CN111946738A

CN111946738A - Special bearing

Info

Publication number: CN111946738A
Application number: CN202010979452.4A
Authority: CN
Inventors: 严树超; 王福铮; 顾梅
Original assignee: Jiangsu Niuzhen Bearing Co ltd
Current assignee: Jiangsu Niuzhen Bearing Co ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2020-11-17

Abstract

The invention discloses a special bearing, which adopts the technical scheme that: including the outer lane, the outer lane middle part is square opening, still includes: a Leluo triangular block rotatably connected in the opening in the outer ring; a support shaft fixed at the center of the LEILO triangular block; a stabilizing member for stabilizing the rotation of said lyocell triangle; a lubricating member for lubricating the edge face of the LEILO triangular block; cooling means for assisting in cooling the outer race and the Lelo triangle; the shielding component is used for preventing dust from entering the opening in the middle of the outer ring; and an auxiliary mounting component for assisting the connection and mounting of the supporting shaft; when the special bearing is used, the supporting shaft can move in a rectangular track, and the special bearing can be suitable for machinery required by other square track lines such as a square hole drilling machine.

Description

Special bearing

Technical Field

The invention relates to the field of bearings, in particular to a special bearing.

Background

A special triangle is mathematically called a Leluo triangle and an arc triangle, and is firstly researched by a mechanist Leluo, wherein the arc triangle is drawn by drawing a regular triangle, and then drawing an arc by respectively taking three vertexes as circle centers and side lengths as radii; the Lelo triangle is a graph with the smallest area which can be formed by a fixed-width curve, and the area of the graph is 1/2{ pi- [ (root number 3)/2] } s ^2, and s is the fixed-width; placing a graph between two parallel lines to make it tangent to the two parallel lines can do: no matter how the graph moves, as long as it is still in the two parallel lines, the graph is always tangent to the two parallel lines, but the center point forms a circle; a reuleaux triangular shaped drill bit can drill a square hole.

At present, a bearing taking a rectangular shape as a running rotation track is lacked in the market, and most of the bearings are also shaft-centering bearings, so that the development of a new bearing taking a rectangular shape as a running rotation track is still unprecedented work at present.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a special bearing to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a special type bearing, includes the outer lane, outer lane middle part is square opening, still includes:

a Leluo triangular block rotatably connected in the opening in the outer ring;

a support shaft fixed at the center of the LEILO triangular block;

a stabilizing member for stabilizing the rotation of said lyocell triangle;

a lubricating member for lubricating the edge face of the LEILO triangular block;

cooling means for assisting in cooling the outer race and the Lelo triangle;

the shielding component is used for preventing dust from entering the opening in the middle of the outer ring;

and an auxiliary mounting part for assisting the connection and mounting of the support shaft.

By adopting the technical scheme, the special bearing is developed in an unprecedented bearing form, namely, the bearing takes the rectangular track line as the running track, and the supporting shaft can move in the rectangular track when in use, so that the special bearing can be suitable for machinery required by other square track lines such as a square hole drilling machine and the like; when the bearing is used, the support shaft can be connected with the external output, the rotation track of the support shaft can be limited to be square by utilizing the rotation of the Lelo triangular block in the outer ring, the bearing can be conveniently and integrally fixed by utilizing the stabilizing part, and the bearing can be conveniently and integrally fixed by utilizing the lubricating part.

Further, stabilizing part includes front end plate, back end plate, outer cutting ferrule and a plurality of screw, the front end plate sets up the preceding terminal surface of outer lane, the back end plate sets up the rear end face of outer lane, outer cutting ferrule overlaps and establishes the front end plate the back end plate and the outside of outer lane, a plurality of the screw is threaded connection respectively the front end plate the outer lane the back end plate and between the outer cutting ferrule.

Through adopting above-mentioned technical scheme, utilize stabilizing parts can improve the holistic stability of bearing, front end plate and back end plate can prevent that the roll triangle-shaped piece from breaking away from the outer lane, utilize outer cutting ferrule and screw to make things convenient for the equipment of bearing.

Further, the lubricating part comprises a first lubricating hole, a second lubricating hole, a sinking groove and a plugging column, the first lubricating hole is formed in the outer ring, the second lubricating hole is formed in the outer clamping sleeve and communicated with the first lubricating hole, the sinking groove is formed in the end portion of the second lubricating hole, and the plugging column is in threaded connection with the sinking groove and the second lubricating hole.

By adopting the technical scheme, when the plugging columns in the sink groove and the second lubricating hole channel are opened by the screw, lubricating oil can be injected into the rotating surface of the Lelo triangular block through the second lubricating hole channel and the first lubricating hole channel.

Further, the cooling part is including dodging annular, cooling loop, first branch road, second branch road and perforation, dodging the annular and seting up in the outer cutting ferrule, cooling loop sets up dodge in the annular, first branch road with the second branch road communicates respectively to be fixed cooling loop's both sides, the perforation is seted up the both sides of outer cutting ferrule.

Through adopting above-mentioned technical scheme, when needs cool off the bearing, can connect external water route through first branch road and second branch road, the cooling loop realization water-cooling effect in the annular is dodged to the rethread.

Further, the shielding component comprises a rectangular holding groove, an outward extending rectangular ring and a corrugated rubber sheet, the outward extending rectangular ring is arranged in the outer end plate and is used for the support shaft to swing and penetrate through, the outward extending rectangular ring is integrally formed on the end face of the outer end plate, the corrugated rubber sheet is fixed outside the support shaft, and four sides of the corrugated rubber sheet are fixed on the inner wall of an opening of the outward extending rectangular ring.

Through adopting above-mentioned technical scheme, when the back shaft rotated in rectangle holding tank department, the ripple sheet rubber in the overhanging rectangular ring can shelter from rectangle holding tank department.

Further, the auxiliary mounting component comprises a clamping head, a notch groove, a threaded hole and a spline groove, the clamping head is fixed to the end portion of the supporting shaft, the notch groove is formed in the position of the clamping head, the threaded hole is formed in the clamping head, and the spline groove is formed in the end portion of the supporting shaft.

By adopting the technical scheme, the clamping head in the auxiliary mounting component can be used for facilitating the outer connecting rod piece, and the threaded hole and the spline groove can be used for improving convenience in mounting and positioning.

Furthermore, the end part of the outer clamping sleeve is provided with a connecting plate part which is integrally formed with the outer clamping sleeve, and a plurality of through holes are formed in the connecting plate part.

Through adopting above-mentioned technical scheme, utilize the through-hole on the connecting plate portion can make things convenient for the installation of this bearing.

Furthermore, the first branch is connected with a first extending pipeline in an internal thread mode, and the second branch is connected with a second extending pipeline in an internal thread mode.

Through adopting above-mentioned technical scheme, utilize first outside pipeline and the outside pipeline that stretches of second to make things convenient for external water route and the being connected of first branch road and second branch road.

Further, sealing gaskets are respectively arranged between the front end plate and the outer ring, between the outer ring and the rear end plate, between the outer clamping sleeve and the outer ring and between the inner ring.

Through adopting above-mentioned technical scheme, sealed setting up of filling up can improve the holistic leakproofness of bearing.

Furthermore, a plurality of balls are embedded in the side surface of the Lelo triangular block and are connected with the Lelo triangular block in a rotating mode.

Through adopting above-mentioned technical scheme, the setting of ball can improve the pivoted flexibility of the triangle-shaped piece of rice Rou.

Further, the surface of the outer ferrule is coated with a layer of antifouling coating, so that a preparation method of the antifouling coating is provided, and the specific preparation method comprises the following steps:

firstly, selecting the following components by weight: 50-70 parts of polytetrafluoroethylene, 30-40 parts of vinyl alcohol, 20-30 parts of acetone, 30-40 parts of isooctyl acetate, 15-25 parts of propane sultone, 5-10 parts of acrylic acid, 20-30 parts of polydimethylsiloxane, 20-30 parts of phenyl o-hydroxybenzoate, 10-20 parts of methyl silicone oil and 10-20 parts of ethyl acetate;

step two, preparing an intermediate solution of the antifouling coating: uniformly mixing polytetrafluoroethylene, vinyl alcohol, acetone and isooctyl acetate, heating to 200-210 ℃, and preserving heat for 1-2 h;

step three, preparing an antifouling coating solution: cooling the intermediate solution of the antifouling coating obtained in the step two to 70-80 ℃, sequentially adding propane sultone, acrylic acid, polydimethylsiloxane, phenyl o-hydroxybenzoate, methyl silicone oil and ethyl acetate, uniformly mixing, heating the solution to 50-60 ℃, and keeping the temperature for 2-3h to obtain an antifouling coating solution;

step four: spraying the antifouling coating solution obtained in the third step on the surface of the outer cutting sleeve by using a spray gun;

step five: and (4) drying the outer clamping sleeve coated with the antifouling coating in the step four in an oven at the temperature of 40-45 ℃ for 2-3 h.

By adopting the technical scheme, the preparation process flow of the antifouling coating is simple, and the produced antifouling coating has good antifouling capacity.

In summary, the invention mainly has the following beneficial effects:

the special bearing is developed in an unprecedented bearing mode, namely, the bearing takes a rectangular track line as an operation track, and a support shaft can move in a rectangular track when in use, so that the special bearing can be suitable for machinery required by other square track lines such as a square hole drilling machine and the like; when the bearing is used, the support shaft can be connected with the external output, the rotation track of the support shaft can be limited to be square by utilizing the rotation of the Lelo triangular block in the outer ring, the bearing can be conveniently and integrally fixed by utilizing the stabilizing part, and the bearing can be conveniently and integrally fixed by utilizing the lubricating part.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a cross-sectional view of one embodiment of the present invention;

FIG. 4 is an enlarged view of the portion B in FIG. 3;

FIG. 5 is a second cross-sectional view of the structure of one embodiment of the present invention;

fig. 6 is an enlarged schematic view of the portion C in fig. 5.

In the figure: 1. an outer ring; 11. a Leluo triangular block; 12. a support shaft; 2. a stabilizing member; 3. a lubricated component; 4. a cooling member; 5. a shielding member; 6. an auxiliary mounting member; 21. a front end plate; 22. a rear end plate; 23. an outer ferrule; 24. a screw; 31. a first lubrication duct; 32. a second lubrication duct; 33. sinking a groove; 34. plugging the column; 41. avoiding the ring groove; 42. a cooling loop; 43. a first branch; 44. a second branch circuit; 45. perforating; 51. a rectangular holding groove; 52. an outward extending rectangular ring; 53. a corrugated rubber sheet; 61. clamping a head; 62. a notch groove; 63. a threaded hole; 64. a spline groove; 231. a connecting plate portion; 232. a through hole; 431. a first overhanging duct; 432. a second outwardly extending duct.

Detailed Description

The invention is described in further detail below with reference to figures 1-6.

Example 1

Referring to fig. 1, 3 and 4, a special bearing mainly comprises the following parts:

the outer ring 1, wherein the middle part of the outer ring 1 is a square opening;

a Leluo triangular block 11 rotatably connected in the opening of the outer ring 1;

a support shaft 12 fixed at the center of the lelo triangle block 11;

a stabilizing member 2 for stabilizing the rotation of the cloisonne's triangular block 11;

a lubricating member 3 for lubricating the edge face of the LEURO triangular block 11;

a cooling member 4 for assisting cooling of the outer ring 1 and the Lelo triangular block 11;

a shielding component 5 for preventing the dust from entering the opening in the middle of the outer ring 1;

and an auxiliary mounting part 6 for connecting and mounting the auxiliary support shaft 12.

Referring to fig. 1, 3 and 4, the special bearing is developed, and the developed bearing is an unprecedented bearing form, namely, the bearing takes a rectangular track line as a running track, and when the bearing is used, a support shaft 12 can move in the rectangular track, so that the bearing is suitable for machinery required by other square track lines such as a square hole drilling machine and the like; when using this bearing, can be with back shaft 12 with external output connection, utilize the rotation of lelo triangle-shaped piece 11 in outer lane 1 can restrict the rotation orbit of back shaft 12 and be square, can make things convenient for this bearing's monolithic stationary through utilizing stabilizing part 2, utilize lubricated part 3 can be convenient.

Referring to fig. 5 and 6, the stabilizing member 2 includes a front end plate 21, a rear end plate 22, an outer clamping sleeve 23 and a plurality of screws 24, the front end plate 21 is disposed on the front end surface of the outer ring 1, the rear end plate 22 is disposed on the rear end surface of the outer ring 1, the outer clamping sleeve 23 is sleeved on the front end plate 21, the rear end plate 22 and the outer ring 1, the plurality of screws 24 are respectively and threadedly connected between the front end plate 21, the outer ring 1, the rear end plate 22 and the outer clamping sleeve 23, the stabilizing member 2 can improve the stability of the whole bearing, the front end plate 21 and the rear end plate 22 can prevent the lyocell triangular block 11 from separating from the outer ring 1, and the outer clamping sleeve 23 and the screws 24 can facilitate the assembly of the.

Referring to fig. 5 and 6, the lubricating part 3 includes a first lubricating hole 31, a second lubricating hole 32, a sink groove 33 and a blocking column 34, the first lubricating hole 31 is provided in the outer ring 1, the second lubricating hole 32 is provided in the outer sleeve 23 and is communicated with the first lubricating hole 31, the sink groove 33 is provided at an end portion of the second lubricating hole 32, the blocking column 34 is screwed in the sink groove 33 and the second lubricating hole 32, and when the sink groove 33 and the blocking column 34 in the second lubricating hole 32 are opened by screwing, lubricating oil can be injected into a rotating surface of the riley triangular block 11 through the second lubricating hole 32 and the first lubricating hole 31.

Referring to fig. 3 and 4, the cooling part 4 includes an avoiding ring groove 41, a cooling loop 42, a first branch 43, a second branch 44 and a through hole 45, the avoiding ring groove 41 is formed in the outer sleeve 23, the cooling loop 42 is formed in the avoiding ring groove 41, the first branch 43 and the second branch 44 are respectively communicated and fixed on two sides of the cooling loop 42, the through hole 45 is formed on two sides of the outer sleeve 23, when the bearing needs to be cooled, the first branch 43 and the second branch 44 can be connected with an external water channel, and then the water cooling effect is achieved through the cooling loop 42 in the avoiding ring groove 41.

Referring to fig. 1 and 2, the shielding member 5 includes a rectangular holding groove 51, an outward extending rectangular ring 52 and a corrugated rubber sheet 53, the outward extending rectangular ring 52 is opened in the outer end plate for the support shaft 12 to swing through, the outward extending rectangular ring 52 is integrally formed on the end surface of the outer end plate, the corrugated rubber sheet 53 is fixed outside the support shaft 12, four sides of the corrugated rubber sheet 53 are fixed on the inner wall of the opening of the outward extending rectangular ring 52, and when the support shaft 12 rotates at the rectangular holding groove 51, the corrugated rubber sheet 53 in the outward extending rectangular ring 52 can shield the rectangular holding groove 51.

Referring to fig. 1 and 2, the auxiliary mounting member 6 includes a chuck 61, a notch groove 62, a threaded hole 63 and a spline groove 64, the chuck 61 is fixed at the end of the support shaft 12, the notch groove 62 is opened at the chuck 61, the threaded hole 63 is opened in the chuck 61, the spline groove 64 is opened at the end of the support shaft 12, the chuck 61 in the auxiliary mounting member 6 can facilitate the outer connecting rod, and the threaded hole 63 and the spline groove 64 can improve the convenience of mounting and positioning.

Referring to fig. 1 and 5, in order to facilitate the installation and fixation of the present bearing, the end of the outer sleeve 23 is provided with a connecting plate 231 integrally formed with the outer sleeve 23, a plurality of through holes 232 are formed in the connecting plate 231, and the installation of the present bearing can be facilitated by the through holes 232 on the connecting plate 231.

Referring to fig. 3 and 4, in order to facilitate the cooling operation, a first extension pipe 431 is screwed into the first branch 43, and a second extension pipe 432 is screwed into the second branch 44, and the first extension pipe 431 and the second extension pipe 432 are used to facilitate the connection of an external water path to the first branch 43 and the second branch 44.

Referring to fig. 5 and 6, in order to ensure that the bearing has good sealing performance after being assembled, sealing gaskets are respectively arranged between the front end plate 21 and the outer ring 1, between the outer ring 1 and the rear end plate 22, and between the outer clamping sleeve 23 and the outer ring 1 and between the outer clamping sleeve and the inner ring, and the arrangement of the sealing gaskets can improve the sealing performance of the whole bearing.

Referring to fig. 3 and 4, in order to make the rotation of the reuleaux triangular block 11 more flexible, a plurality of balls are rotatably connected to the side surface of the reuleaux triangular block 11 in an embedded manner, and the arrangement of the balls can improve the flexibility of the rotation of the reuleaux triangular block 11.

Example 2

The difference from the embodiment 1 is that the surface of the outer cutting sleeve 23 is coated with an antifouling coating, the surface of the outer cutting sleeve 23 is easy to be polluted because the outer cutting sleeve 23 is directly contacted with the outside, and the surface of the outer cutting sleeve 23 is also coated with the antifouling coating in order to clean the surface of the outer cutting sleeve 23 conveniently, so that the preparation method of the antifouling coating is provided, and the specific preparation method comprises the following steps:

firstly, selecting the following components by weight: 50 parts of polytetrafluoroethylene, 30 parts of vinyl alcohol, 20 parts of acetone, 30 parts of isooctyl acetate, 15 parts of propane sultone, 5 parts of acrylic acid, 20 parts of polydimethylsiloxane, 20 parts of phenyl o-hydroxybenzoate, 10 parts of methyl silicone oil and 10 parts of ethyl acetate;

step two, preparing an intermediate solution of the antifouling coating: uniformly mixing polytetrafluoroethylene, vinyl alcohol, acetone and isooctyl acetate, heating to 200 ℃, and preserving heat for 1 h;

step three, preparing an antifouling coating solution: cooling the intermediate solution of the antifouling coating obtained in the step two to 70 ℃, sequentially adding propane sultone, acrylic acid, polydimethylsiloxane, phenyl o-hydroxybenzoate, methyl silicone oil and ethyl acetate, uniformly mixing, heating the solution to 50 ℃, and keeping the temperature for 2 hours to obtain an antifouling coating solution;

step four: spraying the antifouling coating solution obtained in the third step on the surface of the outer cutting sleeve 23 by using a spray gun;

step five: and (4) drying the outer clamping sleeve 23 coated with the antifouling coating in the step four in an oven at 40 ℃ for 2 hours.

The preparation process flow of the antifouling coating is simple, and the produced antifouling coating has good antifouling capability.

Example 3

The difference from example 2 is the preparation of the antifouling coating, wherein the antifouling coating is prepared as follows:

firstly, selecting the following components by weight: 55 parts of polytetrafluoroethylene, 35 parts of vinyl alcohol, 25 parts of acetone, 30 parts of isooctyl acetate, 15 parts of propane sultone, 5 parts of acrylic acid, 20 parts of polydimethylsiloxane, 20 parts of phenyl o-hydroxybenzoate, 10 parts of methyl silicone oil and 10 parts of ethyl acetate;

step two, preparing an intermediate solution of the antifouling coating: uniformly mixing polytetrafluoroethylene, vinyl alcohol, acetone and isooctyl acetate, heating to 204 ℃, and preserving heat for 1 h;

step three, preparing an antifouling coating solution: cooling the intermediate solution of the antifouling coating obtained in the step two to 74 ℃, sequentially adding propane sultone, acrylic acid, polydimethylsiloxane, phenyl o-hydroxybenzoate, methyl silicone oil and ethyl acetate, uniformly mixing, heating the solution to 53 ℃, and keeping the temperature for 2 hours to obtain an antifouling coating solution;

Example 4

firstly, selecting the following components by weight: 55 parts of polytetrafluoroethylene, 35 parts of vinyl alcohol, 25 parts of acetone, 35 parts of isooctyl acetate, 20 parts of propane sultone, 5 parts of acrylic acid, 20 parts of polydimethylsiloxane, 20 parts of phenyl o-hydroxybenzoate, 14 parts of methyl silicone oil and 10 parts of ethyl acetate;

step two, preparing an intermediate solution of the antifouling coating: uniformly mixing polytetrafluoroethylene, vinyl alcohol, acetone and isooctyl acetate, heating to 206 ℃, and preserving heat for 1 h;

step three, preparing an antifouling coating solution: cooling the intermediate solution of the antifouling coating obtained in the step two to 76 ℃, sequentially adding propane sultone, acrylic acid, polydimethylsiloxane, phenyl o-hydroxybenzoate, methyl silicone oil and ethyl acetate, uniformly mixing, heating the solution to 55 ℃, and keeping the temperature for 2 hours to obtain an antifouling coating solution;

Example 5

firstly, selecting the following components by weight: 64 parts of polytetrafluoroethylene, 35 parts of vinyl alcohol, 25 parts of acetone, 35 parts of isooctyl acetate, 20 parts of propane sultone, 5 parts of acrylic acid, 20 parts of polydimethylsiloxane, 20 parts of phenyl o-hydroxybenzoate, 14 parts of methyl silicone oil and 10 parts of ethyl acetate;

step two, preparing an intermediate solution of the antifouling coating: uniformly mixing polytetrafluoroethylene, vinyl alcohol, acetone and isooctyl acetate, heating to 208 ℃, and preserving heat for 1 h;

step three, preparing an antifouling coating solution: cooling the intermediate solution of the antifouling coating obtained in the step two to 76 ℃, sequentially adding propane sultone, acrylic acid, polydimethylsiloxane, phenyl o-hydroxybenzoate, methyl silicone oil and ethyl acetate, uniformly mixing, heating the solution to 58 ℃, and keeping the temperature for 2 hours to obtain an antifouling coating solution;

step five: and (4) drying the outer clamping sleeve 23 coated with the antifouling coating in the step four in an oven at the temperature of 45 ℃ for 2 hours.

Example 6

firstly, selecting the following components by weight: 70 parts of polytetrafluoroethylene, 40 parts of vinyl alcohol, 30 parts of acetone, 40 parts of isooctyl acetate, 20 parts of propane sultone, 5 parts of acrylic acid, 20 parts of polydimethylsiloxane, 20 parts of phenyl o-hydroxybenzoate, 14 parts of methyl silicone oil and 10 parts of ethyl acetate;

step two, preparing an intermediate solution of the antifouling coating: uniformly mixing polytetrafluoroethylene, vinyl alcohol, acetone and isooctyl acetate, heating to 210 ℃, and preserving heat for 1 h;

Example 7

firstly, selecting the following components by weight: 70 parts of polytetrafluoroethylene, 40 parts of vinyl alcohol, 30 parts of acetone, 40 parts of isooctyl acetate, 25 parts of propane sultone, 10 parts of acrylic acid, 30 parts of polydimethylsiloxane, 30 parts of phenyl o-hydroxybenzoate, 20 parts of methyl silicone oil and 20 parts of ethyl acetate;

Surface hardness and peel strength tests of the anti-fouling coated outer ferrule 23 of examples 2-7, the data for all examples were normalized based on the data for example 2 for ease of comparison.

TABLE 1

	Surface hardness	Peel strength
			Example 2	100％	100％
Example 3	108％	104％
			Example 4	107％	106％
Example 5	112％	123％
			Example 6	106％	108％
Example 7	104％	108％

From the above experiment, the surface hardness and peel strength of the outer ferrule 23 coated with the antifouling coating are greatly improved, and embodiment 5 is the best embodiment.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a special type bearing, includes outer lane (1), outer lane (1) middle part is square opening, its characterized in that: further comprising:

a Leluo triangular block (11) rotatably connected in an opening in the outer ring (1);

a support shaft (12) fixed at the center of the LEILOVA triangular block (11);

-stabilizing means (2) for stabilizing the rotation of said reuleaux triangle (11);

a lubricating member (3) for lubricating the edge face of the LEILOVER-SHAPED BLOCK (11);

cooling means (4) for assisting cooling of the outer ring (1) and the LEILOVER-TRIANGLE-SHAPED BLOCK (11);

a shielding component (5) for preventing the dust from entering the opening in the middle of the outer ring (1);

and an auxiliary mounting part (6) for assisting the connection and mounting of the supporting shaft (12).

2. A special bearing according to claim 1, characterized in that: stabilizing member (2) includes front end plate (21), rear end plate (22), outer cutting ferrule (23) and a plurality of screw (24), front end plate (21) sets up the preceding terminal surface of outer lane (1), rear end plate (22) set up the rear end face of outer lane (1), outer cutting ferrule (23) cover is established front end plate (21) rear end plate (22) and the outside of outer lane (1), a plurality of screw (24) threaded connection respectively front end plate (21) outer lane (1) rear end plate (22) and between outer cutting ferrule (23).

3. A special bearing according to claim 2, characterized in that: lubricated part (3) are including first lubricated pore (31), second lubricated pore (32), heavy groove (33) and shutoff post (34), first lubricated pore (31) are seted up in outer lane (1), second lubricated pore (32) are seted up in outer cutting ferrule (23) and with first lubricated pore (31) communicate each other, heavy groove (33) are seted up second lubricated pore (32) tip, shutoff post (34) threaded connection be in heavy groove (33) with in the second lubricated pore (32).

4. A special bearing according to claim 2, characterized in that: cooling part (4) are including dodging annular (41), cooling loop (42), first branch road (43), second branch road (44) and perforation (45), dodge annular (41) and set up in outer cutting ferrule (23), cooling loop (42) set up dodge in annular (41), first branch road (43) with second branch road (44) communicate respectively to be fixed the both sides of cooling loop (42), perforation (45) are set up the both sides of outer cutting ferrule (23).

5. A special bearing according to claim 2, characterized in that: the shielding component (5) comprises a rectangular retaining groove (51), an outward extending rectangular ring (52) and a corrugated rubber sheet (53), the outward extending rectangular ring (52) is arranged in the outer end plate and is used for the supporting shaft (12) to swing and penetrate through, the outward extending rectangular ring (52) is integrally formed on the end face of the outer end plate, the corrugated rubber sheet (53) is fixed outside the supporting shaft (12), and four sides of the corrugated rubber sheet (53) are fixed on the inner wall of an opening of the outward extending rectangular ring (52).

6. A special bearing according to claim 1, characterized in that: supplementary installation component (6) include dop (61), opening groove (62), screw hole (63) and spline groove (64), dop (61) are fixed back shaft (12) tip, opening groove (62) are seted up dop (61) department, screw hole (63) are seted up in dop (61), spline groove (64) are seted up back shaft (12) tip.

7. A special bearing according to claim 2, characterized in that: the end part of the outer cutting sleeve (23) is provided with a connecting plate part (231) which is integrally formed with the outer cutting sleeve (23), and a plurality of through holes (232) are formed in the connecting plate part (231).

8. A special bearing according to claim 1, characterized in that: a first outward extending pipeline (431) is connected to the first branch (43) in a threaded mode, and a second outward extending pipeline (432) is connected to the second branch (44) in a threaded mode.

9. A special bearing according to claim 1, characterized in that: sealing gaskets are respectively arranged between the front end plate (21) and the outer ring (1), between the outer ring (1) and the rear end plate (22), between the outer clamping sleeve (23) and the outer ring (1) and between the inner rings.

10. A special bearing according to claim 1, characterized in that: the edge surface of the Lelo triangular block (11) is embedded with a plurality of balls in a rotating connection mode.