阅读说明：本技术 一种新型三叉杆滑球式万向联轴器 (Novel three-fork-rod sliding ball type universal coupling ) 是由 赵海霞 魏昆 张献伟 于 2020-06-29 设计创作，主要内容包括：本发明涉及一种新型三叉杆滑球式万向联轴器,包括：输入轴、滑球、三叉杆输出轴,所述输入轴一侧开有键槽,另一侧为筒形,并开有三组呈120°分布的滑球滑道,所述滑球有三套,分别安装在三个滑球滑道上,所述滑球在所述输入轴的滑球滑道沿所述输入轴的轴线方向往复滑动,所述三叉杆输出轴一侧有三个呈120°分布的叉杆,另一侧加工有键槽,三套所述滑球与所述三叉杆输出轴的三个叉杆配合。本发明具有结构简单,制造加工和装拆方便,维修方便,摩擦损失小,制作成本低,方便润滑,运行可靠等显著优点,可以适应于更复杂的传动场景。(The invention relates to a novel three-fork rod sliding ball type universal coupling, which comprises: input shaft, ballball, trident pole output shaft, open input shaft one side has the keyway, and the opposite side is the cylindric to it has three groups to be the ballball slide that 120 distribute to open, the ballball has three sets, installs respectively on three ballball slide, the ballball is in the ballball slide of input shaft is followed the axis direction reciprocating sliding of input shaft, trident pole output shaft one side has three fork arm that is 120 and distributes, and opposite side processing has the keyway, three sets the ballball with the cooperation of the three fork arm of trident pole output shaft. The invention has the obvious advantages of simple structure, convenient manufacture, processing, assembly and disassembly, convenient maintenance, small friction loss, low manufacturing cost, convenient lubrication, reliable operation and the like, and can be suitable for more complex transmission scenes.)

1. The utility model provides a novel three fork arm sliding ball formula universal joint which characterized in that: including input shaft (1), ballball (2), trident pole output shaft (3), open input shaft (1) one side has the keyway, and the opposite side is the cylindric to it has three groups to be the ballball slide that 120 distributes to open on the cylindric, ballball (2) have three sets, install respectively on three ballball slide, ballball (2) are in follow in the ballball slide of input shaft (1) the axis direction reciprocating slide of input shaft (1), trident pole output shaft (3) one side has three fork arm that is 120 and distributes, and opposite side processing has the keyway, three sets ballball (2) with the three fork arm cooperation of trident pole output shaft (3).

2. The novel three-fork rod sliding ball type universal coupling as claimed in claim 1, wherein: the inside diameter direction of following of smooth ball (2) is opened has the through-hole, and the surface is cut along through-hole axis direction has six grooves, and metal reinforcing graphite packing A (21) is added to the inslot, reduces frictional force from this to have self-lubricating property.

3. The novel three-fork rod sliding ball type universal coupling as claimed in claim 1, wherein: eight grooves are cut in the outer surface of the three-fork-rod output shaft (3) along the axial direction of the fork rod, and metal reinforced graphite packing B (31) is added in the grooves, so that the friction force is reduced, and the three-fork-rod output shaft has self-lubricating performance.

Technical Field

The invention relates to the field of couplings, in particular to a novel three-fork rod sliding ball type universal coupling.

Background

At present, in the process of variable shaft included angle transmission of large-scale mechanical equipment, a universal coupling is generally adopted. Common universal couplings include a cross universal coupling, a rzeppa universal coupling, and the like. The cross-axle type universal coupling and the rzeppa universal coupling are widely applied to various general mechanical occasions due to the structural characteristics, but the wear resistance of the couplings is not outstanding, and the wear condition is serious when the couplings work for a long time. In order to more effectively reduce the abrasion consumption and prolong the service life of the coupler, the novel three-fork rod sliding ball type universal coupler is designed and invented. The novel three-fork-rod sliding ball type universal coupling has the remarkable advantages of simple structure, convenience in manufacturing, mounting and dismounting, convenience in maintenance, small friction loss, low manufacturing cost, convenience in lubrication, reliability in operation and the like, and can be suitable for more complex transmission scenes.

Disclosure of Invention

The invention aims to provide a novel three-fork rod sliding ball type universal coupling, which adopts a motion mode that sliding balls roll in a slide way, replaces the mode that a common universal coupling sliding block directly slides in a groove, reduces friction and abrasion in the transmission process, reduces the energy loss of the coupling, improves the production efficiency, and has the advantages of simple structure, convenient manufacturing, processing, assembly and disassembly, convenient maintenance, small friction loss, low manufacturing cost, convenient lubrication and reliable operation. The technical scheme adopted by the invention is as follows: a novel three-wishbone sliding ball type universal coupling comprises: input shaft, ballball, trident pole output shaft, open input shaft one side has the keyway, and the opposite side is the cylindric to it has three groups to be the ballball slide that 120 distribute to open, the ballball has three sets, installs respectively on three ballball slide, the ballball is in the ballball slide of input shaft is followed the axis direction reciprocating sliding of input shaft, trident pole output shaft one side has three fork arm that is 120 and distributes, and opposite side processing has the keyway, three sets the ballball with the cooperation of the three fork arm of trident pole output shaft.

The sliding ball is internally provided with a through hole along the diameter direction, the outer surface of the sliding ball is cut with six grooves along the axis direction of the through hole, and a metal reinforced graphite packing A is added in the grooves, so that the friction force is reduced, and the sliding ball has self-lubricating performance.

Eight grooves are cut on the outer surface of the three-fork rod output shaft along the axis direction of the fork rod, and metal reinforced graphite packing B is added in the grooves, so that the friction force is reduced, and the self-lubricating performance is realized.

The invention has the beneficial effects that: the structure is simple, the manufacture, the processing, the assembly and the disassembly are convenient, the maintenance is convenient, the friction loss is small, the manufacturing cost is low, the lubrication is convenient, and the operation is reliable. The sliding ball is adopted to roll in the slideway, so that the sliding block of the common universal coupling is replaced to directly slide in the groove, the friction and the abrasion in the transmission process are reduced, the energy loss of the coupling is reduced, and the production efficiency is improved. The structure of the sliding ball and the three-fork rod is optimized, so that the friction force is reduced, and the self-lubricating performance is improved.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the novel three-fork rod sliding ball type universal coupling.

Fig. 2 is a schematic structural diagram of a sliding ball of the novel three-fork rod sliding ball type universal coupling.

Fig. 3 is a schematic structural diagram of a three-fork rod output shaft of the novel three-fork rod sliding ball type universal coupling.

In the figure: 1. input shaft 2, sliding ball 3, three-fork rod output shaft 21, metal-reinforced graphite packing A31 and metal-reinforced graphite packing B

Detailed Description

Referring to fig. 1, 2 and 3, a novel three-wishbone sliding ball universal joint comprises: input shaft (1), ballball (2), trident pole output shaft (3), open input shaft (1) one side has the keyway, and the opposite side is the cylindric to it has three groups to be the ballball slide that 120 distributes to open on the cylindric, ballball (2) have three sets, install respectively on three ballball slide, ballball (2) are in follow in the ballball slide of input shaft (1) the axis direction reciprocating slide of input shaft (1), trident pole output shaft (3) one side has three fork arm that is 120 and distributes, and opposite side processing has the keyway, three sets ballball (2) with the three fork arm cooperation of trident pole output shaft (3).

The inside diameter direction of following of smooth ball (2) is opened has the through-hole, and the surface is cut along through-hole axis direction has six grooves, and metal reinforcing graphite packing A (21) is added to the inslot, reduces frictional force from this to have self-lubricating property.

Eight grooves are cut in the outer surface of the three-fork-rod output shaft (3) along the axial direction of the fork rod, and metal reinforced graphite packing B (31) is added in the grooves, so that the friction force is reduced, and the three-fork-rod output shaft has self-lubricating performance.

The power is input to the input shaft (1) and transmitted to the three-fork-rod output shaft (3) through the sliding ball (2), so that the transmission of torque and motion is realized, in the transmission process, three fork rods of the three-fork-rod output shaft (3) are connected with the sliding ball (2), and the sliding ball (2) can rotate in a sliding ball slideway and slide in a reciprocating manner along the axial direction of the input shaft (1), so that the compensation of the angle in the motion process is realized.