WO2022100375A1 - 一种搅拌桶中心筒固定的回转密封机构 - Google Patents

一种搅拌桶中心筒固定的回转密封机构 Download PDF

Info

Publication number
WO2022100375A1
WO2022100375A1 PCT/CN2021/124539 CN2021124539W WO2022100375A1 WO 2022100375 A1 WO2022100375 A1 WO 2022100375A1 CN 2021124539 W CN2021124539 W CN 2021124539W WO 2022100375 A1 WO2022100375 A1 WO 2022100375A1
Authority
WO
WIPO (PCT)
Prior art keywords
ring
sealing mechanism
rotary sealing
center cylinder
rotary
Prior art date
Application number
PCT/CN2021/124539
Other languages
English (en)
French (fr)
Inventor
盛富春
Original Assignee
山东精砼工程机械股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 山东精砼工程机械股份有限公司 filed Critical 山东精砼工程机械股份有限公司
Publication of WO2022100375A1 publication Critical patent/WO2022100375A1/zh

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
    • B28C5/4203—Details; Accessories
    • B28C5/4262—Closures; Sealing mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
    • F16J15/184—Tightening mechanisms

Definitions

  • the invention relates to a rotary sealing mechanism for a mixer truck.
  • the existing rotary sealing mechanism still has the problems of complex structure and difficult maintenance.
  • the present invention proposes a rotary sealing mechanism with the center cylinder of the mixing barrel fixed, and its purpose is to: (1) reduce the damage of the rotary sealing mechanism during driving; (2) improve the sealing effect; (3) simplify the operation of the rotary sealing mechanism structure.
  • a rotary sealing mechanism with a central cylinder of a mixing barrel fixed wherein a central cylinder is arranged in the mixing barrel, the central cylinder rotates synchronously with the mixing barrel, and the rotary sealing mechanism comprises a rotary sealing cover;
  • a through hole is opened in the middle of the rotary sealing cover, and the rear end of the central cylinder passes through the through hole and is located on the rear side of the rotary sealing cover;
  • the outer ring sealing mechanism is arranged between the outer edge of the rotary sealing cover and the rear end of the mixing barrel, so as to realize the sealing between the rotary sealing cover and the mixing barrel;
  • It also includes an inner ring sealing mechanism for realizing the sealing between the rotary sealing cover and the center cylinder, and the inner ring sealing mechanism is a sealing ring sleeved on the outside of the center cylinder;
  • the side wall of the tail end of the central cylinder is provided with a through hole for allowing the material to pass through.
  • the rear end of the central barrel is provided with an external thread
  • the pressing device is a pressing ring installed on the rear end of the central barrel through thread fit.
  • the pressing device is an elastic device fixed on the tail end of the central cylinder.
  • the pressing device is a hydraulic cylinder or an air cylinder.
  • the outer ring sealing mechanism includes an inner ring, a middle ring and an outer ring respectively arranged from the inside to the outside;
  • the hardness of the inner ring and the outer ring is higher than that of the middle ring.
  • the rear end of the mixing barrel is provided with a flange ring
  • the inner ring is sleeved on the rear end of the mixing barrel
  • the front ends of the inner ring, the middle ring and the outer ring are all connected to the rear of the flange ring. end-face contact
  • the outer edge of the rotary sealing cover is also provided with a surrounding ring extending forward, and the outer circular surface of the outer ring is in contact with the inner circular surface of the surrounding ring;
  • the rear end surfaces of the middle ring and the outer ring are in contact with the rotary sealing cover.
  • the outer ring sealing mechanism further includes a wear-resistant retaining ring, the wear-resistant retaining ring is located between the inner ring and the rotary sealing cover, and the outer circular surface is in contact with the inner circular surface of the middle ring.
  • annular hoop is arranged on the outer side of the outer ring sealing mechanism, and the annular hoop is used to tightly fix the outer ring sealing mechanism at the rear end of the mixing barrel.
  • the present invention Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention extends the central cylinder, passes through the rotary sealing cover, and compresses the rotary sealing cover through a pressing device, thereby rotating the sealing cover, the central cylinder and stirring The barrel forms a synchronous rotating whole. Even if there are bumps and deformations, the relative movement between the rotary sealing cover and the mixing barrel is very small, which will not cause damage to the sealing mechanism, solve the problem of concrete spillage, and prolong the sealing period. (2) The pressing device can be a pressing ring with a threaded structure, or a spring, a disc spring, a hydraulic cylinder or an air cylinder, etc.
  • the structure is simple, compact and easy to maintain; (3)
  • the outer ring sealing mechanism adopts a three-layer sealing structure, and the hardness of the inner ring and the outer ring is relatively high, which not only plays a certain sealing role and supports the middle ring, but also can protect the middle ring and reduce its impact.
  • a hollow overflow section is provided from the middle to the rear end of the center cylinder, which is mainly composed of multiple It can also be realized by opening multiple overflow holes on the center cylinder;
  • an annular hoop is arranged, which can compress the outer ring to improve the sealing effect. .
  • Figure 1 is a schematic structural diagram of the organization
  • Fig. 2 is the partial schematic diagram of A part among Fig. 1;
  • Fig. 3 is the partial schematic diagram when using the annular hoop to tighten the outer ring sealing mechanism
  • FIG. 4 is a schematic view of the structure of the tail end of the central barrel with the connecting column.
  • a rotary sealing mechanism in which the center cylinder of a mixing bucket is fixed, a center cylinder 2 is arranged in the mixing bucket 1 , and the center cylinder 2 rotates synchronously with the mixing bucket 1 .
  • the rotary sealing mechanism includes a rotary sealing cover 3 and an outer ring sealing mechanism 8 disposed between the outer edge of the rotary sealing cover 3 and the rear end of the mixing barrel 1 .
  • the outer ring sealing mechanism 8 is used to realize the sealing between the rotary sealing cover 3 and the mixing barrel 1 .
  • a through hole is opened in the middle of the rotary sealing cover 3 .
  • the rear end of the central barrel 2 passes through the through hole and is located at the rear side of the rotary sealing cover 3 .
  • the feeding barrel 7 to which the feeding hopper 4 is connected is inserted into the central barrel 2 from the rear side.
  • a through hole is provided from the middle to the last end of the central cylinder 2.
  • the through hole can be formed by using several connecting columns to connect the flanges, so as to form a through hole on the front side of the flange (between the connecting columns). The gap between them), the hollow structure can also be used directly.
  • the purpose of the passage hole is mainly to overflow, to draw out the sediment between the center cylinder 2 and the feed cylinder 7, and to avoid accumulation between the center cylinder 2 and the feed cylinder.
  • the rotary sealing mechanism further includes a pressing device for pushing the rotary sealing cover 3 forward and pressing the outer ring sealing mechanism 8 .
  • Implementation mode 1 of the pressing device the rear end of the central barrel 2 is provided with an external thread, and the pressing device is a pressing ring 6 installed on the rear end of the central barrel 2 through thread fit.
  • the pressing device is an elastic device fixed on the rear end of the central cylinder 2, such as a spring, a disc spring, a leaf spring, etc.
  • the rear end of the elastic device abuts on the central cylinder 2, and the front end and The rear end of the rotary seal cover 3 is kept in contact.
  • the third realization mode of the pressing device is a hydraulic cylinder or an air cylinder.
  • the rotary sealing mechanism further includes an inner ring sealing mechanism, and the inner ring sealing mechanism is used to realize the sealing between the rotary sealing cover 3 and the central cylinder 2 .
  • the inner ring sealing mechanism is a sealing ring 5 sleeved on the outer side of the central cylinder 2 .
  • the specific structure of the outer ring sealing mechanism 8 is as follows: it includes an inner ring 8-3, a middle ring 8-2 and an outer ring 8-1 which are respectively arranged from the inside to the outside.
  • the hardness of the inner ring 8-3 and the outer ring 8-1 is higher than that of the middle ring 8-2, and the three are self-consumable sealing devices, which allow loss when the mixing barrel rotates.
  • the rear end of the mixing barrel 1 is provided with a flange ring 1-1
  • the inner ring 8-3 is sleeved on the rear end of the mixing barrel 1, the inner ring 8-3, the middle ring 8-2 and the outer ring 8
  • the front end of -1 is in contact with the rear end face of the flange ring 1-1;
  • the outer edge of the rotary sealing cover 3 is also provided with a surrounding ring 3-1 extending forward, and the outer circular surface of the outer ring 8-1 contacts the inner circular surface of the surrounding ring 3-1; the middle ring 8-1 is in contact with the inner circular surface of the surrounding ring 3-1; -2 and the rear end surfaces of the outer ring 8-1 are in contact with the rotary seal cover 3.
  • the surrounding ring 3-1 and the flange ring 1-1 play a supporting role for the outer ring sealing mechanism 8 and achieve sealing by being in close contact with the outer ring sealing mechanism 8 .
  • the outer ring sealing mechanism 8 also includes a wear-resistant retaining ring 8-4, the wear-resistant retaining ring 8-4 is located between the inner ring 8-3 and the rotary sealing cover 3, and the outer circular surface is connected to the middle ring 8-4. 2 are in contact with the inner circle.
  • middle ring 8-2 is also provided with structures such as oil grooves and concave cavities for storing lubricating oil.
  • the outer circumference of the inner ring 8-3 is provided with longitudinal and transverse oil grooves for storing and transmitting lubricating medium.
  • the main functions of the inner ring 8-3 are: 1. Protect the soft middle ring 8-2 from the wear of the sealing medium; 2. Play a certain sealing role; 3. Play a supporting and positioning role for the rotary sealing cover 3, 4. Prevent the lubricating medium from entering the sealed medium.
  • the function of the outer ring 8-1 is mainly to prevent the leakage of the lubricating medium and protect the outer circular part of the middle ring 8-2 to reduce wear.
  • the outer ring 8-1 and the soft middle ring 8-2 can be bonded together in advance, and then fixed to the surrounding ring 3-1.
  • the outer ring sealing mechanism 8 and the inner ring sealing mechanism are compressed by the pressing device to realize the sealing of the rotary sealing cover 3 with the mixing drum 1 and the center cylinder 2.
  • the relative movement between the sealing cover 3 and the mixing drum 1 is also very small, which will not cause damage to the sealing mechanism, solve the problem of concrete spillage, prolong the life of the sealing device, improve the heat preservation and moisture retention, and ensure the quality of concrete.
  • annular hoop 9 is provided on the outer side of the outer ring sealing mechanism 8 , and the broken part of the annular hoop 9 is tightened by bolts, so as to seal the outer ring
  • the mechanism 8 is fixed at the rear end of the mixing barrel 1 .
  • the surrounding ring 3-1 is located on the outer side of the annular hoop 9 and does not directly contact the outer circular surface of the outer ring 8-1.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Accessories For Mixers (AREA)

Abstract

本发明公开了一种搅拌桶中心筒固定的回转密封机构，搅拌桶中设有中心筒，中心筒跟随搅拌桶同步旋转，回转密封机构包括回转密封盖；回转密封盖中部开设有通孔，中心筒的尾端穿过该通孔且位于回转密封盖的后侧；还包括外圈密封机构，外圈密封机构设置在回转密封盖的外边缘与搅拌桶的尾端之间，实现回转密封盖与搅拌桶之间的密封；还包括压紧装置，用于向前推动回转密封盖、压紧外圈密封机构；还包括内圈密封机构，内圈密封机构用于实现回转密封盖与中心筒之间的密封。本发明解决了混凝土的撒漏问题，延长了密封装置的寿命，提高了保温性和保湿性，保证了混凝土的质量，同时还具有结构简单、维护方便的优点。

Description

一种搅拌桶中心筒固定的回转密封机构 技术领域
本发明涉及一种用于搅拌车的回转密封机构。
 背景技术
搅拌车装料状态下行走时，搅拌桶会出现颠簸，并且受外力作用，搅拌桶尾端的密封盖和回转密封机构会出现变形、松弛乃至缝隙，从而影响密封效果。颠簸和变形还会对回转密封机构造成损伤，从而造成撒漏、使用寿命短等问题。
另一方面，现有的回转密封机构还存在结构复杂，维护难度大的问题。
 技术问题
本发明提出了一种搅拌桶中心筒固定的回转密封机构，其目的是：（1）减少回转密封机构在行驶过程中受到的损伤；（2）提高密封效果；（3）简化回转密封机构的结构。
 技术解决方案
本发明技术方案如下：
一种搅拌桶中心筒固定的回转密封机构，搅拌桶中设有中心筒，所述中心筒跟随搅拌桶同步旋转，回转密封机构包括回转密封盖；
所述回转密封盖中部开设有通孔，所述中心筒的尾端穿过该通孔且位于所述回转密封盖的后侧；
还包括外圈密封机构，所述外圈密封机构设置在回转密封盖的外边缘与搅拌桶的尾端之间，实现回转密封盖与搅拌桶之间的密封；
还包括压紧装置，用于向前推动所述回转密封盖、压紧所述外圈密封机构；
还包括内圈密封机构，用于实现回转密封盖与中心筒之间的密封，所述内圈密封机构为套装在中心筒外侧的密封环；
所述的中心筒尾端侧壁上设有用于使物料通过的通过孔。
作为本机构的进一步改进：所述中心筒的尾端设有外螺纹，所述压紧装置为通过螺纹配合安装在中心筒尾端上的压紧环。
作为本机构的进一步改进：所述压紧装置为固定在中心筒尾端上的弹性装置。
作为本机构的进一步改进：所述压紧装置液压缸或气缸。
作为本机构的进一步改进：所述外圈密封机构包括由内向外分别设置的内环、中环和外环；
所述内环和外环的硬度均高于中环的硬度。
作为本机构的进一步改进：所述搅拌桶的尾端设有法兰环，所述内环套装在搅拌桶的尾端，内环、中环和外环的前端均与所述法兰环的后端面接触；
所述回转密封盖的外边缘还设有向前伸出的围环，所述外环的外圆面与围环的内圆面接触；
所述中环和外环的后端面与所述回转密封盖接触。
作为本机构的进一步改进：所述外圈密封机构还包括耐磨护环，所述耐磨护环位于内环与回转密封盖之间，且外圆面与所述中环的内圆面接触。
作为本机构的进一步改进：所述外圈密封机构的外侧设有环形箍，所述环形箍用于将外圈密封机构紧密的定在搅拌桶的尾端。
 有益效果
相对于现有技术，本发明具有以下有益效果：（1）本发明通过将中心筒加长、穿过回转密封盖，并通过压紧装置压紧回转密封盖，从而回转密封盖、中心筒和搅拌桶组成了一个同步回转的整体，即使出现颠簸和变形，回转密封盖与搅拌桶之间的相对移动也是很小的，不会对密封机构造成损伤，解决了混凝土的撒漏问题，延长了密封装置的寿命，提高了保温性和保湿性，保证了混凝土的质量；（2）压紧装置可以是带有螺纹结构的压紧环，也可以是弹簧、碟簧、液压缸或气缸等装置，结构简单、紧凑，维护方便；（3）外圈密封机构采用三层密封式结构，内环和外环的硬度较高，不仅起到一定的密封作用以及支撑中环，而且还能够保护中环减少其损耗；（4）为了将进入中心筒内部的泥浆排出，尽量的避免泥沙在中心筒内的积淀，在中心筒的中部到后端部设置有镂空的溢流段，它主要是由多个连接柱组成，也可以是在中心筒上开设多个溢流孔的方式来实现；（5）在搅拌桶回转密封的三重的外环外，设置有环形箍，可以压紧外环提高密封效果。
 附图说明
图1为本机构的结构示意图；
图2为图1中A部分的局部示意图；
图3为使用环形箍拉紧外圈密封机构时的局部示意图；
图4为带有连接柱的中心筒尾端的结构示意图。
 本发明的实施方式
下面结合附图详细说明本发明的技术方案：
如图1，一种搅拌桶中心筒固定的回转密封机构，搅拌桶1中设有中心筒2，所述中心筒2跟随搅拌桶1同步旋转。
所述回转密封机构包括回转密封盖3以及设置在回转密封盖3的外边缘与搅拌桶1的尾端之间的外圈密封机构8。所述外圈密封机构8用于实现回转密封盖3与搅拌桶1之间的密封。
所述回转密封盖3中部开设有通孔。所述中心筒2的尾端穿过该通孔且位于所述回转密封盖3的后侧。进料斗4所连接的进料筒7从后侧插入所述中心筒2。
进一步的，如图4，在中心筒2的中部到最后末端设有通过孔，该通过孔的形成可以是使用几根连接柱连接法兰，从而在法兰前侧构成通过孔（连接柱之间的空隙），也可以直接采用镂空结构。通过孔的目的主要是溢流，将中心筒2与进料筒7之间的泥沙引出，避免在中心筒2和进料筒之间积淀。
所述回转密封机构还包括压紧装置，用于向前推动所述回转密封盖3、压紧所述外圈密封机构8。
压紧装置的实现方式一：所述中心筒2的尾端设有外螺纹，所述压紧装置为通过螺纹配合安装在中心筒2尾端上的压紧环6。
压紧装置的实现方式二：所述压紧装置为固定在中心筒2尾端上的弹性装置，如弹簧、碟簧、板簧等，弹性装置的后端抵在中心筒2上，前端与回转密封盖3的后端保持接触。
压紧装置的实现方式三：所述压紧装置液压缸或气缸。
所述回转密封机构还包括内圈密封机构，所述内圈密封机构用于实现回转密封盖3与中心筒2之间的密封。本实施例中，所述内圈密封机构为套装在中心筒2外侧的密封环5。
如图2，所述外圈密封机构8的具体结构为：包括由内向外分别设置的内环8-3、中环8-2和外环8-1。
所述内环8-3和外环8-1的硬度均高于中环8-2的硬度，三者为自耗式密封装置，允许在搅拌桶转动时出现损耗。
进一步的，所述搅拌桶1的尾端设有法兰环1-1，所述内环8-3套装在搅拌桶1的尾端，内环8-3、中环8-2和外环8-1的前端均与所述法兰环1-1的后端面接触；
所述回转密封盖3的外边缘还设有向前伸出的围环3-1，所述外环8-1的外圆面与围环3-1的内圆面接触；所述中环8-2和外环8-1的后端面与所述回转密封盖3接触。围环3-1和法兰环1-1对外圈密封机构8起到支撑作用，并通过与外圈密封机构8紧密接触实现密封。
所述外圈密封机构8还包括耐磨护环8-4，所述耐磨护环8-4位于内环8-3与回转密封盖3之间，且外圆面与所述中环8-2的内圆面接触。
进一步的，中环8-2上还开设有存储润滑油的油槽和凹腔等结构。在内环8-3的外圆设置有纵向和横向的用于储存和传导润滑介质的油槽。
内环8-3的作用主要有：1、保护软质的中环8-2免受密封介质的磨损；2、起到一定的密封作用；3、起到对回转密封盖3的支撑定位作用，4、防止润滑介质进入到被密封介质里。
外环8-1的作用主要是防止润滑介质外泄和保护中环8-2的外圆部分减少磨损。
为了增强密封效果，提高使用寿命，可以将外环8-1和软质中环8-2提前粘结在一起，再固定到围环3-1里。
车辆行驶时，通过压紧装置将外圈密封机构8和内圈密封机构压紧，实现回转密封盖3与搅拌桶1和中心筒2的密封，三者成为一体，即使出现颠簸和变形，回转密封盖3与搅拌桶1之间的相对移动也是很小的，不会对密封机构造成损伤，解决了混凝土的撒漏问题，延长了密封装置的寿命，提高了保温性和保湿性，保证了混凝土的质量。
实施例二
如图3，本实施例与实施例一的不同之处在于，所述外圈密封机构8的外侧设有环形箍9，环形箍9的断开处使用螺栓进行拉紧，从而将外圈密封机构8固定在搅拌桶1的尾端。使用结构时，围环3-1位于环形箍9的外侧，不与外环8-1的外圆面直接接触。

Claims (10)

  1. 一种搅拌桶中心筒固定的回转密封机构，搅拌桶（1）中设有中心筒（2），所述中心筒（2）跟随搅拌桶（1）同步旋转，其特征在于：回转密封机构包括回转密封盖（3）；
    所述回转密封盖（3）中部开设有通孔，所述中心筒（2）的尾端穿过该通孔且位于所述回转密封盖（3）的后侧；
    还包括外圈密封机构（8），所述外圈密封机构（8）设置在回转密封盖（3）的外边缘与搅拌桶（1）的尾端之间，实现回转密封盖（3）与搅拌桶（1）之间的密封；
    还包括压紧装置，用于向前推动所述回转密封盖（3）、压紧所述外圈密封机构（8）；
    还包括内圈密封机构，所述内圈密封机构用于实现回转密封盖（3）与中心筒（2）之间的密封。
  2. 如权利要求1所述的搅拌桶中心筒固定的回转密封机构，其特征在于：所述中心筒（2）的尾端设有外螺纹，所述压紧装置为通过螺纹配合安装在中心筒（2）尾端上的压紧环（6）。
  3. 如权利要求1所述的搅拌桶中心筒固定的回转密封机构，其特征在于：所述压紧装置为固定在中心筒（2）尾端上的弹性装置。
  4. 如权利要求1所述的搅拌桶中心筒固定的回转密封机构，其特征在于：所述压紧装置液压缸或气缸。
  5. 如权利要求1所述的搅拌桶中心筒固定的回转密封机构，其特征在于：所述外圈密封机构（8）包括由内向外分别设置的内环（8-3）、中环（8-2）和外环（8-1）；
    所述内环（8-3）和外环（8-1）的硬度均高于中环（8-2）的硬度。
  6. 如权利要求5所述的搅拌桶中心筒固定的回转密封机构，其特征在于：所述搅拌桶（1）的尾端设有法兰环（1-1），所述内环（8-3）套装在搅拌桶（1）的尾端，内环（8-3）、中环（8-2）和外环（8-1）的前端均与所述法兰环（1-1）的后端面接触；
    所述回转密封盖（3）的外边缘还设有向前伸出的围环（3-1），所述外环（8-1）的外圆面与围环（3-1）的内圆面接触；
    所述中环（8-2）和外环（8-1）的后端面与所述回转密封盖（3）接触。
  7. 如权利要求6所述的搅拌桶中心筒固定的回转密封机构，其特征在于：所述外圈密封机构（8）还包括耐磨护环（8-4），所述耐磨护环（8-4）位于内环（8-3）与回转密封盖（3）之间，且外圆面与所述中环（8-2）的内圆面接触。
  8. 如权利要求1所述的搅拌桶（1）中心筒（2）固定的回转密封机构，其特征在于：所述的中心筒（2）尾端侧壁上设有用于使物料通过的通过孔。
  9. 如权利要求1所述的搅拌桶（1）中心筒（2）固定的回转密封机构，其特征在于：所述外圈密封机构（8）的外侧设有环形箍（9），所述环形箍（9）用于将外圈密封机构（8）紧密的定在搅拌桶（1）的尾端。
  10. 如权利要求1至8任一所述的搅拌桶中心筒固定的回转密封机构，其特征在于：所述内圈密封机构为套装在中心筒（2）外侧的密封环（5）。
PCT/CN2021/124539 2020-11-12 2021-10-19 一种搅拌桶中心筒固定的回转密封机构 WO2022100375A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011262479.8A CN112497503A (zh) 2020-11-12 2020-11-12 一种搅拌桶中心筒固定的回转密封机构
CN202011262479.8 2020-11-12

Publications (1)

Publication Number Publication Date
WO2022100375A1 true WO2022100375A1 (zh) 2022-05-19

Family

ID=74956253

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/124539 WO2022100375A1 (zh) 2020-11-12 2021-10-19 一种搅拌桶中心筒固定的回转密封机构

Country Status (2)

Country Link
CN (1) CN112497503A (zh)
WO (1) WO2022100375A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112497503A (zh) * 2020-11-12 2021-03-16 山东精砼工程机械股份有限公司 一种搅拌桶中心筒固定的回转密封机构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195755A (en) * 1989-12-25 1993-03-23 Eagle Industry Co., Ltd. Shaft seal for slurry pumps
CN108858783A (zh) * 2018-09-18 2018-11-23 烟台盛利达工程技术有限公司 搅拌车回转密封系统
CN111283874A (zh) * 2020-04-10 2020-06-16 烟台盛利达工程技术有限公司 一种摆转式回转密封系统
CN111546496A (zh) * 2020-05-13 2020-08-18 山东精砼工程机械股份有限公司 轻量化免维护的回转密封装置
CN112497503A (zh) * 2020-11-12 2021-03-16 山东精砼工程机械股份有限公司 一种搅拌桶中心筒固定的回转密封机构
CN213575530U (zh) * 2020-11-12 2021-06-29 山东精砼工程机械股份有限公司 一种搅拌桶中心筒固定的回转密封机构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202764021U (zh) * 2012-09-17 2013-03-06 盛富春 混凝土搅拌运输车的搅拌筒进出料口回转密封机构
CN207213139U (zh) * 2017-08-02 2018-04-10 慈溪市春潮密封件有限公司 一种双环式密封垫片
CN109366736B (zh) * 2018-12-14 2023-08-01 烟台盛利达工程技术有限公司 非固定回转轴的搅拌车回转密封装置
CN109624087B (zh) * 2019-01-29 2023-12-29 烟台盛利达工程技术有限公司 一体式回转密封系统
CN111168856A (zh) * 2020-03-20 2020-05-19 山东精砼工程机械股份有限公司 集成式回转密封装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195755A (en) * 1989-12-25 1993-03-23 Eagle Industry Co., Ltd. Shaft seal for slurry pumps
CN108858783A (zh) * 2018-09-18 2018-11-23 烟台盛利达工程技术有限公司 搅拌车回转密封系统
CN111283874A (zh) * 2020-04-10 2020-06-16 烟台盛利达工程技术有限公司 一种摆转式回转密封系统
CN111546496A (zh) * 2020-05-13 2020-08-18 山东精砼工程机械股份有限公司 轻量化免维护的回转密封装置
CN112497503A (zh) * 2020-11-12 2021-03-16 山东精砼工程机械股份有限公司 一种搅拌桶中心筒固定的回转密封机构
CN213575530U (zh) * 2020-11-12 2021-06-29 山东精砼工程机械股份有限公司 一种搅拌桶中心筒固定的回转密封机构

Also Published As

Publication number Publication date
CN112497503A (zh) 2021-03-16

Similar Documents

Publication Publication Date Title
WO2022100375A1 (zh) 一种搅拌桶中心筒固定的回转密封机构
WO2019042480A1 (zh) 中空轴回转密封的混凝土搅拌运输车
CN109366736B (zh) 非固定回转轴的搅拌车回转密封装置
CN206598192U (zh) 磨床主轴高压气封结构
WO2020155896A1 (zh) 一体式回转密封系统
WO2020000417A1 (zh) 防偏磨柱塞滑靴组件、柱塞泵及柱塞马达
WO2021203943A1 (zh) 一种摆转式回转密封系统
WO2021197093A1 (zh) 一种出料装置及多功能搅拌车
CN213575530U (zh) 一种搅拌桶中心筒固定的回转密封机构
CN105134826A (zh) 一种湿式多片行车制动器
CN204512422U (zh) 一种新型浆料干燥机轴端密封装置
CN104339451A (zh) 一种用于搅拌运输车的回转支承结构及搅拌运输车
CN103967938B (zh) 一种汽车轮毂轴承单元密封件
CN210859811U (zh) 一种立磨磨辊轴与磨机壳体的密封装置
CN201902563U (zh) 内外双层双端面焊接金属波纹管集装式机械密封装置
CN209340465U (zh) 铁路机车新型涨紧式油塞
CN209379110U (zh) 一种湿式球磨机进料装置
CN210715253U (zh) 渣浆泵的泵头结构及渣浆泵
US2545485A (en) Seal and water inlet for charging and discharging chutes of truck mixers
CN104786740A (zh) 一种驱动桥加放油塞结构及汽车
CN205152702U (zh) 一种用于压力筛的密封装置
JP2000018290A (ja) ブレーキ装置
CN213575521U (zh) 一种改进的搅拌器机械密封
CN209539833U (zh) 一种轮毂轴承的双锁紧结构
CN219639434U (zh) 一种拉链机头轮轴封装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21890902

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21890902

Country of ref document: EP

Kind code of ref document: A1