A partitioned block structure reducer housing and reducer

Abstract

The utility model relates to a kind of partition block structure's reducer shell and reducer, the shell includes main casing, the main casing is equipped with partition rib, the partition rib is enclosed into oil stirring area with the space of gear set installation in main casing, the outer contour distribution of the partition rib is consistent with gear set;The partition rib includes first sub-partition rib and second sub-partition rib, one end of the first sub-partition rib connects the top side of main casing, the other end connects the bottom side of main casing, the second sub-partition rib is below gear set, and one end of the second sub-partition rib connects first sub-partition rib, and the other end is fixed in the bottom side of main casing.Compared with prior art, the utility model has the advantages that oil stirring space is small, oil circulation and efficiency are high.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer structure, and in particular to a speed reducer housing and speed reducer with a segmented block structure. Background Technology

[0002] A speed reducer, also known as a gearbox, is used when the output speed or torque adjustment range of a power source cannot meet the input requirements of the demand side. By adding a speed reducer, the output speed and torque of the power source can be changed at a fixed speed ratio to meet the adaptation needs of more vehicles.

[0003] Currently, most automobiles use differentials that directly connect to the half-shafts or wheel-side reducers that directly connect to the drive tires. Because high-speed motors have excessively high output speeds, they cannot be directly connected to existing low-to-medium speed input transmissions. Furthermore, the interface of a high-speed motor differs significantly in size from that of a traditional low-speed transmission, making compatibility difficult. Therefore, if a high-speed motor in a car needs to be used with an existing low-to-medium speed input transmission, a reducer must be added between the two for connection.

[0004] To ensure the service life and safety of the reduction gears, lubricating oil needs to be installed inside the gearbox to provide lubrication for gear meshing and transmission. For example... Figure 1 As shown, the existing reducer housing has a large gear churning space, slow oil circulation, large oil filling volume, large churning loss, and low efficiency. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art, such as large oil churning space, slow oil circulation, large oil filling volume and large oil churning loss, and to provide a gearbox housing and gearbox with a partitioned structure.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] This solution provides a reducer housing with a partitioned structure, including a main housing. The main housing has partition ribs that enclose the space inside the main housing where the gear set is installed into an oil stirring area. The partition ribs are distributed in accordance with the outer contour of the gear set.

[0008] The partition rib includes a first sub-partition rib and a second sub-partition rib. One end of the first sub-partition rib is connected to the top side of the main housing, and the other end is connected to the bottom side of the main housing. The second sub-partition rib is located below the gear set, and one end of the second sub-partition rib is connected to the first sub-partition rib, while the other end is fixed to the bottom side of the main housing.

[0009] Preferably, the side of the first sub-section rib away from the oil stirring area forms a ventilation area with the inner wall of the main shell.

[0010] Preferably, the first sub-section rib includes a first straight segment, an arc segment, and a second straight segment connected in sequence; one end of the first straight segment is connected to the top of the main housing, and the other end is close to the gear set; the arc segment conforms to the outer contour of the gear and is located on the side of the gear set away from meshing; one end of the second straight segment is connected to the bottom of the main housing.

[0011] Preferably, the partition rib further includes a third sub-partition rib, which is located within the ventilation area, and one end of the third sub-partition rib is connected to the first sub-partition rib, while the other end is connected to the main housing.

[0012] Preferably, there are multiple third sub-section ribs, and each third sub-section rib is arranged in a radial array around the arc segment.

[0013] Preferably, one end of the second sub-section rib is connected to the junction of the arc segment and the straight segment.

[0014] Preferably, the side of the second straight segment away from the ventilation area, the side of the second sub-section rib away from the oil stirring area, and the inner wall of the main casing form the oil pan area.

[0015] Preferably, the oil pan area is provided with an oil pump inlet and a motor return port.

[0016] Preferably, bolt holes are provided on the second straight segment, the second sub-section rib, and the oil pan area, and the bolt holes are distributed in a triangular array; an oil baffle plate covering the oil pump inlet and the motor return port is provided on the oil pan area, and the oil baffle plate is fixed by bolts, the bolts being threaded to the bolt holes.

[0017] This solution also provides a speed reducer, which includes at least a speed reducer housing with a segmented block structure.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] (1) The proposed partitioned reducer housing design isolates the area within the main housing used for gear assembly installation using partition ribs, which, together with the inner wall of the main housing, enclose an oil churning area. After isolation, the oil churning area is much smaller than the entire housing cavity. Compared to existing reducer housings, this effectively reduces the oil churning space in the gear area, allowing the oil to flow back quickly after being churned, thereby reducing the amount of oil needed and improving operating efficiency. Furthermore, it reduces the amount of oil needed and oil churning losses, thus lowering costs.

[0020] (2) This scheme separates the ventilation area and the oil stirring area in the deceleration housing through a partitioned design, which can reduce the impact of gear oil stirring on the oil in the oil pan, and make it easier for the oil pump to suck in air when it draws in oil, resulting in better motor cooling effect.

[0021] (3) This solution can deliver oil from the oil pan to the motor through the oil pump inlet in the separated oil pan area, and then return the oil from the motor to the oil pan through the motor return port, thereby realizing the circulation of oil for motor lubrication and realizing the function of the oil pan. The partitioning of lubricating oil can effectively avoid the air bubbles generated by gear stirring oil from affecting the oil pump suction, which is beneficial to the oil pump not easily sucking air bubbles when suctioning oil, making the motor cooling effect better. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the existing reducer housing.

[0023] Figure 2 A schematic diagram of the structure of the reducer housing provided by this utility model;

[0024] Figure 3 A schematic diagram of the structure for installing an oil baffle plate in the oil pan area according to this utility model;

[0025] In the diagram: 1. Main casing; 2. Oil stirring area; 3. Ventilation area; 4. Oil pan area; 5. Motor oil return port; 6. Bolt hole; 7. Oil pump inlet; 8. Oil baffle; 9. Bolt; 11. First sub-section rib; 12. Second sub-section rib; 13. Third sub-section rib; 111. First straight segment; 112. Arc segment; 113. Second straight segment. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments 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. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] 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.

[0029] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They 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. Therefore, they should not be construed as limitations on this utility model.

[0030] It should be noted that 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0031] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply 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.

[0032] Example 1

[0033] like Figure 2 As shown, this embodiment provides a reducer housing with a partitioned structure, including a main housing 1. The main housing 1 is provided with partition ribs, which enclose the space inside the main housing 1 where the gear set is installed to form an oil stirring area 2. The partition ribs are distributed in accordance with the outer contour of the gear set.

[0034] The partition ribs include a first sub-partition rib 11 and a second sub-partition rib 12. One end of the first sub-partition rib 11 is connected to the top side of the main housing 1, and the other end is connected to the bottom side of the main housing 1. The second sub-partition rib 12 is located below the gear set, and one end of the second sub-partition rib 12 is connected to the first sub-partition rib 11, while the other end is fixed to the bottom side of the main housing 1.

[0035] The first sub-section rib 11 and the second sub-section rib 12 enclose the oil stirring area 2 within the main housing 1, and the ribs are designed to fit as closely as possible to the outer contour of the reduction gear set, further reducing unnecessary oil stirring space. The oil stirring area, isolated by the ribs, is much smaller than the entire housing cavity, allowing the oil to flow back quickly after stirring, thereby reducing the amount of oil needed and improving operating efficiency.

[0036] In this embodiment, the side of the first sub-section rib 1 furthest from the oil-stirring area 2 and the inner wall of the main housing 1 form a ventilation area 3. Separating the oil-stirring area from the ventilation area helps prevent air from being drawn in when the oil pump is drawing in oil, resulting in better motor cooling.

[0037] Furthermore, the first sub-section rib 1 includes a first straight segment 111, an arc segment 112, and a second straight segment 113 connected in sequence; one end of the first straight segment 111 is connected to the top of the main housing 1, and the other end is close to the gear set; the arc segment 112 fits the outer contour of the gear and is located on the side of the gear set away from meshing; one end of the second straight segment 113 is connected to the bottom of the main housing 1.

[0038] In this embodiment, the partition rib also includes a third sub-partition rib 13, which is located within the ventilation area 3. One end of the third sub-partition rib 13 is connected to the first sub-partition rib 11, and the other end is connected to the main housing 1. There are four third sub-partition ribs 13, and each third sub-partition rib 13 is arranged in a radial array around the arc segment 112.

[0039] By setting multiple longitudinal third sub-section ribs 13 around the first sub-section rib 11, the reliability and stability of the first sub-section rib 11 structure are ensured.

[0040] In this embodiment, one end of the second sub-section rib 12 is connected to the junction of the arc segment 12 and the second straight segment 113.

[0041] Specifically, the side of the second straight segment 113 away from the ventilation area 3, the side of the second sub-section rib 12 away from the oil stirring area 2, and the inner wall of the main casing 1 form the oil pan area 4. An oil pump inlet 7 and a motor return port 5 are provided within the oil pan area 4. In this embodiment, two motor return ports are provided within the oil pan area 4.

[0042] like Figure 2 As shown, bolt holes 6 are provided on the second straight segment 113, the second sub-section rib 12, and the oil pan area 4. The bolt holes are distributed in a triangular array. An oil baffle 8 covering the oil pump inlet 7 and the motor return port 5 is provided on the oil pan area 4. The oil baffle 8 is fixed by bolts 9, and the bolts 9 are threaded to the bolt holes 6.

[0043] The lubricating oil in the oil pan can be delivered to the motor through the oil pump inlet 7, and the lubricating oil in the motor can flow back into the oil pan through the two motor return ports 5, thus realizing the circulation of oil for motor lubrication.

[0044] Example 2

[0045] This embodiment is basically the same as the previous embodiment, except that it provides a speed reducer, including at least the speed reducer housing with a segmented structure as described in Embodiment 1. Using a segmented speed reducer housing can effectively reduce the amount of oil added inside the speed reducer, thereby reducing oil churning losses and costs.

[0046] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A reducer housing with a segmented structure, comprising a main housing (1), characterized in that, The main housing (1) is provided with partition ribs, which enclose the space inside the main housing (1) where the gear set is installed to form an oil stirring area (2). The partition ribs are distributed in accordance with the outer contour of the gear set. The partition ribs include a first sub-partition rib (11) and a second sub-partition rib (12). One end of the first sub-partition rib (11) is connected to the top side of the main housing (1), and the other end is connected to the bottom side of the main housing (1). The second sub-partition rib (12) is located below the gear set, and one end of the second sub-partition rib (12) is connected to the first sub-partition rib (11), and the other end is fixed to the bottom side of the main housing (1).

2. The reducer housing with a segmented block structure according to claim 1, characterized in that, The side of the first sub-section rib (1) away from the oil stirring area (2) forms a ventilation area (3) with the inner wall of the main shell (1).

3. The reducer housing with a segmented block structure according to claim 2, characterized in that, The first sub-section rib (1) includes a first straight segment (111), an arc segment (112), and a second straight segment (113) connected in sequence; one end of the first straight segment (111) is connected to the top of the main housing (1), and the other end is close to the gear set; the arc segment (112) fits the outer contour of the gear and is located on the side of the gear set away from meshing; one end of the second straight segment (113) is connected to the bottom of the main housing (1).

4. The reducer housing with a segmented block structure according to claim 3, characterized in that, The partition rib also includes a third sub-partition rib (13), which is located in the ventilation area (3), and one end of the third sub-partition rib (13) is connected to the first sub-partition rib (11), and the other end is connected to the main shell (1).

5. A reducer housing with a segmented block structure according to claim 4, characterized in that, The number of the third sub-section ribs (13) is multiple, and each third sub-section rib (13) is arranged in a radial array around the arc segment (112).

6. A reducer housing with a segmented block structure according to claim 3, characterized in that, One end of the second sub-section reinforcement (12) is connected to the junction of the arc segment (12) and the second straight segment (113).

7. A reducer housing with a segmented block structure according to claim 6, characterized in that, The second straight segment (113) on the side away from the ventilation area (3), the second sub-section rib (12) on the side away from the oil stirring area (2), and the inner wall of the main shell (1) form the oil pan area (4).

8. A reducer housing with a segmented block structure according to claim 7, characterized in that, The oil pan area (4) is provided with an oil pump inlet (7) and a motor return port (5).

9. A reducer housing with a segmented block structure according to claim 8, characterized in that, Bolt holes (6) are provided on the second straight segment (113), the second sub-section rib (12), and the oil pan area (4), and the bolt holes are distributed in a triangular array; the oil pan area (4) is provided with an oil baffle (8) covering the oil pump inlet (7) and the motor return port (5), the oil baffle (8) is fixed by bolts (9), and the bolts (9) are threaded to the bolt holes (6).

10. A speed reducer, characterized in that, It includes at least a reducer housing with a segmented block structure as described in any one of claims 1-9.

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