CN209977178U

CN209977178U - Split nut

Info

Publication number: CN209977178U
Application number: CN201920642511.1U
Authority: CN
Inventors: 吕飞渠
Original assignee: Jinjiang Ganga Machinery Co Ltd
Current assignee: Jinjiang Ganga Machinery Co Ltd
Priority date: 2019-05-07
Filing date: 2019-05-07
Publication date: 2020-01-21
Anticipated expiration: 2029-05-07

Abstract

The utility model discloses a split type nut, including components of a whole that can function independently nut body, first end cover and second end cover, the components of a whole that can function independently nut body includes half first nut cover and half nut cover of second, the surface homogeneous phase integrated into one piece of half nut cover of first and half nut cover of second has the lug. This split type nut, through the first fixed block, first connecting hole, the second fixed block, the cooperation of locking screw and thread bush is used, thereby can be fast with half first nut cover and half second nut registrate and fix and form the components of a whole that can function independently nut body together, also can make the components of a whole that can function independently nut body part separately fast, and use through the cooperation of half first nut cover, half second nut cover, the external screw thread, the movable screw, lead screw and fixed screw, the fit clearance between rotatory movable screw can be adjusted to the rotatory movable screw and the lead screw, to sum up, the simple and convenient of components of a whole that can function independently nut body is installed and removed, the end of holding back of traditional design in adjustment radial clearance and axial distance or the difficult of change accessory has been dissolved.

Description

Split nut

Technical Field

The utility model relates to a nut specifically is a split type nut.

Background

With the development of society, the variety of mechanical equipment is increasing. Mechanical devices are of a wide variety, and some of their components, even themselves, may undergo different forms of mechanical movement when the mechanical device is in operation. The mechanical equipment consists of a driving device, a speed changing device, a transmission device, a working device, a braking device, a protection device, a lubricating system, a cooling system and the like.

In a screw rod transmission part of mechanical equipment, the failure rate is high after the matching part of a screw rod and a nut runs for a period of time, and particularly, the failure occurs at the part with complex structure, overlapped assembly of accessories, dense intervals and integrated connection, such as increased abrasion clearance, nut breakage, nut displacement and product precision influence, and the like. It is difficult to adjust the radial clearance and the axial distance or replace the fittings during maintenance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a split type nut to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a split type nut, includes components of a whole that can function independently nut body, first end cover and second end cover, the components of a whole that can function independently nut body includes half first nut cover and half nut cover of second, the surface homogeneous integrated into one piece of half first nut cover and half nut cover of second has the lug, the surface of components of a whole that can function independently nut body and the both sides that are located the lug all are provided with tapered roller bearing, the top of tapered roller bearing surface is provided with first fixed block, the bottom of tapered roller bearing surface is provided with the second fixed block.

The utility model discloses a split nut, including split nut body, movable screw and fixed screw, the inside of split nut body is threaded connection respectively rather than the looks adaptation, and one side of movable screw extends to the split nut body external, threaded connection has the lead screw rather than the looks adaptation between movable screw and the fixed screw, the surface of first fixed block runs through and has seted up four first connecting holes, the surface of second fixed block just is located and runs through and has seted up four second connecting holes under the first connecting hole, the inside fixed mounting of second connecting hole has the thread bush, the inside of first connecting hole is provided with locking screw, and locking screw's bottom passes through the thread bush and extends to the inside of second connecting hole.

As a further aspect of the present invention: four limiting grooves are formed in the bottom of the first half nut sleeve, four limiting blocks are fixedly mounted at the top of the second half nut sleeve and under the limiting grooves, the tops of the limiting blocks extend to the inner parts of the limiting grooves, the limiting blocks and the limiting grooves are circular, and the limiting blocks are matched with the limiting grooves.

As a further aspect of the present invention: the outer surface of the movable nut is provided with an external thread, the movable nut is in threaded connection with the split nut body through the external thread, and the movable nut and the fixed nut are consistent in structure.

As a further aspect of the present invention: the locking screw is in threaded connection with the threaded sleeve and is matched with the threaded sleeve.

As a further aspect of the present invention: four clamping grooves are formed in the outer surface of the first end cover, the middle of one side of the first end cover is penetrated through and provided with an opening, and the first end cover and the second end cover are identical in structure size.

As a further aspect of the present invention: the opposite face of first end cover and second end cover all extends to the inside of first fixed block and second fixed block, first fixed block and second fixed block all through fixture block and the draw-in groove joint of its inner wall installation.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model can quickly combine and fix the first half nut sleeve and the second half nut together to form a split nut body through the matching use of the first fixing block, the first connecting hole, the second fixing block, the locking screw and the thread sleeve, and can also quickly separate the split nut body, and the matching clearance between the movable nut and the screw rod can be adjusted by rotating the movable nut through the matching use of the first half nut sleeve, the second half nut sleeve, the external thread, the movable nut, the screw rod and the fixed nut, therefore, the simple assembly and disassembly of the split nut body can solve the problem that the traditional design is difficult to adjust the radial clearance and the axial distance or replace the fittings, thereby facilitating the adjustment and the maintenance of the split nut body, ensuring the continuous operation of the equipment, having good use effect, and being convenient for the first half nut sleeve and the second half nut sleeve to align through the matching use of the limiting block and the limiting groove, the improved nut sleeve structure has the advantages that the improved nut sleeve structure is convenient to install, the accuracy of fixation between the first half nut sleeve and the second half nut sleeve is improved, the first end cover, the second end cover, the clamping groove and the clamping block are matched for use, the sealing performance of the first fixing block and the second fixing block is improved, external pollutants can be prevented from entering the first fixing block and the second fixing block, and the stability of operation of the improved nut sleeve structure is improved.

Drawings

Fig. 1 is a schematic structural diagram of a split nut.

Fig. 2 is a schematic view of the split structure of the first half nut sleeve and the second half nut sleeve in the split nut.

Fig. 3 is a bottom view of the first nut half sleeve of the split nut.

Fig. 4 is a side view of a first end cap in the split nut.

In the figure: the nut comprises a first half nut sleeve 1, a second half nut sleeve 2, an external thread 3, a movable nut 4, a first end cover 5, a first fixing block 6, a first connecting hole 7, a second end cover 8, a second connecting hole 9, a second fixing block 10, a locking screw 11, a threaded sleeve 12, a screw rod 13, a fixing nut 14, a limiting block 15, a convex block 16, a tapered roller bearing 17, a limiting groove 18, a through hole 19, a clamping groove 20 and a split nut body 21.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, in an embodiment of the present invention, a split nut includes a split nut body 21, a first end cap 5 and a second end cap 8, the split nut body 21 includes a first half nut sleeve 1 and a second half nut sleeve 2, a bump 16 is integrally formed on the outer surface of the first half nut sleeve 1 and the outer surface of the second half nut sleeve 2, tapered roller bearings 17 are disposed on the outer surface of the split nut body 21 and on both sides of the bump 16, a first fixing block 6 is disposed on the top of the outer surface of the tapered roller bearings 17, and a second fixing block 10 is disposed on the bottom of the outer surface of the tapered roller bearings 17.

The inside of the split nut body 21 is respectively in threaded connection with a movable nut 4 and a fixed nut 14 which are matched with the split nut body, one side of the movable nut 4 extends out of the split nut body 21, the fixed nut 14 is connected and stopped by using a flat key, one side of the movable nut 4, which is positioned outside the split nut body 21, is provided with a stopping ring and an adjusting compression nut, a screw rod 13 which is matched with the movable nut 4 and the fixed nut 14 is in threaded connection between the movable nut 4 and the fixed nut 14, the outer surface of a first fixed block 6 is provided with four first connecting holes 7 in a penetrating way, the outer surface of a second fixed block 10 is provided with four second connecting holes 9 in a penetrating way and positioned under the first connecting holes 7, a threaded sleeve 12 is fixedly arranged inside the second connecting holes 9, a locking screw 11 is arranged inside the first connecting holes 7, and the bottom of the locking screw 11 extends into the second connecting holes 9 through the threaded sleeve, the bottom of the first half nut sleeve 1 is provided with four limiting grooves 18, the top of the second half nut sleeve 2 is fixedly provided with four limiting blocks 15 which are positioned under the limiting grooves 18, the top of each limiting block 15 extends to the inside of each limiting groove 18, each limiting block 15 and each limiting groove 18 are circular, each limiting block 15 is matched with each limiting groove 18, the outer surface of each movable nut 4 is provided with an external thread 3, each movable nut 4 is in threaded connection with a split nut body 21 through the external thread 3, each movable nut 4 is consistent with each fixed nut 14 in structure, each locking screw 11 is in threaded connection with each threaded sleeve 12, each locking screw 11 is matched with each threaded sleeve 12, the outer surface of each first end cover 5 is provided with four clamping grooves 20, the middle of one side of each first end cover 5 is provided with a through hole 19 in a penetrating manner, the first end cover 5 is consistent with the second end cover 8 in structure size, the opposite surfaces of the first end cover 5 and the second end cover 8 extend to the inside of each first fixing block 6 and, the first fixing block 6 and the second fixing block 10 are clamped with the clamping groove 20 through clamping blocks arranged on the inner walls of the first fixing block and the second fixing block.

The utility model discloses a theory of operation is:

when in use, the limiting blocks 15 are aligned with the limiting grooves 18 one by one, and the limiting blocks 15 enter the limiting grooves 18, so that the first half nut sleeve 1 and the second half nut sleeve 2 are conveniently aligned, the convenience in installation is facilitated, the fixing precision between the first half nut sleeve 1 and the second half nut sleeve 2 is improved, the locking screws 11 are screwed into the screw sleeve 12 from the first connecting holes 7, and the first half nut sleeve 1 and the second half nut sleeve 2 can be quickly combined and fixed together to form the split nut body 21, otherwise, the split nut body 21 can be quickly separated, and the fit clearance between the movable nut 4 and the screw rod 13 can be adjusted by rotating the movable nut 4, so that in conclusion, the simplicity and convenience of the split nut body 21 are realized, the blocked end of the traditional design which is difficult to adjust the radial clearance and the axial distance or replace accessories is solved, and the adjustment and maintenance are convenient, guarantee the operation of equipment continuation nature, excellent in use effect, first end cover 5 all extends to the inside of first fixed block 6 and second fixed block 10 with the opposite face of second end cover 8, and draw-in groove 20 and fixture block joint help increasing the leakproofness of first fixed block 6 and second fixed block 10, can prevent that external pollutant from getting into the inside of first fixed block 6 and second fixed block 10, help the stability of hoisting device operation.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A split nut comprises a split nut body (21), a first end cover (5) and a second end cover (8), and is characterized in that the split nut body (21) comprises a first half nut sleeve (1) and a second half nut sleeve (2), the outer surfaces of the first half nut sleeve (1) and the second half nut sleeve (2) are respectively and integrally formed with a convex block (16), tapered roller bearings (17) are respectively arranged on the outer surface of the split nut body (21) and two sides of the convex block (16), a first fixed block (6) is arranged at the top of the outer surface of each tapered roller bearing (17), and a second fixed block (10) is arranged at the bottom of the outer surface of each tapered roller bearing (17);

the interior of the split nut body (21) is respectively in threaded connection with a movable nut (4) and a fixed nut (14) which are matched with the split nut body, one side of the movable screw nut (4) extends out of the split nut body (21), a screw rod (13) matched with the movable screw nut (4) and the fixed screw nut (14) is connected between the movable screw nut (4) and the fixed screw nut in a threaded manner, four first connecting holes (7) are arranged on the outer surface of the first fixing block (6) in a penetrating way, four second connecting holes (9) are arranged on the outer surface of the second fixing block (10) and are positioned under the first connecting holes (7) in a penetrating way, a thread sleeve (12) is fixedly arranged inside the second connecting hole (9), a locking screw (11) is arranged in the first connecting hole (7), and the bottom of the locking screw (11) passes through the threaded sleeve (12) and extends to the inside of the second connecting hole (9).

2. The split nut according to claim 1, wherein four limiting grooves (18) are formed in the bottom of the first half nut sleeve (1), four limiting blocks (15) are fixedly mounted at the top of the second half nut sleeve (2) and right below the limiting grooves (18), the tops of the limiting blocks (15) extend into the limiting grooves (18), the limiting blocks (15) and the limiting grooves (18) are both circular, and the limiting blocks (15) are matched with the limiting grooves (18).

3. The split nut according to claim 1, wherein the outer surface of the movable nut (4) is provided with an external thread (3), the movable nut (4) is in threaded connection with the split nut body (21) through the external thread (3), and the movable nut (4) and the fixed nut (14) are consistent in structure.

4. The split nut according to claim 1, characterized in that the locking screw (11) is screwed with the threaded sleeve (12), and the locking screw (11) is adapted to the threaded sleeve (12).

5. The split nut according to claim 1, wherein the outer surface of the first end cap (5) is provided with four clamping grooves (20), a through hole (19) is formed through the middle of one side of the first end cap (5), and the first end cap (5) and the second end cap (8) are identical in structural size.

6. The split nut according to claim 1 or 5, wherein the opposite surfaces of the first end cap (5) and the second end cap (8) extend to the insides of the first fixing block (6) and the second fixing block (10), and the first fixing block (6) and the second fixing block (10) are clamped with the clamping groove (20) through clamping blocks mounted on the inner walls of the first fixing block and the second fixing block.