Four-wheel driving device

Abstract

The invention discloses a four-wheel driving device which comprises a mounting base, a box body and driving mechanisms, the box body is arranged on the mounting base and fixedly connected with the mounting base, the driving mechanisms are arranged on the two sides of the mounting base and movably connected with the mounting base, and each driving mechanism comprises a hydraulic motor, a speed reducer and a moving assembly. The output end of the hydraulic motor is in bolted connection with the input end of the speed reducer, the outer side of the speed reducer is in bolted connection with the moving assembly, and the inner side of the speed reducer is in bolted connection with the box body. By the adoption of the segmented series connection mode, series connection driving pipelines are simple in arrangement and only need to be connected through a rubber pipe at the center shaft position of the four-wheel-drive device, the number of proportional valves needed by series connection driving is small, the running speed of each wheel is adaptive to the running working condition of a target object, control is easy, and reliability is high.

Description

Technical Field

[0001] The present invention relates to the technical field of four-wheel drive, and in particular to a four-wheel drive device. Background Art

[0002] At present, there are various types of slideway retracting and releasing devices. Generally, winches or cylinder pulley ropes are used as the main pulling force for target recovery or the balance force during deployment. When automatic retraction and release is used, an auxiliary retraction and release hook must be installed on the head of the target. If the retraction and release hook is not configured, manual retraction and release can only be used.

[0003] The four-wheel drive device in the prior art is generally composed of a hydraulic motor and a reducer. The form is relatively simple, and the inlet and outlet ports at the rear end of the motor are connected to the external pipeline of the hydraulic system. The overall volume is large, and it is not suitable for occasions with small space requirements. When the target drives towards the recovery point at a certain speed, it will cause a certain impact, which may cause damage to the device itself and the target, thereby affecting the reliability and safety of the product.

[0004] At the same time, most general four-wheel drive devices are in parallel form. The pipeline connection of the parallel drive needs to be between the two wheels of the same four-wheel drive. The axial and vertical directions between each four-wheel drive device need to be connected by pipelines. If the proportional valve is placed in the hydraulic station, the proportional valve outlet needs more pipelines to be configured from the hydraulic station to the four-wheel drive. If the proportional valve is placed next to each four-wheel drive, a large number of cable connections will be configured. In addition, the parallel drive needs to be configured with various automatic sensors to solve the problem of synchronous speed of the four-wheel drive, and the economy and reliability are poor. Summary of the invention

[0005] The object of the present invention is to solve one of the above-mentioned technical problems at least to a certain extent.

[0006] In order to solve the above problems, the present invention proposes a four-wheel drive device, which adopts a segmented series connection form. The series drive pipeline is simple in layout and only needs to be connected by a hose at the central axis position of the four-wheel drive device. The number of proportional valves required for series drive is small, and the operating speed of each wheel is adapted to the operating condition of the target object, which is simple to control and has high reliability.

[0007] At the same time, the four-wheel drive device provided by the present invention has various single device forms and can be configured according to work requirements. It has a compact structure and can protect the device itself and the target object from being damaged through the overrunning clutch. While overcoming the layout difficulty problem, it can also improve the reliability and safety of the product.

[0008] To achieve the above object, an embodiment of the present invention provides a four-wheel drive device, comprising:

[0009] Install the base, box and drive mechanism;

[0010] HDP240165CNPage 2 / 8

[0011] Wherein, the box body is arranged on the mounting base and is fixedly connected to the mounting base; the driving mechanism is arranged on both sides of the mounting base and is movably connected to the mounting base;

[0012] The driving mechanism includes a hydraulic motor, a reducer and a moving component;

[0013] Wherein, the output end of the hydraulic motor is bolted to the input end of the reducer, the outer side of the reducer is bolted to the moving component, and the inner side of the reducer is bolted to the box body.

[0014] According to one embodiment of the present invention, the box body includes an upper U-shaped plate, a lower U-shaped plate, a side plate, a fixing flange and a cleaning hole flange;

[0015] The upper U-shaped plate and the lower U-shaped plate are arranged in parallel, the side plate connects the upper U-shaped plate and the lower U-shaped plate, and the fixing flange and the cleaning hole flange are respectively welded to the side plates.

[0016] According to an embodiment of the present invention, a cylindrical support is provided on the side plate, and the cylindrical support is fixedly connected to the mounting base.

[0017] According to an embodiment of the present invention, a limit block is provided on the cylindrical support, and the limit block cooperates with the mounting base.

[0018] According to one embodiment of the present invention, the cleaning hole flange has a cleaning hole flange cover, and the cleaning hole flange cover is fixed to the cleaning hole flange with bolts.

[0019] According to one embodiment of the present invention, the moving assembly includes a tire hub; the tire is mounted on the hub.

[0020] According to one embodiment of the present invention, the tire hubs include at least four pairs.

[0021] According to one embodiment of the present invention, it further comprises: a supporting mechanism; the supporting mechanism comprises a coupling, and the coupling connects at least four pairs of the tire hubs.

[0022] According to an embodiment of the present invention, the speed reducer has a clutch.

[0023] According to one embodiment of the present invention, it further comprises: a pipeline joint; the pipeline joint connects the hydraulic motor and the hydraulic pump station.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention.

[0025] Compared with the prior art, the beneficial effects of the embodiments of the present application are:

[0026] The present invention provides a four-wheel drive device, which adopts a segmented series connection form, and the series drive pipeline layout is simple, and only needs to be connected by a hose at the central axis position of the four-wheel drive device. The number of proportional valves required for the series drive is small, and the operating speed of each wheel is adapted to the operating condition of the target object, the control is simple, and the reliability is high.

[0027] HDP240165CNPage 3 / 8

[0028] The present invention provides a four-wheel drive device, which adopts a single device in various forms and can be configured according to work requirements. It has a compact structure and can protect the device itself and the target object from being damaged through an overrunning clutch. While overcoming the layout difficulty problem, it can also improve the reliability and safety of the product.

[0029] The invention provides a four-wheel drive device, which can be reliably connected with a mounting base through a cylindrical support arranged on a side plate.

[0030] The invention provides a four-wheel drive device, which can achieve angle limitation by cooperating with a mounting base through a limiting block arranged on a cylindrical support.

[0031] The invention provides a four-wheel drive device, and the cleaning hole arranged on the cleaning hole flange can be used to observe the internal operation of the device and to repair the device.

[0032] The invention provides a four-wheel drive device, which can realize reliable transmission of hydraulic oil by means of a pipeline pipe joint for connecting a hydraulic motor and a hydraulic pump station.

[0033] In order to more clearly understand the technical means of the present invention, which can be implemented according to the contents of the specification, and to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. Other features and advantages of the present invention will be explained in the subsequent description, and part of them will become obvious from the description, or be reflected by implementing the present invention. The purposes and other advantages of the present invention can be achieved and obtained by the structures specifically pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1A is a schematic diagram of a four-wheel drive structure of a four-wheel drive device provided according to an embodiment of the present invention;

[0036] Figure 1B is another schematic diagram of a four-wheel drive structure of a four-wheel drive device provided according to an embodiment of the present invention;

[0037] Figure 1C is another schematic diagram of a four-wheel drive structure of a four-wheel drive device provided according to an embodiment of the present invention;

[0038] Figure 2A is a schematic diagram of a two-wheel drive structure of a four-wheel drive device provided according to an embodiment of the present invention;

[0039] Figure 2B is another schematic diagram of a two-wheel drive structure of a four-wheel drive device provided according to an embodiment of the present invention;

[0040] Figure 2C is another schematic diagram of a two-wheel drive structure of a four-wheel drive device provided according to an embodiment of the present invention;

[0041] Figure 3A is a schematic diagram of a follower structure of a four-wheel drive device provided according to an embodiment of the present invention;

[0042] Figure 3B is another follow-up structure schematic diagram of a four-wheel drive device provided according to an embodiment of the present invention;

[0043] Figure 3C It is another follow-up structure schematic diagram of a four-wheel drive device provided according to an embodiment of the present invention; HDP240165CN Page 4 / 8

[0044] Figure 4 is a schematic diagram of the segmented series driving principle of a four-wheel drive device provided according to an embodiment of the present invention;

[0045] Reference numerals:

[0046] 1- cleaning hole flange cover; 2- reducer; 3- clutch; 4- hydraulic motor; 5- tire hub; 6- cylindrical support; 7- limit block; 8- side plate; 9- cleaning hole flange; 10- upper U-shaped plate; 11- lower U-shaped plate; 12- fixed flange; 13- mounting base; 14- pipe joint; 15- coupling; 16- housing. DETAILED DESCRIPTION

[0047] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention. To this end, the present invention provides a four-wheel drive device.

[0048] Specifically, a four-wheel drive device according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0049] Example 1

[0050] Figure 1A is a schematic diagram of a four-wheel drive structure of a four-wheel drive device provided according to an embodiment of the present invention, Figure 1B is another schematic diagram of a four-wheel drive structure of a four-wheel drive device provided according to an embodiment of the present invention, Figure 1C 1 is another schematic diagram of a four-wheel drive structure of a four-wheel drive device provided according to an embodiment of the present invention.

[0051] This embodiment is mainly described with respect to a four-wheel drive device, which is mainly used in a working condition where the required driving force is relatively large and all four wheel systems of the four-wheel drive device have driving force.

[0052] Specifically, refer to Figure 1A-Figure 1C , this embodiment provides a four-wheel drive device, comprising:

[0053] Install the base 13, the box 16 and the driving mechanism;

[0054] The box body 16 is arranged on the mounting base 13 and is fixedly connected to the mounting base 13; the driving mechanism is arranged on both sides of the mounting base 13 and is movably connected to the mounting base 13;

[0055] The driving mechanism includes a hydraulic motor 4, a reducer 2 and a moving component;

[0056] The output end of the hydraulic motor 4 is bolted to the input end of the reducer 2 , the outer side of the reducer 2 is bolted to the moving assembly, and the inner side of the reducer 2 is bolted to the box 16 .

[0057] More specifically, the output flange of the hydraulic motor 4 is bolted to the input end of the reducer 2, and the output shaft of the hydraulic motor 4 is connected to the input sleeve of the reducer 2 to achieve reliable fixation and transmission. Among them, the outer flange of the reducer 2 is bolted to the tire hub 5 to achieve synchronous transmission of the tire and the output end of the reducer 2, and the inner flange of the reducer 2 is bolted to the fixed flange 12 of the box body to achieve reliable fixation.

[0058] HDP240165CNPage 5 / 8

[0059] The four-wheel drive device provided by the embodiment of the present invention adopts a segmented series connection form, and the series drive pipeline layout is simple, and only needs to be connected by a hose at the central axis position of the four-wheel drive device. The number of proportional valves required for series drive is small, and the operating speed of each wheel is adapted to the operating condition of the target object, the control is simple, and the reliability is high.

[0060] At the same time, the four-wheel drive device provided by the present invention has various single device forms and can be configured according to work requirements. It has a compact structure and can protect the device itself and the target object from being damaged through the overrunning clutch 3. While overcoming the layout difficulty problem, it can also improve the reliability and safety of the product.

[0061] In one embodiment of the present invention, the box body 16 includes an upper U-shaped plate 10, a lower U-shaped plate 11, a side plate 8, a fixing flange 12 and a cleaning hole flange 9;

[0062] The upper U-shaped plate 10 and the lower U-shaped plate 11 are arranged in parallel, the side plate 8 connects the upper U-shaped plate 10 and the lower U-shaped plate 11, and the fixing flange 12 and the cleaning hole flange 9 are welded to the side plate 8 respectively.

[0063] By adopting the fixing flange 12 , reliable fixation with the reducer 2 can be achieved through the threaded holes on the fixing flange 12 .

[0064] It should be noted that a cylindrical support 6 is provided on the side plate 8 , and the cylindrical support 6 is fixedly connected to the mounting base 13 .

[0065] It can be understood that the purpose of providing the cylindrical support 6 is to reliably connect with the mounting base 13 .

[0066] Furthermore, a limit block 7 is provided on the cylindrical support 6 , and the limit block 7 cooperates with the mounting base 13 .

[0067] The limiting block 7 is provided to cooperate with the mounting base 13 to achieve angle limiting.

[0068] In one embodiment of the present invention, the cleaning hole flange 9 has a cleaning hole flange cover 1 , and the cleaning hole flange cover 1 is fixed to the cleaning hole flange 9 by bolts.

[0069] It can be understood that the cleaning holes on the cleaning hole flange 9 are mainly used to observe the internal operation of the equipment and to repair the equipment.

[0070] In one embodiment of the present invention, the mobile assembly includes a tire hub 5; the tire is mounted on the hub. It can be understood that the tire hub 5 includes at least four pairs.

[0071] In one embodiment of the present invention, the reducer 2 has a clutch 3 .

[0072] In one embodiment of the present invention, it further comprises: a pipeline joint 14; the pipeline joint 14 connects the hydraulic motor 4 and the hydraulic pump station.

[0073] It should be noted that the pipeline joint 14 is mainly used to connect the hydraulic motor 4 and the hydraulic pump station to achieve reliable transmission of hydraulic oil.

[0074] Example 2

[0075] Figure 2A is a schematic diagram of a two-wheel drive structure of a four-wheel drive device provided according to an embodiment of the present invention, Figure 2B is another schematic diagram of a two-wheel drive structure of a four-wheel drive device provided according to an embodiment of the present invention, Figure 2C It is another schematic diagram of a two-wheel drive structure of a four-wheel drive device provided according to an embodiment of the present invention.

[0076] This embodiment is mainly described with respect to a two-wheel drive four-wheel drive device, which is mainly used in a condition where the required driving force is relatively small, and the four-wheel drive device only needs two wheel trains to have driving force, and the other two wheel trains follow.

[0077] Specifically, refer to Figure 2A-2C , this embodiment provides a four-wheel drive device, comprising:

[0078] Install the base 13, the box 16 and the driving mechanism;

[0079] The box body 16 is arranged on the mounting base 13 and is fixedly connected to the mounting base 13; the driving mechanism is arranged on both sides of the mounting base 13 and is movably connected to the mounting base 13;

[0080] The driving mechanism includes a hydraulic motor 4, a reducer 2 and a moving component;

[0081] The output end of the hydraulic motor 4 is bolted to the input end of the reducer 2 , the outer side of the reducer 2 is bolted to the moving assembly, and the inner side of the reducer 2 is bolted to the box 16 .

[0082] More specifically, the output flange of the hydraulic motor 4 is bolted to the input end of the reducer 2, and the output shaft of the hydraulic motor 4 is connected to the input sleeve of the reducer 2 to achieve reliable fixation and transmission. Among them, the outer flange of the reducer 2 is bolted to the tire hub 5 to achieve synchronous transmission of the tire and the output end of the reducer 2, and the inner flange of the reducer 2 is bolted to the fixed flange 12 of the box body to achieve reliable fixation.

[0083] The four-wheel drive device provided by the embodiment of the present invention adopts a segmented series connection form, and the series drive pipeline layout is simple, and only needs to be connected by a hose at the central axis position of the four-wheel drive device. The number of proportional valves required for series drive is small, and the operating speed of each wheel is adapted to the operating condition of the target object, the control is simple, and the reliability is high.

[0084] At the same time, the four-wheel drive device provided by the present invention has various single device forms and can be configured according to work requirements. It has a compact structure and can protect the device itself and the target object from being damaged through the overrunning clutch 3. While overcoming the layout difficulty problem, it can also improve the reliability and safety of the product.

[0085] In one embodiment of the present invention, the box body 16 includes an upper U-shaped plate 10, a lower U-shaped plate 11, a side plate 8, a fixing flange 12 and a cleaning hole flange 9;

[0086] The upper U-shaped plate 10 and the lower U-shaped plate 11 are arranged in parallel, the side plate 8 connects the upper U-shaped plate 10 and the lower U-shaped plate 11, and the fixing flange 12 and the cleaning hole flange 9 are welded to the side plate 8 respectively.

[0087] By adopting the fixing flange 12 , reliable fixation with the reducer 2 can be achieved through the threaded holes on the fixing flange 12 .

[0088] It should be noted that a cylindrical support 6 is provided on the side plate 8 , and the cylindrical support 6 is fixedly connected to the mounting base 13 .

[0089] It can be understood that the purpose of providing the cylindrical support 6 is to reliably connect with the mounting base 13 .

[0090] Furthermore, a limit block 7 is provided on the cylindrical support 6 , and the limit block 7 cooperates with the mounting base 13 .

[0091] The limiting block 7 is provided to cooperate with the mounting base 13 to achieve angle limiting.

[0092] In one embodiment of the present invention, the cleaning hole flange 9 has a cleaning hole flange cover 1 , and the cleaning hole flange cover 1 is fixed to the cleaning hole flange 9 by bolts.

[0093] It can be understood that the cleaning holes on the cleaning hole flange 9 are mainly used to observe the internal operation of the equipment and to repair the equipment.

[0094] In one embodiment of the present invention, the mobile assembly includes a tire hub 5; the tire is mounted on the hub. It can be understood that the tire hub 5 includes at least four pairs.

[0095] In one embodiment of the present invention, the reducer 2 has a clutch 3 .

[0096] In one embodiment of the present invention, it further comprises: a pipeline joint 14; the pipeline joint 14 connects the hydraulic motor 4 and the hydraulic pump station.

[0097] The difference from Example 1 is that the four-wheel drive device discussed in Example 2 further includes: a supporting mechanism; the supporting mechanism includes a coupling 15, and the coupling 15 connects at least four pairs of tire hubs 5.

[0098] Example 3

[0099] Figure 3A is a schematic diagram of a follower structure of a four-wheel drive device provided according to an embodiment of the present invention, Figure 3B is another follow-up structure schematic diagram of a four-wheel drive device provided according to an embodiment of the present invention, Figure 3C 1 is another follow-up structure schematic diagram of a four-wheel drive device provided according to an embodiment of the present invention.

[0100] This embodiment is mainly described with respect to a follow-up four-wheel drive device, which is mainly used to buffer the impact of a target object and is generally arranged at the front end position.

[0101] Specifically, refer to Figure 3A-3C The difference from Example 2 is that the reducer 2, the clutch 3 and the hydraulic motor 4 are omitted in this embodiment. The functions and effects achieved are the same as those of Examples 1 and 2, and will not be described in detail here.

[0102] Example 4

[0103] Figure 4 is a schematic diagram of the segmented series driving principle of a four-wheel drive device provided according to an embodiment of the present invention;

[0104] Please refer to Figure 4 This embodiment mainly describes the segmented series driving principle of the four-wheel drive device. Figure 4It can be seen that the four-wheel drive device adopts the form of segmented series connection, which can realize the simple arrangement of series drive pipelines, and only needs to be connected by hose at the central axis position of the four-wheel drive device. The number of proportional valves required for series drive is small, and the operating speed of each wheel is adapted to the operating condition of the target object, which is simple to control and has high reliability.

[0105] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0106] HDP240165CNPage 8 / 8

[0107] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0108] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0109] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0110] The above description is only a preferred embodiment of the present invention and an explanation of the technical principles used. Those skilled in the art should understand that the disclosure scope involved in the present invention is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present invention (but not limited to) by each other.

[0111] In addition, although each operation is described in a specific order, this should not be construed as requiring these operations to be performed in the specific order shown or in a sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous. Similarly, although some specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the present invention. Some features described in the context of a separate embodiment can also be implemented in a single embodiment in combination. On the contrary, the various features described in the context of a single embodiment can also be implemented in multiple embodiments individually or in any suitable sub-combination mode.

[0112] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the scope of the claims of the present invention to be approved.

Claims

1. A four-wheel drive device, characterized in that: include: Install the base, box and drive mechanism; Wherein, the box body is arranged on the mounting base and is fixedly connected to the mounting base; the driving mechanism is arranged on both sides of the mounting base and is movably connected to the mounting base; The driving mechanism includes a hydraulic motor, a reducer and a moving component; Wherein, the output end of the hydraulic motor is bolted to the input end of the reducer, the outer side of the reducer is bolted to the moving component, and the inner side of the reducer is bolted to the box body.

2. The four-wheel drive device according to claim 1, characterized in that: The box body includes an upper U-shaped plate, a lower U-shaped plate, a side plate, a fixing flange and a cleaning hole flange; The upper U-shaped plate and the lower U-shaped plate are arranged in parallel, the side plate connects the upper U-shaped plate and the lower U-shaped plate, and the fixing flange and the cleaning hole flange are respectively welded to the side plates.

3. The four-wheel drive device according to claim 2, characterized in that: The side plate is provided with a cylindrical support, and the cylindrical support is fixedly connected to the mounting base.

4. The four-wheel drive device according to claim 3, characterized in that: The cylindrical support is provided with a limit block, and the limit block matches the mounting base.

5. The four-wheel drive device according to claim 2, characterized in that: The cleaning hole flange has a cleaning hole flange cover, and the cleaning hole flange cover is fixed to the cleaning hole flange with bolts.

6. The four-wheel drive device according to claim 1, characterized in that: The moving assembly comprises a tire hub; the tire is sleeved on the hub.

7. The four-wheel drive device according to claim 6, characterized in that: The tire hubs include at least four pairs.

8. The four-wheel drive device according to claim 7, characterized in that: Also includes: Support mechanism; the support mechanism includes a coupling, and the coupling connects at least four pairs of tire hubs.

9. The four-wheel drive device according to claim 1, characterized in that: The speed reducer has a clutch.

10. The four-wheel drive device according to claim 1, characterized in that: Also includes: Pipeline fittings; The pipeline joint connects the hydraulic motor and the hydraulic pump station.

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