Integrated multistage radial soft end face stirrer shaft seal

Abstract

The invention discloses an integrated multistage radial soft end face stirrer shaft seal, and particularly relates to the technical field of shaft seals, which comprises a sealing cavity sleeve, two brackets, a groove ring and a fitting detection mechanism, wherein the fitting detection mechanism comprises a stirring shaft, a large gear ring, a rotating ring and a linkage strip; the fitting detection mechanism further comprises a sleeve frame, a leakage detector, a pinion and a rotating rod; the pinion is in meshing transmission connection with the outer wall of the large gear ring, and the rotating rod is fixedly located on the inner wall of the pinion; a sealing oil suction mechanism is installed at the bottom end of the inner wall of the groove ring. A flow guide lubricating assembly is installed on the upper surface of the sealing cavity sleeve. Through the fitting detection mechanism, the device has the advantages of being capable of timely knowing that the lubricating oil body leaks out of the outer wall of the stirring shaft, achieving automatic leakage prevention operation on the lubricating oil body and preventing the lubricating oil body from contaminating materials, and solves the problems that oil leakage is difficult to know in time and automatic pollution prevention is difficult to achieve in time due to the fact that the lubricating oil body leaks and contaminates the materials.

Description

Technical Field

[0001] The present invention relates to the technical field of shaft seals, and more particularly to an integrated multi-stage radial soft-end-face agitator shaft seal. Background Art

[0002] At present, most of the agitator shaft seals, especially the top agitator shaft seals, generally adopt a packing structure or a mechanical seal structure. The packing structure has low cost and is easy to maintain, but the operating cycle is short. Since the seal is achieved through interference extrusion between the shaft and the cavity, and the swing of the agitator is relatively large, leakage will occur quickly. Although the mechanical seal can last for a relatively long time, it requires liquid lubrication and has requirements for the swing of the shaft, which cannot exceed 0.3mm. Once the mechanical seal leaks, the lubricating fluid in the seal will enter the agitator and contaminate the material in the agitator. For this reason, an integrated multi-stage radial soft end face agitator shaft seal is required.

[0003] Among the existing published technical documents, the Chinese patent announcement number CN104534096A discloses a sealing structure and a shaft sealing structure of a kitchen machine mixer and a manufacturing method thereof, wherein the shaft sealing structure mainly comprises a shaft and a sealing component cooperating with the shaft. It is provided that the sealing component is a perforated plate member, which is directly abutted against the shaft through the edge of the hole and is plastically deformed at least in this area. In addition, the present invention relates to a method for manufacturing a sealing structure. It is provided that a perforated plate member having a hole diameter is forced to move on the shaft, and the hole diameter is smaller than the shaft diameter in the area to be sealed, wherein the shaft has a smaller diameter than the area to be sealed at least on the insertion side. However, this technology still has the following problems when used.

[0004] During the shaft sealing process of the agitator, a certain amount of friction will be generated at the contact parts during long-term use. Over time, a certain gap will be generated at the rotating part of the seal, causing the lubricating oil to drip from the gap and then drip and penetrate along the shaft sealing part of the agitator, thereby contaminating the material. Therefore, it is difficult to detect oil leakage in time and to achieve automatic pollution prevention in time. This requires an integrated multi-stage radial soft end face agitator shaft seal. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an integrated multi-stage radial soft-end-face agitator shaft seal.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an integrated multi-stage radial soft-end-face agitator shaft seal, comprising a sealing chamber sleeve, two brackets and a groove ring, the two brackets are fixedly connected to the bottom end of the sealing chamber sleeve, the groove ring is fixed to the bottom end of the bracket, and a fitting detection mechanism is installed on the upper surface of the groove ring; the fitting detection mechanism comprises a sleeve disc fixedly installed on the upper surface of the groove ring, and the inner wall of the sleeve disc is rotatably connected to the stirring shaft, and a large toothed ring is rotatably connected to the outer wall of the groove ring, a swivel is fixedly connected to the upper surface of the large toothed ring, and a linkage bar is fixedly installed on one side of the outer wall of the swivel; the fitting detection mechanism also includes a sleeve frame, a leakage detector, a pinion and a rotating rod; the sleeve frame is fixed to the top of the linkage bar, the leakage detector is fixedly installed on the inner wall of the sleeve frame, the pinion is meshingly connected to the outer wall of the large toothed ring, and the rotating rod is fixed on the inner wall of the pinion; a sealing oil suction mechanism is installed on the bottom end of the inner wall of the groove ring; a flow guide lubrication component is installed on the upper surface of the sealing chamber sleeve.

[0007] Preferably, the inner wall of the rotating ring is rotatably connected to the outer wall of the groove ring, and the outer wall of the groove ring and the inner wall of the rotating ring are both smooth surfaces, and the cross-sectional shape of the rotating ring is a circular ring. The vertical cross-sectional shape of the linkage bar is concave, and the linkage bar and the sleeve frame are both made of stainless steel. A reduction motor is fixedly installed at the bottom end of the rotating rod, and a support plate is fixedly connected to one side of the reduction motor; a controller is fixedly installed on one side of the support plate, and the support plate is fixedly connected to the bottom end of the sleeve.

[0008] When this technical solution is in use, when there is an oil leakage problem between the shaft seal sleeve and the bearing sleeve, the lubricating oil is diverted and discharged along the outer wall of the stirring shaft. The reduction motor drives the rotating rod to rotate forward, and the rotating rod drives the pinion to rotate forward. After the pinion carries the large gear ring to rotate forward one circle, the reduction motor drives the rotating rod to reverse, and the rotating rod drives the pinion to reverse, and the pinion drives the large gear ring to reverse one circle. The rotating ring drives the linkage bar to rotate forward one circle and then reverse one circle. The sleeve frame drives the leakage detector to rotate forward one circle and then reverse one circle. The leakage detector collects and identifies images around the outer wall of the stirring shaft. When the leakage detector detects the presence of lubricating oil on the outer wall of the stirring shaft, the reduction motor is turned off through the controller.

[0009] Preferably, the sealing oil suction mechanism includes a guide sleeve fixedly mounted on the bottom end of the inner wall of the groove ring; the outer wall of the guide sleeve is fixedly connected to a sliding frame, and a baffle is fixedly mounted on one side of the sliding frame, the inner wall of the sliding frame is rotatably connected to a linkage screw, and two sleeve blocks are threadedly connected to the outer wall of the linkage screw; a stepper motor is fixedly mounted on one end of the sliding frame, and the stepper motor is used to drive the linkage screw to rotate, and a sliding column is fixedly connected to the lower surface of each sleeve block, and the two sliding columns are slidably connected to the sleeve disc, and the two sliding columns are A linkage block is fixedly installed on one side of the outer wall, an arc-shaped clamping plate is fixedly installed on one side of the linkage block, and a sealing strip is glued and fixed to the inner wall of the arc-shaped clamping plate; a slider is fixedly connected to one side of the sleeve block, and the slider is slidably connected to the slide frame, a clamping strip is fixedly installed on one side of the slider, and a sealing strip is glued to the inner wall of the clamping strip, both sleeve blocks are slidably connected to the slide frame, the two threads on the outer wall of the linkage screw are opposite and symmetrical, the cross-sectional shape of the sealing strip is an arc, and the sealing strip is made of rubber material.

[0010] Preferably, the sealed oil suction mechanism also includes a connecting pipe located on one side of the agitator shaft; the sealed oil suction mechanism also includes a suction ring pipe, multiple suction pipes, a negative pressure pump, a threaded pipe and a receiving tube; the suction ring pipe is fixedly connected to one side of the outer wall of the connecting pipe, and the multiple suction pipes are fixedly connected to the bottom end of the outer wall of the suction ring pipe, and the multiple suction pipes are arranged in a circular ring with equal spacing; the negative pressure pump is fixedly connected to the bottom end of the connecting pipe, and the threaded pipe is fixedly installed on the output end of the negative pressure pump, the receiving tube is threadedly connected to the outer wall of the threaded pipe, and the receiving tube is used to collect lubricating oil.

[0011] When the technical solution is in use, the stepper motor drives the linkage screw to rotate forward, the linkage screw rotates inside the slide frame, the two sleeves drive the two slides closer to each other, the two linkage blocks drive the two arc-shaped clamps closer to each other, so that the two sealing strips are squeezed on the outer wall of the stirring shaft, the two sleeves drive the two sliders closer to each other, the two clamping strips drive the two sealing strips closer to each other, so that the two sealing strips are squeezed on the outer wall of the stirring shaft, and the outer wall of the stirring shaft is squeezed and sealed. The lubricating oil body on the lower outer wall of the stirring shaft is inclined and diverted along the guide sleeve, and the lubricating oil body can be located at the bottom end of multiple suction pipes. The negative pressure pump generates suction in the multiple suction pipes, and the lubricating oil body enters the inside of the suction ring pipe along the multiple suction pipes, enters the inside of the threaded pipe through the connecting pipe, and is poured into the inside of the receiving tube by the threaded pipe. The receiving tube can collect the leaked lubricating oil body.

[0012] Preferably, the flow guide lubrication assembly includes an oil filling cup fixedly mounted on the upper surface of the sealing cavity sleeve, and the oil filling cup is communicated with the sealing cavity sleeve; a sealing ring is fixedly connected to the inner wall of the sealing cavity sleeve, and an elastic retaining ring is fixedly mounted on the bottom end of the sealing ring, a ball bearing is fixedly mounted on the bottom end of the elastic retaining ring, a rubber ring is fixedly mounted on the bottom end of the ball bearing, and a shaft sealing sleeve is fixedly connected to the bottom end of the rubber ring; the inner wall of the shaft sealing sleeve is rotatably connected to the bearing sleeve, and a plurality of sealing rubber rings are fixedly mounted on the inner wall of the bearing sleeve, and the plurality of sealing rubber rings and the bearing sleeve are rotatably connected to the stirring shaft; a transmission ring fixedly connected to the stirring shaft is provided on one side of the oil filling cup, and top screws are fixedly mounted on both sides of the transmission ring; a water cooling jacket is fixedly mounted on the outer wall of the sealing cavity sleeve, a cavity is opened on the inner wall of the water cooling jacket, a flow guide bucket fixedly connected to the sealing cavity sleeve is provided on one side of the bracket, the sealing ring and the elastic retaining ring are rotatably connected to the bearing sleeve, the ball bearing is rotatably connected to the bearing sleeve, and the elastic retaining ring is made of rubber material.

[0013] When the technical solution is in use, the stirring shaft can rotate, the sleeve frame can drive the sleeve disc to rotate the two top screws, the lubricating oil is poured into the oil filling cup, the lubricating oil enters the bearing sleeve, and the lubricating oil lubricates along the outer wall of the bearing sleeve, mainly lubricating the sealing ring part, then lubricating the elastic retaining ring part, and then lubricating the ball bearing part. The stirring shaft drives multiple sealing rubber rings to rotate under the action of friction, the sealing rubber ring causes the bearing sleeve to rotate, the bearing sleeve rotates on the inner wall of the ball bearing, and the bearing sleeve rotates on the inner wall of the rubber ring, so that the stirring shaft can realize integrated multi-stage radial soft end face shaft seal operation.

[0014] Technical effects and advantages of the present invention:

[0015] 1. The present invention uses a fitting detection mechanism to guide the lubricating oil down along the outer wall of the stirring shaft. The controller starts the reduction motor, which drives the rotating rod to rotate forward, and the rotating rod drives the small gear to rotate forward. After the small gear carries the large gear ring to rotate forward one circle, the reduction motor drives the rotating rod to rotate reversely. The large gear ring can drive the rotating ring to rotate forward one circle and then reverse one circle. The frame drives the leakage detector to rotate forward one circle and then reverse one circle. When the leakage detector detects that there is lubricating oil on the outer wall of the stirring shaft, the reduction motor is turned off through the controller, so that it can be known in time that the lubricating oil has leaked from the outer wall of the stirring shaft, thereby realizing leakage prevention operation for the lubricating oil and preventing the lubricating oil from contaminating the material.

[0016] 2. The present invention utilizes a sealed oil suction mechanism. A stepper motor drives the linkage screw to rotate forward. The linkage screw rotates inside the slide frame. The linkage screw drives the two sleeve blocks to approach each other under the action of the thread transmission force. The two slide columns respectively drive the two linkage blocks to approach each other. The two sealing strips respectively drive the two sealing strips to approach each other, thereby realizing a sealing operation on the outer wall of the stirring shaft below the sleeve. The two sleeve blocks respectively drive the two sliding blocks to approach each other. The two clamping strips respectively drive the two sealing strips to approach each other, so that the two sealing strips are squeezed on the outer wall of the stirring shaft. The lubricating oil body is guided to the bottom end of the inner wall of the sleeve along the guide sleeve. The lubricating oil body can be located at the bottom end of multiple suction pipes and poured into the inside of the receiving tube by the threaded pipe. In this way, the receiving tube can collect the leaked lubricating oil body and can promptly know the oil leakage, thereby realizing double sealing and leak prevention for the stirring shaft to avoid contamination of the material.

[0017] 3. The present invention uses a flow-guiding lubrication component. The sleeve frame can drive the sleeve disc to rotate the two top screws. At the same time, the transmission ring rotates stably on the outer wall of the bearing sleeve. The lubricating oil enters the interior of the bearing sleeve. The lubricating oil lubricates the outer wall of the bearing sleeve, the elastic retaining ring, the ball bearing, the rubber ring and the shaft seal sleeve. The sealing rubber ring rotates the bearing sleeve. The bearing sleeve rotates on the sealing ring and the inner wall of the elastic retaining ring. The bearing sleeve rotates on the inner wall of the shaft seal sleeve at the same time, so that the stirring shaft can realize multi-stage radial soft end face shaft sealing operation, and the leaked lubricating oil is guided downward to be discharged, and the leaked lubricating oil is collected and detected.

[0018] The interaction of the above multiple functions firstly guides the leaked lubricating oil downward, collects and detects the leaked lubricating oil, and then promptly detects the lubricating oil leaking from the outer wall of the agitator shaft, and finally causes the two sealing strips to drive the two sealing strips closer to each other, and at the same time the two sealing strips are pressed against the outer wall of the agitator shaft to realize a double-stage sealing operation. In summary, the lubricating oil leaking from the outer wall of the agitator shaft can be detected in time, thereby realizing automatic leakage prevention operation for the lubricating oil and preventing the lubricating oil from contaminating the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main plane structure of the integrated multi-stage radial soft-end surface agitator shaft seal of the present invention.

[0020] Figure 2 It is a schematic diagram of the partial structure of the connection between the groove ring and the sleeve disc of the present invention when viewed from above.

[0021] Figure 3 It is a schematic diagram of the partial structure of the connection between the leakage detector and the casing of the present invention when viewed from above.

[0022] Figure 4 This is a schematic diagram of the partial structure of the stirring shaft of the present invention when it is cut off from the front.

[0023] Figure 5It is a schematic diagram of the local structure of the vertical section of the connection between the sleeve disc and the guide sleeve of the present invention.

[0024] Figure 6 For the present invention Figure 5 Enlarged structural diagram at A in the middle.

[0025] Figure 7 It is a schematic diagram of the local structure of the vertical section of the sealed oil suction mechanism of the present invention.

[0026] Figure 8 It is a schematic diagram of the local structure of the connection between the connecting pipe and the negative pressure pump of the present invention.

[0027] Fig. 9 It is a schematic diagram of the local structure of the vertical section of the connection between the guide bucket and the sealing chamber sleeve of the present invention.

[0028] The accompanying drawings are marked as follows: 1, sealing chamber sleeve; 2, bracket; 3, groove ring; 4, sleeve disc; 5, stirring shaft; 6, large gear ring; 7, rotating ring; 8, linkage bar; 9, sleeve frame; 10, leakage detector; 11, small gear; 12, rotating rod; 13, reduction motor; 14, support plate; 15, controller; 16, guide sleeve; 17, sliding frame; 18, baffle; 19, linkage screw; 20, stepping motor; 21, sleeve block; 22, sliding column; 23, linkage block; 24, arc splint; 25, sealing strip; 26, slider; 27, clamping strip; 28, sealing strip; 29, connecting pipe; 30, suction ring pipe; 31, suction pipe; 32, negative pressure pump; 33, threaded pipe; 34, receiving tube; 35, oil filling cup; 36, sealing ring; 37, elastic retaining ring; 38, ball bearing; 39, rubber ring; 40, shaft sealing sleeve; 41, sealing rubber ring; 42, transmission ring; 43, top screw; 44, bearing sleeve; 45, water cooling sleeve; 46, guide bucket. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] As attached Figure 1-9 The integrated multi-stage radial soft end face agitator shaft seal shown in the figure is provided with a fitting detection mechanism, a sealing oil suction mechanism, and a flow guide lubrication component. The settings of each mechanism and component can timely know the leakage of lubricating oil from the outer wall of the agitator shaft 5, thereby realizing automatic leakage prevention operation of the lubricating oil body and avoiding the lubricating oil body from contaminating the material. The specific structural settings of each mechanism and component are as follows.

[0031] In this technical solution, as shown in the attached Figure 1-3 As shown, the two brackets 2 are fixedly connected to the bottom end of the sealing chamber sleeve 1, the groove ring 3 is fixed to the bottom end of the bracket 2, and a fitting detection mechanism is installed on the upper surface of the groove ring 3; the fitting detection mechanism includes a sleeve disc 4 fixedly installed on the upper surface of the groove ring 3, and the inner wall of the sleeve disc 4 is rotatably connected to the stirring shaft 5, and a large toothed ring 6 is rotatably connected to the outer wall of the groove ring 3, and a swivel 7 is fixedly connected to the upper surface of the large toothed ring 6, and a linkage bar 8 is fixedly installed on one side of the outer wall of the swivel 7; the fitting detection mechanism also includes a sleeve frame 9, a leakage detector 10, a pinion 11 and a rotating rod 12; the sleeve frame 9 is fixed to the top of the linkage bar 8, the leakage detector 10 is fixedly installed on the inner wall of the sleeve frame 9, the pinion 11 is meshingly connected to the outer wall of the large toothed ring 6, and the rotating rod 12 is fixed on the inner wall of the pinion 11; a sealing oil suction mechanism is installed at the bottom end of the inner wall of the groove ring 3; a flow guide lubrication component is installed on the upper surface of the sealing chamber sleeve 1.

[0032] In this technical solution, as shown in the attached Figure 2 As shown, a reduction motor 13 is fixedly installed at the bottom end of the rotating rod 12, and a support plate 14 is fixedly connected to one side of the reduction motor 13; a controller 15 is fixedly installed on one side of the support plate 14, and the support plate 14 is fixedly connected to the bottom end of the sleeve 4, so that the support plate 14 can provide stable support for the reduction motor 13, and then the controller 15 starts the reduction motor 13, and the reduction motor 13 drives the rotating rod 12 to rotate forward.

[0033] In this technical solution, as shown in the attached Figure 4-8 As shown, the sealed oil suction mechanism includes a guide sleeve 16 fixedly mounted on the bottom end of the inner wall of the groove ring 3; the outer wall of the guide sleeve 16 is fixedly connected to a slide frame 17, and a baffle 18 is fixedly mounted on one side of the slide frame 17, the inner wall of the slide frame 17 is rotatably connected to a linkage screw 19, and two sleeve blocks 21 are threadedly connected to the outer wall of the linkage screw 19; a stepper motor 20 is fixedly mounted on one end of the slide frame 17, and the stepper motor 20 is used to drive the linkage screw 19 to rotate, and a slide column 22 is fixedly connected to the lower surface of each sleeve block 21, and the two slide columns 22 are slidably connected to the sleeve disc 4, and a linkage block 23 is fixedly mounted on one side of the outer wall of the two slide columns 22, and an arc-shaped clamping plate 24 is fixedly mounted on one side of the linkage block 23, and a sealing strip 25 is bonded and fixed to the inner wall of the arc-shaped clamping plate 24.

[0034] A slider 26 is fixedly connected to one side of the sleeve block 21, and the slider 26 is slidably connected to the slide frame 17. A clamping strip 27 is fixedly installed on one side of the slider 26, and a sealing strip 28 is bonded to the inner wall of the clamping strip 27. Both sleeve blocks 21 are slidably connected to the slide frame 17, and the outer wall of the linkage screw 19 has two threads that are opposite and symmetrical. The cross-section of the sealing strip 25 is an arc shape, and the sealing strip 25 is made of rubber material. The sealed oil suction mechanism also includes a connecting pipe 29 located on one side of the stirring shaft 5; the sealed oil suction mechanism also includes a suction ring pipe 30, multiple suction pipes 31, a negative pressure pump 32, a threaded pipe 33 and a receiving tube 34; the suction ring pipe 30 is fixedly connected to one side of the outer wall of the connecting pipe 29, and the multiple suction pipes 31 are all fixedly connected to the bottom end of the outer wall of the suction ring pipe 30, and the multiple suction pipes 31 are arranged in a circular ring with equal spacing; the negative pressure pump 32 is fixedly connected to the bottom end of the connecting pipe 29, and the threaded pipe 33 is fixedly installed on the output end of the negative pressure pump 32, and the receiving tube 34 is threadedly connected to the outer wall of the threaded pipe 33, and the receiving tube 34 is used to collect lubricating oil.

[0035] In this technical solution, as shown in the attached Fig. 9 As shown, the flow guide lubrication assembly includes an oil filling cup 35 fixedly mounted on the upper surface of the sealing chamber sleeve 1, and the oil filling cup 35 is connected to the sealing chamber sleeve 1; the inner wall of the sealing chamber sleeve 1 is fixedly connected with a sealing ring 36, and the bottom end of the sealing ring 36 is fixedly mounted with an elastic retaining ring 37, the bottom end of the elastic retaining ring 37 is fixedly mounted with a ball bearing 38, the bottom end of the ball bearing 38 is fixedly mounted with a rubber ring 39, and the bottom end of the rubber ring 39 is fixedly connected with a shaft sealing sleeve 40; the inner wall of the shaft sealing sleeve 40 is rotatably connected to the inner wall of the shaft sealing sleeve 40 There is a bearing sleeve 44, and the inner wall of the bearing sleeve 44 is fixedly installed with multiple sealing rubber rings 41, and the multiple sealing rubber rings 41 and the bearing sleeve 44 are rotatably connected to the stirring shaft 5; a transmission ring 42 fixedly connected to the stirring shaft 5 is provided on one side of the oil filling cup 35, and top screws 43 are fixedly installed on both sides of the transmission ring 42; a water cooling sleeve 45 is fixedly installed on the outer wall of the sealing chamber sleeve 1, and a cavity is opened on the inner wall of the water cooling sleeve 45, and a guide bucket 46 fixedly connected to the sealing chamber sleeve 1 is provided on one side of the bracket 2. The sealing ring 36 and the elastic retaining ring 37 are both rotatably connected to the bearing sleeve 44, and the ball bearing 38 is rotatably connected to the bearing sleeve 44, and the elastic retaining ring 37 is made of rubber material.

[0036] The method of using the integrated multi-stage radial soft end surface agitator shaft seal of the present invention is as follows:

[0037] First, when the present invention performs multi-stage radial soft end face flow guidance lubrication, the sealing chamber sleeve 1 is first fixed to the base by bolts, and the stirring shaft 5 is allowed to rotate under the driving force of the stirring motor, and the sleeve frame 9 can drive the sleeve disc 4 to rotate the two top screws 43. At the same time, the transmission ring 42 rotates stably on the outer wall of the bearing sleeve 44, and the lubricating oil body is poured into the oil filling cup 35, and the lubricating oil body enters the interior of the bearing sleeve 44, and the lubricating oil body lubricates along the outer wall of the bearing sleeve 44.

[0038] The sealing ring 36 is mainly lubricated, and then the elastic retaining ring 37 is lubricated, and then the ball bearing 38 is lubricated, and at the same time, the rubber ring 39 and the shaft seal sleeve 40 are lubricated, so that the stirring shaft 5 drives multiple sealing rubber rings 41 to rotate under the action of friction, and the sealing rubber ring 41 rotates the bearing sleeve 44, and the bearing sleeve 44 rotates on the inner wall of the sealing ring 36 and the elastic retaining ring 37. At the same time, the bearing sleeve 44 rotates on the inner wall of the ball bearing 38, the bearing sleeve 44 rotates on the inner wall of the rubber ring 39, and the bearing sleeve 44 rotates on the inner wall of the shaft seal sleeve 40, so that the stirring shaft 5 can realize the integrated multi-stage radial soft end face shaft seal operation, and finally, the cooling water is poured into the water cooling sleeve 45, so that the outside of the sealing chamber sleeve 1 can be cooled and cooled.

[0039] Secondly, when the present invention performs fitting detection, when there is an oil leakage problem between the shaft sealing sleeve 40 and the bearing sleeve 44, the lubricating oil drips along the shaft sealing sleeve 40 and is guided to the bottom end of the bearing sleeve 44. The bottom end of the bearing sleeve 44 is located at the stirring shaft 5. In this way, more lubricating oil can flow down the outer wall of the stirring shaft 5. At the same time, the lubricating oil dripping vertically between the shaft sealing sleeve 40 and the bearing sleeve 44 can flow on the inner wall of the guide bucket 46 and continue to be guided along the guide bucket 46 to the outer wall of the stirring shaft 5. In this way, the lubricating oil is guided down along the outer wall of the stirring shaft 5.

[0040] At the same time, the sealing chamber sleeve 1 supports the two brackets 2, the bracket 2 supports the groove ring 3, the groove ring 3 supports the sleeve disc 4, and the support plate 14 supports the controller 15, and the support plate 14 provides stable support for the reduction motor 13. Then the controller 15 starts the reduction motor 13, the reduction motor 13 drives the rotating rod 12 to rotate forward, the rotating rod 12 drives the small gear 11 to rotate forward, the small gear 11 carries the large gear ring 6 to rotate forward one circle, and then the reduction motor 13 drives the rotating rod 12 to reverse, the rotating rod 12 drives the small gear 11 to reverse, the small gear 11 drives the large gear ring 6 to reverse one circle, so that the large gear ring 6 can drive the rotating ring 7 to rotate forward one circle and then reverse one circle, the rotating ring 7 drives the linkage bar 8 to rotate forward one circle and then reverse one circle, the linkage bar 8 drives the sleeve frame 9 to rotate forward one circle and then reverse one circle, and the sleeve frame 9 drives the leakage detection The instrument 10 rotates forward one circle and then reverses one circle to improve the detection effect and avoid poor detection effect of strip leakage. The leakage detector 10 can use a photoelectric sensor such as the photoelectric leakage sensor YEC-SMOT around the outer wall of the stirring shaft 5 for leakage detection, or use an infrared sensor to detect the temperature change caused by the lubricating oil after the leakage, or use an oil leakage rope such as the Changan Wenying A-FLC1000 oil leakage alarm device to absorb the oil while detecting. The application of the above sensors is a common technology in the process of detecting oil leakage, so it will not be repeated here. When the leakage detector 10 detects the presence of lubricating oil on the outer wall of the stirring shaft 5, the reduction motor 13 is turned off through the controller 15, and the controller 15 immediately starts the stepper motor 20.

[0041] Then, when the present invention performs sealing, the stepping motor 20 drives the linkage screw 19 to rotate forward, and the linkage screw 19 rotates inside the slide frame 17. At the same time, the linkage screw 19 drives the two sleeve blocks 21 to approach each other under the action of the thread transmission force, and the two sleeve blocks 21 respectively drive the two sliding columns 22 to approach each other, and the two sliding columns 22 respectively drive the two linkage blocks 23 to approach each other, and the two linkage blocks 23 respectively drive the two arc-shaped clamping plates 24 to approach each other, and the two sealing strips 25 respectively drive the two sealing strips 25 to approach each other, so that the two sealing strips 25 are squeezed on the outer wall of the stirring shaft 5, and at the same time, the two sealing strips 25 contact and squeeze each other, so that the outer wall of the stirring shaft 5 below the sleeve disc 4 is sealed, and some dispersed lubricating oil will contact the baffle 18, thereby realizing the diversion operation through the baffle 18.

[0042] At the same time, the two sleeve blocks 21 respectively drive the two sliders 26 to approach each other, the two sliders 26 respectively drive the two clamping strips 27 to approach each other, and the two clamping strips 27 respectively drive the two sealing strips 28 to approach each other, so that the two sealing strips 28 are squeezed on the outer wall of the stirring shaft 5, and at the same time, the two sealing strips 28 squeeze and seal each other, thus realizing the squeezing and sealing operation on the outer wall of the stirring shaft 5. At the same time, the controller 15 turns off the stirring motor and stops the driving of the stirring shaft 5, so as to realize double sealing and leakage prevention for the stirring shaft 5.

[0043] Finally, when the present invention is absorbing oil, the lubricating oil body on the lower outer wall of the stirring shaft 5 is inclinedly guided along the guide sleeve 16, and the lubricating oil body is guided along the guide sleeve 16 to the bottom end of the inner wall of the sleeve 4, and the lubricating oil body can be located at the bottom end of multiple suction pipes 31. At the same time, the controller 15 starts the negative pressure pump 32, and the negative pressure pump 32 generates suction force for the multiple suction pipes 31, and the multiple suction pipes 31 perform suction operation on the lubricating oil body at the bottom end of the inner wall of the sleeve 4. The lubricating oil body enters the interior of the suction ring pipe 30 along the multiple suction pipes 31, and is poured into the connecting pipe 29 from the suction ring pipe 30, and enters the interior of the threaded pipe 33 through the connecting pipe 29, and is poured into the interior of the receiving tube 34 from the threaded pipe 33, so that the receiving tube 34 can collect the leaked lubricating oil body, so that the lubricating oil body leaked from the inner wall of the sleeve 4 is prevented from overflowing and leaking to cause pollution, and the worn sealing structure is replaced in time after the rotation stops.

[0044] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated multi-stage radial soft-end face agitator shaft seal, comprising a sealing chamber sleeve (1), two brackets (2) and a groove ring (3), characterized in that: The two brackets (2) are both fixedly connected to the bottom end of the sealing cavity sleeve (1), the groove ring (3) is fixed to the bottom end of the bracket (2), and a fitting detection mechanism is installed on the upper surface of the groove ring (3); The fitting detection mechanism comprises a sleeve disc (4) fixedly mounted on the upper surface of the groove ring (3), and the inner wall of the sleeve disc (4) is rotatably connected to a stirring shaft (5), and the outer wall of the groove ring (3) is rotatably connected to a large toothed ring (6), the upper surface of the large toothed ring (6) is fixedly connected to a rotating ring (7), and a linkage bar (8) is fixedly mounted on one side of the outer wall of the rotating ring (7); The fitting detection mechanism also includes a sleeve frame (9), a leakage detector (10), a pinion gear (11) and a rotating rod (12); The sleeve frame (9) is fixed on the top of the linkage bar (8), the leakage detector (10) is fixedly mounted on the inner wall of the sleeve frame (9), the pinion gear (11) is meshingly connected to the outer wall of the large gear ring (6), and the rotating rod (12) is fixedly located on the inner wall of the pinion gear (11); A sealing oil suction mechanism is installed at the bottom end of the inner wall of the groove ring (3) to collect the leaked lubricating oil; A flow guide lubrication component is installed on the upper surface of the sealing cavity sleeve (1) for replenishing lubricating oil.

2. The integrated multi-stage radial soft end face agitator shaft seal according to claim 1 is characterized in that: The inner wall of the rotating ring (7) is rotatably connected to the outer wall of the groove ring (3), and the outer wall of the groove ring (3) and the inner wall of the rotating ring (7) are both smooth surfaces. The cross-sectional shape of the rotating ring (7) is a circular ring.

3. The integrated multi-stage radial soft end face agitator shaft seal according to claim 1 is characterized in that: The vertical cross-section of the linkage bar (8) is concave, and the linkage bar (8) and the sleeve frame (9) are both made of stainless steel.

4. The integrated multi-stage radial soft end face agitator shaft seal according to claim 1, characterized in that: A reduction motor (13) is fixedly mounted on the bottom end of the rotating rod (12), and a support plate (14) is fixedly connected to one side of the reduction motor (13); A controller (15) is fixedly mounted on one side of the support plate (14), and the support plate (14) is fixedly connected to the bottom end of the sleeve disc (4).

5. The integrated multi-stage radial soft-end-face agitator shaft seal according to claim 1 is characterized in that: The sealing oil suction mechanism comprises a guide sleeve (16) fixedly mounted on the bottom end of the inner wall of the groove ring (3); The outer wall of the guide sleeve (16) is fixedly connected to a sliding frame (17), and a baffle (18) is fixedly installed on one side of the sliding frame (17); the inner wall of the sliding frame (17) is rotatably connected to a linkage screw (19), and two sleeve blocks (21) are threadedly connected to the outer wall of the linkage screw (19); A stepper motor (20) is fixedly mounted on one end of the slide frame (17), and the stepper motor (20) is used to drive the linkage screw (19) to rotate. A slide column (22) is fixedly connected to the lower surface of each sleeve block (21), and the two slide columns (22) are slidably connected to the sleeve disc (4). A linkage block (23) is fixedly mounted on one side of the outer wall of the two slide columns (22), and an arc-shaped clamping plate (24) is fixedly mounted on one side of the linkage block (23), and a sealing strip (25) is bonded and fixed to the inner wall of the arc-shaped clamping plate (24); A slider (26) is fixedly connected to one side of the sleeve block (21), and the slider (26) is slidably connected to the slide frame (17). A clamping strip (27) is fixedly installed on one side of the slider (26), and a sealing strip (28) is bonded to the inner wall of the clamping strip (27).

6. The integrated multi-stage radial soft-end-face agitator shaft seal according to claim 5 is characterized in that: The two sleeve blocks (21) are both slidably connected to the slide frame (17), and the two threads on the outer wall of the linkage screw rod (19) are opposite and symmetrically arranged.

7. The integrated multi-stage radial soft-end-face agitator shaft seal according to claim 5, characterized in that: The cross-section of the sealing strip (25) is in the shape of an arc, and the sealing strip (25) is made of rubber material.

8. The integrated multi-stage radial soft-end-face agitator shaft seal according to claim 5, characterized in that: The sealed oil suction mechanism further comprises a connecting pipe (29) located on one side of the stirring shaft (5); The sealed oil suction mechanism also includes a suction ring pipe (30), a plurality of suction pipes (31), a negative pressure pump (32), a threaded pipe (33) and a receiving tube (34); The suction ring pipe (30) is fixedly connected to one side of the outer wall of the connecting pipe (29), and the plurality of suction pipes (31) are fixedly connected to the bottom end of the outer wall of the suction ring pipe (30), and the plurality of suction pipes (31) are arranged in a circular shape with equal spacing; The negative pressure pump (32) is fixedly connected to the bottom end of the connecting pipe (29), and the threaded pipe (33) is fixedly installed on the output end of the negative pressure pump (32). The receiving tube (34) is threadedly connected to the outer wall of the threaded pipe (33), and the receiving tube (34) is used to collect lubricating oil.

9. The integrated multi-stage radial soft-end-face agitator shaft seal according to claim 1, characterized in that: The flow-guiding lubrication assembly comprises an oil filling cup (35) fixedly mounted on the upper surface of the sealing chamber sleeve (1), and the oil filling cup (35) is in communication with the sealing chamber sleeve (1); A sealing ring (36) is fixedly connected to the inner wall of the sealing cavity sleeve (1), and an elastic retaining ring (37) is fixedly installed at the bottom end of the sealing ring (36), a ball bearing (38) is fixedly installed at the bottom end of the elastic retaining ring (37), a rubber ring (39) is fixedly installed at the bottom end of the ball bearing (38), and a shaft sealing sleeve (40) is fixedly connected to the bottom end of the rubber ring (39); The inner wall of the shaft seal sleeve (40) is rotatably connected to a bearing sleeve (44), and a plurality of sealing rubber rings (41) are fixedly installed on the inner wall of the bearing sleeve (44), and the plurality of sealing rubber rings (41) and the bearing sleeve (44) are rotatably connected to the stirring shaft (5); A transmission ring (42) fixedly connected to the stirring shaft (5) is provided on one side of the oil filling cup (35), and top screws (43) are fixedly installed on both sides of the transmission ring (42); A water cooling jacket (45) is fixedly mounted on the outer wall of the sealing chamber jacket (1), a cavity is provided on the inner wall of the water cooling jacket (45), and a flow guide hopper (46) fixedly connected to the sealing chamber jacket (1) is provided on one side of the bracket (2).

10. The integrated multi-stage radial soft-end-face agitator shaft seal according to claim 9, characterized in that: The sealing ring (36) and the elastic retaining ring (37) are both rotatably connected to the bearing sleeve (44), the ball bearing (38) is rotatably connected to the bearing sleeve (44), and the elastic retaining ring (37) is made of rubber material.

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