Cleaning turret with self-balancing sealing structure

Abstract

The cleaning tool turret with the self-balancing sealing structure comprises a rotating disc, shaft sleeves, nozzle shafts, sealing rings and wave springs, the shaft sleeves are evenly distributed on the outer side face of the rotating disc, the nozzle shafts are rotationally connected with the shaft sleeves, liquid inlet holes are formed in the rotating disc, and liquid outlet flow channels are formed in the nozzle shafts; a liquid guide hole communicated with the liquid outlet runner is formed in the side wall of the nozzle shaft, a liquid guide runner communicated with the liquid inlet hole and the liquid guide hole is formed in the shaft sleeve, the sealing rings are symmetrically arranged on the two sides of the liquid guide hole of the nozzle shaft in a sleeving mode, a liquid guide gap is formed between the sealing rings, and the wave spring is arranged on the nozzle shaft in a sleeving mode and arranged in the liquid guide gap. A plurality of flow guide grooves are formed in the end face of the side, away from the liquid guide hole, of the sealing ring and extend outwards in the radial direction from the inner ring wall of the sealing ring. The self-balancing effect of pressure on the two sides of the sealing ring can be achieved, meanwhile, the friction force between the sealing ring and the nozzle shaft can be reduced, the sealing ring is prevented from being washed away and damaged, and the service life of the sealing ring is effectively prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning turrets, and in particular to a cleaning turret with a self-balancing sealing structure. Background Art

[0002] Machining center plays a vital role in the field of modern manufacturing. It is a multifunctional and efficient machine tool widely used in metal processing, parts manufacturing and other fields. The emergence of machining center has greatly improved the processing efficiency, precision and flexibility, and has become an indispensable equipment in the manufacturing industry. First of all, the machining center has a multi-axis control system, which can process in multiple directions at the same time, realizing high-precision processing of complex parts.

[0003] After the machining center processes the parts, there will be a lot 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. At present, the processed parts are mainly rinsed by a cleaning machine. 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 butt against the end face of the nozzle shaft. In this way, the oil seal and the nozzle shaft will produce severe friction during high-speed rotation, which can easily cause the nozzle shaft to be washed away and squeezed, causing it to lose its sealing performance and a shorter service life. And when starting the nozzle shaft to rotate, the oil seal is tightly fitted with the nozzle shaft due to the water pressure, which requires a large starting torque and has higher driving requirements for the drive motor.

[0004] In view of this, the applicant conducted in-depth research on the above issues, which led to the present case. Summary of the invention

[0005] The main purpose of the present invention 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 object, the solution of the present invention is:

[0007] A cleaning turret with a self-balancing sealing structure comprises a rotating disk, a shaft sleeve, a nozzle shaft, a sealing ring and a wave spring, wherein the shaft sleeve is evenly arranged on the outer side of the rotating disk, the nozzle shaft is rotatably connected to the shaft sleeve, a liquid inlet hole is arranged inside the rotating disk, a liquid outlet channel is arranged inside the nozzle shaft, a liquid guide hole connected to the liquid outlet channel is arranged on the side wall of the nozzle shaft, a liquid guide channel connected to the liquid inlet hole and the liquid guide hole is arranged inside the shaft sleeve, the sealing rings are symmetrically sleeved on both sides of the liquid guide hole of the nozzle shaft, a liquid guide gap is formed between the sealing rings, the wave spring is sleeved on the nozzle shaft and arranged in the liquid guide gap, a plurality of guide grooves are arranged on the end face of the sealing ring away from the liquid guide hole, and the guide grooves are connected by the sealing ring The inner ring wall extends outward in the radial direction, the inner sleeve of the shaft sleeve is provided with a sliding guide sleeve, 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, the second annular flow channel is provided with a plurality of through holes arranged therethrough, a positioning groove is provided on the inner side wall of the guide sleeve, a positioning boss is provided on the outer end surface of the sealing ring, the positioning boss and the positioning groove are fitted with each other, a connected drainage flow channel and a drainage cavity are provided inside the shaft sleeve, a drainage hole connected to the drainage flow 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 flow channel.

[0008] Furthermore, the inner wall of the shaft sleeve forms a first annular flow channel connected to the liquid guiding channel.

[0009] Furthermore, the nozzle shaft is provided with a positioning portion, a detachable locking ring is provided at the end of the positioning portion, and the sealing ring is sleeved on the positioning portion, 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 slidably 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 arranged in the mounting groove in sequence.

[0013] Furthermore, a liquid inlet channel is provided on the inner end surface of the rotating disk, and the liquid inlet channel is connected 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 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 to prevent 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, liquid inlet hole, liquid guide hole and through hole to the liquid guide gap in sequence. 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. Realizing the 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 working, the high-speed rotation of the nozzle shaft may cause the nozzle shaft to move slightly in the axial direction. Since the guide sleeve is tightly mounted on the sealing ring, the sealing ring is installed more firmly. When the nozzle shaft moves axially, the sealing ring can drive the guide sleeve to move together, which can effectively prevent the sealing ring from being displaced and squeezed out and damaged, and further improve the sealing performance of the sealing ring on the nozzle shaft.

[0017] (3) The shaft sleeve of the present invention is provided with a drainage hole and a drainage channel. 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 seeps out of 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 to prevent 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 invention.

[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.

[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 appearance structure of the seal.

[0023] Figure 6 It is a three-dimensional schematic diagram of the appearance 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, discharge channel 25, discharge cavity 26, discharge 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 is 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 arranged on the outer side of the rotating disk 1, and the sleeve 2 is fixed to the rotating disk 1 by screws. The nozzle shaft 3 is rotatably connected with the sleeve 2 through a bearing. A liquid inlet hole 11 is provided inside the rotating disk 1. A liquid inlet channel 12 is provided on the inner end surface of the rotating disk 1, and the liquid inlet channel 12 is connected with the liquid inlet hole 11. A liquid outlet channel 31 is provided inside the nozzle shaft 3, and a liquid guide hole 32 connected with 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 with the liquid guide channel 21, so that water can enter the nozzle shaft 3 no matter how the nozzle shaft 3 rotates. The sealing ring 4 is sleeved on the nozzle shaft 3 and symmetrically arranged on both sides of the liquid guide hole 32 of the nozzle shaft 3. There is a liquid guide gap 33 between the sealing rings 4. The wave spring 5 is sleeved on the nozzle shaft 3 and arranged in the liquid guide gap 33. In the initial state, the wave spring 5 can push the sealing rings 4 on both sides outward. The sealing ring 4 is provided with a plurality of guide grooves 41 on the end surface away from the liquid guide hole 32. The guide grooves 41 extend outward from the inner ring wall of the sealing ring 4 in the radial direction. After adopting the above structure, during operation, water enters the rotating disk 1 from the main box body and flows into the liquid guide gap 33 along the liquid inlet channel 12, the liquid inlet hole 11, the liquid guide hole 32 and the through hole 62 in sequence. 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 is more closely attached 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 amount of water injected 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, prevents the sealing ring 4 from being washed away and damaged, and effectively improves the service life of the sealing ring 4.

[0027] In this embodiment, the nozzle shaft 3 is provided with a positioning portion 34, and a detachably connected locking ring 35 is provided at the end of the positioning portion 34. Specifically, the locking ring 35 is threadedly connected to the positioning portion 34. The sealing ring 4 is sleeved on both sides of the positioning portion 34, and the outer end surface of the sealing ring 4 on one side abuts against the side wall of the positioning portion 34, and the outer end surface of the sealing ring 4 on the other side abuts against the side wall of the locking ring 35. The above structure makes it easier to disassemble and assemble the sealing ring 4, and more secure to install.

[0028] In this embodiment, a guide sleeve 6 is provided inside the sleeve 2 and is slidably connected. The guide sleeve 6 is sleeved on the outside of the sealing ring 4. A second annular flow channel 61 is provided on the outer wall of the guide sleeve 6. The second annular flow channel 61 and the first annular flow channel 22 are arranged correspondingly to ensure that water can smoothly enter the nozzle shaft 3. The second annular flow channel 61 is provided with a plurality of through holes 62, which are connected to the liquid guide gap 33. A positioning groove 63 is provided on the inner wall of the guide sleeve 6, and a positioning boss 42 is provided on the outer end surface of the sealing ring 4. The positioning boss 42 and the positioning groove 63 are mutually engaged, so that the guide sleeve 6 can be fixedly connected between the two sealing rings 4. In addition, a limiting boss 64 protruding outward is provided on the outer surface of the guide sleeve 6, and a limiting groove that is slidably matched with the limiting boss 64 is provided on the inner wall of the sleeve 2. The limiting boss 64 can limit the rotation of the guide sleeve 6, so that the guide sleeve 6 can only move in the axial direction. 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 can generate extrusion and friction forces, so that the guide sleeve 6 and the sealing ring 4 are closely matched, and the axial movement of the guide sleeve 6 is restricted. When the present invention 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 prevent the displacement of the sealing ring 4, prevent 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 shaft sleeve 2 is provided with a connected drainage channel 25 and a drainage cavity 26, and the inner side wall of the shaft sleeve 2 is provided with a drainage hole 27 connected with the drainage channel 25. A spring 28 and a steel ball 29 are provided inside the drainage cavity 26, one end of the spring 28 abuts against the side wall of the drainage cavity 26, and the other end of the spring 28 abuts the steel ball 29 to the liquid outlet end of the drainage channel 25. The shaft sleeve 2 of the present invention is provided with a drainage hole 27 and a drainage channel 25. When the sealing ring 4 leaks after long-term use, the leaked water can be guided to the drainage channel 25 through the drainage hole 27. When the water in the drainage channel 25 increases, the water pressure is greater than the pressure of the spring 28 to push the steel ball 29 out, so that the water can flow out through the drainage cavity 26. When water seeps out of the drainage cavity 26, the user can be prompted to replace the sealing ring 4 inside the shaft sleeve 2 in time. 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 ring are arranged in sequence. The oil seal ring can seal the end of the shaft sleeve 2, further improving the sealing performance of the present invention.

[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 shaft sleeve, a nozzle shaft, a sealing ring and a wave spring, wherein the shaft sleeve is evenly arranged on the outer side of the rotating disk, the nozzle shaft is rotatably connected with the shaft sleeve, a liquid inlet hole is arranged inside the rotating disk, a liquid outlet channel is arranged inside the nozzle shaft, a liquid guide hole connected with the liquid outlet channel is arranged on the side wall of the nozzle shaft, a liquid guide channel connected with the liquid inlet hole and the liquid guide hole is arranged inside the shaft sleeve, the sealing rings are symmetrically sleeved on both sides of the liquid guide hole of the nozzle shaft, a liquid guide gap is provided between the sealing rings, the wave spring is sleeved on the nozzle shaft and arranged in the liquid guide gap, a plurality of guide grooves are arranged on the end face of the sealing ring away from the liquid guide hole, and the guide grooves are 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, the guide sleeve is arranged on the outside of the sealing ring, the outer wall of the guide sleeve is provided with a second annular flow channel, the second annular flow channel is provided with a plurality of through holes, the inner wall of the guide sleeve is provided with a positioning groove, the outer end surface of the sealing ring is provided with a positioning boss, the positioning boss and the positioning groove are fitted with each other, a connected drainage channel and a drainage cavity are provided inside the sleeve, the inner wall of the sleeve is provided with a drainage hole connected with the drainage channel, 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. A cleaning turret with a self-balancing sealing structure as claimed in claim 1, characterized in that: The inner wall of the shaft sleeve forms a first annular flow channel which is communicated with the liquid guiding flow channel.

3. The cleaning turret with a self-balancing sealing structure as claimed in claim 1, characterized in that: The nozzle shaft is provided with a positioning part, and a detachably connected locking ring is provided at the end of the positioning part. The sealing ring is sleeved on the positioning part, and 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. A cleaning turret with a self-balancing sealing structure as claimed in claim 3, characterized in that: A limiting boss protruding outward is arranged on the outer side surface of the guide sleeve, and a limiting groove which is slidably matched with the limiting boss is arranged on the inner side wall of the shaft sleeve.

5. The cleaning turret with a self-balancing sealing structure as claimed in claim 3, characterized in that: A sealing annular groove is arranged 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 as claimed in claim 1, characterized in that: A mounting groove is arranged at the end of the shaft sleeve, and a bearing, an elastic member and an oil seal ring are arranged in the mounting groove in sequence.

7. The cleaning turret with a self-balancing sealing structure as claimed in claim 1, characterized in that: A liquid inlet channel is arranged on the inner end surface of the rotating disk, and the liquid inlet channel is communicated with the liquid inlet hole.

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