Turbine shell sealing sleeve

Abstract

The utility model discloses a turbine shell sealing sleeve, which relates to the related technical field of sealing sleeves and comprises a sleeve shell cylinder, a semi-sealing rubber ring is mounted at one end of the sleeve shell cylinder, a mounting plate is mounted at the outer end of the sleeve shell cylinder, a full-sealing rubber ring is mounted at the outer end of the mounting plate, a large sealing ring is mounted at the inner end of the sleeve shell cylinder, a rotating groove is formed in the inner end of the sleeve shell cylinder, and a sealing ring is mounted in the rotating groove. A sleeve shaft barrel is installed at the middle end of the rotating groove, and a small sealing ring is installed at the inner end of the sleeve shaft barrel. Through the arrangement of the sleeve shell cylinder, the semi-sealing rubber ring, the full-sealing rubber ring, the large sealing ring, the rotating groove, the sleeve shaft cylinder, the small sealing rings and the small sealing rings, the space of the inner side and the space of the outer side of the shaft body are sealed through the front small sealing ring and the rear small sealing ring, and the shaft body can rotate at a high speed in the rotating groove formed in the inner end of the sleeve shell cylinder through the sleeve shaft cylinder; and the middle of the sleeve shell barrel and the sleeve shaft barrel is sealed again through a large sealing ring, the outer end sleeve shell barrel and the turbine shell are sealed through a full-sealing rubber ring and a semi-sealing rubber ring, and the sealing effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to sealing sleeves, in particular to a turbine shell sealing sleeve. Background Art

[0002] When the turbocharger is working, the exhaust gas discharged by the engine can reach a temperature of several hundred degrees Celsius and a high pressure. These exhaust gases drive the turbine to rotate at high speed. If there is no turbine casing sealing sleeve, the exhaust gas will leak from the gap between the turbine shaft and the casing to other areas, which will have a serious impact on the normal operation of the bearing. Because the normal operation of the bearing requires a clean lubricating oil environment, the intrusion of exhaust gas will increase the temperature of the lubricating oil, deteriorate it, and reduce the lubrication performance, which will lead to increased bearing wear and even damage the bearing. Therefore, a turbine casing sealing sleeve is needed.

[0003] The existing turbine casing sealing sleeve cannot effectively improve the sealing effect of the device during operation, cannot effectively improve the convenience of device installation, and cannot increase the service life of the device. Therefore, a turbine casing sealing sleeve is urgently needed. Utility Model Content

[0004] Based on this, the purpose of the present invention is to provide a turbine casing sealing sleeve to solve the problem that the existing turbine casing sealing sleeve cannot effectively improve the sealing effect of the device when in use, cannot effectively improve the convenience of installation of the device, and cannot improve the service life of the device.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a turbine casing sealing sleeve, comprising a casing tube, a half-sealing rubber ring is installed at one end of the casing tube, a mounting plate is installed at the outer end of the casing tube, a full-sealing rubber ring is installed at the outer end of the mounting plate, a large sealing ring is installed at the inner end of the casing tube, a rotating groove is opened at the inner end of the casing tube, a sleeve cylinder is installed at the middle end of the rotating groove, and a small sealing ring is installed at the inner end of the sleeve cylinder.

[0006] A connecting plate screw is installed at one end of the mounting plate.

[0007] An oil filling hole is provided at one end of the casing tube, and a threaded plug is installed at the middle end of the oil filling hole.

[0008] Preferably, the inner end surface of the half-sealing rubber ring and the outer end surface of the casing are adhered to each other, and the full-sealing rubber ring is movably connected to the casing via a mounting plate.

[0009] Preferably, the large sealing ring is snap-fitted to the sleeve, and the inner end surface of the large sealing ring is tightly fitted to the outer end surface of the sleeve.

[0010] Preferably, the sleeve cylinder forms a rotating structure with the housing cylinder through a rotating groove, and the sleeve cylinder is engaged with the small sealing ring.

[0011] Preferably, the mounting plate is threadedly connected to the casing via a connecting plate screw, and the inner wall diameter of the mounting plate is larger than the outer wall diameter of the casing.

[0012] Preferably, the threaded plug is threadedly connected to the casing through an oil filling hole, and one end of the semi-sealing rubber ring is open-hole arranged.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model provides a sleeve barrel, a half-sealing rubber ring, a full-sealing rubber ring, a large sealing ring, a rotating groove, a sleeve barrel, a small sealing ring and a small sealing ring, so that the shaft body passes through the sleeve barrel, and the space inside and outside the shaft body is sealed by the front and rear small sealing rings. The shaft body can be rotated at high speed in the rotating groove opened at the inner end of the sleeve barrel through the sleeve barrel, and the sleeve barrel and the sleeve barrel are sealed again by the large sealing ring. The outer end sleeve barrel is sealed with the turbine shell by the full sealing rubber ring and the half sealing rubber ring, and the large sealing ring and the small sealing ring are both anti-lateral movement. This multiple sealing combination allows the device to effectively prevent the leakage of internal oil and gas without affecting the rotation of the shaft body, thereby improving the sealing effect of the device.

[0015] 2. The present invention provides a casing, a mounting plate, and a connecting plate screw, so that the casing is clamped in the inner and outer contact positions of the turbine casing through the gap between the mounting plates. Then, the bolts on the connecting plate screw are tightened inwardly to secure the mounting plate and the casing, thereby improving the convenience of device installation.

[0016] 3. The utility model provides a sleeve, an oil filling hole and a threaded plug. The threaded plug is operated to leave the oil filling hole, and lubricating oil is injected into the oil filling hole, thereby enhancing the working capacity of the bearing and improving the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model in cross section;

[0019] Figure 3 This is an enlarged structural diagram of the mounting plate of the utility model;

[0020] Figure 4 It is a schematic diagram of the enlarged structure of the small sealing ring of the utility model.

[0021] In the figure: 1. Shell cylinder; 2. Half-sealing rubber ring; 3. Mounting plate; 4. Full-sealing rubber ring; 5. Large sealing ring; 6. Rotating groove; 7. Sleeve cylinder; 8. Small sealing ring; 9. Connecting plate screw; 10. Oil filling hole; 11. Threaded plug. DETAILED DESCRIPTION

[0022] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] The following describes an embodiment of the present invention based on its overall structure.

[0024] See also Figure 1-4 , a turbine casing sealing sleeve, including a casing tube 1, a half-sealing rubber ring 2 is installed at one end of the casing tube 1, a mounting plate 3 is installed at the outer end of the casing tube 1, a full-sealing rubber ring 4 is installed at the outer end of the mounting plate 3, a large sealing ring 5 is installed at the inner end of the casing tube 1, a rotating groove 6 is opened at the inner end of the casing tube 1, a sleeve cylinder 7 is installed at the middle end of the rotating groove 6, a small sealing ring 8 is installed at the inner end of the sleeve cylinder 7, the inner end surface of the half-sealing rubber ring 2 and the outer end surface of the casing tube 1 are adhered to each other, and the full-sealing rubber ring 4 is movably connected to the casing tube 1 through the mounting plate 3, the large sealing ring 5 is snap-connected to the casing tube 1, and the inner end surface of the large sealing ring 5 is tightly fitted with the outer end surface of the sleeve cylinder 7, and the sleeve cylinder 7 is connected to the casing tube through the rotating groove 6. 1 constitutes a rotating structure, and the sleeve cylinder 7 is engaged with the small sealing ring 8. The shaft body passes through the sleeve cylinder 7, and the space inside and outside the shaft body is sealed by the two small sealing rings 8 at the front and rear ends. The shaft body can be rotated at high speed in the rotation groove 6 opened at the inner end of the sleeve cylinder 1 through the sleeve cylinder 7. The sleeve cylinder 1 and the sleeve cylinder 7 are sealed again by the large sealing ring 5. The outer end sleeve cylinder 1 is sealed with the turbine shell by the full sealing ring 4 and the half sealing ring 2. The large sealing ring 5 and the small sealing ring 8 are both anti-lateral movement settings. This multiple sealing combination allows the device to effectively prevent the leakage of internal oil and gas without affecting the rotation of the shaft body, thereby improving the sealing effect of the device.

[0025] See also Figure 1-4 , a turbine casing sealing sleeve, a connecting plate screw 9 is installed at one end of the mounting plate 3, the mounting plate 3 is threadedly connected to the casing tube 1 through the connecting plate screw 9, and the inner wall diameter of the mounting plate 3 is larger than the outer wall diameter of the casing tube 1, the casing tube 1 is clamped in the inner and outer contact positions of the turbine casing through the gap between the mounting plates 3, and then the bolts on the connecting plate screw 9 are tightened inward, so that the mounting plate 3 and the casing tube 1 are fastened, thereby improving the convenience of device installation.

[0026] See also Figure 1-4 A turbine casing sealing sleeve, an oil filling hole 10 is opened at one end of the casing tube 1, a threaded plug 11 is installed at the middle end of the oil filling hole 10, the threaded plug 11 is threadedly connected to the casing tube 1 through the oil filling hole 10, and one end of the semi-sealing rubber ring 2 is an open hole setting. The threaded plug 11 is operated to leave the oil filling hole 10, and lubricating oil is injected into the oil filling hole 10 to enhance the working capacity of the bearing and improve the service life of the device.

[0027] Working principle: When in use, the casing 1 is first clamped in the inner and outer contact positions of the turbine shell through the gap between the mounting plates 3, and then the bolts on the connecting plate screws 9 are tightened inwards, so that the mounting plates 3 and the casing 1 are fastened, and the shaft passes through the sleeve barrel 7, and the space inside and outside the shaft body is sealed by two small sealing rings 8 at the front and rear, and the shaft body can be rotated at high speed in the rotating groove 6 opened at the inner end of the sleeve barrel 1 through the sleeve barrel 7, and the middle of the sleeve barrel 1 and the sleeve barrel 7 are sealed again by the large sealing ring 5, and the outer end of the sleeve barrel 1 is sealed by the full The sealing ring 4 and the half sealing ring 2 are sealed with the turbine housing, and the large sealing ring 5 and the small sealing ring 8 are both anti-lateral displacement type. This multiple sealing combination allows the device to effectively prevent the leakage of internal oil and gas without affecting the rotation of the shaft, and the threaded plug 11 can be operated to leave the oil filling hole 10. By injecting lubricating oil into the oil filling hole 10, the working capacity of the bearing is enhanced, thus completing the use process of the device. The content not described in detail in this manual belongs to the existing technology known to professional and technical personnel in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A turbine housing sealing sleeve, comprising a housing sleeve (1), characterized in that: A half-sealing rubber ring (2) is installed at one end of the sleeve tube (1), a mounting plate (3) is installed at the outer end of the sleeve tube (1), a full-sealing rubber ring (4) is installed at the outer end of the mounting plate (3), a large sealing ring (5) is installed at the inner end of the sleeve tube (1), a rotating groove (6) is opened at the inner end of the sleeve tube (1), a sleeve tube (7) is installed at the middle end of the rotating groove (6), and a small sealing ring (8) is installed at the inner end of the sleeve tube (7); A connecting plate screw (9) is installed at one end of the mounting plate (3); An oil filling hole (10) is provided at one end of the casing cylinder (1), and a threaded plug (11) is installed at the middle end of the oil filling hole (10).

2. The turbine housing sealing sleeve according to claim 1, characterized in that: The inner end surface of the half-sealing rubber ring (2) and the outer end surface of the casing tube (1) are adhered to each other, and the full-sealing rubber ring (4) is movably connected to the casing tube (1) through the mounting plate (3).

3. The turbine housing sealing sleeve according to claim 1, characterized in that: The large sealing ring (5) is snap-fitted to the housing tube (1), and the inner end surface of the large sealing ring (5) is tightly fitted to the outer end surface of the sleeve tube (7).

4. The turbine housing sealing sleeve according to claim 1, characterized in that: The sleeve cylinder (7) forms a rotating structure with the housing cylinder (1) through the rotating groove (6), and the sleeve cylinder (7) is connected to the small sealing ring (8) by snapping.

5. The turbine housing sealing sleeve according to claim 1, characterized in that: The mounting plate (3) is threadedly connected to the casing (1) via a connecting plate screw (9), and the inner wall diameter of the mounting plate (3) is larger than the outer wall diameter of the casing (1).

6. The turbine housing sealing sleeve according to claim 1, characterized in that: The threaded plug (11) is threadedly connected to the casing (1) through the oil filling hole (10), and one end of the semi-sealing rubber ring (2) is arranged in an open hole.

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