Cleaning turret with self-balancing sealing structure
The design of the self-balancing sealing structure solves the problem of decreased sealing performance of the cleaning machine nozzle shaft, improves the sealing effect and extends the service life, and reduces the starting torque requirement.
Patent Information
- Application Number
- CN202422655124.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-10-31
AI Technical Summary
When the nozzle shaft of a traditional cleaning machine rotates at high speed, the oil seal and the nozzle shaft rub violently, resulting in reduced sealing performance, short service life, and high starting torque requirements.
The self-balancing sealing structure is adopted, including the sealing ring, wave spring, guide sleeve and drainage channel. The water pressure balance and guide groove design reduce friction and achieve self-balancing of the sealing ring. Combined with the drainage channel, it prompts timely replacement to prevent leakage.
The sealing effect and service life of the sealing ring are improved, the starting torque requirement is reduced, the sealing ring is prevented from being damaged, and the stable operation of the cleaning machine is ensured.
Smart Images
Figure CN223382144U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cleaning turrets, in particular to a cleaning turret with a self-balancing sealing structure. Background Art
[0002] Machining centers play a vital role in modern manufacturing. As versatile and efficient machine tools, they are widely used in metalworking, parts manufacturing, and other fields. The advent of machining centers has greatly improved machining efficiency, precision, and flexibility, making them indispensable equipment in the manufacturing industry. Firstly, machining centers feature multi-axis control systems, enabling simultaneous machining in multiple directions, enabling high-precision machining of complex parts.
[0003] After the machining center processes the parts, there will be a large amount of iron filings and oil stains inside the machining holes and on the surface of the parts, so the processed parts need to be accurately cleaned. Currently, the processed parts are mainly rinsed by cleaning machines. When the traditional cleaning machine nozzle cleans the parts, the nozzle will rotate at high speed and generate high water pressure. Therefore, when water enters the nozzle spindle, the inner end face of the oil seal will be subjected to a large water pressure, causing the oil seal to hit the end face of the nozzle shaft. This will cause severe friction between the oil seal and the nozzle shaft during high-speed rotation, which can easily cause the nozzle shaft to be washed away and squeezed, resulting in loss of sealing performance and a shorter service life. In addition, when starting the nozzle shaft to rotate, the oil seal is tightly fitted with the nozzle shaft under water pressure, requiring a large starting torque, which places higher requirements on the drive motor.
[0004] In view of this, the applicant conducted in-depth research on the above issues, which led to the present case. Utility Model Content
[0005] The main purpose of the utility model is to provide a cleaning turret with a self-balancing sealing structure, which can effectively solve the above technical problems.
[0006] In order to achieve the above objectives, the solution of the present invention is:
[0007] A cleaning turret with a self-balancing sealing structure includes a rotating disk, a sleeve, a nozzle shaft, a sealing ring and a wave spring. The sleeve is evenly distributed and arranged on the outer side of the rotating disk. The nozzle shaft is rotatably connected to the sleeve. A liquid inlet is provided inside the rotating disk. A liquid outlet channel is provided inside the nozzle shaft. A liquid guide hole connected to the liquid outlet channel is provided on the side wall of the nozzle shaft. A liquid guide channel connecting the liquid inlet and the liquid guide hole is provided inside the sleeve. The sealing rings are symmetrically sleeved on both sides of the liquid guide hole of the nozzle shaft. There is a liquid guide gap between the sealing rings. The wave spring is sleeved on the nozzle shaft and arranged in the liquid guide gap. The sealing ring is provided with a plurality of guide grooves on the end face away from the liquid guide hole. The guide grooves are connected by the sealing ring. The inner ring wall extends outward in the radial direction, and the inner sleeve of the shaft sleeve is provided with a guide sleeve in a sliding connection, and the guide sleeve is arranged on the outer side of the sealing ring. A second annular flow channel is provided on the outer wall of the guide sleeve, and a plurality of through holes are provided on the second annular flow channel. A positioning groove is provided on the inner side wall of the guide sleeve, and a positioning boss is provided on the outer end surface of the sealing ring. The positioning boss and the positioning groove are embedded in each other. A connected drainage channel and a drainage cavity are provided inside the shaft sleeve, and a drainage hole connected to the drainage channel is provided on the inner side wall of the shaft sleeve. A spring and a steel ball are provided inside the drainage cavity. One end of the spring is against the side wall of the drainage cavity, and the other end of the spring pushes the steel ball to the liquid outlet end of the drainage channel.
[0008] Furthermore, the inner wall of the sleeve forms a first annular flow channel connected to the liquid guide channel.
[0009] Furthermore, the nozzle shaft is provided with a positioning portion, and the end of the positioning portion is provided with a detachable locking ring, and the sealing ring is sleeved on the positioning portion, and the outer end surface of the sealing ring on one side abuts against the side wall of the positioning portion, and the outer end surface of the sealing ring on the other side abuts against the side wall of the locking ring.
[0010] Furthermore, a limiting boss protruding outward is provided on the outer side surface of the guide sleeve, and a limiting groove slidingly matched with the limiting boss is provided on the inner side wall of the shaft sleeve.
[0011] Furthermore, a sealing annular groove is provided on the inner side wall of the shaft sleeve, a sealing ring is embedded in the sealing annular groove, and the sealing ring is sleeved on the guide sleeve.
[0012] Furthermore, a mounting groove is provided at the end of the shaft sleeve, and a bearing, an elastic member and an oil seal ring are sequentially arranged in the mounting groove.
[0013] Furthermore, a liquid inlet channel is provided on the inner end surface of the rotating disk, and the liquid inlet channel is communicated with the liquid inlet hole.
[0014] Compared with the prior art, the beneficial effects are:
[0015] (1) In the present invention, the sealing rings on both sides are initially fixed to the positioning part of the nozzle shaft by means of wave springs, so that the connection between the sealing ring and the side wall of the positioning part and the connection between the sealing ring and the side wall of the locking ring are sealed, thereby preventing water from leaking out of the positioning part. During operation, water enters the rotating disk from the main housing and flows along the liquid inlet channel, the liquid inlet hole, the liquid guide hole and the through hole to the liquid guide gap. At this time, the water pressure on the inner side of the sealing ring first applies an outward pressure to the sealing ring, so that the sealing ring fits more closely to the side wall of the positioning part and the side wall of the locking ring, further improving the sealing effect. When the amount of water injected gradually increases, the water flows along the gap of the inner ring wall of the sealing ring to the guide groove, so that the guide groove is filled with water. The water pressure in the guide groove applies an inward pressure to the sealing ring, thereby reducing the pressure exerted by the sealing ring on the side wall of the positioning part and the side wall of the locking ring. As the pressure exerted by the sealing ring is reduced, the torque required for starting the nozzle shaft is also greatly reduced. Achieving a self-balancing effect of the pressure on both sides of the sealing ring not only improves the sealing effect of the sealing ring, but also reduces the friction between the sealing ring and the nozzle shaft, preventing the sealing ring from being washed away and damaged, and effectively increasing the service life of the sealing ring.
[0016] (2) When the present invention is in operation, the high-speed rotation of the nozzle shaft may cause the nozzle shaft to move slightly axially. Since the guide sleeve is tightly mounted on the sealing ring, the sealing ring is more securely installed. When the nozzle shaft moves axially, the sealing ring can drive the guide sleeve to move along with it, which can effectively prevent the sealing ring from being displaced and damaged by being squeezed out, further improving the sealing performance of the sealing ring on the nozzle shaft.
[0017] (3) The utility model provides a drainage hole and a drainage channel in the shaft sleeve. When the sealing ring leaks after long-term use, the leaked water can be diverted to the drainage channel through the drainage hole. When the water in the drainage channel increases, the water pressure is greater than the spring pressure to push the steel ball out, so that the water can flow out through the drainage cavity. When water leaks from the drainage cavity, the user can be prompted to replace the sealing ring inside the shaft sleeve in time. During normal operation, the spring can push against the steel ball to tightly seal the drainage channel, preventing the splashed water from flowing back into the shaft sleeve during operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a side view of the cross-sectional structure of the present utility model.
[0019] Figure 2 It is a rear view of the cross-sectional structure of the present invention.
[0020] Figure 3 for Figure 2 A partial enlarged view of area A in the middle.
[0021] Figure 4 for Figure 3 A partial enlarged view of area B in the middle.
[0022] Figure 5 It is a three-dimensional schematic diagram of the outer structure of the seal.
[0023] Figure 6 It is a three-dimensional schematic diagram of the external structure of the guide sleeve.
[0024] In the figure: rotating disk 1, liquid inlet hole 11, liquid inlet channel 12, sleeve 2, liquid guide channel 21, first annular channel 22, sealing annular groove 23, sealing ring 24, drainage channel 25, drainage cavity 26, drainage hole 27, spring 28, steel ball 29, nozzle shaft 3, liquid outlet channel 31, liquid guide hole 32, liquid guide gap 33, positioning part 34, locking ring 35, sealing ring 4, guide groove 41, positioning boss 42, wave spring 5, guide sleeve 6, second annular channel 61, through hole 62, positioning groove 63, limiting boss 64. DETAILED DESCRIPTION
[0025] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.
[0026] like Figure 1-6As shown, a cleaning turret with a self-balancing sealing structure includes a rotating disk 1, a sleeve 2, a nozzle shaft 3, a sealing ring 4 and a wave spring 5. The sleeve 2 is evenly distributed on the outer side of the rotating disk 1 and is fixed to the rotating disk 1 by screws. The nozzle shaft 3 and the sleeve 2 are rotatably connected through a bearing. A liquid inlet hole 11 is provided inside the rotating disk 1, and a liquid inlet channel 12 is provided on the inner end surface of the rotating disk 1. The liquid inlet channel 12 is connected to the liquid inlet hole 11. A liquid outlet channel 31 is provided inside the nozzle shaft 3, and a liquid guide hole 32 connected to the liquid outlet channel 31 is provided on the side wall of the nozzle shaft 3. A liquid guide channel 21 connecting the liquid inlet hole 11 and the liquid guide hole 32 is provided inside the sleeve 2. The inner wall of the sleeve 2 forms a first annular channel 22 connected to the liquid guide channel 21, so that water can enter the nozzle shaft 3 no matter how the nozzle shaft 3 rotates. The sealing rings 4 are mounted on the nozzle shaft 3 and symmetrically arranged on either side of the liquid guide hole 32. A liquid guide gap 33 is defined between the sealing rings 4. The wave spring 5 is mounted on the nozzle shaft 3 and positioned within the liquid guide gap 33. Initially, the wave spring 5 pushes the sealing rings 4 on both sides outward. Several guide grooves 41 are defined on the end face of the sealing ring 4 facing away from the liquid guide hole 32. These grooves 41 extend radially outward from the inner wall of the sealing ring 4. After adopting the above structure, during operation, water enters the rotating disk 1 from the main box and flows in sequence along the liquid inlet channel 12, the liquid inlet hole 11, the liquid guide hole 32 and the through hole 62 to the liquid guide gap 33. At this time, the water pressure on the inner side of the sealing ring 4 first applies an outward pressure to the sealing ring 4, so that the sealing ring 4 fits more closely to the side wall of the positioning portion 34 and the side wall of the locking ring 35, further improving the sealing effect. When the injected water gradually increases, the water flows along the gap of the inner ring wall of the sealing ring 4 to the guide groove 41, so that the guide groove 41 is filled with water. The water pressure in the guide groove 41 applies an inward pressure to the sealing ring 4, thereby reducing the pressure generated by the sealing ring 4 on the side wall of the positioning portion 34 and the side wall of the locking ring 35. Since the pressure applied by the sealing ring 4 is reduced, the torque required for starting the nozzle shaft 3 is also greatly reduced. Achieving a self-balancing effect of the pressure on both sides of the sealing ring 4 not only improves the sealing effect of the sealing ring 4, but also reduces the friction between the sealing ring 4 and the nozzle shaft 3, preventing the sealing ring 4 from being washed away and damaged, and effectively improving the service life of the sealing ring 4.
[0027] In this embodiment, the nozzle shaft 3 is provided with a positioning portion 34, the distal end of which is provided with a removable locking ring 35. Specifically, the locking ring 35 is threadedly connected to the positioning portion 34. A sealing ring 4 is sleeved on either side of the positioning portion 34, with the outer end surface of the sealing ring 4 on one side abutting against the side wall of the positioning portion 34, and the outer end surface of the sealing ring 4 on the other side abutting against the side wall of the locking ring 35. This structure facilitates assembly and disassembly of the sealing ring 4 and provides a more secure installation.
[0028] In this embodiment, a guide sleeve 6 is slidably mounted within the shaft sleeve 2 and positioned outside the sealing ring 4. A second annular channel 61 is provided on the outer wall of the guide sleeve 6. This second annular channel 61 corresponds to the first annular channel 22, ensuring smooth water flow into the nozzle shaft 3. Several through-holes 62 extend through the second annular channel 61, communicating with the liquid guide gap 33. A positioning groove 63 is provided on the inner wall of the guide sleeve 6. A positioning boss 42 is provided on the outer end surface of the sealing ring 4. The positioning boss 42 engages with the positioning groove 63, securing the guide sleeve 6 between the two sealing rings 4. Furthermore, an outwardly projecting stopper 64 is provided on the outer surface of the guide sleeve 6. A stopper groove is provided on the inner wall of the shaft sleeve 2, slidably engaging with the stopper 64. The stopper 64 restricts the rotation of the guide sleeve 6, limiting its axial movement. A sealing annular groove 23 is provided on the inner wall of the sleeve 2. Specifically, the sealing ring 4 grooves are tightly arranged on both sides of the first annular flow channel 22. A sealing ring 24 is embedded in the sealing annular groove 23. The sealing ring 24 is sleeved on the guide sleeve 6. The sealing ring 24 can fix the contact surface between the guide sleeve 6 and the sleeve 2, and at the same time can generate extrusion and friction, so that the guide sleeve 6 and the sealing ring 4 are closely matched, and the guide sleeve 6 is restricted from axial movement. When the utility model is working, the high-speed rotation of the nozzle shaft 3 may cause the nozzle shaft 3 to move slightly axially. Since the guide sleeve 6 is tightly sleeved on the sealing ring 4, the sealing ring 4 is installed more firmly. When the nozzle shaft 3 undergoes axial translation, the sealing ring 4 can drive the guide sleeve 6 to translate together, which can effectively avoid the displacement of the sealing ring 4, avoid the sealing ring 4 from being squeezed out and damaged, and further improve the sealing performance of the sealing ring 4 to the nozzle shaft 3.
[0029] In this embodiment, the sleeve 2 is provided with a drain channel 25 and a drain cavity 26, and the inner sidewall of the sleeve 2 is provided with a drain hole 27 connected to the drain channel 25. A spring 28 and a steel ball 29 are provided within the drain cavity 26. One end of the spring 28 abuts against the sidewall of the drain cavity 26, while the other end of the spring 28 pushes the steel ball 29 toward the outlet of the drain channel 25. The sleeve 2 of this utility model is provided with a drain hole 27 and a drain channel 25. If the sealing ring 4 leaks after prolonged use, the leaked water can be diverted through the drain hole 27 to the drain channel 25. When the water in the drain channel 25 increases, the water pressure exceeds the pressure of the spring 28, pushing the steel ball 29 out, allowing the water to flow out through the drain cavity 26. If water seeps out of the drain cavity 26, the user is prompted to promptly replace the sealing ring 4 within the sleeve 2. During normal operation, the spring 28 can push against the steel ball 29 to tightly seal the drainage channel 25, thereby preventing splashed water from flowing back into the shaft sleeve 2 during operation.
[0030] The end of the shaft sleeve 2 is provided with a mounting groove, in which a bearing, an elastic member and an oil seal are sequentially arranged. The oil seal can seal the end of the shaft sleeve 2, further improving the sealing performance of the utility model.
[0031] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.
Claims
1. A cleaning turret with a self-balancing sealing structure, characterized in that: The utility model comprises a rotating disk, a sleeve, a nozzle shaft, a sealing ring and a wave spring. The sleeve is evenly distributed and arranged on the outer side of the rotating disk. The nozzle shaft is rotatably connected to the sleeve. A liquid inlet hole is provided inside the rotating disk. A liquid outlet channel is provided inside the nozzle shaft. A liquid guide hole communicating with the liquid outlet channel is provided on the side wall of the nozzle shaft. A liquid guide channel communicating with the liquid inlet hole and the liquid guide hole is provided inside the sleeve. The sealing rings are symmetrically sleeved on both sides of the liquid guide hole of the nozzle shaft. There is a liquid guide gap between the sealing rings. The wave spring is sleeved on the nozzle shaft and arranged in the liquid guide gap. The sealing ring is provided with a plurality of guide grooves on the end face away from the liquid guide hole. The guide groove is radially formed by the inner ring wall of the sealing ring. Extending outward, the inner sleeve of the sleeve is provided with a sliding guide sleeve, and the guide sleeve is arranged on the outside of the sealing ring. A second annular flow channel is provided on the outer wall of the guide sleeve, and a plurality of through holes are provided on the second annular flow channel. A positioning groove is provided on the inner wall of the guide sleeve, and a positioning boss is provided on the outer end surface of the sealing ring. The positioning boss and the positioning groove are engaged with each other. A connected drainage channel and a drainage cavity are provided inside the sleeve, and a drainage hole connected to the drainage channel is provided on the inner wall of the sleeve. A spring and a steel ball are provided inside the drainage cavity. One end of the spring is against the side wall of the drainage cavity, and the other end of the spring pushes the steel ball to the liquid outlet end of the drainage channel.
2. The cleaning turret with a self-balancing sealing structure according to claim 1, characterized in that: The inner wall of the shaft sleeve forms a first annular flow channel which is in communication with the liquid guide channel.
3. The cleaning turret with a self-balancing sealing structure according to claim 1, characterized in that: The nozzle shaft is provided with a positioning part, the end of the positioning part is provided with a detachable locking ring, the sealing ring is sleeved on the positioning part, the outer end surface of the sealing ring on one side abuts against the side wall of the positioning part, and the outer end surface of the sealing ring on the other side abuts against the side wall of the locking ring.
4. The cleaning turret with a self-balancing sealing structure according to claim 3, characterized in that: A limiting boss protruding outward is provided on the outer side surface of the guide sleeve, and a limiting groove slidingly matched with the limiting boss is provided on the inner side wall of the shaft sleeve.
5. The cleaning turret with a self-balancing sealing structure according to claim 3, characterized in that: A sealing annular groove is provided on the inner side wall of the shaft sleeve, a sealing ring is embedded in the sealing annular groove, and the sealing ring is sleeved on the guide sleeve.
6. The cleaning turret with a self-balancing sealing structure according to claim 1, characterized in that: The end of the shaft sleeve is provided with a mounting groove, and the mounting groove is provided with a bearing, an elastic member and an oil seal ring in sequence.
7. The cleaning turret with a self-balancing sealing structure according to claim 1, characterized in that: A liquid inlet channel is provided on the inner end surface of the rotating disk, and the liquid inlet channel is communicated with the liquid inlet hole.