Construction machinery wheel devices and road rollers

Abstract

The present application provides a construction machinery wheel device and a road roller. The construction machinery wheel device includes: a wheel assembly, including a first wheel, a second wheel and a third wheel arranged in sequence along the axial direction; a coupling mechanism, arranged along the axial direction of the wheel assembly, and respectively connected to the first wheel, the second wheel and the third wheel in a transmission manner; wherein the portion of the coupling mechanism corresponding to the second wheel is a detachable structure, so that the second wheel can be disassembled separately. In the technical solution of the present application, each wheel can be disassembled and assembled separately, avoiding mutual interference between the wheels during the disassembly and assembly process, effectively simplifying the operation process of wheel disassembly and assembly maintenance, reducing the workload of manual operation, improving operation efficiency, and being able to achieve quick disassembly operations, which is conducive to reducing the impact on construction operations.

Description

Technical Field

[0001] The present application relates to the technical field of engineering machinery, and in particular to an engineering machinery wheel device and a road roller. Background Art

[0002] At present, the wheel device of construction machinery such as tire rollers usually includes one or more wheel groups, each wheel group is provided with multiple tires, forming a multi-wheel group form. For example, in the five-wheel drive mode, two two-wheel groups and one idler wheel are used. However, since tires often need to be replaced during construction, this mode has problems such as the middle wheel is not easy to remove and cannot achieve all-wheel drive. The prior art provides a three-wheel group structure to replace the two-wheel group and the idler wheel. The three tires are connected in series with the whole shaft or the T-bridge and the connecting shaft in series with the three tires, which can achieve all-wheel drive, but it is still necessary to remove the side tires first before removing the middle tires. The operation process is complicated and time-consuming, which has a great impact on the construction work. Summary of the invention

[0003] According to the embodiments of the present invention, it is intended to improve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, an object according to an embodiment of the present invention is to provide a wheel device for an engineering machinery.

[0005] Another object of an embodiment of the present invention is to provide a road roller.

[0006] In order to achieve the above-mentioned purpose, according to an embodiment of the first aspect of the present invention, there is provided a construction machinery wheel device, comprising: a wheel assembly, comprising a first wheel, a second wheel and a third wheel arranged in sequence and spaced apart along the axial direction; a coupling mechanism, arranged along the axial direction of the wheel assembly and drivingly connected to the first wheel, the second wheel and the third wheel respectively; wherein the part of the coupling mechanism corresponding to the second wheel is a detachable structure so that the second wheel can be disassembled separately.

[0007] According to an embodiment of the first aspect of the present invention, a wheel device for an engineering machinery includes a wheel assembly and a coupling mechanism. The wheel assembly includes a first wheel, a second wheel and a third wheel, and the three wheels are arranged in sequence in an axial direction. The coupling mechanism is arranged in the axial direction to form a transmission connection with the first wheel, the second wheel and the third wheel. The coupling mechanism connects the three wheels in series and can transmit power to the three wheels at the same time.

[0008] Different positions on the coupling mechanism correspond to different wheels respectively. By setting the portion of the coupling mechanism corresponding to the second wheel to be detachable, when the second wheel needs to be replaced, the portion on the coupling mechanism is first removed, and the second wheel can be disassembled and assembled. The second wheel can be moved and taken out in a radial direction without disassembling the first wheel or the third wheel on the side. If the first wheel or the third wheel needs to be replaced, the corresponding disassembly and assembly operation can be directly performed from the side, so that the three wheels can be disassembled and assembled separately.

[0009] It can be understood that in the existing three-wheel structure, the middle tire needs to be disassembled in the axial direction, and the side tires need to be removed first during the operation, and there is mutual interference between the tires.

[0010] It should be noted that the engineering machinery wheel device in this solution can be applied to a road roller (such as a tire road roller) or other tire-driven engineering machinery. In addition, the engineering machinery wheel device can be used as a driving wheel device, connected to the driving device of the engineering machinery through a transmission mechanism to obtain power, drive the coupling mechanism and the wheel to rotate, thereby driving the engineering machinery to travel and realize all-wheel drive; of course, the engineering machinery wheel device can also be used as a driven wheel device.

[0011] The engineering machinery wheel device in this scheme improves the wheel disassembly method. Each wheel can be disassembled and assembled separately, especially the wheel located in the middle. The direction of disassembly movement is changed, and mutual interference between wheels during disassembly and assembly is avoided. The operation process of wheel disassembly and assembly maintenance is effectively simplified, and the workload of manual operation is reduced. The time required for maintenance operations can be greatly shortened, the operation efficiency is improved, and quick disassembly operations can be realized, which is beneficial to reducing the impact on construction operations.

[0012] In addition, the engineering machinery wheel device in the above technical solution provided by the embodiment of the present invention may also have the following additional technical features:

[0013] In the above technical solution, the coupling mechanism includes: a first shaft, which is transmission connected to the first wheel; an adapter, which is fixedly connected to the second wheel; a second shaft, which is transmission connected to the third wheel and one end of the adapter; a universal coupling, wherein both ends of the universal coupling are respectively detachably connected to the first shaft and the other end of the adapter; wherein at least a portion of the universal coupling extends into the second wheel, and the axial dimension of the universal coupling is greater than the axial dimension of the second wheel.

[0014] In this technical solution, the coupling mechanism includes a first shaft, a second shaft, an adapter and a universal coupling. The first shaft extends into the first wheel and is transmission-connected to the first wheel; the second shaft extends into the third wheel and is transmission-connected to the third wheel; the adapter is fixedly connected to the second wheel, one end of the adapter is transmission-connected to the second shaft, and the other end of the adapter is transmission-connected to the first shaft through the universal coupling, so as to realize the series connection of the first wheel, the second wheel and the third wheel, and drive the three wheels to rotate at the same time. The universal coupling is arranged corresponding to the second wheel, and both ends are detachably connected, so that when the second wheel needs to be disassembled and assembled, the universal coupling can be removed to provide space for the disassembly and assembly of the second wheel, and the second wheel can be moved and taken out in the radial direction, thereby avoiding mutual interference with the first wheel or the third wheel. Among them, by setting the axial size of the universal coupling to be larger than the axial size of the tire, it is ensured that after the universal coupling is removed, sufficient space is left for the removal of the second wheel to prevent the second wheel from being blocked.

[0015] In the above technical solution, the adapter includes: a flange, which is fixedly connected to the second wheel, and the side of the flange facing the first wheel is connected to the universal coupling; a connecting sleeve, which is connected to the side of the flange facing the third wheel; wherein the end of the second shaft close to the second wheel extends into the connecting sleeve and is fixedly connected to the connecting sleeve.

[0016] In this technical solution, the adapter includes a flange and a connecting sleeve. A flange fixedly connected to the second wheel is provided as a connection base; one side of the flange is connected to the universal coupling, and the other side is connected to the connecting sleeve. The end of the second shaft close to the second wheel extends into the connecting sleeve and cooperates with the connecting sleeve to form a fixed connection for power transmission.

[0017] In the above technical solution, the engineering machinery wheel device also includes: a first support assembly, which is rotatably connected to the first shaft; a second support assembly, which is arranged on the side of the flange facing the third wheel and is rotatably connected to the connecting sleeve; a third support assembly, which is arranged on the side of the third wheel facing the second wheel and is rotatably connected to the second shaft.

[0018] In this technical solution, a first support assembly corresponding to the first wheel, a second support assembly corresponding to the second wheel, and a third support assembly corresponding to the third wheel are provided to form a rotational connection with the first shaft, the connecting sleeve, and the second shaft, respectively, and provide support. When assembled on an engineering machine, the first support assembly, the second support assembly, and the third support assembly can be connected to the body of the engineering machine.

[0019] In the above technical scheme, the first support assembly includes a first bearing seat, in which a first bearing is arranged, and the first bearing seat is sleeved on the first shaft; the second support assembly includes a second bearing seat, in which a second bearing is arranged, and the second bearing seat is sleeved on the connecting shaft sleeve; the third support assembly includes a third bearing seat, in which a third bearing is arranged, and the third bearing seat is sleeved on the second shaft; wherein the first bearing seat, the second bearing seat and the third bearing seat can be connected to the frame support plate of the engineering machinery.

[0020] In this technical solution, the first support assembly includes a first bearing seat with a first bearing installed therein, which is sleeved on the first shaft to form a rotational support for the first shaft; the second support assembly includes a second bearing seat with a second bearing installed therein, which is sleeved on the connecting sleeve to form a rotational support for the connecting sleeve; the third support assembly includes a third bearing seat with a third bearing installed therein, which is sleeved on the second shaft to provide rotational support for the second shaft. When assembled on engineering machinery, frame support plates corresponding to the first bearing seat, the second bearing and the third bearing seat can be respectively provided to connect with the first bearing seat, the second bearing and the third bearing seat to achieve installation and fixation.

[0021] In the above technical solution, an inflation connector is provided on the flange for connecting the inflation system; an inflation channel interconnected with each other is provided in the connecting sleeve and the second shaft, and the inflation channel is connected to the inflation connector and the tire air pipe to centrally inflate the first wheel, the second wheel and the third wheel.

[0022] In this technical solution, an inflation joint is provided on the flange, and an inflation channel that is interconnected is provided in the connecting sleeve and the second shaft to be connected to the inflation joint. The first wheel, the second wheel, and the third wheel can be connected to the inflation channel through a tire air connection pipe, so that when the inflation joint is connected to the inflation system, the three wheels can be inflated collectively, which is conducive to simplifying the inflation operation process and improving the inflation efficiency.

[0023] In the above technical solution, the wheel assembly also includes: a first brake, connected to the side of the first bearing seat facing the first wheel, a first brake drum matching the first brake is provided in the first wheel, and the first brake drum is fixedly connected to the first shaft via a first locking nut; a second brake, connected to the side of the third bearing seat facing the third wheel, a second brake drum matching the second brake is provided in the third wheel, and the second brake drum is fixedly connected to the third shaft via a second locking nut.

[0024] In this technical solution, a first brake and a second brake are provided corresponding to the first wheel and the third wheel to respectively perform braking operations on the first wheel and the third wheel. Specifically, the first brake is fixedly connected to the first bearing seat and is provided corresponding to the first brake drum of the first wheel; the first brake drum is fixedly connected to the first shaft through the first locking nut, and when the first shaft rotates, the first brake drum rotates with the first wheel, and the first brake and the first brake drum cooperate to reduce the rotation speed of the first wheel to achieve braking. Similarly, the second brake is fixedly connected to the third bearing seat and is provided corresponding to the second brake drum of the third wheel; the second brake drum is fixedly connected to the third shaft through the second locking nut, and when the second shaft rotates, the second brake drum rotates with the third wheel, and the second brake and the second brake drum cooperate to reduce the rotation speed of the third wheel to achieve braking.

[0025] In the above technical solution, the engineering machinery wheel device also includes a transmission mechanism, which is connected to the coupling mechanism and is used to connect the drive device; wherein the transmission mechanism includes: a sprocket mechanism, which is arranged between the second wheel and the third wheel, the driven sprocket of the sprocket mechanism is connected to the second shaft, and the driving sprocket of the sprocket mechanism is used to connect the output end of the drive device.

[0026] In this technical solution, a transmission mechanism connected to the coupling mechanism is provided, so that when the transmission mechanism is installed on the engineering machinery, it is connected to the driving device of the engineering machinery through the transmission mechanism to form a driving wheel device; the transmission mechanism obtains power from the driving device to drive the coupling mechanism and the wheels to rotate, thereby driving the engineering machinery to travel and realizing all-wheel drive. The transmission mechanism specifically includes a sprocket mechanism, and a sprocket mechanism is provided between the second wheel and the third wheel to form a transmission connection with the second shaft and the driven wheel of the sprocket mechanism. When the transmission mechanism is installed on the engineering machinery, the driving sprocket of the sprocket mechanism can be connected to the output end of the driving device of the engineering machinery to form a chain drive, thereby transmitting power to the second shaft, thereby driving the three wheels to rotate. Among them, the second shaft extends from the third wheel to the second wheel, and the space is relatively sufficient, which is convenient for connecting with the driven sprocket.

[0027] In the above technical solution, a transmission connection is formed between the driven sprocket and the second shaft through spline matching.

[0028] In this technical solution, the driven sprocket and the second shaft form a spline match, for example, the outer wall of the second shaft is provided with a spline, and the inner wall of the driven sprocket is provided with a corresponding spline groove, which forms a match with the spline, so that a transmission connection is formed between the driven sprocket and the second shaft, and power is transmitted to the second shaft through chain transmission. The spline match has a strong load-bearing capacity and is conducive to large torque transmission.

[0029] A road roller is provided in an embodiment of the second aspect of the present invention, comprising: a road roller body; and at least one set of engineering machinery wheel devices according to any one of the embodiments of the first aspect, connected to the road roller body.

[0030] According to an embodiment of the second aspect of the present invention, a road roller includes a road roller body and an engineering machinery wheel device according to any one of the embodiments of the first aspect. The road roller body is the main body of the road roller, and the engineering machinery wheel device is connected to the road roller body, and can be used as a driving wheel device or a driven wheel device of the road roller body. When used as a driving wheel device, the coupling mechanism of the engineering machinery wheel device can be connected to the driving device of the road roller body through a transmission mechanism, so as to obtain power through the driving device and transmit it to the coupling mechanism, so that the driving wheel rotates, thereby driving the road roller body to travel, and all-wheel drive can be achieved. Among them, each wheel of the engineering machinery wheel device can be disassembled separately, which is convenient to operate.

[0031] It should be noted that the roller in this solution can be a full-tire roller, such as a nine-tire roller with four front and five rear wheels, or an eleven-tire roller with five front and six rear wheels. Of course, it can also be a roller with only tires as driving wheels, such as a roller with steel wheels at the front and tires at the rear. In addition, the number of engineering machinery wheel devices can be one or more groups. For example, two groups of engineering machinery wheel devices can be arranged side by side to form a six-wheel drive form, or one group of engineering machinery wheel devices and one group of two wheel groups can be arranged to form a five-wheel drive form.

[0032] The roller in this scheme adopts an engineering machinery wheel device to improve the wheel disassembly method, so that each wheel can be disassembled and assembled separately, avoiding mutual interference between wheels during the disassembly and assembly process, effectively simplifying the operation process of wheel disassembly and maintenance, reducing the workload of manual operation, greatly shortening the time required for maintenance operations, improving operating efficiency, and being able to achieve quick disassembly operations, which is beneficial to reducing the impact on construction operations.

[0033] In addition, the road roller in this solution also has all the beneficial effects of the engineering machinery wheel device in the embodiment of the first aspect mentioned above, which will not be repeated here.

[0034] Additional aspects and advantages of embodiments of the present invention will become apparent in the following description or may be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and / or additional aspects and advantages of the embodiments of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0036] Figure 1A cross-sectional view of a construction machinery wheel device according to an embodiment of the present invention is shown;

[0037] Figure 2 A cross-sectional view of a construction machinery wheel device according to an embodiment of the present invention is shown;

[0038] Figure 3 A cross-sectional view of a construction machinery wheel device according to an embodiment of the present invention is shown;

[0039] Figure 4 Shows Figure 3 A magnified view of part A;

[0040] Figure 5 A schematic block diagram of a road roller according to an embodiment of the present invention is shown.

[0041] in, Figures 1 to 5 The corresponding relationship between the reference numerals and component names is as follows:

[0042] 1 Engineering machinery wheel device, 11 Wheel assembly, 111 First wheel, 1111 First brake drum, 112 Second wheel, 113 Third wheel, 1131 Second brake drum, 114 First brake, 115 Second brake, 1161 First locking nut, 1162 Second locking nut, 12 Coupling mechanism, 121 First shaft, 122 Adapter, 1221 Flange, 1222 Connecting sleeve, 123 Second shaft, 1231 Spline, 124 Universal coupling, 13 Transmission mechanism, 131 Driving sprocket, 132 Driven sprocket , 1321 spline groove, 133 transmission chain, 141 first support assembly, 1411 first bearing seat, 1412 first bearing, 142 second support assembly, 1421 second bearing seat, 1422 second bearing, 143 third support assembly, 1431 third bearing seat, 1432 third bearing, 151 inflation joint, 152 first inflation channel, 153 second inflation channel, 161 stop washer, 162 spacer, 163 third locking nut, 2 roller, 21 roller body, 211 frame support plate, 22 drive device. DETAILED DESCRIPTION

[0043] In order to more clearly understand the above-mentioned purposes, features and advantages in the embodiments of the present invention, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0044] In the following description, many specific details are set forth to facilitate a full understanding of the embodiments according to the present invention. However, the embodiments of the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0045] Refer to the following Figures 1 to 5 The following describes a construction machinery wheel device and a road roller according to some embodiments of the present invention.

[0046] It should be noted that the engineering machinery wheel device of the present invention can be applied to various engineering machinery such as road rollers. In the following embodiments 1 to 6, the engineering machinery wheel device of some embodiments of the present invention is described by taking the application to road rollers as an example.

[0047] Embodiment 1

[0048] This embodiment provides an engineering machinery wheel device 1, which is applied to a road roller. Figure 1 As shown, the engineering machinery wheel device 1 includes a wheel assembly 11 and a coupling mechanism 12 .

[0049] The wheel assembly 11 includes three wheels arranged in sequence along the axial direction: a first wheel 111, a second wheel 112, and a third wheel 113. The coupling mechanism 12 arranged along the axial direction is arranged on the inner side of the three wheels and is respectively connected to the first wheel 111, the second wheel 112, and the third wheel 113. The coupling mechanism 12 is connected in series with the three wheels and can transmit power to the three wheels at the same time to realize all-wheel drive.

[0050] The coupling mechanism 12 is a split structure composed of a plurality of detachably connected structures, and different positions on the coupling mechanism 12 correspond to different wheels. Among them, the portion of the coupling mechanism 12 corresponding to the second wheel 112 is detachable. When the second wheel 112 needs to be replaced, the portion of the coupling mechanism 12 corresponding to the second wheel 112 can be removed first, and then the second wheel 112 can be disassembled and assembled. Furthermore, the second wheel 112 can be moved and taken out in the radial direction, and the replacement operation of the second wheel 112 can be completed without disassembling the first wheel 111 or the third wheel 113 located on the side. When the first wheel 111 or the third wheel 113 needs to be replaced, the corresponding disassembly and assembly operation can be performed directly from the side, and the first wheel 111 or the third wheel 113 can be taken out in the axial direction, so that the three wheels can be disassembled and assembled separately.

[0051] It should be noted that the engineering machinery wheel device 1 in this embodiment can be used as a driving wheel device, connected to the driving device of the engineering machinery through the transmission mechanism 13 to obtain power, drive the coupling mechanism 12 and the wheels to rotate, thereby driving the engineering machinery to travel and realize all-wheel drive. Of course, the engineering machinery wheel device 1 can also be used as a driven wheel device.

[0052] The engineering machinery wheel device 1 in this embodiment improves the wheel disassembly method, especially the disassembly operation of the wheel located in the middle. Each wheel can be disassembled and assembled separately, which can avoid mutual interference between the wheels during the disassembly and assembly process, effectively simplifying the operation process of wheel disassembly and assembly maintenance, reducing the workload of manual operation, greatly shortening the time required for maintenance operations, improving operating efficiency, and realizing quick disassembly operations, which is beneficial to reducing the impact on construction operations.

[0053] Embodiment 2

[0054] This embodiment provides a construction machinery wheel device 1, which is further improved on the basis of the first embodiment.

[0055] like Figure 1 and Figure 2 As shown, the coupling mechanism 12 specifically includes a first shaft 121, a second shaft 123, an adapter 122 and a universal coupling 124. The first shaft 121 is arranged corresponding to the first wheel 111, and the first shaft 121 extends into the first wheel 111 and is transmission-connected to the first wheel 111; the second shaft 123 is arranged corresponding to the third wheel 113, and the second shaft 123 extends into the third wheel 113 and is transmission-connected to the third wheel 113; the adapter 122 and the universal coupling 124 are arranged corresponding to the second wheel 112, the adapter 122 is fixedly connected to the second wheel 112, one end of the adapter 122 is transmission-connected to the second shaft 123, the other end of the adapter 122 is fixedly connected to the universal coupling 124, and one end of the universal coupling 124 away from the adapter 122 is transmission-connected to the first shaft 121, so as to realize the series connection of the first wheel 111, the second wheel 112 and the third wheel 113. When the transmission mechanism 13 transmits power, it can drive the three wheels to rotate simultaneously.

[0056] Both ends of the universal coupling 124 are detachably connected, so that when the second wheel 112 needs to be disassembled and assembled, the universal coupling 124 can be removed to provide space for the disassembly and assembly of the second wheel 112, so that the second wheel 112 can be moved and removed in the radial direction, thereby avoiding mutual interference with the first wheel 111 or the third wheel 113. The axial dimension of the universal coupling 124 is larger than the axial dimension of the tire, so as to ensure that after the universal coupling 124 is removed, sufficient space can be reserved for the movement of the second wheel 112 to prevent the second wheel 112 from being blocked.

[0057] Furthermore, if Figure 1 and Figure 2 As shown, the adapter 122 specifically includes a flange 1221 and a connecting sleeve 1222. The flange 1221 is fixedly connected to the second wheel 112 to serve as a connection base; one side of the flange 1221 is connected to the universal coupling 124, and the other side is connected to the connecting sleeve 1222. The end of the second shaft 123 close to the second wheel 112 extends into the connecting sleeve 1222 and cooperates with the connecting sleeve 1222 to form a fixed connection for power transmission.

[0058] Embodiment 3

[0059] This embodiment provides a construction machinery wheel device 1, which is further improved on the basis of the second embodiment.

[0060] like Figures 1 to 3 As shown, the engineering machinery wheel device 1 also includes a first support assembly 141, a second support assembly 142 and a third support assembly 143. The first support assembly 141 corresponds to the first wheel 111 and is transmission-connected to the first shaft 121; the second support assembly 142 corresponds to the second wheel 112 and is rotationally connected to the connecting sleeve 1222; the third support assembly 143 corresponds to the third wheel 113 and is rotationally connected to the second shaft 123. The first support assembly 141, the second support assembly 142 and the third support assembly 143 provide support to the first shaft 121, the connecting sleeve 1222 and the second shaft 123 respectively. When assembled on a road roller, the first support assembly 141, the second support assembly 142 and the third support assembly 143 can be connected to the road roller body 21.

[0061] Furthermore, if Figure 2 and Figure 3 As shown, the first support assembly 141 includes a first bearing seat 1411 with a first bearing 1412 therein, and the first bearing 1412 is sleeved on the first shaft 121 to provide rotational support for the first shaft 121; a spacer 162 is provided at one end of the first bearing seat 1411 away from the first bearing 1412, and is fixed to the first bearing seat 1411 through a stop washer 161 and a third locking nut 163. The third support assembly 143 includes a third bearing seat 1431 with a third bearing 1432 therein, and the third bearing 1432 is sleeved on the second shaft 123 to provide rotational support for the second shaft 123. A spacer 162 is provided at one end of the third bearing seat 1431 away from the third bearing 1432, and is fixed to the third bearing seat 1431 through a stop washer 161 and a third locking nut 163.

[0062] like Figure 3 and Figure 4As shown, the second support assembly 142 includes a second bearing seat 1421 with a second bearing 1422 therein, and the second bearing 1422 is sleeved on the connecting sleeve 1222 to form a rotational support for the connecting sleeve 1222; the second shaft 123 passes through the connecting sleeve 1222, and the second shaft 123 is fixedly connected to the connecting sleeve 1222 through a stop washer 161 and a third locking nut 163.

[0063] A frame support plate 211 corresponding to the first bearing seat 1411, the second bearing seat 1421 and the third bearing seat 1431 is provided on the roller body 21. The first bearing seat 1411, the second bearing seat 1421 and the third bearing seat 1431 are respectively fixedly connected to the corresponding frame support plate 211 to realize the installation and fixation of the engineering machinery wheel device 1 on the roller body 21.

[0064] Embodiment 4

[0065] This embodiment provides a construction machinery wheel device 1, which is further improved on the basis of the third embodiment.

[0066] like Figure 1 , Figure 3 and Figure 4 As shown, an air charging connector 151 is provided on the flange 1221 for connecting to an external air charging system. A first air charging channel 152 is provided in the connecting sleeve 1222, and a second air charging channel 153 is provided in the second shaft 123; the first air charging channel 152 is connected to the air charging connector 151 and the second air charging channel 153 to form an integral air charging channel. The first wheel 111, the second wheel 112 and the third wheel 113 can be connected to the air charging channel through a tire air connection pipe.

[0067] When the inflation connector 151 is connected to the inflation system, air can be inflated into the inflation channel through the inflation system to achieve centralized inflation of the three wheels, which is beneficial to simplify the inflation operation process and improve the inflation efficiency.

[0068] Embodiment 5

[0069] This embodiment provides a construction machinery wheel device 1, which is further improved on the basis of the third embodiment.

[0070] like Figure 1 and Figure 2 As shown, the wheel assembly 11 further includes a first brake 114 and a second brake 115, which are respectively arranged corresponding to the first wheel 111 and the third wheel 113, so as to perform braking operations on the first wheel 111 and the third wheel 113 respectively.

[0071] Specifically, the first wheel 111 is provided with a first brake drum 1111, which is fixedly connected to the first shaft 121 through a first locking nut 1161; the first brake 114 is fixedly connected to the first bearing seat 1411, and is arranged corresponding to the first brake drum 1111. When the first shaft 121 rotates, the first brake drum 1111 rotates together with the first wheel 111, and the first brake 114 can form a match with the first brake drum 1111 to reduce the rotation speed of the first wheel 111 and achieve braking.

[0072] Similarly, the third wheel 113 is provided with a second brake drum 1131, which is fixedly connected to the third shaft through a second locking nut 1162; the second brake 115 is fixedly connected to the third bearing seat 1431 and is arranged corresponding to the second brake drum 1131. When the second shaft 123 rotates, the second brake drum 1131 rotates together with the third wheel 113, and the second brake 115 can form a match with the second brake drum 1131 to reduce the rotation speed of the third wheel 113 and achieve braking.

[0073] Embodiment 6

[0074] This embodiment provides a construction machinery wheel device 1, which is further improved on the basis of the second embodiment.

[0075] like Figures 1 to 3 As shown, the transmission mechanism includes a sprocket mechanism, which specifically includes a driving sprocket 131, a driven sprocket 132 and a transmission chain 133, and the driving sprocket 131 and the driven sprocket 132 form a chain drive through the transmission chain 133. The sprocket mechanism is specifically arranged between the second wheel 112 and the third wheel 113, and the driven sprocket 132 is sleeved on the second shaft 123 and forms a transmission connection with the second shaft 123. The driving sprocket 131 can be connected to the output end of the driving device 22 of the roller, so that a chain drive is formed between the driving device 22 and the second shaft 123, and power is transmitted to the second shaft 123, thereby driving the three wheels to rotate. Among them, the second shaft 123 extends from the third wheel 113 to the second wheel 112, and the space is relatively sufficient, which is convenient for connecting with the driven sprocket 132.

[0076] Furthermore, if Figure 3 As shown, the outer wall of the second shaft 123 is provided with a spline 1231, and the inner wall of the driven sprocket 132 is provided with a corresponding spline groove 1321, which cooperates with the spline 1231, so that a transmission connection is formed between the driven sprocket 132 and the second shaft 123, and power is transmitted to the second shaft 123 through chain transmission. The spline 1231 has a strong carrying capacity, which is conducive to large torque transmission.

[0077] A specific embodiment of the above-mentioned engineering machinery wheel device 1 is provided below:

[0078] The engineering machinery wheel device 1 in this embodiment is applied to a road roller. Figures 1 to 5 As shown, the engineering machinery wheel device 1 includes a wheel assembly 11 , a coupling mechanism 12 , a transmission mechanism 13 , a first support assembly 141 , a second support assembly 142 and a third support assembly 143 .

[0079] like Figure 1 As shown, the wheel assembly 11 includes three wheels arranged in sequence along the axial direction: a first wheel 111, a second wheel 112 and a third wheel 113. The coupling mechanism 12 arranged along the axial direction is arranged on the inner side of the three wheels, and is respectively connected to the first wheel 111, the second wheel 112 and the third wheel 113 in transmission connection. The transmission mechanism 13 is connected to the coupling mechanism 12 and can be connected to the driving device 22 of the roller to transmit the output power of the driving device 22 to the coupling mechanism 12 through the transmission mechanism 13, drive the coupling mechanism 12 and the wheels to rotate, and thus drive the engineering machinery to travel. Among them, the coupling mechanism 12 is connected in series with three wheels, and can transmit power to the three wheels at the same time to realize all-wheel drive.

[0080] like Figure 1 and Figure 2 As shown, the coupling mechanism 12 specifically includes a first shaft 121, a second shaft 123, an adapter 122 and a universal coupling 124, and the adapter 122 includes a flange 1221 and a connecting sleeve 1222. The first shaft 121 is arranged corresponding to the first wheel 111, and the first shaft 121 extends into the first wheel 111 and is transmission-connected with the first wheel 111; the second shaft 123 is arranged corresponding to the third wheel 113, and the second shaft 123 extends into the third wheel 113 and is transmission-connected with the third wheel 113; the flange 1221 is fixedly connected to the second wheel 112, one side of the flange 1221 is connected to the universal coupling 124, and the other side is connected to the connecting sleeve 1222. The end of the second shaft 123 close to the second wheel 112 extends into the connecting sleeve 1222, and cooperates with the connecting sleeve 1222 to form a fixed connection, thereby realizing the series connection of the first wheel 111, the second wheel 112 and the third wheel 113 for power transmission. When the transmission mechanism 13 transmits power, it can drive three wheels to rotate simultaneously, thus achieving all-wheel drive.

[0081] Both ends of the universal coupling 124 are detachably connected, so that when the second wheel 112 needs to be disassembled and assembled, the universal coupling 124 can be removed to provide space for the disassembly and assembly of the second wheel 112, so that the second wheel 112 can be moved and taken out in the radial direction, thereby avoiding mutual interference with the first wheel 111 or the third wheel 113. The axial dimension of the universal coupling 124 is larger than the axial dimension of the tire, so as to ensure that after the universal coupling 124 is removed, sufficient space can be reserved for the movement of the second wheel 112 to prevent obstruction to the second wheel 112. When the first wheel 111 or the third wheel 113 is replaced, the corresponding disassembly and assembly operation can be directly performed from the side, and the first wheel 111 or the third wheel 113 can be taken out in the axial direction, so that the three wheels can be disassembled and assembled separately.

[0082] like Figures 1 to 3 As shown, the first support assembly 141 corresponds to the first wheel 111 and is transmission-connected to the first shaft 121; the second support assembly 142 corresponds to the second wheel 112 and is rotationally connected to the connecting sleeve 1222; the third support assembly 143 corresponds to the third wheel 113 and is rotationally connected to the second shaft 123. The first support assembly 141, the second support assembly 142 and the third support assembly 143 provide support to the first shaft 121, the connecting sleeve 1222 and the second shaft 123 respectively.

[0083] Specifically, Figure 2 and Figure 3 As shown, the first support assembly 141 includes a first bearing seat 1411 with a first bearing 1412 therein, and the first bearing 1412 is sleeved on the first shaft 121 to provide rotational support for the first shaft 121; a spacer 162 is provided at one end of the first bearing seat 1411 away from the first bearing 1412, and is fixed to the first bearing seat 1411 through a stop washer 161 and a third locking nut 163. The third support assembly 143 includes a third bearing seat 1431 with a third bearing 1432 therein, and the third bearing 1432 is sleeved on the second shaft 123 to provide rotational support for the second shaft 123. A spacer 162 is provided at one end of the third bearing seat 1431 away from the third bearing 1432, and is fixed to the third bearing seat 1431 through a stop washer 161 and a third locking nut 163.

[0084] like Figure 3 and Figure 4 As shown, the second support assembly 142 includes a second bearing seat 1421 with a second bearing 1422 therein, and the second bearing 1422 is sleeved on the connecting sleeve 1222 to form a rotational support for the connecting sleeve 1222; the second shaft 123 passes through the connecting sleeve 1222, and the second shaft 123 is fixedly connected to the connecting sleeve 1222 through a stop washer 161 and a third locking nut 163.

[0085] A frame support plate 211 corresponding to the first bearing seat 1411, the second bearing seat 1421 and the third bearing seat 1431 is provided on the roller body 21. The first bearing seat 1411, the second bearing seat 1421 and the third bearing seat 1431 are respectively fixedly connected to the corresponding frame support plate 211 to realize the installation and fixation of the engineering machinery wheel device 1 on the roller body 21.

[0086] like Figure 1 , Figure 3 and Figure 4 As shown, an air charging connector 151 is provided on the flange 1221 for connecting to an external air charging system. A first air charging channel 152 is provided in the connecting sleeve 1222, and a second air charging channel 153 is provided in the second shaft 123; the first air charging channel 152 is connected to the air charging connector 151 and the second air charging channel 153 to form an integral air charging channel. The first wheel 111, the second wheel 112 and the third wheel 113 can be connected to the air charging channel through a tire air connection pipe. When the air charging connector 151 is connected to the air charging system, air can be charged into the air charging channel through the air charging system to realize centralized air charging of the three wheels, which is conducive to simplifying the air charging operation process and improving the air charging efficiency.

[0087] like Figure 1 and Figure 2 As shown, the wheel assembly 11 further includes a first brake 114 and a second brake 115, which are respectively arranged corresponding to the first wheel 111 and the third wheel 113, so as to perform braking operations on the first wheel 111 and the third wheel 113 respectively.

[0088] Specifically, the first wheel 111 is provided with a first brake drum 1111, which is fixedly connected to the first shaft 121 through a first locking nut 1161; the first brake 114 is fixedly connected to the first bearing seat 1411, and is arranged corresponding to the first brake drum 1111. When the first shaft 121 rotates, the first brake drum 1111 rotates together with the first wheel 111, and the first brake 114 can form a match with the first brake drum 1111 to reduce the rotation speed of the first wheel 111 and achieve braking.

[0089] Similarly, the third wheel 113 is provided with a second brake drum 1131, which is fixedly connected to the third shaft through a second locking nut 1162; the second brake 115 is fixedly connected to the third bearing seat 1431 and is arranged corresponding to the second brake drum 1131. When the second shaft 123 rotates, the second brake drum 1131 rotates together with the third wheel 113, and the second brake 115 can form a match with the second brake drum 1131 to reduce the rotation speed of the third wheel 113 and achieve braking.

[0090] like Figures 1 to 3As shown, the transmission mechanism includes a sprocket mechanism, and the sprocket mechanism specifically includes a driving sprocket 131, a driven sprocket 132 and a transmission chain 133, and the driving sprocket 131 and the driven sprocket 132 form a chain drive through the transmission chain 133. The sprocket mechanism is specifically arranged between the second wheel 112 and the third wheel 113, and the driven sprocket 132 is sleeved on the second shaft 123 and forms a transmission connection with the second shaft 123. The driving sprocket 131 can be connected to the output end of the driving device 22 of the roller, so that a chain drive is formed between the driving device 22 and the second shaft 123, and power is transmitted to the second shaft 123, thereby driving the three wheels to rotate. Among them, as Figure 3 As shown, the outer wall of the second shaft 123 is provided with a spline 1231, and the inner wall of the driven sprocket 132 is provided with a corresponding spline groove 1321, which cooperates with the spline 1231, so that a transmission connection is formed between the driven sprocket 132 and the second shaft 123, and power is transmitted to the second shaft 123 through chain transmission. The spline 1231 has a strong carrying capacity, which is conducive to large torque transmission.

[0091] The engineering machinery wheel device 1 in this embodiment can realize all-wheel drive. By improving the wheel disassembly method, especially improving the disassembly operation of the wheel located in the middle, each wheel can be disassembled and assembled separately, which can avoid mutual interference between wheels during disassembly and assembly, effectively simplify the operation process of wheel disassembly and maintenance, reduce the workload of manual operation, greatly shorten the time required for maintenance operation, improve operation efficiency, realize quick disassembly operation, and help reduce the impact on construction operations. In addition, it is also possible to realize centralized inflation of multiple wheels, thereby improving inflation efficiency.

[0092] Embodiment 7

[0093] This embodiment provides a road roller 2, such as Figure 5 As shown, the road roller 2 includes a road roller body 21 and the engineering machinery wheel device 1 in any of the above embodiments.

[0094] like Figures 1 to 5 As shown, the roller body 21 is the main body of the roller 2; the engineering machinery wheel device 1 is connected to the roller body 21, and can be used as a driving wheel device or a driven wheel device of the roller body 21. Among them, each wheel of the engineering machinery wheel device 1 can be disassembled separately, which is convenient to operate. When used as a driving wheel device, the engineering machinery wheel device 1 also includes a transmission mechanism 13, which is connected to the driving device 22 of the roller body 21 to obtain power through the driving device 22 and transmit it to the coupling mechanism 12; the coupling mechanism 12 drives the driving wheel to rotate to drive the roller body 21 to travel.

[0095] It should be noted that the roller 2 in this embodiment can be a full-tire roller, such as a nine-tire roller with four front and five rear wheels, or an eleven-tire roller with five front and six rear wheels. Of course, it can also be a roller with only tires as wheels, such as a roller with steel wheels at the front and tires at the rear. In addition, the number of engineering machinery wheel devices 1 can be one or more groups. For example, two groups of engineering machinery wheel devices 1 can be arranged side by side to form a six-wheel drive form, or one group of engineering machinery wheel devices 1 and a group of two wheel group structures can be arranged to form a five-wheel drive form.

[0096] The roller 2 in this embodiment improves the wheel disassembly method so that each wheel can be disassembled and assembled individually, avoiding mutual interference between the wheels during the disassembly and assembly process, effectively simplifying the operation process of wheel disassembly and assembly maintenance, reducing the workload of manual operation, greatly shortening the time required for maintenance operations, improving operating efficiency, and being able to achieve quick disassembly operations, which is beneficial to reducing the impact on construction operations.

[0097] In addition, the road roller 2 in this embodiment also has all the beneficial effects of the engineering machinery wheel device 1 in any of the above embodiments, which will not be described in detail here.

[0098] A specific embodiment of the present application is provided below:

[0099] A tire roller rear wheel quick release structure, a brake is installed on the first bearing seat to achieve braking; a bearing and a spacer are installed on the first shaft, fixed to the first bearing seat through a stop washer and a locking nut, and the tire is fixed to the first shaft through a brake drum and a locking nut. Similarly, the second shaft is installed in the same way.

[0100] The first shaft and the flange connecting plate are connected and driven through a universal coupling; the flange connecting plate, the tire, and the connecting sleeve are fastened by bolts; the bearing is installed on the connecting sleeve, and the connecting sleeve, the bearing, the second bearing seat, and the spacer are fastened to the second shaft through a stop washer and a locking nut, and the torque is transmitted through a spline; the entire rear wheel structure connected by the first bearing seat, the second bearing seat, and the third bearing seat is fixed to the frame support plate, and all-wheel drive is achieved through a sprocket and a universal coupling.

[0101] The centralized tire inflation system connects the inflation joint through the air pipe on the first shaft, connects the connecting shaft sleeve and the air channel in the second shaft, and the tire air pipe connects the air channel to achieve centralized inflation of all wheels.

[0102] The above, in combination with the accompanying drawings, describes in detail the technical solutions of some embodiments of the present invention, improves the wheel disassembly method so that each wheel can be disassembled and assembled individually, avoiding mutual interference between wheels during disassembly and assembly, effectively simplifying the operation process of wheel disassembly and maintenance, reducing the workload of manual operations, significantly shortening the time required for maintenance operations, improving operating efficiency, and enabling quick disassembly operations, which is beneficial to reducing the impact on construction operations.

[0103] In the embodiments of the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0104] In the description of the embodiments of the present invention, it should be understood that the directions or positional relationships indicated by terms such as “up”, “down”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be understood as a limitation on the technical solution of the present application.

[0105] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0106] The above are only preferred embodiments of the present invention and are not intended to limit the technical solution of the present application. For those skilled in the art, the technical solution of the present application may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the technical solution of the present application shall be included in the protection scope of the present application.

Claims

1. A construction machinery wheel device (1), characterized in that: include: A wheel assembly (11) comprising a first wheel (111), a second wheel (112), and a third wheel (113) which are sequentially arranged at intervals along an axial direction; a coupling mechanism (12) arranged along the axial direction of the wheel assembly (11) and respectively connected in driving relationship to the first wheel (111), the second wheel (112) and the third wheel (113); Wherein, the portion of the coupling mechanism (12) corresponding to the second wheel (112) is a detachable structure, so that the second wheel (112) can be detached separately; The coupling mechanism (12) comprises: A first shaft (121) drivingly connected to the first wheel (111); An adapter (122) fixedly connected to the second wheel (112); A second shaft (123) is drivingly connected to the third wheel (113) and one end of the adapter (122); A universal coupling (124), wherein two ends of the universal coupling (124) are respectively detachably connected to the first shaft (121) and the other end of the adapter (122); Wherein, at least a portion of the universal coupling (124) extends into the second wheel (112), and an axial dimension of the universal coupling (124) is greater than an axial dimension of the second wheel (112); The adapter (122) comprises: A flange (1221) fixedly connected to the second wheel (112), wherein a side of the flange (1221) facing the first wheel (111) is connected to the universal coupling (124); A connecting sleeve (1222) connected to a side of the flange (1221) facing the third wheel (113); Wherein, one end of the second shaft (123) close to the second wheel (112) extends into the connecting shaft sleeve (1222) and is fixedly connected to the connecting shaft sleeve (1222).

2. The engineering machinery wheel device (1) according to claim 1, characterized in that: Also includes: A first support assembly (141) rotatably connected to the first shaft (121); A second supporting assembly (142) is disposed on a side of the flange (1221) facing the third wheel (113) and is rotatably connected to the connecting shaft sleeve (1222); The third support assembly (143) is disposed on a side of the third wheel (113) facing the second wheel (112) and is rotatably connected to the second shaft (123).

3. The engineering machinery wheel device (1) according to claim 2, characterized in that: The first supporting assembly (141) comprises a first bearing seat (1411), wherein a first bearing (1412) is provided in the first bearing seat (1411) and is sleeved on the first shaft (121); The second supporting assembly (142) comprises a second bearing seat (1421), wherein a second bearing (1422) is provided in the second bearing seat (1421) and sleeved on the connecting shaft sleeve (1222); The third support assembly (143) comprises a third bearing seat (1431), wherein a third bearing (1432) is provided inside the third bearing seat (1431) and is sleeved on the second shaft (123); The first bearing seat (1411), the second bearing seat (1421) and the third bearing seat (1431) can be connected to a frame support plate (211) of an engineering machine.

4. The engineering machinery wheel device (1) according to claim 3, characterized in that: The flange (1221) is provided with an inflation connector (151) for connecting to an inflation system; The connecting shaft sleeve (1222) and the second shaft (123) are provided with mutually communicating inflation passages, and the inflation passages are connected to the inflation joint (151) and the tire air connection pipe so as to centrally inflate the first wheel (111), the second wheel (112) and the third wheel (113).

5. The engineering machinery wheel device (1) according to claim 3, characterized in that: The wheel assembly (11) further comprises: A first brake (114) is connected to a side of the first bearing seat (1411) facing the first wheel (111); a first brake drum (1111) matching the first brake (114) is provided in the first wheel (111); the first brake drum (1111) is fixedly connected to the first shaft (121) via a first locking nut (1161); The second brake (115) is connected to a side of the third bearing seat (1431) facing the third wheel (113); a second brake drum (1131) matching with the second brake (115) is provided in the third wheel (113); the second brake drum (1131) is fixedly connected to the third shaft via a second locking nut (1162).

6. The engineering machinery wheel device (1) according to claim 1, characterized in that: It also includes a transmission mechanism (13) connected to the coupling mechanism (12) and used for connecting to a driving device (22); The transmission mechanism (13) comprises a sprocket mechanism, which is arranged between the second wheel (112) and the third wheel (113); a driven sprocket (132) of the sprocket mechanism is connected to the second shaft (123); and a driving sprocket (131) of the sprocket mechanism is used to connect to an output end of the drive device (22).

7. The engineering machinery wheel device (1) according to claim 6, characterized in that: The driven sprocket (132) and the second shaft (123) are connected in a transmission connection through spline matching.

8. A road roller (2), characterized in that: include: Road roller body (21); At least one set of engineering machinery wheel devices (1) according to any one of claims 1 to 7 is connected to the road roller body (21).

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