CN213870671U

CN213870671U - High-locking-force nut for melt crystallizer

Info

Publication number: CN213870671U
Application number: CN202022518144.XU
Authority: CN
Inventors: 沈明涛
Original assignee: Wuxi Dawn High Strength Fastener Co Ltd
Current assignee: Wuxi Dawn High Strength Fastener Co Ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-08-03
Anticipated expiration: 2030-11-04

Abstract

The utility model relates to a nut technical field just discloses a melting is nut of high locking force for crystallizer, including first nut spare and tightening ring, round platform shape hole has been seted up to first nut spare bottom, and round platform shape downthehole portion is provided with second nut spare and rand, and second nut spare top surface and the contact of the downthehole top surface in round platform shape, rand top surface and the contact of the inside top surface in second nut spare, rand side and the contact of round platform shape downthehole wall, second nut spare bottom surface and the contact of third nut spare top surface. According to the high-locking-force nut for the melt crystallizer, the first nut piece, the second nut piece and the third nut piece are arranged, and the interaction force among the first nut piece, the second nut piece and the third nut piece is utilized to offset the vibration force generated by the outside world, so that the locking capacity of the nut is greatly improved; the semicircular grooves are formed in the three threaded holes, so that small burrs broken on the surface of the bolt are stored when the nut and the bolt rotate mutually, and the influence of the burrs on the locking capacity between the nut and the bolt is eliminated.

Description

High-locking-force nut for melt crystallizer

Technical Field

The utility model relates to a nut technical field specifically is a nut of high locking force for melt crystallizer.

Background

The melt crystallizer is widely applied to the production of high-purity crystal products of chemical intermediates, medical intermediates and biochemical products.

The method has strong practicability, and different types of equipment are selected according to different process requirements; the equipment is compact and reasonable. Good practical application effect, low crystallization loss and the like. The fasteners, especially the nuts, which are practical on the existing melting crystallizer are often shared with bolts with the same size, the related joint part is fixed, a large number of nuts are needed to be used for fastening on the melting crystallizer, the fastening effect of the nuts influences the safe operation of the melting crystallizer, the existing nuts have simple structures, generally only one layer results in no large anti-loosening effect, the nuts are easy to loosen due to vibration and other reasons after long-time use, and because the screw thread on the surface of the bolt is difficult to avoid burr generation due to the problem of workmanship, the loosening of the nut is easier to accelerate when fine burrs are broken between the nut and the bolt, the stability of connection can not be kept for a long time, and the regular detection is required by workers, this greatly increases the workload of workers to ensure the reliability of the bolt connection, and therefore, it is necessary to provide a nut for a melt crystallizer with a high locking force.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a melting is nut of high locking force for crystallizer to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a nut with high locking force for a melting crystallizer comprises a first nut piece and a tightening ring, wherein a circular truncated cone-shaped hole is formed in the bottom of the first nut piece, the circular truncated cone-shaped hole is narrow at the top and wide at the bottom, a second nut piece and a clamping ring are arranged in the circular truncated cone-shaped hole, the clamping ring is sleeved on the outer side of the second nut piece, the top surface of the second nut piece is in contact with the top surface in the circular truncated cone-shaped hole, the top surface of the clamping ring is in contact with the top surface in the second nut piece, the side surface of the clamping ring is in contact with the inner wall of the circular truncated cone-shaped hole, the bottom surface of the second nut piece is in contact with the top surface of a third nut piece, the bottom surface of the third nut piece is fixedly connected with the top surface of an anti-slip ring, threaded holes are formed in the middle positions of the first nut piece, the second nut piece and the third nut piece, the threaded holes are respectively located in the first nut piece, the second nut piece and the third nut piece, and the threaded holes are sequentially connected end to end from top, it is three the thread hole inner wall has seted up a semicircular groove along the axis direction, semicircular groove extends to third nut spare thread hole inner wall bottom from first nut spare screw hole inner wall top, and is three be provided with the rubber circle between the screw hole, the rubber circle sets up about two, the top the rubber circle is located between first nut spare bottom surface and the second nut spare top surface, the below the rubber circle is located between second nut spare bottom surface and the third nut spare top surface, narrow outer width in the tightening ring, the tightening ring cover is established in the first nut spare outside, the joint of tightening ring inner circle is between rand bottom surface and third nut spare top surface.

Preferably, an upper chamfer and a lower chamfer are arranged at the upper end and the lower end of the threaded hole of the first nut member, the threaded hole of the second nut member and the threaded hole of the third nut member, and the two rubber rings are positioned inside the adjacent upper chamfer and the adjacent lower chamfer.

Preferably, a layer of metallic tin is plated on the inner walls of the threaded holes of the first nut member, the second nut member and the third nut member.

Preferably, the anti-skidding ring is made of rubber, and the bottom surface of the anti-skidding ring is provided with anti-skidding surfaces in the same direction as the internal threads of the three threaded holes.

Preferably, the tightening ring is composed of a circle of rubber rings which are not connected end to end, fixed blocks are arranged at two ends of the tightening ring, and the fixed blocks are connected through small screw threads.

Compared with the prior art, the beneficial effects of the utility model are that: according to the high-locking-force nut for the melt crystallizer, the first nut piece, the second nut piece and the third nut piece are arranged, and the interaction force among the first nut piece, the second nut piece and the third nut piece is utilized to offset the vibration force generated by the outside world, so that the locking capacity of the nut is greatly improved; the semicircular grooves are formed in the three threaded holes, so that fine burrs broken on the surface of the bolt are accommodated when the nut and the bolt rotate mutually, and the influence of the burrs on the locking capacity between the nut and the bolt is eliminated; the locking between the nut and the bolt can be manually controlled through the matching between the clamping ring and the tightening ring, so that a worker can conveniently and quickly disassemble the nut and check the pre-tightening force between the nut and the bolt; through setting up the rubber circle, increase area of contact between nut and the bolt, reinforcing frictional force improves the locking ability of nut, improves the security.

Drawings

FIG. 1 is a schematic front view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a bottom view of the present invention;

fig. 4 is a front sectional view of the present invention;

fig. 5 is a sectional view of a second nut member of the present invention.

In the figure: the nut comprises a first nut member 1, a second nut member 2, a clamping ring 3, a third nut member 4, an anti-skidding ring 5, a rubber ring 6, a threaded hole 7, a semicircular groove 8, a tightening ring 9, a fixing block 10 and a small screw 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-5, the present invention provides a technical solution: a high-locking-force nut for a melt crystallizer comprises a first nut member 1 and a tightening ring 9, wherein a circular truncated cone-shaped hole is formed in the bottom of the first nut member 1, the circular truncated cone-shaped hole is narrow at the top and wide at the bottom, a second nut member 2 and a clamping ring 3 are arranged in the circular truncated cone-shaped hole, the clamping ring 3 is sleeved on the outer side of the second nut member 2, the top surface of the second nut member 2 is contacted with the top surface in the circular truncated cone-shaped hole, the top surface of the clamping ring 3 is contacted with the top surface in the second nut member 2, the side surface of the clamping ring 3 is contacted with the inner wall of the circular truncated cone-shaped hole, the bottom surface of the second nut member 2 is contacted with the top surface of a third nut member 4, the high-locking-force nut for the melt crystallizer is characterized in that the first nut member 1, the second nut member 2 and the third nut member 4 are arranged to utilize mutual acting force among the three to offset vibration force generated by the outside, the lock capability of the nut is greatly improved, and the bottom surface of the third nut member 4 is fixedly connected with the top surface of an anti-slip ring 5, the anti-skid ring 5 is made of rubber, the bottom surface of the anti-skid ring 5 is provided with an anti-skid surface in the same direction as the internal threads of the three threaded holes 7, threaded holes 7 are formed in the middle positions of the first nut member 1, the second nut member 2 and the third nut member 4, the three threaded holes 7 are respectively positioned in the first nut member 1, the second nut member 2 and the third nut member 4, the three threaded holes 7 are sequentially connected end to end from top to bottom, the inner walls of the threaded holes 7 of the first nut member 1, the threaded holes 7 of the second nut member 2 and the threaded holes 7 of the third nut member 4 are all plated with a layer of metallic tin, the inner walls of the three threaded holes 7 are provided with a semicircular groove 8 along the axial direction, the semicircular groove 8 extends from the top end of the inner wall of the threaded hole 7 of the first nut member 1 to the bottom end of the inner wall of the threaded hole 7 of the third nut member 4, and tiny broken burrs on the surface of the bolt are accommodated when the three threaded holes 7 are mutually rotated with the nut by the semicircular groove 8, eliminating the influence of burrs on the locking capacity between the nut and the bolt, arranging rubber rings 6 between three threaded holes 7, arranging the rubber rings 6 up and down, arranging the upper ends and the lower ends of the threaded holes 7 of a first nut member 1, the threaded holes 7 of a second nut member 2 and the threaded holes 7 of a third nut member 4 with upper chamfers and lower chamfers, arranging the two rubber rings 6 inside the adjacent upper chamfers and lower chamfers, arranging the upper rubber ring 6 between the bottom surface of the first nut member 1 and the top surface of the second nut member 2, arranging the lower rubber ring 6 between the bottom surface of the second nut member 2 and the top surface of the third nut member 4, increasing the contact area between the nut and the bolt by arranging the rubber rings 6, enhancing the friction force, improving the anti-loosening capacity of the nut, improving the safety, narrowing the inside and widening the tightening ring 9, arranging the tightening ring 9 outside the first nut member 1, clamping the inner ring 9 between the bottom surface of a clamping ring 3 and the top surface of the third nut member 4, the tightening ring 9 is composed of a circle of rubber rings which are not connected end to end, fixed blocks 10 are arranged at two ends of the tightening ring 9, the two fixed blocks 10 are connected through small screws 11 in a threaded mode, locking between the nuts and the bolts can be controlled manually through matching between the clamping ring 3 and the tightening ring 9, and the quick disassembling of the nuts and the pre-tightening force between the nuts and the bolts can be conveniently and quickly disassembled by workers.

When the nut is used, the clamping ring 9 is sleeved outside the second nut piece 2, the third nut piece 4, the second nut piece 2 and the first nut piece 1 are sequentially connected onto the bolt through the threaded hole 7 from bottom to top, the tightening ring 9 is sleeved outside the nut, the narrow inner ring of the tightening ring 9 is clamped into a gap between the bottom of the clamping ring 3 and the top of the third nut piece 4, and then the tightening ring 9 is pre-tightened through the small screw 11, so that the locking state between the nut and the bolt is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high locking force nut for a melt crystallizer, comprising a first nut member (1) and a tightening ring (9), characterized in that: round platform shape hole has been seted up to first nut spare (1) bottom, narrow width under the round platform shape hole is last, round platform shape hole inside is provided with second nut spare (2) and rand (3), rand (3) cover is established in second nut spare (2) outside, second nut spare (2) top surface and the contact of the inside top surface in round platform shape hole, rand (3) top surface and the contact of the inside top surface of second nut spare (2), rand (3) side and the contact of round platform shape downthehole wall, second nut spare (2) bottom surface and the contact of third nut spare (4) top surface, third nut spare (4) bottom surface and antiskid circle (5) top surface fixed connection, threaded hole (7) have been seted up to first nut spare (1), second nut spare (2) and third nut spare (4) intermediate position respectively, threaded hole (7) are three and are located first nut spare (1) respectively, Inside second nut spare (2) and third nut spare (4), three screw hole (7) are from last to end in proper order down, and three half circular slot (8) have been seted up along the axis direction to the inner wall of screw hole (7), half circular slot (8) extend to third nut spare (4) screw hole (7) inner wall bottom from first nut spare (1) screw hole (7) inner wall top, are three be provided with rubber circle (6) between screw hole (7), rubber circle (6) are two and set up from top to bottom, top rubber circle (6) are located between first nut spare (1) bottom surface and second nut spare (2) top surface, below rubber circle (6) are located between second nut spare (2) bottom surface and third nut spare (4) top surface, narrow outer width in tightening ring (9), tightening ring (9) cover is established in the first nut spare (1) outside, the inner ring of the tightening ring (9) is clamped between the bottom surface of the clamping ring (3) and the top surface of the third nut piece (4).

2. The high locking force nut for a melt crystallizer of claim 1, wherein: the upper end and the lower end of a threaded hole (7) of the first nut piece (1), a threaded hole (7) of the second nut piece (2) and a threaded hole (7) of the third nut piece (4) are provided with an upper chamfer and a lower chamfer, and the rubber rings (6) are located inside the upper chamfer and the lower chamfer which are adjacent.

3. The high locking force nut for a melt crystallizer of claim 1, wherein: and a layer of metallic tin is plated on the inner walls of the threaded hole (7) of the first nut piece (1), the threaded hole (7) of the second nut piece (2) and the threaded hole (7) of the third nut piece (4).

4. The high locking force nut for a melt crystallizer of claim 1, wherein: the anti-skidding ring (5) is made of rubber, and the bottom surface of the anti-skidding ring (5) is provided with an anti-skidding surface which is in the same direction as the internal threads of the three threaded holes (7).

5. The high locking force nut for a melt crystallizer of claim 1, wherein: the tightening ring (9) is composed of a circle of rubber rings which are not connected end to end, fixed blocks (10) are arranged at two ends of the tightening ring (9), and the two fixed blocks (10) are connected through small screws (11) in a threaded mode.