CN2422094Y

CN2422094Y - Improved structure of jaw

Info

Publication number: CN2422094Y
Application number: CN 99255560
Authority: CN
Inventors: 陈钰霖
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-12-07
Filing date: 1999-12-07
Publication date: 2001-03-07
Anticipated expiration: 2009-12-07

Abstract

The utility model relates to an improved structure of a jaw, which mainly comprises a drawing device body. The middle part of the drawing device body is provided with a containing part and a power device used for installing oil pressure, the body is also provided with a link rod, and the end of the link rod is provided with a screw connection hole and a jaw used for screw connection and fixation; the top of the jaw is provided with a screw hole and the link rod fixed on the body by the screw hole, the end of the jaw is provided with an inward hook part for hooking and fixing a bearing, the jaw extends from the top to the end and is provided with a convex costal part, the costal part extends towards both sides to form a circular bodies, the end of the jaw forms the largest circular body, and the inner surface of each of the circular bodies is a smooth surface. The utility model can bear large stress, and can stably clamp a bearing.

Description

The improvement structure of claw hook

The utility model relates to a kind of claw hook structure, particularly relates to a kind of claw hook structure of bearing bigger stress.

On mechanical tool, the use of transmission device is quite extensive, comprising bearing, gear, belt pulley etc.For example, any rotation facility or drive mechanism all can utilize bearing to improve the smoothness (the utility model also will be that embodiment is illustrated with the bearing) of its overall operation, and Just because of this, the use of bearing more industrial quarters is paid attention to.Yet because the design feature and the operational mode of bearing itself, the service life of most of bearing is not long, more is not subjected to the toolroom machine of maintenance all the more so, the situation of bearing therefore usually occurs needing to change.And when if desired bearing being extracted, generally all can use oil pressure drawbench as shown in Figure 1.Though this general drawbench can be extracted bearing or gear easily, produce fracture or slight crack owing to general claw hook structure commonly used makes claw hook, thereby the overall utility of oil pressure drawbench is affected.

General oil pressure drawbench mainly comprises a body 10, the place can be used for installing oil pressure power set 11 in the middle of the body 10, be equiped with three claw hooks 12 on the body 10, the end of claw hook 12 forms a hook portion 13, so and can be so that the hook portion 13 of claw hook 12 is come the solid bearing 14 of hook, and utilize the pushing ram 15 of oil pressure power set 11 to push up the solid bearing 14 of hook portion 13 hooks of pulling a part 16 and making claw hook 12, and utilize maintaining static of part 16 of axle and bearing 14 can be pulled out, this is the action mechanism of general oil pressure drawbench.

1, this claw hook 12 is a platysome, though the hook portion 13 of utilizing its end to form is come the solid bearing 14 of hook, but the stress that is born in application of force process often concentrates on the end of hook portion 13, therefore cause hook portion 13 terminal fractures easily or slight crack occurs, thereby have influence on the use of whole oil pressure drawbench.

2, the maximum position that meets with stresses, another place of this claw hook 12 is near claw hook 12 and below, body 10 junctions, because must bear the top of the pulling force of body 10 and hook portion 13 stress of pulling herein simultaneously, therefore also regular meeting causes herein jackknifing.

In view of the drawback of general claw hook structure commonly used, the inventor is active development research, and the phase can be improved the claw hook structure, so that it has more practicality.Yet Providence doesn't let down a man who does his best at long last, and the inventor is based on being engaged in this series products manufacturing experience for many years and permanent effort research and test, and development and Design goes out the improvement structure of the utility model claw hook finally, and can Jiahui consumer and industrial circle.

The purpose of this utility model promptly is to provide a kind of improvement structure of claw hook, to prolong its service life and to make it to have more practicality.

To achieve these goals, the utility model forms a protrusion flank and extends to form circular arc body to both sides to terminal from the top of claw hook, and the inner face of circular arc body forms an even surface, and maximum circular arc body is positioned at the end of claw hook.So the claw hook that forms can bear bigger stress, and can be more firm during the clamping bearing.Be described in further detail below in conjunction with the technical characterictic of specific embodiment the improvement structure of the utility model claw hook.

Fig. 1 is the structural representation of general oil pressure drawbench commonly used;

Fig. 2 is the improvement structural upright schematic diagram of the utility model claw hook;

Fig. 3 is the claw hook rearview of the improvement structure of the utility model claw hook;

Fig. 4 is the claw hook front view of the improvement structure of the utility model claw hook;

Fig. 5 is that the improvement structure applications of the utility model claw hook is in the structural representation of whole oil pressure drawbench.

The explanation of critical piece figure number:

10 bodies, 11 oil pressure power set, 12 claw hooks, 13 hook portions, 14 bearings, 15 pushing rams, 16 parts, 20 drawbench bodies, 22 oil pressure power set, 23 traces, 30 claw hooks, 31 screws, 32 screw pieces, 33 hook portions, 34 flanks, 35 circular arc bodies, 351 maximum circular arc bodies, 36 even surfaces, 40 bearings.

Referring to figs. 2 and 5, the improvement structure of the utility model claw hook mainly comprises a drawbench body 20, place is provided with a containing part and is used to install oil pressure power set 22 in the middle of it; Be equiped with three traces 23 on drawbench body 20, the end of this trace 23 is provided with screw hole and is used to screw togather fixedly claw hook 30; The top of claw hook 30 is provided with the screw 31 that penetrates and by screw piece 32 claw hook 30 is screwed togather on the trace 23 that is fixed on drawbench body 20, and the end of claw hook 30 is provided with an inside hook portion 33 and makes it be able to the solid bearing 40 of hook; The top of claw hook 30 to hook portion 33 terminal extensions are provided with a flank 34 (with reference to figure 3, Fig. 4) that protrudes, this flank 34 is extended to form a circular arc body 35 and forms maximum circular arc body 351 in claw hook 30 ends to both sides to the end by screw 31, and the inner face of circular arc body 35 forms an even surface 36.

With reference to figure 5, the utility model in use, and can utilize the screw 31 of claw hook 30 that claw hook 30 is secured on the trace 23, make it to become one and utilize the solid bearing 40 of hook portion 33 hooks with drawbench body 20.So can reach claw hook structure, make its shortcoming that does not have general common structure fully in use and produced with practicality, and can be so that it is firm and easy more.Therefore, the improvement structure of the utility model claw hook can reach suitable practicality and have industrial utilization.

1, the claw hook in the utility model 30 forms a flank 34 from the top to terminal, thereby has increased the ability that claw hook 30 meets with stresses; Moreover because circular arc body 35 inner faces that extend to form from flank 34 form an even surface 36, therefore when hook portion 33 hooks were consolidated bearing 40, even surface 36 can have more the structure of clamping; Because even surface 36 clamping bearings 40 places are maximum circular arc body 351, therefore can make the steadiness of clamping better again.

2, the claw hook in the utility model 30 has flank 34 structures, and be provided with circular arc body 35 by top to terminal the extension, therefore its overall structure is more firm more than claw hook structure commonly used, and has the shape of using minimum space and reach the effect that is enhanced to the max architecture holding capacity.

3, structure of the present utility model is quite firm, and its integral body has quite perfectly round impression, watches if claw hook stood upside down, just like the elapid effect of outfacing is quite attractive in appearance.

In sum, the improvement structure of the utility model claw hook is in structural design, the practicality of use and cost benefit aspect, and it is required to meet industry development really fully.

Claims

1, a kind of improvement structure of claw hook mainly comprises a drawbench body, and the place is provided with a containing part and is used to install oil pressure power set in the middle of the body, also is equiped with trace on the body, and the end of trace is provided with screw hole and is used to screw togather fixedly claw hook; The top of described claw hook that is characterised in that of the present utility model is provided with on screw that penetrates and the trace that is fixed to the drawbench body by screw; The end of claw hook is provided with an inside hook portion and makes it be able to the solid bearing of hook, the top of claw hook to terminal the extension is provided with a protrusion flank, this flank extends to form a circular arc body and forms maximum circular arc body in the claw hook end to both sides to terminal from screw, and the inner face of circular arc body forms an even surface.