CN202690981U - Floating mechanism for main shaft of twin countershaft transmission - Google Patents

Floating mechanism for main shaft of twin countershaft transmission Download PDF

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Publication number
CN202690981U
CN202690981U CN 201220389578 CN201220389578U CN202690981U CN 202690981 U CN202690981 U CN 202690981U CN 201220389578 CN201220389578 CN 201220389578 CN 201220389578 U CN201220389578 U CN 201220389578U CN 202690981 U CN202690981 U CN 202690981U
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main shaft
bearing
outer ring
ball head
floating mechanism
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石红云
王颖颖
陶磊
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China National Heavy Duty Truck Group Jinan Power Co Ltd
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China National Heavy Duty Truck Group Jinan Power Co Ltd
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Abstract

一种双中间轴变速器主轴用浮动机构,包括与输入轴连接的主轴,所述主轴的末端通过整体式关节轴承单元固定安装在输出轴上的轴承上,整体式关节轴承单元包括轴承外圈、自锁弹簧、球头杆,轴承外圈位于所述主轴内孔内,轴承外圈包括沿着轴线对开的两个半球,两个半球通过自锁弹簧固定连接为一体,轴承外圈球腔内安装有球头杆的球头部分,所述轴承外圈通过关节轴承压环轴向定位,所述关节轴承压环沿圆周与所述主轴端部焊接固定,所述球头杆的杆体部分通过锁紧螺母与所述输出轴轴向定位连接。本实用新型的有益效果为:轴承外圈和球头杆装配为整体式单元结构,结构简单,免予调整、便于装配特点,既能实现灵活浮动,又能实现主轴轴向的准确定位。

Figure 201220389578

A floating mechanism for a main shaft of a double countershaft transmission, comprising a main shaft connected to an input shaft, the end of the main shaft being fixedly mounted on a bearing on an output shaft through an integral joint bearing unit, the integral joint bearing unit comprising a bearing outer ring, Self-locking springs, ball-end rods, and the bearing outer ring is located in the inner hole of the main shaft. The bearing outer ring includes two hemispheres split along the axis. The two hemispheres are fixed and connected as one by the self-locking spring. The ball head part of the ball head rod is installed inside, the outer ring of the bearing is axially positioned by the joint bearing pressure ring, the joint bearing pressure ring is welded and fixed to the end of the main shaft along the circumference, and the rod body part of the ball head rod It is axially positioned and connected with the output shaft through a lock nut. The beneficial effects of the utility model are: the outer ring of the bearing and the ball head rod are assembled into an integral unit structure, which is simple in structure, free from adjustment, and easy to assemble. It can not only realize flexible floating, but also realize accurate positioning of the axial direction of the main shaft.

Figure 201220389578

Description

双中间轴变速器主轴用浮动机构Floating mechanism for main shaft of double countershaft transmission

技术领域 technical field

本实用新型为一种双中间轴变速器主轴用浮动机构。  The utility model relates to a floating mechanism for a main shaft of a double intermediate shaft transmission. the

背景技术 Background technique

现有双中间轴变速器,为能克服两副轴总成不均载,主轴必须有浮动,目前主轴后端要么刚性连接,要么主轴后端浮动机构结构零散,与本技术方案最接近的现有技术为:公开号为201103674,专利名称为:变速器用浮动结构的实用新型专利,其后端浮动机构结构零散,装配难度大很难保证装配精度,因此,装配工艺性差,而且存在铰接球头易卡滞,造成主轴因卡滞而断裂的问题。 In the existing double countershaft transmission, in order to overcome the uneven load of the two auxiliary shaft assemblies, the main shaft must have a float. At present, the rear end of the main shaft is either rigidly connected, or the structure of the floating mechanism at the rear end of the main shaft is scattered. The existing technical solution closest to this The technology is: the publication number is 201103674, and the patent name is: a utility model patent for a floating structure for a transmission. Stuck, causing the spindle to break due to sticking.

发明内容 Contents of the invention

本实用新型针对现有技术的不足,提供一种结构简单、便于装配,浮动灵活的双中间轴变速器主轴用浮动机构的技术方案。 The utility model aims at the deficiencies of the prior art, and provides a technical scheme of a floating mechanism for a main shaft of a double countershaft transmission with simple structure, easy assembly and flexible floating.

本实用新型是通过如下技术措施实现的:一种双中间轴变速器主轴用浮动机构,包括与输入轴连接的主轴,所述主轴的末端通过整体式关节轴承单元固定安装在输出轴上的轴承上,所述整体式关键轴承单元包括轴承外圈、自锁弹簧、球头杆,所述轴承外圈位于所述主轴内孔内,所述轴承外圈包括沿着轴线对开的两个半球,所述两个半球通过自锁弹簧固定连接为一体,所述轴承外圈球腔内安装有球头杆的球头部分,所述轴承外圈通过关节轴承压环轴向定位,所述关节轴承压环沿圆周与所述主轴端部焊接固定,所述球头杆的杆体部分通过锁紧螺母与所述输出轴轴向定位连接。 The utility model is realized through the following technical measures: a floating mechanism for the main shaft of a double intermediate shaft transmission, including a main shaft connected to the input shaft, the end of the main shaft is fixedly installed on the bearing on the output shaft through an integral joint bearing unit , the integral key bearing unit includes a bearing outer ring, a self-locking spring, and a ball stud, the bearing outer ring is located in the inner hole of the main shaft, and the bearing outer ring includes two hemispheres split along the axis, The two hemispheres are fixedly connected as a whole by a self-locking spring, and the ball head part of the ball head rod is installed in the ball cavity of the outer ring of the bearing, and the outer ring of the bearing is axially positioned by the joint bearing pressure ring, and the joint bearing The pressure ring is welded and fixed to the end of the main shaft along the circumference, and the rod body part of the ball stud is axially positioned and connected to the output shaft through a lock nut.

本实用新型的进一步改进还有,上述球头杆的球头部分和杆体部分之间设置有圆角过渡部,所述球头部分和圆角过渡部通过感应淬火工艺加工有感应淬火层。 A further improvement of the utility model is that a fillet transition part is provided between the ball head part and the rod body part of the above-mentioned ball head rod, and the ball head part and the fillet transition part are processed with an induction hardening layer through an induction hardening process.

上述感应淬火层的厚度为:3-5mm。 The thickness of the above-mentioned induction hardening layer is: 3-5mm.

本实用新型的进一步改进还有,上述球头杆的轴向窜动量为0.05-0.09mm。 A further improvement of the utility model is that the axial movement of the above-mentioned ball stud is 0.05-0.09mm.

本实用新型的进一步改进还有,上述整体式关节轴承单元的轴承摆角α为6度。 A further improvement of the present invention is that the bearing swing angle α of the above-mentioned integral joint bearing unit is 6 degrees.

本实用新型的进一步改进还有,上述主轴前端与输入轴的衬套之间设置有浮动间隙。  A further improvement of the utility model is that a floating gap is provided between the front end of the main shaft and the bushing of the input shaft. the

本实用新型的有益效果为:轴承外圈和球头杆装配为整体式单元结构,结构简单,免予调整、便于装配特点,既能实现灵活浮动,又能实现主轴轴向的准确定位。 The beneficial effects of the utility model are: the outer ring of the bearing and the ball head rod are assembled into an integral unit structure, which is simple in structure, free from adjustment, and easy to assemble, and can not only realize flexible floating, but also realize accurate positioning of the axial direction of the main shaft.

附图说明 Description of drawings

图1为本实用新型具体实施方式的结构示意图。 Fig. 1 is a schematic structural view of a specific embodiment of the present invention.

图2为图1中的A部放大结构示意图。 FIG. 2 is a schematic diagram of the enlarged structure of part A in FIG. 1 .

图3为本实用新型具体实施方式中整体式关节轴承单元的结构示意图。 Fig. 3 is a schematic structural view of the integral joint bearing unit in the specific embodiment of the present invention.

图4为本实用新型具体实施方式中整体式关节轴承单元的结构分解示意图。 Fig. 4 is a schematic exploded view of the structure of the integral joint bearing unit in the specific embodiment of the present invention.

图5为本实用新型具体实施方式中球头杆的剖切示意图。 Fig. 5 is a schematic cutaway view of the ball head rod in the specific embodiment of the present invention.

图中,1、输入轴,2、主轴,3、衬套,4、整体式关节轴承单元,5、输出轴,6、轴承,7、轴承外圈,8、自锁弹簧,9、球头部分,10、杆体部分,11、关节轴承压环,12、锁紧螺母,13、圆角过渡部,14、感应淬火层。 In the figure, 1. Input shaft, 2. Main shaft, 3. Bushing, 4. Integral joint bearing unit, 5. Output shaft, 6. Bearing, 7. Bearing outer ring, 8. Self-locking spring, 9. Ball head Part, 10, rod body part, 11, joint bearing pressure ring, 12, lock nut, 13, fillet transition part, 14, induction hardening layer.

具体实施方式 Detailed ways

为能清楚说明本方案的技术特点,下面通过一个具体实施方式,对本方案进行阐述。 In order to clearly illustrate the technical features of the solution, the solution will be described below through a specific implementation manner.

如附图,一种双中间轴变速器主轴用浮动机构,包括与输入轴1连接的主轴2,所述主轴2前端与输入轴1的衬套3之间设置有浮动间隙,所述主轴2的末端通过整体式关节轴承单元4固定安装在输出轴5上的轴承6上,所述整体式关键轴承单元4包括轴承外圈7、自锁弹簧8、球头杆,所述轴承外圈7位于所述主轴内孔内,所述轴承外圈7包括沿着轴线对开的两个半球,所述两个半球通过自锁弹簧8固定连接为一体,所述轴承外圈7球腔内安装有球头杆的球头部分9,所述轴承外圈7通过关节轴承压环11轴向定位,所述关节轴承压环11沿圆周与所述主轴2端部焊接固定,所述球头杆的杆体部分10通过锁紧螺母12与所述输出轴5轴向定位连接。 As shown in the accompanying drawings, a floating mechanism for the main shaft of a double countershaft transmission includes a main shaft 2 connected to the input shaft 1, a floating gap is provided between the front end of the main shaft 2 and the bushing 3 of the input shaft 1, and the main shaft 2 The end is fixedly installed on the bearing 6 on the output shaft 5 through an integral joint bearing unit 4. The integral key bearing unit 4 includes a bearing outer ring 7, a self-locking spring 8, and a ball stud. The bearing outer ring 7 is located at In the inner hole of the main shaft, the bearing outer ring 7 includes two hemispheres split along the axis, and the two hemispheres are fixedly connected as a whole by a self-locking spring 8. The ball cavity of the bearing outer ring 7 is installed with The ball head part 9 of the ball stud, the bearing outer ring 7 is axially positioned by the joint bearing pressure ring 11, and the joint bearing pressure ring 11 is welded and fixed to the end of the main shaft 2 along the circumference. The shaft part 10 is axially positioned and connected to the output shaft 5 through a lock nut 12 .

其中,球头杆的球头部分9和杆体部分10之间设置有圆角过渡部13,所述球头部分9和圆角过渡部13通过感应淬火工艺加工有感应淬火层14,感应淬火层14的厚度为3-5mm。 Wherein, a fillet transition portion 13 is provided between the ball head portion 9 and the shaft portion 10 of the ball head rod, and the ball head portion 9 and the fillet transition portion 13 are processed with an induction hardening layer 14 through an induction hardening process, and the induction hardening layer 14 has a thickness of 3-5mm.

球头杆的轴向窜动量为0.05-0.09mm,整体式关节轴承单元的轴承摆角α为6度。 The axial displacement of the ball head rod is 0.05-0.09 mm, and the bearing swing angle α of the integral joint bearing unit is 6 degrees.

本实用新型未经描述的技术特征可以通过或采用现有技术实现,在此不再赘述,当然,上述说明并非是对本实用新型的限制,本实用新型也并不仅限于上述举例,本技术领域的普通技术人员在本实用新型的实质范围内所做出的变化、改型、添加或替换,也应属于本实用新型的保护范围。 The undescribed technical features of the utility model can be realized by or using the prior art, so they will not be repeated here. Of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary skilled persons within the essential scope of the present utility model shall also belong to the protection scope of the present utility model.

Claims (6)

1.一种双中间轴变速器主轴用浮动机构,包括与输入轴连接的主轴,其特征是,所述主轴的末端通过整体式关节轴承单元固定安装在输出轴上的轴承上,所述整体式关节轴承单元包括轴承外圈、自锁弹簧、球头杆,所述轴承外圈位于所述主轴内孔内,所述轴承外圈包括沿着轴线对开的两个半球,所述两个半球通过自锁弹簧固定连接为一体,所述轴承外圈球腔内安装有球头杆的球头部分,所述轴承外圈通过关节轴承压环轴向定位,所述关节轴承压环沿圆周与所述主轴端部焊接固定,所述球头杆的杆体部分通过锁紧螺母与所述输出轴轴向定位连接。 1. A floating mechanism for the main shaft of a double countershaft transmission, comprising a main shaft connected to the input shaft, characterized in that the end of the main shaft is fixedly installed on the bearing on the output shaft through an integral joint bearing unit, and the integral The joint bearing unit includes a bearing outer ring, a self-locking spring, and a ball stud. The bearing outer ring is located in the inner hole of the main shaft. The bearing outer ring includes two hemispheres split along the axis, and the two hemispheres are The ball head part of the ball head rod is installed in the ball cavity of the outer ring of the bearing, the outer ring of the bearing is axially positioned by the joint bearing pressure ring, and the joint bearing pressure ring is along the circumference and The end of the main shaft is fixed by welding, and the rod body part of the ball stud is axially positioned and connected with the output shaft through a lock nut. 2.根据权利要求1所述的双中间轴变速器主轴用浮动机构,其特征是,所述球头杆的球头部分和杆体部分之间设置有圆角过渡部,所述球头部分和圆角过渡部通过感应淬火工艺加工有感应淬火层。 2. The floating mechanism for the main shaft of double countershaft transmission according to claim 1, characterized in that, a fillet transition portion is provided between the ball head part and the rod body part of the ball head rod, and the ball head part and the circle The corner transition portion is processed with an induction hardened layer by an induction hardening process. 3.根据权利要求2所述的双中间轴变速器主轴用浮动机构,其特征是,所述感应淬火层的厚度为:3-5mm。 3 . The floating mechanism for the main shaft of the double countershaft transmission according to claim 2 , wherein the thickness of the induction hardened layer is 3-5 mm. 4 . 4.根据权利要求1或2所述的双中间轴变速器主轴用浮动机构,其特征是,所述球头杆的轴向窜动量为0.05-0.09mm。 4. The floating mechanism for the main shaft of the double countershaft transmission according to claim 1 or 2, characterized in that the axial displacement of the ball stud is 0.05-0.09 mm. 5.根据权利要求1或2所述的双中间轴变速器主轴用浮动机构,其特征是,所述整体式关节轴承单元的轴承摆角α为6度。 5 . The floating mechanism for the main shaft of a double countershaft transmission according to claim 1 or 2 , wherein the bearing swing angle α of the integral joint bearing unit is 6 degrees. 6 . 6.根据权利要求1所述的双中间轴变速器主轴用浮动机构,其特征是,所述主轴前端与输入轴的衬套之间设置有浮动间隙。 6 . The floating mechanism for the main shaft of the dual countershaft transmission according to claim 1 , wherein a floating gap is provided between the front end of the main shaft and the bushing of the input shaft. 7 .
CN 201220389578 2012-08-08 2012-08-08 Floating mechanism for main shaft of twin countershaft transmission Expired - Lifetime CN202690981U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102808930A (en) * 2012-08-08 2012-12-05 中国重汽集团济南动力有限公司 Floating mechanism for main shaft of double countershaft transmission

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102808930A (en) * 2012-08-08 2012-12-05 中国重汽集团济南动力有限公司 Floating mechanism for main shaft of double countershaft transmission
CN102808930B (en) * 2012-08-08 2016-03-16 中国重汽集团济南动力有限公司 Twin countershaft transmission main shaft relocation mechanism

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