CN201973032U

CN201973032U - Double-half-shaft pin shaft

Info

Publication number: CN201973032U
Application number: CN201120036961XU
Authority: CN
Inventors: 刘晓明; 史勇; �田�浩; 王帅; 闫利军; 王会杰
Original assignee: FUSHUN YONGMAO CONSTRUCTION MACHINERY Co Ltd
Current assignee: FUSHUN YONGMAO CONSTRUCTION MACHINERY Co Ltd
Priority date: 2011-02-12
Filing date: 2011-02-12
Publication date: 2011-09-14
Anticipated expiration: 2021-02-12

Abstract

The utility model discloses a double-half-shaft pin shaft used in mechanical mounting, which is formed by combining two half shafts; the connecting surface of the two half shafts is plane; an included angle is formed between the plane and the center line of the pin shaft; plummer block ends of the two half shafts are equal; and the two half shafts are divided into the two half shafts varying in size by the connecting plane. When mounting is performed, the large half shaft is first placed in a pin hole, and then the small half shaft is knocked in. As the small half shaft has a small front part and a large rear part, when the small half shaft is knocked in along the connecting plane, the small half shaft is tighter and tighter for the wedge principle; and the small half shaft can be knocked in easily and plays a role of fastening. The pin shaft is convenient to mount and dismount and greatly improves the working efficiency.

Description

Double half axle formula bearing pin

One, technical field

The utility model belongs to mechanical mounting technique, is specifically related to a kind of bearing pin.

Two, background technique

In mechanical installation process, often use bearing pin to be connected and fixed, when the parts that connect are big, can serve inconvenience to mounting strap.The pylon of tower crane mostly uses bearing pin to install at present, and along with the demand of market to the Large Towers machine increases day by day, the volume of structural member is done bigger and bigger.Cause the installation of tower machine not easy to operate, particularly when beating bearing pin, when not only useless but also useless power.

Bearing pin in the past is single integrated type round pin axle, and integral body is squeezed into, and step appears in through hole when misplacing between the hole, is difficult for the guiding transition, squeezes into the back even can eject next.When the Spielpassung in bearing pin and hole was tight, in the building site of high-lift operation, the operator will be with just squeezing into a bearing pin for a long time, even just can't squeeze at all, prolonged the upright tower duration; Most bearing pins are after long-term the use, and corrosion is serious, bearing pin and coupling are connected together and can't get, and make troubles to dismounting.

Three, summary of the invention

The purpose of this utility model provides a kind of Double half axle formula bearing pin, to make things convenient for the installing/dismounting of mechanical assembly.The technical solution adopted in the utility model is: Double half axle formula bearing pin is constituted by two-semiaxle, and the abutted surface of two-semiaxle is the plane.The utility model is formed a complete round pin axle by two relative semiaxis, in installation process, can divide and successively two semiaxis be squeezed into respectively.The plane that two-semiaxle joins and the center line of bearing pin have an angle; The pillow block end equalization of two-semiaxle, the plane that joins is divided into two-semiaxle the two-semiaxle that varies in size.During installation, major semiaxis is put into pin-and-hole earlier, the little convenient guiding in the cross section of axle enters.Again minor semiaxis is squeezed into, when minor semiaxis has just been put into the hole, with the compound section of major semiaxis still less than the hole, so be easy to just enter in the hole.Because minor semiaxis is pre-small post-large, in the process of squeezing into along the inclined-plane, utilizes the chock principle to beat tighter and tighter, not only is easy to squeeze into, and has also played fastening effect.

The utility model makes things convenient for installing/dismounting, has improved working efficiency greatly.

Four, description of drawings

Fig. 1, Fig. 2, Fig. 3 are for having the structural representation of bearing pin now, and wherein Fig. 2 is the left view of Fig. 1, and Fig. 3 is the plan view of Fig. 1;

Fig. 4, Fig. 5, Fig. 6 are structural representation of the present utility model, and wherein Fig. 5 is the left view of Fig. 4, and Fig. 6 is along joining the downward plan view in plane among Fig. 4;

Fig. 7 is a decomposition texture schematic representation of the present utility model;

Fig. 8 is an installation process schematic representation of the present utility model;

Fig. 9 is a user mode schematic representation of the present utility model.

Five, embodiment

Double half axle formula bearing pin is formed a complete round pin by big or small two halves round pin.Between the center line of contacted plane 1 of two-part and bearing pin shape in an angle, pillow block end 2 equalizations of two-semiaxle.Front end at two-semiaxle has corresponding connection pin-and-hole 3.On the plane 1 that joins of major semiaxis, recessed oil groove 4 is arranged, be used for preventing long-time the use and the corrosion of generation.Pillow block end at major semiaxis has one section straight platform 5, may be stuck on the fixture block of coupling, plays the location and prevents the bearing pin rotary action.

During use, in the oil groove 4 of major semiaxis and on the plane 1 that joins, be coated with full lubricant grease earlier, major semiaxis is put into pin-and-hole on earth by correct direction, pillow block end 2 is alignd with the pin-and-hole limit.Again minor semiaxis is squeezed into along the plane that joins in the hole on earth, be aligned to up to two pillow blocks and end.It is concentric that connect pin-and-hole 3 this moment, can lock stop pin.

Claims

1. Double half axle formula bearing pin, it is characterized in that: it is constituted by two-semiaxle, and the abutted surface of two-semiaxle (1) is the plane.

2. Double half axle formula bearing pin according to claim 1 is characterized in that: the plane that said two-semiaxle joins (1) has an angle with the center line of bearing pin; Pillow block end (2) equalization of two-semiaxle, the plane that joins (1) is divided into two-semiaxle the two-semiaxle that varies in size.

3. Double half axle formula bearing pin according to claim 2 is characterized in that: on the plane that joins (1) of major semiaxis recessed oil groove (4) is arranged.

4. Double half axle formula bearing pin according to claim 2 is characterized in that: the pillow block end at major semiaxis has one section straight platform (5).