CN205266148U

CN205266148U - Cutter shaft

Info

Publication number: CN205266148U
Application number: CN201520991485.5U
Authority: CN
Inventors: 叶一舟; 叶建华; 翁晓华
Original assignee: Zhejiang Sixi Agricultural Machinery Co Ltd
Current assignee: Zhejiang Sixi Agricultural Machinery Co Ltd
Priority date: 2015-12-04
Filing date: 2015-12-04
Publication date: 2016-06-01
Anticipated expiration: 2025-12-04

Abstract

The utility model discloses a cutter shaft. The utility model discloses change into present cup jointing each other again by multistage sword ring A (2) with original integral cutter shaft and cup joint with sword ring B (3) and axle A (1), axle B (5), at last with the fixed mode of nut. The process of so not only having simplified the installation and having dismantled simultaneously because cutter shaft no longer is whole processing forms, but is formed by the concatenation of sword ring, with regard to like this greatly reduced because the draw ratio that original whole processing brought was big, the problem of processing difficulty to the precision of cutter shaft processing has been improved.

Description

A kind of cutter shaft

Technical field

The utility model relates to rotary cultivator accessory field, particularly relates to a kind of cutter shaft.

Background technology

Rotary cultivator is a kind of. Take rotary cutter tooth as the driving type soil cultivation machinery of working part, also known as rotary tillage machine. Cutter tooth as working part is arranged on cutter shaft, and the power come from engine is transferred on cutter tooth by cutter shaft. From aforementioned it will be seen that cutter shaft is parts extremely important rotary cultivator. But current cutter shaft is not only installed, dismantled inconvenience, and processing also inconvenient, the particularly cutter shaft of some heavy-duty rotary tillage machines, owing to its length-to-diameter ratio is relatively big, therefore difficulty of processing is higher.

Practical novel content

Following technical scheme is provided: a kind of cutter shaft in order to overcome above-mentioned defect and not enough the utility model, described cutter shaft comprises axle A, cutter ring A, cutter ring B, axle B and nut, described axle A comprises axle section I, axle section II and axle section III, above-mentioned three axle sections are arranged with one heart, axle section I is arranged on an end face of axle section II, axle section III is arranged on another end face of axle section II, described cutter ring A comprises axle section first and axle Duan Yi, two axle sections of cutter ring A are also arranged with one heart, not to be provided with on the end face of axle section on cutter ring A concentric is provided with a blind hole I, the degree of depth of described blind hole I is not less than the length of described axle Duan Yi, described cutter ring B comprises the axle section �� and axle section �� of setting with one heart, described axle section �� is not provided with and concentric on an end face of axle section is provided with a blind hole II, the degree of depth of described blind hole II is not less than the length of described axle Duan Yi, described axle B comprises the axle section a ' and axle section b ' of setting with one heart, the outside screw that outside surface at axle section b ' is provided with described nut matches, described axle section b ' is not provided with and concentric on an end face of axle section is provided with a blind hole III, the degree of depth of described blind hole III is not less than the length of described axle section ��, described axle section III and described blind hole I, blind hole I described in described axle Duan Yiyu, blind hole II described in described axle Duan Yiyu and described axle section �� mates mutually with described blind hole III, the former can insert in the latter's blind hole easily axle section, and power and moment of torsion can be transmitted by the cooperation of the two, rotary cultivator is cut soil blade and is arranged on described axle section first and described axle section ��.

During installation, the first step, installs taper roller bearing respectively, and the inner ring making bearing is close to the shaft shoulder position of axle section II and axle section b ' on the axle section a ' of the axle section I and axle B of axle A. 2nd step, is separately fixed at axle A and axle B on the bearing support of the rotary cultivator support left and right sides. 3rd step, is screwed in nut on axle section b ', and is inserted completely in the blind hole III on axle B by the axle section �� on cutter ring B. 4th step, is socketed in cutter ring A on axle A, and the axle section III on axle A is inserted in the blind hole I on cutter ring A completely. 5th step, is socketed on the cutter ring A installed above successively one by one by more cutter ring A as required, and the axle section second on a front cutter ring A is inserted in the blind hole I on a rear cutter ring A completely. 6th step, constantly turns nut, promotes cutter ring B to move, until the axle section second overlapped on last cutter ring A connected is inserted in the blind hole II on cutter ring B completely above. Last fastening nut, cutter shaft installation. Now, screw thread on nut and the threaded portion on the axle section b ' of axle B screw, and the outstanding axle B of nut end face is provided with the end face of blind hole III, this outstanding end face tightening cutter ring B on nut is provided with the end face of axle section ��, and this outstanding end face on nut and axle B are provided with between the end face of blind hole III and leave enough gaps.

During dismounting, after first nut is return back to the end face that axle B is provided with blind hole III, then cutter ring B and last cutter ring A are separated. Such cutter shaft has just been broken.

As preferably, the axle of the closed figure of described axle section III and blind hole II and described axle section �� described in blind hole I, described axle Duan Yiyu described in described blind hole I, described axle Duan Yiyu can be the polygon shaft mutually mate and hole or ellipse axle and hole or the figure on the cross section being perpendicular to its axis with described blind hole III be a band circular arc than a circular one and hole.

Compared with prior art, the utility model has following useful effect: original monoblock type cutter shaft is changed into present being mutually socketed by multistage cutter ring A and is socketed with cutter ring B and axle A, axle B, the mode finally having nut fixing not only simplify the process installed and dismantle, become owing to cutter shaft is no longer overall processing simultaneously, but by cutter ring; Being spliced, it is big just to greatly reduce like this length-to-diameter ratio brought due to original overall processing, the problem of processing difficulties, thus improves the precision of cutter shaft processing.

Accompanying drawing explanation

Fig. 1 is the stereographic map of the only cutter shaft of a joint cutter ring A in the utility model first enforcement mode.

Fig. 2 is the complete section stereographic map of the only cutter shaft of a joint cutter ring A in the utility model first enforcement mode.

Fig. 3 is that the utility model first implements mode axis A stereographic map.

Fig. 4 is cutter ring A stereographic map in the utility model first enforcement mode.

Fig. 5 is cutter ring B stereographic map in the utility model first enforcement mode.

Fig. 6 is that the utility model first implements mode axis B stereographic map.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is done explanation in detail.

Enforcement mode one

Fig. 1 is the stereographic map of the only cutter shaft of band one joint cutter ring A2 in the utility model first enforcement mode. A kind of cutter shaft as shown in Figure 1, described cutter shaft comprises axle A1, cutter ring A2, cutter ring B3, axle B5 and nut 4.

As shown in Figure 3, described axle A1 comprises axle section I1a, axle section II1b and axle section III1c, and above-mentioned three axle sections are arranged with one heart, and axle section I1a is arranged on an end face of axle section II1b, and axle section III1c is arranged on another end face of axle section II1b.

As shown in Figure 4, described cutter ring A2 comprises axle section first 2a and axle section second 2b, two axle sections of cutter ring A2 are also arranged with one heart, and that cutter ring A2 is not provided with on the end face of axle section is concentric is provided with a blind hole I2c, and the degree of depth of described blind hole I2c is not less than the length of described axle section second 2b.

As shown in Figure 5, described cutter ring B3 comprises the axle section �� 3a and axle section �� 3b of setting with one heart, not being provided with on described axle section �� 3a and concentric on an end face of axle section be provided with a blind hole II3c, the degree of depth of described blind hole II3c is not less than the length of described axle section second 2b.

As shown in Figure 6, described axle B5 comprises the axle section a ' 5a and axle section b ' 5b of setting with one heart, the outside screw that outside surface at axle section b ' 5b is provided with described nut 4 matches, not being provided with on described axle section b ' 5b and concentric on an end face of axle section be provided with a blind hole III5c, the degree of depth of described blind hole III5c is not less than the length of described axle section ��.

Described axle section III1c and described blind hole I2c, described axle section second 2b and described blind hole I2c, described axle section second 2b and described blind hole II3c and described axle section �� 3b and described blind hole III5c are square, the former can insert in the latter's blind hole easily completely at axle section, and power and moment of torsion can be transmitted by the cooperation of the two, the soil blade of cutting of rotary cultivator is arranged on described axle section first 2a and described axle section �� 3a.

During installation, the first step, installs taper roller bearing respectively on the axle section a ' 5a of the axle section I1a and axle B5 of axle A1, and the inner ring making bearing is close to axle section II1b and the shaft shoulder position of axle section b ' 5b. 2nd step, is separately fixed at axle A1 and axle B5 on the bearing support of the rotary cultivator support left and right sides. 3rd step, is screwed in nut 4 on axle section b ' 5b, and is inserted completely in the blind hole III5c on axle B5 by the axle section �� 3b on cutter ring B3. 4th step, is socketed in cutter ring A2 on axle A1, and the axle section III1c on axle A1 is inserted in the blind hole I2c on cutter ring A2 completely. 5th step, is socketed in more cutter ring A2 on the cutter ring A2 installed above as required successively one by one, the axle section second 2b on a front cutter ring A2 is inserted in the blind hole I2c on a rear cutter ring A2 completely. 6th step, constantly turns nut 4, promotes cutter ring B3 to move, until the axle section second 2b overlapped on last cutter ring A2 connected inserts in the blind hole II3c on cutter ring B3 completely above. Last fastening nut 4, cutter shaft installation. Now, threaded portion on nut 4 and the screw thread on the axle section b ' 5b of axle B screw, and the outstanding axle B5 of nut 4 end face is provided with the end face of blind hole III5c, this outstanding end face tightening cutter ring B3 on nut 4 is provided with the end face of axle section �� 3b, and this outstanding end face on nut 4 and axle B5 are provided with between the end face of blind hole III5c and leave enough gaps.

During dismounting, after first nut 4 being return back to the end face that axle B is provided with blind hole III5c, then cutter ring B3 and last cutter ring A2 are separated. Such cutter shaft has just been broken.

Compared with prior art, the utility model has following useful effect: original monoblock type cutter shaft is changed into present being mutually socketed by multistage cutter ring A and is socketed with cutter ring B and axle A, axle B, last nutted mode not only simplify the process installed and dismantle, become owing to cutter shaft is no longer overall processing simultaneously, but by cutter ring; Being spliced, it is big just to greatly reduce like this length-to-diameter ratio brought due to original overall processing, the problem of processing difficulties, thus improves the precision of cutter shaft processing.

Enforcement mode two

Enforcement mode two is substantially identical with enforcement mode one, and difference is that described axle section III1c and described blind hole I2c, described axle section second 2b and described blind hole I2c, described axle section second 2b and described blind hole II3c and described axle section �� 3b and described blind hole III5c are ellipse.

Enforcement mode three

Enforcement mode three is substantially identical with enforcement mode one, and difference is that described axle section III1c and described blind hole I2c, described axle section second 2b and described blind hole I2c, described axle section second 2b and described blind hole II3c and described axle section �� 3b and described blind hole III5c are circle and lack shape.

Below the utility model has been described in detail, but the utility model is not limited to embodiment described herein. It is understood by those skilled in the art that when not deviating from the utility model scope, it is possible to make other changes and distortion. Protection domain of the present utility model is defined by the following claims.

Claims

1. a cutter shaft, it is characterized in that, described cutter shaft comprises axle A(1), cutter ring A(2), cutter ring B(3), axle B(5) and nut (4), described axle A(1) comprise axle section I(1a), axle section II(1b) and axle section III(1c), above-mentioned three axle sections are arranged with one heart, axle section I(1a) be arranged on axle section II(1b) an end face on, axle section III(1c) be arranged on axle section II(1b) another end face on, described cutter ring A(2) comprise axle section first (2a) and axle Duan Yi (2b), cutter ring A(2) two axle sections also arrange with one heart, cutter ring A(2) on not to be provided with on the end face of axle section concentric is provided with a blind hole I(2c), described blind hole I(2c) the degree of depth be not less than the length of described axle Duan Yi (2b), described cutter ring B(3) comprise the axle section �� (3a) and axle section �� (3b) that arrange with one heart, described axle section �� (3a) is not provided with and concentric on an end face of axle section is provided with a blind hole II(3c), described blind hole II(3c) the degree of depth be not less than the length of described axle Duan Yi (2b), described axle B(5) comprise the axle section a ' (5a) and axle section b ' (5b) that arrange with one heart, the outside screw that outside surface at axle section b ' (5b) is provided with described nut (4) matches, described axle section b ' (5b) is not provided with and concentric on an end face of axle section is provided with a blind hole III(5c), described blind hole III(5c) the degree of depth be not less than the length of described axle section �� (3b), described axle section III(1c) and described blind hole I(2c), described axle Duan Yi (2b) and described blind hole I(2c), described axle Duan Yi (2b) and described blind hole II(3c) and described axle section �� (3b) and described blind hole III(5c) mate mutually, the former can insert in the latter's blind hole easily axle section, and power and moment of torsion can be transmitted by the cooperation of the two, rotary cultivator is cut soil blade and is arranged on described axle section first (2a) and described axle section �� (3a).

2. a kind of cutter shaft according to claim 1, it is characterized in that, described axle section III(1c) with described blind hole I(2c), described axle Duan Yi (2b) and described blind hole I(2c), described axle Duan Yi (2b) and described blind hole II(3c) and described axle section �� (3b) and described blind hole III(5c) axle of closed figure of can be the polygon shaft and hole or ellipse axle and hole that mutually mates or the figure on the cross section being perpendicular to its axis be a band circular arc than a circular one and hole.