CN201267981Y - Dismounting tool for circular nut - Google Patents

Abstract

The utility model discloses a round-nut disassembling-assembling tool, which comprises a bushing, an universal connecting piece and a rotation seat, wherein, one end of the bushing is provided with a claw-shaped projection that is matched with a key slot of the round nut; one end of the universal connecting piece is connected with the other end of the bushing through a pin, and the other end of the universal connecting piece is connected with one end of the rotation seat through a pin; the other end of the rotation seat is provided with a wrench. The claw-shaped projection extends into the key slot of the round nut to be positioned, and the bushing is driven to rotate by pulling the wrench, so that the round nut is unscrewed, thereby preventing the damage and the failure of the round nut, and preventing the quality accident of the seamless steel pipe; the angle can be randomly adjusted according to the disassembling space through the universal connecting piece, so that the wrench is free from being influenced by the space, thereby reducing the disassembling-assembling difficulty and improving the work efficiency.

Description

The round nut dismantling device

Technical field

The utility model relates to the driving wheel dismounting technology of belt sander, more particularly, relates to a kind of round nut dismantling device, and this dismantling device can help dismounting round nut easily and fast.

Background technology

The abrasive belt grinding belt is to adopt high-accuracy weldless steel tube outer surface reconditioning process equipment comparatively widely at present.This polishing machine is provided with horizontal drive wheel and vertical drive wheel, is used to clamp steel pipe and makes its along continuous straight runs to the previous crops rotating operation.See also shown in Figure 1, the structure of above-mentioned two driving wheels 10 is basic identical, be installed on the output main shaft 1 of worm gear case, include wheel seat 11, wheel hub 12, end cap 13 and round nut 14, wheel hub 12 is located in the wheel seat 11 and is placed on the output main shaft, end cap 13 is located at wheel hub 12 1 ends, and by round nut 14 fixing tight locks.Wheel hub 12 outer surfaces are cast with synthetic rubber layer 121, play the protection seamless steel pipe and are squeezed and indeformable, damage.Because in use rubber layer 121 is easy to wear, so the driving wheel 10 that need more renew.Yet, the load because driving wheel 10 withstands shocks at work, for preventing to become flexible, this round nut 14 has adopted the plastic cement self-locking nut that reaches fine thread, have relatively high expectations to removing and installing, and because driving wheel 10 is installed in the space-constrained worm gear case, round nut 14 dismantling devices commonly used such as pipe vice, hook spanner all can't use.Can only adopt screwdriver to prop up the keyway of round nut 14 at present, and knock screwdriver by hand hammer and dismantle.But, the keyway of round nut 14 and self-locking are seriously damaged with plastic cement, cause that installation accuracy is low, self-locking property descends, in case loosening the escape takes place in round nut 14, driving wheel 10 can't be located and be produced axial displacement, easily causes quality accidents such as seamless steel pipe in the grinding bends, distortion; In addition, owing to have eight group of 16 cover driving wheel 10 on this polishing machine, it is frequent to change operation, and not only labour intensity is big for the dismounting mode that hand hammer knocks, and efficient is lower.

The utility model content

Above-mentionedly knock dismounting and easily make the impaired inefficacy of round nut, the little difficulty in dismounting space is big and operating efficiency is low shortcoming at what exist in the prior art, the purpose of this utility model provides a kind of round nut dismantling device, this dismantling device is the dismounting round nut easily and fast, and avoids round nut impaired.

For achieving the above object, the utility model adopts following technical scheme:

This round nut dismantling device comprises sleeve, universal connecting components and rotating seat, and sleeve one end is provided with the pawl type projection suitable with the round nut keyway; Universal connecting components one end and sleeve other end pin-connect, the other end and rotating seat one end pin-connect; The rotating seat other end is provided with spanner.

Described sleeve one end is provided with and the suitable endoporus of the output spindle nose of worm gear case, the other end radially have a groove and with the perpendicular pin-and-hole of groove.

Described rotating seat one end radially also have a groove and with the perpendicular pin-and-hole of groove, the other end is connected with a fixing projection, spanner one end is sheathed on fixedly on the projection.

Described universal connecting components one end vertically has pin-and-hole, and the other end laterally has pin-and-hole, is equipped with bearing in two pin-and-holes; The universal connecting components two ends are located at respectively in the groove of sleeve, rotating seat, and pass corresponding pin-and-hole by straight pin, with sleeve, rotating seat pin-connect.

In technique scheme, round nut dismantling device of the present utility model comprises sleeve, universal connecting components and rotating seat, and sleeve one end is provided with the pawl type projection suitable with the round nut keyway; Universal connecting components one end and sleeve other end pin-connect, the other end and rotating seat one end pin-connect; The rotating seat other end is provided with spanner.This dismantling device stretches in the round nut keyway by pawl type projection and positions, and drives the sleeve rotation by pulling spanner, thereby round nut is screwed out, and has avoided the impaired inefficacy of round nut, has prevented the generation of seamless steel pipe quality accident; Can adjust angle arbitrarily according to the dismounting space by universal connecting components, thereby make the spanner action not be subjected to spacial influence, reduce the dismounting difficulty, improve operating efficiency.

Description of drawings

Fig. 1 is the structure cutaway view of the belt sander driving wheel of prior art;

Fig. 2 is the structural representation of round nut dismantling device of the present utility model;

Fig. 3 is the cutaway view of the sleeve of dismantling device of the present utility model;

Fig. 4 is the left view of sleeve shown in Figure 3;

Fig. 5 is the structural representation of the universal connecting components of dismantling device of the present utility model;

Fig. 6 be the rotating seat shown in Fig. 2 along A-A to cutaway view;

Fig. 7 is the user mode schematic diagram of dismantling device of the present utility model.

The specific embodiment

Further specify the technical solution of the utility model below in conjunction with drawings and Examples.

See also shown in Figure 2, round nut dismantling device 20 of the present utility model comprises sleeve 21, universal connecting components 22 and rotating seat 23, please in conjunction with Fig. 3, shown in Figure 4, sleeve 21 1 ends are provided with and the suitable pawl type projection 211 of four keyways of round nut 14, can insert in the keyway of round nut 14, cooperate with round nut 14 closely; This end inside of sleeve 21 also is provided with and the suitable endoporus 212 in output main shaft 1 end of worm gear case, and when pawl type projection 211 inserted keyway, this endoporus 212 just in time was enclosed within on output main shaft 1 end, plays positioning action; The other end of sleeve 21 radially have a groove 24a and with the perpendicular pin-and-hole 25a of groove 24a.Please in conjunction with shown in Figure 6, an end of rotating seat 23 radially also have a groove 24b and with the perpendicular pin-and-hole 25b of this groove 24b, and the direction of rotating seat 23 groove 24b and sleeve 21 groove 24a are perpendicular; Rotating seat 23 other ends are connected with a fixing projection 231, and fixedly projection 231 is provided with a spanner 26, and spanner 26 can adopt common ratchet spanner, and spanner 26 1 ends are sheathed on fixedly on the projection 231, but and by pulling the 23 whole rotations of spanner 26 driven rotary seats.Please again in conjunction with shown in Figure 5, universal connecting components 22 whole rectangular bodies, the one end vertically has the corresponding pin-and-hole 25c with sleeve 21 pin-and-hole 25a, be provided with bearing in this pin-and-hole 25c, universal connecting components 22 these ends are located in the sleeve 21 groove 24a, and pass corresponding pin-and- hole 25a, 25c by straight pin 27, make universal connecting components 22 these ends and sleeve 21 pin-connects; The other end of universal connecting components 22 is the semicircle shape structure, its circle centre position laterally is provided with the corresponding pin-and-hole 25d with rotating seat 23 pin-and-hole 25b, also be provided with bearing in this pin-and-hole 25d, this end of universal connecting components 22 is located in the rotating seat 23 groove 24b, and pass corresponding pin-and- hole 25b, 25d by straight pin 27, make universal connecting components 22 these ends and rotating seat 23 pin-connects.Like this, behind sleeve 21 location, rotating seat 23 can be bobbed and woven along corresponding grooves 24a, 24b by universal connecting components 22, thereby can adjust the dismounting angle arbitrarily, guarantees that spanner 26 has enough spaces when pulling rotation.

Please in conjunction with shown in Figure 7, the operation principle of this dismantling device 20 is as follows: earlier sleeve 21 1 end pawl type projections 211 are inserted in the keyway of driving wheels 10 round nuts 14, and endoporus 212 is sheathed on output main shaft 1 end of worm gear case position; Then according to the location status of driving wheel 10, adjust the dismounting angle by universal connecting components 22, make rotating seat 23 and spanner 26 be in suitable position, pull spanner 26 this moment, rotating seat 23 rotations and drive universal connecting components 22 and sleeve 21 are rotated, thereby round nut 14 is unscrewed until unloading, just can be carried out the replacing of driving wheel 10; After replacing finishes,, round nut 14 is reinstalled on the output main shaft 1 by spanner 26 counter-rotatings, and with driving wheel 10 fixing tight locks.This dismantling device 20 not only is applicable to the dismounting of driving wheel 10 round nuts 14 of belt sander, and be equally applicable to the dismounting of other round nuts 14, its disassembly process easily and fast, can not cause damage fully to round nut 14, not only effectively guaranteed the auto-lock function of round nut 14, but also be not subjected to the influence of worm gear case small space, reduce the dismounting difficulty, thereby improved the replacing efficient of driving wheel 10 greatly.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.

Claims (4)

1. round nut dismantling device is characterized in that:

This dismantling device comprises sleeve, universal connecting components and rotating seat, and sleeve one end is provided with the pawl type projection suitable with the round nut keyway; Universal connecting components one end and sleeve other end pin-connect, the other end and rotating seat one end pin-connect; The rotating seat other end is provided with spanner.

2. round nut dismantling device as claimed in claim 1 is characterized in that:

Described sleeve one end is provided with and the suitable endoporus of the output spindle nose of worm gear case, the other end radially have a groove and with the perpendicular pin-and-hole of groove.

3. round nut dismantling device as claimed in claim 2 is characterized in that:

Described rotating seat one end radially also have a groove and with the perpendicular pin-and-hole of groove, the other end is connected with a fixing projection, spanner one end is sheathed on fixedly on the projection.

4. round nut dismantling device as claimed in claim 3 is characterized in that:

Described universal connecting components one end vertically has pin-and-hole, and the other end laterally has pin-and-hole, is equipped with bearing in two pin-and-holes; The universal connecting components two ends are located at respectively in the groove of sleeve, rotating seat, and pass corresponding pin-and-hole by straight pin, with sleeve, rotating seat pin-connect.

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