CN202326781U

CN202326781U - Combined coupler

Info

Publication number: CN202326781U
Application number: CN 201120477756
Authority: CN
Inventors: 胡杰; 陈亮; 王朝襄; 陈思立
Original assignee: Xiangyang Boya Precision Industrial Equipments Co Ltd
Current assignee: Xiangyang Boya Precision Industrial Equipments Co Ltd
Priority date: 2011-11-27
Filing date: 2011-11-27
Publication date: 2012-07-11
Anticipated expiration: 2021-11-27

Abstract

The utility model discloses a combined coupler which is used for metal plate belt straightening equipment. On end of a rzeppa synchronous universal coupler, which is provided with a keyway, is connected with the worm shaft I of a multi-roll straightening machine screw down mechanism; a worm shaft II arranged at the other end which is not provided with a keyway is provided with an inner spacer bush; an adjusting screw is installed between the inner spacer bush and an inner tensioning sleeve; an outer tensioning sleeve is sheathed outside the inner tensioning sleeve; and the outer tensioning sleeve is sheathed in the hole of the rzeppa synchronous universal coupler. According to the utility model, one end of the rzeppa synchronous universal coupler is made into a hole with big diameter, a combined tensioning sleeve is put into one hole of the rzeppa coupler, and the rzeppa synchronous universal coupler and the worm shaft II can be conveniently and quickly locked and unlocked by the adjusting screw. When the operation side worm shaft and a transmission side worm shaft have a large coaxiality error, the synchronism of the worm shaft I and the worm shaft II still can be well guaranteed. Meanwhile, when the coupler is installed, the worm shaft I and the worm shaft II do not need to rotate, a working roll still can be guaranteed to be at a higher parallelism precision, and therefore the combined coupler is very convenient to assemble and disassemble.

Description

The combined type coupling

Technical field

The utility model relates to iron and steel and non-ferrous metal industry technical field, is a kind of combined type coupling that is used for the metal plate and belt equipment for straightening specifically.

Background technique

Coupling between multi-roll straightening machine screw-down fore side and the back flow side worm screw has expansion sleeve type coupling, the universal synchronous coupling of Rzeppa type and three kinds of forms of elastic dowel pin shaft coupling both at home and abroad at present; All there is different defects in these three kinds of coupling: (1) expansion sleeve type coupling is combined by two pairs of swelling covers and a transmission shaft; Though mounting or dismounting conveniently, all can guarantee fore side worm screw and back flow side worm screw any rotation not take place during mounting or dismounting; But this coupling requires very high to the coaxality between fore side worm screw and the back flow side worm screw; Because of the coaxiality error of two worm shafts can make two pairs of expansion sleeve type coupling strength of in rotary course, spraining each other, skidding appears between the swelling cover, this skid to accumulate will cause the inconsistent of fore side leading screw and back flow side leading screw displacement amount; And the moment of torsion of depressing motor is big more; This phenomenon is obvious more, and causing the multi-roll straightening machine top roll is that work roll and lower roll are the not parallel of work roll, because fore side worm screw and back flow side worm screw apart from each other; Coaxiality error between two worm shafts is difficult to control; Therefore it is also just inevitable to occur skidding with the expansion sleeve type coupling, will check frequently, adjust so up-down rollers is the parallelism of work roll, and working service is inconvenience extremely.(2) the universal synchronous coupling of Rzeppa type: even this coupling fore side worm shaft and back flow side worm shaft form an angle; Still can guarantee the synchronization accuracy of transmission; But will be when this coupling is installed and removed to the position of keyway; Cause fore side worm screw or back flow side worm screw when the dress coupling, certain rotation must be arranged, this rotation will influence the parallelism precision of work roll, influences the correction quality of strip.(3) elastic dowel pin shaft coupling: elastic dowel pin shaft coupling also is a kind of cased muff coupling; This coupling requires also very high to the coaxality of fore side worm shaft and back flow side worm shaft; When simultaneously this coupling assembles; Between fore side worm shaft and the back flow side worm shaft certain angle that relatively rotates will be arranged when also existing the pin-and-hole position, this rotation angle impacts the parallelism precision of work roll, thereby influences the final correction quality of strip.

Summary of the invention

For overcoming the deficiency of existing technology; The goal of the invention of the utility model is to provide a kind of combined type coupling; Universal synchronous coupling of Rzeppa type and swelling cover are combined, and the worm shaft of fore side and back flow side does not need any rotation, guarantees that two worm shafts have very high synchronization accuracy.

For realizing above-mentioned purpose, an end of the synchro-nizing universal coupling with ball and sacker band keyway of the utility model links to each other with the worm shaft one of multi-roll straightening machine screw-down; On the worm shaft two with the other end of keyway inner spacing collar is not housed; Adjusting screw is contained between inner spacing collar and the interior swelling cover; Be used to adjust the matching gap of outer swelling cover and synchro-nizing universal coupling with ball and sacker and interior swelling cover and worm shaft two; Interior swelling cover is outer to be with outer swelling cover, and outer swelling is sleeved in the hole of synchro-nizing universal coupling with ball and sacker.

the utility model compared with prior art; One end of synchro-nizing universal coupling with ball and sacker is made a hole that diameter is bigger; In the hole with combined type swelling suit goal cage coupling one end; Matching gap (or magnitude of interference) through the adjusting screw outer swelling cover of adjustment and synchro-nizing universal coupling with ball and sacker and interior swelling cover and worm shaft two; When there were big coaxiality error in fore side worm shaft and back flow side worm shaft, the synchronism of worm shaft one, two still can be guaranteed well; Simultaneously, when adorning this coupling, worm shaft one, two need not be done any rotation, can guarantee that work roll remains higher parallelism precision, installs and removes very convenient.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the enlarged view of the built-up section of Fig. 1.

Embodiment

Like Fig. 1, shown in Figure 2, an end of the synchro-nizing universal coupling with ball and sacker 2 band keyways of the utility model links to each other with the worm shaft 1 of multi-roll straightening machine screw-down; On the worm shaft 25 with the other end of keyway inner spacing collar 7 is not housed; Adjusting screw 4 is contained between inner spacing collar 7 and the interior swelling cover 6; Be with outer swelling cover 3 outside the interior swelling cover 6; Outer swelling cover 3 is contained in the hole of synchro-nizing universal coupling with ball and sacker 2; Through the outer swelling cover 3 of adjusting screw 4 adjustment and synchro-nizing universal coupling with ball and sacker 2 and interior swelling cover 6 matching gap (or magnitude of interference) with worm shaft 25, the effect of inner spacing collar 7 is that two interior swellings of control move axially distance when overlapping 6 swellings, prevent that the swelling cover from expanding too tightly after can't throw off.The tolerance of size of coupling endoporus is H7, surface roughness Ra 3.2, and outer swelling cover 3 passes through adjusting screw 4 with worm shaft 25 and synchro-nizing universal coupling with ball and sacker 2 swellings with interior swelling cover 6.

Worm shaft 1 in the fore side screw-down with depress the motor direct connection, 25 of the worm screws in the back flow side screw-down lean on this coupling transferring power, and require two worm shafts that very high synchronization accuracy is arranged.Because multi-roll straightening machine requires the parallelism of upper and lower work roll very high when correcting strip, the parallelism between the upper and lower work roll is checked, is adjusted its parallelism error≤0.03mm through the highi degree of accuracy leveling ruler.When this coupling of dress, fore side worm shaft 1 all can not have any rotation with back flow side worm shaft 25.Because it is that work roll and lower roll are the not parallel of work roll that wherein any worm shaft rotation will cause top roll, make strong strip flatness defects such as Bian Lang occur.

The utility model can be realized the Synchronous Transmission between the diaxon of certain drift angle; Outer swelling cover 3 can lock synchro-nizing universal coupling with ball and sacker 2 and worm shaft 25, unclamp with interior swelling cover 6 through adjusting screw 4 quickly and easily; During these combined type coupling mounting or dismounting, the worm shaft of fore side and back flow side does not need any rotation.

Claims

1. combined type coupling is characterized in that: an end of synchro-nizing universal coupling with ball and sacker (2) band keyway links to each other with the worm shaft one (1) of multi-roll straightening machine screw-down; On the worm shaft two (5) with the other end of keyway inner spacing collar (7) is not housed; Adjusting screw (4) is contained between inner spacing collar (7) and the interior swelling cover (6); Interior swelling cover (6) is outer to be with outer swelling cover (3), and outer swelling cover (3) is contained in the hole of synchro-nizing universal coupling with ball and sacker (2).