Multi-channel mechanical sealing component

Abstract

The utility model provides a multi-channel mechanical sealing component, which comprises a shell and a core shaft, the core shaft penetrates through the shell and is rotatably connected with the shell, a plurality of mutually matched medium passages are arranged on the shell and the core shaft, a plurality of mechanical seals used for sealing are arranged between the shell and the core shaft, and the core shaft is connected with the shell. A plurality of separation rings are installed on the mandrel, one end of the shell is in threaded connection with a limiting mechanism, and one end of the mandrel is fixedly connected with a limiting block located on the inner side of the limiting mechanism. According to the utility model, through the arrangement of the separating ring and the mechanical seal, the mechanical seal can block and seal the medium passages during use, compared with a sealing ring, the integral service life is longer, frequent disassembly and replacement are not needed, and the problem of leakage among the medium passages can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to rotary joint technical field, specifically, relate to a kind of multi-channel mechanical seal component. BACKGROUND

[0002] Multi-channel rotary joint is a kind of equipment for transmitting multiple media simultaneously, widely used in industrial field. They are usually used in occasions requiring transmission of fluid, gas or power between fixed components and rotating components. Multi-channel rotary joint can support independent transmission of multiple media, such as hydraulic oil, water, air, steam, etc., and even can transmit different kinds of media simultaneously without interfering with each other. The existing multi-channel rotary joint adopts sealing ring to realize the isolation between each passage during use, which has shorter service life and needs to be replaced frequently. Moreover, the existing multi-channel rotary joint is troublesome to disassemble, and it takes a long time to replace the sealing ring each time.

[0003] In view of the problems that the existing multi-channel rotary joint adopts sealing ring to realize the isolation between each passage, which has shorter service life and needs to be replaced frequently, and it is troublesome to disassemble, and it takes a long time to replace the sealing ring each time, the utility model provides a new solution. SUMMARY

[0004] The utility model aims at solving the problems that the existing multi-channel rotary joint adopts sealing ring to realize the isolation between each passage, which has shorter service life and needs to be replaced frequently, and it is troublesome to disassemble, and it takes a long time to replace the sealing ring each time, and provides a kind of multi-channel mechanical seal component.

[0005] In order to achieve the above-mentioned purpose of the invention, the utility model provides the following technical scheme:

[0006] Multi-channel mechanical seal component to improve the above-mentioned problems.

[0007] The utility model is specifically as follows:

[0008] It comprises a shell and a mandrel, the mandrel penetrates the shell, and is rotationally connected with the shell, a plurality of mutually matched medium passages are arranged on the shell and the mandrel, a plurality of mechanical seals for sealing are arranged between the shell and the mandrel, a plurality of separation rings are arranged on the mandrel, one end of the shell is threadedly connected with a limiting mechanism, and one end of the mandrel is fixedly connected with a limiting block located on the inner side of the limiting mechanism.

[0009] As the preferred technical scheme of the utility model, the medium passage includes a plurality of annular medium flow grooves opened on the inner wall of the shell and a plurality of medium flow channels opened on the mandrel and the partition ring, and the plurality of medium flow channels and the plurality of medium flow grooves are matched with each other.

[0010] As the preferred technical scheme of the utility model, the outer wall of the shell is provided with an inlet and outlet pipe matched with the medium flow grooves, and the inlet and outlet pipe is internally provided with a filtering mechanism.

[0011] As the preferred technical scheme of the utility model, the filtering mechanism includes a connecting cylinder movably installed in the inlet and outlet pipe, one end of the connecting cylinder is fixedly connected with a clamping block, one end of the inlet and outlet pipe is provided with a groove matched with the clamping block, and the other end of the connecting cylinder is fixedly connected with a hemispherical filter cover.

[0012] As the preferred technical scheme of the utility model, the both ends of the shell are respectively provided with a first bearing and a second bearing matched with the mandrel, and the diameter of the limiting block is greater than the inner diameter of the shell.

[0013] As the preferred technical scheme of the utility model, the limiting mechanism includes an end cover threadedly connected with the outer wall of the shell, the inner wall top of the end cover is provided with a third bearing matched with the limiting block, and the top of the end cover is provided with a groove with a polygonal cross section.

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] In the scheme of the utility model,

[0016] 1. The multi-channel mechanical sealing member, by setting up the partition ring and the mechanical seal, the mechanical seal can block and seal between each medium passage in use, compared with the sealing ring, the overall service life is longer, and it is not necessary to frequently disassemble and replace, and the problem of leakage between each medium passage can be effectively avoided.

[0017] 2. The multi-channel mechanical sealing member, by setting up the limiting mechanism and the limiting block, the limiting block can limit the mandrel rotatably installed in the shell in cooperation with the limiting mechanism to prevent the mandrel from being pulled out of the shell, when disassembling, the limiting mechanism threadedly connected with the outer wall of the shell can be twisted off, and the mandrel can be pulled out of the shell, the whole disassembling process is simple and convenient, and the time spent on disassembling can be effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model provides the whole structure schematic diagram of multi-channel mechanical sealing member;

[0019] Figure 2The utility model provides a multi -pass mechanical seal member's internal structure schematic drawing is provided;

[0020] Figure 3 The utility model provides a multi -pass mechanical seal member's explosion map is provided;

[0021] Figure 4 The utility model provides a multi -pass mechanical seal member's shell structure schematic drawing is provided;

[0022] Figure 5 The utility model provides a multi -pass mechanical seal member Figure 3 The structure of A of the utility model provides a multi -pass mechanical seal member is enlarged drawing;

[0023] Figure 6 The utility model provides a multi -pass mechanical seal member's end cover structure schematic drawing.

[0024] Indicated in the drawing:

[0025] 1, shell;2, mandrel;3, limiting mechanism;4, inlet and outlet pipe;5, medium flow channel;6, first bearing;7, second bearing;8, filtering mechanism;9, mechanical seal;10, limiting block;11, separation ring;12, medium flow channel;301, end cover;302, third bearing;303, recess;801, clamping block;802, connecting barrel;803, filter cover. Specific implementation

[0026] In order to make the utility model embodiment's purpose, technical scheme and advantage more clear, below, to the technical scheme in the utility model embodiment of the present application, clear, complete description is carried out.The described embodiment is the part embodiment of the utility model, rather than all embodiments.

[0027] Therefore, the following detailed description of the embodiment of the utility model is not intended to limit the scope of the claimed utility model, but only represents some embodiments of the utility model.Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the utility model.

[0028] It should be noted that, in the case of no conflict, the embodiments and the features and technical solutions in the embodiments in the utility model can be combined with each other.

[0029] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0030] In the description of the utility model, it is necessary to explain that the position or position relation indicated by the terms "upper", "lower" and the like is based on the position or position relation shown in the drawing, or is the position or position relation of the utility model product when it is usually placed, or is the position or position relation that is usually understood by the person skilled in the art, these terms are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the utility model.In addition, the terms "first", "second" and the like are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0031] As Figures 1-6 shown, the embodiment proposes a multi-channel mechanical sealing component, comprising a shell 1 and a mandrel 2, the mandrel 2 penetrates the shell 1 and is rotationally connected with the shell 1, a plurality of mutually matched medium passages are arranged on the shell 1 and the mandrel 2, a plurality of mechanical seals 9 for sealing are arranged between the shell 1 and the mandrel 2, a plurality of partition rings 11 are arranged on the mandrel 2, the partition ring 11 can be connected with the mandrel 2 through a pin or a screw rod, the mechanical seal comprises a dynamic ring, a static ring and a spring between the two, by arranging the partition ring 11 and the mechanical seal 9, the mechanical seal 9 can block and seal between each medium passage during use, compared with the sealing ring, the overall service life is longer, frequent disassembly and replacement is not required, and the problem of leakage between each medium passage can be effectively avoided; one end of the shell 1 is threadedly connected with a limiting mechanism 3, one end of the mandrel 2 is fixedly connected with a limiting block 10 located on the inner side of the limiting mechanism 3, by arranging the limiting mechanism 3 and the limiting block 10, the limiting block 10 can cooperate with the limiting mechanism 3 to limit the mandrel 2 rotationally arranged in the shell 1 to prevent the mandrel 2 from being pulled out from the inside of the shell 1, when disassembly is required, the limiting mechanism 3 threadedly connected with the outer wall of the shell 1 can be screwed off, and the mandrel 2 can be pulled out from the inside of the shell 1, the whole disassembly process is simple and convenient, and the time spent on disassembly can be effectively reduced.

[0032] As Figures 1-4 shown, as a preferred embodiment, on the basis of the above-mentioned mode, further, the medium passage comprises a plurality of annular medium flow grooves 12 opened on the inner wall of the shell 1 and a plurality of medium flow channels 5 opened on the mandrel 2 and the partition ring 11, the plurality of medium flow channels 5 and the plurality of medium flow grooves 12 are matched with each other.It should be noted that the flow of the medium can be realized by arranging the medium flow channel 5 and the medium flow groove 12.

[0033] As Figure 3 and Figure 4As shown, in a preferred embodiment, based on the above method, an inlet / outlet pipe 4 is further installed through the outer wall of the outer casing 1, which cooperates with the medium flow channel 12, and a filter mechanism 8 is installed inside the inlet / outlet pipe 4. It should be noted that the inlet / outlet pipe 4 facilitates the use of the medium flow channel 12 and also facilitates the installation of the filter mechanism 8.

[0034] like Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, the filter mechanism 8 further includes a connecting cylinder 802 movably installed inside the inlet / outlet pipe 4. One end of the connecting cylinder 802 is fixedly connected to a locking block 801, and one end of the inlet / outlet pipe 4 has a groove that cooperates with the locking block 801. The other end of the connecting cylinder 802 is fixedly connected to a hemispherical filter cover 803. It should be noted that when the connecting cylinder 802 is inserted into the inlet / outlet pipe 4 during use, the locking block 801 will lock in the groove at one end of the inlet / outlet pipe 4 to limit the connecting cylinder 802. When the medium passes through the filter cover 803, the filter cover 803 will filter the impurities inside it, preventing the impurities in the medium from clogging the inlet / outlet pipe 4, the medium flow channel 5, and the medium flow groove 12.

[0035] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, a first bearing 6 and a second bearing 7 that cooperate with the spindle 2 are respectively installed at both ends of the outer shell 1, and the diameter of the limiting block 10 is larger than the inner diameter of the outer shell 1. It should be noted that, in use, the setting of the first bearing 6 and the second bearing 7 makes the rotation between the outer shell 1 and the spindle 2 smoother, and the setting of the limiting block 10 can cooperate with the limiting mechanism 3 to limit the spindle 2 and prevent the spindle 2 from coming out of the interior of the outer shell 1.

[0036] like Figure 1 , Figure 3 and Figure 6 As shown, in a preferred embodiment, based on the above method, the limiting mechanism 3 further includes an end cap 301 threadedly connected to the outer wall of the housing 1. A third bearing 302, which cooperates with the limiting block 10, is installed on the top of the inner wall of the end cap 301. A polygonal groove 303 is formed on the top of the end cap 301. It should be noted that during use, the end cap 301 is fitted onto one end of the housing 1, and then the end cap 301 is rotated to screw it onto the housing 1. The groove 303 facilitates the use with a wrench. The third bearing 302 is a planar bearing, which can be placed between the top of the inner wall of the end cap 301 and the top of the limiting block 10 during use, reducing friction between the limiting block 10 and the end cap 301.

[0037] Specifically, the working principle of the multi-channel mechanical sealing member is as follows: when disassembly is needed, a wrench corresponding to the cross section of the groove 303 is inserted into the wrench, the end cover 301 is rotated through the wrench, the end cover 301 is detached from the shell 1, then the mandrel 2 is pulled out from the inside of the shell 1, and the disassembly between the shell 1 and the mandrel 2 is completed. In the use process, the filtering mechanism 8 inside the inlet and outlet pipe 4 filters the medium inside the medium flow channel 5 and the medium flow channel 12 through the inlet and outlet pipe 4, so as to prevent the impurities in the medium from blocking the medium flow channel 5 and the medium flow channel 12.

[0038] The above examples are only used to illustrate the utility model and are not limited to the technical solutions described in the utility model. Although the utility model has been described in detail with reference to the above-described various embodiments, the utility model is not limited to the above-described specific embodiments, and any modification or equivalent replacement of the utility model; all technical solutions and improvements without departing from the spirit and scope of the invention are covered in the scope of the claims of the utility model.

Claims

1. A multi-channel mechanical seal member comprising a housing (1) and a core shaft (2), characterized in that, The core shaft (2) penetrates the shell (1) and is rotationally connected with the shell (1), the shell (1) and the core shaft (2) are provided with a plurality of mutually matched medium passages, a plurality of mechanical seals (9) for sealing are mounted between the shell (1) and the core shaft (2), a plurality of separation rings (11) are mounted on the core shaft (2), one end of the shell (1) is threadedly connected with a limiting mechanism (3), and one end of the core shaft (2) is fixedly connected with a limiting block (10) located on the inner side of the limiting mechanism (3).

2. A multi-channel mechanical sealing member according to claim 1, wherein The medium passage comprises a plurality of annular medium flow grooves (12) formed on the inner wall of the shell (1) and a plurality of medium flow channels (5) formed on the core shaft (2) and the separation ring (11), and the plurality of medium flow channels (5) and the plurality of medium flow grooves (12) are matched with each other.

3. A multi-channel mechanical sealing member according to claim 2, wherein The outer wall of the shell (1) is penetrated and mounted with an inlet and outlet pipe (4) matched with the medium flow groove (12), and the inside of the inlet and outlet pipe (4) is mounted with a filtering mechanism (8).

4. A multi-channel mechanical sealing member according to claim 3, wherein The filtering mechanism (8) comprises a connecting barrel (802) movably mounted in the inside of the inlet and outlet pipe (4), one end of the connecting barrel (802) is fixedly connected with a clamping block (801), one end of the inlet and outlet pipe (4) is formed with a groove matched with the clamping block (801), and the other end of the connecting barrel (802) is fixedly connected with a hemispherical filtering cover (803).

5. A multi-channel mechanical sealing member according to claim 1, wherein Both ends of the shell (1) are respectively mounted with a first bearing (6) and a second bearing (7) matched with the core shaft (2), and the diameter of the limiting block (10) is greater than the inner diameter of the shell (1).

6. A multi-channel mechanical sealing member according to claim 1, wherein The limiting mechanism (3) comprises an end cover (301) threadedly connected with the outer wall of the shell (1), the inner wall top of the end cover (301) is mounted with a third bearing (302) matched with the limiting block (10), and the top of the end cover (301) is formed with a recess (303) with a polygonal cross section.

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