CN202326776U

CN202326776U - Connecting structure for shaft and coupling

Info

Publication number: CN202326776U
Application number: CN2011204752199U
Authority: CN
Inventors: 李明亮
Original assignee: NINGBO XINGYE TRACTOR MANUFACTURING CO LTD
Current assignee: NINGBO XINGYE TRACTOR MANUFACTURING CO LTD
Priority date: 2011-11-25
Filing date: 2011-11-25
Publication date: 2012-07-11
Anticipated expiration: 2021-11-25

Abstract

The utility model relates to a connecting structure for a shaft and a coupling, which comprises the shaft and the coupling. The shaft and the coupling are fixedly connected through a pin shaft penetrating in the radial direction. The connecting structure for the shaft and the coupling is characterized in that the length of the pin shaft is less than the diameter of the coupling; the side wall of the coupling is also provided with a ring of ring groove along the circumferential direction; and a snap spring which can be abutted with the end faces of both ends of the pin shaft respectively to prevent the pin shaft from sliding along the radial direction is arranged in the ring groove. The connecting structure for the shaft and the coupling has the advantages that a structure that both ends of a traditional pin shaft are exposed outside the coupling is changed into a structure that both ends of the pin shaft are exposed in the coupling, and then the pin shaft is fixed through the snap spring so as to prevent the pin shaft from dropping out. According to the connecting structure for the shaft and the coupling, the problem that application safety is caused because a ruptured part knocks off other rotating components due to the fact that the pin shaft is ruptured can be avoided, and thereby, the application safety of the other rotating components is increased, and the accidents caused because the pin shaft is ruptured are reduced. Moreover, as a snap spring structure is adopted and is provided with lugs which can be separated and combined, the connecting structure for the shaft and the coupling is convenient in installation and is also favorable of disassembling and maintenance.

Description

The linkage structure of a kind of axle and coupling

Technical field

The utility model relates to the linkage structure of a kind of axle and coupling.

Background technique

Coupling is two axles (driving shaft and driven shaft) that are used for connecting in the different institutions; Make it the mechanical parts of common rotation with transmitting torque; General coupling all is made up of two halves; Can connect with driving shaft and driven shaft respectively, axle has determined the stability and the Security of transmission of power with the linkage structure of coupling.

Usually; All be to be connected in one between the clutch shaft of most of tractor and the coupling in the existing technology with a bearing pin that radially runs through clutch shaft and coupling; In order to guarantee the connection reliability of axle and coupling; The two ends of bearing pin are exposed to outside the coupling usually, and the two ends of then bearing pin being exposed are stamped rivet or cotter pin respectively with fixed pin shaft.But can there be bigger potential safety hazard in above-mentioned this Placement in actual use, because the bearing pin two ends on the coupling can be because aging drop or receive external force to shear and rupture; And install in the space of coupling except coupling and transmission shaft; Also have the moving element of other high speed rotating, the bearing pin end that comes off is just dropped on these moving elements easily, causes wearing and tearing, the fault of moving element; When serious even can cause scrapping and security incident of complete machine; Therefore, the traditional axle and the Placement safety in utilization of coupling are not high enough, await to do further improvement.

The model utility content

The utility model technical problem to be solved is to provide a kind of linkage structure simple, easy to assembly and use the linkage structure of safer axle with coupling to above-mentioned existing technology present situation.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: the linkage structure of a kind of axle and coupling; Include axle and coupling; Be fixedly linked through the bearing pin that radially wears between said axle and the coupling; It is characterized in that: the length of said bearing pin is less than the diameter of said coupling; And the sidewall of said coupling is along circumferentially also offering a ring annular groove, is provided with in this circular groove can be respectively to offset with the end face at said bearing pin two ends and prevent the shaft block ring that bearing pin radially slides.

As preferably; Described axle has first through hole that radially penetrates; The sidewall of said coupling has one group of second through hole radially establishing relatively, and said bearing pin is arranged within said first through hole and second through hole, and the two ends of said bearing pin are located within said second through hole.

Installation and removal for ease, preferred as further, described shaft block ring is a jump ring, and this jump ring has the bayonet socket of radially offering, and said jump ring is respectively arranged with the overlapped lug of ability in the both sides of this buckle, offer one on each lug and connect the hole.So jump ring is fastened in the circular groove after bearing pin is packed first through hole and second through hole into, to guarantee that bearing pin can not come off.

Compared with prior art; The advantage of the utility model is: the structural modification that existing bearing pin two ends are exposed to outside the coupling is to be located within the coupling in the bearing pin two ends; Fixing through shaft block ring (like jump ring) then, prevent that bearing pin from dropping out, this linkage structure can avoid causing because of the bearing pin fracture breaking portion to hit down on other rotatable parts and the problem safe in utilization that causes; Improve the safety in utilization of other rotatable parts, reduced the accident that causes because of the bearing pin fracture; In addition, shaft block ring can adopt the jump ring structure, this jump ring have can deciliter lug, the convenient installation also helps the dismounting maintenance.

Description of drawings

Fig. 1 is the utility model embodiment's a perspective view (not installation shaft state).

Fig. 2 is the utility model embodiment's a three-dimensional exploded view (not installation shaft state).

Fig. 3 is the utility model embodiment's a user mode sectional view.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Like Fig. 1～shown in Figure 3; The linkage structure of present embodiment is clutch shaft 1 and the linkage structure of coupling 2 in the tractor dynamic power transmission system; Wherein, Offer first through hole 11 that radially penetrates on the clutch shaft 1, the sidewall of coupling 2 then offers one group of second through hole 21 radially establishing relatively, and clutch shaft 1 is inserted within the coupling 2; First through hole 11 and second through hole 21 align, and are fixedly linked through the bearing pin 3 that is arranged in first through hole 11 and second through hole 21 between clutch shaft 1 and the coupling 2;

Drop on other rotatable parts in order to prevent bearing pin 3 from use rupturing, bearing pin 3 length of present embodiment are less than the diameter of coupling 2, promptly are located within second through hole 21 in bearing pin 3 two ends; The two ends of bearing pin 3 do not expose to outside the coupling 2; And coupling 2 along circumferentially also being provided with a ring annular groove 22, is embedded with a shaft block ring in the position that offers second through hole 21 in this circular groove 22; Present embodiment adopts jump ring 4 as shaft block ring; Jump ring 4 just in time can be sealed two on the coupling 2 second through holes of establishing relatively 21, makes two ends of bearing pin 3 to offset with jump ring 4 respectively, thereby realizes the radial location of bearing pin 3; Prevent that bearing pin 3 from dropping out, referring to Fig. 3;

Assemble for ease and dismantle, the jump ring 4 of present embodiment is an elastic member, and it has the bayonet socket of radially offering 41; Jump ring 4 is respectively arranged with a lug 42 in the both sides of this bayonet socket 41, offer attachment hole 421 on each lug 42, during installation; Earlier clutch shaft 1 is inserted coupling 2; First through hole 11 of clutch shaft 1 and second through hole 21 of coupling 2 are alignd, bearing pin 3 is arranged in first through hole 11 and second through hole 21 again, the two ends of bearing pin 3 are contained in second through hole 21; Then jump ring 4 is embedded in the circular groove 22, rivet or pin that two lug 42 usefulness of jump ring 4 are passed attachment hole 421 are fixed up.

The linkage structure of present embodiment is not limited to being connected of tractor clutch axle and coupling, also is applicable to the axle of other any structures and the connection between the coupling (or shaft coupling).

Claims

1. the linkage structure of axle and coupling; Include axle and coupling; Be fixedly linked through the bearing pin that radially wears between said axle and the coupling, it is characterized in that: the length of said bearing pin is less than the diameter of said coupling, and; The sidewall of said coupling is along circumferentially also offering a ring annular groove, is provided with in this circular groove can be respectively to offset with the end face at said bearing pin two ends and prevent the shaft block ring that bearing pin radially slides.

2. the linkage structure of axle according to claim 1 and coupling; It is characterized in that: described axle has first through hole that radially penetrates; The sidewall of said coupling has one group of second through hole radially establishing relatively; Said bearing pin is arranged within said first through hole and second through hole, and the two ends of said bearing pin are located within said second through hole.

3. the linkage structure of axle according to claim 1 and 2 and coupling; It is characterized in that: described shaft block ring is a jump ring; This jump ring has the bayonet socket of radially offering; Said jump ring is respectively arranged with the overlapped lug of ability in the both sides of this buckle, offer an attachment hole on each lug.