CN219432373U

CN219432373U - Wear-resistant ball screw

Info

Publication number: CN219432373U
Application number: CN202320726105.XU
Authority: CN
Inventors: 肖龙驹; 梁卫宾; 苏志策; 滕农艳
Original assignee: Shenzhen Sanya Technology Co ltd
Current assignee: Shenzhen Sanya Technology Co ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-07-28
Anticipated expiration: 2033-03-24

Abstract

The utility model relates to the technical field of ball screws, and provides a wear-resistant ball screw which comprises a screw main body, a sleeve and an oil duct, wherein the sleeve is arranged on the outer side of the screw main body, wear-resistant structures are arranged on the surfaces of the sleeve and the screw main body, the ball main body is uniformly arranged in the sleeve, positioning grooves are formed in two sides of the sleeve, sealing structures are arranged in the positioning grooves, the oil duct is arranged at one end of the sleeve, an oil filling hole is arranged at one end of the oil duct, a sealing plug is arranged at one end of the oil filling hole, and a filtering structure is arranged in the oil filling hole. According to the utility model, the filter screen arranged in the oil filling hole can play a certain role in filtering lubricating oil, so that the problem of blockage caused by dust entering the oil duct is avoided, the filter screen is clamped by a limiting block by using tools such as tweezers to rotate, the filter screen is withdrawn from the fixed screw, the fixed limit on the filter screen is released, and the purpose of replacing the filter screen is realized.

Description

Wear-resistant ball screw

Technical Field

The utility model relates to the technical field of ball screws, in particular to a wear-resistant ball screw.

Background

With the continuous improvement of the economic level, the ball screw is widely used, and the main function of the ball screw is to convert rotary motion into linear motion or torque into axial repeated acting force, and meanwhile, the ball screw has the characteristics of high precision, reversibility and high efficiency, and is a transmission element most commonly used on tool machinery and precision machinery.

The utility model discloses a ball screw in the patent specification of publication number CN213981874U, including the axle sleeve, set up the lead screw in the axle sleeve, be provided with the ball in the screw groove in axle sleeve and the lead screw, the circular groove has been seted up to the upper end inboard surface of axle sleeve, sliding connection has concave ring cover in the circular groove, the circular groove department inboard surface of axle sleeve has the screw through threaded connection, the screw upper end sets up the annular, concave ring cover circular opening department card is in the annular of screw, the spring has been placed in the circular groove, the spring extrudees concave ring cover, the water conservancy diversion hole is seted up to the circular groove department inboard surface of axle sleeve, is convenient for add lubricating oil, is convenient for operate and use to in the terminal surface sets up the protruding bulge loop rubber cover of taking the screw to laminate sealedly, is convenient for seal, this ball screw has the disadvantage when using:

1. when the ball screw is used for adding lubricating oil, the lubricating oil is not convenient to filter, dust easily enters the oil duct along with the lubricating oil, so that the oil duct is blocked, and the lubricating effect is further affected;

2. when the ball screw is used, the problem of serious abrasion occurs due to poor abrasion resistance, so that an abrasion-resistant ball screw is required to be researched to solve the problem.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to provide a wear-resistant ball screw which is used for solving the defect that the conventional ball screw is inconvenient to filter lubricating oil.

(II) summary of the utility model

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a wear-resistant ball screw, includes lead screw main part, sleeve and oil duct, the sleeve is installed in the outside of lead screw main part, sleeve and lead screw main part's surface is provided with wear-resisting structure, telescopic inside evenly installs ball main part, the inside both sides of sleeve all are provided with the constant head tank, the inside of constant head tank all is provided with seal structure, the oil duct is installed to the inside one end of sleeve, the oil filler point is installed to the one end of oil duct, and the sealing plug is installed to the one end of oil filler point, the inside of oil filler point is provided with filter structure, filter structure is including bracing piece, fixing screw, filter screen, stopper and preformed hole, the inside at the oil filler point is installed to the bracing piece, fixing screw is installed on the top of bracing piece, and the filter screen is installed in the outside of fixing screw, the preformed hole is installed to the internally mounted at filter screen top, the stopper is all installed on the both sides. The filter structure who sets up is convenient for filter lubricating oil, improves oiling effect.

When the screw rod type anti-friction device is used, the filter screen can play a certain filtering effect on lubricating oil, the problem that dust enters an oil duct to cause blockage of the lubricating oil is avoided, the rotary filter screen of the limiting block is clamped by tools such as tweezers, the filter screen is withdrawn from the fixing screw rod, the fixing limit on the filter screen is released, the filter screen can be replaced, the sealing ring can play a certain sealing effect, the dust is prevented from entering the sleeve, the limiting screw rod is rotated, the limiting screw rod is withdrawn from the inside of the thread groove, the fixing limit on the sealing ring is released, the sealing ring can be replaced, the wear resistance of the sleeve and the screw rod main body can be enhanced by the wear-resisting layer, and the high temperature resistance of the sleeve and the screw rod main body can be enhanced by the high temperature-resisting layer.

Preferably, the sealing structure comprises a thread groove, a limit screw and a sealing ring, wherein the sealing ring is arranged in the positioning groove, the limit screw is arranged at two ends of the sealing ring, and the thread groove is arranged at the outer side of the limit screw. The sealing structure can play a certain sealing role, and the sealing performance between the sleeve and the screw rod main body is improved.

Preferably, the limit screws are symmetrically arranged, and the limit screws are distributed in a central symmetry manner through the sealing rings. The limit screw rods symmetrically arranged can improve the installation stability of the sealing ring.

Preferably, threads are formed on the inner wall of the preformed hole, and the preformed hole is meshed with the fixing screw rod through the threads. The fixed screw rod and the reserved hole are arranged to facilitate the disassembly and assembly of the filter screen.

Preferably, the filter screen is circular in design, and the diameter of the filter screen is smaller than the diameter of the oil filling hole. The filter screen can play a certain role in filtering.

Preferably, the wear-resisting structure comprises a protective coating, a high temperature resistant layer and a wear-resisting layer, wherein the protective coating is arranged on the surfaces of the sleeve and the screw rod main body, the high temperature resistant layer is arranged on the surface of the protective coating, and the wear-resisting layer is arranged on the surface of the high temperature resistant layer. The wear-resisting structure can enhance the wear resistance and high temperature resistance of the sleeve and the screw rod main body, and prolong the service life of the sleeve and the screw rod main body.

Preferably, the wear-resistant layer is a ceramic nano wear-resistant coating, and the high temperature resistant layer is a nano high temperature resistant coating. The wear-resisting layer and the high temperature-resisting layer can protect the sleeve and the screw rod main body.

(III) beneficial effects

The wear-resistant ball screw provided by the utility model has the advantages that:

(1) Through the filter screen arranged in the oil filling hole, the filter screen can play a certain role in filtering lubricating oil, the problem that dust enters the oil duct to cause blockage is avoided, a limiting block is clamped by tools such as tweezers to rotate the filter screen, the filter screen is withdrawn from the fixed screw, the fixed limit on the filter screen is removed, and the purpose of replacing the filter screen is achieved;

(2) The sealing ring arranged in the positioning groove can play a certain sealing role, dust is prevented from entering the sleeve, the limiting screw is rotated, the limiting screw is withdrawn from the inside of the thread groove, the fixed limit of the sealing ring is relieved, and the purpose of replacing the sealing ring is achieved;

(3) Through the wearing layer that sets up at sleeve and lead screw main part surface, under the guard action of wearing layer, can strengthen sleeve and lead screw main part wear resistance, under the guard action of high temperature resistant layer, can strengthen sleeve and lead screw main part's high temperature resistance.

Drawings

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

FIG. 1 is a schematic cross-sectional elevation view of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 3 is a schematic view of a part of a seal structure according to the present utility model;

FIG. 4 is a schematic diagram of a front view of a filter structure according to the present utility model;

fig. 5 is a schematic three-dimensional structure of the wear-resistant structure of the present utility model.

Reference numerals in the drawings illustrate: 1. a screw main body; 2. a sealing structure; 201. a thread groove; 202. a limit screw; 203. a seal ring; 3. a positioning groove; 4. a sleeve; 5. a ball body; 6. a filtering structure; 601. a support rod; 602. a fixed screw; 603. a filter screen; 604. a limiting block; 605. a preformed hole; 7. a sealing plug; 8. an oil filling hole; 9. an oil passage; 10. a wear resistant structure; 1001. a protective coating; 1002. a high temperature resistant layer; 1003. and a wear-resistant layer.

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 one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

Referring to fig. 1-5, the wear-resistant ball screw provided by the utility model comprises a screw main body 1, a sleeve 4 and an oil duct 9, wherein the sleeve 4 is installed on the outer side of the screw main body 1, the ball main body 5 is uniformly installed in the sleeve 4, positioning grooves 3 are formed in two sides of the inner part of the sleeve 4, the oil duct 9 is installed at one end of the sleeve 4, an oil injection hole 8 is installed at one end of the oil duct 9, a sealing plug 7 is installed at one end of the oil injection hole 8, a filtering structure 6 is arranged in the oil injection hole 8, the filtering structure 6 comprises a supporting rod 601, a fixing screw 602, a filtering screen 603, a limiting block 604 and a reserved hole 605, the filtering screen 603 is installed in the inner side of the filtering screen 603, the limiting blocks 604 are installed on two sides of the top end of the filtering screen 603, threads are formed in the inner wall of the reserved hole 605, and the reserved hole 605 is meshed with the fixing screw 602 through threads.

The filter screen 603 is circular in design, and the diameter of the filter screen 603 is smaller than the diameter of the oil filling hole 8.

In this embodiment, through the oil hole 8, lubricating oil can be added into the sleeve 4, under the filtering action of the filter screen 603, the dust can be prevented from entering the oil duct 9 along with the lubricating oil to cause blockage, when the filter screen 603 needs to be replaced, the filter screen 603 is clamped by a tool such as forceps to rotate the filter screen 603, the filter screen 603 is withdrawn from the fixing screw 602, the fixing restriction on the filter screen 603 is released, and the filter screen 603 is taken out from the interior of the oil hole 8 to be replaced.

Example two

The embodiment further includes: the inside of constant head tank 3 all is provided with seal structure 2, and seal structure 2 is including thread groove 201, spacing screw 202 and sealing washer 203, and sealing washer 203 all installs in the inside of constant head tank 3, and spacing screw 202 is all installed at the both ends of sealing washer 203, and the outside of spacing screw 202 all is provided with thread groove 201, and spacing screw 202 is the symmetry setting, and spacing screw 202 is central symmetry through sealing washer 203 and distributes.

The surface of sleeve 4 and lead screw main part 1 is provided with wear-resisting structure 10, and wear-resisting structure 10 is including protective coating 1001, high temperature resistant layer 1002 and wearing layer 1003, and protective coating 1001 installs on the surface of sleeve 4 and lead screw main part 1, and protective coating 1001's surface mounting has high temperature resistant layer 1002, and high temperature resistant layer 1002's surface mounting has wearing layer 1003, and wearing layer 1003 is ceramic nanometer wearing coating, and high temperature resistant layer 1002 is nanometer high temperature resistant coating.

In this embodiment, through the sealing effect of the sealing ring 203, dust can be prevented from entering the sleeve 4 to a certain extent, when the sealing ring 203 needs to be replaced, the limiting screw 202 is rotated, the limiting screw 202 is withdrawn from the inside of the thread groove 201, the fixing restriction on the sealing ring 203 is released, the sealing ring 203 can be removed for replacement, and under the protection effect of the wear-resisting layer 1003 and the high-temperature-resisting layer 1002, the wear-resisting performance and the high-temperature-resisting performance of the sleeve 4 and the screw rod main body 1 can be enhanced, and the service life of the screw rod main body is prolonged.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; 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 technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. Wear-resistant ball screw, including lead screw main part (1), sleeve (4) and oil duct (9), its characterized in that: a sleeve (4) is arranged on the outer side of the screw rod main body (1);

the surface of sleeve (4) and lead screw main part (1) is provided with wear-resisting structure (10), ball main part (5) are evenly installed to the inside of sleeve (4), both sides of sleeve (4) inside all are provided with constant head tank (3), the inside of constant head tank (3) all is provided with seal structure (2), oil duct (9) are installed to the inside one end of sleeve (4);

oil filler point (8) are installed to one end of oil duct (9), and sealing plug (7) are installed to one end of oil filler point (8), the inside of oil filler point (8) is provided with filtration (6), filtration (6) are including bracing piece (601), fixing screw (602), filter screen (603), stopper (604) and preformed hole (605), inside at oil filler point (8) is installed to bracing piece (601), fixing screw (602) are installed on the top of bracing piece (601), and filter screen (603) are installed in the outside of fixing screw (602), internally mounted of filter screen (603) has preformed hole (605), stopper (604) are all installed to the both sides at filter screen (603) top.

2. The wear resistant ball screw as recited in claim 1, wherein: seal structure (2) are including screw thread groove (201), spacing screw (202) and sealing washer (203), inside constant head tank (3) is all installed to sealing washer (203), spacing screw (202) are all installed at the both ends of sealing washer (203), and the outside of spacing screw (202) all is provided with screw thread groove (201).

3. The wear resistant ball screw as recited in claim 2, wherein: the limiting screws (202) are symmetrically arranged, and the limiting screws (202) are distributed in a central symmetry mode through sealing rings (203).

4. The wear resistant ball screw as recited in claim 1, wherein: the inner wall of the preformed hole (605) is provided with threads, and the preformed hole (605) is meshed with the fixing screw (602) through the threads.

5. The wear resistant ball screw as recited in claim 1, wherein: the filter screen (603) is of a circular design, and the diameter of the filter screen (603) is smaller than that of the oil filling hole (8).

6. The wear resistant ball screw as recited in claim 1, wherein: the wear-resisting structure (10) comprises a protective coating (1001), a high-temperature-resistant layer (1002) and a wear-resistant layer (1003), wherein the protective coating (1001) is arranged on the surfaces of the sleeve (4) and the screw rod main body (1), the high-temperature-resistant layer (1002) is arranged on the surface of the protective coating (1001), and the wear-resistant layer (1003) is arranged on the surface of the high-temperature-resistant layer (1002).

7. The wear resistant ball screw as recited in claim 6, wherein: the wear-resistant layer (1003) is a ceramic nano wear-resistant coating, and the high-temperature resistant layer (1002) is a nano high-temperature resistant coating.