A main drive screw nut

Abstract

The utility model discloses a main drive screw nut, comprising a nut piece, a nut sleeve and a screw body, the nut sleeve is arranged at one end of the nut piece, the screw body is arranged inside the nut piece, one end of the nut piece is provided with a rectangular thread, the inner surface of the nut piece is provided with a moisture-proof layer, the interior of the nut piece is provided with a high temperature resistant layer, the interior of the nut piece is provided with a pressure-resistant layer, and the interior of the pressure-resistant layer is provided with a plurality of reinforcing ribs. By arranging the moisture-proof layer, the high temperature resistant layer, the flame retardant layer and the reinforcing ribs, the moisture-proof layer is made of moisture-proof paper-faced gypsum board, which increases the moisture-proof function and is suitable for environments with high humidity, the high temperature resistant layer is made of refractory brick material, which can react with free radicals generated by combustion, thereby inhibiting combustion and increasing the use range of the screw nut, the reinforcing ribs are made of aluminum alloy material, have a certain hardness, and are evenly distributed inside the pressure-resistant layer, thereby enhancing the anti-deformation performance of the screw nut.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing and automation, in particular to a main drive screw rod and nut. Background Art

[0002] The main drive screw nut is an important component in mechanical transmission and has a very wide range of applications. The working principle of the screw nut is relatively simple. When the screw is rotated, the nut will move along the axial direction of the screw. The important parameters of the screw nut transmission include transmission ratio, load bearing capacity and transmission accuracy. In order to achieve higher transmission accuracy, the surface hardness and smoothness of the screw nut are also paid attention to. The stability and accuracy of its performance have an important impact on the working efficiency and processing quality of mechanical equipment.

[0003] In automation equipment, the main drive screw nut is often used to drive various automatic feeding mechanisms. The main drive screw nut has high requirements for the use environment, especially it is sensitive to changes in temperature and humidity. In a high temperature and high humidity environment, the surface of the screw nut is prone to wear and rust, affecting the transmission accuracy and service life. In addition, the material set inside the nut is single, the resistance to external forces is poor, and it is easy to deform, which will cause the drive to fail. For this reason, a main drive screw nut is designed. Utility Model Content

[0004] The purpose of the utility model is to provide a main drive screw nut to solve the problem raised in the above background technology that the surface of the screw nut is prone to wear and rust in a high temperature and high humidity environment and the nut has poor resistance to external forces.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a main drive screw nut, comprising a nut piece, a nut sleeve and a screw rod body, the nut sleeve is arranged on one end of the nut piece, the screw rod body is arranged inside the nut piece, a rectangular thread is opened on one end of the nut piece, a moisture-proof layer is arranged on the inner surface of the nut piece, a high temperature resistant layer is arranged inside the nut piece, a pressure-resistant layer is arranged inside the nut piece, and a plurality of reinforcing ribs are arranged inside the pressure-resistant layer.

[0006] As a preferred technical solution of the utility model, the screw rod body moves inside the rectangular thread.

[0007] As a preferred technical solution of the utility model, a flame retardant layer is provided inside the wire mother component, and one side of the pressure-resistant layer and one side of the flame retardant layer are bonded to each other.

[0008] As a preferred technical solution of the utility model, the thickness of the pressure-resistant layer is greater than the thickness of the flame-retardant layer.

[0009] As a preferred technical solution of the utility model, a plurality of the reinforcing ribs are arranged at equal intervals, and a wear-resistant layer is provided inside the nutshell.

[0010] As a preferred technical solution of the utility model, the shapes of the plurality of reinforcing ribs are all arc-shaped.

[0011] As a preferred technical solution of the utility model, one side of the high temperature resistant layer and one side of the moisture-proof layer are bonded to each other, and the thickness of the high temperature resistant layer is equal to the thickness of the moisture-proof layer.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model discloses a main drive screw nut, which is provided with a moisture-proof layer, a high temperature resistant layer, a flame retardant layer and reinforcing ribs. The moisture-proof layer is made of a moisture-proof paper-faced gypsum board, which increases the moisture-proof function and is suitable for environments with high humidity. The high temperature resistant layer is made of a refractory brick material and can withstand extremely high temperatures and is suitable for environments with high temperatures. The flame retardant layer is made of a magnesium hydroxide material and can react with free radicals produced by combustion, thereby inhibiting combustion and increasing the use range of the screw nut. The reinforcing ribs are made of an aluminum alloy material and have a certain hardness. The reinforcing ribs are evenly spaced and distributed inside the pressure-resistant layer, thereby enhancing the anti-deformation performance of the screw nut.

[0014] The utility model discloses a main drive screw nut, which is provided with a rectangular thread, a pressure-resistant layer and a wear-resistant layer. The thread arranged on the outer surface of the screw body can be connected with the rectangular thread. The pressure-resistant layer is filled with polyurethane foam and has good pressure resistance. The anti-pressure layer is used together with a plurality of reinforcing ribs to enhance the strength of the screw nut against external forces. The wear-resistant layer is made of polytetrafluoroethylene and has excellent wear resistance and chemical stability, thereby further extending the service life of the screw nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view structural schematic diagram of the utility model;

[0016] Figure 2 It is a partial side cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 For the utility model Figure 2 The enlarged view of point A in the middle;

[0018] Figure 4 It is a partial exploded view of the utility model.

[0019] In the figure: 1. nut piece; 2. nut sleeve; 3. screw rod body; 4. rectangular thread; 5. moisture-proof layer; 501. high temperature resistant layer; 502. flame retardant layer; 503. reinforcement rib; 504. compression-resistant layer; 6. wear-resistant layer. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a technical solution for a main drive screw nut: Embodiment one:

[0022] like Figure 1-3 As shown, a main drive screw nut comprises a nut piece 1, a nut sleeve 2 and a screw body 3, the nut sleeve 2 is sleeved on one end of the nut piece 1, the screw body 3 is arranged inside the nut piece 1, a rectangular thread 4 is opened at one end of the nut piece 1, a moisture-proof layer 5 is arranged on the inner surface of the nut piece 1, a high temperature resistant layer 501 is arranged inside the nut piece 1, a pressure-resistant layer 504 is arranged inside the nut piece 1, a plurality of reinforcing ribs 503 are arranged inside the pressure-resistant layer 504, the flame retardant layer 502 is made of magnesium hydroxide material, can react with free radicals generated by combustion, thereby inhibiting combustion, and increasing the use range of the screw nut, the reinforcing ribs 503 are made of aluminum alloy material, have a certain hardness, and are evenly distributed inside the pressure-resistant layer 504, thereby enhancing the anti-deformation performance of the screw nut. Embodiment 2:

[0023] Based on the first embodiment, Figure 1 and Figure 4 As shown, several reinforcing ribs 503 are arranged at equal intervals, a wear-resistant layer 6 is arranged inside the nut member 1, one side of the high-temperature resistant layer 501 is in contact with one side of the moisture-proof layer 5, the thickness of the high-temperature resistant layer 501 is equal to the thickness of the moisture-proof layer 5, and the shapes of the several reinforcing ribs 503 are all arc-shaped. The utility model provides a main drive screw nut, which is provided with a rectangular thread 4, a pressure-resistant layer 504 and a wear-resistant layer 6. The thread arranged on the outer surface of the screw body 3 can be threadedly connected with the rectangular thread 4. The pressure-resistant layer 504 is filled with polyurethane foam and has good pressure resistance. In addition, the use of several reinforcing ribs 503 enhances the external force resistance of the nut member 1.

[0024] Working principle: The main drive screw nut is an important component in mechanical transmission and has a very wide range of applications. The working principle of the screw nut is relatively simple. When the screw is rotated, the nut will move along the axial direction of the screw. The important parameters of the screw nut transmission include transmission ratio, load bearing capacity and transmission accuracy. In order to achieve higher transmission accuracy, the surface hardness and finish of the screw nut have also been paid attention to. The stability and accuracy of its performance have an important impact on the working efficiency and processing quality of mechanical equipment. In automation equipment, the main drive screw nut is often used to drive various automatic feeding mechanisms. The main drive screw nut has high requirements for the use environment, especially it is sensitive to changes in temperature and humidity. In a high temperature and high humidity environment, the surface of the screw nut is prone to wear and rust, affecting the transmission accuracy and service life. In addition, the material set inside the nut is single, the resistance to external forces is poor, and it is easy to deform, which will lead to the inability to drive. At this time, the moisture-proof layer 5 is made of moisture-proof paper-faced gypsum board, which increases the moisture-proof function and is suitable for environments with high humidity. The high-temperature resistant layer 501 is made of refractory brick material and can withstand extremely high temperatures and is suitable for environments with high temperatures. The flame retardant layer 502 is made of magnesium hydroxide material and can react with free radicals produced by combustion, thereby inhibiting combustion and increasing the scope of use of the screw rod and nut. The reinforcing ribs 503 are made of aluminum alloy material and have a certain hardness. They are evenly distributed inside the pressure-resistant layer 504, which enhances the deformation resistance of the screw rod and nut. The threads arranged on the outer surface of the screw body 3 can be threadedly connected with the rectangular threads 4. The pressure-resistant layer 504 is filled with polyurethane foam and has good pressure resistance. It is used in conjunction with several reinforcing ribs 503 to enhance the external force resistance of the nut member 1. The wear-resistant layer 6 is made of polytetrafluoroethylene and has excellent wear resistance and chemical stability, further extending the service life of the nut member 1.

[0025] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A main drive screw nut, comprising a nut piece (1), a nut sleeve (2) and a screw rod body (3), wherein the nut sleeve (2) is sleeved on one end of the nut piece (1), and the screw rod body (3) is arranged inside the nut piece (1), characterized in that: A rectangular thread (4) is provided at one end of the nut member (1), a moisture-proof layer (5) is provided on the inner surface of the nut member (1), a high-temperature resistant layer (501) is provided inside the nut member (1), a pressure-resistant layer (504) is provided inside the nut member (1), and a plurality of reinforcing ribs (503) are provided inside the pressure-resistant layer (504).

2. A main drive screw nut according to claim 1, characterized in that: The screw rod body (3) moves inside the rectangular thread (4).

3. A main drive screw nut according to claim 1, characterized in that: A flame retardant layer (502) is provided inside the wire mother component (1), and one side of the pressure-resistant layer (504) and one side of the flame retardant layer (502) are bonded to each other.

4. A main drive screw nut according to claim 3, characterized in that: The thickness of the pressure-resistant layer (504) is greater than the thickness of the flame-retardant layer (502).

5. The main drive screw nut according to claim 1, characterized in that: The plurality of reinforcing ribs (503) are arranged at equal intervals, and a wear-resistant layer (6) is provided inside the nutshell (1).

6. A main drive screw nut according to claim 5, characterized in that: The shapes of the plurality of reinforcing ribs (503) are all arc-shaped.

7. The main drive screw nut according to claim 1, characterized in that: One side of the high temperature resistant layer (501) is bonded to one side of the moisture proof layer (5), and the thickness of the high temperature resistant layer (501) is equal to the thickness of the moisture proof layer (5).

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