Integrated stirrer mechanical seal structure

Abstract

The utility model provides an integrated stirrer mechanical seal structure, the outer wall of the casing is provided with a compensation structure, the compensation structure is connected with a static backing ring, the utility model relates to the technical field of stirrers, an elastic component of the compensation structure can be replaced, a spring is ensured to keep a good elastic state for a long time, and the mechanical seal structure is simple in structure and convenient to operate. And elastic fatigue and performance reduction caused by long-time use of a traditional spring are avoided, so that the long-term stability and safety of the sealing device are remarkably improved. The compensation structure is located on the outer wall of the machine shell, the replacement process is convenient and fast, the machine shell does not need to be disassembled, the maintenance operation is greatly simplified, the maintenance difficulty is lowered, the downtime is shortened, meanwhile, the displacement sensor is arranged in the static backing ring, real-time monitoring of the relative displacement between the dynamic backing ring and the static backing ring is achieved, and the working efficiency is improved. A worker can accurately master any small change of the sealing performance, and the prevention capacity for the medium leakage risk is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mixer, especially to an integrated mixer seal structure. BACKGROUND

[0002] The mixer seal device is a key component in the mixing equipment for preventing material leakage. Its main function is to form a reliable sealing interface between the rotating shaft and the housing, ensuring that the medium does not leak out during the mixing process, and preventing external impurities from entering the equipment. The existing sealing device usually uses dynamic gasket, static gasket, sealing ring and spring components to improve sealing performance. The dynamic gasket is tightly attached to the rotating shaft and rotates with the shaft, while the static gasket is fixed on the housing, and the two form a preliminary sealing barrier through the sealing ring. The spring applies continuous pressure to the sealing element to maintain the tight contact of the sealing surface and prevent medium leakage.

[0003] Although the existing sealing device can meet the sealing requirements to some extent, in actual application, it is found that the spring has fatigue problems due to long-term cyclic loading. Over time, the elasticity of the spring gradually decreases, resulting in a decrease in the pressure applied to the sealing surface, which affects the sealing effect. This decrease in elasticity not only leads to medium leakage, but also accelerates the wear of the sealing element, reducing the overall service life of the sealing device. SUMMARY

[0004] The purpose of the utility model is to provide an integrated mixer seal structure that can solve the problem of decreasing elasticity of the spring over time, which leads to a decrease in the pressure applied to the sealing surface, affecting the sealing effect. This decrease in elasticity not only leads to medium leakage, but also accelerates the wear of the sealing element, reducing the overall service life of the sealing device.

[0005] The utility model provides an integrated mixer seal structure, the mixer includes a housing, a rotating shaft, a dynamic gasket, a first sealing ring, a static gasket and an elastic filler, the rotating shaft and the housing are connected through a bearing, the dynamic gasket is fixedly arranged on the rotating shaft, and the first sealing ring is arranged between the rotating shaft and the dynamic gasket, the static gasket is arranged outside the dynamic gasket, and the elastic filler is arranged between the static gasket and the housing, the outer wall of the housing is provided with a compensation structure, and the compensation structure is connected with the static gasket.

[0006] The compensation structure includes a support box, a sliding plate, an extrusion rod, two connecting seats, and an elastic component. The support box is fixedly mounted on the outer wall of the housing. Two sliding grooves are formed at the top and bottom of the support box. The sliding plate is slidably connected to the two sliding grooves. One end of the extrusion rod is fixedly mounted on the side of the sliding plate near the housing and is movably connected to the housing. The other end of the extrusion rod is connected to the elastic filler. The two connecting seats are respectively fixedly mounted on the side of the sliding plate away from the housing and the side of the support box away from the housing. Each of the two connecting seats has an installation groove. An elastic component is connected between the two connecting seats.

[0007] Preferably, the elastic component includes a spring, two support plates, and two connecting blocks. The two support plates are respectively fixedly disposed at both ends of the spring, and the two connecting blocks are respectively fixedly disposed on the two support plates, with the connecting blocks corresponding to the mounting grooves of the connecting seats.

[0008] Preferably, the mounting groove of the connector is provided with a plurality of arc-shaped slots evenly distributed, and the connector block is provided with a plurality of arc-shaped rubber balls that match the arc-shaped slots.

[0009] Preferably, a second sealing ring is provided on the sealing surface of the static washer near the dynamic washer.

[0010] Preferably, the static pad ring has a placement groove, and a displacement sensor is installed in the placement groove, with the probe of the displacement sensor corresponding to the dynamic pad ring.

[0011] Preferably, the extrusion rod is slidably connected to the housing via a linear bearing.

[0012] Preferably, the support box has an opening on its front side, and a movable door is movably connected to the opening. This utility model provides an integrated mixer mechanical seal structure through improvement.

[0013] Compared with the prior art, the compensation structure has the following improvements and advantages: the elastic assembly of the compensation structure can be replaced, the spring can keep a good elastic state for a long time, elastic fatigue and performance decline of the traditional spring caused by long-time use are avoided, and therefore the long-term stability and safety of the sealing device are significantly improved. Moreover, the compensation structure is located on the outer wall of the shell, the replacement process is convenient and fast, the shell does not need to be disassembled, the maintenance operation is greatly simplified, the maintenance difficulty and downtime are reduced, the displacement sensor is arranged in the static gasket ring, real-time monitoring of the relative displacement between the dynamic gasket ring and the static gasket ring is realized, the working personnel can accurately master any slight change of the sealing performance, the prevention capability of the medium leakage risk is greatly improved, once the displacement sensor detects that the relative displacement exceeds the preset range, a signal is fed back to the operator, and the instant response mechanism ensures that action can be taken quickly when the sealing performance has a potential problem. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0015] Figure 1 It is a front view structural schematic diagram of the present application;

[0016] Figure 2 It is a front view structural schematic diagram of the present application; Figure 1 It is an A position enlarged structural schematic diagram of the present application;

[0017] Figure 3 It is a B position enlarged structural schematic diagram of the present application; Figure 1

[0018] Figure 4 It is a front view structural schematic diagram of the compensation structure of the present application in a state of disassembling the elastic assembly;

[0019] Figure 5 It is a front view structural schematic diagram of the elastic assembly of the present application;

[0020] Figure 6 It is a top view structural schematic diagram of the support box of the present application.

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] ​1, mixer; 11, machine shell; 12, rotating shaft; 13, dynamic gasket; 14, first sealing ring; 15, static gasket; 16, elastic packing; 2, compensation structure; 21, support box; 22, sliding groove; 23, sliding plate; 24, extrusion rod; 25, connecting seat; 26, elastic assembly; 26-1, spring; 26-2, support plate; 26-3, connecting block; 26-4, rubber clamping ball; 3, second sealing ring; 4, displacement sensor. DETAILED DESCRIPTION

[0023] The technical solutions of the present application will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] In the description of the present application, it should be understood that the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality of" means two or more, unless otherwise explicitly specified. In addition, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Please refer to Figures 1-6The utility model provides technical scheme: A kind of integrated mixer machine seal structure, mixer 1 including casing 11, rotating shaft 12, dynamic gasket ring 13, first sealing ring 14, static gasket ring 15 and elastic packing 16, rotating shaft 12 is connected with casing 11 by bearing, so it can keep sealed in rotation process, prevent medium leakage, rotating shaft 12 is fixedly provided with dynamic gasket ring 13, and rotating shaft 12 is provided with first sealing ring 14 between dynamic gasket ring 13, static gasket ring 15 is set to dynamic gasket ring 13 outside, and static gasket ring 15 is provided with elastic packing 16 between dynamic gasket ring 13, static gasket ring 15 is located the outside of dynamic gasket ring 13, it is filled with elastic packing 16 between dynamic gasket ring 13, which further enhances the sealing effect, while allowing certain axial and radial movement, to adapt to the vibration and temperature variation of shaft, dynamic gasket ring 13, first sealing ring 14, static gasket ring 15 and elastic packing 16 are all mixer 1 in sealing of the prior art in the field, so do not make too much introduction here, the outer wall of casing 11 is provided with compensation structure 2, compensation structure 2 is connected with static gasket ring 15, compensation structure 2 is to further optimize sealing performance, it is connected with static gasket ring 15, can be automatically adjusted according to the wear condition of sealing surface during the operation of mixer 1, to ensure that mixer 1 can maintain good sealing state in the entire service life, prevent medium leakage.

[0027] Compensation structure 2 includes support box 21, sliding plate 23, extrusion rod 24, two connecting seats 25 and elastic assembly 26, support box 21 is fixedly set on the outer wall of casing 11, two sliding grooves 22 are formed in the top and bottom of support box 21, sliding plate 23 is connected with the two sliding grooves, and sliding plate 23 can move horizontally in support box 21, one end of extrusion rod 24 is fixedly set on the side of sliding plate 23 close to casing 11, and extrusion rod 24 is movably connected with casing 11, the other end of extrusion rod 24 is connected with elastic packing 16, and extrusion rod 24 can transmit the pressure of elastic packing 16 to static gasket ring 15, so as to maintain the sealing effect, two connecting seats 25 are fixedly set on the side of sliding plate 23 away from casing 11 and the side of support box 21 away from casing 11 respectively, and mounting grooves are formed in the two connecting seats 25, connecting seat 25 and the mounting grooves in it are used for mounting elastic assembly 26, elastic assembly 26 is connected between the two connecting seats 25, and provides necessary elastic force when extrusion rod 24 needs to adjust position, so as to ensure that extrusion rod 24 can continuously apply uniform pressure to elastic packing 16, so as to maintain the stability and reliability of sealing.

[0028] Specifically, the elastic assembly 26 includes a spring 26-1, two support plates 26-2 fixedly arranged at both ends of the spring 26-1, and two connecting blocks 26-3 fixedly arranged on the two support plates 26-2, and the connecting blocks 26-3 correspond to the mounting slots of the connecting seat 25, and the connecting blocks 26-3 are used to mount the spring 26-1.

[0029] Specifically, a plurality of arc-shaped clamping grooves are uniformly arranged in the mounting slots of the connecting seat 25, and a plurality of arc-shaped rubber clamping balls 26-4 matched with the arc-shaped clamping grooves are arranged on the connecting blocks 26-3. When the connecting blocks 26-3 are mounted in the mounting slots of the connecting seat 25, the rubber clamping balls 26-4 can enter the clamping grooves due to the elasticity and deformation ability of the rubber material, thereby further improving the stability.

[0030] Specifically, the static gasket ring 15 is provided with a second sealing ring 3 close to the sealing surface of the dynamic gasket ring 13, and the shape and size of the second sealing ring 3 match the sealing surface where it is located, so as to ensure that it can be tightly attached during installation.

[0031] Specifically, a placement groove is arranged in the static gasket ring 15, and a displacement sensor 4 is arranged in the placement groove, and the probe of the displacement sensor 4 corresponds to the dynamic gasket ring 13. The displacement sensor 4 is used to detect the relative displacement between the dynamic gasket ring 13 and the static gasket ring 15, so as to monitor the sealing state. The displacement sensor 4 can convert the detected displacement data into electrical signals, and these signals can be transmitted to the control system, so as to issue an alarm or automatically adjust in time when the sealing performance decreases, thereby ensuring the continuous and stable operation of the mixer 1.

[0032] Specifically, the extrusion rod 24 is connected with the shell 11 through a linear bearing, which ensures the smoothness and smoothness of the extrusion rod 24 during movement.

[0033] Specifically, an opening is arranged on the front side of the support box 21, and a movable door is movably connected to the opening, which facilitates the replacement of the elastic assembly 26 by the staff.

[0034] Working principle: During the operation of the mixer 1, the bearing connection between the rotating shaft 12 and the shell 11 ensures the stable rotation of the rotating shaft 12, and the dynamic gasket ring 13 and the first sealing ring 14 cooperate to maintain the sealing state between the rotating shaft 12 and the shell 11, thereby preventing medium leakage.

[0035] The static gasket ring 15 is located outside the dynamic gasket ring 13 and is filled with elastic filler 16 between the static gasket ring 15 and the shell 11, which further enhances the sealing effect and allows certain axial and radial movement to adapt to the vibration and temperature change of the shaft.

[0036] The compensation structure 2 can automatically adjust according to the wear condition of the sealing surface through the cooperation of the support box 21, the sliding plate 23, the extrusion rod 24, the connecting seat 25 and the elastic assembly 26, so as to ensure that the mixer 1 can maintain a good sealing state during the entire use cycle. The spring 26-1 as part of the elastic assembly 26 provides the necessary elastic force to ensure that the extrusion rod 24 can continuously exert uniform pressure on the elastic filler 16, thereby maintaining the stability and reliability of the seal.

[0037] The displacement sensor 4 monitors the relative displacement between the dynamic gasket ring 13 and the static gasket ring 15 in real time, converts the data into an electrical signal and transmits it to the control system, so as to issue an alarm or automatically adjust when the sealing performance decreases.

[0038] When the staff receives the signal to replace the elastic assembly 26, first, the staff opens the movable door at the opening on the front side of the support box 21 to expose the internal elastic assembly 26. Then, the staff presses the spring 26-1 inward, causing the spring 26-1 to elastically contract, thereby causing the connecting block 26-3 to disengage from the mounting groove of the connecting seat 25, creating enough space to remove the spring 26-1. Once the connecting block 26-3 is disengaged, the entire spring 26-1 assembly can be removed from the inside of the support box 21. Subsequently, the staff can install a new spring 26-1 assembly, compress the support plates 26-2 at both ends of the new spring 26-1 inward, causing the spring 26-1 to elastically contract. Then, align the connecting block 26-3 on the spring 26-1 with the mounting groove of the connecting seat 25, and then release the spring 26-1, causing the connecting block 26-3 to enter the mounting groove of the connecting seat 25. Due to the elasticity and deformation ability of the rubber material, the rubber ball 26-4 can enter the corresponding card slot, further improving the stability. Finally, close the movable door to complete the replacement process of the elastic assembly 26. The entire replacement process does not require disassembly of the shell 11, simplifying the maintenance operation and improving the maintenance efficiency.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for part or all of the technical features. These modifications or substitutions do not cause the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An integrated mixer seal structure, the mixer (1) comprising a casing (11), a rotating shaft (12), a dynamic gasket (13), a first sealing ring (14), a static gasket (15) and an elastic filler (16), the rotating shaft (12) being connected with the casing (11) through a bearing, the dynamic gasket (13) being fixedly arranged on the rotating shaft (12), and the first sealing ring (14) being arranged between the rotating shaft (12) and the dynamic gasket (13), the static gasket (15) being arranged outside the dynamic gasket (13), and the elastic filler (16) being arranged between the static gasket (15) and the casing (11), characterized in that, The outer wall of the shell (11) is provided with a compensation structure (2) connected with a static gasket (15); The compensation structure (2) comprises a support box (21), a sliding plate (23), an extrusion rod (24), two connecting seats (25) and an elastic assembly (26), the support box (21) is fixedly arranged on the outer wall of the shell (11), two sliding grooves (22) are formed in the top and bottom of the support box (21), the sliding plate (23) is slidably connected with the two sliding grooves, one end of the extrusion rod (24) is fixedly arranged on the side of the sliding plate (23) close to the shell (11), and the extrusion rod (24) is movably connected with the shell (11), the other end of the extrusion rod (24) is connected with the elastic filler (16), the two connecting seats (25) are fixedly arranged on the side of the sliding plate (23) away from the shell (11) and the side of the support box (21) away from the shell (11) respectively, mounting grooves are formed in the two connecting seats (25), and the elastic assembly (26) is connected between the two connecting seats (25).

2. The integrated blender closure of claim 1, wherein, The elastic assembly (26) comprises a spring (26-1), two support plates (26-2) and two connecting blocks (26-3), the two support plates (26-2) are fixedly arranged at the two ends of the spring (26-1), and the two connecting blocks (26-3) are fixedly arranged on the two support plates (26-2).

3. An integrated blender lid structure as defined in claim 2, wherein, A plurality of arc-shaped clamping grooves are uniformly formed in the mounting grooves of the connecting seats (25), and a plurality of arc-shaped rubber clamping balls (26-4) matched with the arc-shaped clamping grooves are arranged on the connecting blocks (26-3).

4. The integrated blender closure of claim 1, wherein, The static gasket (15) is provided with a second sealing ring (3) close to the sealing surface of the dynamic gasket (13).

5. The integrated blender closure of claim 1, wherein, A placing groove is formed in the static gasket (15), a displacement sensor (4) is arranged in the placing groove, and a probe of the displacement sensor (4) corresponds to the dynamic gasket (13).

6. The integrated blender closure of claim 1, wherein, The extrusion rod (24) and the shell (11) are slidably connected through a linear bearing.

7. The integrated blender closure of claim 1, wherein, An opening is formed in the front side of the support box (21), and a movable door is movably connected to the opening.

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