Anti-falling installation structure of wheel core electric drive system

Abstract

The utility model discloses a kind of anti-falling installation structures of wheel core electric drive system, including multipurpose box and flat fork, coaxial first support shaft and second support shaft of fixed installation are provided on multipurpose box, the outer end of the two flat fork arms of flat fork is respectively fixedly connected with first support shaft and second support shaft, through the cooperation of flat fork positioning groove and corresponding flat fork arm, the positioning reliability between flat fork and multipurpose box can be improved, then by increasing several reinforcing connecting plates fixedly connected with it on flat fork arm, and increasing bolt connecting seat corresponding with bolt mounting hole on reinforcing connecting plate on multipurpose box, so as to lock flat fork and multipurpose box completely by threaded fastener, and then the risk of falling between wheel core electric drive system and flat fork can be avoided, security risk is eliminated, and when tire needs to be replaced, only need to remove each threaded fastener, operation process is simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of electric drive system technology, and specifically to an anti-detachment installation structure for a wheel core electric drive system. Background Technology

[0002] Please refer to Chinese Utility Model Patent Application No. 2024228830534. The applicant of this application has designed a low-speed, high-torque, high-efficiency, energy-saving, compact wheel core electric drive system, in which the two flat fork arms are locked to the first support shaft and the second support shaft by corresponding two locking nuts.

[0003] During long-term testing, the applicant discovered that, for the existing wheel hub electric drive system and the swingarm connection method, in order to facilitate tire replacement, the connection between the two swingarm arms and the first and second support shafts cannot be non-removable. Therefore, no matter how the connection structure is improved at the two locking nuts, there is always a risk of detachment, which poses a serious safety hazard during riding.

[0004] Solving these problems is now a top priority. Utility Model Content

[0005] In view of this, the present invention provides an anti-detachment mounting structure for a wheel core electric drive system.

[0006] The technical solution is as follows:

[0007] The first aspect of this application relates to an anti-detachment mounting structure for a wheel-driven electric system, comprising a multi-purpose housing and a fork. A motor assembly and a reduction gear mechanism are installed in the multi-purpose housing. A first support shaft and a second support shaft are coaxially mounted on the multi-purpose housing. The outer ends of the two fork arms of the fork are respectively fixedly connected to the first and second support shafts. A wheel hub is rotatably mounted on the second support shaft. The motor assembly can drive the wheel hub to rotate relative to the second support shaft via the reduction gear mechanism. A surface conforming to the shape of the fork is formed on the outer wall of the multi-purpose housing. The fork has a flat fork positioning groove that matches one of its flat fork arms and at least one set of bolt connecting seats that are correspondingly arranged on both sides of the flat fork positioning groove. One of the flat fork arms is embedded in the flat fork positioning groove and at least one reinforcing connecting plate is fixedly installed along its length. Each reinforcing connecting plate has two bolt mounting holes located on both sides of the flat fork positioning groove. The multi-purpose housing is integrally formed with bolt connecting seats that correspond one-to-one with each bolt mounting hole. Each reinforcing connecting plate is locked to the corresponding bolt connecting seat by threaded fasteners that pass through each bolt mounting hole.

[0008] The above-mentioned anti-detachment mounting structure of the wheel core electric drive system improves the positioning reliability between the horizontal fork and the multi-purpose housing by cooperating with the horizontal fork positioning groove and the corresponding horizontal fork arm. Then, by adding several reinforcing connecting plates to the horizontal fork arm and adding bolt connecting seats to the multi-purpose housing corresponding to the bolt mounting holes on the reinforcing connecting plates, the horizontal fork and the multi-purpose housing are completely locked and fixed by threaded fasteners. This avoids the risk of the wheel core electric drive system and the horizontal fork falling off, eliminating safety hazards. Furthermore, when it is necessary to change the tire, it is only necessary to remove the threaded fasteners, making the operation simple and convenient.

[0009] In some embodiments, the multipurpose housing has an integrally formed controller housing extending along the length of the fork arm, and the fork positioning groove is formed on the outer wall of the controller housing.

[0010] In some embodiments, two sets of controller housing heat dissipation ribs extending along the length direction of the flat fork arm are integrally formed on the outer wall of the controller housing, and the gap between the two sets of controller housing heat dissipation ribs forms the flat fork positioning groove.

[0011] In some embodiments, the side of the controller housing away from the horizontal fork positioning groove is fixedly connected to a horizontal fork arm away from the controller housing by a reinforcing bracket.

[0012] In some embodiments, the reinforcing bracket includes a connecting pipe mounting plate fixedly mounted on a flat fork arm away from the controller housing, and two connecting pipes fixedly mounted on the connecting pipe mounting plate. The ends of the two connecting pipes away from the connecting pipe mounting plate are respectively fixedly connected to corresponding connecting pipe mounting seats integrally formed on the controller housing. Both connecting pipes are parallel to the flat fork tube of the flat fork and form an isosceles triangle arrangement with the flat fork tube.

[0013] In some embodiments, the connecting pipe mounting base, connecting pipe, and connecting pipe mounting plate are locked together as one unit by long bolts passing through the connecting pipe. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the wheel-core electric drive system from one perspective.

[0015] Figure 2 This is a structural schematic diagram of the wheel-core electric drive system from another perspective.

[0016] Figure 3 This is a cross-sectional view of the wheel-core electric drive system;

[0017] Figure 4 This is a structural diagram of a multi-purpose enclosure. Detailed Implementation

[0018] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0019] like Figures 1-4 As shown, an anti-detachment mounting structure for a wheel core electric drive system mainly includes a multi-purpose housing 1 and a flat fork 4.

[0020] The multi-purpose housing 1 houses a motor assembly and a reduction transmission mechanism. A first support shaft 2 and a second support shaft 3 are fixedly mounted on the multi-purpose housing 1. The first support shaft 2 and the second support shaft 3, which are coaxially arranged, extend to the left and right sides of the multi-purpose housing 1, respectively. The outer ends of the two flat fork arms 4a of the flat fork 4 are fixedly connected to the first support shaft 2 and the second support shaft 3, respectively. A wheel hub 5 is rotatably mounted on the second support shaft 3. The motor assembly can drive the wheel hub 5 to rotate relative to the second support shaft 3 through the reduction transmission mechanism, thus realizing the wheel core drive arrangement.

[0021] In this embodiment, the outer wall of the multi-purpose housing 1 is formed with a flat fork positioning groove 1d6 and at least one set of bolt connecting seats 1d4 that are correspondingly arranged on both sides of the flat fork positioning groove 1d6. The flat fork positioning groove 1d6 is adapted to one of the flat fork arms 4a of the flat fork 4. The flat fork arm 4a is embedded in the flat fork positioning groove 1d6, which can improve the positioning reliability between the flat fork 4 and the multi-purpose housing 1.

[0022] Furthermore, at least one reinforcing connecting plate 4b is fixedly installed on the flat fork arm 4a embedded in the flat fork positioning groove 1d6, which is arranged along its length direction. Each reinforcing connecting plate 4b has a bolt mounting hole 4b1 on each side along the width direction of the flat fork arm 4a. That is, the two bolt mounting holes 4b1 on each reinforcing connecting plate 4b are located on both sides of the flat fork positioning groove 1d6.

[0023] Correspondingly, the multi-purpose housing 1 is integrally formed with bolt connection seats 1d4 that correspond one-to-one with each bolt mounting hole 4b1. Each reinforcing connecting plate 4b is locked to the corresponding bolt connection seat 1d4 by threaded fasteners that pass through each bolt mounting hole 4b1. Therefore, the threaded fasteners completely lock and fix the flat fork 4 to the multi-purpose housing 1, thereby avoiding the risk of the wheel core electric drive system falling off the flat fork and eliminating safety hazards. Furthermore, when it is necessary to change the tire, it is only necessary to remove each threaded fastener, and the operation process is simple and convenient.

[0024] Furthermore, a controller housing 1d extending along the length of the fork arm 4a is integrally formed on the multi-purpose housing 1. Therefore, the controller housing 1d effectively utilizes the space outside the circumferential sidewalls of the multi-purpose housing 1, allowing the controller to be installed inside the housing 1d and integrated into the wheel hub electric drive system. This eliminates the need for dedicated controller mounting space on the frame, improving frame design flexibility. Moreover, the communication lines between the controller and the wheel hub electric drive system are concealed within the multi-purpose housing 1, significantly reducing the risk of wiring aging. It also eliminates the need for specialized waterproofing and dustproofing treatment of the wiring, improving the stability, reliability, and safety of the wheel hub electric drive system. Additionally, the fork positioning groove 1d6 is formed on the outer wall of the controller housing 1d, increasing its length and thus enhancing the reliability of the positioning of the fork arm 4a with the multi-purpose housing 1.

[0025] Furthermore, two sets of controller housing heat dissipation ribs 1d3 extending along the length of the flat fork arm 4a are integrally formed on the outer wall of the controller housing 1d. The gap between the two sets of controller housing heat dissipation ribs 1d3 forms the flat fork positioning groove 1d6. Specifically, each set of controller housing heat dissipation ribs 1d3 is composed of multiple parallel thin ribs with gaps between adjacent thin ribs. Each thin rib extends along the length of the flat fork arm 4a, thereby improving the ability of airflow to carry away heat from the controller housing heat dissipation ribs 1d3 during the two-wheeled vehicle's operation, thus improving the heat dissipation performance of the controller.

[0026] Please see Figures 1-3 The side of the controller housing 1d away from the horizontal fork positioning groove 1d6 is fixedly connected to a horizontal fork arm 4a away from the controller housing 1d by a reinforcing bracket 6. This not only avoids the risk of the wheel core electric drive system falling off the horizontal fork and eliminates safety hazards, but also improves the stability and reliability of the controller housing 1d installation.

[0027] Furthermore, the reinforcing bracket 6 includes a connecting pipe mounting plate 6a fixedly installed on a horizontal fork arm 4a away from the controller housing 1d, and two connecting pipes 6b fixedly installed on the connecting pipe mounting plate 6a. The ends of the two connecting pipes 6b away from the connecting pipe mounting plate 6a are respectively fixedly connected to corresponding connecting pipe mounting seats 1d5 integrally formed on the controller housing 1d. Both connecting pipes 6b are parallel to the horizontal fork tube 4b of the horizontal fork 4 and form an isosceles triangle arrangement with the horizontal fork tube 4b. This not only improves the stability and reliability of the controller housing 1d installation, but also significantly improves the structural strength of the horizontal fork 4.

[0028] Please see Figure 3The connecting pipe mounting base 1d5, connecting pipe 6b, and connecting pipe mounting plate 6a are locked together as one unit by a long bolt 6c passing through the connecting pipe 6b, further improving the stability and reliability of the controller housing 1d installation and the structural strength of the flat fork 4. Specifically, the threaded part of the long bolt 6c passes through the connecting pipe mounting plate 6a and the connecting pipe 6b in sequence and is then screwed into the connecting pipe mounting base 1d5. At the same time, the head of the long bolt 6c abuts against the connecting pipe mounting plate 6a, thereby locking the connecting pipe mounting base 1d5, connecting pipe 6b, and connecting pipe mounting plate 6a together as one unit. This method is simple, reliable, and easy to assemble.

[0029] Furthermore, the multi-purpose housing 1 also has several motor housing heat dissipation fins 1b3 on the outer surface where the motor assembly is installed, thereby improving the heat dissipation performance of the core components of the motor and ensuring the stable operation of the controller. In this embodiment, each motor housing heat dissipation fin 1b3 extends along the length direction of the flat fork arm 4a, thereby improving the ability of airflow to carry away the heat on each motor housing heat dissipation fin 1b3 during the two-wheeled vehicle's operation, and improving the heat dissipation performance of the controller.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A non-detachment mounting structure for a wheel-core electric drive system, comprising a multi-purpose housing and a fork, wherein a motor assembly and a reduction transmission mechanism are installed in the multi-purpose housing, a first support shaft and a second support shaft are fixedly mounted coaxially on the multi-purpose housing, the outer ends of the two fork arms of the fork are respectively fixedly connected to the first support shaft and the second support shaft, a wheel hub is rotatably mounted on the second support shaft, and the motor assembly can drive the wheel hub to rotate relative to the second support shaft through the reduction transmission mechanism, characterized in that: The outer wall of the multi-purpose housing is formed with a flat fork positioning groove adapted to one of the flat fork arms and at least one set of bolt connecting seats corresponding to each other on both sides of the flat fork positioning groove. One of the flat fork arms is embedded in the flat fork positioning groove and at least one reinforcing connecting plate is fixedly installed along its length. Each reinforcing connecting plate has two bolt mounting holes located on both sides of the flat fork positioning groove. The multi-purpose housing is integrally formed with bolt connecting seats corresponding to each bolt mounting hole. Each reinforcing connecting plate is locked to the corresponding bolt connecting seat by threaded fasteners passing through each bolt mounting hole.

2. The anti-detachment mounting structure of the wheel core electric drive system according to claim 1, characterized in that: The multi-purpose housing has an integrally formed controller housing extending along the length of the flat fork arm, and the flat fork positioning groove is formed on the outer wall of the controller housing.

3. The anti-detachment mounting structure of the wheel core electric drive system according to claim 2, characterized in that: Two sets of controller housing heat dissipation ribs extending along the length of the flat fork arm are integrally formed on the outer wall of the controller housing, and the gap between the two sets of controller housing heat dissipation ribs forms the flat fork positioning groove.

4. The anti-detachment mounting structure of the wheel core electric drive system according to claim 2, characterized in that: The side of the controller housing away from the horizontal fork positioning groove is fixedly connected to a horizontal fork arm away from the controller housing via a reinforcing bracket.

5. The anti-detachment mounting structure of the wheel core electric drive system according to claim 4, characterized in that: The reinforcing bracket includes a connecting pipe mounting plate fixedly installed on a flat fork arm away from the controller housing, and two connecting pipes fixedly installed on the connecting pipe mounting plate. The ends of the two connecting pipes away from the connecting pipe mounting plate are respectively fixedly connected to corresponding connecting pipe mounting seats integrally formed on the controller housing. Both connecting pipes are parallel to the flat fork tube of the flat fork and form an isosceles triangle arrangement with the flat fork tube.

6. The anti-detachment mounting structure of the wheel core electric drive system according to claim 5, characterized in that: The connecting pipe mounting base, connecting pipe, and connecting pipe mounting plate are locked together as one unit by long bolts passing through the connecting pipe.

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