Bidirectionally assembled speed reducer shell, speed reducer and vehicle

Abstract

The invention discloses a two-way assembly speed reducer shell, a speed reducer and a vehicle, and belongs to the technical field of vehicle accessories, and the shell comprises an outer shell and a speed reducer input shaft; the speed reducer input shaft is located in the shell, and the front end of the speed reducer input shaft extends out of the shell. Bearings are arranged between the rear end of the speed reducer input shaft and the shell and between the front end of the speed reducer input shaft and the shell; a baffle is arranged on the side face of the bearing on the axial force bearing side and connected with the shell. The baffle is arranged on the side face of the bearing on the side where the bearing bears the axial force, part of the axial force is shared by the baffle, and the stress performance of the speed reducer is improved.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle parts technology, and in particular to a bidirectionally assembled reducer housing, reducer, and vehicle. Background Technology

[0002] An electric drive system for automobiles consists of a motor and a reducer. The reducer converts the motor's speed and torque into the speed and torque required by the wheels. By installing bearings on the reducer's input shaft, the stability of the reducer's input shaft rotation is ensured. Depending on the arrangement of the electric drive system, the bearings on the reducer's input shaft also need to bear axial forces.

[0003] In related technologies, the bearing capacity of the bearing on the input shaft of the reducer is increased by improving the bearing grade and changing the bearing model. This results in a corresponding increase in the size of the reducer housing, the volume of the electric drive assembly, and the weight of the reducer, which is not conducive to the cost optimization of the reducer and the arrangement of the reducer on the vehicle. Summary of the Invention

[0004] This disclosure provides a bidirectional assembly reducer housing, reducer, and vehicle. By providing a baffle on the bearing side where the bearing bears the axial force, part of the axial force is shared by the baffle, thereby improving the force-bearing performance of the reducer.

[0005] To achieve the above objectives, the present disclosure adopts the following technical solution: In a first aspect, this disclosure provides a bidirectionally assembled reducer housing, comprising: an outer shell and a reducer input shaft; The reducer input shaft is located inside the housing, and the front end of the reducer input shaft extends out of the housing; Bearings are installed between the rear end of the input shaft of the reducer and the housing, and between the front end of the input shaft of the reducer and the housing; A baffle is installed on the side of the bearing on the side where the axial force is received, and the baffle is connected to the housing.

[0006] In one possible implementation, the baffle is annular, with the inner diameter of the annular baffle being smaller than the inner diameter of the outer ring of the bearing on the side where the bearing bears the axial force, and the outer diameter of the annular baffle being larger than the inner diameter of the outer ring of the bearing on the side where the bearing bears the axial force. The annular baffle is coaxially arranged with the bearing on the side where the bearing bears the axial force.

[0007] In one possible implementation, the baffle is positioned between the two bearings.

[0008] In one possible implementation, the housing includes a front housing and a rear housing; The reducer input shaft is located inside the front housing, with the rear end of the reducer input shaft extending into the rear housing and the front end of the reducer input shaft extending out from the front housing. The front and rear housings are connected by a connector.

[0009] In one possible implementation, a first threaded hole is provided on the front housing, and a second threaded hole is provided on the rear housing; The first and second threaded holes form a channel through which the connector passes; One end of the connector is provided with a thread that is adapted to the first threaded hole, and the other end of the connector is provided with a thread that is adapted to the second threaded hole; The connector is threadedly connected to the first threaded hole and the second threaded hole.

[0010] In one possible implementation, the thread direction in the first threaded hole is opposite to the thread direction in the second threaded hole.

[0011] In one possible implementation, one end of the connector is provided with a head, the diameter of which is larger than the diameter of the first threaded hole and the second threaded hole.

[0012] In one possible implementation, when the bearing on the side bearing that bears the axial force is the bearing between the rear end of the reducer input shaft and the housing, the end is located on the front housing side; when the bearing on the side bearing that bears the axial force is the bearing between the front end of the reducer input shaft and the housing, the end is located on the rear housing side.

[0013] Secondly, this disclosure also provides a speed reducer, including a bidirectionally assembled speed reducer housing provided in the first aspect.

[0014] Thirdly, this disclosure also provides a vehicle including a bidirectionally mounted reducer housing as provided in the first aspect.

[0015] The technical solution provided in this disclosure includes at least the following beneficial effects: This disclosure provides a bidirectional assembly reducer housing, reducer, and vehicle. The reducer housing has a baffle on the side of the bearing on the side where the bearing bears the axial force. The baffle is connected to the outer shell to share the axial force that the bearing bears and reduce the axial force applied to the other bearing, thereby improving the load-bearing performance of the reducer. The structure is simple and the size is small.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. In the drawings: Figure 1 This is a schematic diagram of the structure of a bidirectional assembled reducer housing shown in an embodiment of this disclosure; Figure 2 This is a schematic diagram of the baffle installation shown in an embodiment of this disclosure; Figure 3 This is a first schematic diagram showing the connection of the connectors according to an embodiment of this disclosure; Figure 4 This is a second schematic diagram showing the connection of the connectors according to an embodiment of this disclosure.

[0018] Legend: 1. Outer shell; 2. Reducer input shaft; 3. Front bearing; 4. Rear bearing; 5. Baffle; 6. Bearing housing; 7. Spindle; 8. First step shaft; 9. Second step shaft; 11. Front housing; 12. Rear housing; 13. First threaded hole; 14. Second threaded hole; 15. Connectors; 16. End.

[0019] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be further described in detail below with reference to the accompanying drawings.

[0021] It should be noted that the terminology used in the embodiments of this disclosure is for the purpose of explaining the embodiments of this disclosure only and is not intended to limit this disclosure. Unless otherwise defined, the technical or scientific terms used herein should be understood in their ordinary sense by one of ordinary skill in the art to which this disclosure pertains.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] The terms “first,” “second,” “third,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one.

[0024] The word “includes” or similar terms means that the elements or objects preceding “includes” or “include” cover the elements or objects listed after “includes” or “include” or their equivalents, and do not exclude other elements or objects.

[0025] In this disclosure, terms such as "upper," "lower," "left," "right," "front," "back," "vertical," "horizontal," "side," and "bottom" are used only to indicate relative positional relationships. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings. These terms are only used to facilitate the description of the structural relationships of the various components or elements in this disclosure and do not specifically refer to any component or element in this disclosure. They should not be construed as limitations on this disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0026] In this disclosure, terms such as "fixed connection," "connected," and "linked" should be interpreted broadly and are not limited to physical or mechanical connections. They can indicate fixed connections, integral connections, or detachable connections; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can determine the specific meaning of the above terms in this disclosure based on the specific circumstances, and they should not be construed as limitations on this disclosure.

[0027] Where there is no conflict, the embodiments and features described herein can be combined with each other.

[0028] Automotive electric drives consist of a motor and a reducer. The reducer converts the motor's speed and torque into the speed and torque required by the wheels. The gearbox is a crucial component in electric vehicles, used to transmit the motor's power to the wheels. Bearings are installed on the reducer's input shaft to ensure its rotational stability. Currently, the automotive industry experiences short update cycles, rapid product replacements, and high cost pressures. Electric drive layouts are flexible and diverse, with two arrangements: front-axle and rear-axle. Correspondingly, the motor is positioned to the left and right of the reducer. Depending on the layout, the bearings on the reducer's input shaft may bear axial forces in different directions, and the bearings primarily bearing these axial forces differ. For example, when the axial force points from the motor side to the reducer side, the reducer-side bearing bears a larger axial force; conversely, when the axial force points from the reducer side to the motor side, the motor-side bearing bears a larger axial force. This causes changes in the magnitude and direction of forces on the motor and reducer in the electric drive assembly, resulting in complex stress distribution and increased design difficulty.

[0029] To cope with the complex stress conditions of reducer bearings, related technologies generally improve the load-bearing capacity of the bearings on the reducer input shaft by upgrading the grade of the bearings and changing the bearing model, thereby meeting the stress requirements of the reducer. However, the bearing selection becomes larger, which leads to a corresponding increase in the size of the reducer housing, the volume of the electric drive assembly, and the weight. This is not conducive to optimizing the cost and efficiency of the reducer, nor is it conducive to the arrangement of the reducer on the vehicle.

[0030] In view of the above-mentioned technical problems, the present disclosure provides a bidirectional assembly reducer housing, in which a baffle is provided on the bearing side where the bearing bears the axial force, so as to share part of the axial force, reduce the axial force applied to the rear bearing, and improve the force performance of the reducer.

[0031] like Figures 1-4 As shown, this embodiment of the present disclosure provides a bidirectionally assembled reducer housing, including: an outer shell 1 and a reducer input shaft 2; The reducer input shaft 2 is located inside the housing 1, and the front end of the reducer input shaft 2 extends out from the housing 1; Bearings are installed between the rear end of the input shaft 2 of the reducer and the housing 1, and between the front end of the input shaft 2 of the reducer and the housing 1. A baffle 5 is provided on the side of the bearing on the side where the axial force is received, and the baffle 5 is connected to the outer shell 1.

[0032] This disclosure provides a bidirectional assembly reducer housing, in which the reducer input shaft 2 can rotate around its own axis, thereby realizing the power transmission between the motor and the reducer. By setting bearings at the front and rear ends of the reducer output shaft 2 respectively, the smoothness and stability of the reducer input shaft 2 rotating around itself are improved. Depending on the installation direction of the reducer, the bearings in the reducer that mainly bear axial force are different. In order to improve the reducer's ability to bear axial force, a baffle 5 is set on the side of the bearing on the side where the axial force is borne in the reducer housing. The baffle 5 is connected to the housing 1 to prevent the reducer input shaft 2 from moving axially, thereby reducing the axial force applied to the bearing on the rear side of the axial force and preventing overload damage to the bearing on the rear side of the axial force, thereby improving the load-bearing performance of the reducer. The structure is simple and the size is small, which is conducive to the optimization of reducer cost and efficiency, and facilitates the installation of the transmission on the vehicle.

[0033] Among them, baffle 5 is set between the two bearings.

[0034] The baffle 5 is annular. The inner diameter of the annular baffle is smaller than the inner diameter of the outer ring of the bearing on the side where the axial force originates, while the outer diameter of the annular baffle is larger than the inner diameter of the outer ring of the bearing on the side where the axial force originates. The annular baffle is coaxially arranged with the bearing on the side where the axial force originates, so that the inner end of the baffle 5 is located at the outer ring of the bearing on the side where the axial force originates. When the axial force is directed from this bearing to another bearing, the baffle 5 prevents the bearing from moving axially, thereby effectively preventing the input shaft 2 of the reducer from moving axially. This ultimately reduces the axial force applied to the other bearing, thus preventing the other bearing from being overloaded and damaged, and improving the load-bearing performance of the reducer.

[0035] In some examples, in order to install and fix the bearings in the housing 1, two bearing seats are provided in the housing 1, and the two bearings on the input shaft 2 of the reducer are respectively installed in the two bearing seats. Correspondingly, the baffle 5 is fixed to the bearing seat where the bearing bearing bearing the axial force is located.

[0036] In order to improve the axial force sharing effect of baffle 5, the side of baffle 5 is limited to contact and connect with the side of the bearing housing where the bearing on the side of bearing bearing bearing axial force is located, and to contact or be spaced at a set distance from the side of the bearing on the side of bearing bearing bearing axial force facing another bearing, so as to share the axial force applied to the bearing on the side of bearing bearing bearing axial force.

[0037] like Figure 2As shown, the reducer input shaft 2 includes a main shaft 7, the front end of the main shaft 7 is connected to a first stepped shaft 8, and the rear end of the main shaft 7 is connected to a second stepped shaft 9. The first stepped shaft 8, the second stepped shaft 9 and the main shaft 7 are coaxially arranged, and the diameters of the first stepped shaft 8 and the second stepped shaft 9 are both smaller than the diameter of the main shaft 7. One bearing is sleeved on the first stepped shaft 8, and the other bearing is sleeved on the second stepped shaft 9. A baffle 5 is sleeved on the stepped shaft where the bearing on the side bearing bears the axial force is located, and one side of the baffle 5 is in contact with the end face of the bearing seat on the side bearing bears the axial force, which faces the other bearing.

[0038] In addition, one end of the first stepped shaft 8 is connected to the main shaft 7, and the other end of the first stepped shaft 8 is connected to the input end of the reducer input shaft 2. The first stepped shaft 8 serves as the front end of the reducer input shaft 2, and the second stepped shaft 9 serves as the rear end of the reducer input shaft 2.

[0039] like Figure 1 , Figure 2 As shown, the bearing at the front end of the input shaft 2 of the reducer is represented by the front bearing 3, and the bearing at the rear end of the input shaft 2 of the reducer is represented by the rear bearing 4. The front bearing 3 is fitted onto the first stepped shaft 8, and the rear bearing 4 is fitted onto the second stepped shaft 9. In order to fix the front bearing 3 and the rear bearing 4, two bearing seats are provided. The front bearing 3 is installed in one bearing seat, and the rear bearing 4 is installed in the other bearing seat. The bearing seats where the front bearing 3 and the rear bearing 4 are located are connected to the housing 1 to fix the front bearing 3 and the rear bearing 4.

[0040] Figure 1 , Figure 2 The illustrations also depict two scenarios: baffle 5 is installed on the side of the front bearing 3 and baffle 5 is installed on the side of the rear bearing 4. However, in actual applications, baffle 5 is selected based on the direction of the actual axial force, either baffle 5 is installed only on the side of the front bearing 3 or only on the side of the rear bearing 4. Specifically: When the bearing bears an axial force pointing towards the reducer side, the direction of the axial force is from left to right. The bearing on the side bearing the axial force is the front bearing 3. A baffle 5 is provided on the side of the front bearing 3 facing the rear bearing 4. The baffle 5 is sleeved on the first stepped shaft 8, and the baffle 5 is located between the bearing housing where the front bearing 3 is located and the main shaft 7. One side of the baffle 5 contacts the end face of the bearing housing where the front bearing 3 is located facing the rear bearing 4, and the inner diameter of the baffle 5 is limited to being smaller than the outer diameter of the front bearing 3, while the outer diameter of the baffle 5 is larger than the outer diameter of the front bearing 3. The baffle 5 is connected to the bearing housing where the front bearing 3 is located, so that the front bearing 3 and the reducer input shaft 2 can be prevented from moving towards the rear bearing 4 through the baffle 5, thereby reducing the axial force applied to the rear bearing 4, preventing the rear bearing 4 from being overloaded, and thus improving the load-bearing capacity of the reducer.

[0041] When the bearing bears an axial force pointing towards the motor side, the direction of the axial force is from right to left. The bearing located on the side bearing the axial force is the rear bearing 4. A baffle 5 is provided on the side of the rear bearing 4 facing the front bearing 3, and the baffle 5 is sleeved on the second stepped shaft 9. The baffle 5 is located between the bearing housing where the rear bearing 4 is located and the main shaft 7. One side of the baffle 5 contacts the end face of the bearing housing where the rear bearing 4 is located facing the front bearing 3, and the inner diameter of the baffle 5 is limited to being smaller than the outer diameter of the rear bearing 4, while the outer diameter of the baffle 5 is larger than the outer diameter of the rear bearing 4. The baffle 5 is connected to the bearing housing where the rear bearing 4 is located, so that the rear bearing 4 and the reducer input shaft 2 can be prevented from moving towards the front bearing 3 under axial force, thereby reducing the axial force applied to the front bearing 3, preventing the front bearing 3 from being overloaded, and thus improving the load-bearing capacity of the reducer.

[0042] In some examples, the baffle 5 is fixed to the corresponding bearing seat by bolts, which facilitates the installation and removal of the baffle 5.

[0043] For example, the baffle 5 is fixed to the corresponding bearing seat by multiple bolts, and the multiple bolts are evenly distributed around the circumference to ensure the stability of the baffle 5.

[0044] Preferably, the baffle 5 is fixed to the corresponding bearing seat by three bolts.

[0045] In some examples, housing 1 includes a front housing 11 and a rear housing 12; The reducer input shaft 2 is located inside the front housing 11, and the rear end of the reducer input shaft 2 extends into the rear housing 12, while the front end of the reducer input shaft 2 extends out from the front housing 11. The front housing 11 and the rear housing 12 are connected by a connector 15.

[0046] By dividing the outer casing 1 into two parts, a front casing 11 and a rear casing 12, it is easier to install the gears and baffles inside the outer casing 1.

[0047] like Figure 1 As shown, the rear bearing 4 and the bearing housing containing the rear bearing 4 are located in the rear housing 12, while the front bearing 3 and the bearing housing containing the front bearing 3 are located in the front housing 11.

[0048] By setting the outer casing 1 as a front casing 11 and a rear casing 12, it is convenient to install the reducer input shaft 2, front bearing 3, rear bearing 4 and baffle 5.

[0049] In some examples, a first threaded hole 13 is provided on the front housing 11, and a second threaded hole 14 is provided on the rear housing 12; The first threaded hole 13 and the second threaded hole 14 form a channel through which the connector 15 passes; One end of the connector 15 is provided with a thread that is adapted to the first threaded hole 13, and the other end of the connector 15 is provided with a thread that is adapted to the second threaded hole 14. The connector 15 is threadedly connected to the first threaded hole 13 and the second threaded hole 14.

[0050] By providing a first threaded hole 13 and a second threaded hole 14, and by providing threads on the connector 15, a threaded connection is achieved between the connector 15 and the first threaded hole 13 and the second threaded hole 14, thereby improving the convenience of connection.

[0051] When installing the reducer housing, the baffle 5 should be fixed to the bearing housing on the side where the bearing bears the axial force. Based on the current assembly process and production line, when fixing the baffle 5 to the bearing housing on the side where the bearing bears the axial force, the housing containing the bearing housing needs to be fixed, and the bearing and the bearing housing on the side where the bearing bears the axial force need to be installed in the housing. Then, the baffle 5 is fixedly installed on the bearing housing. Next, the reducer input shaft 2, the other bearing, and the bearing housing containing the other bearing are installed. Finally, the other half of the housing is fastened to the housing containing the baffle 5, and the two halves of the housing are connected together to complete the assembly of the reducer housing.

[0052] In general, when installing the reducer housing, the bearing located on the side where the axial force originates is determined first, based on the direction of the axial force. The baffle 5 is then fixed on the bearing housing of the bearing on the side where the axial force originates. After that, the two halves of the housing are assembled from the other end of the bearing housing. The connecting parts are then screwed into the first threaded hole 13 and the second threaded hole 14 from the same direction. In order to cope with axial forces in different directions, the baffle 5 is installed on different bearing sides, which causes the assembly of the two halves of the housing to change and be adjusted accordingly. The adjustment of the assembly direction requires corresponding adjustments to the bolt fastener design on the housing, and the assembly process and clamping positioning on the production line also need to be changed. To prevent the threaded fasteners from changing the machining direction of the housing during assembly under axial forces in different directions, the thread direction in the first threaded hole 13 is defined to be opposite to that in the second threaded hole 14. The two threaded sections on the corresponding connector 15 also have opposite directions. By providing bidirectional threads on the connector 15, the connector 15 can be threadedly locked to the first threaded hole 13 and the second threaded hole 14 without the need for additional nuts or other fasteners to lock the connector 15. This improves the convenience of assembling and connecting the reducer housing, facilitates installation, and increases installation efficiency. It also allows the front housing 11 and the rear housing 12 to be locked from any direction without changing the machining of the housing. This reducer structure, which satisfies the same gear shaft scheme for both forward and reverse rotation, is simple in structure, low in cost, and highly flexible.

[0053] In some examples, one end of the connector 15 is provided with a head 16, the diameter of which is larger than the diameter of the first threaded hole 13 and the second threaded hole 14.

[0054] By providing an end cap 16 at the end of the connector 15, it is convenient to tighten the connector 15.

[0055] In some examples, when the bearing on the side bearing that bears the axial force is the bearing between the rear end of the reducer input shaft 2 and the housing 1, the end 16 is located on the side of the front housing 11; when the bearing on the side bearing that bears the axial force is the bearing between the front end of the reducer input shaft 1 and the housing 1, the end 16 is located on the side of the rear housing 12.

[0056] like Figure 4 As shown, when the bearing bears axial force pointing towards the reducer side, the front bearing 3 is the bearing located on the side where the bearing bears axial force. A baffle 5 is set on the side of the front bearing 3 facing the rear bearing 4. First, the baffle 5 is connected to the bearing seat where the front bearing 3 is located. At this time, the baffle 5, the front bearing 3 and the bearing seat where the front bearing 3 is located are fixed as a whole on the front housing 11. Then, the rear housing 12 is fastened onto the front housing 11 for assembly. Finally, the connecting piece 15 is inserted from the second threaded hole 14 into the first threaded hole 13, and the end 16 is left on one side of the rear housing 12, so as to connect the front housing 11 and the rear housing 12 together.

[0057] like Figure 3 As shown, when the bearing bears axial force pointing towards the motor side, the rear bearing 4, as the bearing located on the side where the axial force comes from, has a baffle 5 set on the side of the rear bearing 4 facing the front bearing 3. First, the baffle 5 is connected to the bearing seat where the rear bearing 4 is located. At this time, the baffle 5, the rear bearing 4, and the bearing seat where the rear bearing 4 is located are fixed as a whole on the rear housing 12. Then, the front housing 11 is snapped onto the rear housing 12 for assembly. Finally, the connector 15 is inserted from the first threaded hole 13 into the second threaded hole 14, and the end 16 is left on one side of the front housing 11, so as to connect the front housing 11 and the rear housing 12 together without changing the structure of each housing and related assembly line.

[0058] This disclosure provides a bidirectional assembly reducer housing. Based on the installation direction of the reducer housing, the direction of the axial force borne by the bearing in the reducer and the bearing located on the side where the axial force originates are determined. A baffle is then provided on the side of the bearing located on the side where the axial force originates, and the baffle is connected to the housing. When the bearing and the reducer input bearing are subjected to axial force, the baffle prevents the bearing and the reducer input shaft from moving along the direction of the axial force, thereby reducing the axial force applied to the other bearing, preventing bearing overload damage, and thus improving the load-bearing performance of the reducer. The structure is simple and does not result in an excessively large reducer size, which facilitates the optimization of the reducer's efficiency and cost, and also facilitates the arrangement of the reducer on the vehicle.

[0059] This disclosure provides a bidirectional assembly reducer housing, which further divides the outer shell into a front housing and a rear housing, and connects the front housing and the rear housing together by a connector. By providing bidirectional threads on the connector and threaded holes on the front housing and the rear housing respectively that are adapted to the threads on the connector, bidirectional assembly of the front housing and the rear housing is achieved. This allows the front housing and the rear housing to be locked together by the connector regardless of which direction the assembly operation is performed. It also satisfies the same gear shaft scheme for both forward and reverse rotation of the reducer structure. The structure is simple, low-cost, and highly flexible. It does not require additional locking nuts or other locking mechanisms to lock and fix the connector, making it convenient to operate.

[0060] This disclosure also provides a speed reducer, including a bidirectionally assembled speed reducer housing provided in this disclosure.

[0061] This disclosure also provides a vehicle including a bidirectionally mounted reducer housing provided in this disclosure.

[0062] The vehicle can be an electric vehicle or a hybrid vehicle.

[0063] This disclosure does not specifically limit the type of vehicle, such as cars, buses, trucks, sport utility vehicles (SUVs), etc.

[0064] The technical solution provided in this disclosure provides a baffle plate on the side of the bearing bearing that bears axial force. The baffle plate is connected to the housing to share the axial force that the bearing bears, thereby preventing the bearing bearing that bears axial force from being overloaded and damaged. This improves the load-bearing performance of the reducer. The structure is simple and the size is small, which is convenient for the reducer to be arranged normally. Furthermore, by setting a connector with a two-way thread, the two-way assembly of the housing is realized. When the baffle plate is installed on different bearing sides, the housing structure and the assembly line tooling structure can be changed to realize the housing closing operation, which is convenient.

[0065] Although the specific embodiments of this disclosure have been described above in conjunction with the accompanying drawings, the above descriptions are merely optional embodiments of this disclosure and are not intended to limit the scope of protection of this disclosure. Those skilled in the art should understand that any modifications, equivalent substitutions, improvements, etc., made based on the technical solutions of this disclosure and within the principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A reducer housing with bidirectional assembly, characterized in that, include: Housing and reducer input shaft; The reducer input shaft is located inside the housing, and the front end of the reducer input shaft extends out of the housing; Bearings are installed between the rear end of the input shaft of the reducer and the housing, and between the front end of the input shaft of the reducer and the housing; A baffle is installed on the side of the bearing on the side where the axial force is received, and the baffle is connected to the housing.

2. The reducer housing with bidirectional assembly as described in claim 1, characterized in that, The baffle is annular. The inner diameter of the annular baffle is smaller than the inner diameter of the outer ring of the bearing located on the side where the bearing bears the axial force, and the outer diameter of the annular baffle is larger than the inner diameter of the outer ring of the bearing located on the side where the bearing bears the axial force. The annular baffle is coaxially arranged with the bearing located on the side where the bearing bears the axial force.

3. The reducer housing with bidirectional assembly as described in claim 1, characterized in that, The baffle is positioned between the two bearings.

4. The reducer housing with bidirectional assembly as described in claim 1, characterized in that, The outer casing includes a front casing and a rear casing; The reducer input shaft is located inside the front housing, with the rear end of the reducer input shaft extending into the rear housing and the front end of the reducer input shaft extending out from the front housing. The front and rear housings are connected by a connector.

5. A bidirectionally assembled reducer housing as described in claim 4, characterized in that, A first threaded hole is provided on the front housing, and a second threaded hole is provided on the rear housing; The first and second threaded holes form a channel through which the connector passes; One end of the connector is provided with a thread that is adapted to the first threaded hole, and the other end of the connector is provided with a thread that is adapted to the second threaded hole; The connector is threadedly connected to the first threaded hole and the second threaded hole.

6. A bidirectionally assembled reducer housing as described in claim 5, characterized in that, The thread direction in the first threaded hole is opposite to the thread direction in the second threaded hole.

7. A bidirectionally assembled reducer housing as described in claim 5, characterized in that, One end of the connector is provided with an end cap, the diameter of which is larger than the diameter of the first threaded hole and the second threaded hole.

8. A bidirectionally assembled reducer housing as described in claim 7, characterized in that, When the bearing located on the side bearing the axial force is the bearing between the rear end of the reducer input shaft and the housing, the end is located on the front housing side; when the bearing located on the side bearing the axial force is the bearing between the front end of the reducer input shaft and the housing, the end is located on the rear housing side.

9. A speed reducer, characterized in that, Includes a bidirectionally assembled reducer housing as described in any one of claims 1-8.

10. A vehicle, characterized in that, Includes a bidirectionally assembled reducer housing as described in any one of claims 1-8.

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