 14-1, an input bearing and an input bearing mount 14-5. The driving gear shaft 14-1 is installed in the input bearing seat 14-5 through a plurality of input bearings, and the driving gear shaft 14-1 is perpendicular to the hollow shaft 13-1, so that the driving gear assembly 14 can be installed in the radial direction of the driven gear assembly 13 in a cantilever structure, and the axial space inside the gear box is simplified. One end of the driving gear shaft 14-1 is provided with a bevel gear tooth surface structure which is engaged with a driven gear 13-3 in a driven gear assembly 13 described below. The other end of the drive gear shaft 14-1 is connected to an input coupling assembly 15.

Preferably, the drive gear shaft 14-1 is supported within the drive gear mounting hole of the gearbox by at least two sets of input bearings. In this embodiment, a first bearing 14-2 and a second bearing 14-4 are respectively mounted at both ends of the driving gear shaft 14-1. The first bearing 14-2 and the second bearing 14-4 are each preferably tapered roller bearings. Preferably, an input bearing seat 14-5 is further installed outside the driving gear shaft 14-1, the first bearing 14-2 and the second bearing 14-4 are respectively sleeved in the input bearing seat 14-5, the input bearing seat 14-5 is located between the first bearing 14-2 and the second bearing 14-4, and the input bearing seat 14-5 is fixed on the inner wall of the driving gear installation hole. A spacer ring 14-3 is sleeved between the input bearing seat 14-5 and the driving gear shaft 14-1. A sealing end cover 14-9 and a sealing ring 14-6 are sleeved outside one end of the driving gear shaft 14-1 close to the input coupling assembly 15 so as to improve the sealing performance of a driving gear mounting hole of the gear box. Wherein the end seal cap 14-9 is located between the seal ring 14-6 and the second bearing 14-4. A shaft end pressing plate 14-7 is arranged on the end surface of the driving gear shaft 14-1 connected with the input coupling assembly 15; an adjusting ring 14-8 is sleeved outside the driving gear shaft 14-1, and the adjusting ring 14-8 is positioned between the input coupling assembly 15 and the sealing ring and used for adjusting the relative installation position between the input coupling assembly 15 and the side wall of the box body 1 on the gear box.

In this embodiment, as shown in fig. 3 and 4, the driven gear assembly 13 includes a hollow shaft 13-1, a driven gear 13-3, an output bearing and an output bearing seat 13-5. One end of the hollow shaft 13-1 is connected with a driven gear 13-3, the other end is fixedly connected with an output coupling assembly 12, and the driven gear 13-3 is connected to an output bearing seat 13-5 through an output bearing, so that the requirement of the axial space inside a box body of the gear box is saved. Preferably, one end of the hollow shaft 13-1 close to the wheel 9 is fixedly connected with the driven gear 13-3 through a bolt, the driven gear 13-3 is supported on the output shaft bearing seat 13-5 through a fourth bearing 13-4, the output shaft bearing seat 13-5 is fixed on the wheel side of the gear box, and the outer wall of the hollow shaft 13-1 is configured to have a boss structure, and the boss structure is supported on the side of the gear box far away from the wheel 9 through a third bearing 13-2, so that the hollow shaft 13-1 is ensured to rotate under the driving of the driven gear 13-3. Preferably, the third bearing 13-2 and the fourth bearing 13-4 are tapered roller bearings. Further, a third bearing 13-2 and an output bearing seat 13-5 are respectively fixed between the upper box body 1 and the lower box body 8 of the gear box, so that the driven gear assembly 13 is fixed in the installation space of the gear box, and the driven gear assembly 13 is ensured to be arranged along the axial direction of the gear box, so as to optimize the requirement of the axial space inside the box body of the gear box.

In the embodiment, one end of the hollow shaft 13-1, which is far away from the wheel 9, is connected with the second mounting disc 12-6 of the first coupling body 12-1 on the output coupling assembly 12 through an end face tooth-shaped meshing structure, and the end faces of the shaft holes of the hollow shaft 13-1 and the second mounting disc 12-6 are locked and fixed through bolts, so that the second mounting disc 12-6 can be driven to rotate when the hollow shaft 13-1 rotates. The end face tooth-shaped meshing structure can lock and clamp the end face of the hollow shaft 13-1 and the end face of the shaft hole of the second mounting disc 12-6, so that the defects of dislocation and eccentricity cannot occur between the two end faces during transmission.

Furthermore, the outline of the shaft hole of the hollow shaft 13-1 is similar to the outline of the outer wall of the connecting cylinder 12-2, but the section diameter of any position of the hollow shaft 13-1 is larger than that of the corresponding position of the connecting cylinder 12-2, so that the gap is reserved between the outer wall of the connecting cylinder 12-2 and the inner wall of the shaft hole of the hollow shaft 13-1 when the connecting cylinder 12-2 is sleeved in the hollow shaft 13-1.

Furthermore, a sealing end cover 13-6 is covered on the end face of the wheel side of the output shaft bearing seat 13-5, the sealing end cover 13-6 is buckled on the end face of the wheel side of the driven bearing seat, and a sealing ring 13-7 is arranged between the sealing end cover 13-6 and the driven bearing seat so as to ensure that the gear box has excellent sealing performance on the wheel side.

Based on the above structure, the present embodiment also provides a gearbox including the gearbox drive system as described above. Specifically, referring to fig. 1, the gear box according to the embodiment is characterized in that an upper box 1 and a lower box 8 are butted and fixed by bolts 4, a joint surface of the upper box 1 and the lower box 8 is inclined, and an axial level of a driving gear mounting hole in the upper box 1 is ensured, as shown in fig. 7. Under the condition that the upper box body 1 and the lower box body 8 are butted, an installation space is formed between the upper box body 1 and the lower box body 8, the installation space is communicated with one end of a driving gear installation hole in the upper box body 1, the other end of the driving gear installation hole is provided with a motor connection interface 1-1, and the side surface of the driving gear installation hole is provided with a bogie connection interface 1-2. As shown in FIG. 2, the side of the gear box near the wheel 9 is provided with a wheel connecting end 10, and when the driven gear assembly 13 is installed in the installation space, all the external fasteners 12-4 connected to the second coupling body 12-3 extend out of the gear box from the wheel side of the gear box and are connected to the wheel 9.

As shown in figure 1, the top of the upper box body 1 is also provided with an observation port cover 2 and a respirator 3, and the observation port cover 2 and the respirator 3 are both connected with the installation space inside the gear box. It has oiling plug screw 5, oil level window 6 and drain plug screw 7 to distribute on box 8 down, and oiling plug screw 5, oil level window 6 and drain plug screw 7 all are set up by the downside at the inside installation space of gear box to rationally arrange oiling plug screw 5, oil level window 6 and drain plug screw 7's position, should set up oiling plug screw 5 in drain plug screw 7's top.

As shown in FIG. 2, a coupling viewing port 11 is further provided on the side of the motor connecting port 1-1 of the upper housing 1 for directly viewing the operating states of the input coupling assembly 15 and the driving gear shaft 14-1 assembly.

As shown in fig. 7, lubricating oil 16 is carried in the lower case 8 at the lower portion of the installation space in the gear case, and when the driven gear assembly 13 is installed in the installation space, a part of the driven gear assembly 13 can be immersed in the lubricating oil 16. And a lubricating oil inlet oil groove 14-10 is formed in the upper box body 1 at the top of the driving gear mounting hole along the axial direction of the driving gear shaft 14-1, and a lubricating oil return oil groove 14-11 is correspondingly formed in the upper box body 1 at the bottom of the driving gear mounting hole along the axial direction of the driving gear shaft 14-1 so as to ensure the normal inlet and outlet of lubricating oil 16 in the gear box mounting space.

In summary, the cushion coupling of the present embodiment includes a coupling body and cushion blocks 12-7, wherein the plurality of cushion blocks 12-7 are embedded at intervals in the circumferential direction of the coupling body, and during the rotation of the coupling body, each cushion block 12-7 is used for providing elastic compensation for the relative displacement generated in the circumferential direction of the coupling body. The buffer coupling utilizes the buffer blocks 12-7 to provide displacement compensation and buffer action in the circumferential direction of rotation, the buffer action can respectively increase the displacement compensation capacity in the circumferential direction between the output coupling assembly 12 and the driven gear assembly 13 and between the output coupling assembly 12 and the wheels 9, and compensate the relative displacement change in the circumferential direction of rotation possibly generated in the transmission structure of the gear box and between the transmission structure and the wheels 9 in the transmission process, so that the transmission structure and the gear box have the displacement compensation capacity; the transmission structure and the gear box also have the advantages of compact structure, simple structure, less axial space requirement, easy operation and maintenance and convenient disassembly.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims (10)

1. The buffer coupling comprises a coupling body and buffer blocks, wherein the plurality of buffer blocks arranged at intervals are embedded in the circumferential direction of the coupling body respectively, and each buffer block is used for providing elastic compensation for relative displacement generated in the circumferential direction of the coupling body in the rotating process of the coupling body.

2. The cushion coupling according to claim 1, wherein a plurality of fixing ribs are provided circumferentially of the coupling body, and the cushion block is fitted between adjacent fixing ribs.

3. The cushioned coupling of claim 1, wherein said cushion blocks comprise a plurality of resilient cushion layers and a bonding layer respectively connected between each of said resilient cushion layers.

4. A cushion coupling according to any one of claims 1 to 3, wherein said coupling body is a first coupling body, said first coupling body includes a first mounting plate and a second mounting plate, a center of said first mounting plate is fitted in a shaft hole of said second mounting plate, a plurality of fixing ribs are distributed circumferentially of said second mounting plate, said cushion blocks are fitted between adjacent fixing ribs, and each of said cushion blocks is fixed circumferentially of said first mounting plate.

5. A cushion coupling according to any one of claims 1 to 3, wherein said coupling body is a second coupling body, said second coupling body including a third mounting plate and a plurality of said male fasteners circumferentially distributed on an end surface of said third mounting plate; a plurality of fixing ribs are distributed on the third mounting disc in the circumferential direction, and the buffer blocks are embedded between the adjacent fixing ribs.

6. A gearbox transmission structure is characterized by comprising an input coupling assembly, a driving gear assembly, a driven gear assembly and an output coupling assembly, wherein the input coupling assembly is connected with the driving gear assembly, the driving gear assembly is meshed with the driven gear assembly, and the axial direction of the driving gear assembly is perpendicular to the axial direction of the driven gear assembly;

the output coupling assembly comprises a connecting cylinder and a buffer coupling according to any one of claims 1 to 5, wherein two ends of the connecting cylinder are respectively connected to a wheel and the driven gear assembly through the buffer coupling, the connecting cylinder can axially penetrate through a shaft hole of the driven gear assembly, and the driven gear assembly drives the connecting cylinder and the wheel to rotate through rotation.

7. A gearbox drive arrangement as defined in claim 6, wherein said cushion coupling includes a first coupling body and a second coupling body, said first coupling body being connected between said connector barrel and said driven gear assembly, said second coupling body being connected between said wheel and said connector barrel.

8. A gearbox drive arrangement as defined in claim 7, wherein said connecting cylinder is flared, a first end of said connecting cylinder being fixedly connected to said driven gear assembly via said first coupling body, a second end of said connecting cylinder being fixedly connected to said wheel via said second coupling body, a caliber of said first end being smaller than a caliber of said second end.

9. A gearbox drive arrangement as defined in claim 6, wherein said driven gear assembly includes a hollow shaft, a driven gear, an output bearing and an output bearing mount, said hollow shaft having one end connected to said driven gear and another end fixedly connected to said output coupling assembly, said driven gear being connected to said output bearing mount through said output bearing;

the driving gear assembly comprises a driving gear shaft, an input bearing and an input bearing seat, the driving gear shaft is installed in the input bearing seat through a plurality of input bearings and is perpendicular to the hollow shaft, a bevel gear tooth surface structure meshed with the driven gear is arranged at one end of the driving gear shaft, and the other end of the driving gear shaft is connected with the input coupling assembly.

10. A gearbox comprising a gearbox drive arrangement according to any of claims 6-9.

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