Connecting device for the output shaft of a drive member, drive device and caterpillar transport equipment

Abstract

The application relates to the technical field of engineering machinery, and provides a connecting device of an output shaft of a driving piece, a driving device and a tracked transport equipment. The driving piece is arranged on a vehicle frame, the connecting device comprises a first set and a second set, the first set is connected with the vehicle frame, and the output shaft is located in the first set; one end of the second set is rotatably arranged in the first set and connected with the output shaft, and the other end of the second set penetrates through the second set and is connected with a driving wheel. The connecting device of the output shaft of the driving piece, the driving device and the tracked transport equipment provided by the application can prolong the connecting length of the output shaft.

Description

Technical Field

[0001] This application relates to the field of engineering machinery technology, and in particular to a connecting device for the output shaft of a drive component, a drive device, and a tracked transport device. Background Technology

[0002] The transportation equipment is connected to the drive wheels through the output shaft of the drive component to achieve steering and movement. The drive component is generally manufactured according to relevant design and manufacturing standards, and the length of the output shaft is a standard length. However, when the installation space of the drive component is fixed, it is difficult to connect the output shaft to the drive wheels. Utility Model Content

[0003] In view of this, embodiments of this application aim to provide a connection device for the output shaft of a drive unit, a drive unit, and a tracked transport device, which can extend the connection length of the output shaft.

[0004] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0005] One embodiment of this application discloses a connection device for the output shaft of a drive component, wherein the drive component is disposed on a vehicle frame, and the connection device includes:

[0006] The first component is connected to the frame, and the output shaft is located within the first component.

[0007] The second assembly has one end rotatably disposed within the first assembly and connected to the output shaft, and the other end of the second assembly extends out of the second assembly and is connected to the drive wheel.

[0008] In one embodiment, the connecting device includes a bearing disposed between the first assembly and the second assembly.

[0009] In one embodiment, the connecting device includes a stop member sleeved on the outer periphery of the first kit for limiting the bearing along the axial direction of the output shaft.

[0010] In one embodiment, the outer periphery of the second kit is formed with a flange, the flange being used to engage with the stop to limit the bearing along the axial direction; and / or,

[0011] The connecting device includes a washer disposed on the end face of the stop member near the bearing along the axial direction; and / or,

[0012] The bearing is a tapered roller bearing.

[0013] In one embodiment, the first kit has a socket, and the second kit is inserted into the first kit through the socket. The connecting device includes a sealing ring disposed in the socket.

[0014] In one embodiment, the connecting device includes an end cap disposed on the second assembly for limiting the drive wheel along the axial direction of the output shaft.

[0015] In one embodiment, the outer periphery of the second kit is formed with a stepped portion, which is used to engage with the end cap to limit the drive wheel along the axial direction.

[0016] Another aspect of this application discloses a driving device, including a driving member and a connecting device in any of the above embodiments, wherein the connecting device is connected between the output shaft of the driving member and the driving wheel.

[0017] In one embodiment, the driving component is a hydraulic motor.

[0018] Another aspect of this application discloses a tracked transport device, including the drive device described in the above embodiments.

[0019] This application discloses a connection device for the output shaft of a drive component, a drive device, and a tracked transport device. The drive component is connected to the frame via a first assembly, with the output shaft located within the first assembly. One end of a second assembly is rotatably disposed within the first assembly and connected to the output shaft, while the other end of the second assembly extends out and connects to the drive wheel. On one hand, the second assembly allows for axial extension of the output shaft, thus solving the problem of the motor shaft being unable to connect to the drive wheel due to installation space limitations, without requiring modifications to the drive component itself. Furthermore, the use of an external connection allows for customization of the extension length according to different needs, offering good flexibility. On the other hand, by rotatably fitting the second assembly within the first assembly, the load-bearing force transmitted radially from the drive wheel to the second assembly can be transferred to the frame via the first assembly. This reduces damage to the output shaft and extends the service life of both the output shaft and the drive component. Attached Figure Description

[0020] Figure 1 A partial sectional view of the drive device, drive wheel, and frame provided in an embodiment of this application;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0022] Explanation of reference numerals in the attached figures

[0023] 100. Drive unit; 1. Drive component; 11. Output shaft; 2. Connecting device; 21. First assembly; 22. Second assembly; 22a. Flange; 22b. Stepped portion; 221. First connecting portion; 222. Second connecting portion; 23. Bearing; 24. Stop; 25. Washer; 26. Sealing ring; 27. Spacer; 28. End cap; 200. Drive wheel; 201. Mounting sleeve; 300. Frame. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific implementation should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0025] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. The terms "first," "second," etc., used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly including at least one feature. In the description of the embodiments of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] To better understand the connection device 2 of the output shaft 11 of the drive unit 1 provided in this application, the tracked transport equipment and the drive unit 100 will be described first.

[0027] One embodiment of this application provides a tracked transport device, including the drive unit 100 in the following embodiments.

[0028] The drive unit 100 can be mounted on the chassis frame 300.

[0029] Tracked transport equipment can improve its stability and adaptability to harsh terrains such as mountains by moving and turning through tracks.

[0030] For example, tracked transport equipment can be used for transporting materials to power grids on mountain roads, as well as for emergency repairs and rescue operations.

[0031] Another embodiment of this application provides a driving device 100, please refer to... Figure 1 and Figure 2 It includes a drive unit 1 and a connecting device 2 in any of the following embodiments.

[0032] It should be noted that the term "driving component 1" here refers to the driving wheel 200 and does not mean that it is always a "driving component" in the overall driving device 100. For example, the driving device 100 also includes a hydraulic pump, which is connected to the driving component 1 through a hydraulic pipeline. In this case, the driving component 1 is a "transmission component" or driving load relative to the hydraulic pump, while the hydraulic pump is a "driving component".

[0033] The drive unit 1 can be mounted on the chassis frame 300, and the output shaft 11 of the drive unit 1 is connected to the drive wheel 200 through the connecting device 2.

[0034] Here, drive wheel 200 refers to the driving wheel in track drive. Drive wheel 200 drives the track to rotate, which in turn drives other driven wheels to rotate.

[0035] It should be noted that the output shaft 11 is not only used to connect to the drive wheel 200, but can also be connected to other loads such as gears.

[0036] Another embodiment of this application provides a connecting device 2, please refer to [link to relevant documentation]. Figure 1 and Figure 2 The connecting device 2 includes a first assembly 21 and a second assembly 22. The first assembly 21 is connected to the frame 300, and the output shaft 11 is located inside the first assembly 21. One end of the second assembly 22 is rotatably disposed inside the first assembly 21 and connected to the output shaft 11, and the other end of the second assembly 22 extends out of the second assembly 22 and is connected to the drive wheel 200.

[0037] The second assembly 22 is rotatably disposed within the first assembly 21, meaning that the second assembly 22 can rotate around the axis of the output shaft 11 within the first assembly 21.

[0038] For example, the output shaft 11 can be connected to the second assembly 22 via splines or the like.

[0039] The connecting device 2 provided in this application embodiment is connected to the frame 300 through the first kit 21. The output shaft 11 of the drive component 1 is located inside the first kit 21, and one end of the second kit 22 is rotatably disposed inside the first kit 21 and connected to the output shaft 11. The other end of the second kit 22 protrudes from the second kit 22 and is connected to the drive wheel 200. On the one hand, the arrangement of the second kit 22 can extend the connection length of the output shaft 11 axially. In this way, without modifying the drive component 1 body, the problem that the output shaft 11 cannot be connected to the drive wheel 200 due to installation space and other reasons can be solved. Moreover, since the connection method of the external component is adopted, the extension length can be customized according to different needs, which is flexible. On the other hand, by rotatably fitting the second kit 22 inside the first kit 21, the load-bearing force transmitted radially from the drive wheel 200 to the second kit 22 can be transmitted to the frame 300 through the first kit 21. In this way, damage to the output shaft 11 can be reduced and the service life of the output shaft 11 and the drive component 1 can be extended.

[0040] The drive device 100 provided in this application has the advantages of the above-mentioned connecting device 2, which makes it have a long service life and good connection flexibility with the drive wheel 200.

[0041] The tracked transport equipment provided in this application, based on the advantages of the aforementioned drive device 100, has a long service life and high terrain adaptability.

[0042] In one embodiment, the driving component 1 is a hydraulic motor.

[0043] Here, a hydraulic motor is used to drive the drive wheel 200, eliminating the need for a reducer. This effectively solves the problems of overheating due to gear lubrication and insufficient braking capacity of the reducer, thus meeting the power requirements of harsh terrain such as mountains.

[0044] In one embodiment, the hydraulic motor is a low-speed, high-torque hydraulic motor. This further improves the adaptability to different terrains and the mobility stability of the tracked transport equipment.

[0045] In one embodiment, the driving component 1 is a hydraulic motor. By setting the connecting device 2, the problem that the output shaft 11 of the hydraulic motor is too short to be connected to the drive wheel 200 can be effectively solved. In addition, the setting of the connecting device 2 can also reduce the radial force transmitted to the output shaft 11 of the hydraulic motor.

[0046] In one embodiment, please refer to Figure 2 The connecting device 2 includes a bearing 23, which is disposed between the first assembly 21 and the second assembly 22.

[0047] The bearing 23 can be disposed radially between the first assembly 21 and the second assembly 22.

[0048] The inner ring of bearing 23 can be fitted onto the outer periphery of the second assembly 22 by means of a flat key, spline, flange or interference fit.

[0049] The outer ring of bearing 23 can be connected to the inner surface of the first assembly 21 by means of a flat key, spline, flange or interference fit.

[0050] Here, by setting a bearing 23 between the first assembly 21 and the second assembly 22, not only can the rotational resistance between the first assembly 21 and the second assembly 22 be reduced, but the radial force can also be better transmitted between the first assembly 21 and the second assembly 22, further reducing the damage of the radial force to the output shaft 11 and the drive component 1.

[0051] In one embodiment, bearing 23 can be a tapered roller bearing. This can improve the load-bearing capacity of the connecting device 2.

[0052] As an example, in one embodiment, please refer to Figure 2 A mounting sleeve 201 is formed inside the drive wheel 200. The end of the second assembly 22 away from the output shaft 11 along the axial direction can be installed in the mounting sleeve 201 by means of a flat key, spline, flange or interference fit, so as to improve the stability of the transmission.

[0053] In one embodiment, please refer to Figure 2 The connecting device 2 includes a stop 24, which is sleeved on the outer periphery of the first assembly 21 and is used to limit the bearing 23 along the axial direction of the output shaft 11.

[0054] For example, the stop 24 can be a nut that can be screwed onto one end of the second assembly 22 axially away from the drive wheel 200.

[0055] Here, by setting the stop 24, the axial movement of the bearing 23 can be restricted, thereby improving the working stability of the bearing 23.

[0056] In one embodiment, please refer to Figure 2 The connecting device 2 includes a washer 25, which is disposed on the end face of the stop member 24 close to the bearing 23 along the axial direction.

[0057] This reduces frictional damage between bearing 23 and stop 24, and improves the service life of bearing 23 and stop 24.

[0058] In one embodiment, please refer to Figure 2 The outer periphery of the second assembly 22 is formed with a flange 22a, which is used to cooperate with the stop 24 to limit the bearing 23 axially.

[0059] In this way, by providing a flange 22a on the outer periphery of the second assembly 22, the stop member 24 can be used to limit the bearing 23 axially, further restricting the axial movement of the bearing 23 and improving the working stability of the bearing 23.

[0060] In one embodiment, please refer to Figure 2 The first component 21 has a socket, and the second component 22 is inserted into the first component 21 through the socket. The connecting device 2 includes a sealing ring 26, which is disposed in the socket.

[0061] For example, the sealing ring 26 may be a lip seal ring disposed between the insertion port located between the flange 22a and the inner surface of the first assembly 21.

[0062] Here, by setting a sealing ring 26 at the socket, the first kit 21 can be isolated from the outside world, so as to reduce the entry of foreign objects such as dust into the first kit 21 and affect the operation of related components, resulting in good working stability.

[0063] As an example, in one embodiment, please refer to Figure 2 The connecting device 2 includes a spacer 27, which is disposed between the second assembly 22 and the drive wheel 200.

[0064] For example, spacer 27 can be disposed between the outer surface of the second assembly 22 at one end axially away from the output shaft 11 and the inner surface of the mounting sleeve 201.

[0065] In one embodiment, please refer to Figure 2 The connecting device 2 includes an end cap 28, which is disposed in the second assembly 22 for limiting the drive wheel 200 along the axial direction of the output shaft 11.

[0066] For example, the end cap 28 can be fixed by bolts to the end face of the second kit 22 axially away from the output shaft 11. The end cap 28 can be located outside the mounting sleeve 201, so that the periphery of the end cap 28 can abut against the corresponding end face of the mounting groove.

[0067] Here, by setting the end cap 28, when the second assembly 22 drives the drive wheel 200 to rotate, the drive wheel 200 can be axially limited to restrict its axial movement, thereby reducing the possibility of the drive wheel 200 coming off the second assembly 22 and improving the rotational stability of the drive wheel 200.

[0068] In one embodiment, please refer to Figure 2 The outer periphery of the second kit 22 has a stepped portion 22b, which is used to engage with the end cover 28 to limit the drive wheel 200 axially.

[0069] For example, the second assembly 22 includes a first connecting portion 221 and a second connecting portion 222. One end of the first connecting portion 221 along the axial direction is connected to and coaxially disposed with the second connecting portion 222. The other end of the first connecting portion 221 along the axial direction is connected to the output shaft 11. One end of the second connecting portion 222 along the axial direction relative to the first connecting portion 221 is connected to the drive wheel 200. The diameter of the first connecting portion 221 is larger than the diameter of the second connecting portion 222, such that a stepped portion 22b is formed at the connection between the first connecting portion 221 and the second connecting portion 222. A flange 22a can be formed in the first connecting portion 221 near the stepped portion 22b.

[0070] In this way, by forming a stepped portion 22b on the second assembly 22, the drive member 1 can be limited along the axial direction in conjunction with the end cover 28, further restricting the drive wheel 200 from moving along the axial direction, reducing the possibility of the drive wheel 200 coming off the second assembly 22, and improving its working stability.

[0071] The above description is merely a preferred embodiment of this application and is not intended to limit the application. Various modifications and variations can be made to this application by those skilled in the art. All modifications, equivalent substitutions, improvements, etc., within the spirit and principles of this application are included within the scope of protection of this application.

Claims

1. A connection device for the output shaft of a drive component, the drive component being mounted on a vehicle frame, characterized in that, The connecting device includes: The first component is connected to the frame, and the output shaft is located within the first component. The second assembly has one end rotatably disposed within the first assembly and connected to the output shaft, and the other end of the second assembly extends out of the second assembly and is connected to the drive wheel.

2. The connecting device according to claim 1, characterized in that, The connecting device includes a bearing disposed between the first assembly and the second assembly.

3. The connecting device according to claim 2, characterized in that, The connecting device includes a stop member, which is sleeved on the outer periphery of the first kit and is used to limit the bearing along the axial direction of the output shaft.

4. The connecting device according to claim 3, characterized in that, The second kit has a flange formed on its outer periphery, the flange being used to engage with the stop to limit the bearing along the axial direction; and / or, The connecting device includes a washer disposed on the end face of the stop member near the bearing along the axial direction; and / or, The bearing is a tapered roller bearing.

5. The connecting device according to claim 1, characterized in that, The first kit has a socket, and the second kit is inserted into the first kit through the socket. The connecting device includes a sealing ring, which is disposed in the socket.

6. The connecting device according to claim 1, characterized in that, The connecting device includes an end cap disposed on the second assembly for limiting the drive wheel along the axial direction of the output shaft.

7. The connecting device according to claim 6, characterized in that, The outer periphery of the second kit has a stepped portion, which is used to engage with the end cap to limit the drive wheel along the axial direction.

8. A driving device, characterized in that, It includes a drive unit and a connecting device as described in any one of claims 1 to 7, the connecting device being connected between the output shaft of the drive unit and the drive wheel.

9. The driving device according to claim 8, characterized in that, The driving component is a hydraulic motor.

10. A tracked transport device, characterized in that, Includes the drive device as described in claim 8 or 9.

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