CN201406507Y - Roller assembly with improved drafting mechanism of flax wet spinning frame - Google Patents

Abstract

A roller assembly with an improved drafting mechanism of a flax wet spinning frame comprises roller shafts, roller sheathes and an enclosed rolling bearing. The roller shafts are rotatably supported on the roller stand of the original drafting mechanism, and the roller sheathes are arranged on the roller shafts on the two sides of the roller stand respectively. The roller assembly is characterizedin that the roller shaft is supported on the roller stand of the original drafting mechanism through the enclosed rolling bearing. The roller shafts are coaxially connected by use of a guide post threaded connection structure. The roller assembly has reasonable structure and relatively lower transformation cost, and can completely solve the common faults of the original drafting mechanism, improve the evenness of linen yarn and reduce energy consumption and cost, thereby remarkably improving the product marketability and economic benefit of users and promoting the technological progress and development of China's flax wet spinning industry.

Description

The roller part of improved flax wet spinning frame drafter

Technical field

The utility model relates to the transformation to the drafter (roller part) of traditional FX502 type flax wet spinning frame, is the main function components of one group of flax wet process equipment.

Background technology

For a long time, in the flax wet industry, the roller part of traditional spinning equipment drafter nearly all adopts similar structure, i.e. open sliding supported condition structure of halfliner (as shown in Figure 1) and flat recess type syndeton (except that drawing rollers, as shown in Figure 2).Among Fig. 1, below the open halfliner 2 by roller stand 3 supportings, above the working position supporting roller shaft 4, roller cover 1 is installed on roller shaft 4.The pressure of open halfliner 2 carrying pressurization rollers, and the radially free degree of control roller shaft rotate each roller track in accordance with regulations, meet the spun yarn that certain specification requires to reach the technological action of roving-drafting and to spin out.Behind the pressure of needing for each roller loading process; the frictional resistance of halfliner formula sliding supported condition structure is relatively large; need the good lubricated running operating mode that could guarantee roller shaft; even the running operating mode of roller shaft is good; because complete machine has 126 pairs of above-mentioned sliding frictions and pays; for driving the running of complete machine roller; the required power consumption of transmission system is also very big; almost account for more than 40% of complete machine consumed power; and, cause black thread because the limitation of flax wet technology and open supporting structure often has lubricating oil and added the generation leakage; product rejection or lubricating oil are added lacked and cause bearing shell to sting roller, the situation that parts were lost efficacy takes place.Among Fig. 2, because flax wet spinning frame is the parallel long vehicle structures of many ingots, each roller all by head, in, many joints such as tail form, what the head of the afterbody of front one joint and relative back one joint adopted relatively is the falcon formula syndeton 5 of flat recess type, with the cephalocaudal transmission of the torque that roller shaft 4 is rotated.Because the joint face of the falcon formula syndeton 5 of flat recess type has certain clearance, it is low to connect precision, and along with the growths of machine hours, the aggravation of joint face wearing and tearing, this gap can be increasing, the running accuracy of each roller also can be more and more lower, produces circular runout and increase, roller shaft phenomenon such as make a pause in the running, cause the bar evenness of spun yarn to descend, and the decline of product quality certainly will cause the competitiveness of product in market to descend, and enterprise is sustained a loss.

Summary of the invention

The utility model proposes the modification scheme that the roller part of FX502 type flax wet spinning frame drafter is adopted enclosed rolling bearing supporting structure and guide pillar screw-type syndeton; bigger to solve the frictional resistance that existing halfliner formula sliding supported condition structure exists; operating load is big; energy consumption is big; often have lubricating oil and added the generation leakage; cause black thread; product rejection or lubricating oil are added lacked and cause bearing shell to sting roller; parts were lost efficacy; and the falcon formula syndeton of flat recess type connection precision is low; the running accuracy of each roller is low; circular runout is big, and roller shaft is made a pause in the running, and the spun yarn bar is done problems such as inhomogeneous.

The technical solution of the utility model is: comprise roller shaft and roller cover, the roller shaft rotational support is on the roller stand of former machine, the roller cover is housed respectively on the roller shaft of these roller stand both sides, it is characterized in that: described roller shaft and roller cover pass through a closed type rolling bearings on the roller stand of former machine.

Described roller shaft can dock in segmentation, adopt the coaxial connection of guide pillar screw-type syndeton between the roller shaft of butt joint, this guide pillar screw-type syndeton comprises the screw that is located at roller shaft one an end axle center and the positioning guide column hole adjacent with this screw, constitute with screw rod that is located at another end, root roller shaft butt end and the positioning guide column adjacent with this screw rod, this screw rod is screwed onto the interior formation of described screw and is threaded accurately, forms accurate localization by positioning guide column hole and positioning guide column.

Described closed type rolling bearing comprises outer ring, inner ring, needle roller and retainer, between outer ring and inner ring, a plurality of needle rollers that are uniformly distributed along the circumference are installed by retainer, inner peripheral surface at the two ends of described outer ring respectively is provided with at least one water and dirt isolation channel along circumference, outer peripheral face at the two ends of described inner ring respectively is provided with the groove along circumference, and the sealing ring of " O " type is housed in this groove.

The beneficial effects of the utility model are: this roller part is rational in infrastructure, improvement cost is relatively low, can thoroughly solve the common bad phenomenon of former machine roller part, improve the evenness quality of linen thread and yarn, reduce energy consumption, reduce cost, thereby can use the competitiveness of product in market of producer and economic benefit to be greatly improved, and promote the technological progress and the development of China's flax wet industry.

Description of drawings

Fig. 1 is the schematic diagram of the open sliding supported condition structure of existing halfliner;

Fig. 2 is the schematic diagram of the falcon formula syndeton of existing roller cover flat recess type;

Fig. 3 is the closed type rolling bearing support structure schematic diagram that the utility model relates to;

Fig. 4 is the guide pillar screw-type syndeton schematic diagram that the utility model relates to;

Fig. 5 is the structural representation of closed type rolling bearing of the present utility model;

Fig. 6 is the enlarged drawing at I place among Fig. 5.

The specific embodiment

Referring to Fig. 3～Fig. 6, the utility model comprises roller shaft 4, closed type rolling bearing 6, roller stand 3 and roller cover 1, and roller shaft 4 is supported on the described roller stand 3 by closed type rolling bearing 6.Roller cover 1 is housed respectively on two roller shafts 4 at closed type rolling bearing 6 two ends.

Referring to Fig. 4, adopt the coaxial connection of guide pillar screw-type syndeton between the described roller shaft, this guide pillar screw-type syndeton comprises the screw that is located at roller shaft 4 one end axle center and is located at the screw head 7 of another end, root roller shaft 4 butt end and the positioning guide column 8 adjacent with this screw head 7 constitutes that this screw head 7 is screwed onto in the described screw.Positioning guide column 8 can make the axle center of two roller shafts 4 of mutual butt joint accurately overlap the location.

Referring to Fig. 5 and Fig. 6, described closed type rolling bearing 6 comprises outer ring 64, inner ring 61, needle roller 62 and retainer 63, by retainer 63 a plurality of needle rollers that are uniformly distributed along the circumference 62 are installed between outer ring 64 and inner ring 61, the inner peripheral surface at the two ends of described outer ring 64 respectively is provided with at least one water and dirt isolation channel 65 along circumference.

Outer peripheral face at the two ends of described inner ring 61 respectively is provided with the groove along circumference, and the sealing ring 66 of " O " type is housed in this groove.

Below the closed type rolling bearing with water and dirt isolation channel 65 6 of the present utility model by roller stand 3 supportings, this bearing 6 is supporting roller shaft 4 and is rotatablely moving accurately, under identical pressure and operating mode, owing to pay with respect to sliding friction, the mechanical efficiency that rolling friction is paid has improved 3～4 times, therefore, the required power consumption of transmission system also declines to a great extent, the highlyest can descend 75%, the power consumption of complete machine is the highest can to descend 30%, and owing to adopted closed type rolling bearing 6 with water and dirt isolation channel 65, both water and dirt can be isolated in outside the workspace of bearing, also unnecessary lubricating oil can be isolated in the controlled scope, stop to produce the situation of black thread, and the rotatablely moving by the inside and outside raceway and needle roller 62 supportings of bearing of roller shaft, roller shaft 4 does not have relative motion with fastness, can not produce wearing and tearing, improve the running accuracy of roller shaft 4 greatly, reduce the consumption of machine part.The joint face of guide pillar screw-type syndeton does not have relative motion among Fig. 4, can not wear and tear, and the connection precision height of this syndeton, can not produce the phenomenon of making a pause, therefore the shaft run-out of complete machine roller can be controlled in the 0.05mm, and the evenness quality branch of spun yarn can improve 5～8 fens.

Closed type rolling bearing support structure that the utility model relates to and guide pillar screw-type syndeton can be transformed the roller part of the drafter of traditional FX502 type flax wet spinning frame and the flax wet spinning frame of similar structures.Only need during transformation a complete set of roller shaft and the correlated parts of former machine are unloaded, change the related components that the utility model relates to and get final product, needn't carry out extra processing or big change former machine.

Claims (3)

1, a kind of roller part of improved flax wet spinning frame drafter, comprise roller shaft and roller cover, the roller shaft rotational support is on the roller stand of former machine, the roller cover is housed respectively on the roller shaft of these roller stand both sides, it is characterized in that: described roller shaft and roller cover pass through a closed type rolling bearings on the roller stand of former machine.

2, the roller part of improved flax wet spinning frame drafter according to claim 1, it is characterized in that: described roller shaft segmentation butt joint, adopt the coaxial connection of guide pillar screw-type syndeton between the roller shaft of butt joint, this guide pillar screw-type syndeton comprises the screw that is located at roller shaft one an end axle center and the positioning guide column hole adjacent with this screw, constitute with screw rod that is located at another end, root roller shaft butt end and the positioning guide column adjacent with this screw rod, this screw rod is screwed onto the interior formation of described screw and is threaded accurately, forms accurate localization by positioning guide column hole and positioning guide column.

3, the roller part of improved flax wet spinning frame drafter according to claim 1, it is characterized in that: described closed type rolling bearing comprises outer ring, inner ring, needle roller and retainer, between outer ring and inner ring, a plurality of needle rollers that are uniformly distributed along the circumference are installed by retainer, inner peripheral surface at the two ends of described outer ring respectively is provided with at least one water and dirt isolation channel along circumference, outer peripheral face at the two ends of described inner ring respectively is provided with the groove along circumference, and the sealing ring of " O " type is housed in this groove.

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