阅读说明：本技术 双排链交错轴从动轮机构 (Driven wheel mechanism with double-row chain and staggered shafts ) 是由 张琨 王辉 王开强 周环宇 巴鑫 邓雷 姚涛 吴全龙 宋万鹏 于 2020-12-30 设计创作，主要内容包括：本发明公开了一种双排链交错轴从动轮机构,包括支撑轴和支撑架,支撑轴的两端支撑固定在支撑架上,支撑轴的中部设有凸缘、两边交错成一定角度且两边分别配合有传动密封组件；传动密封组件包括套在支撑轴上的轴承、套在支撑轴上且将轴承轴向限位在中间的轴套、套在轴承上的从动轮、密封连接在从动轮两侧的动密封环、密封连接在支撑架和凸缘上的静密封环,从动轮内外侧的动密封环分别与凸缘和支撑架上的静密封环配合形成多层密封,动密封环通过第一密封圈密封的套在对应的轴套上。该机构避免了固体杂质和泥水进入传动部件,密封可靠,可以抵抗静压力。(The invention discloses a double-row chain staggered shaft driven wheel mechanism which comprises a supporting shaft and a supporting frame, wherein two ends of the supporting shaft are supported and fixed on the supporting frame, a flange is arranged in the middle of the supporting shaft, two sides of the supporting shaft are staggered to form a certain angle, and two sides of the supporting shaft are respectively matched with a transmission sealing assembly; the transmission sealing assembly comprises a bearing sleeved on the supporting shaft, a shaft sleeve sleeved on the supporting shaft and axially limiting the bearing in the middle, a driven wheel sleeved on the bearing, movable sealing rings and static sealing rings, wherein the movable sealing rings are connected to two sides of the driven wheel in a sealing mode, the static sealing rings are connected to the supporting frame and the flange in a sealing mode, the movable sealing rings on the inner side and the outer side of the driven wheel are respectively matched with the flange and the static sealing rings on the supporting frame to form multi-layer sealing, and the movable sealing rings are sleeved. The mechanism avoids solid impurities and muddy water from entering a transmission part, is reliable in sealing and can resist static pressure.)

1. The utility model provides a driven wheel mechanism of staggered axle of double row chain which characterized in that: the device comprises a supporting shaft and a supporting frame, wherein two ends of the supporting shaft are supported and fixed on the supporting frame, a flange is arranged in the middle of the supporting shaft, two sides of the supporting shaft are staggered to form a certain angle, and transmission sealing assemblies are respectively matched with the two sides of the supporting shaft; the transmission sealing assembly comprises a bearing sleeved on the supporting shaft, a shaft sleeve sleeved on the supporting shaft and axially limiting the bearing in the middle, a driven wheel sleeved on the bearing, movable sealing rings and static sealing rings, wherein the movable sealing rings are connected to two sides of the driven wheel in a sealing mode, the static sealing rings are connected to the supporting frame and the flange in a sealing mode, the movable sealing rings on the inner side and the outer side of the driven wheel are respectively matched with the flange and the static sealing rings on the supporting frame to form multi-layer sealing, and the movable sealing rings are sleeved.

2. The double-row chain interleaved shaft driven wheel mechanism according to claim 1, wherein: the movable sealing ring and the corresponding static sealing ring are matched to form three-layer sealing, the innermost layer adopts a second sealing ring, the static sealing ring is sleeved on the movable sealing ring through the sealing of the second sealing ring, the middle layer is a structure that the movable sealing ring and the static sealing ring are mutually meshed along the radial direction, the outermost layer adopts a third sealing ring, and the third sealing ring is axially compressed between the movable sealing ring and the static sealing ring.

3. The double-row chain interleaved shaft driven wheel mechanism according to claim 2, wherein: the third sealing ring is a V-shaped sealing ring.

4. The double-row chain interleaved shaft driven wheel mechanism according to claim 2, wherein: the first sealing ring and the second sealing ring are all made of check rings.

5. The double-row chain interleaved shaft driven wheel mechanism according to claim 1, wherein: in the transmission sealing assembly, a baffle ring is arranged in the middle of an inner ring of a driven wheel, a pair of bearings are respectively positioned on two sides of the baffle ring, and the bearings are axially limited through the baffle rings on the two sides and a shaft sleeve.

6. The double-row chain interleaved shaft driven wheel mechanism according to claim 5, wherein: the bearing adopts a single-row tapered roller bearing, and a pair of bearings are symmetrically arranged at two sides of the baffle ring.

7. The double-row chain interleaved shaft driven wheel mechanism according to claim 1, wherein: the tip of back shaft is flat head and supports on the support frame through the tang cooperation, and the tip of back shaft is equipped with the end plate, and the end plate card is put in the support frame outside, and the sealed end plate cover that is equipped with in the support frame outside, end plate cover on the end plate.

8. The double-row chain interleaved shaft driven wheel mechanism according to any of claims 1 to 7, wherein: the static sealing ring is respectively connected on the supporting frame and the flange in a sealing way through an O-shaped sealing ring.

Technical Field

The invention belongs to the field of construction machinery, and particularly relates to a double-row chain staggered shaft driven wheel mechanism.

Background

The underground continuous wall construction needs to be milled with a long and narrow deep groove through a groove milling machine, the traditional groove milling machine can only divide the groove into frames, therefore, seams exist and leakage hidden dangers exist, Chinese patent ZL201720064599.4 discloses a synchronous wall forming device for underground continuous wall sawing groove, a double-row chain continuous groove sawing mode is adopted, the leakage hidden dangers are solved, but the driven wheel mechanism of the device works in a severe underground environment, the sealing problem exists, once the sealing is unreliable, solid impurities and muddy water can enter a transmission part, and the service life and the using effect are influenced.

Disclosure of Invention

The invention aims to provide a double-row chain staggered shaft driven wheel mechanism which avoids solid impurities and muddy water from entering a transmission part, is reliable in sealing and can resist static pressure.

The technical scheme adopted by the invention is as follows:

a double-row chain staggered shaft driven wheel mechanism comprises a support shaft and a support frame, wherein two ends of the support shaft are supported and fixed on the support frame, a flange is arranged in the middle of the support shaft, two sides of the support shaft are staggered to form a certain angle, and transmission sealing assemblies are respectively matched with the two sides of the support shaft; the transmission sealing assembly comprises a bearing sleeved on the supporting shaft, a shaft sleeve sleeved on the supporting shaft and axially limiting the bearing in the middle, a driven wheel sleeved on the bearing, movable sealing rings and static sealing rings, wherein the movable sealing rings are connected to two sides of the driven wheel in a sealing mode, the static sealing rings are connected to the supporting frame and the flange in a sealing mode, the movable sealing rings on the inner side and the outer side of the driven wheel are respectively matched with the flange and the static sealing rings on the supporting frame to form multi-layer sealing, and the movable sealing rings are sleeved.

Furthermore, the movable sealing ring and the corresponding static sealing ring are matched to form three layers of sealing, the innermost layer adopts a second sealing ring, the static sealing ring is sleeved on the movable sealing ring through the sealing of the second sealing ring, the middle layer adopts a structure that the movable sealing ring and the static sealing ring are mutually meshed along the radial direction, the outermost layer adopts a third sealing ring, and the third sealing ring is axially compressed between the movable sealing ring and the static sealing ring.

Preferably, the third sealing ring is a V-shaped sealing ring.

Preferably, the first sealing ring and the second sealing ring both adopt a Gray ring.

Furthermore, in the transmission sealing assembly, a baffle ring is arranged in the middle of an inner ring of the driven wheel, a pair of bearings are respectively positioned on two sides of the baffle ring, and the bearings are axially limited through the baffle rings on the two sides and the shaft sleeve.

Preferably, the bearings are single-row tapered roller bearings, and a pair of bearings are symmetrically arranged on two sides of the baffle ring.

Furthermore, the end part of the supporting shaft is a flat head and is supported on the supporting frame through a spigot in a matched mode, an end plate is arranged at the end part of the supporting shaft and is clamped outside the supporting frame, an end plate cover is arranged on the outer side of the supporting frame in a sealed mode, and the end plate cover covers the end plate.

Preferably, the static sealing ring is hermetically connected to the supporting frame and the flange respectively through an O-shaped sealing ring.

The invention has the beneficial effects that:

the crisscross certain angle that becomes in both sides of back shaft can satisfy double-row chain and each other become certain angle and carry out the transmission, move the equal seal installation of sealing ring and quiet sealing ring, and it is sealed to move the multilayer between sealing ring and the quiet sealing ring, solid impurity and muddy water have been avoided getting into drive disk assembly, it is sealed reliable, in addition, it is sealed to move to have first sealing washer between sealing ring and the axle sleeve, sealing reliability has further been improved, and lie in groundwater and the surrounding of silt from driving wheel during operation, there is certain water pressure, static pressure can be resisted in setting up of quiet sealing ring.

Drawings

FIG. 1 is a schematic diagram of a driven wheel mechanism with a double-row chain staggered shaft according to an embodiment of the invention.

Fig. 2 is a plan view of the support shaft in the embodiment of the present invention.

FIG. 3 shows a spigot connection of the support bracket and the support shaft in an embodiment of the invention.

In the figure: 1-a flange; 2-driven wheel; 3-a support frame; 4-a baffle ring; 5-end plate cover; 6-supporting the shaft; 7-an end plate; 8-static sealing ring; 9-moving a sealing ring; 10-shaft sleeve; 11-a bearing; 12-a third sealing ring; 13-a first sealing ring; 14-a second sealing ring; 15-O type sealing ring.

Detailed Description

The invention is further described below with reference to the figures and examples.

As shown in fig. 1 and 2, a double-row chain staggered shaft driven wheel mechanism comprises a support shaft 6 and a support frame 3, wherein two ends of the support shaft 6 are supported and fixed on the support frame 3, a flange 1 is arranged in the middle of the support shaft 6, two sides of the support shaft are staggered to form a certain angle, and two sides of the support shaft are respectively matched with a transmission sealing assembly; the transmission sealing assembly comprises a bearing 11 sleeved on a support shaft 6, a shaft sleeve 10 sleeved on the support shaft 6 and axially limiting the bearing 11 in the middle, a driven wheel 2 sleeved on the bearing 11, movable sealing rings 9 hermetically connected to two sides of the driven wheel 2, and static sealing rings 8 hermetically connected to a support frame 3 and a flange 1, wherein the movable sealing rings 9 on the inner side and the outer side of the driven wheel 2 are respectively matched with the static sealing rings 8 on the flange 1 and the support frame 3 to form multi-layer sealing, and the movable sealing rings 9 are sleeved on the corresponding shaft sleeve 10 in a sealing manner through first sealing rings 13.

As shown in fig. 1, in this embodiment, the movable seal ring 9 and the corresponding stationary seal ring 8 cooperate to form three layers of seals, the innermost layer adopts the second seal ring 14, the stationary seal ring 8 is hermetically sleeved on the movable seal ring 9 through the second seal ring 14, the middle layer is a structure in which the movable seal ring 9 and the stationary seal ring 8 are engaged with each other along the radial direction, the outermost layer adopts the third seal ring 12, and the third seal ring 12 is axially compressed between the movable seal ring 9 and the stationary seal ring 8. The outermost third sealing ring 12 can resist the entrance of large solid impurities such as silt, the inter-meshed structure of the middle layer further resists the entrance of the solid impurities, and the innermost second sealing ring 14 can resist the entrance of external muddy water with pressure.

As shown in fig. 1, in the present embodiment, in the transmission seal assembly, a retaining ring 4 is disposed in the middle of an inner ring of a driven wheel 2, a pair of bearings 11 are respectively disposed on both sides of the retaining ring 4, the bearings 11 are axially limited by the retaining ring 4 and a shaft sleeve 10 on both sides, the bearings 11 are preferably single-row tapered roller bearings and symmetrically disposed on both sides of the retaining ring 4, and the bearings 11 are mounted in a manner that the inner ring is fixed and the outer ring floats, so that they can bear a considerable axial force.

As shown in fig. 1 and 3, in the present embodiment, the end of the support shaft 6 is a flat head and is supported on the support frame 3 through a spigot, the end of the support shaft 6 is provided with an end plate 7, the end plate 7 is clamped outside the support frame 3, the outside of the support frame 3 is hermetically provided with an end plate cover 5, and the end plate cover 5 covers the end plate 7. The end of the supporting shaft 6 is arranged to prevent rotation and prevent impurities from entering from the end.

In this embodiment, the first sealing ring and the second sealing ring both adopt a gurley ring, the third sealing ring adopts a V-shaped sealing ring, and the static sealing ring is respectively connected to the supporting frame and the flange through an O-shaped sealing ring.

The crisscross certain angle that becomes in both sides of back shaft 6 can satisfy double-row chain each other and become certain angle and carry out the transmission, move the equal seal installation of sealing ring 9 and quiet sealing ring 8, and it is sealed to move the multilayer between sealing ring 9 and the quiet sealing ring 8, solid impurity and muddy water entering drive disk assembly have been avoided, it is sealed reliable, in addition, it is sealed to move to have first sealing washer 13 between sealing ring 9 and the axle sleeve 10, sealing reliability has further been improved, and it is located groundwater and the surrounding of silt to follow driving wheel 2 during operation, there is certain water pressure, static pressure can be resisted in setting up of quiet sealing ring 8.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.