Support device and hydraulic system

Abstract

The utility model provides a kind of supporting device and hydraulic system.Supporting device includes support assembly (2), first fastener (4) and vibration isolation bushing (3).Support assembly (2) is used to support hydraulic unit (1), and support assembly (2) has first connecting hole (211).First fastener (4) is worn first connecting hole (211), and first fastener (4) is used to be connected with hydraulic unit (1).Vibration isolation bushing (3) is sleeved in first fastener (4), and part of vibration isolation bushing (3) is located in first connecting hole (211).When the supporting device supports and fixes hydraulic unit (1), vibration isolation bushing (3) can absorb the force and vibration of alternating load, and improve the reliability of supporting device.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic technology, and in particular relates to a support device and hydraulic system. Background Technology

[0002] The hydraulic unit is a hydraulic component consisting of a closed-loop variable hydraulic pump and a closed-loop fixed displacement motor, used to achieve stepless speed regulation within the working section.

[0003] In existing technologies, hydraulic units are often supported and fixed using flanges and bolts. However, this method of support and fixation can easily cause the bolts to loosen under long-term alternating loads, resulting in low reliability. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] This utility model provides a support device, including:

[0006] A support assembly for supporting a hydraulic unit, the support assembly having a first connection hole;

[0007] A first fastener, the first fastener passing through the first connecting hole, the first fastener being used for connection with the hydraulic unit; and

[0008] A vibration isolation bushing is fitted onto the first fastener, and a portion of the vibration isolation bushing is located within the first connecting hole.

[0009] The support device of this utility model includes a support assembly, a first fastener, and a vibration-damping bushing. The first fastener connects the hydraulic unit to the support assembly, allowing the support assembly to fix and support the hydraulic unit. The vibration-damping bushing is fitted onto the first fastener; therefore, when the support device supports and fixes the hydraulic unit, the vibration-damping bushing can absorb the force and vibration of alternating loads, improving the reliability of the support device.

[0010] In some embodiments, the vibration isolation bushing includes:

[0011] Inner support ring;

[0012] A vibration isolation ring, wherein the vibration isolation ring is sleeved on the inner support ring and connected to the inner support ring, the vibration isolation ring being an elastic structure; and

[0013] An outer support ring is sleeved on the vibration isolation ring and connected to the vibration isolation ring.

[0014] The vibration isolation bushing includes an inner support ring, a vibration isolation ring, and an outer support ring. The inner support ring is used to transmit loads. The vibration isolation ring is used to absorb the forces and vibrations of alternating loads. The outer support ring is used to mate with the first support frame.

[0015] In some embodiments, the support component includes:

[0016] A first support frame, the first support frame having a first connecting hole;

[0017] The second support frame is arranged at an axial distance from the first support frame along the hydraulic unit.

[0018] By setting up support components including a first support frame and a second support frame spaced apart, the number of support positions for the hydraulic unit is increased, thereby improving support reliability.

[0019] In some embodiments, the first support frame has a first connecting portion for abutting against the hydraulic unit.

[0020] By setting the first connecting part, the axial limit of the hydraulic unit is achieved.

[0021] In some embodiments, the second support frame has a second connecting portion for abutting against the hydraulic unit.

[0022] By setting a second connecting part, the hydraulic unit can be axially limited.

[0023] This embodiment also provides a hydraulic system, including:

[0024] The aforementioned support device; and

[0025] A hydraulic unit, which is connected to the support assembly.

[0026] Because the hydraulic system includes the aforementioned support device, it also has the advantage of high reliability.

[0027] In some embodiments, an input gear is also included, wherein the hydraulic unit includes a first connecting shaft, and the input gear is sleeved on and connected to the first connecting shaft.

[0028] An input gear is provided to accept external torque.

[0029] In some embodiments, an output gear is also included, wherein the hydraulic unit includes a second connecting shaft, and the output gear is sleeved on and connected to the second connecting shaft.

[0030] An output gear is used to output torque to the outside.

[0031] In some embodiments, a second fastener is also included, through which the output gear is connected to the second connecting shaft.

[0032] The connection between the output gear and the second connecting shaft is achieved by setting a second fastener.

[0033] In some embodiments, the hydraulic unit includes:

[0034] The subject; and

[0035] The oil pipe assembly has one end connected to the outside and the other end connected to the interior of the main body.

[0036] By installing an oil pipe system, system oil can enter the interior of the main body through the oil pipe system, reducing the risk of oil leakage and low system pressure caused by vibration isolation bushing failure. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a cross-sectional view of a hydraulic system provided in one embodiment of the present invention;

[0039] Figure 2 This is an exploded view of a hydraulic system provided in one embodiment of the present invention;

[0040] Figure 3 This is a schematic diagram of the structure of a vibration isolation bushing provided in one embodiment of the present invention;

[0041] Figure 4 This is a cross-sectional view of a vibration isolation bushing provided in one embodiment of the present invention.

[0042] Figure label:

[0043] 1. Hydraulic unit; 11. Body; 111. First connecting shaft; 112. Second connecting shaft; 113. Second connecting hole; 12. Oil pipe assembly; 121. Hollow pipe; 122. Valve block;

[0044] 2. Support assembly; 21. First support frame; 211. First connecting hole; 212. First connecting part; 22. Second support frame; 221. Second connecting part;

[0045] 3. Vibration isolation bushing; 31. Inner support ring; 32. Vibration isolation ring; 33. Outer support ring;

[0046] 4. First fastener;

[0047] 5. Input gear;

[0048] 6. Output gear;

[0049] 7. Second fastener;

[0050] 8. Gaskets;

[0051] 9. Bearings. Detailed Implementation

[0052] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.

[0053] The terms "first," "second," and "third" used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of components in a specific posture (as shown in the figures). If the specific posture changes, the directional indication will also change accordingly. The terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0054] The support device includes a support assembly, a first fastener, and a vibration-damping bushing. The support assembly supports the hydraulic unit and has a first connection hole. The first fastener passes through the first connection hole and is used for connection with the hydraulic unit. The vibration-damping bushing is fitted onto the first fastener, with a portion of the bushing located within the first connection hole.

[0055] The support device of this utility model includes a support assembly, a first fastener, and a vibration-damping bushing. The first fastener connects the hydraulic unit to the support assembly, allowing the support assembly to fix and support the hydraulic unit. The vibration-damping bushing is fitted onto the first fastener; therefore, when the support device supports and fixes the hydraulic unit, the vibration-damping bushing can absorb the force and vibration of alternating loads, improving the reliability of the support device.

[0056] like Figure 1 and Figure 2 As shown, in some embodiments, the hydraulic system includes a hydraulic unit 1 and a support device. The support device includes a support assembly 2. The hydraulic unit 1 is connected to the support assembly 2. The support assembly 2 is used to support and secure the hydraulic unit 1.

[0057] In some embodiments, the hydraulic unit 1 includes a body 11 and an oil pipe assembly 12. One end of the oil pipe assembly 12 is connected to the outside, and the other end of the oil pipe assembly 12 is connected to the interior of the body 11. By providing the oil pipe assembly 12, system oil can enter the interior of the body 11 through the oil pipe assembly 12, reducing the risk of oil leakage and low system pressure caused by the failure of the vibration isolation bushing 3.

[0058] Specifically, the tubing assembly 12 includes a hollow tube 121 and a valve block 122. The hollow tube 121 is connected to the valve block 122 and is in communication with the valve block 122. The valve block 122 is connected to the body 11 and is in communication with the body 11.

[0059] In some embodiments, the valve block 122 is provided with a through hole, the body 11 is provided with a first threaded hole, and a third fastener passes through the through hole and is threadedly connected to the first threaded hole, thereby connecting the valve block 122 to the body 11, and thus connecting the oil pipe device 12 to the body 11. For example, the third fastener is a screw.

[0060] In some embodiments, the through hole is a circular hole. Of course, in other embodiments, the through hole may also be a circular hole or an elliptical hole.

[0061] In some embodiments, multiple first threaded holes are provided, spaced apart. Providing multiple first threaded holes makes the connection between the oil pipe assembly 12 and the body 11 more secure. Specifically, four first threaded holes are provided, arranged in a two-row, two-column configuration. Correspondingly, four through holes are also provided, also arranged in a two-row, two-column configuration.

[0062] In some embodiments, the hydraulic unit 1 includes a first connecting shaft 111. An input gear 5 is sleeved on and connected to the first connecting shaft 111. The input gear 5 is used to transmit external torque.

[0063] Specifically, the first connecting shaft 111 is connected to the input gear 5 via a first spline. Connecting the first connecting shaft 111 and the input gear 5 via the first spline not only allows for the transmission of greater torque but also provides high centering accuracy and good guiding performance.

[0064] In some embodiments, the hydraulic unit 1 includes a second connecting shaft 112. An output gear 6 is sleeved on and connected to the second connecting shaft 112. The output gear 6 is used to transmit torque to the outside.

[0065] Specifically, the second connecting shaft 112 is connected to the output gear 6 via a second spline. Connecting the second connecting shaft 112 and the output gear 6 via the second spline not only allows for the transmission of greater torque but also provides high centering accuracy and good guiding performance.

[0066] In some embodiments, the hydraulic unit 1 includes a body 11, which includes a hydraulic pump (not shown) and a hydraulic motor (not shown). The hydraulic pump includes a first connecting shaft 111. The hydraulic motor includes a second connecting shaft 112. During operation, the input gear 5 transmits the torque of the first external device to the first connecting shaft 111, the hydraulic pump then transmits the power to the second connecting shaft 112 of the hydraulic motor, and the second connecting shaft 112 then outputs the torque to the second external device via the output gear 6.

[0067] In some embodiments, the support assembly 2 includes a first support frame 21 and a second support frame 22. The first support frame 21 and the second support frame 22 are spaced apart along the axial direction of the hydraulic unit 1. The first support frame 21 is used to support the hydraulic unit 1. The second support frame 22 is used to support the hydraulic unit 1. By providing the support assembly 2 with the spaced-apart first support frame 21 and second support frame 22, the number of support positions for the hydraulic unit 1 is increased, and the support reliability is improved.

[0068] Specifically, the hydraulic unit 1 has a first end and a second end opposite to the first end. A first support frame 21 is located at the first end of the hydraulic unit 1. A second support frame 22 is located at the second end of the hydraulic unit 1. Since the hydraulic unit 1 has a relatively long length along its axial direction, placing the first support frame 21 at the first end of the hydraulic unit 1 and the second support frame 22 at the second end of the hydraulic unit 1 results in a clear force model, avoids over-positioning, and simplifies the assembly process.

[0069] In some embodiments, the first support frame 21 has a first connecting portion 212 for abutting against the hydraulic unit 1. By providing the first connecting portion 212, axial limiting of the hydraulic unit 1 is achieved.

[0070] In some embodiments, the second support frame 22 has a second connecting portion 221, which is used to abut against the hydraulic unit 1. By providing the second connecting portion 221, axial limiting of the hydraulic unit 1 is achieved.

[0071] Specifically, the hydraulic unit 1 also includes a housing. The housing has a receiving cavity. Both the hydraulic pump and the hydraulic motor are located in the receiving cavity. The housing has a first end and a second end. The first end has a third connecting portion. The first connecting portion 212 and the third connecting portion abut against each other. One of the first connecting portion 212 and the third connecting portion is a first convex stop, and the other is a first concave stop. The second end has a fourth connecting portion. The second connecting portion 221 and the fourth connecting portion abut against each other. One of the second connecting portion 221 and the fourth connecting portion is a second convex stop, and the other is a second concave stop.

[0072] In some embodiments, the first connecting portion 212 is a first convex stop, and the third connecting portion is a first concave stop.

[0073] In some embodiments, the second connecting portion 221 is a second convex stop, and the fourth connecting portion is a second concave stop.

[0074] In some embodiments, the first support frame 21 has a first connecting hole 211. The hydraulic unit 1 has a second threaded hole. The first fastener 4 passes through the first connecting hole 211 and is threadedly connected to the second threaded hole. The first support frame 21 and the hydraulic unit 1 are connected by the first fastener 4, which is simple in structure, convenient in operation, and has a firm connection.

[0075] Specifically, the second threaded hole is located at the first end.

[0076] For example, the first fastener 4 is a bolt.

[0077] In some embodiments, the first connecting hole 211 is a circular hole. Of course, in other embodiments, the first connecting hole 211 may also be an elliptical hole or a polygonal hole.

[0078] In some embodiments, the vibration isolation bushing 3 is sleeved on the first fastener 4, and a portion of the vibration isolation bushing 3 is located within the first connecting hole 211. By providing the vibration isolation bushing 3, the force and vibration of alternating loads can be absorbed, thereby improving the reliability of the support device.

[0079] like Figure 3 and Figure 4 As shown, in some embodiments, the vibration isolation bushing 3 includes an inner support ring 31, a vibration isolation ring 32, and an outer support ring 33. The vibration isolation ring 32 is sleeved on and connected to the inner support ring 31. The outer support ring 33 is sleeved on and connected to the vibration isolation ring 32. The inner support ring 31 is used to transmit loads. The vibration isolation ring 32 is used to absorb the force and vibration of alternating loads. The outer support ring 33 is used to cooperate with the first support frame 21.

[0080] In some embodiments, the inner support ring 31 is made of steel. For example, the inner support ring 31 is made of 45# steel. Of course, in other embodiments, the inner support ring 31 may also be made of aluminum alloy.

[0081] In some embodiments, the vibration isolation ring 32 is made of rubber. Of course, in other embodiments, the vibration isolation ring 32 may also be made of silicone or fluoropolymer.

[0082] In some embodiments, the outer support ring 33 is made of steel. For example, the outer support ring is made of 45# steel. Of course, in other embodiments, the outer support ring may also be made of aluminum alloy.

[0083] In some embodiments, the length of the inner support ring 31 along its axial direction is greater than the length of the vibration isolation ring 32 along its axial direction.

[0084] In some embodiments, the length of the outer support ring 33 along its axial direction is equal to the length of the vibration isolation ring 32 along its axial direction.

[0085] In some embodiments, the inner support ring 31 has a circular cross-sectional shape along its axial direction. Of course, in other embodiments, the inner support ring 31 may also have an elliptical cross-sectional shape along its axial direction.

[0086] In some embodiments, the vibration isolation ring 32 has a circular cross-sectional shape along its axial direction. Of course, in other embodiments, the vibration isolation ring 32 may also have an elliptical cross-sectional shape along its axial direction.

[0087] In some embodiments, the outer support ring 33 has a circular cross-sectional shape along its axial direction. Of course, in other embodiments, the outer support ring 33 may also have an elliptical cross-sectional shape along its axial direction.

[0088] like Figure 1 and Figure 2 As shown, in some embodiments, the first support frame 21 has a plurality of first connecting holes 211. The plurality of first connecting holes 211 are spaced apart. A plurality of first fasteners 4 are provided. The first fasteners 4 are provided in a one-to-one correspondence with the first connecting holes 211. A plurality of vibration damping bushings 3 are provided. The vibration damping bushings 3 are provided in a one-to-one correspondence with the first connecting holes 211.

[0089] Specifically, the first support frame 21 has two first connecting holes 211. The two first connecting holes 211 are symmetrically arranged along the axis of the hydraulic unit 1.

[0090] In some embodiments, the second threaded hole is a countersunk hole. A portion of the inner support ring 31 is located within the second threaded hole.

[0091] In some embodiments, the first support frame 21 has a mounting hole. A bearing 9 is located within the mounting hole. The bearing 9 is sleeved on the first connecting shaft 111. By providing the bearing 9, the rotation of the first connecting shaft 111 becomes smoother.

[0092] In some embodiments, the output gear 6 is connected to the second connecting shaft 112 via a second fastener 7. The connection between the output gear 6 and the second connecting shaft 112 via the second fastener 7 is simple in structure, easy to operate, and provides a high degree of connection strength.

[0093] In some embodiments, the second fastener 7 includes a connector and a connecting post connected to the connector. A washer 8 is sleeved on the connecting post. The washer 8 is located between the output gear 6 and the connector. One end of the washer 8 abuts against the output gear 6, and the other end of the washer 8 abuts against the connector.

[0094] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0095] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0096] In this utility model, unless otherwise explicitly 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, an electrical connection, or a connection that allows communication between them; 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0097] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0098] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0099] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A support device, characterized in that, include: A support assembly (2) for supporting a hydraulic unit (1), the support assembly (2) having a first connection hole (211); A first fastener (4) passes through the first connecting hole (211) and is used to connect to the hydraulic unit (1); and Vibration isolation bushing (3), the vibration isolation bushing (3) is sleeved on the first fastener (4), and a part of the vibration isolation bushing (3) is located in the first connecting hole (211).

2. The support device according to claim 1, characterized in that, The vibration isolation bushing (3) includes: Inner support ring (31); A vibration isolation ring (32), which is sleeved on and connected to the inner support ring (31), wherein the vibration isolation ring (32) is an elastic structure; and An outer support ring (33) is sleeved on the vibration isolation ring (32) and connected to the vibration isolation ring (32).

3. The support device according to claim 1, characterized in that, The support component (2) includes: A first support frame (21) having a first connecting hole (211); The second support frame (22) is arranged at an axial distance from the first support frame (21) along the hydraulic unit (1).

4. The support device according to claim 3, characterized in that, The first support frame (21) has a first connecting part (212) for abutting against the hydraulic unit (1).

5. The support device according to claim 3, characterized in that, The second support frame (22) has a second connecting part (221) for abutting against the hydraulic unit (1).

6. A hydraulic system, characterized in that, include: The support device as described in any one of claims 1-5; as well as Hydraulic unit (1) is connected to the support assembly (2).

7. The hydraulic system according to claim 6, characterized in that, It also includes an input gear (5), and the hydraulic unit (1) includes a first connecting shaft (111), and the input gear (5) is sleeved on the first connecting shaft (111) and connected to the first connecting shaft (111).

8. The hydraulic system according to claim 6, characterized in that, It also includes an output gear (6), and the hydraulic unit (1) includes a second connecting shaft (112), and the output gear (6) is sleeved on the second connecting shaft (112) and connected to the second connecting shaft (112).

9. The hydraulic system according to claim 8, characterized in that, It also includes a second fastener (7), through which the output gear (6) is connected to the second connecting shaft (112).

10. The hydraulic system according to claim 6, characterized in that, The hydraulic unit (1) includes: The main body (11); and Oil pipe device (12), one end of which is connected to the outside and the other end of which is connected to the interior of the main body (11).

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