CN219388391U - Shear screw for rubber aftertreatment device - Google Patents

Abstract

The utility model discloses a shearing screw applied to rubber aftertreatment equipment, which comprises a screw cap and a screw rod, wherein one end of the screw rod is a connecting end connected with the screw cap, the other end of the screw rod is a shearing end used for shearing materials, the screw cap comprises a cap body and a mounting part, the mounting part is annularly arranged on the outer side of the cap body, a through hole is formed in the mounting part, and a bolt or a screw penetrates through the through hole to fix the shearing screw. According to the utility model, the shearing screw is installed by adopting the through holes, so that the problem that metal adhesion abrasion is generated between the screw rod and the cylinder body when the shearing screw adopts a threaded installation mode, thereby damaging the shearing screw and the cylinder body is avoided, the service life of the shearing screw is prolonged, and the production cost is reduced.

Description

Shear screw for rubber aftertreatment device

Technical Field

The utility model relates to the technical field of rubber aftertreatment, in particular to a shear screw applied to rubber aftertreatment equipment.

Background

The device is applied to the post-treatment drying stage of rubber, and a shearing screw penetrating through the barrel is arranged on the barrel of the dryer to shear materials. As shown in fig. 1, which is a schematic structural diagram of an existing shear screw, the mounting mode adopted is a threaded mounting mode, the screw rod is directly contacted with the mounted cylinder, and the shear screw and the mounted cylinder are made of stainless steel materials, so that metal adhesion abrasion phenomenon between the same materials can be generated at the position of the cylinder contacted with the shear screw in the process of rotating and mounting the screw, the shear screw and the mounted cylinder are damaged easily, and the cost for replacing the shear screw is increased.

Disclosure of Invention

The utility model provides a shear screw, which aims to solve the problem that when the shear screw is installed in a threaded installation mode, metal adhesion abrasion is generated between a screw rod and a cylinder body installed by the screw rod, so that the shear screw and the cylinder body are damaged.

In order to achieve the above object, the technical scheme of the present utility model is as follows:

the utility model provides a shear screw that rubber aftertreatment equipment used, includes screw cap and screw pole, the one end of screw pole is the link of being connected with the screw cap, and the other end is the shearing end that is used for shearing the material, its characterized in that: the screw cap comprises a cap body and a mounting part, wherein the mounting part is annularly arranged on the outer side of the cap body, a through hole is formed in the mounting part, and a bolt or a screw penetrates through the through hole to fix the shearing screw.

Further, the through holes are uniformly circumferentially arranged on the mounting part, and the distances between the through holes and the axis of the screw rod are equal.

Further, the mounting part is also provided with a top thread dismounting hole.

Further, a first sealing ring groove is formed in the lower surface of the screw cap.

Further, a second seal ring groove is provided on the surface of the screw rod in the radial direction.

Further, the shearing end gradually decreases in diameter in a direction away from the nut.

Compared with the prior art, the utility model changes the installation mode of the shear screw, and the shear screw is installed by arranging the through hole on the screw cap, so that the problem that metal is damaged due to friction between the screw rod and the cylinder body when the screw cap is installed by threads is avoided, and the service life of the shear screw is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic view of a prior art shear screw configuration;

FIG. 2 is a schematic view of the structure of a shear screw according to the present utility model;

fig. 3 is a cross-sectional view of a screw cap in an embodiment of the present utility model.

In the figure: 1. a screw cap; 11. a cap body; 12. a mounting part; 121. a through hole; 122. disassembling the top thread hole; 2. a screw rod; 3. a first seal ring groove; 4. a second seal ring groove; 5. and shearing the end.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment provides a shear screw applied to rubber aftertreatment equipment, as shown in fig. 2-3, the shear screw comprises a screw cap 1 and a screw rod 2, one end of the screw rod 2 is a connecting end connected with the screw cap 1, the other end is a shearing end 5 for shearing materials, the screw cap 1 comprises a cap body 11 and a mounting part 12, the mounting part 12 is annularly arranged outside the cap body 11, a through hole 121 is formed in the mounting part 12, a bolt or a screw passes through the through hole 121 to fix the shear screw, specifically, the structure is adjusted so that the mounting mode of the shear screw is changed into through hole mounting, a threaded hole is formed in a barrel during mounting, the bolt or the screw passes through the through hole 121 of the shear screw, the shear screw is rotated to enter the barrel, the shear screw is fixed on the barrel, the screw rod 2 does not rotate any more, the screw rod 2 of the shear screw can not generate metal abrasion with the barrel in close contact, friction between the barrel vibration and the screw rod 2 is also reduced during machine work, the service life of the shear screw is prolonged, a hexagon head and an hexagon socket head are preferably selected, the shear screw is fastened, the screw is not easy to detach and the shear screw is difficult to detach in the routine repair process.

The mounting portion 12 is further provided with a disassembling top thread hole 122, as shown in fig. 3, two symmetrical disassembling top thread holes 122 are formed in the mounting portion 12, so that the shear screw is easy to disassemble from the cylinder body, specifically, the shear screw is not required to be disassembled for a long time after being mounted, when the shear screw is required to be disassembled, most screw caps 1 are corroded and are tightly connected with the cylinder body, the disassembly is difficult, inconvenience is brought to disassembling the shear screw, the disassembling top thread through holes 122 are formed, and therefore when the shear screw is disassembled, the top thread is screwed into the disassembling top thread holes 122, and the cylinder body generates a reaction force to separate the shear screw from the cylinder body, so that time and labor are saved.

As shown in fig. 2, a first sealing ring groove 3 is formed in the lower surface of the screw cap 1, an O-shaped sealing ring is placed in the groove, the sealing ring is made of rubber material and has good elasticity, when a shear screw is mounted on a cylinder body, the sealing ring can fill up a gap between the cylinder body and the screw cap 1, and when the cylinder body moves to generate axial force on the screw cap 1, the sealing ring can play a buffering protection role, so that the possibility of leakage is reduced;

the surface of the screw rod 2 is provided with a second sealing ring groove 4 along the radial direction, after an O-shaped sealing ring is put in, the sealing ring fills up a gap between the screw rod 2 and the cylinder body, and the cylinder body prevents materials from leaking out of the gap between the screw rod 2 and the cylinder body when moving; the two sealing rings are different in position and same in effect, leakage of materials is prevented, and a single sealing ring can also play a role in sealing, but when the borne external acting force is large, the double sealing structure plays a role at the same time, so that the sealing effect can be obviously enhanced, and the leakage risk is further reduced. The current shear screw has used the sealed mode of copper pad to seal, leads to sealing cost higher, and this embodiment uses rubber to replace the copper pad to seal, has reduced sealing cost.

The cutting end gradually decreases in diameter in a direction away from the nut 1. The shearing end 5 of the existing shearing screw is of a cylindrical structure, in this embodiment, the shearing end 5 is of a conical structure, specifically, when the device is operated, materials generate shearing force on the shearing end 5, the shape of the shearing end 5 is changed into a conical shape, the contact area with rubber is reduced, the shearing force born by the shearing screw in the radial direction is reduced, the shearing time of the shearing end 5 is prolonged, and the service life of the shearing screw is prolonged.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (6)

1. The utility model provides a shear screw that rubber aftertreatment equipment used, includes screw cap (1) and screw pole (2), the one end of screw pole (2) is the link of being connected with screw cap (1), and the other end is the shearing end (5) that are used for shearing the material, its characterized in that: the screw cap (1) comprises a cap body (11) and a mounting part (12), wherein the mounting part (12) is annularly arranged on the outer side of the cap body (11), a through hole (121) is formed in the mounting part (12), and a bolt or a screw penetrates through the through hole (121) to fix the shearing screw.

2. A shear screw for use with a rubber finishing apparatus as defined in claim 1, wherein: the through holes (121) are uniformly circumferentially arranged on the mounting part (12), and the distances between the through holes (121) and the axis of the screw rod (2) are equal.

3. A shear screw for use with a rubber finishing apparatus as defined in claim 1, wherein: the mounting part (12) is also provided with a disassembling top thread hole (122).

4. A shear screw for use with a rubber finishing apparatus as defined in claim 1, wherein: the lower surface of the screw cap (1) is provided with a first sealing ring groove (3).

5. A shear screw for use with a rubber finishing apparatus as defined in claim 4, wherein: a second sealing ring groove (4) is arranged on the surface of the screw rod (2) along the radial direction.

6. A shear screw for use with a rubber finishing apparatus as defined in claim 1, wherein: the diameter of the shearing end (5) gradually decreases along the direction away from the screw cap (1).