CN201179601Y

CN201179601Y - Screw installation apparatus

Info

Publication number: CN201179601Y
Application number: CNU2008201075965U
Authority: CN
Inventors: 郑顺和
Original assignee: Hefei Smarter Technology Co Ltd
Current assignee: Hefei Smarter Technology Group Corp
Priority date: 2008-04-03
Filing date: 2008-04-03
Publication date: 2009-01-14
Anticipated expiration: 2018-04-03

Abstract

The utility model relates to the technical field of mounting a plastic extruder screw, in particular to a screw mounting device. The device comprises a machine barrel containing a screw and a headstock positioned at an end head of the machine barrel, wherein a sleeve with an enclosed end is fixedly sleeved on the end head of the machine barrel through the headstock; and a lead screw is in thread fit with an opening on an enclosed end face of the sleeve, and is butted with an end head of the screw. The screw mounting device turns the helical motion of the lead screw into the uniform rectilinear translation of the screw, thereby avoiding the beating and impact on the front portion of the screw caused by the prior shock mounting method, reducing the labor intensity in mounting and increasing the mounting speed for the screw.

Description

The screw rod erecting device

Technical field

The utility model relates to screw of plastic extruder mounting technique field, is specifically related to a kind of screw rod erecting device.

Background technology

For plastic extruder, screw rod often will be dismantled and be installed.The common way that present people install screw rod is: screw rod is advanced in the machine barrel, the end face that makes screw rod have external splines contacts with the internal spline end face of reducer output shaft, rotate the belt pulley on the decelerator then, make the position of engagement fit of screw head external splines and reducer output shaft internal spline, impact screw head with copper rod again, screw rod is moved to decelerator, mesh fully until inside and outside spline.The set-up time of this impact installation method is long, labour intensity is high, and fragile screw head.

Summary of the invention

The purpose of this utility model provides a kind of screw rod erecting device, and it makes screw rod installation in position and organizing work apace, has reduced the labour intensity of installing and has avoided the distortion of screw rod end.

For achieving the above object, the utility model has adopted following technical scheme: a kind of screw rod erecting device, comprise machine barrel that holds screw rod and the headstock that is positioned at the machine barrel end, the sleeve of one end sealing is located at the end of machine barrel by the headstock fixed cover, and the opening on screw mandrel and the sleeve Closed End is threaded engagement and leans on the termination of screw rod.

As shown from the above technical solution, the utility model utilizes the headstock of machine barrel end to be fixed with the sleeve of end sealing, utilizes Closed End that screw mandrel passes sleeve to lean the termination of screw rod again, realizes installation in position safely and fast at last.From the above, the utility model changes the screw of screw mandrel the straight motion of screw rod into, thereby has avoided former impact that the beat impact of method to screw head is installed, and has reduced labour intensity of installing and the installation rate that has improved screw rod.

Description of drawings

Fig. 1 is the mounting structure schematic diagram of screw rod;

Fig. 2 is the structure for amplifying schematic diagram of A portion among Fig. 1.

The specific embodiment

As shown in Figure 1, 2, a kind of screw rod erecting device, comprise machine barrel 20 that holds screw rod 10 and the headstock 30 that is positioned at machine barrel 20 ends, the sleeve 40 of one end sealing is located at the end of machine barrel 20 by headstock 30 fixed covers, and screw mandrel 50 is threaded engagement and leans on the termination of screw rod 10 with opening on sleeve 40 Closed Ends.

When screw rod 10 installation in position, earlier screw rod 10 is pushed in the machine barrel 20, make screw rod 10 have the end face of external splines and the internal spline end face of reducer output shaft 60 keeps in touch, again sleeve 40 is fixed on the headstock 30, opening on screw mandrel 50 and sleeve 40 Closed Ends is a threaded engagement, this moment, rotary screw rod 50 leaned on the termination of screw rod 10 it, and make between the internal spline end face of the external splines end face of screw rod 10 and reducer output shaft 60 and keep certain pretightning force, belt pulley 70 on the slow rotation decelerator treats that rotary screw rod 50 was in place with screw rod 10 propellings again after interior external splines meshed fully again.

From the above, the utility model changes the screw of screw mandrel 50 the straight motion of screw rod 10 into, has avoided former impact that the beat impact of method to screw rod 10 termination portions is installed, thereby has improved production efficiency, alleviate labour intensity, avoided the termination portion of screw rod 10 impaired.

As preferred version of the present utility model, the center line of the center line of described screw mandrel 50 and screw rod 10 coincides.

It also is that screw mandrel 50 is on same the straight line with screw rod 10 that the center line of the center line of described screw mandrel 50 and screw rod 10 coincides, in this case, the termination portion of screw rod 10 is stressed comparatively balanced, has avoided the possibility of screw rod 10 eccentric forces, thereby has made the installation of screw rod 10 safer simple and direct.

As the further preferred version of the utility model, described screw mandrel 50 coincide mutually with the shape that screw rod 10 leans the place.Because screw rod 10 and screw mandrel 50 end face at the place of leaning mutually are coniform and outwards give prominence to; after so the shape that makes screw mandrel 50 and screw rod 10 lean the place is coincide mutually; when screw mandrel 50 is spinned motion; screw mandrel 50 significantly reduces with the degree of wear at screw rod 10 places of leaning; thereby protected the termination portion of screw rod 10, and prolonged the working life of screw mandrel 50.

As preferred version of the present utility model, as shown in Figure 2, described sleeve 40 is made of sleeve pipe 41 and the end cap 42 that is fixed on sleeve pipe 41 1 ends, and the opening on screw mandrel 50 and the end cap 42 is threaded engagement and leans on the termination of screw rod 10.

As mentioned above, sleeve 40 is set to the sleeve pipe 41 and the end cap 42 of split, can access timely replacing after can making in installation process often stressed end cap 42 impaired, has reduced the consumption and the production cost of material thus.

As the further preferred version of the utility model, as shown in Figure 2, described screw mandrel 50 is provided with top cover 51 with the place of leaning of screw rod 10, and screw mandrel 50 and top cover 51 are for being slidingly matched.

When be provided with between screw mandrel 50 and the screw rod 10 with screw mandrel 50 for the top cover 51 that is slidingly matched after; when screw mandrel 50 is spinned motion; top cover 51 does not rotate but lead-screw 10 is done straight motion; therefore there is not abrasion condition between top cover 51 and the screw rod 10; greatly protected the termination portion of screw rod 10 thus; and to overlap 51 volumes less on the top of often wearing and tearing, is convenient to change and save material.

As the utility model preferred version further, as shown in Figure 2, described top cover 51 coincide mutually with the shape that screw rod 10 leans the place.This setup can make top cover 51 bigger, stressed more even with the contact area of screw rod 10, thereby has protected screw rod 10 better, and has prolonged working life of the present utility model.

Claims

1, a kind of screw rod erecting device, comprise machine barrel (20) that holds screw rod (10) and the headstock (30) that is positioned at machine barrel (20) end, it is characterized in that: the sleeve (40) of end sealing is located at the end of machine barrel (20) by headstock (30) fixed cover, and screw mandrel (50) is threaded engagement and leans on the termination of screw rod (10) with opening on sleeve (40) Closed End.

2, screw rod erecting device according to claim 1 is characterized in that: the center line of the center line of described screw mandrel (50) and screw rod (10) coincides.

3, screw rod erecting device according to claim 1, it is characterized in that: described sleeve (40) is made of sleeve pipe (41) and the end cap (42) that is fixed on sleeve pipe (41) one ends, and screw mandrel (50) is threaded engagement and leans on the termination of screw rod (10) with opening on the end cap (42).

4, according to each described screw rod erecting device of claim 1～3, it is characterized in that: described screw mandrel (50) is provided with top cover (51) with the place of leaning of screw rod (10), and screw mandrel (50) and top cover (51) are for being slidingly matched.

5, screw rod erecting device according to claim 2 is characterized in that: described screw mandrel (50) coincide mutually with the shape that screw rod (10) leans the place.

6, screw rod erecting device according to claim 4 is characterized in that: described top cover (51) coincide mutually with the shape that screw rod (10) leans the place.