An electric power steering device convenient for maintenance

Abstract

The utility model provides an electric power steering device that is easy to repair, including: a steering sleeve, a steering rod is slidably installed inside the steering sleeve, and mounting parts are sleeved on both ends of the steering rod, and the number of mounting parts is two. The utility model provides an electric power steering device that is easy to repair. When the steering device needs to be repaired, it needs to be dismantled for easy repair. The knob is turned, and the knob drives the forward and reverse screws to rotate. The forward and reverse screws drive the two movable plates to move. The two movable plates move to both ends, and the pins leave the positioning holes. At this time, the fixation of the steering rod and the mounting part is released. At this time, it is convenient to separate the steering rod from the mounting part, which is convenient for repair after disassembly, greatly improving the practicality. When installing, the steering rod is inserted into the interior of the mounting part, and the knob is turned in the opposite direction. The two movable plates are close to each other, and the pins are inserted into the interior of the steering rod through the positioning holes, so that the steering rod and the mounting part are fixed, which is convenient for installation and disassembly.

Description

Technical Field

[0001] The utility model relates to the field of electric power steering devices, in particular to an electric power steering device which is easy to repair. Background Art

[0002] Electric steering is a power steering system that uses an electric motor to directly provide power assistance. The amount of power assistance is controlled by the electronic control unit (ECU). The torque sensor is connected to the steering shaft. When the steering shaft rotates, the sensor works and transmits the signal to the ECU. The ECU determines the power assistance effect of the motor according to the vehicle speed to ensure that the car is easy to drive at low speeds and stable and reliable at high speeds. The steering performance of a car is one of its main performance characteristics. The performance of the steering system directly affects the handling stability of the car. It plays an important role in ensuring the safe driving of the vehicle, reducing traffic accidents, protecting the personal safety of the driver, and improving the driver's working conditions.

[0003] However, the electric power steering gear in the existing market is not easy to repair during use. When the steering gear has a serious fault, it needs to be dismantled for repair, and the inconvenience of disassembly and installation affects the efficiency of repair.

[0004] Therefore, it is necessary to provide an electric power steering device that is easy to repair to solve the above-mentioned technical problems. Summary of the invention

[0005] The utility model provides an electric power steering gear which is easy to repair, which solves the problem that the electric power steering gear in the existing market is not easy to repair during use, and when a relatively serious fault occurs in the steering gear, it needs to be dismantled for repair, but the disassembly and installation are inconvenient, which affects the efficiency of the repair.

[0006] The utility model provides an electric power steering device which is easy to repair, comprising: a steering sleeve, a steering rod is slidably installed inside the steering sleeve, mounting pieces are sleeved at both ends of the steering rod, and the number of mounting pieces is two, first mounting grooves adapted to the steering rod are opened inside the two mounting pieces, and the inner wall of the first mounting groove is equidistantly annularly opened with clamping grooves, and the number of the clamping grooves is multiple, and clamping blocks are slidably installed inside the multiple clamping grooves, and the multiple clamping blocks are fixedly installed with the steering rod, and the mounting pieces are fixedly installed on both sides of the outside of the mounting piece, and the number of the fixing plates is two, and a forward and reverse screw rod is rotatably installed between the two fixing plates through a bearing, and a knob is fixedly installed on the outside of the forward and reverse screw rods and located between the two fixing plates, and the number of the knobs is two, and the outside of the forward and reverse screw rods is meshedly connected with a movable plate, and the number of the movable plates is two, and a pin is fixedly installed on one side of the outside of the two movable plates, and a fixed block is welded and connected on both sides of the outside of the mounting piece and located below the fixed plate, and one end of the pin passes through the fixed block and the mounting piece and extends to the inside of the mounting piece.

[0007] Preferably, positioning holes are provided on the outside of both ends of the steering rod, and one end of the inserting pin is inserted into the interior of the steering rod through the positioning hole.

[0008] Preferably, a steering gear body is fixedly mounted on an outer side of the steering sleeve, and an electric power-assisting mechanism is fixedly mounted on an outer side of the steering gear body.

[0009] Preferably, an oil filling cylinder is fixedly mounted on the top of the steering gear body, and a top cover is fixedly mounted on the top of the oil filling cylinder.

[0010] Preferably, a fixing ring is fixedly mounted on the inner wall of the oil filling cylinder, and a spring is placed on the top of the fixing ring.

[0011] Preferably, a steel ball is placed on the top of the spring, and the steel ball is matched with the top cover.

[0012] Compared with the related art, the electric power steering device provided by the utility model which is easy to repair has the following beneficial effects:

[0013] When the steering gear needs to be inspected, it needs to be removed for the convenience of inspection, and the knob is turned. The knob drives the forward and reverse screws to rotate, and the forward and reverse screws drive the two movable plates to move. The two movable plates move to both ends, and the pins leave the positioning holes. At this time, the fixation between the steering rod and the mounting part is released. At this time, it is convenient to separate the steering rod from the mounting part, which is convenient for inspection after disassembly, greatly improving the practicality. During installation, the steering rod is inserted into the interior of the mounting part, and the knob is turned in the opposite direction. The two movable plates are close to each other, and the pins are inserted into the interior of the steering rod through the positioning holes, so that the steering rod and the mounting part are fixed, which has the function of convenient installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic structural diagram of a preferred embodiment of an electric power steering device that is easy to repair provided by the utility model;

[0015] Figure 2 for Figure 1 The schematic diagram of the pin installation structure is shown;

[0016] Figure 3 for Figure 1 Schematic diagram of the steel ball installation structure shown.

[0017] In the figure: 1. steering sleeve; 2. steering rod; 3. mounting piece; 4. first mounting groove; 5. clamping groove; 6. clamping block; 7. fixing block; 8. fixing plate; 9. forward and reverse screws; 10. knob; 11. moving plate; 12. pin; 13. positioning hole; 14. steering gear body; 15. electric power assist mechanism; 16. oil filling cylinder; 17. fixing ring; 18. spring; 19. steel ball; 20. top cover. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0019] Embodiment: An electric power steering device that is easy to repair, such as Figure 1-Figure 3As shown, it includes: a steering sleeve 1, a steering rod 2 is slidably installed inside the steering sleeve 1, both ends of the steering rod 2 are sleeved with mounting members 3, and the number of mounting members 3 is two, the insides of the two mounting members 3 are provided with first mounting grooves 4 adapted to the steering rod 2, the inner wall of the first mounting groove 4 is provided with equidistant annular card grooves 5, and the number of card grooves 5 is multiple, the insides of the multiple card grooves 5 are slidably installed with card blocks 6, the multiple card blocks 6 are fixedly installed with the steering rod 2, the outer sides of the mounting member 3 are fixedly installed with fixed plates 8, and the number of fixed plates 8 is two, a forward and reverse screw rod 9 is rotatably installed between the two fixed plates 8 through a bearing, a knob 10 is fixedly installed on the outside of the forward and reverse screw rod 9 and located between the two fixed plates 8, and the number of knobs 10 is two, the outer side of the forward and reverse screw rod 9 is meshedly connected with a movable plate 11, and the number of movable plates 11 is two, and a pin 12 is fixedly installed on one side of the outer side of the two movable plates 11, the outer sides of the mounting member 3 and the fixed plates 8 The fixing block 7 is welded to the bottom, one end of the pin 12 passes through the fixing block 7 and the mounting member 3 and extends to the inside of the mounting member 3. Positioning holes 13 are provided on the outside of both ends of the steering rod 2. One end of the pin 12 is inserted into the inside of the steering rod 2 through the positioning hole 13. When the steering gear needs to be repaired, it needs to be removed for the convenience of maintenance. The knob 10 is turned, and the knob 10 drives the forward and reverse screws 9 to rotate. The forward and reverse screws 9 rotate and drive the two movable plates 11 to move. The two movable plates 11 move to both ends, and the pin 12 leaves from the positioning hole 13. At this time, the fixation of the steering rod 2 and the mounting member 3 is released. At this time, it is convenient to separate the steering rod 2 from the mounting member 3, which is convenient for maintenance after disassembly, greatly improving the practicality. During installation, the steering rod 2 is inserted into the inside of the mounting member 3, and the knob 10 is turned in the opposite direction. The two movable plates 11 are close to each other, and the pin 12 is inserted into the inside of the steering rod 2 through the positioning hole 13, so that the steering rod 2 and the mounting member 3 are fixed, which has the function of convenient installation and disassembly.

[0020] A steering gear body 14 is fixedly mounted on the outer side of the steering sleeve 1. An electric power-assist mechanism 15 is fixedly mounted on the outer side of the steering gear body 14. One end of the steering gear body 14 is connected to the output mechanism of the steering wheel. The electric power-assist mechanism 15 is used for power steering.

[0021] An oil filling cylinder 16 is fixedly installed on the top of the steering gear body 14, and a top cover 20 is fixedly installed on the top of the oil filling cylinder 16. A fixing ring 17 is fixedly installed on the inner wall of the oil filling cylinder 16, and a spring 18 is placed on the top of the fixing ring 17. A steel ball 19 is placed on the top of the spring 18. The steel ball 19 is adapted to the top cover 20. When lubricating oil needs to be added, the steel ball 19 is squeezed downward. At this time, the spring 18 is compressed, and the hole on the top of the top cover 20 is exposed. The lubricating oil is squeezed into the oil filling cylinder 16, and the lubricating oil enters the interior of the steering gear body 14 through the oil filling cylinder 16, effectively completing the addition of the lubricating oil. After the addition is completed, the oil pot is slowly removed. Due to the resetting effect of the spring 18, the steel ball 19 is pushed upward to seal the top cover 20 to prevent water or dust from entering the interior.

[0022] The working principle of an electric power steering device that is easy to repair provided by the utility model is as follows:

[0023] The first step: when the steering gear needs to be repaired, it needs to be removed for the convenience of maintenance, and the knob 10 is turned. The knob 10 drives the forward and reverse screws 9 to rotate, and the rotation of the forward and reverse screws 9 drives the two movable plates 11 to move. The two movable plates 11 move to both ends, and the pins 12 leave the positioning holes 13. At this time, the fixation between the steering rod 2 and the mounting member 3 is released. At this time, it is convenient to separate the steering rod 2 from the mounting member 3, which is convenient for maintenance after disassembly, greatly improving the practicality. During installation, the steering rod 2 is inserted into the interior of the mounting member 3, and the knob 10 is turned in the opposite direction. The two movable plates 11 are close to each other, and the pins 12 are inserted into the interior of the steering rod 2 through the positioning holes 13, so that the steering rod 2 and the mounting member 3 are fixed, which has the function of convenient installation and disassembly.

[0024] Step 2: One end of the steering gear body 14 is connected to the output mechanism of the steering wheel, and the electric power-assisting mechanism 15 works for power-assisted steering. When lubricating oil needs to be added, the steel ball 19 is squeezed downward. At this time, the spring 18 is compressed, and the hole on the top of the top cover 20 is exposed. The lubricating oil is squeezed into the oil filling cylinder 16. The lubricating oil enters the interior of the steering gear body 14 through the oil filling cylinder 16, and the addition of the lubricating oil is effectively completed. After the addition is completed, the oil pot is slowly removed. Due to the reset effect of the spring 18, the steel ball 19 is pushed upward to seal the top cover 20 to prevent water or dust from entering the interior.

[0025] Finally, it should be pointed out that the above embodiments are only representative examples of the present utility model. Obviously, the present utility model is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model should be considered to belong to the protection scope of the present utility model.

Claims

1. An electric power steering device that is easy to repair, comprising: A steering sleeve (1), characterized in that: a steering rod (2) is slidably mounted inside the steering sleeve (1), mounting members (3) are sleeved on both ends of the steering rod (2), and the number of mounting members (3) is two, and the insides of the two mounting members (3) are each provided with a first mounting groove (4) adapted to the steering rod (2), the inner wall of the first mounting groove (4) is provided with a clamping groove (5) equidistantly annularly, and the number of the clamping grooves (5) is multiple, and the insides of the multiple clamping grooves (5) are each slidably mounted with a clamping block (6), and the multiple clamping blocks (6) are fixedly mounted to the steering rod (2), and the outer sides of the mounting member (3) are each fixedly mounted with a fixing plate (8), and the number of the fixing plates (8) is equal to or greater than 100. There are two of them, a forward and reverse screw rod (9) is rotatably mounted between the two fixed plates (8) via a bearing, a knob (10) is fixedly mounted outside the forward and reverse screw rod (9) and located between the two fixed plates (8), and the number of the knobs (10) is two, a movable plate (11) is meshedly connected outside the forward and reverse screw rod (9), and the number of the movable plates (11) is two, a pin (12) is fixedly mounted on one side of the outside of the two movable plates (11), and a fixed block (7) is welded and connected on both sides of the outside of the mounting member (3) and located below the fixed plate (8), and one end of the pin (12) passes through the fixed block (7) and the mounting member (3) and extends to the inside of the mounting member (3).

2. The electric power steering device that is easy to maintain according to claim 1 is characterized in that: Positioning holes (13) are provided on the outside of both ends of the steering rod (2), and one end of the inserting pin (12) is inserted into the inside of the steering rod (2) through the positioning hole (13).

3. The electric power steering device that is easy to maintain according to claim 2 is characterized in that: A steering gear body (14) is fixedly mounted on one side of the exterior of the steering sleeve (1), and an electric power assist mechanism (15) is fixedly mounted on one side of the exterior of the steering gear body (14).

4. The electric power steering device that is easy to maintain according to claim 3 is characterized in that: An oil filling cylinder (16) is fixedly mounted on the top of the steering gear body (14), and a top cover (20) is fixedly mounted on the top of the oil filling cylinder (16).

5. The electric power steering device that is easy to repair according to claim 4 is characterized in that: A fixing ring (17) is fixedly mounted on the inner wall of the oil filling cylinder (16), and a spring (18) is placed on the top of the fixing ring (17).

6. The electric power steering device that is easy to maintain according to claim 5, characterized in that: A steel ball (19) is placed on the top of the spring (18), and the steel ball (19) is matched with the top cover (20).

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