CN201401450Y

CN201401450Y - Spline shaft welding structure of large universal shaft

Info

Publication number: CN201401450Y
Application number: CN2009200459869U
Authority: CN
Inventors: 石光洲
Original assignee: Jiangsu Rokee Heavy Industry Technology Co ltd
Current assignee: Jiangsu Rokee Heavy Industry Technology Co ltd
Priority date: 2009-05-13
Filing date: 2009-05-13
Publication date: 2010-02-10
Anticipated expiration: 2019-05-13

Abstract

The utility model relates to a mechanical transmission part structure specifically is a integral key shaft welded structure of large-scale cardan shaft. The spline shaft welding structure of the large universal shaft comprises a section of spline shaft and a flange located at one end of the spline shaft, wherein the flange is matched with an outer cylindrical surface at the end part of the spline shaft through an inner hole, annular grooves are respectively formed in the front end and the rear end of a joint surface of the flange and the spline shaft, a plurality of axial pin holes are uniformly formed in the joint surface of the flange and the spline shaft, and pins are embedded in the pin holes. The utility model discloses bearing capacity is strong, welding quality easily controls, connects reliably.

Description

The splined shaft welded structure of large-scale cardan shaft

Technical field

The utility model relates to a kind of mechanical transmission component structure, specifically is a kind of splined shaft welded structure of large-scale cardan shaft.

Background technique

Splined shaft parts in the large-scale cardan shaft are usually by one section splined shaft 1 ' and be welded on the flange 2 of splined shaft one end ' constitute (as shown in Figure 1), for the flexible large-scale cardan shaft of some bands, often bear heavy duty, alternation and impulsive load, so higher to the performance requirement of welding part.For the welded structure between splined shaft and the flange, traditional mode is as shown in Figure 1, the medial extremity of flange and splined shaft junction plane open very dark groove 3 ', weld at the groove place again, to guarantee enough join strengths.Because the weld joint groove is too dark, welding heat affected zone is big, and welding deformation is also big, tends to cause sealing-off, influences normally carrying out of the production order, also influences the reliable transmission in the using process.

Summary of the invention

Technical problem to be solved in the utility model is that the splined shaft welded structure that a kind of bearing capacity is strong, welding quality is easy to control, connect reliable large-scale cardan shaft is provided.

The splined shaft welded structure of large-scale cardan shaft of the present utility model includes one section splined shaft and is positioned at the flange of splined shaft one end, flange cooperates by the external cylindrical surface of endoporus with the splined shaft end, have the groove of annular in the rear and front end of flange and splined shaft junction plane, junction plane along flange and splined shaft evenly has a plurality of axial pin-and-holes simultaneously, is embedded with pin in pin-and-hole.Pin can weld preceding embedding at the groove to the junction plane front end of flange and splined shaft, welds after the embedding again, thereby makes scolder cover the front end of pin.

The utility model is by being provided with less groove at flange and splined shaft junction plane front end and back end, and increases uniform pin and cooperate, when transmitting torque, and bearing pin bearing load not only, the twice weld seam has also increased the reliability of transmission; Article two, the groove of weld seam is little, thereby the welding job amount is few, and welding heat affected zone and welding deformation are all little, and welding quality is easy to control.

Description of drawings

Fig. 1 is the splined shaft welded structure schematic representation of traditional large-scale cardan shaft;

Fig. 2 is an end-face structure schematic representation of the present utility model;

Fig. 3 is the A cross-sectional view of Fig. 1.

Embodiment

As Fig. 2, shown in Figure 3, the splined shaft welded structure of large-scale cardan shaft of the present utility model comprises splined shaft 1 and is positioned at the flange 2 of splined shaft one end, flange cooperates by the external cylindrical surface of endoporus with the splined shaft end, have the groove 3 of annular in the rear and front end of flange and splined shaft junction plane, along the even a plurality of axial pin-and-holes that distribute of the junction plane of flange and splined shaft, in pin-and-hole, be embedded with pin 4 simultaneously.Pin welds preceding embedding at the groove to the junction plane front end of flange and splined shaft, welds after the embedding again, thereby makes scolder cover the front end of pin.

Claims

1, a kind of splined shaft welded structure of large-scale cardan shaft, include one section splined shaft (1) and be positioned at the flange (2) of splined shaft one end, flange cooperates by the external cylindrical surface of endoporus with the splined shaft end, it is characterized in that: the groove (3) that has annular in the flange (2) and the rear and front end of splined shaft (1) junction plane, junction plane along flange and splined shaft evenly has a plurality of axial pin-and-holes simultaneously, is embedded with pin (4) in pin-and-hole.

2, the splined shaft welded structure of large-scale cardan shaft according to claim 1 is characterized in that: the scolder that the groove (3) of the junction plane front end of flange and splined shaft is located covers the front end of pin.