Dustproof ball screw

Abstract

The utility model discloses a dustproof ball screw which comprises a screw body, a nut is connected to the outer side of the screw body, a steel ball is arranged between the nut and the screw body, dustproof seats are installed at the left end and the right end of the nut, and sealing strips are connected to the inner walls of the dustproof seats. And an oil storage tank is installed above the nut, the upper end of the oil storage tank communicates with an oil inlet, the upper end of the oil inlet is in threaded connection with a sealing cover, and a cotton strip is arranged in the oil storage tank. According to the dustproof ball screw, lubricating oil in the oil storage tank is conveyed through the cotton slivers, so that the rolling steel balls make contact with the lubricating oil, lubrication of the steel balls and the screw body is achieved, smooth movement of the steel balls and the screw body is kept, the friction force of the steel balls and the screw body is reduced, and the anti-rust and high-temperature-resistant performance of the rolling screw is achieved through the first anti-rust layer and the second anti-rust layer; and the first corrosion-resistant layer and the second corrosion-resistant layer are utilized to realize wear resistance and corrosion resistance of the rolling screw rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball screw technical field, concretely is dustproof ball screw. BACKGROUND

[0002] Ball screw is an important mechanical transmission element, with its high efficiency, accurate and stable characteristics in multiple fields play a key role, it is mainly used to convert rotary motion into linear motion, is widely used in machine tool manufacturing, aerospace, automobile manufacturing, electronic equipment manufacturing and multiple industries.

[0003] At present, ball screw utilizes steel ball to reduce the friction between nut and screw rod, but the lubrication between screw rod and steel ball is reduced after long-term use of ball screw, which increases the friction between screw rod and steel ball, causes wear of ball screw, and the rust prevention and corrosion resistance of ball screw are low, the surface rust, affect the smooth use of ball screw, therefore we put forward dustproof ball screw to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model discloses a dustproof ball screw, to solve the above background technical problems that the lubrication between screw rod and steel ball is reduced after long-term use of ball screw in the market, which increases the friction between screw rod and steel ball, causes wear of ball screw, and the rust prevention and corrosion resistance of ball screw are low, the surface rust, affect the smooth use of ball screw.

[0005] To realize above-mentioned purpose, the utility model provides the following technical scheme: dustproof ball screw, including screw rod body, the outside connection of screw rod body has nut, is provided with steel ball between nut and screw rod body, and the left and right ends of nut are all installed with dustproof seat, and the inner wall of dustproof seat is connected with sealing strip;

[0006] The upper portion of nut is installed with oil storage tank, the upper end of oil storage tank is connected with oil inlet, and the upper end of oil inlet is connected with sealing cover, and the inside of oil storage tank is provided with cotton.

[0007] Preferably, the screw rod body includes a first rust-proof layer, a second rust-proof layer, a first corrosion-resistant layer, and a second corrosion-resistant layer, the outer side of the first rust-proof layer is coated with the second rust-proof layer, the outer side of the second rust-proof layer is coated with the first corrosion-resistant layer, and the outer side of the first corrosion-resistant layer is coated with the second corrosion-resistant layer.

[0008] Preferably, the first rust-proof layer, the second rust-proof layer, the first corrosion-resistant layer, and the second corrosion-resistant layer are respectively inorganic zinc silicate coating, Dacromet coating, glass steel coating, and nickel plating layer.

[0009] Preferably, the sealing strip is matched with the screw thread raceway of the screw rod body, and the sealing strip is made of rubber.

[0010] Preferably, the steel ball is in contact with the upper end of the cotton strip, and the upper end of the cotton strip penetrates the oil storage tank and the nut in sequence.

[0011] Preferably, the cotton strips are distributed in the oil storage tank at equal intervals, and the lower end of the cotton strip is in contact with the bottom of the oil storage tank.

[0012] Compared with the prior art, the dustproof ball screw has the beneficial effects that:

[0013] (1) The dustproof ball screw utilizes the cotton strip to transport the lubricating oil in the oil storage tank, so that the rolling steel ball is in contact with the lubricating oil, lubrication of the steel ball and the screw rod body is realized, smooth movement is maintained, and the friction is reduced.

[0014] (2) The dustproof ball screw utilizes the first rust-proof layer and the second rust-proof layer to realize rust-proof and high-temperature resistance of the rolling screw rod, and utilizes the first corrosion-resistant layer and the second corrosion-resistant layer to realize wear resistance and corrosion resistance of the rolling screw rod.

[0015] (3) The dustproof ball screw utilizes the sealing strip matched with the screw thread raceway of the screw rod body to improve the sealing property, avoid dust from entering the movement area of the steel ball and the screw rod body, realize dust prevention, and the sealing strip can clean the impurities in the screw thread raceway, further reducing the friction between the steel ball and the screw rod body. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the sectional structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the sectional structure of the utility model; Figure 2

[0019] It is a schematic diagram of the sectional structure of the utility model; Figure 4

[0020] It is a schematic diagram of the sectional structure of the utility model; Figure 5 In the drawing: 1, screw rod body; 101, first rust-proof layer; 102, second rust-proof layer; 103, first corrosion-resistant layer; 104, second corrosion-resistant layer; 2, nut; 3, dustproof seat; 4, sealing strip; 5, steel ball; 6, oil storage tank; 7, oil inlet; 8, sealing cover; 9, cotton strip.

[0021] DETAILED DESCRIPTION

[0022] ​Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, apparently, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.

[0023] Please refer to Figures 1-5 The utility model provides the following technical scheme: dustproof ball screw, including screw rod body 1, the outside of screw rod body 1 is connected with nut 2, be provided with steel ball 5 between nut 2 and screw rod body 1, the left and right ends of nut 2 are all installed with dustproof seat 3, be connected with sealing strip 4 on the inner wall of dustproof seat 3;

[0024] Further, the sealing strip 4 is adapted to the thread raceway of the screw rod body 1, the sealing strip 4 is made of rubber material, which can seal the working area between the steel ball 5 and the screw rod body 1, achieve the dustproof effect, and the sealing strip 4 can move on the thread raceway to clean the impurities inside it.

[0025] The upper portion of the nut 2 is provided with an oil storage tank 6, the upper end of the oil storage tank 6 is communicated with an oil inlet 7, the upper end of the oil inlet 7 is threadedly connected with a sealing cover 8, and the inside of the oil storage tank 6 is provided with a cotton plug 9.

[0026] Further, the upper end of the steel ball 5 is in contact with the cotton plug 9, the upper end of the cotton plug 9 sequentially penetrates the oil storage tank 6 and the nut 2, and the cotton plug 9 can deliver lubricating oil to the surface of the steel ball 5 to lubricate the steel ball 5.

[0027] Further, the cotton plug 9 is distributed at equal intervals in the oil storage tank 6, the lower end of the cotton plug 9 is in contact with the bottom of the oil storage tank 6, so that the cotton plug 9 can smoothly deliver the lubricating oil in the oil storage tank 6.

[0028] Further, the screw rod body 1 comprises a first rust-proof layer 101, a second rust-proof layer 102, a first corrosion-resistant layer 103, and a second corrosion-resistant layer 104, the outer side of the first rust-proof layer 101 is coated with the second rust-proof layer 102, the outer side of the second rust-proof layer 102 is coated with the first corrosion-resistant layer 103, and the outer side of the first corrosion-resistant layer 103 is coated with the second corrosion-resistant layer 104.

[0029] Further, the first rust-proof layer 101, the second rust-proof layer 102, the first corrosion-resistant layer 103, and the second corrosion-resistant layer 104 are respectively inorganic zinc silicate coating, Dacromet coating, glass steel coating, and nickel plating layer, which can improve the rust-proof and corrosion-resistant performance of the ball screw.

[0030] Specifically, in use, the sealing cover 8 connected to the oil inlet 7 is unscrewed, and the lubricating oil is added into the oil storage tank 6 through the oil inlet 7, then the sealing cover 8 is screwed on the oil inlet 7 for sealing, the rotation is converted into linear motion through the rolling movement of the steel ball 5 in the threaded raceway, the movement of the nut 2 on the screw body 1 is realized, and the cotton strip 9 in the oil storage tank 6 delivers the lubricating oil into the rolling channel of the steel ball 5, the lubricating oil contacts the steel ball 5, the lubrication of the steel ball 5 and the screw body 1 is realized through the rolling of the steel ball 5, the smooth movement is maintained, the friction is reduced, the dustproof seat 3 is installed at the left and right ends of the nut 2, the sealing strip 4 matched with the threaded raceway of the screw body 1 is arranged between the dustproof seat 3 and the screw body 1, the sealing property is improved, the dust is prevented from entering the movement area of the steel ball 5 and the screw body 1, the dust prevention is realized, and the sealing strip 4 can clean the impurities in the threaded raceway.

[0031] The screw body 1 is sequentially provided with a first rust-proof layer 101, a second rust-proof layer 102, a first corrosion-resistant layer 103 and a second corrosion-resistant layer 104 from inside to outside, the first rust-proof layer 101 is an inorganic zinc silicate coating layer, the second rust-proof layer 102 is a Dacromet coating layer, the two coating layers are combined to realize the rust-proof and high-temperature resistance of the rolling screw, the first corrosion-resistant layer 103 is a glass steel coating layer, and the second corrosion-resistant layer 104 is a nickel plating layer, so that the wear resistance and corrosion resistance of the rolling screw are realized, and the contents not described in detail in the specification belong to the prior art known by the person skilled in the art.

[0032] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A dust-proof ball screw comprising a screw body (1), characterized in that: The outer side of the screw rod body (1) is connected with a nut (2), a steel ball (5) is arranged between the nut (2) and the screw rod body (1), the left and right ends of the nut (2) are both provided with a dustproof seat (3), and the inner wall of the dustproof seat (3) is connected with a sealing strip (4); An oil storage tank (6) is mounted above the nut (2), an oil inlet (7) is communicated with the upper end of the oil storage tank (6), a sealing cover (8) is threadedly connected with the upper end of the oil inlet (7), and a cotton strip (9) is arranged in the oil storage tank (6).

2. The dust-proof ball screw according to claim 1, wherein: The screw rod body (1) comprises a first rust-proof layer (101), a second rust-proof layer (102), a first corrosion-resistant layer (103) and a second corrosion-resistant layer (104), the outer side of the first rust-proof layer (101) is coated with the second rust-proof layer (102), the outer side of the second rust-proof layer (102) is coated with the first corrosion-resistant layer (103), and the outer side of the first corrosion-resistant layer (103) is coated with the second corrosion-resistant layer (104).

3. The dust-proof ball screw according to claim 2, wherein: The first rust-proof layer (101), the second rust-proof layer (102), the first corrosion-resistant layer (103) and the second corrosion-resistant layer (104) are respectively inorganic zinc silicate coating, Dacromet coating, glass steel coating and nickel plating.

4. The dust-proof ball screw according to claim 1, wherein: The sealing strip (4) is matched with the thread raceway of the screw rod body (1), and the sealing strip (4) is made of rubber.

5. The dust-proof ball screw according to claim 1, wherein: The steel ball (5) is in contact with the upper end of the cotton strip (9), and the upper end of the cotton strip (9) penetrates the oil storage tank (6) and the nut (2) in sequence.

6. The dust-proof ball screw according to claim 1, wherein: The cotton strips (9) are distributed in the oil storage tank (6) at equal intervals, and the lower end of the cotton strip (9) is in contact with the bottom of the oil storage tank (6).

Images