Replaceable nozzle low-speed waterproof motorized spindle with high-pressure water outlet of shaft core under high-temperature cleaning environment

Abstract

The application discloses a replaceable nozzle low-speed waterproof motorized spindle with high-pressure water outlet of shaft core in a high-temperature cleaning environment and relates to the technical field of cleaning equipment.The application solves the problems of the lack of water outlet of the shaft core center, the inconvenience of nozzle replacement and the complex overall structure of the high-temperature and high-pressure cleaning equipment.The lower end of the rotating driving structure is connected with the water supply structure; the upper end of the core shaft penetrates through the water supply structure and is connected with the output end of the rotating driving structure; the lower end of the core shaft is provided with a quick-change nozzle structure; the lower half of the core shaft is hollow; the water supply structure is communicated with the hollow part of the core shaft; the nozzle female head of the quick-change nozzle structure is sleeved on the core shaft; the upper end of the nozzle connector is inserted into the nozzle female head; the nozzle female head and the nozzle connector are movably connected; and the nozzle connector is communicated with the hollow part of the core shaft.The application realizes the high-pressure water outlet of the shaft core by arranging the water supply structure on the core shaft; and the double design of the compression spring compression and the edge anti-rotation realizes the effects of quick disassembly and assembly of the nozzle, firm connection, no slip and no loosening.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, specifically to a low-speed waterproof electric spindle with replaceable nozzles for high-pressure water output from the spindle core under high-temperature cleaning conditions. Background Technology

[0002] In industrial applications of high-temperature and high-pressure cleaning equipment, the electric spindle, as a core transmission, water outlet, and execution component, directly determines the equipment's operating costs, maintenance efficiency, and operational stability through its structural design. However, existing electric spindle products with similar functions generally suffer from the following drawbacks: 1. Not optimized for high-temperature cleaning environments, conventional seals and structural components are prone to aging, deformation, and failure at high temperatures, making them unable to work stably for a long time; 2. The water outlet method is mostly end or side water outlet, lacking a high-pressure water outlet structure at the center of the shaft, resulting in insufficient cleaning penetration and coverage uniformity; 3. The nozzle replacement mechanism is complex, cumbersome to disassemble and assemble, the connection is prone to loosening, and relative rotation is likely to occur, affecting the cleaning effect and equipment stability; 4. The overall structure is complex, the manufacturing cost is high, the maintenance is difficult, and the procurement cycle of parts is long, making it difficult to meet the actual needs of industrial production for high temperature resistance, low cost, easy maintenance, and fast delivery. Summary of the Invention

[0003] To address the aforementioned problems of existing high-temperature and high-pressure cleaning equipment, such as the lack of water outlet at the spindle center, inconvenient nozzle replacement, and complex overall structure, this invention proposes a low-speed, waterproof electric spindle with replaceable nozzles and high-pressure water outlet at the spindle center for high-temperature cleaning environments. This invention achieves high-pressure water outlet at the spindle center by incorporating a water supply structure on the spindle; simultaneously, relying on a dual design of spring clamping and edge anti-rotation, it achieves quick nozzle assembly and disassembly, a secure connection, and prevents slippage and loosening.

[0004] This invention proposes a low-speed waterproof electric spindle with replaceable nozzles and high-pressure water output from the spindle core under high-temperature cleaning conditions. Specifically, it includes a rotary drive structure, a spindle, a water supply structure, and a quick-change nozzle structure. The lower end of the rotary drive structure is connected to the water supply structure; the upper end of the spindle passes through the water supply structure and connects to the output end of the rotary drive structure; the lower end of the spindle is equipped with the quick-change nozzle structure; the lower half of the spindle is hollow, and a through hole is radially provided in the middle of the spindle, through which the water supply structure communicates with the hollow part of the spindle; the quick-change nozzle structure includes a nozzle female head and a nozzle connector. The nozzle female head is sleeved on the spindle, and the upper end of the nozzle connector is inserted into the nozzle female head and movably connected to it. The nozzle connector communicates with the hollow part of the spindle.

[0005] Furthermore, the water supply structure includes an upper cover, an inner shell, a lower cover, and a lower flange. The upper cover, inner shell, lower cover, and lower flange are rotatably mounted on the spindle from top to bottom, and the upper cover, inner shell, and lower cover are connected from top to bottom. A water inlet is provided on one side of the inner shell, and a water inlet cavity is provided inside. The water inlet, water inlet cavity, through hole, and spindle are connected in sequence.

[0006] Furthermore, a sealing structure is provided between the inner shell and the spindle at positions corresponding to the upper and lower parts of the water inlet cavity.

[0007] Furthermore, the sealing structure is a sealing ring.

[0008] Furthermore, the quick-change nozzle structure also includes a transition flange, which is sleeved on the mandrel and connected to the nozzle head at its lower end; two fixing nuts are provided on the mandrel to axially position the transition flange.

[0009] Furthermore, the inner side of the nozzle head is provided with several locking blocks, and the outer side of the upper end of the nozzle connector is provided with several fixing blocks. Both the locking blocks and the fixing blocks are provided with inclined conical surfaces, and the conical surfaces of the locking blocks and the fixing blocks fit tightly together.

[0010] Furthermore, the locking block has limiting edges on both sides, and the fixing block is inserted between the two limiting edges.

[0011] Furthermore, the quick-change nozzle structure also includes a compression spring and a compression spring base, which are sleeved on the spindle; the upper end of the compression spring contacts the transition flange, and the lower end contacts the compression spring base; the lower surface of the compression spring base contacts the upper end of the nozzle connector.

[0012] Furthermore, a sealing ring is provided between the nozzle connector and the mandrel.

[0013] Furthermore, the rotary drive structure includes a servo motor and a reducer, with the output end of the servo motor connected to the input end of the reducer, and the output end of the reducer connected to the spindle.

[0014] The beneficial effects of the replaceable nozzle low-speed waterproof electric spindle with high-pressure water outlet on the spindle core under high-temperature cleaning environment described in this invention are as follows: (1) The present invention provides a low-speed waterproof electric spindle with replaceable nozzles for high-pressure water output from the spindle under high-temperature cleaning conditions. A hollow structure is set inside the spindle to form a water channel. Water is supplied to the spindle through a water supply structure to achieve the effect of water output from the bottom of the spindle, which effectively improves cleaning efficiency and quality.

[0015] (2) The replaceable nozzle low-speed waterproof electric spindle with high pressure water output of shaft core under high temperature cleaning environment described in this invention adopts a dual structure design of compression spring clamping and edge anti-rotation, so as to realize the quick disassembly and assembly of nozzle, while ensuring that the nozzle connection is firm, does not slip or loosen, and reduces failure and maintenance costs.

[0016] (3) The replaceable nozzle low-speed waterproof electric spindle with high pressure water output from the shaft core under high temperature cleaning environment described in this invention has a simple overall structure, reduces manufacturing costs, reduces the number of parts, shortens the procurement and delivery cycle, and has higher market economy; it is suitable for high temperature cleaning environment, and the seal and channel can stably withstand ≤70MPa high pressure; it takes into account both high temperature resistance and waterproofness, and is stable in low-speed operation, which is suitable for complex working conditions of industrial high temperature and high pressure cleaning and has strong practicality. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0018] In the attached diagram: Figure 1 This is a schematic diagram of the structure of a low-speed waterproof electric spindle with replaceable nozzles for high-pressure water output from the spindle core under high-temperature cleaning environment, as described in this invention. Figure 2 This is a cross-sectional view of a low-speed waterproof electric spindle with replaceable nozzles for high-pressure water output from the spindle core under high-temperature cleaning conditions, as described in this invention. Figure 3 This is a schematic diagram of the water supply structure of a low-speed waterproof electric spindle with replaceable nozzles for high-pressure water output from the spindle core under high-temperature cleaning environment, as described in this invention. Figure 4 This is a cross-sectional view of a quick-change nozzle structure for a low-speed waterproof electric spindle with replaceable nozzles for high-pressure water output from the spindle core under high-temperature cleaning conditions, as described in this invention. Figure 5 This is a schematic diagram of the nozzle head of a low-speed waterproof electric spindle with replaceable nozzles for high-pressure water output from the spindle core under high-temperature cleaning environment, as described in this invention. Figure 6 This is a schematic diagram of the nozzle connector of a low-speed waterproof electric spindle with replaceable nozzles for high-pressure water output from the spindle core under high-temperature cleaning environment, as described in this invention. Figure 7 This is a cross-sectional view of the spindle of a low-speed waterproof electric spindle with replaceable nozzles for high-pressure water output in a high-temperature cleaning environment, as described in this invention. The components are: 1-servo motor, 2-reducer, 3-spindle, 4-water supply structure, 41-upper cover, 42-inner shell, 421-water inlet, 422-water inlet cavity, 43-lower cover, 44-lower flange, 5-quick-change nozzle structure, 51-transition flange, 52-compression spring, 53-compression spring base, 54-nozzle female head, 541-locking block, 542-limiting edge, 55-nozzle connector, 551-fixing block, 56-fixing nut, 6-sealing ring. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. The described embodiments are merely some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] Specific implementation method one: See Figures 1-7 This embodiment is described in detail. The low-speed waterproof electric spindle with replaceable nozzles and high-pressure water output from the spindle core under high-temperature cleaning conditions described in this embodiment specifically includes a rotary drive structure, a spindle 3, a water supply structure 4, and a quick-change nozzle structure 5. The lower end of the rotary drive structure is connected to the water supply structure 4; the upper end of the spindle 3 passes through the water supply structure 4 and is connected to the output end of the rotary drive structure; the lower end of the spindle 3 is provided with the quick-change nozzle structure 5; the lower half of the spindle 3 is hollow, and a through hole is radially provided in the middle of the spindle 3; the water supply structure 4 is connected to the hollow part of the spindle 3 through the through hole.

[0021] The water supply structure 4 includes an outer shell, an upper cover 41, an inner shell 42, a lower cover 43, and a lower flange 44. The upper cover 41, inner shell 42, lower cover 43, and lower flange 44 are rotatably mounted on the spindle 3 from top to bottom. The upper cover 41, inner shell 42, and lower cover 43 are connected from top to bottom. The upper cover 41 is connected to the outer shell. The upper end of the outer shell is connected to the rotary drive structure, and the lower end of the outer shell is connected to the lower flange 44. An inlet 421 is provided on one side of the inner shell 42, and an inlet cavity 422 is provided inside. The inlet 421, the inlet cavity 422, the through hole of the spindle 3, and the hollow part of the spindle 3 are connected in sequence. Water flows from the inlet 421 into the inlet cavity 422, and when the spindle 3 rotates, it enters the interior of the spindle 3 through the through hole and then sprays out from the lower end of the spindle 3.

[0022] A high-pressure rotary sealing structure is provided between the inner shell 42 and the spindle 3, corresponding to the positions above and below the water inlet cavity 422. The high-pressure rotary sealing structure is a sealing ring 6, which prevents water from leaking along the axial direction of the spindle 3.

[0023] The quick-change nozzle structure 5 includes a transition flange 51, a compression spring 52, a compression spring base 53, a nozzle female head 54, and a nozzle connector 55. The transition flange 51 is sleeved on the mandrel 3 and connected by a key. The lower end of the transition flange 51 and the nozzle female head 54 are connected by bolts. The entire quick-change nozzle structure 5 rotates synchronously with the mandrel 3. Two fixing nuts 56 are provided on the mandrel 3. The fixing nuts 56 axially position the transition flange 51 to prevent it from moving downward under gravity. The nozzle female head 54 is sleeved on the mandrel 3. The upper end of the nozzle connector 55 is inserted into the nozzle female head 54. The nozzle female head 54 and the nozzle connector 55 are movably connected. The nozzle connector 55 is connected to the hollow part of the mandrel 3. The compression spring 52 and the compression spring base 53 are sleeved on the spindle 3 and located between the transition flange 51 and the nozzle connector 55; the upper end of the compression spring 52 contacts the transition flange 51 and the lower end contacts the compression spring base 53; the lower surface of the compression spring base 53 contacts the upper end of the nozzle connector 55; the compression spring 52 and the compression spring base 53 press the nozzle connector 55 onto the nozzle female head 54.

[0024] like Figures 4-6 As shown, a plurality of locking blocks 541 are provided on the inner side of the nozzle head 54, and a plurality of fixing blocks 551 are provided on the outer side of the upper end of the nozzle connector 55. Both the locking blocks 541 and the fixing blocks 551 are provided with inclined conical surfaces. The conical surfaces of the locking blocks 541 are inclined upwards, and the conical surfaces of the fixing blocks 551 are inclined downwards. Both the locking blocks 541 and the fixing blocks 551 are wider at the top and narrower at the bottom. Under the action of the compression spring 52 and the compression spring base 53, the conical surfaces of the locking blocks 541 and the fixing blocks 551 are tightly fitted together to achieve axial positioning. The locking block 541 has limiting edges 542 on both sides. The fixing block 551 is inserted between the two limiting edges 542 to prevent the fixing block 551 and the locking block 541 from disengaging during rotation, thus positioning the nozzle connector 55 in the circumferential direction. During assembly, the fixing block 551 on the nozzle connector 55 is passed through the gap between the locking blocks 541. After the nozzle connector 55 pushes the spring base 53 upward, it rotates 60 degrees so that the fixing block 551 is directly above the locking block 541. Then, the nozzle connector 55 falls down so that the fixing block 551 falls between the two limiting edges 542 on the locking block 541. A sealing ring 6 is provided between the nozzle connector 55 and the spindle 3 to prevent water from entering the nozzle head 54.

[0025] The rotary drive structure includes a servo motor 1 and a reducer 2. The output end of the servo motor 1 and the input end of the reducer 2 are connected by a coupling. The output end of the reducer 2 and the spindle 3 are connected by a coupling, thereby driving the spindle 3 to rotate.

[0026] In summary, the low-speed waterproof electric spindle with replaceable nozzles and high-pressure water output from the spindle core under high-temperature cleaning environments described in this invention features a hollow structure inside the spindle 3 to form a water channel. Water is supplied to the spindle 3 through the water supply structure 4, achieving water output from the bottom of the spindle 3, effectively improving cleaning efficiency and quality. This invention employs a dual-structure design with a compression spring 52 and a limiting edge 542 to prevent rotation, enabling quick nozzle assembly and disassembly while ensuring a secure nozzle connection, preventing slippage and loosening, thus reducing malfunctions and maintenance costs. This invention also features a simple overall structure, reducing manufacturing costs, minimizing the number of parts, shortening procurement and delivery cycles, and improving market economics. It is suitable for high-temperature cleaning environments, with seals and channels capable of stably withstanding ≤70MPa high pressure. Overall, it balances high-temperature resistance and waterproofing, ensuring stable low-speed operation and adaptability to complex industrial high-temperature and high-pressure cleaning conditions, making it highly practical.

[0027] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the invention. They can also be reasonable combinations of the features described in the above embodiments. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A low-speed waterproof electric spindle with replaceable nozzles for high-pressure water output from the spindle core under high-temperature cleaning conditions, characterized in that: The device includes a rotary drive structure, a spindle (3), a water supply structure (4), and a quick-change nozzle structure (5). The lower end of the rotary drive structure is connected to the water supply structure (4). The upper end of the spindle (3) passes through the water supply structure (4) and is connected to the output end of the rotary drive structure. The lower end of the spindle (3) is provided with a quick-change nozzle structure (5). The lower half of the spindle (3) is hollow, and a through hole is provided radially in the middle of the spindle (3). The water supply structure (4) is connected to the hollow part of the spindle (3) through the through hole. The quick-change nozzle structure (5) includes a nozzle head (54) and a nozzle connector (55). The nozzle head (54) is sleeved on the spindle (3). The upper end of the nozzle connector (55) is inserted into the nozzle head (54) and is movably connected to the nozzle head (54). The nozzle connector (55) is connected to the hollow part of the spindle (3).

2. The low-speed waterproof electric spindle with replaceable nozzles for high-pressure water outlet on the spindle core under high-temperature cleaning environment as described in claim 1, characterized in that: The water supply structure (4) includes an upper cover (41), an inner shell (42), a lower cover (43), and a lower flange (44). The upper cover (41), the inner shell (42), the lower cover (43), and the lower flange (44) are rotatably mounted on the spindle (3) from top to bottom. The upper cover (41), the inner shell (42), and the lower cover (43) are connected from top to bottom. A water inlet (421) is provided on one side of the inner shell (42), and a water inlet cavity (422) is provided inside. The water inlet (421), the water inlet cavity (422), the through hole, and the spindle (3) are connected in sequence.

3. The low-speed waterproof electric spindle with replaceable nozzles for high-pressure water outlet on the spindle core under high-temperature cleaning environment as described in claim 2, characterized in that: A sealing structure is provided between the inner shell (42) and the spindle (3) at positions above and below the water inlet cavity (422).

4. The low-speed waterproof electric spindle with replaceable nozzles for high-pressure water outlet on the spindle core under high-temperature cleaning environment as described in claim 3, characterized in that: The sealing structure is a sealing ring (6).

5. The low-speed waterproof electric spindle with replaceable nozzles for high-pressure water outlet on the spindle core under high-temperature cleaning environment as described in claim 1, characterized in that: The quick-change nozzle structure (5) also includes a transition flange (51), which is sleeved on the mandrel (3). The lower end of the transition flange (51) is connected to the nozzle head (54). Two fixing nuts (56) are provided on the mandrel (3), which axially position the transition flange (51).

6. The low-speed waterproof electric spindle with replaceable nozzles for high-pressure water outlet on the spindle core under high-temperature cleaning environment as described in claim 5, characterized in that: The nozzle head (54) has several locking blocks (541) on its inner side, and the nozzle connector (55) has several fixing blocks (551) on its upper outer side. Both the locking block (541) and the fixing block (551) have inclined conical surfaces, and the conical surfaces of the locking block (541) and the fixing block (551) fit tightly together.

7. The low-speed waterproof electric spindle with replaceable nozzles for high-pressure water outlet on the spindle core under high-temperature cleaning environment as described in claim 6, characterized in that: The locking block (541) has limiting edges (542) on both sides, and the fixing block (551) is inserted between the two limiting edges (542).

8. The low-speed waterproof electric spindle with replaceable nozzles for high-pressure water outlet on the spindle core under high-temperature cleaning environment as described in claim 7, characterized in that: The quick-change nozzle structure (5) also includes a compression spring (52) and a compression spring base (53), which are sleeved on the spindle (3); the upper end of the compression spring (52) contacts the transition flange (51), and the lower end contacts the compression spring base (53); the lower surface of the compression spring base (53) contacts the upper end of the nozzle connector (55).

9. The low-speed waterproof electric spindle with replaceable nozzles for high-pressure water outlet on the spindle core under high-temperature cleaning environment as described in claim 1, characterized in that: A sealing ring (6) is provided between the nozzle connector (55) and the spindle (3).

10. The low-speed waterproof electric spindle with replaceable nozzles for high-pressure water outlet on the spindle core under high-temperature cleaning environment as described in claim 1, characterized in that: The rotary drive structure includes a servo motor (1) and a reducer (2). The output end of the servo motor (1) is connected to the input end of the reducer (2), and the output end of the reducer (2) is connected to the spindle (3).

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