Hub motor with sealing ring

Abstract

The utility model relates to the technical field of wheel hub motors, and discloses a wheel hub motor with a sealing ring, which comprises a wheel hub, sealing covers are arranged on two sides of the wheel hub, a motor is fixedly connected in the wheel hub, a sealing assembly comprises an O-shaped sealing ring, the O-shaped sealing ring is positioned in the wheel hub, and the O-shaped sealing ring is arranged in the wheel hub. A first fixing block is fixedly connected to the inner wall of the hub, a plurality of clamping balls are fixedly connected to the inner wall of the first fixing block, a plurality of clamping columns are slidably connected to the interior of the first fixing block, a baffle is arranged on one side of each clamping column, a spring piece is arranged on the inner wall of the first fixing block, and a plurality of first sealing strips and second sealing strips are fixedly connected to the outer wall of an O-shaped sealing ring. According to the sealing structure, the O-shaped sealing ring is limited through the groove in the first fixing block, the interior of the O-shaped sealing ring is clamped through the clamping column and the clamping ball, meanwhile, the contact area of the O-shaped sealing ring is enlarged through the first sealing strip and the second sealing strip, and the sealing performance of the interior of equipment is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to wheel hub motor technical field especially relates to a wheel hub motor with sealing ring. BACKGROUND

[0002] Wheel hub motor as a kind of power, drive and brake device are integrated in the new type motor in wheel hub, it has significant advantage in modern traffic and industrial equipment field.It can realize more efficient power transmission, make the structure design of vehicle or equipment more compact flexible, reduce the large number of components in traditional drive system, reduce energy loss and mechanical complexity, improve overall operating efficiency and space utilization, and also can provide more accurate power distribution in control, adapt to a variety of complex working condition needs.

[0003] Traditional wheel hub motor device is generally composed of motor main body, wheel hub and some basic connection and support structure.Motor generates power to drive rotating shaft, rotating shaft drives wheel hub rotation to realize the movement function of equipment.In its internal structure, some simple fixing parts are generally used to connect motor and wheel hub, such as bolt, nut, etc., to ensure the relative position stability of each component.

[0004] However, there are some problems in existing wheel hub motor.In the process of equipment operation, due to lack of effective limiting and fixing structure, O-shaped sealing ring is prone to position deviation when facing external impact or shaking, so it is difficult to form good sealing in the equipment, which not only causes dust, moisture and other impurities to easily enter the motor, affects the normal operation and service life of motor, but also causes internal lubricating medium leakage due to poor sealing, affects the overall performance and reliability of wheel hub motor, therefore a wheel hub motor with sealing ring is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a wheel hub motor with sealing ring, which aims at improving the problem that O-shaped sealing ring is prone to position deviation due to external impact and shaking in the process of sealing the equipment interior, which leads to difficult to form good sealing.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A wheel hub motor with sealing ring, comprising a wheel hub, the wheel hub is provided with sealing cover on both sides, the wheel hub is fixedly connected with motor in the interior, the wheel hub is provided with sealing assembly and protection assembly in the interior;

[0008] The sealing assembly includes an O-shaped sealing ring located inside the wheel hub, a fixed block one is fixedly connected to the inner wall of the wheel hub, the inner wall of the fixed block one is in close contact with the outer wall of the O-shaped sealing ring, a plurality of clamping balls are fixedly connected to the inner wall of the fixed block one, a plurality of clamping columns are slidably connected to the inside of the fixed block one, the clamping columns and the clamping balls are clamped with the inside of the O-shaped sealing ring, a baffle is arranged on one side of the clamping column, a spring sheet is arranged on the inner wall of the fixed block one, a fixed ring one is fixedly connected to one side of the spring sheet, the outer wall of the fixed ring one is fixedly connected to the inner wall of the fixed block one, the other side of the spring sheet is fixedly connected to the outer wall of the baffle, a plurality of sealing strips one and sealing strips two are fixedly connected to the outer wall of the O-shaped sealing ring, and the sealing strips one and the sealing strips two are vertically distributed.

[0009] As a further description of the above technical scheme:

[0010] The motor output end is fixedly connected with a rotating shaft, and the outer wall of the rotating shaft is rotatably connected to the inner wall of the sealing cover on one side.

[0011] As a further description of the above technical scheme:

[0012] The protection assembly includes a plurality of spring strips, the spring strips are located inside the wheel hub, and the outer wall of the rotating shaft is rotatably connected with a fixed ring two.

[0013] As a further description of the above technical scheme:

[0014] The outer wall of the fixed ring two is fixedly connected with a plurality of fixed blocks two, and the outer wall of each fixed block two is rotatably connected with a connecting plate.

[0015] As a further description of the above technical scheme:

[0016] The outer wall of each connecting plate is rotatably connected with a sliding block, and the inside of the sliding block is slidably connected with a connecting strip.

[0017] As a further description of the above technical scheme:

[0018] The outer wall of the connecting strip is fixedly connected with a plurality of fixed blocks three, and the inner wall of the fixed blocks three is fixedly connected to the inner wall of the motor.

[0019] As a further description of the above technical scheme:

[0020] The outer wall of the connecting strip is provided with a plurality of spring strips, and the both ends of the spring strips are fixedly connected between the sliding blocks on both sides.

[0021] The utility model has the advantages of:

[0022] 1. The utility model discloses a fixed block one inside recess position limiting to O type sealing washer, utilizes the clamping post and the ball to be clamped to the inside of O type sealing washer, realizes the fixed position of O type sealing washer, utilizes sealing strip no. 1 and sealing strip no. 2 enlarge the contact area of O type sealing washer simultaneously, strengthens the sealing effect of O type sealing washer, solved in the process of sealing in the equipment inside, O type sealing washer is easy because of the impact of outside and shakes and leads to the displacement of O type sealing washer position, leads to the problem that the good sealing property is difficult to form, strengthened the sealing property in the equipment inside.

[0023] 2. The utility model discloses a spring strip's elasticity slows down the shaking force of equipment, solved the equipment in the process of driving, the impact, vibration etc. of outside force conduction to equipment inside, goes down for a long time and can cause certain damage to the component in equipment inside's problem, strengthened the protection of equipment. ACCURACY OF DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic view of the hub motor with sealing ring proposed in the utility model;

[0025] Figure 2 It is an internal explosion structure schematic view of the hub of the hub motor with sealing ring proposed in the utility model;

[0026] Figure 3 It is a sealing strip no. 2 structure schematic view of the hub motor with sealing ring proposed in the utility model;

[0027] Figure 4 It is an O type sealing washer structure schematic view of the hub motor with sealing ring proposed in the utility model;

[0028] Figure 5 It is a spring strip structure schematic view of the hub motor with sealing ring proposed in the utility model.

[0029] LEGEND:

[0030] 1, hub;2, sealing cover;3, rotating shaft;4, motor;5, fixed block one;6, baffle;7, spring piece;8, clamping post;9, O type sealing washer;10, sealing strip no. 1;11, ball;12, sealing strip no. 2;13, fixed ring no. 1;14, fixed ring no. 2;15, fixed block two;16, connecting plate;17, sliding block;18, spring strip;19, fixed block three;20, connecting strip. DETAILED DESCRIPTION

[0031] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] With reference to Figures 1-4 The utility model provides an embodiment: a kind of hub motor with sealing ring, including hub 1, both sides of hub 1 are provided with sealing cover 2, motor 4 is fixedly connected in the inside of hub 1, sealing assembly and protection assembly are provided in the inside of hub 1;

[0033] Sealing assembly includes O type sealing ring 9, O type sealing ring 9 is located in the inside of hub 1, its effect is to fill the clearance in the inside of hub 1, prevent liquid or gas leakage, play good sealing effect, fixed block one 5 is fixedly connected in the inner wall of hub 1, and fixed block one 5 is used to fix and support relevant components, its inner wall is attached with the outer wall of O type sealing ring 9, a plurality of clamping balls 11 are fixedly connected in the inner wall of fixed block one 5, clamping ball 11 can be engaged with the inside of O type sealing ring 9, the fixed effect of O type sealing ring 9 is enhanced, to prevent its displacement, a plurality of clamping columns 8 are slidably connected in the inside of fixed block one 5, clamping column 8 is also engaged with the inside of O type sealing ring 9, further stabilize the position of O type sealing ring 9, baffle 6 is provided on the side of clamping column 8, baffle 6 can limit the sliding range of clamping column 8, spring piece 7 is provided in the inner wall of fixed block one 5, spring piece 7 has elasticity, can provide certain elastic force, its one side is fixedly connected with fixed ring one 13, the outer wall of fixed ring one 13 is fixedly connected in the inner wall of fixed block one 5, and fixed ring one 13 plays the role of connecting and fixing spring piece 7, the other side of spring piece 7 is fixedly connected on the outer wall of baffle 6, clamping column 8 is better engaged with O type sealing ring 9 by the elastic force of spring piece 7, a plurality of sealing strips one 10 and sealing strip two 12 are fixedly connected on the outer wall of O type sealing ring 9, sealing strip one 10 and sealing strip two 12 are vertically distributed between sealing strip one 10 and sealing strip two 12, sealing strip one 10 and sealing strip two 12 can enhance sealing performance in different directions, prevent leakage at sealing place, motor 4 output end is fixedly connected with rotating shaft 3, and motor 4 provides power for the rotation of rotating shaft 3, the inner wall of one side sealing cover 2 is rotatably connected on the outer wall of rotating shaft 3, sealing cover 2 can protect and seal the internal components, and rotating shaft 3 realizes the conversion of power transmission and mechanical movement;

[0034] Specifically, during the installation of the device, first, the baffle 6 needs to be moved away from the side of the clamping column 8, and the spring sheet 7 is appropriately extruded. After this operation is completed, then the O-shaped sealing ring 9 is smoothly moved to the groove inside the fixed block 5, and the position is ensured to be correct. When the O-shaped sealing ring 9 is placed in place, the clamping column 8 and the clamping ball 11 will be tightly attached to the internal groove of the O-shaped sealing ring 9. Then, the pulling force applied to the baffle 6 is released, and the baffle 6 is pushed to the side of the clamping column 8 by the rebounding action of the spring sheet 7. During this process, the baffle 6 will be pushed to the vicinity of the clamping column 8, so that the clamping column 8 is tightly clamped into the internal groove of the O-shaped sealing ring 9, and the position of the O-shaped sealing ring 9 is fixed. This fixing process ensures that the O-shaped sealing ring 9 remains stable during subsequent operations and is not easily displaced. Next, the operator smoothly moves the sealing cover 2 to the inside of the hub 1 and begins to extrude the O-shaped sealing ring 9. Through this extrusion, the O-shaped sealing ring 9 effectively seals the connection between the sealing cover 2 and the hub 1, preventing any leakage problems from occurring. At the same time, the sealing strip one 10 and the sealing strip two 12 are used to fill the gap between the sealing cover 2 and the O-shaped sealing ring 9, further enhancing the sealing effect. The sealing between the sealing cover 2 and the hub 1 is ensured, and the reliability and sealing performance of the device are improved.

[0035] With reference to Figure 2 and Figure 5 , the protection assembly includes a plurality of spring strips 18 located inside the hub 1. The spring strips 18 can act as a buffer when the device is subjected to vibration or impact, absorbing and dispersing energy to reduce damage to internal components. The outer wall of the shaft 3 is rotationally connected with a fixed ring two 14, which is used to fix and support related connecting components. The outer wall of the fixed ring two 14 is fixedly connected with a plurality of fixed blocks two 15, which provide a basis for the connection of subsequent components. The outer wall of each fixed block two 15 is rotationally connected with a connecting plate 16, which can transmit force between different components and realize relative rotation, changing the direction and mode of force. The outer wall of each connecting plate 16 is rotationally connected with a sliding block 17, which can slide in the connecting strip 20 to realize flexible displacement changes to adapt to structural adjustments under different working conditions. The sliding block 17 is slidably connected with the connecting strip 20, which plays a role in connecting and supporting the sliding block 17. The outer wall of the connecting strip 20 is fixedly connected with a plurality of fixed blocks three 19, which are used to fix the connecting strip 20 to the inner wall of the motor 4, ensuring the stability of the entire protection assembly structure. The outer wall of the connecting strip 20 is provided with a plurality of spring strips 18, which are fixedly connected between the two sliding blocks 17. When the sliding blocks 17 move relatively, the spring strips 18 can produce corresponding elastic deformation according to the displacement change, further enhancing the buffering and protection performance, effectively protecting the key components inside the device from excessive external force.

[0036] Specifically, during the operation of the device, due to uneven ground, the concave and convex blocks will impact the device, causing the device to shake. At this time, the shaking force is transmitted through the transmission of the rotating shaft 3, causing the fixed block 15 on the outer wall of the fixed ring 14 to move. During the movement of the fixed block 15, the connecting plate 16 is further rotated, causing a chain reaction. As the connecting plate 16 rotates, the sliding block 17 begins to slide along the outer wall of the connecting strip 20. During the sliding process of the sliding block 17, the sliding block 17 will contact and compress the spring strip 18. After being stressed, the spring strip 18 will deform and generate a restoring force in the opposite direction, effectively reducing the impact force on the device. By utilizing the elastic properties of the spring strip 18, the impact force caused by uneven ground on the device can be effectively reduced, avoiding the direct transmission of these impact forces to other internal components of the device, reducing potential damage to the components, and thus improving the service life and stability of the device. Through the coordinated action of the entire damping component, the protective ability of the device against external impact and vibration during operation is enhanced, ensuring that the device can work more stably and reducing the risk of failure.

[0037] Working principle: During installation, the baffle 6 is moved away from the side of the clamping column 8, and the spring sheet 7 is compressed. Then, the O-shaped sealing ring 9 is moved to the internal recess of the fixed block 1, and the clamping column 8 and the clamping ball 11 are fitted with the internal recess of the O-shaped sealing ring 9. Next, the pulling force on the baffle 6 is released, and the baffle 6 is pushed to the side of the clamping column 8 using the rebound force of the spring sheet 7, and the clamping column 8 is tightly clamped inside the O-shaped sealing ring 9, fixing the position of the O-shaped sealing ring 9. Then, the sealing cover 2 is moved inside the hub 1, and the O-shaped sealing ring 9 is compressed. The connection between the sealing cover 2 and the hub 1 is sealed using the O-shaped sealing ring 9, and the gaps between the sealing cover 2 and the O-shaped sealing ring 9 are filled with the sealing strip 1 and the sealing strip 2, enhancing the sealing effect of the connection between the sealing cover 2 and the hub 1. During the operation of the device, due to the impact of the concave and convex blocks on the ground, the shaking force causes the fixed block 15 on the outer wall of the fixed ring 14 to move, and the connecting plate 16 is rotated and the sliding block 17 is pushed to slide along the outer wall of the connecting strip 20. During the sliding process of the sliding block 17, the spring strip 18 is compressed. The elasticity of the spring strip 18 reduces the impact force on the device, avoiding damage to the internal components of the device, and enhancing the protection of the device.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A hub motor with a sealing ring, comprising a hub (1), characterized in that: The hub (1) is provided with sealing caps (2) on both sides, and a motor (4) is fixedly connected inside the hub (1). The hub (1) is provided with sealing components and protective components. The sealing assembly includes an O-ring (9) located inside the hub (1). A fixing block (5) is fixedly connected to the inner wall of the hub (1). The inner wall of the fixing block (5) is in contact with the outer wall of the O-ring (9). Multiple retaining balls (11) are fixedly connected to the inner wall of the fixing block (5). Multiple retaining posts (8) are slidably connected inside the fixing block (5). The retaining posts (8) and retaining balls (11) engage with the inside of the O-ring (9). A baffle (6) is provided on one side, and a spring sheet (7) is provided on the inner wall of the fixing block (5). A fixing ring (13) is fixedly connected to one side of the spring sheet (7). The outer wall of the fixing ring (13) is fixedly connected to the inner wall of the fixing block (5). The other side of the spring sheet (7) is fixedly connected to the outer wall of the baffle (6). Multiple sealing strips (10) and sealing strips (12) are fixedly connected to the outer wall of the O-ring (9). The sealing strips (10) and sealing strips (12) are vertically distributed between each other.

2. A hub motor with a sealing ring according to claim 1, characterized in that: The output end of the motor (4) is fixedly connected to a rotating shaft (3), and the outer wall of the rotating shaft (3) is rotatably connected to the inner wall of the sealing cover (2) on one side.

3. A hub motor with a sealing ring according to claim 2, characterized in that: The protective assembly includes multiple spring bars (18) located inside the hub (1), and a fixing ring (14) is rotatably connected to the outer wall of the shaft (3).

4. A hub motor with a sealing ring according to claim 3, characterized in that: The outer wall of the fixed ring 2 (14) is fixedly connected to a plurality of fixed blocks 2 (15), and each fixed block 2 (15) is rotatably connected to a connecting plate (16) on its outer wall.

5. A hub motor with a sealing ring according to claim 4, characterized in that: Each of the connecting plates (16) has a slider (17) rotatably connected to its outer wall, and a connecting strip (20) is slidably connected inside the slider (17).

6. A hub motor with a sealing ring according to claim 5, characterized in that: The outer wall of the connecting strip (20) is fixedly connected to a plurality of fixing blocks (19), and the inner wall of the fixing blocks (19) is fixedly connected to the inner wall of the motor (4).

7. A hub motor with a sealing ring according to claim 6, characterized in that: The outer wall of the connecting strip (20) is provided with a plurality of spring strips (18), and the two ends of the spring strips (18) are fixedly connected between the sliders (17) on both sides.

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