Machine frame integrated sealing device

Abstract

The utility model provides a machine frame integrated sealing device which comprises a packaging type seal, a driving body and a frame body connected between the packaging type seal and the driving body, and the packaging type seal and the driving body are integrated together through the frame body. The integrated design can save the installation space of the device, improves the installation precision of the device, and can be sold and installed as a whole. The device is easy and convenient to install, and the connecting position of the driving spindle and the equipment spindle can be easily positioned.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mechanical seal device, in particular to a rack integrated seal device. BACKGROUND

[0002] Mechanical seal is a common industrial element, usually connected between the device and the driving device, the driving spindle of the driving device is connected with the device spindle, and the mechanical seal seals and isolates the oil, fuel and gas in the device. SUMMARY

[0003] To solve the above technical problems, the utility model provides a rack integrated seal device, including the set seal, the set seal includes the device spindle and the shaft sleeve set to the outside of the device spindle, and the end cover and the connecting flange set to the shaft sleeve and arranged in the atmospheric side and the device side of the set seal,

[0004] The rack body includes an upper connecting cover arranged on the side of the end cover away from the device, the upper connecting cover is coaxially arranged with the end cover, a plurality of groups of connecting columns are arranged along the circumference of the upper connecting cover, and the other ends of the plurality of groups of connecting columns are fixedly connected to the end cover.

[0005] The driving body is fixedly connected to the side of the upper connecting cover away from the set seal, and the driving spindle passes through the center of the upper connecting cover and is connected with the device spindle.

[0006] Further, the plurality of groups of connecting columns are uniformly distributed on the circumferential surface of the upper connecting cover with the device spindle as the center.

[0007] Further, the set seal is a double-end mechanical seal, which is composed of two pairs of oppositely arranged dynamic ring assemblies and static ring assemblies, and the two static ring assemblies are connected to the outside of the dynamic ring assemblies.

[0008] Further, the outer side of the end cover close to the atmosphere is provided with an outer ring and an inner ring matched with each other, the outer ring is arranged on the side of the inner ring away from the atmosphere and located outside the inner ring, and the outer ring and the inner ring are connected with a fastening screw arranged in the axial direction.

[0009] Further, the outer ring and the inner ring have oppositely arranged inclined extrusion surfaces, when the fastening screw is rotated, the outer ring will continuously extrude the inner ring along the inclined extrusion surface.

[0010] Further, the driving main shaft of the driving body is connected with the equipment main shaft through a shaft coupling, and the shaft coupling is fixedly connected to the bottom of the upper connecting cover.

[0011] Further, the frame body further comprises an intermediate connecting cover arranged between the end cover and the upper connecting cover, and the center and the circumference of the intermediate connecting cover are respectively provided with through holes for the equipment main shaft and the connecting column to pass through.

[0012] Further, the intermediate connecting cover is fixedly connected with a bearing assembly at the middle part, and the equipment main shaft passes through the center of the bearing assembly.

[0013] Further, the equipment main shaft comprises a connecting plate arranged above and a containing bin arranged below the connecting plate, the connecting plate is fixedly connected to the intermediate connecting cover, and the containing bin is provided with a bearing, the inner end surface of the bearing is in contact with the equipment main shaft, and the outer end surface of the bearing is in contact with the bin wall of the containing bin.

[0014] The utility model provides a rack integrated seal device, including container type seal, driving body and the frame body connected between the two, through frame body integrates container type seal and driving body together. Integrated design can save the installation space of device, improves the installation precision of device, and can sell and install as a whole. The utility model discloses simple installation, can easily position the connecting position of driving main shaft and equipment main shaft. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of a rack integrated seal device of the utility model.

[0016] Reference signs: equipment main shaft 1, shaft sleeve 2, dynamic ring assembly 3, static ring assembly 4, connecting flange 5, end cover 6, driving main shaft 7, upper connecting cover 8, intermediate connecting cover 9, connecting column 10, speed reducer 11, shaft coupling 12, bearing 13, containing bin 14, connecting plate 15, inner ring 16, outer ring 17. DETAILED DESCRIPTION

[0017] As Figure 1The rack integrated sealing device shown in the embodiment comprises a packaged seal, a driving body and a rack body connected between the packaged seal and the driving body. The packaged seal comprises a central equipment shaft 1 and a shaft sleeve 2 sleeved outside the equipment shaft 1. The equipment shaft 1 is a main functional component of a working equipment, penetrates the center of the packaged seal and is driven to rotate by the driving body. The axial two sides of the equipment shaft 1 are respectively an equipment side and an atmosphere side. The packaged seal comprises a sealing assembly composed of a dynamic ring assembly 3 and a static ring assembly 4, and the dynamic ring and the static ring isolate the medium through the end face cooperation. The equipment side of the packaged seal is provided with a connecting flange 5 connected with the working equipment. The connecting flange 5 is fixed in the working position, and the sealing assembly can isolate the medium. The atmosphere side of the packaged seal is provided with an end cover 6. The end cover 6 is used for pressing the sealing assembly, so that the entire packaged seal can be regarded as a packaged whole, and the transmission, assembly and replacement of the sealing device are facilitated. The packaged seal with the sealing assembly, the end cover 6 and the connecting flange 5 and the connection mode of the above components are prior art, and the above structure is not described herein.

[0018] The driving body is arranged on the atmosphere side of the packaged seal, and an output shaft thereof is a driving shaft 7. The driving shaft 7 is coaxially connected with the equipment shaft 1 and provides rotary power for the equipment shaft 1. The rack body comprises an upper connecting cover 8 arranged on the side of the end cover 6 away from the equipment. The upper connecting cover 8 is coaxially arranged with the end cover 6. The driving body is fixedly connected to the side of the upper connecting cover 8 away from the packaged seal. The driving shaft 7 penetrates the center of the upper connecting cover 8 and is connected with the equipment shaft 1. A plurality of groups of connecting columns 10 are arranged along the circumference of the upper connecting cover 8. The plurality of groups of connecting columns 10 are uniformly distributed on the circumferential surface of the upper connecting cover 8 with the equipment shaft 1 as the center. The other ends of the plurality of groups of connecting columns 10 are fixedly connected to the end cover 6. The number of the connecting columns 10 is preferably three or four. The inner side of the plurality of groups of connecting columns 10 is the accommodation space of the equipment shaft 1 and the driving shaft 7.

[0019] In the embodiment, the packaged seal is a double-end-face mechanical seal composed of two pairs of oppositely arranged dynamic ring assemblies 3 and static ring assemblies 4. The dynamic ring and the static ring form sealing end faces for the medium. The two pairs of sealing end faces isolate the media on the equipment side and the atmosphere side, respectively. The structure of the double-end-face mechanical seal is prior art, and the specific structure is not described herein.

[0020] The outer ring 17 and the inner ring 16 are arranged on the outer side of the end gland 6 close to the atmosphere side, and are used to lock the shaft sleeve 2 on the outer side of the equipment main shaft 1. The outer ring 17 is arranged on the outer side of the inner ring 16 away from the atmosphere, and the outer ring 17 is arranged on the outer side of the inner ring 16. The outer ring 17 and the inner ring 16 have oppositely arranged inclined extrusion surfaces. The outer ring 17 and the inner ring 16 are connected by an axially arranged fastening screw. When the fastening screw is rotated, the outer ring 17 continuously extrudes the inner ring 16 along the inclined extrusion surface, gradually shrinks the inner ring 16, and then applies radial pressure to the shaft sleeve 2.

[0021] In the embodiment, the driving body is a motor reducer 11, and the equipment main shaft 1 is a stirring shaft of a reaction kettle. The output shaft of the reducer 11 is connected to the stirring shaft through a shaft coupling 12, and the shaft coupling 12 is fixedly connected to the bottom of the upper connecting cover 8. Part of the reducer 11 is provided with a bearing 13, and the driving main shaft 7 of the reducer 11 extends below the upper connecting cover 8. When the driving main shaft 7 rotates, the equipment main shaft 1 can be driven to rotate. The integrated design of the frame body can save space and improve operation accuracy.

[0022] Further, for the driving body without the bearing 13, the frame body further comprises an intermediate connecting cover 9 arranged between the end gland 6 and the upper connecting cover 8. The center and the circumference of the intermediate connecting cover 9 are respectively provided with through holes for the equipment main shaft 1 and the connecting column 10 to pass through. The intermediate connecting cover 9 divides the entire frame body into upper and lower spaces. The intermediate connecting cover 9 is fixedly connected with a bearing assembly in the middle. The bearing assembly includes a connecting plate 15 above and a containing bin 14 below the connecting plate 15. The connecting plate 15 is fixedly connected to the intermediate connecting cover 9, and the bearing 13 is installed in the containing bin 14. The inner end surface of the bearing 13 is in contact with the equipment main shaft 1, and the outer end surface of the bearing 13 is in contact with the bin wall of the containing bin 14. Since the position of the containing bin is fixed, the equipment main shaft 1 can naturally pass through the middle of the bearing 13, and the installation position of the equipment main shaft 1 is automatically positioned.

[0023] The installation process of the embodiment is as follows: the shaft coupling 12 is installed at the bottom of the upper connecting cover 8, the driving body is installed at the top of the upper connecting cover 8, and the bearing assembly is connected to the intermediate connecting cover 9. The upper connecting cover 8 is sleeved on the top of the container type seal through the connecting column 10, and the frame body, the driving body and the container type seal form a unified whole. Then the connecting flange 5 is installed at the position to be sealed of the equipment, and the equipment main shaft 1 can naturally pass through the bearing 13 and the shaft coupling 12, and is connected to the driving main shaft 7. Finally, the outer ring 17 and the inner ring 16 on one side of the end gland 6 are fastened, and the assembly of the entire sealing device is completed.

[0024] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A rack and pinion integrated seal apparatus, characterized by: The application relates to a seal assembly, which comprises a device main shaft (1), a shaft sleeve (2) sleeved outside the device main shaft (1), an end cover (6) and a connecting flange (5) sleeved on the shaft sleeve (2) and arranged on the atmospheric side and the device side of the seal assembly. The frame body comprises an upper connecting cover (8) arranged on the side of the end cover (6) away from the device, the upper connecting cover (8) is coaxially arranged on the end cover (6), a plurality of groups of connecting columns (10) are arranged on the circumference of the upper connecting cover (8), and the other ends of the plurality of groups of connecting columns (10) are fixedly connected to the end cover (6). A driving body is fixedly connected to the side of the upper connecting cover (8) away from the seal assembly, and a driving main shaft (7) penetrates the center of the upper connecting cover (8) and is connected to the device main shaft (1).

2. A rack-mounted seal as claimed in claim 1, wherein: The plurality of groups of connecting columns (10) are uniformly distributed on the circumferential surface of the upper connecting cover (8) with the device main shaft (1) as the center.

3. A rack-mounted seal as defined in claim 1, wherein: The seal assembly is a double-end mechanical seal, which comprises two pairs of oppositely arranged dynamic ring assemblies (3) and static ring assemblies (4), and the two static ring assemblies (4) are connected to the outer side of the dynamic ring assemblies (3).

4. A rack-mounted seal as defined in claim 1, wherein: The outer side of the end cover (6) close to the atmosphere is provided with an outer ring (17) and an inner ring (16) matched with each other, the outer ring (17) is arranged on the side of the inner ring (16) away from the atmosphere and located outside the inner ring (16), and fastening screws are arranged between the outer ring (17) and the inner ring (16) in an axial direction.

5. A rack-mounted seal as claimed in claim 4, wherein: The outer ring (17) and the inner ring (16) have oppositely arranged inclined extrusion surfaces, and when the fastening screws are rotated, the outer ring (17) continuously extrudes the inner ring (16) along the inclined extrusion surfaces.

6. A rack-mounted sealed device as claimed in claim 1, wherein: The driving main shaft (1) of the driving body is connected to the device main shaft (1) through a shaft coupling (12), and the shaft coupling (12) is fixedly connected to the bottom of the upper connecting cover (8).

7. A rack-mounted sealed device as claimed in claim 1, wherein: The frame body further comprises an intermediate connecting cover (9) arranged between the end cover (6) and the upper connecting cover (8), the center and the circumference of the intermediate connecting cover (9) are respectively provided with through holes for the device main shaft (1) and the connecting columns (10) to penetrate.

8. A rack-mounted seal as claimed in claim 7, wherein: A bearing assembly is fixedly connected to the middle part of the intermediate connecting cover (9), and the device main shaft (1) penetrates the center of the bearing assembly.

9. A rack-mounted seal as claimed in claim 8, wherein: The device main shaft (1) comprises a connecting plate (15) arranged above and a containing bin (14) arranged below the connecting plate (15), the connecting plate (15) is fixedly connected to the intermediate connecting cover (9), a bearing (13) is arranged in the containing bin (14), the inner end surface of the bearing (13) is in contact with the device main shaft (1), and the outer end surface of the bearing (13) is in contact with the bin wall of the containing bin (14).

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