Intertooth transmission structure of speed reducer

Abstract

The utility model provides an intertooth transmission structure of speed reducer, including shell, driving gear and driven gear, driving gear and driven gear are both rotatingly connected inside shell through shaft body, driving gear and driven gear mesh with each other, the surface of driving gear is provided with first groove. The driving gear drives the driven gear to rotate to achieve speed reduction, in the meshing transmission process of the driving gear and the driven gear, the driven gear can drive the air supply mechanism to act through the driving mechanism, the air supply mechanism can convey air into the pipeline, and finally the air is sprayed out from the interior of the pipeline through the through holes in the surfaces of the protrusions; the sprayed gas can pass through gaps of gear teeth on the driving gear and the driven gear in the first groove and the second groove, so that metal scraps on the gear teeth are taken away, and further abrasion of the driving gear and the driven gear caused by the metal scraps is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a speed reducer technical field, concretely is a gear transmission structure of speed reducer. BACKGROUND

[0002] Speed reducer is a kind of independent component by the gear transmission, worm drive, gear-worm drive enclosed in rigid shell, commonly used as the speed reduction transmission device between prime mover and working machine, generally for the transmission equipment of low rotational speed big torque, the motor, internal combustion engine or other high-speed operation power is passed through the gear of the input shaft on the speed reducer and the large gear on the output shaft to reach the purpose of speed reduction by the gear of the input shaft on the speed reducer and the large gear on the output shaft to reach the purpose of speed reduction;

[0003] The speed reducer in prior art can cause some metal chips generated by gear mutual meshing friction between gears in the process of long-time mutual meshing of gears, and the chips can cause the tooth wear of gears to increase if existing in the meshing part of two gears for a long time, thereby reducing the service life of gears. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a gear transmission structure of speed reducer to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A gear transmission structure of speed reducer, including casing, driving gear and driven gear, the driving gear and driven gear are both rotated and connected in the inside of casing by shaft body, and the driving gear and driven gear are mutually meshed, the surface of driving gear is provided with first groove, the surface of driven gear is provided with second groove, and the first groove and second groove are provided with cleaning mechanism between them;

[0007] The cleaning mechanism includes pipeline, protrusion, through-hole and baffle, the protrusion is fixedly connected to the inside of pipeline, the through-hole is arranged on the side surface of protrusion, the baffle is fixedly installed in the inside of pipeline, the pipeline is arranged between the first groove and the second groove, and the both ends of the pipeline are provided with air supply mechanism between the casing.

[0008] Preferably, the air supply mechanism includes piston cylinder, piston block, piston rod and push plate, the push plate is horizontally movably connected to the inside of casing, the piston cylinder is fixedly installed on the inner wall of casing and communicated with the pipeline, the piston block is slidably connected to the inside of piston cylinder, one end of the piston rod penetrates the piston cylinder and is fixedly connected to the surface of piston block, and the other end of the piston rod is fixedly connected to the surface of push plate.

[0009] Preferably, a driving mechanism is arranged between the push plate and the driven gear, the driving mechanism comprising a crankshaft, a swing arm and a traction rod, the crankshaft being concentrically fixedly installed on the shaft of the driven gear, one end of the swing arm being hingedly connected to the eccentric end of the crankshaft, the other end of the swing arm being hingedly connected to one end of the traction rod, the other end of the traction rod being fixedly connected to the surface of the push plate.

[0010] Preferably, the inner wall of the shell is provided with a guide rod, and the push plate is horizontally slidingly connected to the surface of the guide rod.

[0011] Preferably, the partition plate is arranged obliquely, and the number of protrusions on both sides of the partition plate is the same.

[0012] Preferably, the first groove and the second groove have the same width, and gaps exist between the protrusions, the first groove, the second groove, the driving gear and the driven gear.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The utility model realizes deceleration by driving the driven gear to rotate through the driving gear, in the process of meshing transmission of the driving gear and the driven gear, the driven gear can drive the gas supply mechanism to act through the driving mechanism, the gas supply mechanism can deliver gas to the inside of the pipeline, and finally the gas is sprayed out from the inside of the pipeline through the through hole on the surface of the protrusion, the sprayed gas can pass through the gaps between the teeth of the driving gear and the driven gear in the first groove and the second groove, so as to carry away the metal scraps on the teeth, thereby preventing the driving gear and the driven gear from being further abraded due to the metal scraps. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the main structure of the utility model;

[0016] Figure 2 It is a schematic view of the internal structure of the shell of the utility model;

[0017] Figure 3 It is a schematic view of the main structure of the driving gear and the driven gear of the utility model;

[0018] Figure 4 It is a schematic view of the main structure of the gas supply mechanism of the utility model;

[0019] Figure 5 It is a schematic view of the sectional structure of the pipeline of the utility model;

[0020] Figure 6 It is a schematic view of the main structure of the utility model Figure 5 It is an enlarged structure schematic view of the A area of the utility model.

[0021] In the figure: 1, the shell; 2, driving gear; 3, driven gear; 4, first groove; 5, second groove; 6, pipeline; 7, protrusion; 8, through hole; 9, partition; 10, piston cylinder; 11, piston block; 12, piston rod; 13, push plate; 14, crankshaft; 15, swing arm; 16, traction rod; 17, guide rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figures 1-6 The utility model provides a kind of technical solutions: the gear transmission structure of reduction gear, including shell 1, driving gear 2 and driven gear 3, driving gear 2 and driven gear 3 are rotated and connected in the inside of shell 1 by shaft body, and driving gear 2 and driven gear 3 are engaged with each other, the surface of driving gear 2 is provided with first groove 4, the surface of driven gear 3 is provided with second groove 5, first groove 4 and second groove 5 are provided with cleaning mechanism between, cleaning mechanism includes pipeline 6, protrusion 7, through hole 8 and partition 9, protrusion 7 is fixedly connected in the inside of pipeline 6, through hole 8 is arranged in the side of protrusion 7, partition 9 is fixedly installed in the inside of pipeline 6, pipeline 6 is arranged between first groove 4 and second groove 5, and the both ends of pipeline 6 are provided with gas supply mechanism between shell 1.

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 And Figure 6 Driving gear 2 can normally drive driven gear 3, first groove 4 and second groove 5 can accommodate pipeline 6 by being provided, in the process of rotation of driving gear 2 and driven gear 3, gas supply mechanism can provide airflow to the inside of pipeline 6, airflow can enter pipeline 6 at this time, and enter protrusion 7 under the block of partition 9, finally move from the inside of protrusion 7 to the inside of first groove 4 and second groove 5 through through hole 8, at this time, airflow can pass from the gap between the teeth of driving gear 2 or driven gear 3, so that airflow can carry away metal chips on the teeth when passing, to further play a cleaning role on driving gear 2 and driven gear 3.

[0025] The air supply mechanism comprises a piston cylinder 10, a piston block 11, a piston rod 12 and a push plate 13, the push plate 13 is horizontally movably connected to the inside of the shell 1, the piston cylinder 10 is fixedly installed on the inner wall of the shell 1 and communicates with the pipeline 6, the piston block 11 is slidably connected to the inside of the piston cylinder 10, one end of the piston rod 12 penetrates through the piston cylinder 10 and is fixedly connected to the surface of the piston block 11, the other end of the piston rod 12 is fixedly connected to the surface of the push plate 13, a driving mechanism is arranged between the push plate 13 and the driven gear 3, the driving mechanism comprises a crankshaft 14, a swing arm 15 and a traction rod 16, the crankshaft 14 is concentrically fixedly installed on the shaft of the driven gear 3, one end of the swing arm 15 is hingedly connected to the eccentric end of the crankshaft 14, the other end of the swing arm 15 is hingedly connected to one end of the traction rod 16, and the other end of the traction rod 16 is fixedly connected to the surface of the push plate 13.

[0026] Please refer to Figure 2 , Figure 4 and Figure 5 , in this embodiment, the driven gear 3 can drive the crankshaft 14 to rotate when rotating, the crankshaft 14 can form a crank and connecting rod mechanism with the swing arm 15 and the traction rod 16 when rotating, so as to drive the traction rod 16 to reciprocate horizontally, at this time, the traction rod 16 can drive the push plate 13 to synchronously reciprocate horizontally, so that the push plate 13 drives the piston block 11 to synchronously reciprocate horizontally in the piston cylinder 10 through the piston rod 12, when the piston rod 12 moves away from the pipeline 6, the pressure in the piston cylinder 10 decreases, and the gas outside enters the piston cylinder 10 through the through hole 8, the protrusion 7 and the pipeline 6, when the piston rod 12 moves towards the pipeline 6, the pressure in the piston cylinder 10 increases, and the gas in the piston cylinder 10 can move to the outside through the pipeline 6, the protrusion 7 and the through hole 8, for the teeth of the driving gear 2 and the driven gear 3, the above process can periodically switch the suction and blowing actions on the surface of the teeth, so as to clean the metal debris on the surface of the teeth.

[0027] The inner wall of the shell 1 is provided with a guide rod 17, and the push plate 13 is horizontally slidably connected to the surface of the guide rod 17.

[0028] Please refer to Figure 1 and Figure 2 , the push plate 13 can move on the surface of the guide rod when reciprocating horizontally, and the guide rod can limit the movement of the push plate 13, so as to ensure that the traction rod 16 can only move horizontally, so that the crankshaft 14, the swing arm 15 and the traction rod 16 can form a crank and rocker structure.

[0029] The partition plate 9 is obliquely arranged, and the number of protrusions 7 on both sides of the partition plate 9 is the same.

[0030] Please refer to Figure 6The partition plate 9 can block the airflow so that the airflow can enter the protrusions 7 through the pipe 6, and the number of protrusions 7 on the upper and lower sides of the partition plate 9 is the same, so that the flow rates of the airflow on both sides are the same, thereby ensuring the cleaning effect of the driving gear 2 and the driven gear 3.

[0031] The first groove 4 and the second groove 5 have the same width, and there are gaps between the protrusions 7, the first groove 4, the second groove 5, the driving gear 2, and the driven gear 3.

[0032] In this embodiment, this structure can prevent the driving gear 2 and the driven gear 3 from interfering with the protrusions 7 during rotation, prevent the protrusions 7 from causing wear to the driving gear 2 and the driven gear 3, and enable the driving gear 2 and the driven gear 3 to work normally.

[0033] The driving gear 2 drives the driven gear 3 to rotate to achieve deceleration. During the meshing transmission of the driving gear 2 and the driven gear 3, the driven gear 3 can drive the gas supply mechanism to act through the driving mechanism, the gas supply mechanism can deliver gas into the pipe 6, and finally the gas is sprayed out from the inside of the pipe 6 through the through holes 8 on the surface of the protrusions 7. The sprayed gas can pass through the gaps between the teeth of the driving gear 2 and the driven gear 3 in the first groove 4 and the second groove 5, thereby carrying away the metal debris on the teeth, so as to prevent the driving gear 2 and the driven gear 3 from being further worn by the metal debris.

[0034] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A tooth-to-tooth transmission structure of a speed reducer, comprising a housing (1), a driving gear (2) and a driven gear (3), characterized in that: The driving gear (2) and the driven gear (3) are rotatably connected to the inside of the shell (1) through shaft bodies, and the driving gear (2) and the driven gear (3) are engaged with each other, the surface of the driving gear (2) is provided with a first groove (4), the surface of the driven gear (3) is provided with a second groove (5), and a cleaning mechanism is arranged between the first groove (4) and the second groove (5). The cleaning mechanism comprises a pipeline (6), a protrusion (7), a through hole (8) and a partition plate (9), the protrusion (7) is fixedly connected to the inside of the pipeline (6), the through hole (8) is arranged on the side surface of the protrusion (7), the partition plate (9) is fixedly installed in the inside of the pipeline (6), the pipeline (6) is arranged between the first groove (4) and the second groove (5), and air supply mechanisms are arranged between the two ends of the pipeline (6) and the shell (1).

2. The intermeshing tooth drive of a speed reducer according to claim 1, wherein: The air supply mechanism comprises a piston cylinder (10), a piston block (11), a piston rod (12) and a push plate (13), the push plate (13) is horizontally movably connected to the inside of the shell (1), the piston cylinder (10) is fixedly installed on the inner wall of the shell (1) and is communicated with the pipeline (6), the piston block (11) is slidably connected to the inside of the piston cylinder (10), one end of the piston rod (12) penetrates through the piston cylinder (10) and is fixedly connected to the surface of the piston block (11), and the other end of the piston rod (12) is fixedly connected to the surface of the push plate (13).

3. The intermeshing tooth drive of a speed reducer as set forth in claim 2, wherein: A driving mechanism is arranged between the push plate (13) and the driven gear (3), the driving mechanism comprises a crankshaft (14), a swing arm (15) and a traction rod (16), the crankshaft (14) is concentrically fixedly installed on the shaft of the driven gear (3), one end of the swing arm (15) is hinged to the eccentric end of the crankshaft (14), the other end of the swing arm (15) is hinged to one end of the traction rod (16), and the other end of the traction rod (16) is fixedly connected to the surface of the push plate (13).

4. The intermeshing tooth drive of a speed reducer as set forth in claim 2, wherein: The inner wall of the shell (1) is provided with a guide rod (17), and the push plate (13) is horizontally slidably connected to the surface of the guide rod (17).

5. The intermeshing tooth drive of a speed reducer of claim 1, wherein: The partition plate (9) is inclined, and the number of protrusions (7) on both sides of the partition plate (9) is the same.

6. The intermeshing tooth drive of a speed reducer of claim 1, wherein: The widths of the first groove (4) and the second groove (5) are the same, and gaps exist between the protrusions (7), the first groove (4), the second groove (5), the driving gear (2) and the driven gear (3).

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