Bucket-wheel mechanism and bucket-wheel type digging and loading machine

Abstract

The utility model discloses a bucket wheel mechanism and a bucket wheel type digging and loading machine, the bucket wheel mechanism comprises a bucket wheel and a bucket wheel arm support, and further comprises a bucket wheel arm, a bucket wheel driving device, a bucket wheel driving device and a bucket wheel driving device, the bucket wheel shaft is rotationally arranged on the bucket wheel arm; the walking speed reducer is embedded in the end, away from the bucket wheel, of the bucket wheel shaft, and the walking speed reducer is connected with the bucket wheel arm through a transition sleeve; the hydraulic motor is inserted into the walking speed reducer; the problem that the axial size of the bucket wheel shaft is too long is solved, and meanwhile the stability of the whole machine is improved.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, specifically to a bucket wheel mechanism and a bucket wheel excavator / loader. Background Technology

[0002] The bucket wheel mechanism is one of the more important components of a bucket wheel stacker-reclaimer. Its function is to retrieve materials onto the machine through rotation. It typically includes the bucket wheel and its drive unit.

[0003] There are two main drive methods for existing bucket wheels: motor + reducer drive and low-speed high-torque motor direct drive. Due to torque limitations, low-speed high-torque motors are mainly used in bucket wheel equipment with relatively low torque requirements. Whether it is motor + reducer drive or low-speed high-torque motor drive, it is placed on the outside of the bucket wheel boom and away from the bucket wheel end. This arrangement is simple and convenient for maintenance and repair, but this arrangement increases the axial length of the bucket wheel, causing the bucket wheel boom to interfere with the material when rotating towards the motor side, and reducing the rotation amplitude.

[0004] In the motor + reducer mode, the motor is a three-phase asynchronous motor and the reducer is a cylindrical gear reducer; both the motor and the reducer are relatively heavy in size and weight, which is also detrimental to the stability of the bucket wheel excavator. Utility Model Content

[0005] The purpose of this utility model is to provide a bucket wheel mechanism and a bucket wheel excavator to solve the problem of excessive axial length of the bucket wheel shaft, while improving the stability of the whole machine.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a bucket wheel mechanism, including a bucket wheel and a bucket wheel boom, further comprising: a bucket wheel boom, the bucket wheel boom being disposed on the bucket wheel boom; a bucket wheel shaft, the bucket wheel shaft being rotatably disposed on the bucket wheel shaft, and one end of the bucket wheel shaft being connected to the bucket wheel via a connector; a travel reducer, the travel reducer being embedded in the end of the bucket wheel shaft away from the bucket wheel, and the travel reducer being connected to the bucket wheel boom via a transition sleeve; and a hydraulic motor, the hydraulic motor being inserted into the travel reducer; wherein, the end face of the output end of the travel reducer is connected to the bucket wheel shaft.

[0007] Furthermore, the bucket wheel shaft has a hollow stepped shaft structure, and the travel reducer is embedded in the cavity at the end of the bucket wheel shaft away from the bucket wheel, and the end face of the bucket wheel shaft away from the bucket wheel is connected to the end face of the output end of the travel reducer.

[0008] Furthermore, the bucket wheel boom includes: a hollow sleeve disposed on the bucket wheel boom frame; a first mounting support disposed inside the hollow sleeve; and a second mounting support disposed inside the hollow sleeve; wherein the bucket wheel shaft is movably connected to the first and second mounting supports via bearings.

[0009] Furthermore, the bucket wheel arm also includes: a right-side connecting plate, which is disposed at one end of the hollow sleeve adjacent to the travel reducer; wherein, the right-side connecting plate is used to install the transition sleeve.

[0010] Furthermore, the bucket wheel arm also includes: a left connecting plate, which is disposed at the other end of the hollow sleeve; wherein, the left connecting plate is provided with a bracket for installing the skeleton oil seal.

[0011] Furthermore, a skeleton oil seal is provided between the right-side connecting plate and the bucket wheel shaft.

[0012] Furthermore, the hollow sleeve is provided with an oil injection device for bearing lubrication.

[0013] Furthermore, the connector is an expansion sleeve.

[0014] Furthermore, the hydraulic motor is flange-connected and inserted into the travel reducer.

[0015] A bucket wheel excavator is provided, wherein the bucket wheel excavator is equipped with the aforementioned bucket wheel mechanism.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0017] 1. The traditional cylindrical gear reducer and three-phase asynchronous motor are replaced by a travel reducer and a hydraulic motor, respectively. The hydraulic motor is directly inserted into the travel reducer, which has the advantage of compact structure. The replacement of series components with embedded components significantly reduces the axial dimension.

[0018] 2. It can reduce the weight of the front end of the bucket wheel arm, thereby improving the stability of the whole machine. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of the bucket wheel mechanism of this utility model;

[0021] Figure 2 yes Figure 1Enlarged structural diagram of region A in the middle;

[0022] Figure 3 yes Figure 1 Enlarged structural diagram of region B in the middle;

[0023] Figure 4 This is a schematic diagram of the bucket wheel arm structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the bucket wheel axle structure of this utility model;

[0025] In the diagram: 1. Bucket wheel; 2. Connecting piece; 3. Bucket wheel shaft; 4. Frame oil seal; 5. Bearing; 6. Travel reducer; 7. Bucket wheel boom; 8. Bucket wheel boom; 801. Left side connecting plate; 802. Mounting support one; 803. Hollow sleeve; 804. Mounting support two; 805. Right side connecting plate; 9. Transition sleeve; 10. Hydraulic motor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] Please see Figures 1-5 This utility model provides a technical solution: a bucket wheel mechanism, including a bucket wheel boom 7, on which a bucket wheel arm 8 is mounted; it also includes a bucket wheel shaft 3, which passes through the bucket wheel arm 8 and is rotatably mounted on the bucket wheel arm 8; the bucket wheel shaft 3 has a hollow stepped shaft structure, such as... Figure 1 As shown, the left end of the bucket wheel shaft 3 extends into the bucket wheel arm 8, and the left end of the bucket wheel shaft 3 is connected to the bucket wheel 1 via a connector 2. Specifically, the connector 2 can be an expansion sleeve, which facilitates disassembly and assembly and also reduces the wall thickness of the bucket wheel shaft 3. The right end of the bucket wheel shaft 3 is fitted with a travel reducer 6. Specifically, the travel reducer 6 is fitted into the cavity at the right end of the bucket wheel shaft 3. The right end face of the bucket wheel shaft 3 is provided with a mounting hole for connecting with the end face of the output end (i.e., the end of the reduction output) of the travel reducer 6. The outer side of the travel reducer 6 is connected to the bucket wheel arm 7 via a transition sleeve 9, and the hydraulic motor 10 is directly inserted into the travel reducer 6 via a flange connection. The travel reducer 6 is driven by the hydraulic motor 10, and the travel reducer 6 drives the bucket wheel shaft 3 to rotate, thereby driving the bucket wheel 1 to rotate.

[0029] The bucket wheel boom 8 includes a hollow sleeve 803 cylinder welded to the bucket wheel boom frame 7. A first mounting support 802 and a second mounting support 804 are welded inside the hollow sleeve 803 cylinder. Bearings 5 ​​connect the bucket wheel shaft 3 to both the first and second mounting supports 802 and 804. A left connecting plate 801 and a right connecting plate 805 are respectively provided at the left and right ends of the hollow sleeve 803 cylinder. A flat surface and holes are machined on the left connecting plate 801 for mounting a support for the skeleton oil seal 4; that is, a skeleton oil seal 4 is provided between the support and the bucket wheel shaft 3. A skeleton oil seal 4 is provided between the right connecting plate 805 and the bucket wheel shaft 3, and a flat surface and holes are machined on the right connecting plate 805 for mounting a transition sleeve 9.

[0030] In this embodiment, a travel reducer 6 and a hydraulic motor 10 replace the traditional cylindrical gear reducer and three-phase asynchronous motor, respectively. The hydraulic motor 10 is inserted into the travel reducer 6, which is equivalent to partial embedding. The travel reducer 6 has the advantage of compact structure. The hydraulic motor 10 is directly inserted into the travel reducer 6, thereby effectively shortening the axial dimension of the bucket wheel shaft 3. At the same time, it can also reduce the weight of the front end of the bucket wheel arm 8 and improve the stability of the whole machine. In this embodiment, changing the series-connected components to embedded ones has a significant effect on shortening the axial dimension.

[0031] Example 2

[0032] See again Figures 1-5 Based on Embodiment 1, this embodiment can be equipped with an oil injection device for lubricating the bearing 5 on the hollow sleeve 803. Since the skeleton oil seal 4 is provided, a sealed space can be formed inside the bucket wheel arm 8. By injecting grease through the oil injection device, the bearing 5 can be lubricated, thus solving the problem of lubricating the bearing 5 during the transmission of the bucket wheel shaft 3.

[0033] Example 3

[0034] This embodiment discloses a bucket wheel excavator, which is equipped with the bucket wheel mechanism described in Embodiment 2.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bucket wheel mechanism, comprising a bucket wheel and a bucket wheel boom, characterized in that, Also includes: Bucket wheel boom, wherein the bucket wheel boom is mounted on the bucket wheel boom frame; A bucket wheel shaft is rotatably mounted on the bucket wheel arm, and one end of the bucket wheel shaft is connected to the bucket wheel via a connector; A travel speed reducer is embedded at the end of the bucket wheel shaft away from the bucket wheel, and the travel speed reducer is connected to the bucket wheel arm through a transition sleeve; A hydraulic motor, which is inserted into the travel reducer; The end face of the output end of the traveling reducer is connected to the bucket wheel shaft.

2. The bucket wheel mechanism according to claim 1, characterized in that, The bucket wheel shaft has a hollow stepped shaft structure, and the travel reducer is embedded in the cavity at the end of the bucket wheel shaft away from the bucket wheel. The end face of the bucket wheel shaft away from the bucket wheel is connected to the end face of the output end of the travel reducer.

3. The bucket wheel mechanism according to claim 1, characterized in that, The bucket wheel arm includes: A hollow sleeve is provided on the bucket wheel boom; Mounting support one, wherein the mounting support one is disposed inside the hollow sleeve; Mounting support two, wherein the mounting support two is disposed inside the hollow sleeve; The bucket wheel shaft is movably connected inside mounting support one and mounting support two via bearings.

4. A bucket wheel mechanism according to claim 3, characterized in that, The bucket wheel arm also includes: a right-side connecting plate, which is disposed at one end of the hollow sleeve adjacent to the travel reducer; The right-side connecting plate is used to install the transition sleeve.

5. A bucket wheel mechanism according to claim 3, characterized in that, The bucket wheel arm also includes: a left connecting plate, which is disposed at the other end of the hollow sleeve; The left connecting plate is equipped with a bracket for installing the skeleton oil seal.

6. A bucket wheel mechanism according to claim 4, characterized in that, A skeleton oil seal is provided between the right-side connecting plate and the bucket wheel shaft.

7. A bucket wheel mechanism according to claim 6, characterized in that, The hollow sleeve is equipped with an oil injection device for bearing lubrication.

8. A bucket wheel mechanism according to claim 1, characterized in that, The connector uses an expansion sleeve.

9. A bucket wheel mechanism according to claim 1, characterized in that, The hydraulic motor is flange-connected and inserted into the travel reducer.

10. A bucket wheel excavator, characterized in that, Includes the bucket wheel mechanism as described in any one of claims 1-9.

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