CN101776120A

CN101776120A - Split combined crankshaft

Info

Publication number: CN101776120A
Application number: CN201019026081A
Authority: CN
Inventors: 虞敏; 宣维良; 虞罗照; 石建强; 景素珍
Original assignee: Jintan Tiansheng Mechanical Mfg Co ltd
Current assignee: Jintan Tiansheng Mechanical Mfg Co ltd
Priority date: 2010-02-08
Filing date: 2010-02-08
Publication date: 2010-07-14

Abstract

A split combined crankshaft is composed of left and right shaft heads and a locating bolt, which are fastened together by the locating bolt through an end face meshing structure. The crankshaft is designed into a split combined structure, the eccentric shaft is divided, and the whole crankshaft consists of a left shaft head, a right shaft head and a positioning bolt, so that a rolling bearing can be installed between the connecting rod big head hole and the eccentric shaft, and the supporting mode of the crankshaft eccentric shaft and the connecting rod big head hole by a sliding bearing of a bearing bush is changed into the supporting mode of a rotating bearing.

Description

The separate assembling bent axle

Technical field:

The present invention relates to the auxiliary weft insertion air feeder of pipeline fin-type jet loom, refer more particularly to the auxiliary weft insertion air feed pump.

Background technique:

The claimant has developed a kind of high-efficiency and energy-saving type pipeline fin-type jet loom of providing source of the gas for oneself, adopt the multistage continuous air feed filling insertion way of " main nozzle+a plurality of pilot jets+conduit sheet type air-flow path ", provide source of the gas by the auxiliary weft insertion air pump for pilot jet, this auxiliary weft insertion air pump has been arranged, pipeline fin-type jet loom does not need to dispose in addition air compressor plant, and the high speed that every loom can both carry out broad fabrics is separately weaved.This auxiliary weft insertion air pump is the core component in the auxiliary weft insertion air feeder, and the separate assembling bent axle is the part of most critical in the auxiliary weft insertion air pump.

Summary of the invention:

For make the auxiliary weft insertion air pump when work not to the joint dropping lubricant oil of bent axle and connecting rod, the present invention provides a kind of separate assembling bent axle for the auxiliary weft insertion air pump.

A kind of separate assembling bent axle, it is characterized in that: it is made up of left spindle nose, right spindle nose and holding down bolt, described left spindle nose comprises left main shaft, left equilibrium block, left avertence axle, be provided with left main shaft in the left side of left equilibrium block, be provided with the left avertence axle on the right side of left equilibrium block, left side main shaft and left avertence axle are parallel to each other, and throw of eccentric between the two is 30～50 millimeters; Described right spindle nose comprises right main shaft, right equilibrium block, right avertence axle, be provided with right main shaft on the right side of right equilibrium block, be provided with the right avertence axle in the left side of right equilibrium block, right main shaft is parallel with the right avertence axle, and throw of eccentric between the two is identical with throw of eccentric between left main shaft and the left avertence axle, is tightened to one by the end face meshing engagement structure by holding down bolt between left spindle nose and the right spindle nose.

Further, the end face meshing engagement structure between left spindle nose and the right spindle nose is: be provided with the end face locating slot on the right side of left avertence axle, be provided with tapped hole at the center of left avertence axle; Be provided with the location convex body in the left side of right avertence axle, be provided with counter sink at the center of right avertence axle, location convex body and end face locating slot are meshing with each other, and holding down bolt passes counter sink on the right avertence axle and is screwed in the tapped hole on the left avertence axle.

Further, the throw of eccentric between left main shaft and left avertence axle is 30 millimeters.

Because crankshaft designs is become the split composite structure, and on the eccentric shaft of bent axle, carry out somatotype, whole bent axle is made up of left spindle nose, right spindle nose and holding down bolt, just rolling bearing can be installed between crank pin end pore and the eccentric shaft like this, change the supporting means of rotary bearing between crankshaft eccentric shaft and the crank pin end pore into by the sliding supported condition mode of bearing shell, adopt this structure, herein lubricated need not to use lubricating oil, thereby do not contain lubricant mist in the gas of assurance air pump output, air-jet loom is when work, and institute's fabric that obtains can be by contaminated with oil mist.

Description of drawings:

Fig. 1, Fig. 2 are structural representations of the present invention, and Fig. 2 is an A-A sectional view among Fig. 1;

Fig. 3, Fig. 4, Fig. 5 are the structural representations of left spindle nose, and Fig. 4 is the plan view of Fig. 3, and Fig. 5 is the right elevation of Fig. 3;

Fig. 6, Fig. 7, Fig. 8 are the structural representations of right spindle nose, and Fig. 7 is the plan view of Fig. 6, and Fig. 8 is the right elevation of Fig. 6;

Among the figure, 1-left side spindle nose; The right spindle nose of 2-; The 3-holding down bolt; 11-left side main shaft; 12-left side equilibrium block; 13-left avertence axle; 14-end face locating slot; The 15-tapped hole; The right main shaft of 21-; The right equilibrium block of 22-; 23-right avertence axle; 24-locatees convex body; The 25-counter sink.

Embodiment:

Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing:

Described separate assembling bent axle, extremely shown in Figure 8 as Fig. 1, it is made up of left spindle nose 1, right spindle nose 2 and holding down bolt 3, described left spindle nose 1 is made up of left main shaft 11, left equilibrium block 12, left avertence axle 13, end face locating slot 14, tapped hole 15, be provided with left main shaft 11 in the left side of left equilibrium block 12, be provided with left avertence axle 13 on the right side of left equilibrium block 12, both are parallel to each other a left side main shaft 11 and left avertence axle 13, throw of eccentric between the two is 30 millimeters, end face locating slot 14 is arranged on the right side of left avertence axle 13, and tapped hole 15 is arranged on the center of left avertence axle 13; Described right spindle nose 2 is by right main shaft 21, right equilibrium block 22, right avertence axle 23, location convex body 24, counter sink 25 is formed, be provided with right main shaft 21 on the right side of right equilibrium block 22, be provided with right avertence axle 23 in the left side of right equilibrium block 22, both are parallel for right main shaft 21 and right avertence axle 23, and throw of eccentric between the two is 30 millimeters, be provided with location convex body 24 in the left side of right avertence axle 23, location convex body 24 is meshed with end face locating slot 14 on left avertence axle 13 right sides, fixedly connected by holding down bolt 3 between a left side spindle nose 1 and the right spindle nose 2, holding down bolt 3 passes counter sink 25 on the right avertence axle 23 and spins with tapped hole 15 on the left avertence axle 13 and be integral, be to locate by the engagement of end face locating slot 14 and location convex body 24 between left avertence axle 13 and the right avertence axle 23, and accurately locate and be tightened to one by holding down bolt 3.

Embodiments of the present invention are a lot, the structure that is located by connecting of left avertence axle 13 and right avertence axle 23 can also adopt the structure that is connected with a joggle of the key and the groove of end face thorn claw, cross type, its purpose all is the same,

left avertence axle

13 and 23 coaxial connections of energy of right avertence axle, and can transmitting torque.The position of mold joint can be arranged on any position of eccentric shaft, its objective is on eccentric shaft rolling bearing can be installed.

Claims

1. separate assembling bent axle, it is characterized in that: it is made up of left spindle nose (1), right spindle nose (2) and holding down bolt (3), described left spindle nose (1) comprises left main shaft (11), left equilibrium block (12), left avertence axle (13), be provided with left main shaft (11) in the left side of left equilibrium block (12), be provided with left avertence axle (13) on the right side of left equilibrium block (12), left side main shaft (11) and left avertence axle (13) are parallel to each other, and throw of eccentric between the two is 30～50 millimeters; Described right spindle nose (2) comprises right main shaft (21), right equilibrium block (22), right avertence axle (23), be provided with right main shaft (21) on the right side of right equilibrium block (22), be provided with right avertence axle (23) in the left side of right equilibrium block (22), both are parallel for right main shaft (21) and right avertence axle (23), and throw of eccentric is identical between throw of eccentric between the two and left main shaft (11) and the left avertence axle (13), is tightened to one by the end face meshing engagement structure by holding down bolt (3) between left spindle nose (1) and the right spindle nose (2).

2. according to the described separate assembling bent axle of claim 1, it is characterized in that: the end face meshing engagement structure between left spindle nose (1) and the right spindle nose (2) is: be provided with end face locating slot (14) on the right side of left avertence axle (13), be provided with tapped hole (15) at the center of left avertence axle (13); On the left side of right avertence axle (23), be provided with location convex body (24), be provided with counter sink (25) at the center of right avertence axle (23), location convex body (24) is meshing with each other with end face locating slot (14), and holding down bolt (3) passes counter sink (25) on the right avertence axle (23) and is screwed in the tapped hole (15) on the left avertence axle (13).

3. according to the described separate assembling bent axle of claim 1, it is characterized in that: the throw of eccentric between left main shaft (11) and left avertence axle (13) is 30 millimeters.