Mixer truck rotary sealing device with non-fixed rotary shaft

A technology for rotary seals and mixer trucks, which is applied to cement mixing devices, clay preparation devices, chemical instruments and methods, etc. It can solve the problems of vulnerable parts, poor sealing effect, and high maintenance costs, so as to reduce wear, reduce weight, The effect of reducing workload and cost

Active Publication Date: 2019-02-22
YANTAI SHENGLIDA ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention proposes a rotary sealing device for a mixer truck with a non-fixed rotary shaft, the purpose of which is to solve the problems of vulnerable parts, poor sealing effect and high maintenance cost

Method used

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  • Mixer truck rotary sealing device with non-fixed rotary shaft
  • Mixer truck rotary sealing device with non-fixed rotary shaft
  • Mixer truck rotary sealing device with non-fixed rotary shaft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] like figure 1 , a rotary sealing device for a mixer truck with a non-fixed rotary shaft, the mixer truck includes a mixing bucket installed on the vehicle body and capable of rotating relative to the vehicle body, and a moving part installed on the vehicle body and capable of moving relative to the vehicle body 11. There is a rotary sealing cover 1, the outer edge of the rotary sealing cover 1 is in contact with the outer edge of the outlet of the mixing tank, and the contact is provided with a sealing outer ring, so that the rotary sealing cover 1 is driven by the mixing tank with stirring The barrel rotates relative to the moving part 11; a through hole is opened in the middle part of the rotating sealing cover 1; a feeding hopper 2 is installed on the moving part 11, and the outlet of the feeding hopper 2 is connected with a The cover 1 is through the hole and extends into the feeding cylinder 4 of the mixing bucket.

[0031] The rotary seal cover 1 includes a suppo...

Embodiment 2

[0042] like figure 2 The difference between this embodiment and the first embodiment is that there is a gap between the rear end of the central barrel 3 or the front end surface of the sealing inner ring 6 .

Embodiment 3

[0044] like image 3 The difference between this embodiment and Embodiment 1 is that the sealing mechanism is not an integral sealing inner ring 6, but a split structure, including a circumferential sealing ring 61 and an end face sealing ring 62, and the inner sealing ring 61 of the circumferential sealing ring The hole is in contact with the outer wall of the feeding barrel 4 , and the rear end of the central barrel 3 is in contact with the front end of the end face sealing ring 62 .

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PUM

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Abstract

The invention discloses a mixer truck rotary sealing device with a non-fixed rotary shaft. A mixer truck comprises a mixing tank, a moving part, a rotary sealing cover rotating along with the mixing tank, and a pressing mechanism; a through hole is formed in the middle of the rotary sealing cover; a support ring is arranged in the through hole; a feeding hopper is arranged on the moving part; a feeding cylinder penetrating through the through hole is connected to an outlet of the feeding hopper; a clearance is formed between the support ring and the outer wall of the feeding cylinder; a flexible sealing mechanism is fixedly arranged on the support ring, so that the sealing between the rotary sealing cover and the feeding cylinder is realized; a stirring ring is arranged on the outer wall of the feeding cylinder; and the moving part presses the rotary sealing cover to the tail part of the mixing tank through the pressing mechanism. According to the mixer truck rotary sealing device withthe non-fixed rotary shaft provided by the invention, the traditional thinking is broken, a rotary support device is removed, the problems such as damage and leakage of components brought by repetitive positioning are avoided, the later-period maintenance workload is reduced, and the cost is reduced.

Description

technical field [0001] The invention relates to a rotary sealing device applied to a concrete mixer truck. Background technique [0002] The mixing barrel of the traditional concrete mixer truck is open, which has many disadvantages such as poor weather resistance and driving safety, easy spillage, and poor passability. In 2010, the applicant proposed to invent the "Rotary Sealing Device for Mixing Drum of Concrete Mixer Truck", which solved the above problems at one stroke, but also brought problems such as heavy device weight, heavy maintenance, many wearing parts, and high replacement costs. [0003] The patent "Hollow Shaft Rotary Sealed Concrete Mixer Truck" applied for on August 29, 2017, with the announcement number CN107344401A, solved the above problems, but it brought new problems: the outer circle of the rotary sealing cover and the described The mixing barrel is in contact with each other and rotates with the mixing barrel. At the same time, the rotary sealing c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28C5/42
CPCB28C5/4262
Inventor 盛富春盛楠
Owner YANTAI SHENGLIDA ENG TECH
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