Axle wheel side mechanism of excavator

Abstract

The utility model provides an axle wheel side mechanism of an excavator, which comprises an axle body, a steering component rotationally connected to two ends of the axle body, a wheel side transmission component rotationally connected to the steering component, and a hub component mounted on the wheel side transmission component, the differential assembly is in transmission connection with the wheel edge transmission assembly through the steering assembly; the hub assembly comprises a first hub and a second hub, the first hub and the second hub are installed on the wheel edge transmission assembly, and each of the first hub and the second hub is composed of a hub body and a hub edge body. By means of the structure, the hub assembly is arranged to be the first hub and the second hub, the supporting capacity for an excavator can be improved, the first hub and the second hub are arranged to be the hub body and the hub edge body which are matched, the first hub and the second hub can be conveniently detached, and the service life of the excavator is prolonged. Therefore, the tire, the wheel edge transmission assembly and the hub assembly are convenient to disassemble, assemble and maintain.

Description

Technical Field

[0001] This utility model relates to the field of excavator axle technology, and more particularly to an excavator axle wheel-side mechanism. Background Technology

[0002] The axle-wheel mechanism of an excavator generally includes an axle section and a wheel-side section. The axle section supports the wheel-side section and provides mechanical transmission for it. The wheel-side section connects to the tire, enabling the mechanical power of the axle section to be transmitted to the tire through the wheel-side section, thus allowing the excavator to move.

[0003] The wheel rim section generally includes the wheel rim drive components and the wheel hub. The wheel hub is used to mount the tire, provide support for the wheel rim section, and play a buffering role to facilitate the excavator's movement on the road. However, when it is necessary to repair the tire, wheel hub, or wheel rim drive components, since traditional wheel hubs are mostly made in one piece, it is not convenient to remove the tire from the wheel hub, causing trouble during maintenance. Utility Model Content

[0004] This utility model discloses a wheel-side mechanism for an excavator axle, which mainly solves the problem that since traditional wheel hubs are mostly made as one piece, it is inconvenient to disassemble the tire or wheel hub when maintenance is required on the tire, wheel hub or wheel-side transmission components.

[0005] To achieve the aforementioned objective, the technical solution of this utility model is implemented as follows:

[0006] This utility model provides a wheel-side mechanism for an excavator axle, including an axle body, a steering assembly rotatably connected to both ends of the axle body, a wheel-side transmission assembly rotatably connected to the steering assembly, and a wheel hub assembly mounted on the wheel-side transmission assembly. A differential assembly is provided in the axle body, and the differential assembly is connected to the wheel-side transmission assembly through the steering assembly.

[0007] The wheel hub assembly includes a first wheel hub and a second wheel hub, which are respectively mounted on the wheel-side transmission assembly. Both the first wheel hub and the second wheel hub are composed of a wheel hub body and a wheel hub side body.

[0008] The hub body includes a cylindrical hub body, one end of which is provided with an outwardly extending first hub edge, and the other end is provided with an outwardly bent rolled edge, so that the cylindrical hub body forms a groove at the position corresponding to the rolled edge.

[0009] The hub side body includes a ring, and a second hub side extending outward is provided on the side of the ring away from the hub body. A locking block is provided on the ring at the position corresponding to the locking groove, and the locking groove and the locking block are interference fit.

[0010] In one embodiment, a connecting plate is provided at one end of the cylindrical hub corresponding to the second hub, and the connecting plate is mounted on the wheel-side transmission assembly.

[0011] In one embodiment, the first wheel hub and the second wheel hub are arranged symmetrically.

[0012] In one embodiment, the steering assembly includes a steering joint and a steering connector, the steering joint being rotatably connected to the axle body, and the steering connector being used to connect the differential assembly and the wheel-side drive assembly.

[0013] In one embodiment, the wheel-side drive assembly includes a wheel-side housing, a cover, a planetary carrier, a sun gear, multiple planetary gears, an internal gear ring carrier, and a wheel-side drive shaft rotatably connected to a steering joint. The cover is mounted on the wheel-side housing, the planetary carrier is disposed on the cover, the multiple planetary gears are rotatably connected between the cover and the planetary carrier, the internal gear ring carrier is mounted on the steering joint, the multiple planetary gears mesh with the sun gear and the internal gear ring carrier respectively, the internal gear ring carrier is provided with a cavity for accommodating the planetary carrier, one end of the wheel-side drive shaft is connected to a steering connector, and the other end is connected to the sun gear.

[0014] In one embodiment, the differential assembly includes a differential transmission component. An input shaft is provided on one side of the differential transmission component. Output shafts, connected to the differential transmission component, are respectively provided at both ends of the differential transmission component corresponding to the steering joint. The other end of the output shaft is connected to a steering connector. The differential transmission component includes a bevel gear, a left half-shaft gear, multiple planetary half-shaft gears, and a right half-shaft gear. The bevel gear and the left half-shaft gear are concentrically arranged. The left half-shaft gear meshes with one side of the planetary half-shaft gears, and the other side of the planetary half-shaft gear meshes with the right half-shaft gear. The right half-shaft gear is mounted on the output shaft. An input gear is provided on the input shaft, and the input gear meshes with the bevel gear.

[0015] The advantages or beneficial effects of the above technical solution include at least the following: by setting the wheel hub assembly as a first wheel hub and a second wheel hub, the support capacity for the excavator can be improved; by setting both the first wheel hub and the second wheel hub as a wheel hub body and a wheel hub side body, they form a split structure; and by using the interference fit between the groove of the wheel hub body and the locking block of the wheel hub side body, the first wheel hub and the second wheel hub can be easily disassembled, so as to facilitate the disassembly, assembly and maintenance of the tire, wheel-side drive assembly and wheel hub assembly. Attached Figure Description

[0016] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0017] Figure 1 A schematic diagram of an axle wheel-side mechanism according to an exemplary embodiment of the present invention is shown;

[0018] Figure 2 A cross-sectional schematic diagram of an axle wheel-side mechanism according to an exemplary embodiment of the present invention is shown;

[0019] Figure 3 An exploded view of a wheel-side drive assembly according to an exemplary embodiment of the present invention is shown;

[0020] Figure 4 A schematic diagram of a hub body and a hub side body according to an exemplary embodiment of the present invention is shown;

[0021] Figure 5 An exemplary embodiment of the present invention is shown. Figure 4 A cross-sectional schematic diagram;

[0022] Figure 6 A schematic diagram of a wheel hub body according to an exemplary embodiment of the present invention is shown;

[0023] Figure 7 A schematic diagram of a hub side body according to an exemplary embodiment of the present invention is shown;

[0024] Figure 8 A schematic diagram of a differential assembly according to an exemplary embodiment of the present invention is shown.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Axle body;

[0027] 2. Steering components;

[0028] 21. Steering joint; 22. Steering connector;

[0029] 3. Wheel-side drive assembly;

[0030] 31. Wheel housing; 32. Cover; 33. Planetary carrier; 34. Sun gear; 35. Planetary gear; 36. Internal gear ring carrier; 361. Cavity; 37. Wheel drive shaft;

[0031] 4. Wheel hub assembly;

[0032] 41. First hub; 42. Second hub; 43. Hub body; 431. Cylindrical hub body; 432. First hub edge; 433. Rolled edge; 434. Slot; 435. Connecting plate; 44. Hub edge body; 441. Ring; 442. Second hub edge; 443. Locking block;

[0033] 5. Differential components;

[0034] 51. Differential transmission component; 511. Bevel gear; 512. Left half-shaft gear; 513. Planetary half-shaft gear; 514. Right half-shaft gear; 52. Input shaft; 521. Input gear; 53. Output shaft. Detailed Implementation

[0035] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0036] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0038] It should be noted that the terms "a" and "a plurality of" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0039] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0040] See Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7The present invention provides an excavator axle wheel-side mechanism, including an axle body 1, a steering assembly 2 rotatably connected to both ends of the axle body 1, a wheel-side transmission assembly 3 rotatably connected to the steering assembly 2, and a wheel hub assembly 4 mounted on the wheel-side transmission assembly 3. A differential assembly 5 is provided in the axle body 1, and the differential assembly 5 is connected to the wheel-side transmission assembly 3 through the steering assembly 2.

[0041] The wheel hub assembly 4 includes a first wheel hub 41 and a second wheel hub 42. The first wheel hub 41 and the second wheel hub 42 are respectively mounted on the wheel-side transmission assembly 3. Both the first wheel hub 41 and the second wheel hub 42 are composed of a wheel hub body 43 and a wheel hub side body 44.

[0042] The hub body 43 includes a cylindrical hub body 431. One end of the cylindrical hub body 431 is provided with an outwardly extending first hub edge 432, and the other end is provided with an outwardly bent rolled edge 433, so that the cylindrical hub body 431 forms a groove 434 corresponding to the rolled edge 433.

[0043] The wheel hub side body 44 includes a ring 441. A second wheel hub side 442 extending outward is provided on the side of the ring 441 away from the wheel hub body 43. A locking block 443 is provided on the ring 441 at the position corresponding to the locking groove 434. The locking groove 434 and the locking block 443 are interference fit.

[0044] By adopting the above structure, the support capacity for the excavator can be improved by setting the wheel hub assembly 4 as the first wheel hub 41 and the second wheel hub 42. The first wheel hub 41 and the second wheel hub 42 are both set as a wheel hub body 43 and a wheel hub side body 44, forming a split structure. With the interference fit between the groove 434 of the wheel hub body 43 and the locking block 443 of the wheel hub side body 44, the first wheel hub 41 and the second wheel hub 42 can be easily disassembled, so as to facilitate the disassembly, assembly and maintenance of the tire, the wheel-side transmission assembly 3 and the wheel hub assembly 4.

[0045] In one embodiment, see Figure 2 , Figure 3 , Figure 5 and Figure 6 A connecting plate 435 is provided at one end of the cylindrical hub 431 corresponding to the second hub 42, and the connecting plate 435 is mounted on the wheel-side transmission assembly 3. In practical applications, the connecting plate 435 facilitates the mounting of the cylindrical hub 431 onto the wheel-side transmission assembly 3.

[0046] The first wheel hub 41 and the second wheel hub 42 are symmetrically arranged. In practical applications, the symmetrical arrangement of the first wheel hub 41 and the second wheel hub 42 means that the wheel hub side bodies 44 of the first wheel hub 41 and the second wheel hub 42 are oriented towards or away from each other. The preferred arrangement is that they are oriented towards each other. With this arrangement, when the tire pressure is too high, the wheel hub side body 44 can be detached from the wheel hub body 43, thereby playing a role in preventing tire blowout caused by excessive pressure, which could lead to the axle jumping up.

[0047] In one embodiment, see Figure 2 The steering assembly 2 includes a steering joint 21 and a steering connector 22. The steering joint 21 is rotatably connected to the axle body 1, and the steering connector 22 is used to connect the differential assembly 5 and the wheel-side drive assembly 3. In practical applications, the steering joint 21 facilitates steering along with the tire when the tire rotates, and the steering connector 22 facilitates the transmission between the differential assembly 5 and the wheel-side drive assembly 3.

[0048] In one embodiment, see Figure 2 and Figure 3 The wheel-side drive assembly 3 includes a wheel-side housing 31, a cover 32, a planetary carrier 33, a sun gear 34, multiple planetary gears 35, an internal gear ring carrier 36, and a wheel-side drive shaft 37, all rotatably connected to the steering joint 21. The cover 32 is mounted on the wheel-side housing 31, the planetary carrier 33 is disposed on the cover 32, and the multiple planetary gears 35 are rotatably connected between the cover 32 and the planetary carrier 33. The internal gear ring carrier 36 is mounted on the steering joint 21, and the multiple planetary gears 35 mesh with the sun gear 34 and the internal gear ring carrier 36, respectively. The internal gear ring carrier 36 has a cavity 361 for accommodating the planetary carrier 33. One end of the wheel-side drive shaft 37 is connected to the steering connector 22, and the other end is connected to the sun gear 34. In practical applications, through the cooperation of the sun gear 34, the multiple planetary gears 35, and the internal gear ring carrier 36, the power of the wheel-side drive shaft 37 can be transmitted to the wheel-side housing 31, thereby driving the wheel hub assembly 4 to rotate.

[0049] In one embodiment, see Figure 1 , Figure 2 and Figure 8The differential assembly 5 includes a differential transmission component 51. An input shaft 52 is provided on one side of the differential transmission component 51. Output shafts 53, which are connected to the differential transmission component 51, are respectively provided at both ends of the differential transmission component 51 corresponding to the steering joint 21. The other end of the output shaft 53 is connected to the steering connector 22. The differential transmission component 51 includes a bevel gear 511, a left half-shaft gear 512, multiple planetary half-shaft gears 513, and a right half-shaft gear 514. The bevel gear 511 and the left half-shaft gear 512 are concentrically arranged. The left half-shaft gear 512 meshes with one side of the planetary half-shaft gear 513. The other side of the planetary half-shaft gear 513 meshes with the right half-shaft gear 514. The right half-shaft gear 514 is mounted on the output shaft 53. An input gear 521 is provided on the input shaft 52 and meshes with the bevel gear 511. In practical applications, through the cooperation of differential transmission component 51, input shaft 52 and output shaft 53, the excavator's power can be transmitted to input shaft 52, and then transmitted to output shaft 53 through differential transmission component 51, thereby driving the rotation of wheel-side transmission component 3.

[0050] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0051] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications can be made based on the above-described invention, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A wheel-side mechanism for an excavator axle, characterized in that, The vehicle includes an axle body, a steering assembly rotatably connected to both ends of the axle body, a wheel-side drive assembly rotatably connected to the steering assembly, and a wheel hub assembly mounted on the wheel-side drive assembly. A differential assembly is provided in the axle body, and the differential assembly is connected to the wheel-side drive assembly through the steering assembly. The wheel hub assembly includes a first wheel hub and a second wheel hub, which are respectively mounted on the wheel-side transmission assembly. Both the first wheel hub and the second wheel hub are composed of a wheel hub body and a wheel hub side body. The hub body includes a cylindrical hub body, one end of which is provided with an outwardly extending first hub edge, and the other end is provided with an outwardly bent rolled edge, so that the cylindrical hub body forms a groove at the position corresponding to the rolled edge. The hub side body includes a ring, and a second hub side extending outward is provided on the side of the ring away from the hub body. A locking block is provided on the ring at the position corresponding to the locking groove, and the locking groove and the locking block are interference fit.

2. The axle wheel-side mechanism of the excavator as described in claim 1, characterized in that, A connecting plate is provided at one end of the cylindrical hub corresponding to the second hub, and the connecting plate is mounted on the wheel-side transmission assembly.

3. The axle wheel-side mechanism of the excavator as described in claim 1, characterized in that, The first wheel hub and the second wheel hub are arranged symmetrically.

4. The axle wheel-side mechanism of the excavator as described in claim 1, characterized in that, The steering assembly includes a steering joint and a steering connector. The steering joint is rotatably connected to the axle body, and the steering connector is used to connect the differential assembly and the wheel-side drive assembly.

5. The axle wheel-side mechanism of the excavator as described in claim 4, characterized in that, The wheel-side drive assembly includes a wheel-side housing, a cover, a planetary carrier, a sun gear, multiple planetary gears, an internal gear ring carrier, and a wheel-side drive shaft, all rotatably connected to the steering joint. The cover is mounted on the wheel-side housing, the planetary carrier is disposed on the cover, the multiple planetary gears are rotatably connected between the cover and the planetary carrier, the internal gear ring carrier is mounted on the steering joint, and the multiple planetary gears mesh with the sun gear and the internal gear ring carrier respectively. The internal gear ring carrier has a cavity for accommodating the planetary carrier. One end of the wheel-side drive shaft is connected to the steering connector, and the other end is connected to the sun gear.

6. The axle wheel-side mechanism of the excavator as described in claim 4, characterized in that, The differential assembly includes a differential transmission component. An input shaft is provided on one side of the differential transmission component. Output shafts, connected to the differential transmission component, are respectively provided at both ends of the differential transmission component corresponding to the steering joint. The other end of the output shaft is connected to a steering connector. The differential transmission component includes a bevel gear, a left half-shaft gear, multiple planetary half-shaft gears, and a right half-shaft gear. The bevel gear and the left half-shaft gear are concentrically arranged. The left half-shaft gear meshes with one side of the planetary half-shaft gears, and the other side of the planetary half-shaft gear meshes with the right half-shaft gear. The right half-shaft gear is mounted on the output shaft. An input gear is provided on the input shaft, and the input gear meshes with the bevel gear.

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