An electric power steering mounting bracket

Abstract

The utility model discloses an electric power steering mounting bracket, comprising a main bracket and a sub-bracket that are spliced ​​and combined. A main sleeve and a sub-sleeve are fixed on the main bracket, and the main sleeve is arranged along the axis direction of the steering gear tie rod; the sub-sleeve is vertically distributed with the main sleeve, and the sub-bracket is spliced ​​and combined with one end of the main sleeve in a detachable manner. A ball screw is installed on the steering gear tie rod, and the ball screw is located at the axis position of the main sleeve and passes through the main bracket and the sub-bracket. A transmission seat matching the ball screw is rotatably installed in the main sleeve, and a worm wheel is installed on the transmission seat; a worm matching the worm wheel is rotatably installed in the sub-sleeve. In addition, the bracket also includes a protective sleeve, which is spliced ​​and combined with the sub-sleeve and maintained in a coaxial arrangement, and a power connection between a drive motor and the worm wheel is installed inside. This design effectively improves the operating stability and accuracy of the steering gear, while providing good protection to prevent interference from the external environment.

Description

Technical Field

[0001] The utility model relates to the technical field related to steering gears, in particular to an electric power steering gear mounting bracket. Background Art

[0002] As a common auxiliary steering system in modern cars, the main function of the electric power steering system is to provide additional steering force through the electric motor, thereby reducing the driver's operating burden and improving driving comfort and controllability. With the development of automobile technology, the requirements for electric power steering systems are getting higher and higher, especially in terms of system stability and reliability.

[0003] In the electric power steering system, the mounting bracket of the steering gear plays a vital role. Traditional steering gear mounting brackets mostly adopt a fixed structure. Although this structure is simple, it is difficult to ensure accurate centering during installation, and it may be disturbed by the external environment during use, thus affecting the stability and reliability of the steering system. In addition, the disassembly and maintenance of traditional brackets are also cumbersome, which increases the maintenance cost and difficulty.

[0004] In order to improve the performance of the electric power steering, an improved mounting bracket is needed in the market. The bracket should not only ensure the precise centering of the steering gear, but also provide good environmental protection and be easy to operate during maintenance and replacement of parts. Therefore, it is particularly important to design an electric power steering mounting bracket with good assembly and disassembly properties. Utility Model Content

[0005] In view of the above-mentioned deficiencies existing in the prior art, the purpose of the utility model is to provide an electric power steering gear mounting bracket, which can improve the stability, convenience and accuracy of the steering gear installation and operation, and at the same time can effectively protect the steering gear from interference from the external environment.

[0006] The technical solution adopted by the utility model to achieve the above-mentioned purpose is: an electric power steering mounting bracket, including a main bracket and a sub-bracket that are spliced ​​together, the main bracket is fixedly connected to a main sleeve and a sub-sleeve, one end of the main sleeve is fixedly connected to the main bracket and arranged along the axis direction of the steering gear tie rod, the sub-sleeve is vertically distributed with the main sleeve, the main sleeve is connected to the inner cavity of the inner sleeve, and the sub-bracket is spliced ​​and combined with one end of the main sleeve in a detachable manner.

[0007] A ball screw is mounted on the pull rod of the steering gear, and the ball screw is mounted on the axial position of the main sleeve and passes through the main bracket and the auxiliary bracket. A transmission seat matching the ball screw is rotatably mounted in the main sleeve, a worm wheel is mounted on the transmission seat, and a worm matching the worm wheel is rotatably mounted in the auxiliary sleeve.

[0008] It also includes a protective sleeve, which is spliced ​​and combined with the auxiliary sleeve and maintained in a coaxial arrangement. The protective sleeve is equipped with a drive motor that maintains power connection with a worm.

[0009] In some of the implementations, in order to ensure that the main bracket and the auxiliary bracket can be stably installed on the frame and to ensure that the main sleeve and the auxiliary bracket are stably combined, the following technical solutions are provided.

[0010] The main bracket and the auxiliary bracket are respectively fixed with wing seats A and wing seats B, and the wing seats A and wing seats B are respectively provided with assembly through holes A and assembly through holes B; the end of the main sleeve is fixed with an assembly ring seat which is kept in close contact with the auxiliary bracket, and the assembly ring seat is provided with multiple groups of assembly through holes C distributed in a circular array, and the auxiliary bracket is provided with multiple groups of assembly through holes D distributed in a circular array, and the assembly through holes C are coaxially arranged with the assembly through holes D at corresponding positions.

[0011] In some of the implementations, in order to ensure that the ball screw can pass through the main bracket and the auxiliary bracket, ensure that the transmission seat and the worm gear can be stably installed in the main sleeve, and at the same time realize the matching combination of the worm gear and the transmission seat, the following technical solutions are provided.

[0012] The main bracket and the auxiliary bracket are respectively provided with a clearance through hole A and a clearance through hole B, and the clearance through hole A and the clearance through hole B are arranged coaxially. The inner sides of the clearance through hole A and the clearance through hole B are respectively provided with an assembly groove A and an assembly groove B, and the assembly groove A and the assembly groove B are respectively equipped with an installation bearing A and an installation bearing B.

[0013] The two ends of the transmission seat are respectively fixed with an assembly shaft A and an assembly shaft B, and the assembly shaft A and the assembly shaft B are respectively assembled in the mounting bearing A and the mounting bearing B. A step shaft is arranged on the inner side of the assembly shaft A, and a plurality of positioning strips distributed in a circular array are fixed to the outer wall of the step shaft, and the positioning strips are arranged along the axial direction of the step shaft. A positioning through hole which is sleeved on the outer periphery of the step shaft is opened at the axis center of the worm gear, and a positioning groove which is nested and plugged with the positioning strip is opened on the inner wall of the positioning through hole.

[0014] In some of the implementations, in order to ensure that the worm can be stably installed and operated in the auxiliary sleeve and to ensure the fixed combination of the protective sleeve and the auxiliary sleeve, the following technical solutions are provided.

[0015] It also includes an assembly pad arranged between the auxiliary sleeve and the protective sleeve, a connecting through hole is opened at the axis center of the assembly pad, an assembly groove C and an assembly groove D are respectively opened at the axis centers of the auxiliary sleeve and the assembly pad, and mounting bearings C and mounting bearings D are respectively installed in the assembly groove C and the assembly groove D, an assembly shaft C and an assembly shaft D are respectively fixed at both ends of the worm, the assembly shaft C and the assembly shaft D are respectively installed in the installation bearings C and the installation bearings D, and the assembly shaft D passes through the connecting through hole and is arranged in the protective sleeve.

[0016] The outer peripheries of the auxiliary sleeve, the assembly pad seat and the protective sleeve are respectively fixed with ear seats A, B and C, and the assembly ear seats A, B and C are respectively provided with assembly through holes E, F and G for maintaining coaxial arrangement.

[0017] A threaded blind hole is formed on one side of the assembly cushion seat facing the protective sleeve.

[0018] In some of the implementations, in order to ensure that the drive motor can receive the steering signal transmitted by the steering wheel system and control the drive motor to operate according to the set requirements, it is necessary to assemble a controller connected to the drive motor signal in the protective sleeve, and the following technical solution is provided for this.

[0019] The protective sleeve is fixedly connected with an assembly cover which is in communication with the protective sleeve, and the assembly cover is matched with a protective cover.

[0020] Beneficial effects of the utility model:

[0021] 1. Improve stability: The splicing combination design of the main bracket and the auxiliary bracket enables the transmission seat, worm gear and other components to be stably installed in the main sleeve, ensures the stable operation of the internal transmission components of the steering gear, and reduces the interference of the external environment on the system.

[0022] 2. Convenient disassembly and assembly: The auxiliary bracket, main sleeve and protective sleeve are spliced ​​and fixed in a detachable manner, which makes the installation and disassembly process more convenient, reduces the difficulty of maintenance and replacement of parts, and improves maintenance efficiency.

[0023] 3. Effective protection: The design of the protective sleeve and auxiliary sleeve not only protects the drive motor and worm from the influence of the external environment, but also ensures the stability of the power connection of the drive motor, thereby extending the service life of the steering system.

[0024] 4. Precise centering: The structural design of the main bracket and the auxiliary bracket provides a more precise centering function, ensuring the efficiency and reliability of the electric power steering system and improving the driver's operating comfort and steering accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the utility model after being combined with an electric power steering device;

[0027] Figure 3 It is a schematic diagram of the structure of the utility model in a cutaway state;

[0028] Figure 4 A schematic diagram of the structure of the main support and its connected components in a cutaway state;

[0029] Figure 5 It is a schematic diagram of the structure of the assembly cushion;

[0030] Figure 6 It is a schematic diagram of the structure of the protective sleeve and the components installed thereon;

[0031] Figure 7 It is a schematic diagram of the structure of the matching combination of various components of the electric power steering;

[0032] Figure 8 It is a schematic diagram of the structure of the transmission seat, worm gear and matching bearing in the disassembled state;

[0033] Fig. 9 This is a schematic diagram of the structure of the worm, drive motor and matching bearings in a disassembled state;

[0034] Fig.10 for Fig. 9 Schematic diagram of the structure from another perspective.

[0035] In the figure: 1 main bracket, 11 wing seat A, 12 assembly through hole A, 13 clearance through hole A, 14 assembly sink A, 15 installation bearing A, 2 auxiliary bracket, 21 wing seat B, 22 assembly through hole B, 23 assembly through hole D, 24 clearance through hole B, 25 assembly sink B, 26 installation bearing B, 3 main sleeve, 31 assembly ring seat, 32 assembly through hole C, 4 auxiliary sleeve, 41 assembly sink C, 42 installation bearing C, 43 ear seat A, 44 assembly through hole E, 5 protective sleeve, 51 ear seat C, 52 assembly through hole Hole G, 53 assembly cover, 54 protective cover, 6 assembly cushion seat, 61 connecting through hole, 62 assembly groove D, 63 mounting bearing D, 64 ear seat B, 65 assembly through hole F, 66 threaded blind hole, 71 ball screw, 72 transmission seat, 721 assembly axis A, 722 assembly axis B, 723 step shaft, 724 positioning strip, 73 worm wheel, 731 positioning through hole, 732 positioning groove, 74 worm, 741 assembly axis C, 742 assembly axis D, 743 spline groove, 75 drive motor, 751 spline shaft. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0037] See also Figure 1-10 A mounting bracket for an electric power steering gear comprises a main bracket 1 and a sub-bracket 2 which are spliced ​​together. A main sleeve 3 and a sub-sleeve 4 are fixedly connected to the main bracket 1. One end of the main sleeve 3 is fixedly connected to the main bracket 1 and arranged along the axis direction of the steering gear tie rod. The sub-sleeve 4 is vertically distributed with the main sleeve 3. The main sleeve 3 is connected to the inner cavity of the inner sleeve. The sub-bracket 2 is spliced ​​and combined with one end of the main sleeve 3 in a detachable manner.

[0038] A ball screw 71 is mounted on the pull rod of the steering gear. The ball screw 71 is mounted on the axial position of the main sleeve 3 and passes through the main bracket 1 and the auxiliary bracket 2. A transmission seat 72 matching the ball screw 71 is rotatably mounted in the main sleeve 3. A worm gear 73 is mounted on the transmission seat 72. A worm 74 matching the worm gear 73 is rotatably mounted in the auxiliary sleeve 4.

[0039] The protective sleeve 5 is also included. The protective sleeve 5 is spliced ​​and combined with the auxiliary sleeve 4 and maintained in a coaxial arrangement. A worm 74 is installed in the protective sleeve 5 to maintain a driving motor 75 with power connection.

[0040] The main bracket 1 and the auxiliary bracket 2 are fixed on the frame on which the electric power steering device is assembled, and the main bracket 1 and the auxiliary bracket 2 are respectively arranged at the two ends of the main sleeve 3, which can effectively block the two ends of the main sleeve 3, thereby ensuring that the transmission seat 72 and the worm gear 73 assembled therein operate stably and are not disturbed by the external environment.

[0041] The auxiliary bracket 2 and the main sleeve 3 are spliced ​​and fixed in a detachable manner. In the disassembled state, the transmission seat 72 and the worm gear 73 can be easily assembled into the main sleeve 3.

[0042] One end of the auxiliary sleeve 4 is in a sealed state, while the other end is spliced ​​and fixed with the protective sleeve 5, which can ensure that the worm 74 and the drive motor 75 are stably assembled and operated therein without being disturbed by the external environment. The worm 74 and the drive motor 75 can be easily installed in the disassembled state.

[0043] When the electric power steering is in operation, by controlling the forward and reverse rotation states of the drive motor 75, the worm 74 can be driven to rotate synchronously, and the worm 74 drives the worm wheel 73 and the transmission seat 72 matched with the worm wheel 73 to rotate forward or reversely. The transmission seat 72 is equipped with circulating balls, which cooperate with the threaded grooves on the roto-molded screw to drive the ball screw 71 and the pull rod connected to the ball screw 71 to move along their own axis to realize the steering function.

[0044] In order to ensure that the main bracket 1 and the auxiliary bracket 2 can be stably installed on the vehicle frame and to ensure that the main sleeve 3 and the auxiliary bracket 2 are stably combined, the following technical solution is provided.

[0045] The main bracket 1 and the auxiliary bracket 2 are respectively fixed with a wing seat A11 and a wing seat B21, and the wing seat A11 and the wing seat B21 are respectively provided with an assembly through hole A12 and an assembly through hole B22; the end of the main sleeve 3 is fixed with an assembly ring seat 31 which is kept in close contact with the auxiliary bracket 2, and the assembly ring seat 31 is provided with a plurality of groups of assembly through holes C32 distributed in a circular array, and the auxiliary bracket 2 is provided with a plurality of groups of assembly through holes D23 distributed in a circular array, and the assembly through hole C32 is coaxially arranged with the assembly through hole D23 at the corresponding position.

[0046] After the electric power steering gear is assembled into the mounting bracket and the mounting bracket is assembled, the wing seat A11 and the wing seat B21 are fitted to the frame and fixed to the frame by bolts passing through the assembly through hole A12 and the assembly through hole B22, so as to achieve stable installation of the electric power steering gear and the mounting bracket on the frame.

[0047] The assembly ring seat 31 on the main sleeve 3 and the assembly through hole C32 thereon are connected with the auxiliary bracket 2 and the assembly through hole D23 thereon. By passing the matching bolts through the assembly through hole C32 and the assembly through hole D23, a stable combination of the main sleeve 3 and the auxiliary bracket 2 can be achieved.

[0048] In order to ensure that the ball screw 71 can pass through the main bracket 1 and the auxiliary bracket 2, ensure that the transmission seat 72 and the worm wheel 73 can be stably installed in the main sleeve 3, and realize the matching combination of the worm wheel 73 and the transmission seat 72, the following technical solution is provided.

[0049] The main bracket 1 and the auxiliary bracket are respectively provided with a clearance through hole A13 and a clearance through hole B24, which are arranged coaxially. The inner sides of the clearance through hole A13 and the clearance through hole B24 are respectively provided with an assembly groove A14 and an assembly groove B25, and the assembly groove A14 and the assembly groove B25 are respectively equipped with an installation bearing A15 and an installation bearing B26.

[0050] The two ends of the transmission seat 72 are respectively fixed with an assembly shaft A721 and an assembly shaft B722. The assembly shaft A721 and the assembly shaft B722 are respectively assembled in the mounting bearing A15 and the mounting bearing B26. A step shaft 723 is arranged on the inner side of the assembly shaft A721. The outer wall of the step shaft 723 is fixed with multiple groups of positioning strips 724 distributed in a ring array. The positioning strips 724 are arranged along the axial direction of the step shaft 723. A positioning through hole 731 which is sleeved on the outer periphery of the step shaft 723 is opened at the axis center of the worm gear 73. A positioning groove 732 which is nested and plugged with the positioning strip 724 is opened on the inner wall of the positioning through hole 731.

[0051] The ball screw 71 passes through the clearance through hole A13 and the clearance through hole B24 and is arranged in the main sleeve 3. The setting of the assembly groove A14 and the assembly groove B25 can ensure the stable installation of the mounting bearing A15 and the mounting bearing B26, and the assembly shaft A721 and the assembly shaft B722 on the transmission seat 72 are matched with the mounting bearing A15 and the mounting bearing B26 to realize the stable rotation of the transmission seat 72 in the main sleeve 3. The worm gear 73 can be sleeved on the step shaft 723B from one side of the assembly shaft B722, and the combination of the positioning strip 724 and the positioning groove 732 can realize the synchronous rotation of the worm gear 73 and the transmission seat 72.

[0052] After the worm wheel 73 is assembled, it is positioned by the mounting bearing B26 to ensure that the worm wheel 73 is stably installed in the main sleeve 3.

[0053] In order to ensure that the worm 74 can be stably installed and operated in the auxiliary sleeve 4 and to ensure the fixed combination of the protective sleeve 5 and the auxiliary sleeve 4, the following technical solution is provided.

[0054] It also includes an assembly pad 6 arranged between the auxiliary sleeve 4 and the protective sleeve 5, a connecting through hole 61 is opened at the axis center of the assembly pad 6, an assembly groove C41 and an assembly groove D62 are respectively opened at the axis center of the auxiliary sleeve 4 and the assembly pad 6, the assembly groove C41 and the assembly groove D62 are respectively equipped with mounting bearings C42 and mounting bearings D63, an assembly shaft C741 and an assembly shaft D742 are respectively fixedly connected at both ends of the worm 74, the assembly shaft C741 and the assembly shaft D742 are respectively equipped in the mounting bearings C42 and the mounting bearing D63, the assembly shaft D742 passes through the connecting through hole 61 and is arranged in the protective sleeve 5.

[0055] The outer peripheries of the auxiliary sleeve 4, the assembly pad 6 and the protective sleeve 5 are respectively fixed with ear seats A43, ear seats B64 and ear seats C51, and the assembly ear seats A43, ear seats B64 and ear seats C51 are respectively provided with assembly through holes E44, assembly through holes F65 and assembly through holes G52 for maintaining coaxial arrangement.

[0056] A threaded blind hole 66 is formed on a side of the assembly base 6 facing the protective sleeve 5 .

[0057] The setting of the assembly pad 6 can ensure that the worm 74 is stably installed in the secondary sleeve 4. By installing the bearing C42, the bearing D63 and the matching combination of the assembly shaft C741 and the assembly shaft D742 on the worm 74, the worm 74 is stably installed in the secondary sleeve 4.

[0058] The setting of the connecting through hole 61 can ensure that the assembly shaft D742 of the worm 74 penetrates into the protective sleeve 5 to realize the power connection with the drive motor 75. A spline groove 743 is provided at the axis of the assembly shaft D742, and the drive motor 75 is fixed to the threaded blind hole 66 by matching bolts to realize the fixed combination with the assembly cushion 6. A spline shaft 751 is provided on the output shaft of the drive motor 75, and the spline shaft 751 is matched with the spline groove 743 in the assembly shaft D742 to realize the power connection between the drive motor 75 and the worm 74.

[0059] The protective sleeve 5 is sleeved on the outside of the driving motor 75, and the matching bolts penetrate the assembly through hole E44, the assembly through hole F65, and the assembly through hole G52 to achieve the fixed combination of the auxiliary sleeve 4, the assembly pad 6, and the protective sleeve 5.

[0060] In order to ensure that the drive motor 75 can receive the steering signal transmitted by the steering wheel system and control the drive motor 75 to operate according to the set requirements, it is necessary to assemble a controller connected to the signal of the drive motor 75 in the protective sleeve 5, and the following technical solution is provided for this.

[0061] An assembly cover 53 which is in communication with the protection sleeve 5 is fixedly connected to the protection sleeve 5 , and a protection cap 54 is matchedly mounted on the assembly cover 53 .

[0062] The controller is installed in the assembly cover 53 and connected to the drive motor 75 . The protective cover 54 is assembled to the protective sleeve 5 by bolting, and can seal the assembly cover 53 to ensure the sealing effect of the protective sleeve 5 .

[0063] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0064] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An electric power steering mounting bracket, characterized in that: The invention comprises a main bracket (1) and a secondary bracket (2) which are spliced ​​together. The main bracket (1) is fixedly connected with a main sleeve (3) and a secondary sleeve (4). One end of the main sleeve (3) is fixedly connected to the main bracket (1) and arranged along the axis direction of the steering gear tie rod. The secondary sleeve (4) and the main sleeve (3) are vertically distributed. The main sleeve (3) is connected to the inner cavity of the inner sleeve. The secondary bracket (2) and one end of the main sleeve (3) are spliced ​​together in a detachable manner. A ball screw (71) is mounted on the pull rod of the steering gear. The ball screw (71) is mounted on the axis of the main sleeve (3) and passes through the main bracket (1) and the auxiliary bracket (2). A transmission seat (72) matching the ball screw (71) is rotatably mounted in the main sleeve (3). A worm wheel (73) is mounted on the transmission seat (72). A worm (74) matching the worm wheel (73) is rotatably mounted in the auxiliary sleeve (4). It also includes a protective sleeve (5), which is spliced ​​and combined with the auxiliary sleeve (4) and maintained in a coaxial arrangement. A worm (74) is installed in the protective sleeve (5) to maintain a driving motor (75) with power connection.

2. The electric power steering mounting bracket according to claim 1, characterized in that: The main bracket (1) and the auxiliary bracket (2) are respectively fixedly connected with a wing seat A (11) and a wing seat B (21), and the wing seat A (11) and the wing seat B (21) are respectively provided with an assembly through hole A (12) and an assembly through hole B (22); the end of the main sleeve (3) is fixedly connected with an assembly ring seat (31) which is kept in close contact with the auxiliary bracket (2), and the assembly ring seat (31) is provided with a plurality of groups of assembly through holes C (32) distributed in a circular array, and the auxiliary bracket (2) is provided with a plurality of groups of assembly through holes D (23) distributed in a circular array, and the assembly through holes C (32) are coaxially arranged with the assembly through holes D (23) at corresponding positions.

3. The electric power steering mounting bracket according to claim 1, characterized in that: The main support (1) and the auxiliary support are respectively provided with a clearance through hole A (13) and a clearance through hole B (24), the clearance through hole A (13) and the clearance through hole B (24) are coaxially arranged, and the inner sides of the clearance through hole A (13) and the clearance through hole B (24) are respectively provided with an assembly groove A (14) and an assembly groove B (25), and the assembly groove A (14) and the assembly groove B (25) are respectively provided with an installation bearing A (15) and an installation bearing B (26); The two ends of the transmission seat (72) are respectively fixedly connected with an assembly shaft A (721) and an assembly shaft B (722), and the assembly shaft A (721) and the assembly shaft B (722) are respectively assembled in the mounting bearing A (15) and the mounting bearing B (26). A step shaft (723) is arranged on the inner side of the assembly shaft A (721), and the outer wall of the step shaft (723) is fixedly connected with a plurality of positioning strips (724) distributed in a ring array, and the positioning strips (724) are arranged along the axial direction of the step shaft (723). A positioning through hole (731) which is sleeved on the outer periphery of the step shaft (723) is provided at the axis center of the worm wheel (73), and a positioning groove (732) which is nested and plugged with the positioning strip (724) is provided on the inner wall of the positioning through hole (731).

4. The electric power steering mounting bracket according to claim 1, characterized in that: It also includes an assembly seat (6) arranged between the auxiliary sleeve (4) and the protective sleeve (5), wherein a connecting through hole (61) is provided at the axis center of the assembly seat (6), and an assembly recessed groove C (41) and an assembly recessed groove D (62) are respectively provided at the axis centers of the auxiliary sleeve (4) and the assembly seat (6), wherein mounting bearings C (42) and mounting bearings D (63) are respectively installed in the assembly recessed groove C (41) and the assembly recessed groove D (62), and the two ends of the worm (74) are respectively fixedly connected with an assembly shaft C (741) and an assembly shaft D (742), wherein the assembly shaft C (741) and the assembly shaft D (742) are respectively installed in the mounting bearings C (42) and the mounting bearings D (63), and the assembly shaft D (742) passes through the connecting through hole (61) and is arranged in the protective sleeve (5); The outer peripheries of the auxiliary sleeve (4), the assembly pad seat (6) and the protective sleeve (5) are respectively fixedly connected with an ear seat A (43), an ear seat B (64) and an ear seat C (51); the assembly ear seat A (43), the ear seat B (64) and the ear seat C (51) are respectively provided with an assembly through hole E (44), an assembly through hole F (65) and an assembly through hole G (52) for maintaining a coaxial arrangement; A threaded blind hole (66) is formed on one side of the assembly cushion seat (6) facing the protective sleeve (5).

5. The electric power steering mounting bracket according to claim 1, characterized in that: The protective sleeve (5) is fixedly connected to an assembly cover (53) which is in communication with the protective sleeve (5), and the assembly cover (53) is matched with a protective cap (54).

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