CN202251315U

CN202251315U - Novel fancy pin shaft

Info

Publication number: CN202251315U
Application number: CN201120294351XU
Authority: CN
Inventors: 张玉程; 邓时坤; 胡黔生; 邓小敏; 吕标
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-15
Filing date: 2011-08-15
Publication date: 2012-05-30
Anticipated expiration: 2021-08-15

Abstract

The utility model discloses a novel fancy pin shaft, which is used for eliminating external force in the axial, radial and circumferential directions borne by a locking spacer sleeve through an annular positioning groove, a square end socket, a spring mechanism, and a special stepped cylindrical pin on the fancy pin shaft main body, so as to prevent the locking spacer sleeve from falling off and prevent the pin shaft from falling off, and further reduce the equipment failure and safety accidents caused by the fact that the locking spacer sleeve and the pin shaft fall off. The novel fancy pin shaft is simple to manufacture, low in cost, simple to use, and excellent in the anti-falling off effect, and has the service life tens even hundreds of times longer than that of the conventional pin shaft.

Description

The fancy bearing pin

Technical field

The utility model belongs to the hinged field of various use bearing pins, is specifically related to a kind of novel fancy bearing pin.

Background technique

All use bearing pin hinged securement parts on a lot of equipment, use the bearing pin fixed hammer like hammertype shredder, submerged slag conveyor is with the fixing scraper plate etc. of bearing pin.The bearing pin that uses at present with cotter pin or the locking of ring locking interstage sleeve, prevents that bearing pin from coming off mostly.

In actual use, this bearing pin is very easy to come off, and working life is short, has potential safety hazard.The bearing pin that has uses just come off a couple of days because of on-the-spot complicated.Bearing pin comes off, and is not that bearing pin self is out of joint, but the cotter pin or the ring locking retaining that are used to lock bearing pin receive axially in actual use, radially, the external force effect of circumferencial direction and coming off, the bearing pin that loses locking just comes off thereupon.Bearing pin comes off, and often has potential safety hazard.Just think, just at the grinder hammerhead of high speed rotating, because bearing pin comes off, the tup band greatly that inertia flies out, and has broken through the disintegrator cylindrical shell, a guy's process just in time, and consequence is hardly imaginable.Just think, the scraper plate of slag conveyor is along with chain operation, and a bearing pin comes off, and scraper plate one end is sagging, is stuck in the somewhere of support, and chain is broken, and causes whole production to be interrupted, and will cause how many losses.

The model utility content

The technical problem that the utility model will solve provides the extraordinary novel fancy bearing pin of a kind of anticreep effect.

Adopt following technological scheme for solving the problems of the technologies described above the utility model: fancy bearing pin, this fancy bearing pin comprise fancy bearing pin body, locking interstage sleeve, ladder straight pin and pressure spring; Fancy bearing pin body one end is that the circular the other end is square, and a circular orientation groove is arranged between projected square part and the circular portion, and there is a deep hole position over against square any drift angle on the circular orientation groove; The locking interstage sleeve is round outside but spuare inside supporting with fancy bearing pin body; The thickness of locking interstage sleeve is consistent with the circular orientation recess width; There is an auxiliary through hole position over against the square any drift angle of fancy bearing pin body on the locking interstage sleeve; Become the position of miter angle that a positioning through hole is arranged with auxiliary through hole, auxiliary through hole is consistent with the positioning through hole aperture and littler than the deep hole aperture of circular orientation groove; One of ladder straight pin big one little, a big external diameter and deep hole are supporting, a little external diameter and auxiliary through hole are supporting; The aperture of pressure spring and deep hole is supporting, and pressure spring length is less than the deep hole degree of depth; Pressure spring is arranged in deep hole, ladder straight pin big to pressure spring little outwards, when positioning through hole during over against deep hole, one that the ladder straight pin is little gets into positioning through hole and is stuck between locking interstage sleeve and the fancy bearing pin body.

Be prone to come off, give and produce and bring safely defectives such as major hidden danger, maintenance cost height to existing bearing pin; The inventor has designed a kind of novel fancy bearing pin; It eliminates the suffered external force that axially, radially reaches circumferencial direction on the locking interstage sleeve through annular positioning groove, square termination, spring office and special ladder straight pin on the fancy bearing pin body, has not stopped the bearing pin obscission thereby assurance locking interstage sleeve does not come off.The utility model is made simply, cost is low, use is simple, the anticreep effect is very good, and be tens times even hundreds of times of existing bearing pin working life.

Description of drawings

Fig. 1 is the utility model fancy bearing pin assembling process schematic representation.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is that schematic representation is accomplished in the assembling of the utility model fancy bearing pin.

Fig. 4 is the left view of Fig. 3.

Among the figure: 1 fancy bearing pin body, 2 locking interstage sleeves, 3 ladder straight pins, 4 pressure springs.

Embodiment

To shown in Figure 4, the utility model fancy bearing pin comprises fancy bearing pin body 1, locking interstage sleeve 2, ladder straight pin 3 and pressure spring 4 like Fig. 1; Fancy bearing pin body 1 one ends are that the circular the other end is square, and a circular orientation groove is arranged between projected square part and the circular portion, and there is a deep hole position over against square any drift angle on the circular orientation groove; Locking interstage sleeve 2 is round outside but spuare inside supporting with fancy bearing pin body 1; The thickness of locking interstage sleeve 2 is consistent with the circular orientation recess width; There is an auxiliary through hole position over against fancy bearing pin body 1 square any drift angle on the locking interstage sleeve 2; Become the position of miter angle that a positioning through hole is arranged with auxiliary through hole, auxiliary through hole is consistent with the positioning through hole aperture and littler than the deep hole aperture of circular orientation groove; 3 one of ladder straight pins big one little, a big external diameter and deep hole are supporting, a little external diameter and auxiliary through hole are supporting; Pressure spring 4 is supporting with the aperture of deep hole, and pressure spring 4 length are less than the deep hole degree of depth; Pressure spring 4 is arranged in deep hole, ladder straight pin 3 big to pressure spring 4 little outwards, when positioning through hole during over against deep hole, one that ladder straight pin 3 is little gets into positioning through hole and is stuck between locking interstage sleeve 2 and the fancy bearing pin body 1.

To shown in Figure 4, when using the utility model, earlier fancy bearing pin body is passed hinging par, like Fig. 1 like the pin shaft hole on the grinder hammerhead, like the pin shaft hole on the scraper plate; Then, pressure spring is put into the deep hole on the fancy bearing pin body; Then, the ladder straight pin is installed, the big end of ladder straight pin is to spring, and a little end is outside.Minute-pressure ladder straight pin; Auxiliary through hole on the locking interstage sleeve is faced toward the projected square part that the deep hole on the fancy bearing pin body passes fancy bearing pin body; Arrive the annular positioning groove place, the ladder straight pin gets out the auxiliary through hole on the locking interstage sleeve at an end little under the thrust of pressure spring.With instrument the ladder straight pin is subdued, will lock interstage sleeve rotation 45 degree, make the deep hole of positioning through hole on the fancy bearing pin body on the locking interstage sleeve, the ladder straight pin ejects under the effect of pressure spring, and the positioning through hole on the interstage sleeve is locked in little end entering.Because a big end can't pass the hole on the locking interstage sleeve on the ladder straight pin, the ladder straight pin just is stuck between locking interstage sleeve and the fancy bearing pin body, prevents to lock interstage sleeve and rotates.

During dismounting, pin ladder straight pin, pressure spring, rotational lock interstage sleeve 45 degree just can take off the locking interstage sleeve, take off ladder straight pin and pressure spring.

Positioning action is played to the locking interstage sleeve in the annular positioning groove of the utility model fancy bearing pin and square termination, and has eliminated axial force, radial force that the locking interstage sleeve in use receives.Special ladder straight pin can prevent to lock the interstage sleeve rotation, eliminates the suffered circumferencial direction active force of locking interstage sleeve, as long as the locking interstage sleeve does not rotate, just can not come off from the fancy bearing pin, guarantees that the fancy bearing pin does not come off.Fancy bearing pin body can shield again to the ladder straight pin with the locking interstage sleeve, and the ladder straight pin is difficult to be damaged.Therefore, the fancy bearing pin long service life of the utility model can not come off voluntarily.

Claims

1. fancy bearing pin is characterized in that: this fancy bearing pin comprises fancy bearing pin body, locking interstage sleeve, ladder straight pin and pressure spring; Said fancy bearing pin body one end is that the circular the other end is square, and a circular orientation groove is arranged between projected square part and the circular portion, and there is a deep hole position over against square any drift angle on the circular orientation groove; Round outside but spuare inside and the said fancy bearing pin of said locking interstage sleeve body is supporting; The thickness of locking interstage sleeve is consistent with said circular orientation recess width; There is an auxiliary through hole position over against the square any drift angle of fancy bearing pin body on the locking interstage sleeve; Become the position of miter angle that a positioning through hole is arranged with auxiliary through hole, auxiliary through hole is consistent with the positioning through hole aperture and littler than the deep hole aperture of circular orientation groove; One of said ladder straight pin big one little, big an external diameter and said deep hole are supporting, little an external diameter and said auxiliary through hole are supporting; The aperture of said pressure spring and said deep hole is supporting, and pressure spring length is less than the deep hole degree of depth; Said pressure spring is arranged in said deep hole; Said ladder straight pin big one to pressure spring little outwards; When said positioning through hole during over against deep hole, one that the ladder straight pin is little gets into said positioning through hole and is stuck between locking interstage sleeve and the fancy bearing pin body.