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Agitator shaft end seal failure diagnosis apparatus

A fault diagnosis device and shaft end sealing technology, which is applied in the direction of measuring devices, fluid tightness testing, machine/structural component testing, etc., can solve problems such as damage to shaft end seals, mud intrusion, worn spindles, etc., and reach maintenance intervals Long-term, large economic loss, and the effect of large economic loss

Inactive Publication Date: 2008-05-07
SANY HEAVY IND CO LTD (CN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual production process, even for international brand mixers, shaft end seal leakage occurs from time to time. The key reason is that there is no detection device on the oil circuit. When the plunger pump or distribution valve fails, no butter is injected into the shaft end seal, and the mixer Continuing to work will cause mud to intrude from the gap where the main shaft rotates, which will quickly destroy the shaft end seal and wear the main shaft, and the mud will leak from the shaft end

Method used

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  • Agitator shaft end seal failure diagnosis apparatus
  • Agitator shaft end seal failure diagnosis apparatus
  • Agitator shaft end seal failure diagnosis apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: as figure 1 and figure 2 As shown, the mixer shaft end seal fault diagnosis device in the present invention is mainly used for single-shaft and double-shaft concrete mixers, and it is installed on the butter lubrication pipe 11 of the concrete mixer. The detection device includes a sliding body 1, a sliding rod 3, a sealing ring 4, a spring 5, an adjusting nut 6 and a sensor 7. The sliding rod 3, the sealing ring 4, the spring 5 and the adjusting nut 6 are all arranged in the sliding body 1. The sliding body 1 is provided with an oil inlet 8 and an oil outlet 9 which communicate with the grease lubricating pipeline 11, and the oil inlet 8 and the oil outlet 9 communicate and are not in a straight line. One end of the sliding rod 3 is connected with the oil inlet 8, and the oil inlet 8 can be blocked when it is pressed, and the other end is connected with the adjusting nut 6, and a sealing ring 4 is provided between the sliding rod 3 and the sliding body ...

Embodiment 2

[0022] Embodiment 2: as image 3 As shown, the structure of this embodiment is roughly the same as that of Embodiment 1, the difference is that the contact surface on the slide rod 3 and the connection end of the oil inlet 8 is a conical surface, and the conical end surface can make the slide rod 3 better contact with the oil inlet port 8. The oil inlet 8 is connected to each other, and when the slide rod 3 is in the state of blocking the oil inlet 8, the sealing performance is better. By analogy, the structure of the present invention is not limited to the structure of the embodiment, and the contact surface on the sliding rod 3 and the connection end of the oil inlet 8 can also be in other shapes.

[0023] Working principle: The working principle of embodiment 1 and embodiment 2 is basically the same. They both adopt the scheme of detecting whether there is butter flowing into the shaft end seal. The detection device of the present invention is added above, and the pressure...

Embodiment 3

[0024] Embodiment 3: as Figure 4 As shown, the mixer shaft end seal fault diagnosis device in the present invention is mainly used for single-shaft and double-shaft concrete mixers, and it is installed on the butter lubrication pipe 11 of the concrete mixer. The detection device includes a sliding body 1, a push block 2, a sliding rod 3, a sealing ring 4, a spring 5, an adjusting nut 6 and a sensor 7. The sliding rod 3, the sealing ring 4, the spring 5 and the adjusting nut 6 are all arranged on the sliding body 1. Inside. The sliding body 1 is provided with an oil inlet 8 and an oil outlet 9 which communicate with the grease lubricating pipeline 11, and the oil inlet 8 and the oil outlet 9 communicate and are not in a straight line. One end of the slide bar 3 is connected with the oil inlet 8, and the other end is connected with the adjustment nut 6, and a sealing ring 4 is arranged between the slide bar 3 and the slide body 1 to prevent the butter from infiltrating. A pus...

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Abstract

The invention discloses an agitator axle end sealed failure diagnose, which comprises a slide body, a slide bar, a spring, an adjusting nut and a sensor, wherein the slide bar, the spring and the adjusting nut are positioned inside the slide body; the oil inlet hole and the oil outlet hole connected with the butter lubricate pipe are positioned on the slide body; the oil inlet hole and the oil outlet hole are interconnected and are not on a line; one end of the slide bar is connected with the oil inlet hole. While the other end is connected with the nut; the step part is positioned on the slide bar; the spring is positioned between the step part and the adjusting nut; the sensor is positioned on the slide body which is in opposite direction of the oil inlet hole.

Description

technical field [0001] The invention mainly relates to the field of concrete mixers used in the construction industry, in particular to a mixer shaft end seal fault diagnosis device. Background technique [0002] At present, the horizontal shaft forced concrete mixer produced at home and abroad, the shaft end sealing device mainly plays a sealing role, so that the mud does not enter the shaft end and protects the main shaft. The shaft end sealing device includes a set of floating sealing rings and a skeleton rubber oil seal. It mainly relies on butter to fill the internal space of the shaft end sealing device to block the mud so that it cannot enter the shaft end sealing device, thereby ensuring the normal operation of the bearing and the main shaft. Butter is pumped to the shaft end sealing device by plunger pump. The plunger pump has single pump and multi-point pump. The oil pumped by the single pump is branched to each shaft end sealing point through the distribution valv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/00G01M3/26G01M19/00G01M99/00
Inventor 彭国成陈明林冯志明
Owner SANY HEAVY IND CO LTD (CN)
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