An integrated drive device for motor and furnace head spindle
By integrating the brushless motor with the furnace head spindle, the problems of low transmission efficiency and high maintenance costs of cotton candy furnace heads are solved, resulting in a smaller and lower-cost cotton candy production device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU SUNZEE INTELLIGENT TECH CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-03
AI Technical Summary
The existing belt drive of cotton candy burner has problems such as slippage, low transmission efficiency, easy wear of carbon brushes in brushed motors, high maintenance costs, and multi-stage transmission results in large burner size and high assembly precision requirements.
It adopts an integrated design of brushless motor and furnace head main shaft, eliminating the traditional drive wheel, driven wheel and belt drive, and directly connecting the motor shaft of brushless motor to furnace head. Synchronous rotation is ensured by limit structure, combined with non-contact heating structure of brushless motor.
The size of the furnace head has been reduced, the structure has been simplified, maintenance costs and assembly requirements have been reduced, and the stability of rotation and transmission efficiency have been improved.
Smart Images

Figure CN224440295U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cotton candy equipment, specifically, it is an integrated drive device for motor and furnace head main shaft. Background Technology
[0002] Cotton candy is a flavorful snack. In its production, sugar is rapidly melted into syrup in a furnace, and then the melted syrup is flung out by the high-speed rotating furnace to form sugar strands. These sugar strands are then rolled up with bamboo skewers to complete the cotton candy making process.
[0003] However, existing cotton candy burner heads all use brushed motors as the rotation drive, which in turn uses belt drive to make the burner head rotate at high speed. Existing technology has the following drawbacks: belt drive is prone to slippage and has low transmission efficiency; brushed motor carbon brushes are prone to wear and need to be replaced regularly, resulting in high maintenance costs; multi-stage transmission leads to a large burner head size and requires high assembly precision. Utility Model Content
[0004] In order to overcome the defects of the existing technology, this utility model provides an integrated drive device for motor and furnace head spindle, which aims to solve the problems in the existing technology.
[0005] The technical solution adopted by this utility model to solve its technical problem is: an integrated drive device for motor and furnace head main shaft, including a support base, a brushless motor installed on the support base, a motor shaft installed inside the brushless motor, the motor shaft being hollow, a sugar feeding pipe installed inside the motor shaft, and a furnace head installed at the upper end of the motor shaft and the sugar feeding pipe, so that the motor shaft, the sugar feeding pipe and the furnace head rotate synchronously.
[0006] In the aforementioned integrated drive device for motor and furnace head spindle, the brushless motor includes a stator and a rotor, the stator is mounted on a support base, and the motor shaft is connected to the rotor.
[0007] In the aforementioned integrated drive device for motor and furnace head spindle, the upper end of the motor shaft passes through the furnace head, and at least two semi-circular grooves are provided at the connection between the furnace head and the motor shaft. A first arc-shaped groove is provided on the shaft body of the motor shaft, and a second arc-shaped groove is provided on the tube body of the sugar feeding pipe. The semi-circular groove, the first arc-shaped groove, and the second arc-shaped groove surround and form a limiting hole, and a limiting bolt is installed in the limiting hole.
[0008] In the aforementioned integrated drive device for motor and furnace head spindle, a heating coil is provided at the lower end of the furnace head. The heating coil is mounted on a support base via a plate seat. The motor shaft passes through the heating coil and the outer wall of the motor shaft is in a non-contact state with the heating coil.
[0009] In the aforementioned integrated drive device for motor and furnace head spindle, a first bearing and a second bearing distributed vertically are respectively installed on the motor shaft. The outer ring of the first bearing is connected to the stator. The lower end of the motor shaft passes through a brushless motor, and a sugar feeding pipe mounting seat is installed at the lower end of the motor shaft through the outer ring of the second bearing, so that the sugar feeding pipe mounting seat is connected to the furnace head through the sugar feeding pipe.
[0010] The beneficial effects of this utility model are as follows: This utility model integrates the motor shaft of the brushless motor with the furnace head into an integrated design, eliminating the need for traditional drive wheel, driven wheel and belt drive structure. The motor shaft of the brushless motor is directly connected to the furnace head, thereby reducing the size of the furnace head, making the overall structure relatively simpler, reducing maintenance costs and assembly requirements. Attached Figure Description
[0011] Figure 1 This is an exploded structural diagram of the integrated drive device for the motor and furnace head spindle of this utility model.
[0012] Figure 2 This is a three-dimensional structural diagram of the integrated drive device for the motor and the furnace head spindle of this utility model.
[0013] Figure 3 for Figure 2 A magnified structural diagram of point A in the middle.
[0014] In the diagram: 1. Support base; 2. Brushless motor; 3. Motor shaft; 4. Sugar delivery pipe; 5. Plate base; 6. Heating coil plate; 7. Furnace head; 8. First bearing; 9. Second bearing; 10. Sugar delivery pipe mounting base; 11. Semicircular groove; 12. First arc groove; 13. Second arc groove. Detailed Implementation
[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0016] Combination Figures 1 to 3The illustrated integrated drive device for the motor and the furnace head shaft includes a support base 1, on which a brushless motor 2 is mounted. A motor shaft 3 is hollow inside the brushless motor 2, and a sugar feeding pipe 4 is also installed inside the motor shaft 3. A furnace head 7 is mounted on the upper end of the motor shaft 3 and the sugar feeding pipe 4, enabling the motor shaft 3, the sugar feeding pipe 4, and the furnace head 7 to rotate synchronously. A furnace cover is provided on the furnace head 7. In this embodiment, the motor shaft 3 of the brushless motor 2 and the furnace head 7 are integrated into a single design, eliminating the need for a traditional drive wheel, driven wheel, and belt drive structure. The motor shaft 3 of the brushless motor 2 is directly connected to the furnace head 7, thereby reducing the size of the furnace head, simplifying the overall structure, and reducing maintenance costs and assembly requirements.
[0017] It is worth noting that the brushless motor 2 in this embodiment includes a stator and a rotor. The stator is mounted on the support base 1, and the motor shaft 3 is connected to the rotor so that the sugar delivery pipe 4 can be connected after being installed inside the motor shaft 3.
[0018] like Figure 3 As shown, in this embodiment, the upper end of the motor shaft 3 passes through the furnace head 7. Two semi-circular grooves 11 are provided at the connection between the furnace head 7 and the motor shaft 3. A first arc-shaped groove 12 is provided on the shaft body of the motor shaft 3, and a second arc-shaped groove 13 is provided on the tube body of the sugar delivery pipe 4. The semi-circular groove 11, the first arc-shaped groove 12, and the second arc-shaped groove 13 surround and form a limiting hole. A limiting bolt is installed in the limiting hole, so that the motor shaft 3, the sugar delivery pipe 4, and the furnace head 7 are rigidly connected, ensuring that the three are tightly connected under high-speed rotation and preventing slippage.
[0019] In this embodiment, a heating coil 6 is provided at the lower end of the burner head 7. The heating coil 6 is mounted on the support base 1 through the plate seat 5. The motor shaft 3 passes through the heating coil 6, and the outer wall of the motor shaft 3 is in a non-contact state with the heating coil 6. This allows the burner head 7 to be heated through the heating coil 6 to melt the sugar.
[0020] In this embodiment, a first bearing 8 and a second bearing 9, arranged vertically, are respectively installed on the motor shaft 3. The outer ring of the first bearing 8 is connected to the stator. The lower end of the motor shaft 3 passes through the brushless motor 2, and a sugar feeding pipe mounting seat 10 is installed on the lower end of the motor shaft 3 through the outer ring of the second bearing 9, so that the sugar feeding pipe mounting seat 10 is connected to the furnace head 7 through the sugar feeding pipe 4. This allows the motor shaft 3 to be installed more stably in the brushless motor 2, and facilitates the sugar feeding pipe mounting seat 10 to connect to the sugar feeding pipe 4, so as to facilitate the delivery of sugar to the furnace head 7.
[0021] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.
Claims
1. A drive device integrating a motor and a furnace head spindle, comprising a support base (1), characterized in that, A brushless motor (2) is installed on the support base (1). A motor shaft (3) is installed inside the brushless motor (2). The motor shaft (3) is hollow. A sugar delivery pipe (4) is installed inside the motor shaft (3). A furnace head (7) is installed at the upper end of the motor shaft (3) and the sugar delivery pipe (4), so that the motor shaft (3), the sugar delivery pipe (4) and the furnace head (7) rotate synchronously.
2. The integrated drive device for motor and furnace head spindle according to claim 1, characterized in that, The brushless motor (2) includes a stator and a rotor. The stator is mounted on a support base (1), and the motor shaft (3) is connected to the rotor.
3. The integrated drive device for motor and furnace head spindle according to claim 2, characterized in that, The upper end of the motor shaft (3) passes through the furnace head (7). At least two semi-circular grooves (11) are provided at the connection between the furnace head (7) and the motor shaft (3). A first arc groove (12) is provided on the shaft body of the motor shaft (3). A second arc groove (13) is provided on the tube body of the sugar delivery pipe (4). The semi-circular groove (11), the first arc groove (12), and the second arc groove (13) surround and form a limiting hole. A limiting bolt is installed in the limiting hole.
4. The integrated drive device for motor and furnace head spindle according to claim 2, characterized in that, The lower end of the furnace head (7) is provided with a heating coil disc (6), which is mounted on the support base (1) through a disc base (5). The motor shaft (3) passes through the heating coil disc (6), and the outer wall of the motor shaft (3) is in a non-contact state with the heating coil disc (6).
5. The integrated drive device for motor and furnace head spindle according to claim 2, characterized in that, The motor shaft (3) is respectively equipped with a first bearing (8) and a second bearing (9) distributed vertically. The outer ring of the first bearing (8) is connected to the stator. The lower end of the motor shaft (3) passes through the brushless motor (2). The lower end of the motor shaft (3) is equipped with a sugar feeding pipe mounting seat (10) through the outer ring of the second bearing (9), so that the sugar feeding pipe mounting seat (10) is connected to the furnace head (7) through the sugar feeding pipe (4).