Motor and oil pump connection device and its tractor

Abstract

The utility model belongs to coupling technical field especially relates to a motor and oil pump connecting device and trailer, and the device includes: flange sleeve, is hollow cylinder, including upper end face and lower end face, among them, the upper end face is uniformly distributed with a plurality of first bolt holes, the upper end face is used to pass through a plurality of first bolt holes and the end surface bolt connection of motor, the lower end face array is equipped with a plurality of second bolt holes, the lower end face is used to pass through a plurality of second bolt holes and the end surface bolt connection of oil pump, coupling, be located in the cavity of flange sleeve, be used to fixedly connect motor shaft and oil pump shaft, the motor and oil pump connecting device and trailer of the utility model and the end surface of the end surface of oil pump are connected through being equipped with the flange sleeve of upper end face and lower end face, and the end surface of motor is connected, and the motor shaft and oil pump shaft are fixedly connected using the coupling inside the flange sleeve, effectively reduce the entry of dust in the flange sleeve, protect motor shaft and oil pump shaft from dust pollution.

Description

Technical Field

[0001] This utility model belongs to the field of coupling technology, and in particular relates to a motor and oil pump connection device and its tractor. Background Technology

[0002] Typically, the oil pump of a tractor unit needs to be driven by an electric motor to operate normally. The quality of the connection device between the oil pump and the motor directly affects the working efficiency and service life of the oil pump and the motor.

[0003] The common way to connect an oil pump and a motor is to connect the oil pump shaft inside the motor via a spline structure. Although this connection method is simple and easy to operate, the oil pump shaft and the motor shaft are directly exposed to the air and inevitably get contaminated with dust and other debris, which increases the maintenance cost of the equipment.

[0004] Therefore, there is an urgent need for a new type of connection device to solve the problem that the oil pump shaft and motor shaft are easily contaminated with dust when exposed to air.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0006] This disclosure provides at least one embodiment of a motor and oil pump connection device and a tractor thereof.

[0007] In a first aspect, embodiments of this disclosure provide a motor and oil pump connection device for connecting a motor and an oil pump, comprising: a flange sleeve, which is a hollow cylinder with an upper end face and a lower end face, wherein the upper end face has a plurality of first bolt holes evenly distributed around its circumference, and the upper end face is used to be bolted to the end face of the motor through the plurality of first bolt holes; the lower end face has a plurality of second bolt holes arranged in an array, and the lower end face is used to be bolted to the end face of the oil pump through the plurality of second bolt holes; and a coupling, located inside the flange sleeve, for fixing the motor shaft and the oil pump shaft together.

[0008] In one optional embodiment, the upper end face includes a motor positioning groove for positioning the motor; the lower end face includes an oil pump positioning groove for positioning the oil pump.

[0009] In one alternative embodiment, the flange sleeve has several side openings on its side, and the side openings are detachably connected to an inspection plate.

[0010] In one alternative implementation, the inspection plate includes an array of observation holes.

[0011] In one optional embodiment, a plurality of circumferentially distributed reinforcing ribs are provided between the upper end face and the side of the flange sleeve.

[0012] In one optional embodiment, the coupling is a cloverleaf coupling, comprising: a first toothed cylindrical column for fixedly connecting a motor shaft; a second toothed cylindrical column for fixedly connecting an oil pump shaft; and a cloverleaf elastic pad, wherein the teeth of the first toothed cylindrical column and the teeth of the second toothed cylindrical column mesh, and the cloverleaf elastic pad is located between the teeth of the first toothed cylindrical column and the teeth of the second toothed cylindrical column.

[0013] In one optional embodiment, the first toothed cylindrical column includes: a first gap disposed on the diameter line of the first toothed cylindrical column, and a third bolt hole perpendicular to the first gap; the second toothed cylindrical column includes: a second gap disposed on the diameter line of the second toothed cylindrical column, and a fourth bolt hole perpendicular to the second gap.

[0014] In one alternative embodiment, the openings of both the third bolt hole and the fourth bolt hole face the side opening.

[0015] In one optional embodiment, the first toothed cylindrical end facing the motor has several fifth bolt holes; the second toothed cylindrical end facing the oil pump has several sixth bolt holes.

[0016] Secondly, embodiments of this disclosure also provide a tractor vehicle, including a motor and an oil pump, wherein the motor and the oil pump are connected by the aforementioned motor and oil pump connection device.

[0017] The beneficial effects of this utility model are that the motor and oil pump connection device and its tractor are connected to the end face of the motor and the end face of the oil pump through a flange sleeve with an upper end face and a lower end face. At the same time, the motor shaft and the oil pump shaft are fixedly connected by a coupling inside the flange sleeve, which effectively reduces the entry of dust into the flange sleeve and protects the motor shaft and the oil pump shaft from dust contamination.

[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description, claims, and drawings.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A perspective view of a motor and oil pump connection device provided in an embodiment of this disclosure; Figure 2 for Figure 1 Another perspective stereoscopic view; Figure 3 This is a structural block diagram of the coupling; Figure 4 This is a schematic diagram showing the connection between the motor and the oil pump in an embodiment of this disclosure.

[0022] In the picture: Motor 100, Oil pump 200 Flange sleeve 1, upper end face 11, lower end face 12, first bolt hole 13, second bolt hole 14, motor positioning groove 15, oil pump positioning groove 16, side opening 17. Inspection plate 3, observation hole 31 Coupling 2, First toothed cylindrical column 21, Second toothed cylindrical column 22, Plum blossom elastic pad 23, First gap 211, Third bolt hole 212, Second gap 221, Fourth bolt hole 222, Fifth bolt hole 213, Sixth bolt hole 223 Reinforcing rib 4. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Research has found that in existing technologies, oil pumps are usually connected to the motor shaft via a spline structure. Although this connection method is simple and easy to operate, the oil pump shaft and motor shaft are directly exposed to the air without effective external isolation and protection, which inevitably leads to the accumulation of dust and other debris, increasing the maintenance cost of the equipment.

[0025] Based on the above research, this disclosure provides a motor and oil pump connection device and its tractor, which is connected to the end face of the motor and the end face of the oil pump through a flange sleeve with an upper end face and a lower end face. At the same time, the motor shaft and the oil pump shaft are fixedly connected by a coupling inside the flange sleeve, which effectively reduces the entry of dust into the flange sleeve and protects the motor shaft and the oil pump shaft from dust contamination.

[0026] The shortcomings of the above solutions are the result of the inventors' practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as contributions made by the inventors to this disclosure.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] For example: see Figure 1 , Figure 2 , Figure 4 At least one embodiment illustrates a motor and oil pump connection device for connecting a motor 100 and an oil pump 200, comprising: a flange sleeve 1, which is a hollow cylinder, including an upper end face 11 and a lower end face 12, wherein the upper end face 11 is provided with a plurality of first bolt holes 13 evenly distributed around its circumference, and the upper end face 11 is used to be bolted to the end face of the motor 100 through the plurality of first bolt holes 13; the lower end face 12 is provided with a plurality of second bolt holes 14 arranged in an array, and the lower end face 12 is used to be bolted to the end face of the oil pump 200 through the plurality of second bolt holes 14; and a coupling 2, located in the inner cavity of the flange sleeve 1, for fixing the motor shaft and the oil pump shaft.

[0030] In short, the upper end face 11 and the lower end face 12 can be connected to the flange sleeve 1 by means of integral molding, welding, etc., depending on the different area sizes of the end faces of the motor 100 and the oil pump 200. In this embodiment, both the upper end face 11 and the lower end face 12 are annular, and the area of ​​the upper end face 11 is larger than that of the lower end face 12. It is understood that the upper end face 11 and the lower end face 12 can also adopt different shapes such as rhombuses and triangles as needed, and there is no absolute limitation in practical applications. The upper end face 11 is bolted to the end face of the motor 100 through multiple first bolt holes 13, and the lower end face 12 is bolted to the end face of the oil pump 200 through multiple second bolt holes 14; while the coupling 2 inside the flange sleeve 1 fixes the motor shaft of the motor 100 and the oil pump shaft of the oil pump 200.

[0031] In operation, the motor shaft of motor 100 rotates, driving coupling 2 to rotate. Coupling 2, in turn, drives the oil pump shaft of oil pump 200 to rotate, thereby causing hydraulic oil to flow in the pipeline of oil pump 200. During this process, the motor shaft, oil pump shaft, and coupling 2 are all inside flange sleeve 1, which can effectively reduce the entry of dust into the flange sleeve and protect the motor shaft and oil pump shaft from dust contamination.

[0032] See Figure 1 , Figure 2 In some embodiments, the upper end face 11 includes a motor positioning groove 15 for positioning the motor 100; the lower end face 12 includes an oil pump positioning groove 16 for positioning the oil pump 200.

[0033] In short, to facilitate the installation of the motor 100 and oil pump 200 with the flange sleeve 1, motor positioning groove 15 and oil pump positioning groove 16 are respectively provided on the upper end face 11 and lower end face 12 of the flange sleeve 1, so as to facilitate bolt fixing after positioning.

[0034] See Figure 1 In some embodiments, the flange sleeve 1 has several side openings 17 on its side, and the side openings 17 are detachably connected to the maintenance plate 3. In short, the maintenance plate 3 is an arc-shaped plate that fits onto the flange sleeve 1's cylindrical body. It can be detachably connected to the side openings 17 using bolts, but is not limited to this connection. After the maintenance plate 3 is removed, the coupling 2, motor shaft, and oil pump shaft can be maintained. Similarly, the maintenance plate 3 also facilitates the installation of the entire motor and oil pump connection device. That is, during installation, the flange sleeve 1 is not initially equipped with the maintenance plate 3. First, the upper end face 11 and lower end face 12 of the flange sleeve 1 are bolted to the end face of the motor 100 and the end face of the oil pump 200, respectively. Then, the coupling 2 is installed on the motor shaft and the oil pump shaft, and finally, the maintenance plate 3 is installed.

[0035] See Figure 1 , Figure 2 In some embodiments, the inspection plate 3 includes an array of observation holes 31. In short, the observation holes 31 are used to observe the operating condition of the coupling 2, motor shaft, and oil pump shaft inside the flange sleeve 1, thereby determining whether maintenance is required. It is understood that the holes 31 should not be too large to prevent excessive dust from entering the flange sleeve 1; of course, transparent dustproof plates (not shown in the figure) can also be installed on the side opening 17 and the inspection plate 3 to prevent dust from entering the flange sleeve 1, but this is not an absolute limitation.

[0036] See Figure 1 , Figure 2 In some embodiments, a plurality of circumferentially distributed reinforcing ribs 4 are provided between the upper end face 11 and the side of the flange sleeve 1. In short, the reinforcing ribs 4 are used to enhance the structural stability of the upper end face 11 and the flange sleeve 1, and to prevent the motor 100 above from placing an excessive weight load on the upper end face 11.

[0037] See Figure 1 , Figure 3 In some embodiments, the coupling 2 is a cloverleaf coupling, comprising: a first toothed cylindrical column 21 for fixedly connecting the motor shaft; a second toothed cylindrical column 22 for fixedly connecting the oil pump shaft; and a cloverleaf elastic pad 23, wherein the teeth of the first toothed cylindrical column 21 and the teeth of the second toothed cylindrical column 22 mesh, and the cloverleaf elastic pad 23 is located between the teeth of the first toothed cylindrical column 21 and the teeth of the second toothed cylindrical column 22.

[0038] In short, the plum blossom coupling is a common type of coupling on the market, also called a claw coupling, and its specific model is not specifically limited. The plum blossom coupling mainly consists of a first claw cylindrical column 21, a second claw cylindrical column 22, and a plum blossom elastic pad 23. The first claw cylindrical column 21 rotates with the rotation of the motor shaft. Under the buffer protection of the plum blossom elastic pad 23, the claws of the first claw cylindrical column 21 drive the claws of the second claw cylindrical column 22 to mesh and rotate, thereby driving the oil pump shaft to rotate.

[0039] See Figure 3 In some embodiments, the first toothed cylindrical column 21 includes: a first gap 211 disposed on the diameter line of the first toothed cylindrical column 21, and a third bolt hole 212 perpendicular to the first gap 211; the second toothed cylindrical column 22 includes: a second gap 221 disposed on the diameter line of the second toothed cylindrical column 22, and a fourth bolt hole 222 perpendicular to the second gap 221.

[0040] In short, after the motor shaft extends into the shaft hole in the middle of the first toothed cylindrical column 21, the third bolt hole 212 narrows the first gap 211 by tightening the bolt, thereby causing the shaft hole in the middle of the first toothed cylindrical column 21 to contract and clamp the motor shaft. Similarly, after the oil pump shaft extends into the shaft hole in the middle of the second toothed cylindrical column 22, the fourth bolt hole 222 narrows the second gap 221 by tightening the bolt, thereby causing the shaft hole in the middle of the second toothed cylindrical column 22 to contract and clamp the oil pump shaft. To remove the motor shaft and oil pump shaft from the coupling 2, simply loosen the bolts in the third bolt hole 212 and the fourth bolt hole 222 respectively.

[0041] See Figure 3 In some embodiments, the openings of the third bolt hole 212 and the fourth bolt hole 222 both face the side opening 17.

[0042] In short, to facilitate the tightening and loosening of the bolts in the third bolt hole 212 and the fourth bolt hole 222, the openings of both the third bolt hole 212 and the fourth bolt hole 222 face the side opening 17. With this design, once the inspection plate 3 is removed from the side opening 17, the bolts in the third bolt hole 212 and the fourth bolt hole 222 can be tightened or loosened without any additional angle adjustment.

[0043] See Figure 2 , Figure 3 In some embodiments, the first toothed cylindrical column 21 facing the motor 100 has several fifth bolt holes 213; the second toothed cylindrical column 22 facing the oil pump 200 has several sixth bolt holes 223.

[0044] in short, Figure 2 , Figure 3 In the first toothed cylindrical column 21, there are three fifth bolt holes 213: one on one side of the first gap 211, and the other two on the other side. Only one of the two on the other side will be used. After the shaft hole in the middle of the first toothed cylindrical column 21 contracts to clamp the motor shaft, the end face of the motor 100 will be further bolted to the two matching fifth bolt holes 213 (located on both sides of the first gap 211). Similarly, there are four sixth bolt holes 223: one on one side of the second gap 221, and the other three on the other side. Only one of the three on the other side will be used. After the shaft hole in the middle of the second toothed cylindrical column 22 contracts to clamp the oil pump shaft, the end face of the oil pump 200 will be further bolted to the two matching sixth bolt holes 223 (located on both sides of the second gap 221).

[0045] At least one embodiment also provides a tractor unit, see [link to relevant documentation]. Figure 4It includes a motor 100 and an oil pump 200. The motor 100 and the oil pump 200 are connected by the aforementioned motor and oil pump connection device. The specific connection has been clearly described in the above embodiments and will not be repeated here.

[0046] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0047] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0048] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0049] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0050] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0051] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not 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. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0053] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0054] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0055] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A motor and oil pump connection device for connecting a motor (100) and an oil pump (200), characterized in that, include: The flange sleeve (1) is a hollow cylinder, including an upper end face (11) and a lower end face (12), wherein, The upper end face (11) has a plurality of first bolt holes (13) evenly distributed around its circumference. The upper end face (11) is used to be bolted to the end face of the motor (100) through the plurality of first bolt holes (13). The lower end face (12) is provided with a plurality of second bolt holes (14), and the lower end face (12) is used to be bolted to the end face of the oil pump (200) through the plurality of second bolt holes (14); The coupling (2) is located inside the flange sleeve (1) and is used to fix the motor shaft and the oil pump shaft.

2. The motor and oil pump connection device according to claim 1, characterized in that, The upper end face (11) includes a motor positioning groove (15) for positioning the motor (100). The lower end face (12) includes an oil pump positioning groove (16) for positioning the oil pump (200).

3. The motor and oil pump connection device according to claim 1, characterized in that, The flange sleeve (1) has several side openings (17) on its side. The side opening (17) is detachably connected to a maintenance plate (3).

4. The motor and oil pump connection device according to claim 3, characterized in that, The inspection plate (3) includes an array of observation holes (31).

5. The motor and oil pump connection device according to claim 1, characterized in that, Multiple circumferentially distributed reinforcing ribs (4) are provided between the upper end face (11) and the side of the flange sleeve (1).

6. The motor and oil pump connection device according to claim 3, characterized in that, The coupling (2) is a plum blossom coupling, including: The first toothed cylindrical column (21) is used to fix and connect the motor shaft; The second toothed cylindrical column (22) is used to fix and connect the oil pump shaft; Plum blossom elastic pad (23), among which, The teeth of the first toothed cylindrical column (21) and the teeth of the second toothed cylindrical column (22) mesh with each other. The plum blossom elastic pad (23) is located between the teeth of the first toothed cylindrical column (21) and the teeth of the second toothed cylindrical column (22).

7. The motor and oil pump connection device according to claim 6, characterized in that, The first toothed cylindrical column (21) includes: The first gap (211) is located on the diameter line of the first toothed cylindrical column (21). The third bolt hole (212) is perpendicular to the first gap (211); The second toothed cylindrical column (22) includes: The second gap (221) is located on the diameter line of the second toothed cylindrical column (22). The fourth bolt hole (222) is perpendicular to the second gap (221).

8. The motor and oil pump connection device according to claim 7, characterized in that, The openings of the third bolt hole (212) and the fourth bolt hole (222) both face the side opening (17).

9. The motor and oil pump connection device according to claim 7, characterized in that, The first toothed cylindrical column (21) has several fifth bolt holes (213) at one end facing the motor (100); The second toothed cylindrical column (22) has several sixth bolt holes (223) at the end facing the oil pump (200).

10. A tractor unit comprising a motor (100) and an oil pump (200), characterized in that, The motor (100) and the oil pump (200) include a motor and oil pump connection device as described in any one of claims 1-9.

Images