CN215410094U

CN215410094U - Multi-stage speed change mechanism for gear reduction box

Info

Publication number: CN215410094U
Application number: CN202120787200.1U
Authority: CN
Inventors: 孙茂镇
Original assignee: Nanjing Changxin Machinery Equipment Co ltd
Current assignee: Nanjing Changxin Machinery Equipment Co ltd
Priority date: 2021-04-17
Filing date: 2021-04-17
Publication date: 2022-01-04
Anticipated expiration: 2031-04-17

Abstract

The utility model relates to the technical field of speed change mechanisms, in particular to a multi-stage speed change mechanism for a gear reduction box, which comprises a reduction box main body, wherein one side of the reduction box main body is provided with a connecting hole, one side of the reduction box main body, which is close to the connecting hole, is provided with a fixing groove, one side of the reduction box main body, which is close to the connecting hole, is connected with a connecting ring through threads, one side of the connecting ring is fixedly connected with an oil drum, one side of the oil drum, which is close to the connecting ring, is fixedly connected with an oil outlet pipe, one side of the oil drum, which is far away from the oil outlet pipe, is fixedly connected with an oil inlet pipe, and the inside of the oil inlet pipe is connected with a pipe plug in a sliding manner. The utility model has the advantages that: this a multistage speed change mechanism for gear reduction box through the connecting hole to and fixed slot, go-between, oil drum, play oil pipe, advance oil pipe, slide bar, sleeve pipe, head rod, connecting plate, limiting plate, second connecting rod, dead lever, sealed lid, third connecting rod, slider, slide and the cooperation setting between the spring.

Description

Multi-stage speed change mechanism for gear reduction box

Technical Field

The utility model relates to the technical field of speed change mechanisms, in particular to a multi-stage speed change mechanism for a gear reduction box.

Background

The gear reduction box is widely applied in the mechanical industry, when the output rotating speed of a motor is input from a driving shaft, a pinion is driven to rotate, a bull gear is driven by the pinion to move, the gear ratio of the bull gear is more than that of the pinion, the rotating speed of the bull gear is slower than that of the pinion, and then the bull gear is output by a shaft (an output shaft) of the bull gear, so that the output speed reduction effect is achieved; the gear reduction box has various forms according to the requirements of practical application, including primary transmission, secondary transmission, tertiary transmission and the like; however, no matter how many-pole transmission is adopted, after the conventional gear reduction box determines the transmission ratio, the output rotating speed is determined, namely under the condition that the rotating speed of the input shaft is determined, the rotating speed on the output shaft can only be unique; people design and invent a speed-changing gear reduction box according to the needs, namely in the same gear reduction box, two or more transmission ratios are designed, a plurality of sets of gear transmissions are arranged, and the speed regulation is realized by a speed-changing mechanism; the speed change mechanism adopted in the existing gearbox is diversified by adopting different means and schemes by different manufacturers.

The existing product has the defects that after the gear reduction box and the speed change mechanism work for a long time, if lubricating oil is not added to lubricate the gear, parts are abraded, and the service life of the gear reduction box is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a multi-stage speed change mechanism for a gear reduction box.

The purpose of the utility model is realized by the following technical scheme: a multi-stage speed change mechanism for a gear reduction box comprises a reduction box main body, wherein one side of the reduction box main body is provided with a connecting hole, one side of the reduction box main body, which is close to the connecting hole, is provided with a fixing groove, one side of the reduction box main body, which is close to the connecting hole, is connected with a connecting ring through threads, one side of the connecting ring is fixedly connected with an oil drum, one side of the oil drum, which is close to the connecting ring, is fixedly connected with an oil outlet pipe, one side of the oil drum, which is far away from the oil outlet pipe, is fixedly connected with an oil inlet pipe, and the inside of the oil inlet pipe is slidably connected with a pipe plug;

one side sliding connection that the oil drum is close to into oil pipe has the slide bar, the surface sliding connection of slide bar has the sleeve pipe, the bottom of the inner wall of sheathed tube one side fixed connection oil drum, the inside fixedly connected with head rod of slide bar, the surface rotation of head rod is connected with the connecting plate, one side fixedly connected with limiting plate of head rod, one side rotation that the head rod was kept away from to the connecting plate is connected with the second connecting rod, the surface fixed connection of second connecting rod has the dead lever, one side fixedly connected with of dead lever seals the lid.

Optionally, the outer fixed surface of the sealing cover is connected with a third connecting rod, one side of the third connecting rod is fixedly connected with a sliding block, the bottom of the inner wall of the oil drum is provided with a slide way, the outer fixed surface of the fixing rod is connected with a spring, and the spring is far away from the inner wall of one side of the fixing rod which is fixedly connected with the oil drum.

Optionally, the diameter of the connecting hole is matched with the diameter of the oil outlet pipe, the diameter of the fixing groove is matched with the diameter of the connecting ring, and the thread pitch of the threads arranged on the inner wall of the fixing groove is matched with the thread pitch of the threads arranged on the outer surface of the connecting ring.

Optionally, the diameter of the sliding rod is matched with the diameter of the cavity of the sleeve, and the length of the sliding rod is greater than that of the sleeve.

Optionally, the size of the first connecting rods is equal to the size of the second connecting rods, the number of the first connecting rods is two, the two first connecting rods are uniformly distributed inside the sliding rod, and the first connecting rods completely penetrate through the sliding rod.

Optionally, the diameter of the sliding rod is equal to that of the fixed rod, the axis of the fixed rod coincides with that of the sealing cover, and the diameter of the sealing cover is larger than that of the oil outlet pipe.

Optionally, the size of slider and the size looks adaptation of slide, the quantity of slide is two, two the slide is symmetrical about the axle center of dead lever.

The utility model has the following advantages:

the multi-stage speed change mechanism for the gear reduction box comprises a connecting hole, a fixed groove, a connecting ring, an oil drum, an oil outlet pipe, an oil inlet pipe, a slide rod, a sleeve, a first connecting rod, a connecting plate, a limiting plate, a second connecting rod, a fixed rod, a sealing cover, a third connecting rod, a slide block, a slide way and a spring, wherein the oil drum is fixedly connected with a reduction box body under the action of the fixed groove and the connecting ring, the connecting plate is rotated under the action of the first connecting rod and the second connecting rod by pressing the slide rod downwards, the fixed rod drives the sealing cover to slide under the action of the third connecting rod, the slide block and the slide way, lubricating oil flows into the reduction box body through the oil outlet pipe, then the slide rod is loosened, the fixed rod drives the sealing cover to recover the original position through the elasticity of the spring, sealing is kept, and the problem of abrasion of gears without lubrication after the gear reduction box and the speed change mechanism work for a long time is better solved, the parts are prevented from being excessively abraded, and the service life of the gear reduction box is ensured.

Drawings

FIG. 1 is a schematic view of a first assembled perspective structure of the present invention;

FIG. 2 is a schematic cross-sectional view of an assembly of the present invention;

figure 3 is a schematic view of an exploded structure of an assembly of the present invention;

fig. 4 is a schematic sectional structure view of the oil drum of the present invention.

In the figure: 1-a speed reducer main body, 2-a connecting hole, 3-a fixing groove, 4-a connecting ring, 5-an oil drum, 6-an oil outlet pipe, 7-an oil inlet pipe, 8-a pipe plug, 9-a sliding rod, 10-a sleeve, 11-a first connecting rod, 12-a connecting plate, 13-a limiting plate, 14-a second connecting rod, 15-a fixing rod, 16-a sealing cover, 17-a third connecting rod, 18-a sliding block, 19-a slideway and 20-a spring.

Detailed Description

The utility model will be further described with reference to the accompanying drawings, but the scope of the utility model is not limited to the following.

As shown in fig. 1-4, a multi-speed change mechanism for a gear reduction box comprises a reduction box main body 1, a connecting hole 2 is formed in one side of the reduction box main body 1, a fixing groove 3 is formed in one side of the reduction box main body 1 close to the connecting hole 2, a connecting ring 4 is connected to one side of the reduction box main body 1 close to the connecting hole 2 through a thread, an oil drum 5 is fixedly connected to one side of the connecting ring 4, the reduction box main body 1 is fixedly connected to the oil drum 5 through the matching arrangement of the fixing groove 3 and the connecting ring 4, an oil outlet pipe 6 is fixedly connected to one side of the oil drum 5 close to the connecting ring 4, an oil inlet pipe 7 is fixedly connected to one side of the oil drum 5 far away from the oil outlet pipe 6, a pipe plug 8 is slidably connected to the inside of the oil inlet pipe 7, lubricating oil is added to the inside of the oil drum 5 through the oil inlet pipe 7, and then the oil inlet pipe 7 is sealed through the pipe plug 8;

one side sliding connection that oil drum 5 is close to into oil pipe 7 has slide bar 9, slide bar 9's surface sliding connection has sleeve pipe 10, the bottom of one side fixed connection oil drum 5's of sleeve pipe 10 inner wall, slide bar 9's inside fixedly connected with head rod 11, head rod 11's surface rotates and is connected with connecting plate 12, one side fixedly connected with limiting plate 13 of head rod 11, one side rotation that head rod 11 was kept away from to connecting plate 12 is connected with second connecting rod 14, the surface fixed connection of second connecting rod 14 has dead lever 15, one side fixedly connected with sealed lid 16 of dead lever 15, through pressing slide bar 9, make connecting plate 12 rotate through the effect of head rod 11 and second connecting rod 14, make dead lever 15 drive sealed lid 16 and slide.

As a preferred technical scheme of the utility model: outer fixed surface of sealed lid 16 is connected with third connecting rod 17, one side fixedly connected with slider 18 of third connecting rod 17, slide 19 has been seted up to the bottom of the inner wall of oil drum 5, the outer fixed surface of dead lever 15 is connected with spring 20, one side fixedly connected with oil drum 5's of dead lever 15 inner wall is kept away from to spring 20, through third connecting rod 17, slider 18 and slide 19's cooperation setting, it is more convenient when sliding to make sealed lid 16, effect through spring 20 can reset.

As a preferred technical scheme of the utility model: the diameter of connecting hole 2 and the diameter looks adaptation of going out oil pipe 6, the diameter of fixed slot 3 and the diameter looks adaptation of go-between 4, the pitch of the screw thread that the 3 inner walls of fixed slot set up and the pitch looks adaptation of the screw thread that the 4 surfaces of go-between set up for being connected between reducing gear box main part 1 and the oil drum 5 is more firm.

As a preferred technical scheme of the utility model: the diameter of the sliding rod 9 is matched with that of the cavity of the sleeve 10, and the length of the sliding rod 9 is larger than that of the sleeve 10, so that the sliding rod 9 can better slide.

As a preferred technical scheme of the utility model: the size of the first connecting rods 11 is equal to that of the second connecting rods 14, the number of the first connecting rods 11 is two, the two first connecting rods 11 are uniformly distributed in the sliding rod 9, and the first connecting rods 11 completely penetrate through the sliding rod 9, so that the connecting plate 12 can work better.

As a preferred technical scheme of the utility model: the diameter of the sliding rod 9 is equal to that of the fixing rod 15, the axis of the fixing rod 15 coincides with that of the sealing cover 16, and the diameter of the sealing cover 16 is larger than that of the oil outlet pipe 6, so that the fixing rod 15 can drive the sealing cover 16 to slide better.

As a preferred technical scheme of the utility model: the size of the sliding block 18 is matched with that of the slide ways 19, the number of the slide ways 19 is two, and the two slide ways 19 are symmetrical about the axis of the fixed rod 15, so that the whole device is more symmetrical and reasonable.

The working process of the utility model is as follows: through the effect of fixed slot 3 and go-between 4, will go out

oil pipe

6 and 2 positions of connecting hole correspond, then with gear box main part 1 and oil drum 5 fixed connection, through pressing down slide bar 9, make connecting plate 12 rotate through the effect of head rod 11 and second connecting rod 14, make dead lever 15 drive sealed lid 16, through third connecting rod 17, cooperation setting between slider 18 and the slide 19 slides, make lubricating oil can get into the inside of gear box main part 1 through going out oil pipe 6, then loosen slide bar 9, elasticity through spring 20, make dead lever 15 drive sealed lid 16 and resume the normal position.

In summary, the following steps: the multi-stage speed change mechanism for the gear reduction box comprises a connecting hole 2, a fixed groove 3, a connecting ring 4, an oil drum 5, an oil outlet pipe 6, an oil inlet pipe 7, a sliding rod 9, a sleeve 10, a first connecting rod 11, a connecting plate 12, a limiting plate 13, a second connecting rod 14, a fixed rod 15, a sealing cover 16, a third connecting rod 17, a sliding block 18, a sliding way 19 and a spring 20, wherein the oil drum 5 is fixedly connected with the reduction box body 1 under the action of the fixed groove 3 and the connecting ring 4, the connecting plate 12 rotates under the action of the first connecting rod 11 and the second connecting rod 14 through downward pressing of the sliding rod 9, the fixed rod 15 drives the sealing cover 16 to slide under the action of the third connecting rod 17, the sliding block 18 and the sliding way 19, lubricating oil flows into the reduction box body 1 through the oil outlet pipe 6, then the sliding rod 9 is loosened, and the elastic force of the spring 20 is passed through, the fixing rod 15 drives the sealing cover 16 to recover the original position and keep sealing, so that the problem of abrasion of gears which are not lubricated after the gear reduction box and the speed change mechanism work for a long time is solved better, excessive abrasion of parts is avoided, and the service life of the gear reduction box is ensured.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A multi-speed change mechanism for a gear reduction box is characterized in that: the reducer box comprises a reducer box main body (1), wherein a connecting hole (2) is formed in one side of the reducer box main body (1), a fixing groove (3) is formed in one side, close to the connecting hole (2), of the reducer box main body (1), a connecting ring (4) is connected to one side, close to the connecting hole (2), of the reducer box main body (1) through threads, an oil drum (5) is fixedly connected to one side of the connecting ring (4), an oil outlet pipe (6) is fixedly connected to one side, close to the connecting ring (4), of the oil drum (5), an oil inlet pipe (7) is fixedly connected to one side, far away from the oil outlet pipe (6), of the oil drum (5), and a pipe plug (8) is connected to the inner portion of the oil inlet pipe (7) in a sliding mode;

one side sliding connection that oil drum (5) is close to into oil pipe (7) has slide bar (9), the surface sliding connection of slide bar (9) has sleeve pipe (10), the bottom of the inner wall of one side fixed connection oil drum (5) of sleeve pipe (10), the inside fixedly connected with head rod (11) of slide bar (9), the surface rotation of head rod (11) is connected with connecting plate (12), one side fixedly connected with limiting plate (13) of head rod (11), one side rotation that head rod (11) were kept away from in connecting plate (12) is connected with second connecting rod (14), the surface fixedly connected with dead lever (15) of second connecting rod (14), one side fixedly connected with sealed lid (16) of dead lever (15).

2. The multi-speed transmission mechanism for a gear reducer according to claim 1, wherein: the outer fixed surface of sealed lid (16) is connected with third connecting rod (17), one side fixedly connected with slider (18) of third connecting rod (17), slide (19) have been seted up to the bottom of the inner wall of oil drum (5), the outer fixed surface of dead lever (15) is connected with spring (20), the inner wall of one side fixed connection oil drum (5) of dead lever (15) is kept away from in spring (20).

3. The multi-speed transmission mechanism for a gear reducer according to claim 1, wherein: the diameter of connecting hole (2) and the diameter looks adaptation of going out oil pipe (6), the diameter of fixed slot (3) and the diameter looks adaptation of go-between (4), the pitch of the screw thread that the fixed slot (3) inner wall set up and the pitch looks adaptation of the screw thread that go-between (4) surface set up.

4. The multi-speed transmission mechanism for a gear reducer according to claim 1, wherein: the diameter of the sliding rod (9) is matched with that of the cavity of the sleeve (10), and the length of the sliding rod (9) is larger than that of the sleeve (10).

5. The multi-speed transmission mechanism for a gear reducer according to claim 1, wherein: the size of the first connecting rods (11) is equal to that of the second connecting rods (14), the number of the first connecting rods (11) is two, the two first connecting rods (11) are uniformly distributed in the sliding rod (9), and the first connecting rods (11) completely penetrate through the sliding rod (9).

6. The multi-speed transmission mechanism for a gear reducer according to claim 1, wherein: the diameter of the sliding rod (9) is equal to that of the fixing rod (15), the axis of the fixing rod (15) is superposed with that of the sealing cover (16), and the diameter of the sealing cover (16) is larger than that of the oil outlet pipe (6).

7. A multi-speed change mechanism for a gear reducer according to claim 2, wherein: the size of slider (18) and the size looks adaptation of slide (19), the quantity of slide (19) is two, two slide (19) are about the axle center symmetry of dead lever (15).