CN215109253U

CN215109253U - Isolator structure

Info

Publication number: CN215109253U
Application number: CN202120594639.2U
Authority: CN
Inventors: 张尚全; 郑艇; 黄清华; 吴显红
Original assignee: Chongqing Kuyize Machinery Manufacturing Co ltd
Current assignee: Chongqing Kuyize Machinery Manufacturing Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-12-10
Anticipated expiration: 2031-03-22

Abstract

The utility model relates to an isolator structure, which comprises a guide shaft, an one-way sleeve and a limit sleeve, wherein the limit sleeve is fixed at one end of the guide shaft and is in interference fit with the guide shaft; a body is arranged at one end of the guide shaft, a concave table is arranged on the body, and a large tooth is fixed on the concave table; the body is internally provided with an accommodating cavity, a spline inner core is arranged in the accommodating cavity, a tooth part of the spline inner core is exposed out of the body, a sealing plate is arranged on the right end face of the body, a protective shell is arranged on the outer side of the sealing plate, and the protective shell covers the periphery of the body; the protective outer cover comprises an inner layer and a PEEK film layer; slidable internal spline driving teeth are arranged between the spline inner core and the limiting sleeve; and a positioning ring block is arranged on the end face of the right side of the internal spline driving tooth. The utility model relates to a novelty improves ingeniously, has replaced the structure and the material of protection enclosing cover, and its intensity is superior to the aluminium matter lid of general producer, has improved its life, simultaneously, sets up heat dissipation punchhole on the big tooth, the design that bright among the prior art has.

Description

Isolator structure

Technical Field

The utility model relates to an isolator structure.

Background

The isolator mainly comprises a driving shaft lever, driving teeth, a sleeve and transmission teeth, wherein the driving teeth, the sleeve and the transmission teeth are arranged on the shaft lever; the outer cover on the body in the prior art is generally an aluminum cover which is convenient to process and is designed by some factories, but because the aluminum cover is easy to rust and damage, a company designs the invention as a technical improvement.

SUMMERY OF THE UTILITY MODEL

In order to solve the above prior art problem, the utility model provides an isolator structure can improve more than not enough.

The utility model relates to an isolator structure, which comprises a guide shaft, an one-way sleeve and a limit sleeve, wherein the limit sleeve is fixed at one end of the guide shaft and is in interference fit with the guide shaft; one end of the guide shaft is provided with a body, a concave table is arranged on the body, a large tooth is fixed on the concave table, and the large tooth is driven by a motor; the body is internally provided with an accommodating cavity, a spline inner core is arranged in the accommodating cavity, a tooth part of the spline inner core is exposed out of the body, a sealing plate is arranged on the right end face of the body, a protective shell is arranged on the outer side of the sealing plate, and the protective shell covers the periphery of the body; the spline inner core is positioned in the accommodating body to form a connecting part, a clutch groove is arranged between the connecting part and the inner wall of the body, the clutch groove is annularly arranged and is arranged in the clutch groove, and a plurality of rollers and a plurality of springs used for providing reset elasticity for the rollers are arranged in the clutch groove; the protective outer cover comprises an inner layer and a PEEK film layer which are taken as improvement points, wherein the inner layer is made of aluminum alloy plates, such as Al-Si alloy series, the strength of the protective outer cover is due to an aluminum cover, and meanwhile, the PEEK film layer has wear-resistant performance, so that the wear-resistant capacity of the protective outer cover is further improved; slidable internal spline driving teeth are arranged between the spline inner core and the limiting sleeve; a positioning ring block is embedded in the end face of the right side of the internal spline driving tooth, and the radius of the width of the positioning ring is the same as that of the limiting sleeve; an elastic gasket can be arranged on the left side of the limiting sleeve to play a role in buffering protection; the surface of the tooth part of the large tooth is provided with a plurality of spot lines.

Furthermore, a lubricating layer is arranged at the meshing position of the inner center of the inner spline and the driving teeth of the inner spline.

Furthermore, the lubricating layer is formed by coating a film on the bearing oil through titanium nitride physical vapor deposition.

Further, the thickness of lubricant film is 3 ~ 5 um.

Further, the outer wall of the body is coated with a nano ceramic layer.

Furthermore, the thickness of the nano ceramic layer is 1-3 mm.

Further, set up the louvre on the big tooth, the louvre orbit twists reverse the design, and general producer among the prior art can not design like this, and louvre annular design generally 3 can, its opening surface is greater than the inner wall.

Further, the pressure angle of the large tooth is 20 °.

Furthermore, the large teeth produced and designed are easy to chemically treat by adopting phosphate, and form an additional protective film, so that the large teeth have higher wear resistance and a lubricating effect.

The utility model relates to a novelty improves ingeniously, has replaced the structure and the material of protection enclosing cover, and its intensity is superior to the aluminium matter lid of general producer, has improved its life, simultaneously, sets up heat dissipation punchhole on the big tooth, the design that bright among the prior art has.

Drawings

Fig. 1 is a schematic structural diagram and a partial enlarged view thereof.

Fig. 2 is a schematic diagram of a large-tooth structure.

The figure is as follows: the heat dissipation device comprises a guide shaft 1, a limiting sleeve 2, an internal spline driving tooth 3, a body 4, a 42 nanometer ceramic layer, a large tooth 5, a phosphate protective film 51, a 52-point line, a protective shell 6, an internal layer 61, a PEEK film layer 62, a sealing plate 7, a positioning ring block 8, a spline internal core 9 and heat dissipation holes 10.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-2, the utility model relates to an isolator structure, which comprises a guide shaft 1, a body 4 and a position-limiting sleeve 2, wherein the position-limiting sleeve 2 is fixed at one end of the guide shaft and is in interference fit with the guide shaft; a body 4 is arranged at one end of the guide shaft 1, a concave table is arranged on the body, and a large tooth 5 is fixed on the concave table; the body 4 is internally provided with an accommodating cavity, a spline inner core 9 is arranged in the accommodating cavity, a tooth part of the spline inner core is exposed out of the body, the right end face of the body is provided with a sealing plate 7, the outer side of the sealing plate 7 is provided with a protective shell 6, and the protective shell covers the periphery of the body; wherein a part of the protective shell is pressed in the fixed big teeth; the protective outer cover comprises an inner layer 61 and a PEEK film layer 62 which are taken as improvement points, wherein the inner layer 61 is made of aluminum alloy plates, such as Al-Si series alloy, the strength of the protective outer cover is due to an aluminum cover, and meanwhile, the PEEK film layer has wear-resistant performance, so that the wear-resistant capacity of the protective outer cover is further improved; a slidable internal spline driving tooth 3 is arranged between the spline inner core and the limiting sleeve 2; a positioning ring block 8 is embedded on the end face of the right side of the internal spline driving tooth 3; the radius of the width of the positioning ring is the same as that of the limiting sleeve; an elastic gasket can be arranged on the left side of the limiting sleeve to play a role in buffering protection; the surface of the tooth part of the big tooth is provided with a plurality of point grains 52, and the point grains can increase the friction force.

In order to improve the lubricity, a lubricating layer (not shown) is arranged at the meshing position of the inner center of the inner spline and the driving teeth 3 of the inner spline, wherein the lubricating layer is formed by coating a film on bearing oil through titanium nitride physical vapor deposition, and the treatment thickness of the lubricating layer is 5 microns.

Further, the outer wall of the body 4 is coated with a nano ceramic layer 42 with the thickness of 1-3 mm.

Furthermore, the heat dissipation holes 10 are formed in the large teeth 5, the track of each heat dissipation hole is designed in a twisting mode, common manufacturers in the prior art cannot design the heat dissipation holes in a circular mode, the number of the heat dissipation holes can be generally 3, and the opening face of each heat dissipation hole is larger than that of the inner wall.

Further, the pressure angle of the large tooth 5 is 20 °.

Further, the large tooth surface has a phosphate protective film 51.

The isolator structure of the structure has multiple optimization, wherein the strength and the corrosion resistance of the isolator are improved by improving the protective shell, and meanwhile, the adopted body can be a purchased product, but a nano ceramic layer is obtained to be used as a wear-resistant layer.

Claims

1. The utility model provides an isolator structure, includes guiding axle, one-way cover and stop collar, its characterized in that: the limiting sleeve is fixed at one end of the guide shaft and is in interference fit with the guide shaft; a body is arranged at one end of the guide shaft, a concave table is arranged on the body, and a large tooth is fixed on the concave table; the body is internally provided with an accommodating cavity, a spline inner core is arranged in the accommodating cavity, a tooth part of the spline inner core is exposed out of the body, a sealing plate is arranged on the right end face of the body, a protective shell is arranged on the outer side of the sealing plate and covers the periphery of the body, and part of the protective shell is pressed in the fixed large teeth; the protective outer cover comprises an inner layer and a PEEK film layer; slidable internal spline driving teeth are arranged between the spline inner core and the limiting sleeve; a positioning ring block is embedded on the end face of the right side of the internal spline driving tooth; the radius of the width of the positioning ring is the same as that of the limiting sleeve; the surface of the tooth part of the large tooth is provided with a plurality of spot lines.

2. An isolator structure as claimed in claim 1, wherein: and a lubricating layer is arranged at the meshing position of the inner center of the internal spline and the driving teeth of the internal spline.

3. An isolator structure as claimed in claim 2, wherein: the lubricating layer is formed by coating bearing oil through titanium nitride physical vapor deposition.

4. An isolator structure as claimed in claim 2, wherein: the thickness of lubricating layer is 3 ~ 5 um.

5. An isolator structure as claimed in claim 1, wherein: the outer wall of the body is also coated with a nano ceramic layer.

6. An isolator structure as claimed in claim 5, wherein: the thickness of the nano ceramic layer is 1-3 mm.

7. An isolator structure as claimed in claim 1, wherein: the big teeth are provided with heat dissipation holes, and the track of each heat dissipation hole is twisted.

8. An isolator structure as claimed in claim 1, wherein: the pressure angle of the large tooth is 20 °.

9. An isolator structure as claimed in claim 1, wherein: the surface of the large tooth is provided with a phosphate protective film.