CN215110452U

CN215110452U - Durable gear reducer

Info

Publication number: CN215110452U
Application number: CN202121594754.6U
Authority: CN
Inventors: 周琦
Original assignee: Shengzhou Tianyu Motor Co ltd
Current assignee: Shengzhou Tianyu Motor Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-12-10
Anticipated expiration: 2031-07-12

Abstract

The utility model discloses a durable type gear reducer relates to the speed reducer, aims at solving the problem of the hand of making dirty easily when changing lubricating oil, and its technical scheme main points are: including the casing, be equipped with the oil bath in the casing, the extension pipe of fixedly connected with and oil bath intercommunication on the casing outer wall, extension pipe overcoat is equipped with the rotary drum, a plurality of connecting blocks that are the ring array and distribute of fixedly connected with on the rotary drum inner wall, the same double-screw bolt with the coaxial setting of rotary drum of one end fixedly connected with that the rotary drum inner wall was kept away from to a plurality of connecting blocks, be formed with the passageway that is used for the oil drain between the adjacent connecting block, the one end threaded connection of double-screw bolt and extension pipe is used for sealing the extension pipe. The utility model discloses a rotate the rotary drum, drive the double-screw bolt and rotate to turning out the double-screw bolt from the extension intraductal, lubricating oil in the oil bath flows from the extension pipe, then flows from the inner wall of rotary drum through the passageway, thereby isolated operating personnel's hand and lubricating oil make lubricating oil can not make operating personnel's hand dirty in the change process.

Description

Durable gear reducer

Technical Field

The utility model relates to a speed reducer, more specifically says, it relates to a durable type gear reducer.

Background

The reducer is an independent part consisting of gear transmission, worm transmission and gear-worm transmission enclosed in a rigid shell, and is commonly used as a speed reduction transmission device between a prime mover and a working machine. The function of matching the rotation speed and transmitting the torque between the prime mover and the working machine or the actuating mechanism is very extensive in modern machinery.

The speed reducer lubrication is the important link of speed reducer maintenance, lubrication often adopts the lubrication of splashing among the small-size gear reducer, the gear of dress in the casing soaks in the oil bath in the casing, gear revolve gets rid of oil and splashes to each lubricated position lubrication, the oil drain hole has been seted up on the casing, casing threaded connection has the oil drain bolt that seals the oil drain hole, lubricating oil has been used for a long time and has need be changed, during the change, unscrew the oil drain bolt, then with the hand turn-over oil drain bolt, when the oil drain bolt has not separated completely with the casing, lubricating oil will follow the oil drain hole and flow out, often can make dirty operating personnel's hand.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a durable type gear reducer prevents to make dirty hand when changing lubricating oil.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a durable type gear reducer, includes the casing, be equipped with the oil bath in the casing, fixedly connected with and the extension pipe of oil bath intercommunication on the casing outer wall, the extension pipe overcoat is equipped with the rotary drum, fixedly connected with is a plurality of connecting blocks that are the annular array and distribute on the rotary drum inner wall, a plurality of the same double-screw bolt with the coaxial setting of rotary drum of one end fixedly connected with that the rotary drum inner wall was kept away from to the connecting block, it is adjacent be formed with the passageway that is used for the oil drain between the connecting block, the double-screw bolt is used for sealing the extension pipe with the one end threaded connection of extension pipe.

Through adopting above-mentioned technical scheme, when changing lubricating oil, hold and hold the rotary drum and rotate, it rotates to drive the double-screw bolt through a plurality of connecting blocks, thereby it comes out to follow the extension intraductal commentaries on classics of double-screw bolt, lubricating oil in the oil bath flows from the extension pipe, then flow out from the inner wall of rotary drum through the passageway, thereby isolated operating personnel's hand and lubricating oil, put the back, it makes the double-screw bolt aim at the hole of extension pipe to remove the rotary drum, then rotate the rotary drum, it is used for sealing the extension pipe to drive the double-screw bolt rotation through a plurality of connecting blocks, the installation is accomplished, make lubricating oil can not make operating personnel's hand dirty in the change process.

The utility model discloses further set up to: the one end of rotary drum near the casing is formed with the spacing ring that sets up towards its axis department, offer the annular that is used for holding the spacing ring activity on the periphery wall of extension pipe.

Through adopting above-mentioned technical scheme, the spacing ring removes in the annular to play limiting displacement to the rotary drum, make things convenient for the rotary drum to keep with the connected state of casing, prevent that the rotary drum from losing.

The utility model discloses further set up to: the connecting block is provided with a supporting surface which is parallel to the end surface of the extension pipe, and when the stud is in threaded connection with the extension pipe, the supporting surface is abutted against the end surface of the extension pipe.

Through adopting above-mentioned technical scheme, when the rotary drum received rather than the inconsistent external force of axis direction, the connecting block passed through the terminal surface of holding surface extrusion extension pipe to provide holding power to the rotary drum, and then improve the ability that the rotary drum bore external force.

The utility model discloses further set up to: the one end that the casing was kept away from to the rotary drum can be dismantled and be connected with the drainage tube, the one end fixedly connected with sleeve of drainage tube, seted up on the periphery wall of rotary drum and be annular recess, be formed with the annular bead of embedding recess on the telescopic inner wall.

Through adopting above-mentioned technical scheme, cyclic annular bead is inconsistent with the inner wall of recess to fixed cyclic annular bead, and then fixed sleeve and drainage tube, through setting up the drainage tube, conveniently adjust the route that lubricating oil flows, conveniently retrieve lubricating oil.

The utility model discloses further set up to: the longitudinal section of the annular convex edge is semicircular, and the arc convex surface of the annular convex edge faces the axis of the sleeve.

Through adopting above-mentioned technical scheme, semicircular shape reduces the area of contact between annular bead and the rotary drum to reduce the frictional force between annular bead and the rotary drum when sleeve and rotary drum relative movement, and then make things convenient for telescopic installation and dismantlement.

The utility model discloses further set up to: one end of the stud close to the extension pipe is provided with a conical guide part, and the small end of the guide part faces the extension pipe.

Through adopting above-mentioned technical scheme, because the tip area of guide part is less to make things convenient for in the screw rod embedding extension tube, play the guide effect to the installation of screw rod.

The utility model discloses further set up to: and an arc part is formed at the joint of the connecting block and the inner wall of the rotary drum.

Through adopting above-mentioned technical scheme, the stress concentration between connecting block and the rotary drum inner wall can be reduced to the circular arc portion to improve the intensity of connecting block and rotary drum inner wall junction, and then improve the life of rotary drum.

The utility model discloses further set up to: the rotary drum is made of carbon steel.

Through adopting above-mentioned technical scheme, the carbon steel material has the characteristics that intensity is high to improve the intensity of rotary drum, and then improve the life of rotary drum.

To sum up, the utility model discloses following beneficial effect has: when changing lubricating oil, hold and hold the rotary drum and rotate, drive the double-screw bolt rotation through a plurality of connecting blocks, thereby it comes out to follow the extension intraductal commentaries on classics of double-screw bolt, lubricating oil in the oil bath flows from the extension pipe, then flow out from the inner wall of rotary drum through the passageway, thereby isolated operating personnel's hand and lubricating oil, put the back, remove the rotary drum and make the double-screw bolt aim at the hole of extension pipe, then rotate the rotary drum, it is used for sealing the extension pipe to drive the double-screw bolt rotation through a plurality of connecting blocks, the installation is accomplished, make lubricating oil can not make operating personnel's hand dirty in the change process.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2.

In the figure: 1. a housing; 2. an extension tube; 3. a rotating drum; 4. connecting blocks; 5. a stud; 6. a channel; 7. a limiting ring; 8. a ring groove; 9. a support surface; 10. a drainage tube; 11. a sleeve; 12. a groove; 13. an annular rib; 14. a guide portion; 15. a circular arc portion.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

A durable gear reducer is disclosed, as shown in figures 1, 2 and 3, and comprises a casing 1, an oil pool is arranged in the casing 1, a cylindrical extension pipe 2 communicated with the oil pool and in a cylindrical shape is welded on the outer wall of the casing 1, a cylindrical rotary drum 3 is sleeved outside the extension pipe 2, the rotary drum 3 is made of carbon steel, a limit ring 7 arranged towards the axis of the rotary drum 3 is formed at one end of the rotary drum 3 close to the casing 1, a ring groove 8 for accommodating the limit ring 7 is formed on the outer peripheral wall of the extension pipe 2, a plurality of connecting blocks 4 distributed in an annular array are welded on the inner wall of the rotary drum 3, an arc part 15 is formed at the joint of the connecting blocks 4 and the inner wall of the rotary drum 3, a plurality of studs 5 coaxially arranged with the rotary drum 3 are welded at one ends of the connecting blocks 4 far away from the inner wall of the rotary drum 3, a conical guide part 14 is formed at one end of the stud 5 close to the extension pipe 2, and the small end of the guide part 14 faces the extension pipe 2, be formed with the passageway 6 that is used for the oil drain between the adjacent connecting block 4, the one end threaded connection of double-screw bolt 5 and extension pipe 2 is used for sealing extension pipe 2, is equipped with the holding surface 9 that parallel extension pipe 2 terminal surface set up on the connecting block 4, and when double-screw bolt 5 and extension pipe 2 threaded connection, holding surface 9 was inconsistent with the terminal surface of extension pipe 2.

As shown in fig. 2 and 3, one end of the rotary drum 3, which is far away from the casing 1, is detachably connected with a drainage tube 10, one end of the drainage tube 10 is bonded with a sleeve 11, an annular groove 12 is formed in the outer peripheral wall of the rotary drum 3, an annular convex edge 13 embedded in the groove 12 is formed on the inner wall of the sleeve 11, and the longitudinal section of the annular convex edge 13 is semicircular and the arc convex surface of the annular convex edge is arranged towards the axis of the sleeve 11.

The working process is as follows: when the lubricating oil is replaced, the sleeve 11 is sleeved on the rotary drum 3, the annular convex edge 13 is clamped into the groove 12, the semicircular shape reduces the contact area between the annular convex edge 13 and the rotary drum 3, so that the friction force between the annular convex edge 13 and the rotary drum 3 when the sleeve 11 and the rotary drum 3 move relatively is reduced, the sleeve 11 is convenient to mount and dismount, the annular convex edge 13 abuts against the inner wall of the groove 12, the annular convex edge 13 is fixed, the sleeve 11 and the drainage tube 10 are fixed, the drainage tube 10 is arranged, the outflow path of the lubricating oil is convenient to adjust, the lubricating oil is convenient to recover, the rotary drum 3 is held by a hand and rotates, the stud 5 is driven to rotate by the connecting blocks 4, so that the stud 5 is rotated out from the extension tube 2, the arc part 15 can reduce the stress concentration between the connecting blocks 4 and the inner wall of the rotary drum 3, and the strength of the connecting blocks 4 and the inner wall of the rotary drum 3 is improved, further, the service life of the rotary drum 3 is prolonged, meanwhile, the limiting ring 7 moves in the annular groove 8, lubricating oil in the oil pool flows out from the extension pipe 2 and then flows out from the inner wall of the rotary drum 3 through the channel 6, so that hands and lubricating oil of operators are isolated, the limiting ring 7 can only move in the annular groove 8, so that the limiting effect is achieved on the rotary drum 3, the rotary drum 3 is convenient to keep in a connection state with the shell 1, the rotary drum 3 is prevented from being lost, after the rotary drum 3 is placed, the rotary drum 3 is moved to enable the stud 5 to be aligned with the inner hole of the extension pipe 2, then the rotary drum 3 is rotated, the stud 5 is driven to rotate through the connecting blocks 4 to be used for sealing the extension pipe 2, the small end area of the guide part 14 is small, so that the screw can be conveniently embedded into the extension pipe 2, the guide effect is achieved on the installation of the screw, when the rotary drum 3 is subjected to external force inconsistent with the axial direction of the rotary drum, the connecting blocks 4 extrude the end surface of the extension pipe 2 through the supporting surface 9, thereby provide the holding power to rotary drum 3, and then improve rotary drum 3 and bear the ability of external force, the utility model discloses make lubricating oil can not make operating personnel's hand dirty at the change in-process.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a durable type gear reducer which characterized in that: including casing (1), be equipped with the oil bath in casing (1), extension pipe (2) of fixedly connected with and oil bath intercommunication on casing (1) outer wall, extension pipe (2) overcoat is equipped with rotary drum (3), a plurality of connecting blocks (4) that are the annular array and distribute of fixedly connected with on rotary drum (3) inner wall, it is a plurality of one end fixedly connected with that rotary drum (3) inner wall was kept away from in connecting block (4) is same with double-screw bolt (5) of the coaxial setting of rotary drum (3), and is adjacent be formed with passageway (6) that are used for the oil drain between connecting block (4), double-screw bolt (5) and the one end threaded connection of extension pipe (2) are used for sealing extension pipe (2).

2. A durable gear reducer as claimed in claim 1, wherein: the one end that rotary drum (3) are close to casing (1) is formed with spacing ring (7) towards its axis department setting, offer annular (8) that are used for holding spacing ring (7) activity on the periphery wall of extension pipe (2).

3. A durable gear reducer as claimed in claim 1, wherein: the connecting block (4) is provided with a supporting surface (9) arranged parallel to the end surface of the extension pipe (2), and when the stud (5) is in threaded connection with the extension pipe (2), the supporting surface (9) is abutted to the end surface of the extension pipe (2).

4. A durable gear reducer as claimed in claim 1, wherein: the one end that casing (1) was kept away from in rotary drum (3) can be dismantled and be connected with drainage tube (10), the one end fixedly connected with sleeve (11) of drainage tube (10), seted up on the periphery wall of rotary drum (3) and be annular recess (12), be formed with annular bead (13) of embedding recess (12) on the inner wall of sleeve (11).

5. The durable gear reducer of claim 4, wherein: the longitudinal section of the annular convex rib (13) is semicircular, and the arc convex surface of the annular convex rib faces the axis of the sleeve (11).

6. A durable gear reducer as claimed in claim 1, wherein: one end of the stud (5) close to the extension pipe (2) is provided with a conical guide part (14), and the small end of the guide part (14) faces the extension pipe (2).

7. A durable gear reducer as claimed in claim 1, wherein: and an arc part (15) is formed at the joint of the connecting block (4) and the inner wall of the rotary drum (3).

8. A durable gear reducer as claimed in claim 1, wherein: the rotary drum (3) is made of carbon steel.