CN201818668U - A cantilever shaft support device - Google Patents

A cantilever shaft support device Download PDF

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Publication number
CN201818668U
CN201818668U CN2010205287787U CN201020528778U CN201818668U CN 201818668 U CN201818668 U CN 201818668U CN 2010205287787 U CN2010205287787 U CN 2010205287787U CN 201020528778 U CN201020528778 U CN 201020528778U CN 201818668 U CN201818668 U CN 201818668U
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China
Prior art keywords
bearing
rolling bearings
sleeve
shaft
ring
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Expired - Lifetime
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CN2010205287787U
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Chinese (zh)
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李凌丰
刘际轩
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Zhejiang University ZJU
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Zhejiang University ZJU
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Abstract

The utility model provides a cantilever shaft support device which comprises a shaft, a bearing support, a bearing cover, at least four rolling bearings, two sleeves, two seal rings and two compression rings, wherein the rolling bearings are positioned inside the bearing support, the inner rings of the rolling bearings are closely fixed to the shaft, the outer rings of the rolling bearings are closely fixed to the bearing support, two radial through-holes are formed on the bearing support and positioned on the same plane and perpendicular to each other, the two radial through-holes are positioned at the end part of the rolling bearings and communicated with the inner cavities of the rolling bearings, a first gap is formed between the first sleeve and the end surfaces of the rolling bearings, and a second gap is formed between the bearing cover and the end surfaces of the rolling bearings. Since the lubricating oil enters the rolling bearings through the two through-holes on the bearing support, the cantilever shaft support device maintains the advantages of the present support device, has strong load-carrying ability and less frictional loss, ensures that the lubrication is convenient and rapid, and achieves the continuous lubrication.

Description

一种悬臂轴支撑装置 A cantilever shaft support device

技术领域technical field

本实用新型涉及一种承载载荷的悬臂轴支撑装置。The utility model relates to a load-carrying cantilever shaft supporting device.

背景技术Background technique

悬臂轴支撑装置在机械设备、冶金、水电水利、矿山机械、铁路、建筑机械、钢铁、包装、石化、仪器仪表、精密仪器等多个领域广泛使用。目前使用的悬臂轴支撑装置主要包括用于支撑的轴承座、作为悬臂的轴和轴承,轴承润滑时总是需要将轴承拆下润滑,非常的不方便。而且大多数的轴承承载能力都是很有限的,对于一些存在瞬时冲击载荷的场所,轴承的寿命往往大打折扣。Cantilever shaft support devices are widely used in many fields such as mechanical equipment, metallurgy, hydropower and water conservancy, mining machinery, railways, construction machinery, steel, packaging, petrochemical, instrumentation, and precision instruments. The currently used cantilever shaft supporting device mainly includes a bearing seat for support, a cantilever shaft and a bearing. When lubricating the bearing, it is always necessary to remove the bearing for lubrication, which is very inconvenient. Moreover, most of the bearing capacity is very limited, and for some places where there are instantaneous impact loads, the service life of the bearings is often greatly reduced.

发明内容Contents of the invention

为了克服轴承润滑的不方便,以及承载瞬时载荷能力不足的缺陷,本实用新型的目的是提供一种不仅润滑极为方便,而且承受瞬时载荷能力也大大加强的悬臂轴支撑装置。In order to overcome the inconvenience of bearing lubrication and the shortcoming of insufficient instantaneous load capacity, the purpose of this utility model is to provide a cantilever shaft support device which is not only extremely convenient for lubrication, but also has a greatly enhanced ability to withstand instantaneous load.

本实用新型的悬臂轴支撑装置,包括轴、轴承座、轴承盖、至少四个滚动轴承、两个套筒、两个密封圈和两个压环。滚动轴承位于轴承座内,滚动轴承的内圈与轴紧固,外圈与轴承座紧固,轴承座上开有两个处于同一平面、相互垂直的径向通孔,两个径向通孔位于滚动轴承的端部,并与滚动轴承的内腔连通,在轴承座的一侧安装有第一套筒,第一套筒的内圈与轴紧固,外圈与轴承座相对转动,第一套筒与轴承座之间设有第一密封圈,第一密封圈通过第一压环轴向压紧,在第一套筒与滚动轴承的端面有间隙;轴承座的另一侧安装有第二套筒,第二套筒的内圈与轴紧固,外圈与轴承盖相对转动,第二套筒与轴承盖之间设有第二密封圈,第二密封圈通过第二压环轴向压紧,在轴承盖与滚动轴承的端面有间隙。The cantilever shaft supporting device of the utility model includes a shaft, a bearing seat, a bearing cover, at least four rolling bearings, two sleeves, two sealing rings and two pressing rings. The rolling bearing is located in the bearing seat. The inner ring of the rolling bearing is fastened to the shaft, and the outer ring is fastened to the bearing seat. There are two radial through holes on the same plane and perpendicular to each other on the bearing seat. The two radial through holes are located in the rolling bearing The end of the bearing is connected with the inner cavity of the rolling bearing. A first sleeve is installed on one side of the bearing seat. The inner ring of the first sleeve is fastened to the shaft, and the outer ring rotates relative to the bearing seat. The first sleeve and There is a first sealing ring between the bearing seats, the first sealing ring is pressed axially by the first pressure ring, and there is a gap between the first sleeve and the end face of the rolling bearing; the second sleeve is installed on the other side of the bearing seat, The inner ring of the second sleeve is fastened to the shaft, and the outer ring and the bearing cover rotate relatively. A second sealing ring is arranged between the second sleeve and the bearing cover, and the second sealing ring is axially compressed by the second pressure ring. There is a gap between the bearing cover and the end face of the rolling bearing.

本实用新型的悬臂轴支撑装置,润滑油通过轴承座上的两个通孔进入滚动轴承,这样即使工作状态下也可以进行润滑,同时滚动轴承两端的间隙,可以保证滚珠轴承外沿的完全润滑。使用至少四个滚动轴承不仅可以使承载能力大大增强,同时使轴承座在承受瞬时冲击载荷实现一定程度的缓冲,大大增强了滚动轴承的承载能力。In the cantilever shaft support device of the utility model, the lubricating oil enters the rolling bearing through two through holes on the bearing seat, so that it can be lubricated even in the working state, and at the same time, the gap between the two ends of the rolling bearing can ensure the complete lubrication of the outer edge of the ball bearing. The use of at least four rolling bearings can not only greatly enhance the bearing capacity, but also enable the bearing housing to achieve a certain degree of buffering when subjected to instantaneous impact loads, greatly enhancing the bearing capacity of the rolling bearings.

本实用新型结构简单,润滑方便快捷,可实现连续润滑;轴向承载能力大大增强,轴承的疲劳寿命也会大大增加;单侧支撑时,能承受较大的径向力,稳定性好。The utility model has the advantages of simple structure, convenient and fast lubrication, and can realize continuous lubrication; the axial bearing capacity is greatly enhanced, and the fatigue life of the bearing will also be greatly increased; when supported on one side, it can bear large radial force and has good stability.

附图说明Description of drawings

图1为本实用新型的悬臂轴支撑装置示意图。Fig. 1 is a schematic diagram of a cantilever shaft supporting device of the present invention.

图2为轴承座示意图,其中图a为轴向剖面图,图b是图a的A向视图。Figure 2 is a schematic diagram of the bearing seat, in which Figure a is an axial sectional view, and Figure b is a view along the direction A of Figure a.

图中:1.轴,2.轴承座,3.轴承盖,4.滚动轴承,5.第一套筒,6.第二套筒,7.第一密封圈,8.第二密封圈,9.第一压环,10.第二压环,11、12.分别为径向通孔,13、14.分别为间隙。In the figure: 1. shaft, 2. bearing housing, 3. bearing cover, 4. rolling bearing, 5. first sleeve, 6. second sleeve, 7. first sealing ring, 8. second sealing ring, 9 . The first pressure ring, 10. The second pressure ring, 11, 12. are respectively radial through holes, and 13, 14. are respectively gaps.

具体实施方式Detailed ways

以下结合附图对本实用新型作进一步详细描述。Below in conjunction with accompanying drawing, the utility model is described in further detail.

参照图1、图2,本实用新型的悬臂轴支撑装置,包括轴1、轴承座2、轴承盖3、至少四个滚动轴承4、两个套筒5、6、两个密封圈7、8和两个压环9、10。滚动轴承4位于轴承座2内,滚动轴承4的内圈与轴1紧固,外圈与轴承座2紧固,轴承座2上开有两个处于同一平面、相互垂直的径向通孔11、12,两个径向通孔11、12位于滚动轴承4的端部,并与滚动轴承4的内腔连通,在轴承座2的一侧安装有第一套筒5,第一套筒5的内圈与轴紧固,外圈与轴承座2相对转动,第一套筒5与轴承座2之间设有第一密封圈7,第一密封圈7通过第一压环9轴向压紧,在第一套筒5与滚动轴承4的端面有间隙13;轴承座2的另一侧安装有第二套筒6,第二套筒6的内圈与轴紧固,外圈与轴承盖3相对转动,第二套筒6与轴承盖3之间设有第二密封圈8,第二密封圈8通过第二压环10轴向压紧,在轴承盖3与滚动轴承4的端面有间隙14。Referring to Fig. 1 and Fig. 2, the cantilever shaft support device of the present invention includes a shaft 1, a bearing housing 2, a bearing cover 3, at least four rolling bearings 4, two sleeves 5, 6, two sealing rings 7, 8 and Two pressure rings 9,10. The rolling bearing 4 is located in the bearing seat 2. The inner ring of the rolling bearing 4 is fastened to the shaft 1, and the outer ring is fastened to the bearing seat 2. The bearing seat 2 is provided with two radial through holes 11, 12 on the same plane and perpendicular to each other. , two radial through holes 11, 12 are located at the end of the rolling bearing 4, and communicate with the inner cavity of the rolling bearing 4, a first sleeve 5 is installed on one side of the bearing seat 2, and the inner ring of the first sleeve 5 is connected with the inner ring of the rolling bearing 4. The shaft is fastened, the outer ring and the bearing seat 2 rotate relatively, and the first sealing ring 7 is arranged between the first sleeve 5 and the bearing seat 2, and the first sealing ring 7 is axially compressed by the first pressure ring 9. There is a gap 13 between a sleeve 5 and the end face of the rolling bearing 4; a second sleeve 6 is installed on the other side of the bearing seat 2, the inner ring of the second sleeve 6 is fastened to the shaft, and the outer ring and the bearing cover 3 rotate relatively. A second sealing ring 8 is arranged between the second sleeve 6 and the bearing cover 3 , and the second sealing ring 8 is axially compressed by the second pressing ring 10 , and there is a gap 14 between the bearing cover 3 and the end surface of the rolling bearing 4 .

Claims (1)

1.一种悬臂轴支撑装置,其特征在于包括轴(1)、轴承座(2)、轴承盖(3)、至少四个滚动轴承(4)、两个套筒(5、6)、两个密封圈(7、8)和两个压环(9、10),滚动轴承(4)位于轴承座(2)内,滚动轴承(4)的内圈与轴(1)紧固,外圈与轴承座(2)紧固,轴承座(2)上开有两个处于同一平面、相互垂直的径向通孔(11、12),两个径向通孔(11、12)位于滚动轴承(4)的端部,并与滚动轴承(4)的内腔连通,在轴承座(2)的一侧安装有第一套筒(5),第一套筒(5)的内圈与轴紧固,外圈与轴承座(2)相对转动,第一套筒(5)与轴承座(2)之间设有第一密封圈(7),第一密封圈(7)通过第一压环(9)轴向压紧,在第一套筒(5)与滚动轴承(4)的端面有间隙(13);轴承座(2)的另一侧安装有第二套筒(6),第二套筒(6)的内圈与轴紧固,外圈与轴承盖(3)相对转动,第二套筒(6)与轴承盖(3)之间设有第二密封圈(8),第二密封圈(8)通过第二压环(10)轴向压紧,在轴承盖(3)与滚动轴承(4)的端面有间隙(14)。 1. A cantilever shaft support device, characterized in that it comprises a shaft (1), a bearing seat (2), a bearing cover (3), at least four rolling bearings (4), two sleeves (5, 6), two Sealing rings (7, 8) and two pressure rings (9, 10), the rolling bearing (4) is located in the bearing seat (2), the inner ring of the rolling bearing (4) is fastened to the shaft (1), and the outer ring and the bearing seat (2) Tightening, two radial through holes (11, 12) on the same plane and perpendicular to each other are opened on the bearing seat (2), and the two radial through holes (11, 12) are located in the rolling bearing (4) end, and communicate with the inner cavity of the rolling bearing (4), the first sleeve (5) is installed on one side of the bearing seat (2), the inner ring of the first sleeve (5) is fastened to the shaft, and the outer ring Rotate relative to the bearing seat (2), a first sealing ring (7) is provided between the first sleeve (5) and the bearing seat (2), and the first sealing ring (7) passes through the shaft of the first pressing ring (9) There is a gap (13) between the first sleeve (5) and the end face of the rolling bearing (4); the second sleeve (6) is installed on the other side of the bearing housing (2), and the second sleeve (6 The inner ring of ) is fastened to the shaft, the outer ring and the bearing cap (3) rotate relatively, a second sealing ring (8) is arranged between the second sleeve (6) and the bearing cap (3), and the second sealing ring ( 8) Through the axial compression of the second pressure ring (10), there is a gap (14) between the bearing cover (3) and the end surface of the rolling bearing (4). the
CN2010205287787U 2010-09-10 2010-09-10 A cantilever shaft support device Expired - Lifetime CN201818668U (en)

Priority Applications (1)

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CN2010205287787U CN201818668U (en) 2010-09-10 2010-09-10 A cantilever shaft support device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101968081A (en) * 2010-09-10 2011-02-09 浙江大学 Cantilever shaft supporting device
CN110243584A (en) * 2019-07-01 2019-09-17 昌河飞机工业(集团)有限责任公司 Meet cantilevered axle and stable clamping device is installed

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101968081A (en) * 2010-09-10 2011-02-09 浙江大学 Cantilever shaft supporting device
CN110243584A (en) * 2019-07-01 2019-09-17 昌河飞机工业(集团)有限责任公司 Meet cantilevered axle and stable clamping device is installed

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AV01 Patent right actively abandoned

Granted publication date: 20110504

Effective date of abandoning: 20120104