CN209856341U

CN209856341U - Worm shaft

Info

Publication number: CN209856341U
Application number: CN201920407790.3U
Authority: CN
Inventors: 钟文锋
Original assignee: Ruian Yali Beijing Great Automotive Components Co Ltd
Current assignee: Ruian Yali Beijing Great Automotive Components Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2019-12-27
Anticipated expiration: 2029-03-28

Abstract

The utility model discloses a worm axle, including double-screw bolt, first part, screwed pipe and worm axle main part, the top of worm axle main part is provided with the first part, and the top of first part is provided with the double-screw bolt, and the top of double-screw bolt is provided with the draw-in groove simultaneously, the bottom of worm axle main part is provided with the second part, and the bottom of second part is provided with the slot, the bottom mounting of slot has the supporting pin, and the surface of second part bottom is provided with accepts the groove simultaneously, the fixed surface of worm axle main part has the screwed pipe, and the surface of screwed pipe is provided with the spiral line, the top of screwed pipe is provided with the through-hole, and the inside both ends of through-hole all are provided with the stopper, the surface of first part and worm axle main part all is provided with. The utility model discloses a be provided with the strengthening rib, and the strengthening rib has strengthened the bulk strength of worm axle main part, avoids worm axle main part to produce deformation under high temperature environment.

Description

Worm shaft

Technical Field

The utility model relates to a shaft machining technical field specifically is worm axle.

Background

The worm is a gear which is provided with one or more spiral teeth and is meshed with a worm wheel to form a staggered shaft gear pair, the indexing curved surface of the worm can be a cylindrical surface, a conical surface or a circular ring surface, and the worm has four categories of an Archimedes worm, an involute worm, a normal straight profile worm and a conical surface enveloping cylindrical worm, the worm transmission consists of the worm and the worm wheel and is used for transmitting the motion and the power between staggered shafts, the rotation is stable, the noise is low, but the existing worm shaft has many problems or defects:

firstly, the traditional worm shaft usually adopts an integrated structure, the processing process is complex, the installation is inconvenient, the whole worm shaft needs to be replaced when the spiral thread is cracked or deformed, the maintenance cost is too high, meanwhile, the anti-skid thread is usually additionally arranged on the surface of the worm for fixing in order to facilitate the assembly and replacement between the worm and the spiral tube, but the anti-skid thread is easy to corrode after a long time, so that the connection between the worm and the spiral tube is loosened;

secondly, the conventional worm shaft is usually used in a single body form, and can not be assembled in a butt joint manner, when the length of the worm shaft is insufficient, a longer worm shaft needs to be found, and the assembly process is extremely complicated;

thirdly, the traditional worm shaft is not light enough, and during the rotation of the worm shaft, high-speed friction between the worm shaft and the turbine generates high temperature, so that the worm shaft is easy to deform under a long-time high-temperature environment, and the rotation mechanism is abnormal.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a worm axle to solve the maintenance cost who proposes among the above-mentioned background art too high, can not dock the problem that equipment and worm axle produced deformation easily under long-time high temperature environment.

In order to achieve the above object, the utility model provides a following technical scheme: the worm shaft comprises a stud, a first part, a screw pipe and a worm shaft main body, wherein the first part is arranged on the top end of the worm shaft main body, the stud is arranged on the top end of the first part, a clamping groove is formed in the top end of the stud, a second part is arranged at the bottom end of the worm shaft main body, a slot is formed in the bottom end of the second part, supporting pins are fixed at the bottom end of the slot, an accepting groove is formed in the surface of the bottom end of the second part, the screw pipe is fixed on the surface of the worm shaft main body, spiral threads are formed in the surface of the screw pipe, a through hole is formed in the top end of the screw pipe, limiting blocks are arranged at the two ends of the through hole, and anti-slip threads are arranged on the surfaces of.

Preferably, the top of one side of the first component is provided with a jack, an insert block is arranged inside the jack, and an insertion structure is formed between the insert block and the jack.

Preferably, the worm shaft body is uniformly provided with reinforcing ribs inside, and the reinforcing ribs are circumferentially distributed about the midpoint of the worm shaft body.

Preferably, the two ends of the worm shaft main body are provided with limiting grooves matched with the limiting blocks, and the limiting grooves and the limiting blocks are in a clamping structure.

Preferably, the second component and the supporting pin are in a detachable installation structure.

Preferably, the surface of the top end of the support pin is provided with an external thread, and the inner side wall of the slot is provided with an internal thread matched with the external thread.

Compared with the prior art, the beneficial effects of the utility model are that: the worm shaft has a reasonable structure and has the following advantages:

1. through being provided with spacing groove, anti-skidding line and stopper, the spacing groove provides great frictional force for between screwed pipe and the worm axle main part, and spacing groove and the mutual block of stopper can play spacing effect, damages the back when the spiral line on screwed pipe surface, can directly pull down the screwed pipe from worm axle main part and change, and operation process is not only simple but also swift.

2. By arranging the support pin and the slot, and adopting a dismounting and mounting structure between the support pin and the slot, when the rotating length is insufficient, the support pin can be used for increasing the overall length of the worm shaft main body.

3. Through being provided with the strengthening rib, and the strengthening rib has strengthened the bulk strength of worm axle main part, avoids worm axle main part to produce deformation under high temperature environment.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is a schematic front view of the structure of the present invention;

FIG. 3 is a schematic view of the front cross-sectional structure of the screw tube of the present invention;

fig. 4 is a schematic view of the screw tube according to the present invention.

In the figure: 1. a stud; 2. a jack; 3. a first member; 4. a solenoid; 5. a worm shaft main body; 6. a second component; 7. a support pin; 8. a slot; 9. reinforcing ribs; 10. inserting a block; 11. a card slot; 12. a limiting groove; 13. a receiving groove; 14. anti-skid lines; 15. helical thread; 16. a limiting block; 17. and a through hole.

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. 1-4, the present invention provides an embodiment: the worm shaft comprises a stud 1, a first component 3, a screw pipe 4 and a worm shaft main body 5, wherein the top end of the worm shaft main body 5 is provided with the first component 3, the top end of the first component 3 is provided with the stud 1, the top end of one side of the first component 3 is provided with a jack 2, an insert block 10 is arranged in the jack 2, the insert block 10 and the jack 2 are in an inserting structure, the fixing is convenient, meanwhile, the top end of the stud 1 is provided with a clamping groove 11, the bottom end of the worm shaft main body 5 is provided with a second component 6, the bottom end of the second component 6 is provided with a slot 8, the bottom end of the slot 8 is fixed with a support pin 7, the surface of the bottom end of the second component 6 is provided with a bearing groove 13, the surface of the top end of the support pin 7 is provided with an external thread, the inner side wall of the slot 8 is provided with an internal thread matched with the external, set up like this and be convenient for change, the inside of worm axle main part 5 evenly is provided with strengthening rib 9, and strengthening rib 9 is the circumference about the mid point of worm axle main part 5 and distributes, the structural strength of worm axle main part 5 self has been improved in the setting like this, the fixed surface of worm axle main part 5 has screwed pipe 4, and the surface of screwed pipe 4 is provided with spiral line 15, the top of screwed pipe 4 is provided with through-hole 17, and the inside both ends of through-hole 17 all are provided with stopper 16, the both ends of worm axle main part 5 are provided with the spacing groove 12 of mutually supporting with stopper 16, and be block structure between spacing groove 12 and the stopper 16, the equipment of being convenient for sets up like this, first part 3 all is provided with anti-skidding line 14 with the surface of worm axle.

The working principle is as follows: when in use, firstly, the limiting block 16 in the screw tube 4 is aligned with the limiting groove 12 on the surface of the worm shaft main body 5 for installation, and proper force is applied to the worm shaft main body 5, so that the screw tube 4 is tightly fixed on the surface of the worm shaft main body 5, then the inserting block 10 is inserted into the inserting hole 2, then the screw bolt 1 and the clamping groove 11 are used for installing the worm shaft main body 5 on the rotating structure, and the spiral thread 15 on the surface of the screw tube 4 is meshed with the turbine wheel, when the length of the worm shaft main body 5 is insufficient, the supporting pin 7 can be installed in the slot 8 at the bottom end of the second part 6 for increasing the integral length of the worm shaft main body 5, and the supporting pin 7 is connected with the slot 8 in a threaded mechanism, so that the assembly is convenient, meanwhile, the limiting groove 12 and the anti-skid thread 14 are arranged on the surface of the worm shaft main body 5, so that the screw tube 4 is convenient to fix, in addition, the inside of worm axle main part 5 is provided with strengthening rib 9, has strengthened the holistic structural strength of worm axle main part 5, avoids worm axle main part 5 to produce deformation under high temperature environment, makes it can normally work, this utility model structure is simple, the processing production of being convenient for, and the maintenance cost is low.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The worm shaft comprises a stud (1), a first component (3), a solenoid (4) and a worm shaft main body (5), and is characterized in that: the top end of the worm shaft main body (5) is provided with a first part (3), the top end of the first part (3) is provided with a stud (1), meanwhile, the top end of the stud (1) is provided with a clamping groove (11), the bottom end of the worm shaft main body (5) is provided with a second part (6), and the bottom end of the second component (6) is provided with a slot (8), the bottom end of the slot (8) is fixed with a supporting pin (7), meanwhile, the surface of the bottom end of the second component (6) is provided with a bearing groove (13), the surface of the worm shaft main body (5) is fixed with a solenoid (4), the surface of the screw tube (4) is provided with a spiral thread (15), the top end of the screw tube (4) is provided with a through hole (17), and both ends in through-hole (17) all are provided with stopper (16), the surface of first part (3) and worm axle main part (5) all is provided with anti-skidding line (14).

2. The worm shaft according to claim 1, wherein: the top of first part (3) one side is provided with jack (2), and the internally mounted of jack (2) has inserted block (10), and is the grafting structure between inserted block (10) and jack (2).

3. The worm shaft according to claim 1, wherein: reinforcing ribs (9) are uniformly arranged in the worm shaft main body (5), and the reinforcing ribs (9) are circumferentially distributed about the midpoint of the worm shaft main body (5).

4. The worm shaft according to claim 1, wherein: limiting grooves (12) matched with the limiting blocks (16) are formed in the two ends of the worm shaft main body (5), and a clamping structure is formed between the limiting grooves (12) and the limiting blocks (16).

5. The worm shaft according to claim 1, wherein: the second component (6) and the supporting pin (7) are in a detachable and mounting structure.

6. The worm shaft according to claim 1, wherein: the surface of the top end of the supporting pin (7) is provided with an external thread, and the inner side wall of the slot (8) is provided with an internal thread matched with the external thread.