CN210461690U - Wear-resistant sealing structure for single-screw glue outlet pump - Google Patents

Abstract

The utility model relates to a wear-resisting seal shaft sleeve specifically is a wear-resisting seal structure that is used for single screw rod to go out gluey pump. The spiral belt type speed reducer comprises a motor, a speed reducer, a cylinder body, a rotating shaft, a spiral belt and a rotating shaft integrated structure, wherein a spiral shaft with the spiral belt is arranged at the upper part of the rotating shaft, a main shaft is arranged at the lower part of the rotating shaft, the main shaft is in key connection with a hollow shaft, the hollow shaft is connected with a shaft sleeve, the shaft sleeve is sleeved on the rotating shaft, and the shaft sleeve is in clearance fit. Compared with the prior art, the shaft sleeve has the advantages of simple structure, convenient replacement after abrasion, low maintenance frequency and contribution to improving the yield and quality of products.

Description

Wear-resistant sealing structure for single-screw glue outlet pump

Technical Field

The utility model relates to a wear-resisting seal shaft sleeve specifically is a wear-resisting seal structure that is used for single screw rod to go out gluey pump.

Background

Traditional 110 gluey discharging system uses integral rotation axis to go out gluey pump, the rotation axis is 304 and 40Cr group welding, 110 raw rubber relies on self weight to get into behind the equipment, rotation through the rotation axis, it is whole to it produces ascending thrust, thereby accomplish ejection of compact work, and at equipment operation in-process, because of the rotation axis, relative rotation produces the friction between skeleton oil blanket and the tetrafluoro packing, and lead to the rotation axis to be worn and torn after the operation in the long-time high temperature environment, the impurity that the wearing and tearing produced leads to product quality unqualified in getting into the product. Secondly, the stuffing box is sealed to lose efficacy due to abrasion of the rotating shaft, so that 110 glue leaks from the stuffing box, material waste is caused, and environmental sanitation is influenced. The rotating shaft can only be integrally replaced once being seriously abraded, so that the equipment maintenance cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve above-mentioned problem, provide a wear-resisting sealed axle sleeve that is used for 110 crude rubber discharging system single screw to go out to glue the pump.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a wear-resisting seal structure for single screw rod goes out glue pump, includes the motor, the speed reducer, the barrel, the rotation axis, the spiral shell area, rotation axis formula structure as an organic whole, rotation axis upper portion is the screw axis that has the spiral shell area, and the rotation axis lower part is the main shaft, passes through the key-type connection between main shaft and the quill shaft, and quill shaft and bushing are connected, and the axle sleeve suit is on the rotation axis, and axle sleeve and rotation axis clearance fit.

Adopt above-mentioned technical scheme the utility model discloses, compare with prior art, its outstanding characteristics are: effectively reduces the generation of impurities, improves the product quality, shortens the maintenance time, saves the maintenance cost, is convenient to disassemble and assemble, reduces the labor intensity, and is suitable for production with higher load.

Preferably, the present invention further provides:

the top end of the inner ring of the shaft sleeve and the bottom end of the inner ring are respectively provided with a processing groove, the bottom of the shaft sleeve is provided with a stabilizing hole, and a set screw connected with the hollow shaft is arranged in the stabilizing hole. The stable hole is arranged to prevent the shaft sleeve and the screw shaft from rotating relatively to cause abrasion of the O-shaped ring and sealing failure.

The main shaft and the hollow shaft are connected through a double bond.

And a sealing ring is arranged in the processing groove.

Drawings

Fig. 1 is a schematic structural view of a single-screw glue outlet pump.

Fig. 2 is a schematic view of an assembly structure of a rotating shaft and a shaft sleeve.

Fig. 3 is a cross-sectional view of the bushing.

Fig. 4 is a right side view of fig. 3.

Fig. 5 is an end view of the hollow shaft.

Fig. 6 is a schematic view of a flange structure.

Reference numerals:

the oil level gauge comprises a motor 1, a speed reducer 2, a lock nut 3, a retaining pad 4, a bearing gland 5, a tapered roller bearing 6, a hollow shaft 7, an oil level gauge 8, a rotating shaft 9, a stuffing box 10, a shaft sleeve 11, a cylinder 12, an oil seal gland 13, an oil seal seat 14, a bearing box 15, an intermediate flange 16, a bearing seat 17, a bearing gland 18, a cylindrical roller bearing 19, a cooling water jacket 20, a spiral belt 21, a stabilizing hole 22 and a key 23.

Detailed Description

Referring to fig. 1 to 6, a wear-resistant sealing shaft sleeve for a single-screw glue pump, a motor 1 is connected with a speed reducer 2 through a flange, the speed reducer 1 is connected with a rotating shaft 9 through a key, the rotating shaft 9 is of an integral structure (with a step), the upper part of the rotating shaft 9 is a rotating shaft with a spiral belt, the lower part of the rotating shaft 9 is a main shaft, the main shaft is connected with a hollow shaft 7 through a double key, one end of a shaft sleeve 11 is fixed on the hollow shaft 7 through a set screw, the structure of the shaft sleeve 11 is as shown in fig. 3, the shaft sleeve 11 is just sleeved on the step part of the step-shaped rotating shaft 9, the shaft sleeve 11 is in clearance fit with. Through the fixed axle sleeve of tight set screw, the dismouting of being convenient for shortens maintenance time, practices thrift the cost of overhaul, reduces intensity of labour.

The upper end and the lower end of the shaft sleeve 11 are respectively contacted with the shaft shoulder of the rotating shaft 9, the top end of the inner ring and the bottom end of the inner ring of the shaft sleeve 11 are respectively provided with a processing groove, and a fluororubber O-shaped sealing ring is arranged in each processing groove for sealing, so that the double-sealing effect is achieved. The bottom of the shaft sleeve 11 is provided with a stabilizing hole 22, a set screw arranged on the stabilizing hole 22 of the shaft sleeve 11 is fixed on the hollow shaft 7, and the hollow shaft 7 is also provided with a threaded hole corresponding to the position of the stabilizing hole 22 and used for connecting and fixing the bottom of the shaft sleeve 11 and the hollow shaft 7. Seal through 3 rings oil-retaining tetrafluoro packing and 3 fluororubber skeleton oil seals between 11 outer lanes of axle sleeve and the stuffing box 10, adopt D307 wear-resisting electrode build-up welding on the 11 surface of axle sleeve, finish turning makes 11 roughness of axle sleeve reach 0.8. The stabilizing hole 22 is arranged to prevent the shaft sleeve 11 and the rotating shaft 9 from rotating relatively to cause abrasion of an O-shaped ring and sealing failure.

The lower extreme shaft extension department of rotation axis 9 is equipped with the processing screw thread, locks rotation axis 9 through lock nut 3 and stopping pad 4, prevents rotation axis 9 vertical runout, and bearing box 15 upper end bearing frame 17 department is provided with cylindrical roller bearing 19, and bearing box 15 lower extreme bearing frame 17 department is provided with tapered roller bearing 6, and the internal and external lane play should be adjusted to regulation numerical value. The cylindrical roller bearing 19 and the tapered roller bearing 6 are arranged to ensure the coaxiality of the rotating shaft 9 to balance the axial force, so that the rotating shaft 9 can stably operate.

Spiral ribbon 21 revolves to being the dextrorotation, and rotation axis 9 direction of rotation is clockwise, and spiral ribbon 21 forms fixed clearance with the feed cylinder inner wall, wholly produces ascending thrust to the material, prevents that the material from piling up downwards and leading to stuffing box 10 to leak. The parts of the spiral belt 21, the rotating shaft 9, the oil seal seat 14 and the cylinder 12 which are in direct contact with the materials are all made of stainless steel materials, high temperature resistance is achieved, impurities are not easy to generate, the cleaning and maintaining frequency of the equipment is reduced, and the product yield is improved.

The stuffing box 10 and the outer ring of the shaft sleeve 11 are sealed through 3 circles of oil-containing PTFE packing and 3 fluororubber framework oil seals, the outer ring of the bearing and the bearing seat 17 are made of base holes, the inner ring of the bearing and the hollow shaft are made of base shafts, and the bearing gland 18 and the bearing seat 17 are sealed through a fluororubber O-shaped ring and a nitrile rubber framework oil seal.

During the use, 110 crude rubber gets into barrel 12 along the pan feeding direction, and motor 1 and speed reducer 2 drive rotation axis 9 are rotatory, and rotation axis 9 clockwise rotates, wholly produces ascending thrust to 110 crude rubber to accomplish the ejection of compact process, the spiral shell area 21 makes the ejection of compact even with barrel 12 clearance is fixed, has improved the ejection of compact effect that 110 was glued.

Claims (4)

1. The utility model provides a wear-resisting seal structure for single screw goes out gluey pump, includes the motor, the speed reducer, the barrel, the rotation axis, the spiral shell area, its characterized in that: the rotating shaft is of an integrated structure, the upper part of the rotating shaft is a spiral shaft with a spiral belt, the lower part of the rotating shaft is a main shaft, the main shaft is in key connection with a hollow shaft, the hollow shaft is connected with a shaft sleeve, the shaft sleeve is sleeved on the rotating shaft, and the shaft sleeve is in clearance fit with the rotating shaft.

2. The wear-resistant sealing structure for the single-screw glue discharging pump according to claim 1, characterized in that: the top end of the inner ring of the shaft sleeve and the bottom end of the inner ring are respectively provided with a processing groove, the bottom of the shaft sleeve is provided with a stabilizing hole, and a set screw connected with the hollow shaft is arranged in the stabilizing hole.

3. The wear-resistant sealing structure for the single-screw glue discharging pump according to claim 1, characterized in that: the main shaft and the hollow shaft are connected through a double bond.

4. The wear-resistant sealing structure for the single-screw glue discharging pump according to claim 2, characterized in that: and a sealing ring is arranged in the processing groove.

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