CN217328729U

CN217328729U - Duplex bearing valve worm gear case

Info

Publication number: CN217328729U
Application number: CN202220940727.8U
Authority: CN
Inventors: 黄正通; 郑中华; 金欣欣; 唐翔翔
Original assignee: Zhejiang Xunjie Transmission Technology Co ltd
Current assignee: Zhejiang Xunjie Transmission Technology Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-08-30
Anticipated expiration: 2032-04-21

Abstract

The utility model belongs to the field of turbine cases, in particular to a double-bearing valve worm-gear case, which aims at the problem that the prior art adopts a plurality of scattered deep groove ball bearings to fix a worm, and the deep groove ball bearings are always influenced by larger transmission force when the worm rotates, so that the service life of the worm is shorter, and the worm is provided with a scheme that comprises a shell, a first end cover and a second end cover are respectively and fixedly connected with the two sides of the shell, and the worm is movably connected between the first end cover and the second end cover, the worm is simultaneously reinforced by two conical roller bearings close to the two deep groove ball bearings, the bearing capacity of the deep groove ball bearings is improved, the service life of the product is further improved, scrap iron generated when the product is used can be adsorbed by a magnetic block, then the magnetic block is conveniently taken out and cleaned through a threaded rod, and the scrap iron is prevented from being remained in the shell, the rotation angle of the worm wheel can be limited, and the use flexibility of the product is improved.

Description

Duplex bearing valve worm gear case

Technical Field

The utility model relates to a turbine case technical field especially relates to a duplex bearing valve worm-gear case.

Background

The worm gear box is also called as a worm gear reduction box and is called as a worm gear reduction box or a worm gear reduction box and a worm gear reduction box, mainly comprises a worm gear or a first gear, a shaft, a bearing, a case and the like, and the worm gear or the first gear, the shaft and the bearing are supported by the case.

When the worm is fixed by the traditional turbine box, the worm is usually fixed by a plurality of scattered deep groove ball bearings, and the deep groove ball bearings are always influenced by large transmission force when the worm rotates, so that the service life of the worm is short; a double-bearing valve worm gear case is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving and having a plurality of deep groove ball bearings that adopt the dispersion among the prior art and fixing the worm, and deep groove ball bearing can receive great transmission power always when the worm rotates, makes the shorter shortcoming of its life, and the duplex bearing valve worm gear case that proposes.

In order to realize the purpose, the utility model adopts the following technical scheme:

a double-bearing valve worm gear box comprises a shell, wherein a first end cover and a second end cover are fixedly connected to two sides of the shell respectively, a worm is movably connected between the first end cover and the second end cover, two conical roller bearings and a plurality of deep groove ball bearings are fixedly sleeved on the outer circumferential wall of the worm, the two conical roller bearings are respectively positioned on one sides of the two deep groove ball bearings, the outer circumferential walls of the two conical roller bearings and the plurality of deep groove ball bearings are fixedly connected with the inner wall of the shell, a penetrating installation shaft is movably connected between the two sides of the shell, a worm gear is fixedly connected to the outer circumferential wall of the installation shaft and meshed with the worm, a first gear is fixedly connected to the outer circumferential wall of the worm, a driving shaft penetrates through one side of the second end cover in a rotating mode, a second gear is fixedly connected to the outer circumferential wall of the driving shaft and meshed with the first gear, the other end of the driving shaft is rotatably connected with the inner wall of one side of the shell, the bottom of the shell is provided with a mounting hole, and a slag removing mechanism is arranged in the mounting hole.

As the utility model discloses further scheme again, scarfing cinder mechanism includes solid fixed cylinder, a plurality of through-hole and spacing ring, and solid fixed cylinder welds in the mounting hole, gu fixed cylinder's bottom inner wall threaded connection has the threaded rod, the first sealing washer of top fixedly connected with of threaded rod, the top fixedly connected with of first sealing washer has the magnetic block, gu fixed cylinder's circumference inner wall swing joint has the second sealing washer, and the second sealing washer is located the top of magnetic block, spacing ring fixed connection is at solid fixed cylinder's circumference inner wall, and is a plurality of the circumference at solid fixed cylinder is all seted up to the through-hole, two extension springs of last fixed surface of spacing ring, and the top of two extension springs all is fixed mutually with the second sealing washer.

As the utility model discloses scheme further again, the circumference outer wall cover of threaded rod is equipped with the sealing ring, and the sealing ring is located between threaded rod and the solid fixed cylinder.

As the utility model discloses scheme further again, two screw holes that run through are seted up to the bottom of casing, and threaded hole is downthehole equal threaded connection has the pilot pin.

As a further proposal, the one end fixedly connected with pointer of installation axle.

As the utility model discloses scheme further again, the one end fixedly connected with hand wheel of drive shaft, the circumference outer wall fixedly connected with antiskid gasket of hand wheel.

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

1. through the setting of installing two tapered roller bearings and a plurality of deep groove ball bearing on the worm, consolidate the worm simultaneously through two tapered roller bearings that are close to two deep groove ball bearing, improve deep groove ball bearing's bearing capacity, and then improve the life of product.

2. Through the setting of the bottom installation scarfing cinder mechanism at the casing for the iron fillings that the product produced when using can be adsorbed by the magnetic block, then conveniently take out the clearance with the magnetic block through the threaded rod, avoid iron fillings to remain in the casing, further improve the life of product.

3. Through the setting of installing two gim peg in the casing bottom for can restrict the turned angle of worm wheel through two gim pegs, avoid worm wheel and worm to break away from, can restrict the turned angle of worm wheel simultaneously, improve the flexibility that the product used.

The utility model discloses in, consolidate the worm simultaneously through two tapered roller bearings that are close to two deep groove ball bearing, improve deep groove ball bearing's bearing capacity, and then improve the life of product, the iron fillings that the product produced when using simultaneously can be adsorbed by the magnetic block, then conveniently take out the clearance with the magnetic block through the threaded rod, avoid iron fillings to remain in the casing, can also restrict the turned angle of worm wheel, improve the flexibility that the product used.

Drawings

Fig. 1 is a schematic cross-sectional structural view of a double-bearing valve worm gear case provided in the present invention;

fig. 2 is an enlarged schematic structural diagram of a point a of a double-bearing valve worm gear case provided by the present invention;

fig. 3 is a schematic view of a dual-bearing valve worm gear case according to the present invention.

In the figure: 1. a housing; 2. installing a shaft; 3. a worm gear; 4. positioning bolts; 5. a first end cap; 501. a second end cap; 6. a tapered roller bearing; 7. a deep groove ball bearing; 8. a worm; 9. a first gear; 10. a drive shaft; 11. a hand wheel; 12. a through hole; 13. a tension spring; 14. a limiting ring; 15. a first seal ring; 16. a seal ring; 17. a threaded rod; 18. a magnetic block; 19. a second seal ring; 20. a fixed cylinder; 21. a pointer.

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.

Example one

Referring to fig. 1-3, a double-bearing valve worm gear case comprises a housing 1, a first end cover 5 and a second end cover 501 are respectively fixed on two sides of the housing 1 through bolts, a worm 8 is rotatably connected between the first end cover 5 and the second end cover 501, two tapered roller bearings 6 and a plurality of deep groove ball bearings 7 are fixedly sleeved on the circumferential outer wall of the worm 8, the two tapered roller bearings 6 are respectively located on one side of the two deep groove ball bearings 7, the outer ring outer walls of the two tapered roller bearings 6 and the outer ring outer walls of the plurality of deep groove ball bearings 7 are fixedly connected with the inner wall of the housing 1, a penetrating mounting shaft 2 is rotatably connected between the two sides of the housing 1, a worm wheel 3 is fixedly connected on the circumferential outer wall of the mounting shaft 2, the worm wheel 3 is meshed with the worm 8, a first gear 9 is fixed on the circumferential outer wall of the worm 8 through bolts, a driving shaft 10 is rotatably penetrated on one side of the second end cover 501, the one end fixedly connected with hand wheel 11 of drive shaft 10, the circumference outer wall of hand wheel 11 bonds and has the antiskid packing ring, conveniently rotates drive shaft 10 through hand wheel 11, and the circumference outer wall fixedly connected with second gear of drive shaft 10, and first gear 9 and second gear meshing, the other end of drive shaft 10 and one side inner wall of casing 1 rotate and be connected, and the mounting hole has been seted up to the bottom of casing 1, is equipped with the scarfing cinder mechanism in the mounting hole.

Example two

Referring to fig. 1 to 3, the present invention provides a new technical solution: a double-bearing valve worm gear box comprises a shell 1, a first end cover 5 and a second end cover 501 are respectively fixed on two sides of the shell 1 through bolts, a worm 8 is rotatably connected between the first end cover 5 and the second end cover 501, two tapered roller bearings 6 and a plurality of deep groove ball bearings 7 are fixedly sleeved on the outer circumferential wall of the worm 8, the two tapered roller bearings 6 are respectively positioned on one side of the two deep groove ball bearings 7, the worm 8 shares the force borne by the deep groove ball bearings 7 through the tapered roller bearings 6 when rotating, so that the service life of the deep groove ball bearings 7 is prolonged, the service life of a product is prolonged, the outer ring outer walls of the two tapered roller bearings 6 and the outer ring outer wall of the deep groove ball bearings 7 are fixedly connected with the inner wall of the shell 1, a penetrating installation shaft 2 is rotatably connected between the two sides of the shell 1, and a pointer 21 is fixed on one end of the installation shaft 2 through bolts, the pointer 21 is convenient for people to observe the rotation angle of the installation shaft 2, the circumferential outer wall of the installation shaft 2 is fixedly connected with the worm wheel 3, the worm wheel 3 is meshed with the worm 8, the bottom of the shell 1 is provided with two penetrating threaded holes, the threaded holes are all in threaded connection with the positioning bolts 4, the positions of the positioning bolts 4 can be adjusted by rotating the positioning bolts 4, so that the rotation angle of the worm wheel 3 is limited, the circumferential outer wall of the worm 8 is fixedly provided with the first gear 9 through bolts, one side of the second end cover 501 is rotatably provided with the driving shaft 10 through, the circumferential outer wall of the driving shaft 10 is fixedly connected with the second gear, the first gear 9 is meshed with the second gear, the other end of the driving shaft 10 is rotatably connected with the inner wall of one side of the shell 1, the driving shaft 10 is rotated through the hand wheel 11, the driving shaft 10 drives the second gear to rotate, the second gear drives the first gear 9 to rotate, so that the worm 8 rotates, the worm 8 meshes with worm wheel 3 to drive installation axle 2 through worm wheel 3 and rotate, the mounting hole has been seted up to the bottom of casing 1, is equipped with slag cleaning mechanism in the mounting hole.

It should be noted that the slag removing mechanism comprises a fixed cylinder 20, a plurality of through holes 12 and a limiting ring 14, the fixed cylinder 20 is welded in the installation hole, a threaded rod 17 is connected to the inner wall of the bottom of the fixed cylinder 20 through a thread, a first sealing ring 15 is fixedly connected to the top of the threaded rod 17, the first sealing ring 15 contacts with the bottom of the limiting ring 14 so as to seal the fixed cylinder 20, a magnetic block 18 is fixedly connected to the top of the first sealing ring 15, a second sealing ring 19 is slidably connected to the inner wall of the circumference of the fixed cylinder 20, the second sealing ring 19 is located above the magnetic block 18, the limiting ring 14 is fixedly connected to the inner wall of the circumference of the fixed cylinder 20, the plurality of through holes 12 are all arranged on the circumference of the fixed cylinder 20, iron filings generated by abrasion can be adsorbed by the magnetic block 18 when falling to one side of the through hole 12, two tension springs 13 are fixedly connected to the upper surface of the limiting ring 14, and the tops of the two tension springs 13 are all fixed with the second sealing ring 19, the second sealing ring 19 falls and contacts with the limiting ring 14, so that the fixed cylinder 20 is sealed, the leakage of lubricating oil in the fixed cylinder is avoided, the sealing ring 16 is sleeved on the outer wall of the circumference of the threaded rod 17, the sealing ring 16 is located between the threaded rod 17 and the fixed cylinder 20, and the sealing ring 16 increases the sealing performance of the threaded rod 17.

The working principle is as follows: when the device is used, the driving shaft 10 is rotated through the hand wheel 11, the driving shaft 10 drives the second gear to rotate, the second gear drives the first gear 9 to rotate, so that the worm 8 rotates, the worm 8 is meshed with the worm wheel 3, the mounting shaft 2 is driven to rotate through the worm wheel 3, the worm 8 rotates, and simultaneously, the force borne by the deep groove ball bearing 7 is shared through the tapered roller bearing 6, so that the service life of the deep groove ball bearing 7 is prolonged, the service life of a product is prolonged, when the product is used for a long time, scrap iron generated by abrasion falls on one side of the through hole 12 and is adsorbed by the magnetic block 18, during cleaning, the threaded rod 17 is rotated, the magnetic block 18 is taken down by the threaded rod 17, the scrap iron is conveniently cleaned by a worker, meanwhile, the tension spring 13 pulls the second sealing ring 19 downwards, then the second sealing ring 19 is contacted with the limiting ring 14, so that the fixing cylinder 20 is sealed, and lubricating oil in the fixing cylinder is prevented from leaking, when the pilot pin 4 is rotated, the pilot pin 4 moves in the threaded hole, thereby limiting the rotation angle of the worm wheel 3.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A double-bearing valve worm gear box comprises a shell (1) and is characterized in that two sides of the shell (1) are fixedly connected with a first end cover (5) and a second end cover (501) respectively, a worm (8) is movably connected between the first end cover (5) and the second end cover (501), two tapered roller bearings (6) and a plurality of deep groove ball bearings (7) are fixedly sleeved on the outer circumferential wall of the worm (8), the two tapered roller bearings (6) are respectively located on one side of the two deep groove ball bearings (7), the outer circumferential walls of the two tapered roller bearings (6) and the plurality of deep groove ball bearings (7) are fixedly connected with the inner wall of the shell (1), a penetrating installation shaft (2) is movably connected between the two sides of the shell (1), a worm gear (3) is fixedly connected on the outer circumferential wall of the installation shaft (2), and the worm gear (3) is meshed with the worm (8), the circumference outer wall fixedly connected with first gear (9) of worm (8), one side of second end cover (501) is rotated and is run through drive shaft (10), and the circumference outer wall fixedly connected with second gear of drive shaft (10), and first gear (9) and second gear engagement, the other end of drive shaft (10) is rotated with one side inner wall of casing (1) and is connected, the mounting hole has been seted up to the bottom of casing (1), is equipped with the scarfing cinder mechanism in the mounting hole.

2. The double-bearing valve worm-gear case as claimed in claim 1, wherein the slag removing mechanism comprises a fixed cylinder (20), a plurality of through holes (12) and a limiting ring (14), the fixed cylinder (20) is welded in the mounting hole, the bottom inner wall of the fixed cylinder (20) is in threaded connection with a threaded rod (17), the top of the threaded rod (17) is fixedly connected with a first sealing ring (15), the top of the first sealing ring (15) is fixedly connected with a magnetic block (18), the circumferential inner wall of the fixed cylinder (20) is movably connected with a second sealing ring (19), the second sealing ring (19) is positioned above the magnetic block (18), the limiting ring (14) is fixedly connected with the circumferential inner wall of the fixed cylinder (20), the plurality of through holes (12) are all arranged on the circumference of the fixed cylinder (20), the upper surface of the limiting ring (14) is fixedly connected with two tension springs (13), and the tops of the two tension springs (13) are fixed with the second sealing ring (19).

3. A double-bearing valve worm-gear case according to claim 2, characterized in that the circumferential outer wall of the threaded rod (17) is sleeved with a sealing ring (16), and the sealing ring (16) is located between the threaded rod (17) and the fixed cylinder (20).

4. The double-bearing valve worm-gear case as claimed in claim 1, characterized in that the bottom of the housing (1) is provided with two threaded holes therethrough, and the threaded holes are both in threaded connection with the positioning bolts (4).

5. A double bearing valve worm-gear case according to claim 1, characterised in that a pointer (21) is fixedly connected to one end of the mounting shaft (2).

6. A double bearing valve worm-gear case according to claim 1, characterised in that a hand wheel (11) is fixedly connected to one end of the drive shaft (10), and an anti-slip washer is fixedly connected to the circumferential outer wall of the hand wheel (11).