A sealed connection device and a silicone oil stirring kettle

Abstract

The utility model discloses a kind of sealing connecting device and silicone oil stirring kettle, sealing connecting device includes: mounting bracket, is equipped with the central hole for stirring rod to pass through, the outer periphery of central hole is equipped with first annular groove, the opening of first annular groove is upward;Static ring, is installed in first annular groove;Fixed ring, is fixed in stirring rod, and is set in first annular groove upper side;Dynamic ring component, is sleeved in stirring rod;The bottom end of dynamic ring component extends to first annular groove to be pasted with static ring, top end is abutted with fixed ring, dynamic ring component is sealed and connected with stirring rod;Stirring rod axial rotation drives dynamic ring component to rotate relative to static ring, first annular groove is used to store liquid medium.The sealing connecting device of the application can facilitate the observation of sealing effect and prevent debris from falling into the kettle body.

Description

Technical Field

[0001] This utility model relates to the technical field of silicone oil production equipment, and in particular to a sealing connection device and a silicone oil mixing tank. Background Technology

[0002] The silicone oil mixing tank, a key component in silicone oil production, mainly consists of a stirring rod and a tank body. The stirring rod extends into the tank body to mix the raw materials. The stirring rod and tank body need to maintain a seal. However, when the stirring rod rotates relative to the tank body, the sealing structure rotates relative to the stirring rod, leading to wear on the stirring rod or the sealing structure. This affects the airtightness and generates debris that falls into the tank body, impacting the quality of the silicone oil product. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a sealing connection device that facilitates observation of the sealing effect and prevents debris from falling into the vessel.

[0004] This utility model also proposes a silicone oil stirring vessel with the above-mentioned sealing connection device.

[0005] The sealing connection device according to the first aspect of the present invention includes: The mounting bracket has a central hole through which the stirring rod passes, and a first annular groove is provided on the outer periphery of the central hole, with the opening of the first annular groove facing upward; A stationary ring is installed inside the first ring groove; A fixing ring is fixed to the stirring rod and positioned above the first ring groove; A moving ring assembly is fitted onto a stirring rod; the bottom end of the moving ring assembly extends into the first ring groove to be sealed and connected to the stationary ring, and the top end is connected to the fixed ring; the moving ring assembly is sealed and connected to the stirring rod. The axial rotation of the stirring rod causes the moving ring assembly to rotate relative to the stationary ring, and the first ring groove is used to store the liquid medium.

[0006] The sealing connection device according to the embodiments of the present utility model has at least the following beneficial effects: By placing the stationary ring in the first annular groove of the mounting bracket, and extending the bottom of the rotating ring assembly into the first annular groove to be in contact with the stationary ring, the debris generated by the relative rotation of the rotating ring assembly and the stationary ring can fall into the first annular groove. The first annular groove is separated from the central hole, thereby preventing debris from falling into the reactor and affecting the product quality of the silicone oil. The first annular groove can be used to store liquid media, which makes it easy to observe the sealing performance between the rotating ring assembly and the stationary ring by whether the liquid media is bubbling, thus avoiding the impact of poor airtightness of the sealing connection device on the quality of the silicone oil.

[0007] According to some embodiments of the present invention, the dynamic ring assembly includes a shaft seal structure and a connecting structure. The shaft seal structure is sealed to the stirring rod, and the connecting structure is sleeved on the shaft seal structure and connected to the fixed ring.

[0008] According to some embodiments of the present invention, the outer peripheral wall of the shaft seal structure is provided with a second annular groove, and the connecting structure is provided with a protrusion, which is installed in the annular groove.

[0009] According to some embodiments of the present invention, the shaft seal structure includes a first structural member, a second structural member, and a buffer member. The buffer member is used to connect the first structural member and the second structural member. The first structural member is sealed to the stirring rod, and the second structural member is disposed in the first annular groove.

[0010] According to some embodiments of the present invention, the shaft seal structure further includes a third structural member, which is disposed between the second structural member and the connecting structure; The third structural member is provided with an upward-facing third annular groove, and an elastic element is installed in the third annular groove, with the top end of the elastic element abutting against the fixed ring.

[0011] According to some embodiments of the present invention, a locking member is installed in the first annular groove. The locking member is connected to the mounting bracket and abuts against the stationary ring to axially limit the stationary ring.

[0012] According to some embodiments of the present invention, the first annular groove includes a first sidewall and a second sidewall disposed opposite to each other, the first sidewall being close to the stirring rod, and the second sidewall being provided with a rinsing port penetrating through the second sidewall.

[0013] According to some embodiments of the present invention, the outer diameter of the first annular groove is larger than the outer diameter of the moving ring assembly.

[0014] According to some embodiments of the present invention, the mounting bracket further includes a cooling cavity, which is disposed below the first annular groove.

[0015] According to a second aspect embodiment of the present invention, a silicone oil mixing vessel includes a vessel body and a stirring rod, wherein the aforementioned sealing connection device is used to seal the connection between the stirring rod and the vessel body. Since the silicone oil mixing vessel includes the aforementioned sealing connection device, it possesses at least all the beneficial effects of such a device, which will not be elaborated upon here.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the installation of the sealing connection device according to the first aspect of this application; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0018] Icon labels: Mounting bracket 100, center hole 110, first annular groove 120, boss 121, first side wall 122, second side wall 123, flushing port 1231, locking member 130, cooling chamber 140, water inlet 141, water outlet 142; 200 static rings; 300 retaining ring; The components include: a moving ring assembly 400, a shaft seal structure 410, a first structural component 411, a second ring groove 4111, a second structural component 412, a third structural component 413, a third ring groove 4131, a buffer component 414, an elastic component 415, a connecting structure 420, and a protrusion 421. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, etc., indicating the directional or positional relationship, are based on the directional or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Reference Figures 1 to 3 The sealing connection device of the first aspect of this utility model is applicable to a silicone oil mixing tank. The silicone oil mixing tank includes a tank body and a stirring rod. The stirring rod is inserted into the tank body to stir and mix the silicone oil raw material in the tank body. The rod body of the stirring rod passes through the tank body. The sealing connection device of this application is used to seal the connection between the stirring rod and the tank body.

[0024] Reference Figure 1 As shown, the sealing connection device of this application includes a mounting frame 100, a moving ring assembly 400 and a stationary ring 200. The mounting frame 100 is provided with a central hole 110 for the stirring rod to pass through, and the mounting frame 100 is mounted on the vessel body. The moving ring assembly 400 is connected to the stirring rod, and the stationary ring 200 is mounted on the mounting frame 100. The stationary ring 200 and the moving ring cooperate to seal the connection between the stirring rod and the vessel body.

[0025] Specifically, refer to Figure 1 As shown, the sealing connection device also includes a fixing ring 300, which is installed on the stirring rod. The axial rotation of the stirring rod drives the fixing ring 300 to rotate synchronously. A first annular groove 120 is provided on the outer periphery of the central hole 110 of the mounting bracket 100. The first annular groove 120 is preferably coaxially arranged with the central hole 110, and its opening faces upwards. The fixing ring 300 is positioned above the first annular groove 120. A moving ring assembly 400 is sleeved on the stirring rod, with its bottom end extending into the first annular groove 120 for a sealed connection with the stationary ring 200. The top end of the moving ring assembly 400 is connected to the fixing ring 300 by fasteners, and the inner wall of the moving ring assembly 400 is sealed to the stirring rod. The fasteners can be bolts or similar structures. The inner wall of the moving ring assembly 400 is sealed to the stirring rod through a sealing ring or similar structure. The fixing ring 300 and the stirring rod can be connected by interference fit, key, bolt fasteners, welding, or other methods. The fixing ring 300 cannot rotate relative to the stirring ring or move axially.

[0026] Since the top of the moving ring assembly 400 is connected to the fixed ring 300 via fasteners, the synchronous rotation of the fixed ring 300 with the stirring rod will cause the moving ring assembly 400 to rotate around the stirring rod, thereby causing the moving ring assembly 400 and the stationary ring 200 to rotate relative to each other. This relative rotation between the moving ring assembly 400 and the stationary ring 200 will cause wear, but because the stationary ring 200 is installed in the first ring groove 120 and the first ring groove 120 is not connected to the center hole 110, the wear debris generated by the relative rotation between the moving ring assembly 400 and the stationary ring 200 will fall into the first ring groove 120 and will not fall into the reactor through the center hole 110, thus preventing debris from falling into the reactor and affecting the quality of the silicone oil. Since both the moving ring assembly 400 and the fixed ring 300 rotate with the stirring rod, there is no relative movement between the stirring rod and the fixed ring 300, nor between the moving ring assembly 400 and the stirring rod, and therefore no wear debris is generated, greatly improving the quality of the silicone oil.

[0027] In the embodiments of this application, the first annular groove 120 is used to store liquid media, such as silicone oil, which is not prone to reacting with or corroding the equipment. Typically, the internal pressure of the vessel is greater than atmospheric pressure. Therefore, when the seal between the bottom of the rotating ring assembly 400 and the stationary ring 200 is damaged, bubbles will form in the liquid media stored in the first annular groove 120. Operators can easily determine whether the seal between the rotating ring assembly 400 and the stationary ring 200 is damaged by these bubbles, allowing for timely replacement of either the rotating ring assembly 400 or the stationary ring 200, thus preventing the poor airtightness of the sealing connection from affecting the quality of the silicone oil. The liquid media stored in the first annular groove 120 can also dissipate heat from the rotating ring assembly 400 and the stationary ring 200, reducing relative friction and preventing damage to the equipment caused by the high temperatures generated by their relative rotation.

[0028] It is conceivable that, in order to facilitate the injection of liquid medium into the first annular tank 120 and to observe whether bubbles are generated in the liquid medium, it is preferable to use... Figure 1 As shown, the outer diameter of the first annular groove 120 is set to be greater than the outer diameter of the moving ring assembly 400.

[0029] To avoid excessive debris accumulation in the first annular groove 120, refer to Figure 1 As shown, the first annular groove 120 in this embodiment includes a first sidewall 122 and a second sidewall 123 disposed opposite to each other. The first sidewall 122 is disposed close to the stirring rod, and the second sidewall 123 is disposed away from the stirring rod. The first annular groove 120 is formed between the first sidewall 122 and the second sidewall 123. (Refer to...) Figure 3As shown, the second sidewall 123 is provided with a flushing port 1231 that penetrates the second sidewall 123. The flushing port 1231 is preferably located at the bottom of the second sidewall 123. The flushing port 1231 is sealed by a sealing plug when the equipment is operating normally. When it is necessary to clean the debris in the second annular groove 4111, the sealing plug is removed, and the debris in the second annular groove 4111 is carried out by the outflow of the liquid medium in the second annular groove 4111.

[0030] It should be noted that when the equipment is operating normally, the amount of liquid medium injected into the first annular groove 120 should not be too much, especially not exceeding the vertical height of the first sidewall 122. Otherwise, the liquid medium exceeding the first sidewall 122 will enter the central hole 110 and then enter the reactor body through the central hole 110, affecting the purity of the silicone oil. The amount of liquid medium injected into the first annular groove 120 should be enough to exceed the connection between the stationary ring 200 and the moving ring assembly 400. The specific amount injected is not limited in this embodiment.

[0031] In an embodiment of this application, the dynamic ring assembly 400 includes a shaft seal structure 410 and a connecting structure 420. The shaft seal structure 410 is sealed to the stirring rod, and the connecting structure 420 is sleeved on the shaft seal structure 410 and connected to the fixed ring 300. Specifically, refer to... Figure 2 As shown, the shaft seal structure 410 includes a first structural member 411, a second structural member 412, and a buffer member 414. The buffer member 414 is used to connect the first structural member 411 and the second structural member 412. The buffer member 414 can be a structure such as a spring. The buffer member 414 is used to apply sufficient and stable pressure to the second structural member 412 to ensure that the bottom end of the second structural member 412 is always sealed to the stationary ring 200.

[0032] In the embodiments of this application, a sealing ring is installed on the inner sidewall of the first structural member 411, and the inner sidewall of the first structural member 411 is sealed to the stirring rod; a second annular groove 4111 is provided on the outer peripheral wall of the first structural member 411, and the opening direction of the second annular groove 4111 is the radial direction of the first structural member 411; the connecting structure 420 is provided with a protrusion 421, which is installed in the annular groove to realize the connection between the connecting structure 420 and the shaft seal structure 410.

[0033] Reference Figure 2As shown, the connecting structure 420 is connected to the fixing ring 300 by bolts or other fasteners; the bottom end of the second structural member 412 extends into the first ring groove 120, and the bottom end of the second structural member 412 is provided with an extension, which is sealed to the top end of the stationary ring 200. The extension can be connected to the second structural member 412 by welding, fasteners, or other means, or the extension can be integrated with the second structural member 412; the extension can be made of the same material as the second structural member 412, or the extension can be made of a wear-resistant material while the second structural member 412 is made of ordinary metal.

[0034] In embodiments of this application, the shaft seal structure 410 further includes a third structural member 413, which is disposed between the second structural member 412 and the connecting structure 420; specifically, refer to... Figure 2 As shown, the third structural member 413 is sleeved around the first structural member 411, the buffer member 414, and the second structural member 412 to protect the buffer member 414. The third structural member 413 has an upward-opening third annular groove 4131, in which an elastic member 415 is installed. The top of the elastic member 415 abuts against the fixed ring 300. Specifically, the elastic member 415 can also be a spring or similar structure. The axial extension direction of the elastic member 415 is the same as that of the buffer member 414, and the elastic member 415 and the buffer member 414 have the same function: to apply downward pressure to the second structural member 412 to ensure that the bottom end of the second structural member 412 always maintains a good sealing connection with the stationary ring 200. By having two radially spaced buffer members 414 and elastic members 415 simultaneously apply pressure to the second structural member 412, it is possible to ensure that the pressure applied to the stationary ring 200 at all positions of the second structural member 412 is balanced, thereby improving the sealing effect.

[0035] It is conceivable that the third structural component 413 can be connected with the second structural component 412 to form an integral structure.

[0036] In the embodiments of this application, reference is made to Figure 3 As shown, a boss 121 is installed at the bottom of the first annular groove 120, and a stationary ring 200 is installed on the boss 121. A flushing port 1231 passes through the boss 121. The boss 121 has a stepped surface, and the stationary ring 200 is installed on the stepped surface. The stationary ring 200 is connected to a locking member 130 by bolts or other fasteners. The locking member 130 is connected to the boss 121 and abuts against the stationary ring 200 to press the stationary ring 200 against the stepped surface, thereby achieving axial positioning of the stationary ring 200.

[0037] In the embodiments of this application, reference is made to Figure 1As shown, the mounting bracket 100 also includes a cooling chamber 140, which is located below the first annular groove 120. The cooling chamber 140 is used to store cooling media such as water to cool the stirring rod. The cooling chamber 140 is provided with an inlet 141 and an outlet 142 to facilitate the replacement of the medium in the cooling chamber 140.

[0038] The silicone oil mixing vessel of the second aspect of this utility model includes a vessel body and a stirring rod, wherein the aforementioned sealing connection device is used to seal the connection between the stirring rod and the vessel body. Since the silicone oil mixing vessel includes the aforementioned sealing connection device, it possesses at least all the beneficial effects of such a device, which will not be elaborated upon here.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine the different embodiments or examples described in this specification.

[0040] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A sealed connection device, characterized in that include: The mounting bracket has a central hole through which the stirring rod passes, and a first annular groove is provided on the outer periphery of the central hole, with the opening of the first annular groove facing upward; A stationary ring is installed inside the first ring groove; A fixing ring is fixed to the stirring rod and positioned above the first ring groove; A moving ring assembly is fitted onto a stirring rod; the bottom end of the moving ring assembly extends into the first ring groove to be sealed and connected to the stationary ring, and the top end is connected to the fixed ring; the moving ring assembly is sealed and connected to the stirring rod. The axial rotation of the stirring rod causes the moving ring assembly to rotate relative to the stationary ring, and the first ring groove is used to store the liquid medium.

2. The sealed connection device of claim 1, wherein: The moving ring assembly includes a shaft seal structure and a connecting structure. The shaft seal structure is sealed to the stirring rod, and the connecting structure is sleeved on the shaft seal structure and connected to the fixed ring.

3. The sealed connection device of claim 2, wherein: The outer peripheral wall of the shaft seal structure is provided with a second annular groove, and the connecting structure is provided with a protrusion, which is installed in the annular groove.

4. The sealed connection device of claim 2, wherein: The shaft seal structure includes a first structural component, a second structural component, and a buffer component. The buffer component is used to connect the first structural component and the second structural component. The first structural component is sealed to the stirring rod, and the second structural component is disposed in the first annular groove.

5. The sealed connection device of claim 4, wherein: The shaft seal structure further includes a third structural component, which is disposed between the second structural component and the connecting structure; The third structural member is provided with an upward-facing third annular groove, and an elastic element is installed in the third annular groove, with the top end of the elastic element abutting against the fixed ring.

6. The sealed connection device of claim 1, wherein: A locking element is installed in the first annular groove. The locking element is connected to the mounting bracket and abuts against the stationary ring to axially limit the stationary ring.

7. The sealed connection device of claim 1, wherein: The first annular groove includes a first sidewall and a second sidewall disposed opposite to each other, the first sidewall being close to the stirring rod, and the second sidewall having a flushing port penetrating through the second sidewall.

8. The sealed connection device of claim 1, wherein: The outer diameter of the first annular groove is larger than the outer diameter of the moving ring assembly.

9. The sealed connection device of claim 1, wherein: The mounting bracket also includes a cooling chamber, which is located below the first annular groove.

10. A silicone oil stirred tank characterized by: The vessel includes a vessel body and a stirring rod, and the sealing connection device according to any one of claims 1 to 9 is used to seal the connection between the stirring rod and the vessel body.

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