CN202576858U

CN202576858U - Biaxial needling machine

Info

Publication number: CN202576858U
Application number: CN 201220219413
Authority: CN
Inventors: 王卫成; 郑耀华
Original assignee: WEICHENG NON-WEAVING SYSTEM Co Ltd CHANGSHU
Current assignee: WEICHENG NON-WEAVING SYSTEM Co Ltd CHANGSHU
Priority date: 2012-05-16
Filing date: 2012-05-16
Publication date: 2012-12-05
Anticipated expiration: 2022-05-16

Abstract

The utility model relates to a biaxial needling machine, belonging to the technical field of non-woven machinery. The biaxial needling machine comprises a rack, a power transmission mechanism, a main shaft, an auxiliary shaft and an auxiliary shaft transition transmission mechanism, and is characterized in that the auxiliary shaft transition transmission mechanism comprises a first belt pulley, a second belt pulley, a transition belt pulley, a tensioning belt pulley and a transmission belt, the first belt pulley is fixed at the other end of the main shaft, the second belt pulley is fixed on the auxiliary shaft and corresponds to the first belt pulley, the transition belt pulley and the tensioning belt pulley are arranged on the rack, the transmission belt is sleeved on the first belt pulley, the second belt pulley, the transition belt pulley and the tensioning belt pulley, and a triangular position relationship is formed by the transition belt pulley, the tensioning belt pulley and the first belt pulley. The biaxial needling machine has the advantages that noise can be avoided; difficulties in manufacturing and installation can be reduced; the maintenance and replacement of bearing can be facilitated, the downtime can be shortened, and the operating efficiency can be ensured; and resources can be saved, and the cost can be reduced.

Description

The twin shaft needing machine

Technical field

The utility model belongs to field of non-weaving textile machinery technology, is specifically related to a kind of twin shaft needing machine

Background technology

so-called twin shaft needing machine is meant except main shaft (industry is claimed final drive shaft), also to have a countershaft (industry claim trunnion shaft) parallel with main shaft; The high-speed acupuncture requirement of the acupuncture functional adaptation of this structure is with the bondedfibre fabric in the raising unit interval such as the output of nonwoven fabric, on-woven felt etc.

The countershaft of twin shaft needing machine is rotated by mainshaft gear on the main shaft and being engaged with each other of the countershaft gear on the countershaft, and main shaft is driven by the power drive mechanism that is located on the frame.Specifically; Work along with power drive mechanism; Drive be in transmission connection with it and be bearing in the motion of main shaft on the frame rotationally; Drive the connecting rod that is arranged on the main shaft through eccentric disc by main shaft and move up and down, drive connected guide pillar by connecting rod and move up and down, and then move up and down by the needle-bar that guide pillar drives and it is fixing; Needle plate by needle-bar drives and it is fixing moves up and down, and the thorn that is arranged on the needle plate is closed to on-woven fiber entanglement property thorn.Meanwhile, be fixed on the countershaft gear on the countershaft as aforementioned by the mainshaft gear drive that is fixed on the main shaft, countershaft is rotated synchronously, the function of countershaft is that balancing frame is set.

The twin shaft needing machine of said structure form is that present on-woven production manufacturer generally uses; But there is following technical problem: one of which; Noise is big; The work on the spot environment is exerted an influence, because the motion of countershaft is to realize that through the countershaft gear that the mainshaft gear drive that is fixed on the main shaft is fixed on the countershaft gear motion between the major and minor shaft gear can produce serious noise; Its two because major and minor shaft gear wearing and tearing occur after through the use in one period, therefore not only and then increase noise, and influence the transmission effect, however cumbersome again in the time will changing major and minor shaft gear; They are three years old; Because major and minor axle all is an overall structure; The gate width of cloth (width) that is length and the processed bondedfibre fabric of major and minor axle adapts; Therefore in the time will carrying out maintaining and even change bearing the bearing on the bearing block that is used to support major and minor axle, the time that is spent usually need one to two day, thereby influences the operating efficiency of needing machine; Its four, in case damage can only integral replacing for main shaft and/or countershaft, both wasted resource, increase use cost again.

In view of above-mentioned prior art, be necessary to improve, the applicant has done useful design for this reason, and the technical scheme that will introduce below is based on producing under this prerequisite

Summary of the invention

The top priority of the utility model is to provide a kind of twin shaft needing machine that helps significantly to reduce noise and use the environment that improves operation field.

Another task of the utility model is to provide a kind of and helps significantly shortening the time of the bearing on the bearing block that maintaining and even replacing be used to support major and minor axle and use the operating efficiency that ensures needing machine and economize on resources and reduce use cost and use the economizing type of advocating with the whole society at present, the twin shaft needing machine that energy-saving economic spirit adapts with being of value to.

are for embodying the top priority of accomplishing the utility model; The technical scheme that the utility model provides is: a kind of twin shaft needing machine; Comprise frame, be arranged on an end top of frame power drive mechanism, through spindle bearing holder is bearing on the frame rotationally and an end and power drive mechanism are in transmission connection main shaft, through the counter shaft bearing seat be bearing in rotationally on the frame and with the parallel countershaft of main shaft be used for countershaft transition transmission mechanism that the other end of main shaft and countershaft enforcement are in transmission connection; Be characterised in that: described countershaft transition transmission mechanism comprises first, second belt pulley, transition belt pulley, idler and driving belt; First belt pulley is fixed on the end of the said other end of said main shaft; Second belt pulley is fixed on the said countershaft; And it is corresponding with described first belt pulley; Transition belt pulley and idler pivot are arranged on the said frame, and driving belt is nested with on first, second belt pulley, transition belt pulley and idler, wherein: transition belt pulley, idler and the first belt pulley three form leg-of-mutton position relation each other.

are for embodying another task of accomplishing the utility model; The technical scheme that the utility model provides is: described main shaft is made up of at least one first main shaft axis body sections and at least one second main shaft axis body sections identical with the diameter of the first main shaft axis body sections; Be provided with the main shaft axis body sections bindiny mechanism that is used for first, second main shaft axis body sections is connected to each other to one between first, second main shaft axis body sections; Described countershaft is made up of the second countershaft axis body sections of the equal diameters of at least one first countershaft axis body sections and at least one and the first countershaft axis body sections, and it is identical with the structure of described main shaft axis body sections bindiny mechanism to be provided with the structure of countershaft axis body sections bindiny mechanism, this countershaft axis body sections bindiny mechanism that is used for first, second countershaft axis body sections is connected to each other to one between first, second countershaft axis body sections.

are in one of the utility model concrete embodiment; The described first main shaft axis body sections towards an end of the described second main shaft axis body sections constitute one be projected on the surface of the first main shaft axis body sections first positioning key; And the second main shaft axis body sections constitute towards an end of the first main shaft axis body sections and in position corresponding to first positioning key one be projected on the surface of the second main shaft axis body sections equally second positioning key; And when the end face of first, second main shaft axis body sections is engaged with each other; The end face of described first, second positioning key is bonded with each other; Wherein: the shape of first, second positioning key is all identical with size, and described main shaft axis body sections bindiny mechanism jointly matches with first positioning key and second positioning key.

are in another concrete embodiment of the utility model; Described main shaft axis body sections bindiny mechanism comprises first brace and second brace; Constitute from one end to the other side first a semicircle chamber at the middle part of the length direction of first brace; Match with the said first main shaft axis body sections and the second main shaft axis body sections in this first semicircle chamber; Second brace is fixedly connected with first brace; Constitute from one end to the other side second a semicircle chamber at the middle part of the length direction of this second brace, this second semicircle chamber is corresponding with the said first semicircle chamber and match with the first main shaft axis body sections and the second main shaft axis body sections equally, wherein: constitute a location keyway in the bottom in the described first semicircle chamber and along the length direction in the first semicircle chamber; Described first positioning key is placed in an end of positioning spline, and described second positioning key is placed in the other end of positioning spline.

are in another concrete embodiment of the utility model; Middle part at the length direction of described first brace is arranged at intervals with one group of first screw hole; This is organized first screw hole and communicates with the described first semicircle chamber; And on each first screw hole, be equipped with one first screw, first screw contacts with second positioning key with described first positioning key; Each spaced apartly is provided with one group of second screw hole in the both sides of the length direction of first brace; Each spaced apartly is provided with one group of the 3rd screw hole in the both sides of the length direction of described second brace; And second, third screw hole corresponds to each other; On each second, third screw hole, be installed with one second screw jointly; By second screw with first, second brace each other obvolvent on the described first main shaft axis body sections and the second main shaft axis body sections, and described first, second main shaft axis body sections connected as one.

are in another concrete embodiment of the utility model; The radius in described first, second semicircle chamber is equal to each other, and the radius sum in the radius in the first semicircle chamber and the second semicircle chamber equals the diameter of the said first main shaft axis body sections and the second main shaft axis body sections.

also have among the concrete embodiment the utility model, and the shape of cross section of described first, second brace is the C font.

The technical scheme that the utility model provides because to have adopted type of belt drive be the countershaft transition transmission mechanism of driving belt transmission, thereby can be avoided noise and improves the environment of operation field; Owing to axis body is made up of first, second main shaft axis body sections respectively jointly, and countershaft is made up of first, second countershaft axis body sections respectively jointly, therefore can reduce and make and installation difficulty; In the time will or changing to the maintenance of the bearing maintenance on the major and minor axle bearing seat; As long as remove major and minor axis body sections bindiny mechanism, very help maintenance and replacing, and only need 20-30min to bearing; Thereby can shorten the downtime of needing machine, ensure operating efficiency; When the arbitrary axis body sections in first, second main shaft axis body sections and the countershaft axis body sections damages, can replace pointedly, therefore need not to resemble major and minor of the integral replacing of prior art, thereby can economize on resources and reduce use cost.

Description of drawings

Fig. 1 is the example structure figure of the utility model.

The sketch map that Fig. 2 matches with first, second main shaft axis body sections of main shaft for main shaft axis body sections bindiny mechanism shown in Figure 1.

The specific embodiment

can be expressly understood the technical spirit and the beneficial effect of the utility model more for the auditor that the makes Patent Office especially public; The applicant general elaborates with the mode of embodiment below; But the description to embodiment all is not the restriction to the utility model scheme, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be regarded as the technical scheme category of the utility model.

see also Fig. 1; Provided the frame 1 of twin shaft needing machine, the end at the top of this frame 1 is that the right-hand member of location status shown in Figure 1 is provided with a power drive mechanism 2, and is provided with a main shaft 3 and a countershaft 4 rotationally on the top of frame 1; Particularly; Main shaft 3 is bearing on the frame 1 with level through spindle bearing holder 33 rotationally, and countershaft 4 is bearing on the frame 1 with level through counter shaft bearing seat 43 rotationally, and major and minor 3,4 parallel.Wherein, an end of main shaft 3 is that illustrated right-hand member and aforesaid power drive mechanism 2 are in transmission connection, and main shaft 3 is provided with the connecting rod 35 of main shaft balancing disk 31 and eccentric motion.According to known technology, on connecting rod 35, connect guide pillar 351, the bottom of guide pillar 351 is needle-bar 3511 fixedly, and the needle plate 8 of needing machine is fixed on the needle-bar 3511, on needle plate 8, is furnished with pricker 81.On countershaft 4, be provided with stabilizer 44, stabilizer 44 is also claimed balancing disk.

aforesaid power drive mechanism 2 comprises motor 21, first, second drive 22,24 and driving belt 23; Motor 21 is fixed on the motor seat board 2121 through motor cabinet 212; And motor seat board 2121 is fixed on the top of the right-hand member (state shown in Figure 1) of frame 1; First drive 22 is fixed on the motor shaft 211 of motor 21; Second drive 24 is fixed on the countershaft 3, and an end of driving belt 23 is nested with on first drive 22, and the other end is nested with on second drive 24.

preferably, aforesaid first, second drive 22,24 all uses belt pulley, correspondingly, driving belt 23 uses driving belts.

drive countershaft 4 rotations in order to ensure by main shaft 3; Therefore be that the left end of location status shown in Figure 1 is provided with a countershaft transition transmission mechanism 5 at the other end of frame 1; Preferably but not the countershaft transition transmission mechanism 5 that definitely is limited to comprises first, second belt pulley 51,52, transition belt pulley 53, idler 54 and driving belt 55; The other end that first belt pulley 51 is fixed on main shaft 3 is left end (location status shown in Figure 1); Second belt pulley 52 is fixed on the countershaft 4 and is corresponding with first belt pulley 51; Transition belt pulley 53 is arranged on the frame 1 with idler 54 rotationally; And form leg-of-mutton position relation between transition belt pulley 53, idler 54 and first belt pulley, 51 threes, driving belt 55 is nested with on first, second belt pulley 51,52, transition belt pulley 53 and idler 54 according to the mode of illustrating among Fig. 1.

Fig. 1 is continued to see in , and aforesaid transition belt pulley 53 is arranged on the transition belt pulley axle bed 532 through its transition Pulley shaft 531 pivots, and transition belt pulley axle bed 532 is fixed on the frame 1.Aforesaid idler 54 is arranged on the tightening belt axle block 542 through its tightening belt wheel shaft 541 pivots, and tightening belt axle block 542 is removable or claim to be arranged on adjustably on the frame 1.

respectively offer adjustment screw slots 5421 (having four) at the two ends on the top of the length direction of aforesaid tightening belt axle block 542 and the two ends of bottom; Be equipped with an adjustment screw 5422 in the position corresponding to each adjustment screw slots 5421, adjustment screw 5422 is fixing with frame 1.

are provided with a tightening belt axle block adjusting device 11 on frame 1 and in the position corresponding to aforesaid tightening belt axle block 542; This tightening belt axle block adjusting device 11 comprises bolt and nut 11, screw rod cover 112 and screw rod 113; Bolt and nut 111 is fixed on the tightening belt axle block 542; Screw rod cover 112 is fixed on the frame 1, and an end of screw rod 1113 matches with bolt and nut 111, and the other end matches with screw rod cover 112.When clockwise turn screw rod 113, drive of the direction displacement of tightening belt axle blocks 542 by screw rod 113 through bolt and nut 111 towards screw rod cover 112, vice versa, to regulate the position of idler 54, makes the tightness of driving belt 55 be able to adjustment.

are under the work of the motor 21 of power drive mechanism 2; Drive first drive 22 by motor shaft 211, drive second drive 24 through driving belt 23, because second drive 24 is fixed on the main shaft 3; Therefore main shaft 3 rotations; Drivening rod 35 moves up and down, and drives guide pillar 351 by connecting rod 35 and moves up and down, and drives needle-bar 3511 by guide pillar 351 and moves up and down.Because it is fixing with needle-bar 3511 to be furnished with the needle plate 8 of pricker 81, therefore drives needle plate 8 by needle-bar 3511 and moves up and down, and is closed by 81 pairs of on-woven fiber entanglement property thorns by way of its below of pricker, forms on-woven product such as nonwoven fabric, on-woven felt or blanket or the like.Meanwhile, promptly in main shaft 3 motions, drive countershaft 4 motions through countershaft transition transmission mechanism 5.Specifically: the transition of first belt pulley 51 through driving belt 55 by being fixed on the main shaft 3 makes second belt pulley, 52 motions that are fixed on the countershaft 4.

see also Fig. 2 and continue to combine Fig. 1; Aforesaid main shaft 3 by two promptly two first main shaft axis body sections 31 constitute with two second main shaft axis body sections 32, first, second main shaft axis body sections 31, between 32 through 6 connections of main shaft axis body sections bindiny mechanism.The applicant need to prove: the quantity of first, second main shaft axis body sections 31,32 does not receive illustrated restriction; For example when the door width of cloth of twin shaft needing machine adaptation on-woven product is 5 meters; First, second main shaft axis body sections 31,32 respectively is one (one) so, and promptly the length of first, second main shaft axis body sections 31,32 respectively is 2.5 meters.Countershaft 4 equally by two promptly two first countershaft axis body sections 41 with two promptly two second countershaft axis body sections 42 constitute, first, second countershaft axis body sections 41, pass through identical countershaft axis body sections bindiny mechanism of structure and main shaft axis body sections bindiny mechanism 67 between 42 and be connected.

emphasis is seen Fig. 2; The first main shaft axis body sections 31 towards an end of the second main shaft axis body sections 32 constitute one be projected on the surface of the first main shaft axis body sections 31 first positioning key 311; And the second main shaft axis body sections 32 towards an end of the first main shaft axis body sections 31 constitute one be projected on the surface of the second main shaft axis body sections 32 second positioning key 321, and shape, size and the equal in length of first, second positioning key 311,321.When the end joined that faces each other of first, second main shaft axis body sections 31,32, first, second positioning key 311,321 also is engaged with each other into state shown in Figure 2.Undoubtedly, the diameter of first, second main shaft axis body sections 311,321 is identical.An end that is engaged with each other at first, second main shaft axis body sections 31,32 and corresponding to the position of first positioning key 311 and second positioning key 321 aforesaid main shaft axis body sections bindiny mechanism 6 is being set jointly; By this main shaft axis body sections bindiny mechanism 6 first, second positioning key 311,321 is connected, promptly constitute main shaft 3 thereby first, second main shaft axis body sections 31,32 is connected as one.

aforesaid first positioning key 311 both can directly be formed on the first main shaft axis body sections 31; Also can on the first main shaft axis body sections 31, process positioning spline 36 earlier; First positioning key 31 is placed in the positioning spline 36, second positioning key 32 is as the description to first positioning key 31 again.

aforesaid main shaft axis body sections bindiny mechanism 6 preferably but not the structure that definitely is limited to is following: comprise first brace 61 and second brace 62; This first, second brace 61,62 also can be referred to as first, second Hough (English name is half), and the equal in length of first, second brace 61,62.Shown in figure, the shape of cross section of first, second brace 61,62 is the C font substantially.

are at the middle part of the length direction of first brace 61 and constitute an end from first brace 61 towards a side of second brace 62 and connect the first semicircle chamber 611 to the other end; Offer a location keyway 6111 in the bottom in this first semicircle chamber 611 and the length direction in the first semicircle chamber 611, edge; Aforesaid first positioning key 311 matches with an end (left end of shown position state) of positioning spline 6111; Promptly first positioning key 311 is placed in the left end of positioning spline 6111; And second positioning key 321 matches with the other end (right-hand member of shown position state) of positioning spline 6111, and promptly second positioning key 321 is placed in the right-hand member of positioning spline 6111.Again; Middle part at the length direction of first brace 61 is arranged at intervals with one group of first screw hole 612 that promptly communicates with positioning spline 6111 that all communicates with the aforesaid first semicircle chamber 611; On each first screw hole 412, revolve and be furnished with one first screw 6121; After in first screw 6121 screws in first screw hole 612, just contact, play locking action first positioning key 311 with first positioning key 311 corresponding to first screw 612 at first positioning key, 311 places.With example, contact with second positioning key 321 corresponding to first screw 612 at second positioning key, 321 places, play locking action to second positioning key 321.And each spaced apartly is provided with one group of second screw hole 613 in the both sides of the length direction of first brace 61.

are at the middle part of the length direction of second brace 62 and constitute an end from second brace 62 towards a side of first brace 61 and connect the second semicircle chamber 621 to the other end, and each spaced apartly is provided with one group of the 3rd screw hole 622 in the both sides of the length direction of second brace 62.When screwing in second, third screw hole 613,622 with second screw 614; Just first, second brace 61,62 is connected as one; Make first, second brace 61,62 obvolvents on main shaft 3, first, second main shaft axis body sections 31,32 is fixedly connected (joint).

The radius in aforesaid first, second semicircle chamber 611,621 is identical, and the radius sum in first, second semicircle chamber 611,621 equals the diameter of main shaft 3.

are because the mode that is connected to each other and the countershaft axis body sections bindiny mechanism 7 of first, second countershaft axis body sections 41,42 of countershaft 4 are identical with first, second main shaft axis body sections 31,32 and main shaft axis body sections bindiny mechanism 6; Therefore can obtain understanding according to the reason of drawing inferences about other cases from one instance fully, the applicant repeats no more in view of the above.

are example with main shaft 3, and said structure is for the manufacturer of twin shaft needing machine, and the work of machining spindle 3 becomes simply, and easy for installation.Equally; For the on-woven production manufacturer that uses needing machine; Maintaining or title inspection are also very convenient; For example when implementing to safeguard or when changing,, and under the state of opening spindle bearing holder 33, first, second main shaft axis body sections 31,32 is moved apart in spindle bearing holder 33 so as long as removal main shaft axis body sections bindiny mechanism 6 to the bearing on the spindle bearing holder 33 that is used to support the first main shaft axis body sections 31 and the second main shaft axis body sections 32.The utility model scheme is owing to break the whole up into parts the tediously long promptly whole main shaft 3 in the prior art; Promptly be divided into the first main shaft axis body sections 31 and the second main shaft axis body sections 32; Therefore the time of the bearing of maintaining and even replacing spindle bearing holder 33 () only needs 20-30min; Thereby can shorten downtime, improve the operating efficiency of twin shaft needing machine.Especially; In the use of reality, the bearing that all spindle bearing holders 33 generally can not occur all decreases situation, therefore; When will be with regard to the bearing replacing of a certain spindle bearing holder 33 or maintenance; So as long as after withdrawing main shaft axis body sections bindiny mechanism 6, carry out maintain and replace to the bearing of the spindle bearing holder 33 of the supporting first main shaft axis body sections 31 or the second main shaft axis body sections 32, will own (at least one pair of) bearing block removal thereby need not to resemble the prior art.In addition, if first, second main shaft axis body sections 31,32 arbitrary damages, but specific aim is changed so, to economize on resources, alleviates use cost.Statement to countershaft 4 is routine together.

The technical scheme that provides of the utility model has been accomplished the invention task in sum, has reached goal of the invention, has embodied technique effect alleged in the technique effect hurdle comprehensively

Claims

1. a kind of twin shaft needing machine; Comprise frame (1), be arranged on the power drive mechanism (2) on an end top of frame (1), through spindle bearing holder (33) is bearing in rotationally that frame (1) goes up and an end and power drive mechanism (2) are in transmission connection main shaft (3), be bearing on the frame (1) and countershaft (4) that walk abreast with main shaft (3) rotationally and be used for the countershaft transition transmission mechanism (5) that the other end and countershaft (4) enforcement with main shaft (3) are in transmission connection through counter shaft bearing seat (43); It is characterized in that: described countershaft transition transmission mechanism (5) comprises first, second belt pulley (51,52), transition belt pulley (53), idler (54) and driving belt (55); First belt pulley (51) is fixed on the end of the said other end of said main shaft (3); Second belt pulley (52) is fixed on the said countershaft (4); And it is corresponding with described first belt pulley (51); Transition belt pulley (53) and idler (54) pivot are arranged on the said frame (1); Driving belt (55) is nested with on first, second belt pulley (51,52), transition belt pulley (53) and idler (54), wherein: transition belt pulley (53), idler (54) and first belt pulley (51) three form leg-of-mutton position relation each other.

2. twin shaft needing machine according to claim 1; It is characterized in that described main shaft (3) is made up of at least one first main shaft axis body sections (31) and at least one second main shaft axis body sections (32) identical with the diameter of the first main shaft axis body sections (31); Be provided with the main shaft axis body sections bindiny mechanism (6) that is used for first, second main shaft axis body sections (31,32) is connected to each other to one between first, second main shaft axis body sections (31,32); Described countershaft (4) is made up of the second countershaft axis body sections (42) of the equal diameters of at least one first countershaft axis body sections (41) and at least one and the first countershaft axis body sections (41), and it is identical with the structure of described main shaft axis body sections bindiny mechanism (6) to be provided with the structure of countershaft axis body sections bindiny mechanism (7), this countershaft axis body sections bindiny mechanism (7) that is used for first, second countershaft axis body sections (41,42) is connected to each other to one between first, second countershaft axis body sections (41,42).

3. twin shaft needing machine according to claim 2; It is characterized in that the described first main shaft axis body sections (31) towards an end of the described second main shaft axis body sections (32) constitute one be projected on the surface of the first main shaft axis body sections (31) first positioning key (311); And the second main shaft axis body sections (32) constitute towards an end of the first main shaft axis body sections (31) and in position corresponding to first positioning key (311) one be projected on the surface of the second main shaft axis body sections (32) equally second positioning key (321); And when the end face of first, second main shaft axis body sections (31,32) is engaged with each other; The end face of described first, second positioning key (311,321) is bonded with each other; Wherein: the shape of first, second positioning key (311,321) is all identical with size, and described main shaft axis body sections bindiny mechanism (6) jointly matches with first positioning key (311) and second positioning key (321).

4. twin shaft needing machine according to claim 3; It is characterized in that described main shaft axis body sections bindiny mechanism (6) comprises first brace (61) and second brace (62); Constitute from one end to the other side first a semicircle chamber (611) at the middle part of the length direction of first brace (61); Match with the said first main shaft axis body sections (31) and the second main shaft axis body sections (32) in this first semicircle chamber (611); Second brace (62) is fixedly connected with first brace (61); Constitute from one end to the other side second a semicircle chamber (621) at the middle part of the length direction of this second brace (62); This second semicircle chamber (621) is corresponding with the said first semicircle chamber (611) and match with the first main shaft axis body sections (31) and the second main shaft axis body sections (32) equally; Wherein: constitute a location keyway (6111) in the bottom in the described first semicircle chamber (611) and the length direction in the first semicircle chamber (611), edge, described first positioning key (311) is placed in an end of positioning spline (6111), and described second positioning key (321) is placed in the other end of positioning spline (6111).

5. twin shaft needing machine according to claim 4; It is characterized in that being arranged at intervals with one group of first screw hole (612) at the middle part of the length direction of described first brace (61); This is organized first screw hole (612) and communicates with the described first semicircle chamber (611); And on each first screw hole (612), be equipped with one first screw (6121), first screw (6121) contacts with second positioning key (321) with described first positioning key (311); Each spaced apart one group of second screw hole (613) that be provided with of both sides at the length direction of first brace (61); Each spaced apart one group of the 3rd screw hole (622) that be provided with of both sides at the length direction of described second brace (62); And second, third screw hole (613,622) corresponds to each other; On each second, third screw hole (613,622), be installed with one second screw (614) jointly; By second screw (614) with first, second brace (61,62) each other obvolvent on the described first main shaft axis body sections (31) and the second main shaft axis body sections (32), and described first, second main shaft axis body sections (31,32) connected as one.

6. twin shaft needing machine according to claim 4; The radius that it is characterized in that described first, second semicircle chamber (611,621) is equal to each other, and the radius sum in the radius in the first semicircle chamber (611) and the second semicircle chamber (621) equals the diameter of the said first main shaft axis body sections (31) and the second main shaft axis body sections (32).

7. According to claim 4 or 5 described twin shaft needing machines, it is characterized in that the shape of cross section of described first, second brace (61,62) is the C font