Novel rapping shaft package

Abstract

The utility model discloses a novel rapping shaft package which comprises a rapping device, a shaft seal assembly is installed on a shaft of the rapping device, the shaft seal assembly is formed by an upper sleeve, a middle sleeve and a lower sleeve which are integrally formed and sequentially connected, the interior of the shaft seal assembly is hollow, the upper sleeve and the lower sleeve are cylindrical, the middle sleeve is in a wave-shaped cone shape, and the lower sleeve is in a wave-shaped cone shape. When the shaft seal assembly is used, the upper sleeve of the shaft seal assembly is hooped on a furnace body sleeve from the upper portion of the indicating arrow through the hose clamp, the hoop arranged in the upper sleeve can contract slowly, and the hoop is provided with the disconnecting groove, so that the hoop can contract and deform when being hooped by the hose clamp so as to adapt to shaft bodies of different sizes, and the shaft bodies are fixed through the hose clamp. In the same way, the lower sleeve of the shaft seal assembly is held and fixed on the rapping rod through the hose clamp, finally, the inside of the furnace is isolated from the outside, and when the rapping rod stretches out and draws back, the middle sleeve is in a wave-shaped cone shape, so that the wave-shaped cone-shaped structure of the middle sleeve can compensate the displacement amount of stretching out and drawing back of the rapping rod.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft packaging, in particular to a novel rapping shaft packaging. Background Art

[0002] During the use of the rapping device, shaft seals need to be performed on the furnace body casing and the rapping rod. The existing shaft seals used in the rapping device are packing seals, which have poor wrapping and lubrication properties. After long-term use, the sealing performance is significantly reduced, which will cause serious air leakage in the furnace body and affect the economic and stable operation of the boiler. In addition, the replacement of the shaft seal requires a large amount of work and has high maintenance costs. Utility Model Content

[0003] The purpose of this utility model is to solve the problems that the packing seal and lubrication of the prior art are poor, the sealing performance is significantly reduced after long-term use, which will cause serious air leakage in the furnace body, affecting the economic and stable operation of the boiler, and the shaft seal replacement is a large project with high maintenance costs.

[0004] Therefore, based on the above problems, the utility model proposes a new type of rapping shaft packaging, including a rapping device, on the shaft of which a shaft sealing assembly is installed. The shaft sealing assembly is composed of an upper sleeve, a middle sleeve and a lower sleeve integrally formed and connected in sequence, and is hollow inside. The upper sleeve and the lower sleeve are cylindrical, and the middle sleeve is a wavy cone.

[0005] Preferably, the upper sleeve, the middle sleeve and the lower sleeve are all made of rubber material, and multiple reinforcing ribs are implanted inside the upper sleeve, the middle sleeve and the lower sleeve, and the reinforcing ribs are made of Oxford spinning material.

[0006] Preferably, a circle of mounting grooves are provided inside the upper sleeve and the lower sleeve, a hoop is placed inside the mounting groove, the hoop is cylindrical, and a disconnecting groove is provided in the middle of the hoop.

[0007] Preferably: the outer surfaces of the upper sleeve and the lower sleeve are provided with indicator arrows, the position of the indicator arrows is opposite to the position of the disconnection groove in the hoop, and the upper sleeve and the lower sleeve of the rapping device and the shaft seal assembly are locked together through the throat hoop starting from the upper part of the indicator arrows.

[0008] Beneficial effect: When in use, the upper sleeve of the shaft seal assembly is tightened on the furnace body sleeve through the throat hoop from the upper part of the indicator arrow, and the ring hoop provided inside the upper sleeve will slowly shrink. The ring hoop is provided with a disconnect groove, so that the ring hoop shrinks and deforms when subjected to the tightening force of the throat hoop to adapt to shafts of different sizes, and is fixed by the throat hoop to ensure that it fits the shaft body. Similarly, the lower sleeve of the shaft seal assembly is tightly fixed on the rapping rod through the throat hoop, and finally the furnace is isolated from the outside world, and when the rapping rod is extended and retracted, it is in a wavy cone shape through the middle sleeve, so the wavy cone structure of the middle sleeve can compensate for the displacement of the extension and retraction of the rapping rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0010] Figure 2 This is a schematic diagram of the overall structure of the utility model;

[0011] Figure 3 It is a cross-sectional schematic diagram of the overall structure of the utility model;

[0012] Figure 4 It is a cross-sectional schematic diagram of the internal structure of the upper sleeve of the utility model.

[0013] Figure 5 This is a schematic diagram of the hoop structure of the utility model.

[0014] Figures 1 to 5 The reference numerals are: shaft seal assembly 1, middle sleeve 101, upper sleeve 102, lower sleeve 103, indicator arrow 1031, installation groove 1032, reinforcement rib 2, hoop 3, disconnection groove 301, throat hoop 4, rapping shaft and furnace casing A. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0016] Reference Figures 1 to 5 A new type of rapping shaft package includes a rapping device. A shaft seal assembly 1 is installed on the shaft of the rapping device. The shaft seal assembly 1 is composed of an upper sleeve 102, a middle sleeve 101 and a lower sleeve 103 that are integrally formed and connected in sequence, and the interior is hollow. The upper sleeve 102 and the lower sleeve 103 are cylindrical, and the middle sleeve 101 is a wavy cone.

[0017] Preferably, the upper sleeve 102, the middle sleeve 101 and the lower sleeve 103 are all made of rubber material, and multiple reinforcing ribs 2 are implanted inside the upper sleeve 102, the middle sleeve 101 and the lower sleeve 103. The reinforcing ribs 2 are made of Oxford spinning material. By providing the reinforcing ribs 2, the reinforcing ribs 2 can strengthen the rubber material inside the upper sleeve 102, the middle sleeve 101 and the lower sleeve 103, thereby reducing the tensile deformation of the upper sleeve 102, the middle sleeve 101 and the lower sleeve 103, thereby indirectly preventing material fatigue caused by long-term tensile deformation of the rubber material.

[0018] Preferably: a circle of mounting grooves 1032 are provided inside the upper sleeve 102 and the lower sleeve 103, and a hoop 3 is placed inside the mounting groove 1032. The hoop 3 is cylindrical, and a disconnect groove 301 is provided in the middle of the hoop 3. The hoop 3 is made of deformable memory material and will shrink when subjected to force. When in use, the upper sleeve 102 of the shaft seal assembly is tightened on the furnace body sleeve through the throat hoop 4 from the upper part of the arrow indicating arrow 1031. At this time, the hoop 3 provided inside the upper sleeve 102 will slowly shrink. The disconnect groove 301 is provided on the hoop 3, so that the hoop 3 shrinks and deforms when subjected to the tightening force of the throat hoop 4, thereby adapting to shafts of different sizes.

[0019] Preferably: the outer surfaces of the upper sleeve 102 and the lower sleeve 103 are provided with an indicator arrow 1031, the position of the indicator arrow 1031 is opposite to the position of the disconnection groove 301 in the hoop 3, and the upper sleeve 102 and the lower sleeve 103 of the rapping device and the shaft seal assembly 1 are locked together through the throat hoop 4 starting from the upper part of the indicator arrow 1031.

[0020] Working principle: When in use, the upper sleeve 102 of the shaft seal assembly is tightened on the furnace body sleeve through the throat hoop 4 from the upper part of the arrow indicating arrow 1031. At this time, the ring hoop 3 provided inside the upper sleeve 102 will slowly shrink. The ring hoop 3 is provided with a disconnection groove 301, so that the ring hoop 3 shrinks and deforms when subjected to the tightening force of the throat hoop 4 to adapt to shafts of different sizes, and is fixed by the throat hoop to ensure that it fits the shaft. Similarly, the lower sleeve 103 of the shaft seal assembly is tightly fixed on the rapping rod through the throat hoop 4, and finally the furnace is isolated from the outside world. When the rapping rod is extended or retracted, the maximum displacement is 8 mm. The upper sleeve 102, the middle sleeve 101 and the lower sleeve 103 are all made of rubber material, and the middle sleeve 101 is a wavy cone. Therefore, the wavy cone structure of the middle sleeve 101 can compensate for the displacement of the rapping rod.

[0021] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A novel rapping shaft package, comprising a rapping device, a shaft seal assembly (1) being mounted on the shaft of the rapping device, characterized in that: The shaft seal assembly (1) is composed of an upper sleeve (102), a middle sleeve (101) and a lower sleeve (103) which are integrally formed and connected in sequence, and is hollow inside. The upper sleeve (102) and the lower sleeve (103) are cylindrical, and the middle sleeve (101) is wavy and conical.

2. The novel rapping shaft package according to claim 1, characterized in that: The upper sleeve (102), the middle sleeve (101) and the lower sleeve (103) are all made of rubber material. A plurality of reinforcing ribs (2) are implanted inside the upper sleeve (102), the middle sleeve (101) and the lower sleeve (103), and the reinforcing ribs (2) are made of Oxford spinning material.

3. The novel rapping shaft package according to claim 2, characterized in that: A circle of mounting grooves (1032) are provided inside the upper sleeve (102) and the lower sleeve (103), and a hoop (3) is placed inside the mounting groove (1032). The hoop (3) is cylindrical, and a disconnecting groove (301) is provided in the middle of the hoop (3).

4. The novel rapping shaft package according to claim 3 is characterized in that: The outer surfaces of the upper sleeve (102) and the lower sleeve (103) are both provided with an indicator arrow (1031), and the position of the indicator arrow (1031) is opposite to the position of the disconnection groove (301) in the hoop (3). The upper sleeve (102) and the lower sleeve (103) of the rapping device and the shaft seal assembly (1) are locked together through the throat hoop (4) starting from the upper part of the indicator arrow (1031).

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