CN113833833B

CN113833833B - Adjustable precision SPN type planetary gear speed reducer

Info

Publication number: CN113833833B
Application number: CN202111291706.4A
Authority: CN
Inventors: 施璐平; 莫恒阳; 王文才
Original assignee: HANGZHOU SUPERIOR TRANSMISSION MACHINERY CO LTD
Current assignee: HANGZHOU SUPERIOR TRANSMISSION MACHINERY CO LTD
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2023-02-07
Anticipated expiration: 2041-11-03
Also published as: CN113833833A

Abstract

The invention discloses an adjustable-precision SPN type planetary gear reducer, which belongs to the field of speed reducers and comprises an installation cylinder, an input shaft and an output shaft, wherein engine oil is arranged in the installation cylinder, a circular ring is rotationally connected in the installation cylinder, a piston plate is slidably connected in a first piston cylinder, and an arc-shaped block is fixedly connected on the circular ring.

Description

Adjustable precision SPN type planetary gear speed reducer

Technical Field

The invention relates to the technical field of speed reducers, in particular to an SPN type planetary gear speed reducer with adjustable precision.

Background

In a family of speed reducers, the planetary speed reducer is widely applied to transmission systems such as servo motors, stepping motors, direct current motors and the like due to the advantages of small size, high transmission efficiency, wide speed reduction range, high precision and the like, and the planetary speed reducer needs to be lubricated by using a lubricant during operation so as to prolong the service life of the planetary speed reducer.

Among the prior art, planetary reducer is equipped with oil filler point and oil drain plug usually, injects engine oil to confined speed reducer inside through the oil filler point usually, after lubricated a period, changes the oil of inside through the oil drain plug, and the operation of device nevertheless can make in the engine oil adulterate the metal fillings for the easy aggravation wearing and tearing of internals.

Disclosure of Invention

The invention aims to provide an adjustable-precision SPN type planetary gear speed reducer which has the advantage of filtering engine oil and solves the problem of aggravation of the abrasion speed of internal parts of the speed reducer.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an adjustable precision SPN type planetary gear speed reducer, is including built-in installation section of thick bamboo, input shaft and the output shaft that has machine oil, the installation section of thick bamboo internal rotation is connected with the ring, it is three to rotate on the ring be connected with three pivot, it is three equal fixedly connected with driven gear in the pivot, fixedly connected with drive gear on the input shaft, it is three driven gear all with drive gear meshes, be equipped with in the installation section of thick bamboo with three driven gear meshed's annular tooth, fixedly connected with planet carrier on the output shaft, it is three the pivot all with the planet carrier rotates to be connected, the planet carrier is located the inside of installation section of thick bamboo, fixedly connected with support on the installation section of thick bamboo, the first piston section of thick bamboo of fixedly connected with on the support, sliding connection has the piston board in the first piston section of thick bamboo, fixedly connected with first piston rod on the piston board, seted up on the installation section of thick bamboo with first piston rod complex hole, fixedly connected with arc piece on the ring, the arc piece with first piston rod intermittent type offsets.

Preferably, be equipped with on the installation section of thick bamboo and be used for filtering the filtering mechanism of machine oil in the installation section of thick bamboo, filtering mechanism includes the rose box, fixedly connected with oil pumping pipe and oil filling pipe on the first piston section of thick bamboo, oil pumping pipe keeps away from the one end fixed connection of first piston section of thick bamboo is in on the oil filling pipe the installation section of thick bamboo is gone up to be located the installation section of thick bamboo with the opposition side of oil pumping union coupling department, rose box fixed connection be in on the oil pumping pipe, fixedly connected with filter screen in the rose box, oil pumping pipe with all be equipped with first check valve on the oil filling pipe, first spring has been placed in the first piston section of thick bamboo, the both ends of first spring respectively with first piston section of thick bamboo with the piston plate offsets.

Preferably, be equipped with on the rose box and be used for fixing the output shaft with the locking mechanism of installation section of thick bamboo axiality, locking mechanism includes fixed connection and is in two second piston barrels on the rose box, two equal sliding connection has the second piston rod in the second piston barrel, the fourth spring has been placed in the second piston barrel, the both ends of fourth spring respectively with the second piston barrel with the second piston rod offsets, sliding connection has oval piece in the installation section of thick bamboo, the arc piece with oval piece intermittent type offsets, fixedly connected with montant on the oval piece, seted up on the installation section of thick bamboo with montant complex through-hole, it is connected with the down tube to rotate on the montant, it is connected with the connecting rod to rotate on the down tube, second piston rod fixed connection is in on the connecting rod.

Preferably, locking mechanism still includes that fixed connection has the box body that the built-in hydraulic oil that has on the installation section of thick bamboo, two equal fixedly connected with first pipeline and second pipeline on the second piston cylinder, two first pipeline is kept away from the one end fixed connection of second piston cylinder is in on the box body, two keep away from on the second pipeline the one end fixedly connected with hydraulic stem of second piston cylinder, two first pipeline and two all be equipped with the second check valve on the second pipeline.

Preferably, locking mechanism still includes the clamping ring, fixedly connected with guide arm on the installation section of thick bamboo, seted up on the clamping ring with guide arm complex through-hole, the first limiting plate of fixedly connected with on the guide arm, the noose has the second spring on the guide arm, the both ends of second spring respectively with first limiting plate with the clamping ring offsets, two mounting brackets of fixedly connected with on the installation section of thick bamboo, two the hydraulic stem difference fixed connection is two on the mounting bracket, the output fixedly connected with tripod of hydraulic stem, the tripod with the clamping ring offsets, fixedly connected with platform piece on the output shaft, the clamping ring internal rotation is connected with the ball, the ball roll is connected in on the lateral wall of platform piece.

Preferably, be equipped with on the locking mechanism and be used for doing the cooling mechanism of the interior machine oil cooling of rose box, cooling mechanism connects including rotating cylinder cam on the rose box, two fixedly connected with pressure release pipe on the second pipeline, pressure release pipe fixed connection is in on the box body, be equipped with the pressure valve on the pressure release pipe, the hollow post of fixedly connected with on the pressure release pipe, fixedly connected with rotor plate on the cylinder cam, rotor plate rotates to be connected in the hollow post, fixedly connected with blade on the cylinder cam, the side orientation of blowing of blade the rose box.

Preferably, be equipped with on the cooling mechanism and be used for the clearance mechanism of metal fillings in the rose box, clearance mechanism includes sliding connection and is in scraper blade in the rose box, the scraper blade with the filter screen laminating, the fixedly connected with lantern ring on the scraper blade, the lantern ring cup joints on the cylindrical cam, fixedly connected with convex ball in the lantern ring, convex ball sliding connection be in the spout on the cylindrical cam.

Preferably, the cleaning mechanism further comprises a blocking block, a through groove matched with the blocking block is formed in the filter box, the scraper blade intermittently abuts against the blocking block, a rectangular plate is fixedly connected to the blocking block, a guide pillar is fixedly connected to the filter box, a through hole matched with the guide pillar is formed in the rectangular plate, a second limiting plate is fixedly connected to the guide pillar, a third spring is sleeved on the guide pillar, two ends of the third spring respectively abut against the rectangular plate and the second limiting plate, an electromagnet is fixedly connected to the lower portion of the blocking block on the filter box, an inclined plate is fixedly connected to the lower portion of the electromagnet on the filter box, an L-shaped frame is fixedly connected to the filter box, a pressure-sensitive switch for controlling the electromagnet is arranged on the L-shaped frame, and the blocking block intermittently abuts against the pressure-sensitive switch.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the engine oil in the installation cylinder can be filtered by arranging the filtering mechanism, so that metal chips doped in the engine oil are filtered, the abrasion to parts in the installation cylinder is reduced, meanwhile, the flowing of the engine oil can cool and lubricate the parts in the installation cylinder, the output shaft can be kept in a coaxial state with the installation cylinder by arranging the locking mechanism, the transmission precision of the output shaft is ensured, the engine oil flowing through the filter box can be cooled by arranging the cooling mechanism, and the metal chips on the filter screen can be cleaned by arranging the cleaning mechanism, so that the filter screen is prevented from being blocked.

Drawings

FIG. 1 is an external view of the present invention;

FIG. 2 is a schematic view of the structure of portion A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is a schematic view of the structure of the first piston cylinder of the present invention;

FIG. 5 is a schematic view of the structure at the planet carrier of the present invention;

FIG. 6 is a schematic view of the structure at the box body of the present invention;

FIG. 7 is a schematic view of the scraper blade of the present invention;

FIG. 8 is a schematic view of the structure of the present invention at the position of the ring;

FIG. 9 is a schematic view of the structure of portion B of FIG. 8 according to the present invention;

fig. 10 is a schematic structural view of a fourth spring according to the present invention.

In the figure: 1. mounting the cylinder; 11. an annular tooth; 12. a circular ring; 121. an arc-shaped block; 13. a planet carrier; 14. a rotating shaft; 2. an input shaft; 21. a drive gear; 22. a driven gear; 3. an output shaft; 31. a round table block; 32. pressing a ring; 33. a ball bearing; 34. a guide bar; 341. a first limit plate; 342. a second spring; 35. a tripod; 36. a mounting frame; 37. a hydraulic rod; 4. a first piston cylinder; 41. a support; 42. an oil filler pipe; 43. an oil pumping pipe; 44. a first check valve; 45. a first piston rod; 451. a piston plate; 452. a first spring; 5. a filter box; 51. filtering with a screen; 52. a squeegee; 521. a collar; 522. a convex ball; 53. blocking; 531. a rectangular plate; 532. a guide post; 533. a second limiting plate; 534. a third spring; 535. a sloping plate; 54. an electromagnet; 541. an L-shaped frame; 542. a pressure sensitive switch; 6. a box body; 61. a second piston cylinder; 611. a fourth spring; 62. a second conduit; 621. a pressure relief pipe; 622. a pressure valve; 63. a second one-way valve; 64. a first pipe; 65. an elliptical block; 651. a vertical rod; 652. a diagonal rod; 653. a connecting rod; 654. a second piston rod; 66. a hollow column; 661. a cylindrical cam; 662. rotating the plate; 663. a blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

The invention provides a technical scheme that: the utility model provides an adjustable precision SPN type planetary gear speed reducer, including built-in installation section of thick bamboo 1 that has machine oil, input shaft 2 and output shaft 3, the rotation is connected with ring 12 in the installation section of thick bamboo 1, it is connected with three pivot 14 to rotate on the ring 12, equal fixedly connected with driven gear 22 on the three pivot 14, fixedly connected with drive gear 21 on the input shaft 2, three driven gear 22 all meshes with drive gear 21, be equipped with the annular tooth 11 with three driven gear 22 meshing in the installation section of thick bamboo 1, fixedly connected with planet carrier 13 on the output shaft 3, three pivot 14 all rotates with planet carrier 13 to be connected, planet carrier 13 is located the inside of installation section of thick bamboo 1, fixedly connected with support 41 on the installation section of thick bamboo 1, the first piston section of thick bamboo 4 of fixedly connected with on the support 41, sliding connection has piston plate 451 in the first piston section of thick bamboo 4, first piston plate 451 is last fixedly connected with first piston rod 45, the hole with first piston rod 45 complex has been seted up on the installation section of thick bamboo 1, fixedly connected with arc piece 121 on the ring 12, arc piece 121 and first piston rod 45 intermittent type counterbalance.

Referring to fig. 1 and 3, an input shaft 2 is connected to an output end of an external motor, the mounting cylinder 1 is fixed at a position such that a filter box 5 on the mounting cylinder 1 is located at a lower position, a driving gear 21 fixedly connected to the input shaft 2 rotates when the input shaft 2 rotates, a driven gear 22 meshed with the driving gear 21 rotates, the driven gear 22 is meshed with an annular tooth 11 in the mounting cylinder 1, the driving gear 21 drives the driven gear 22 to rotate, the driven gear 22 can revolve around the driving gear 21 in the mounting cylinder 1, a rotating shaft 14 fixedly connected to the driven gear 22 revolves around the driven gear 22, two ends of the rotating shaft 14 respectively rotate around the annular tooth 12 and a planet carrier 13, and the annular tooth 12 and the planet carrier 13 can be driven by the rotating shaft 14 to rotate around an axis of the mounting cylinder 1, and an output shaft 3 connected to the planet carrier 13 rotates, so that the rotation speed of the output shaft 3 is reduced and the torque is increased.

Be equipped with the filtering mechanism who is used for filtering machine oil in the installation section of thick bamboo 1 on the installation section of thick bamboo 1, filtering mechanism includes rose box 5, fixedly connected with oil pumping pipe 43 and oil injection pipe 42 on the first piston section of thick bamboo 4, the one end fixed connection who keeps away from first piston section of thick bamboo 4 on the oil pumping pipe 43 is on installation section of thick bamboo 1, the one end fixed connection who keeps away from first piston section of thick bamboo 4 on the oil injection pipe 42 lies in the opposition side of installation section of thick bamboo 1 with oil pumping pipe 43 junction on installation section of thick bamboo 1, rose box 5 fixed connection is on oil pumping pipe 43, fixedly connected with filter screen 51 in the rose box 5, all be equipped with first check valve 44 on oil pumping pipe 43 and the oil injection pipe 42, first spring 452 has been placed in the first piston section of thick bamboo 4, the both ends of first spring 452 offset with first piston section of thick bamboo 4 and piston plate 451 respectively.

Referring to fig. 1, 3, 8 and 9, when the ring 12 rotates, the arc block 121 fixedly connected to the ring 12 rotates synchronously with the ring 12, and the arc block 121 alternately contacts with the first piston rod 45 and the elliptical block 65, when the arc block 121 contacts with the first piston rod 45, the bottom of the first piston rod 45 can move upwards along the track of the arc block 121, and then the piston plate 451 fixedly connected to the first piston rod 45 moves upwards in the first piston cylinder 4, when the arc block 121 gradually leaves away from the first piston rod 45, the first piston plate 451 is pushed to slide downwards in the first piston cylinder 4 under the action of the first spring 452, the ring 12 rotates for a circle, so that the piston plate 451 slides back and forth in the first piston cylinder 4, and then the first piston cylinder 4 extracts the engine oil in the mounting cylinder 1 through the oil extraction pipe 43, and then re-injects the extracted engine oil into the mounting cylinder 1 through the oil injection pipe 42, so that the engine oil can flow, thereby lubricating and cooling the parts in the mounting cylinder 1, and at the same time the filter screen 5 filters the extracted engine oil, so that the wear of the installation box is intensified when the installation box 5 passes through the filter screen 5.

Example two

On the basis of the first embodiment, further, a locking mechanism for fixing the coaxiality of the output shaft 3 and the installation cylinder 1 is arranged on the filter box 5, the locking mechanism comprises two second piston cylinders 61 fixedly connected to the filter box 5, second piston rods 654 are slidably connected to the two second piston cylinders 61, fourth springs 611 are placed in the second piston cylinders 61, two ends of the fourth springs 611 abut against the second piston cylinders 61 and the second piston rods 654 respectively, elliptical blocks 65 are slidably connected to the installation cylinder 1, the arcuate blocks 121 abut against the elliptical blocks 65 intermittently, vertical rods 651 are fixedly connected to the elliptical blocks 65, through holes matched with the vertical rods 651 are formed in the installation cylinder 1, oblique rods 652 are rotatably connected to the vertical rods 651, connecting rods are rotatably connected to the oblique rods 652, the second piston rods 654 are fixedly connected to the connecting rods 653, the locking mechanism further comprises a box body 6 fixedly connected to the installation cylinder 1, first pipelines 64 and second pipelines 62 are fixedly connected to the two second piston cylinders 61, one ends of the two first pipelines 64 far away from the second piston cylinders 61 are fixedly connected to the box body 6, one ends of the two hydraulic rods 62 are far away from the second piston cylinders 61, and one ends of the two hydraulic rods 37 are both provided with the second piston cylinders 62, and the two hydraulic valves 62.

Referring to fig. 3, 4 and 10, when the arc block 121 on the ring 12 contacts the elliptical block 65 and continues to move, the elliptical block 65 is pressed along the arc track of the arc block 121 to move downward, at this time, the vertical rod 651 fixedly connected to the bottom of the elliptical block 65 and the elliptical block 65 move downward synchronously, and then the vertical rod 651 moving downward pushes the diagonal rod 652 to swing downward around the connecting rod 653 as a center of a circle, and then the two second piston rods 654 fixedly connected to the connecting rod 653 slide into the corresponding second piston cylinders 61, and after the arc block 121 is far away from the elliptical block 65, the vertical rod 651 does not bear downward force any more, and then the diagonal rod 652 does not bear the pressure of the vertical rod 651, and then the second piston rod 654 does not bear the pushing force of the diagonal rod 652 any more, at this time, the second piston rod 654 slides out from the second piston cylinder 61 under the action of the fourth spring 611, and then the elliptical block 65 returns to the original position.

Locking mechanism still includes clamping ring 32, fixedly connected with guide arm 34 on the installation section of thick bamboo 1, seted up on the clamping ring 32 with guide arm 34 complex through-hole, the first limiting plate 341 of fixedly connected with on the guide arm 34, the cover has tied up second spring 342 on the guide arm 34, the both ends of second spring 342 offset with first limiting plate 341 and clamping ring 32 respectively, two mounting brackets 36 of fixedly connected with on the installation section of thick bamboo 1, two hydraulic stem 37 are fixed connection respectively on two mounting brackets 36, the output fixedly connected with tripod 35 of hydraulic stem 37, tripod 35 offsets with clamping ring 32, fixedly connected with platform piece 31 on the output shaft 3, clamping ring 32 is connected with ball 33, ball 33 internal rotation is rolling connection on the lateral wall of platform piece 31.

Referring to fig. 1, 2 and 5, the extrusion of the arc-shaped block 121 on the ring 12 to the oval block 65 can make the second piston rod 654 slide in the second piston cylinder 61 in a reciprocating manner, so that the second piston cylinder 61 draws the hydraulic oil in the box body 6 into the second piston cylinder 61 through the first pipeline 64, then the hydraulic oil drawn in the second piston cylinder 61 is conveyed into the hydraulic rod 37 through the second pipeline 62, and then the output end of the hydraulic rod 37 extends out, and the tripod 35 is extruded, so that the tripod 35 applies pressure to the press ring 32, so that the balls 33 on the press ring 32 can be tightly attached to the circular table block 31 on the output shaft 3, and because the press ring 32 and the mounting cylinder 1 are located on the same axis, the extrusion of the press ring 32 to the circular table block 31 can make the output shaft 3 maintain the coaxiality with the mounting cylinder 1, and improve the output precision of the output shaft 3.

Locking mechanism is last to be equipped with the cooling mechanism that is used for the interior machine oil cooling of rose box 5, cooling mechanism is including rotating the cylindrical cam 661 of connection on rose box 5, fixedly connected with pressure release pipe 621 on two second pipelines 62, pressure release pipe 621 fixed connection is on box body 6, be equipped with pressure valve 622 on the pressure release pipe 621, the hollow post 66 of fixedly connected with on the pressure release pipe 621, fixedly connected with changes board 662 on the cylindrical cam 661, it connects in hollow post 66 to change board 662 rotation, fixedly connected with blade 663 on the cylindrical cam 661, the side of blowing of blade 663 is towards rose box 5.

Referring to fig. 6 and 7, after the hydraulic rod 37 is filled with hydraulic oil, the hydraulic rod 37 does not extend any more, at this time, the second piston cylinder 61 still conveys hydraulic oil to the hydraulic rod 37 through the second pipe 62, so that the pressure in the second pipe 62 increases, when the pressure in the second pipe 62 increases to a threshold value set by the pressure valve 622, the pressure valve 622 opens, so that the hydraulic oil in the pressure relief pipe 621 flows, and impacts the rotating plate 662 in the hollow cylinder 66, so that the cylindrical cam 661 rotates, and the vane 663 fixedly connected to the cylindrical cam 661 rotates, so as to blow air to the filter box 5, so that the oil flowing through the filter box 5 can be cooled.

EXAMPLE III

On the basis of the second embodiment, a cleaning mechanism for cleaning metal chips in the filter box 5 is further arranged on the cooling mechanism, the cleaning mechanism comprises a scraper 52 which is slidably connected in the filter box 5, the scraper 52 is attached to the filter screen 51, a lantern ring 521 is fixedly connected to the scraper 52, the lantern ring 521 is sleeved on the cylindrical cam 661, a convex ball 522 is fixedly connected to the lantern ring 521, the convex ball 522 is slidably connected in a sliding groove in the cylindrical cam 661, the cleaning mechanism further comprises a block 53, a through groove matched with the block 53 is formed in the filter box 5, the scraper 52 intermittently abuts against the block 53, a rectangular plate 531 is fixedly connected to the block 53, a guide pillar 532 is fixedly connected to the filter box 5, a through hole matched with the guide pillar 532 is formed in the rectangular plate 531, a second limit plate 533 is fixedly connected to the guide pillar 532, a third spring 534 is sleeved on the guide pillar 532, two ends of the third spring 534 respectively abut against the rectangular plate 531 and the second limit plate 533, an electromagnet 54 is fixedly connected to the lower portion of the filter box 5, a pressure sensitive switch 542 and a pressure sensitive switch 542 for abutting against the plug 53, and a control electromagnet 541, a control switch 542 and a control switch 542.

Referring to fig. 7, 8 and 9, when the cylindrical cam 661 rotates, the convex ball 522 on the collar 521 can slide relatively to the sliding groove on the cylindrical cam 661 because the cylindrical cam 661 rotates on the filter box 5 with a fixed axis, and the scraper 52 is slidably connected to the filter box 5, the collar 521 is fixedly connected to the scraper 52, and further the rotation of the cylindrical cam 661 can make the collar 521 slide axially back and forth on the cylindrical cam 661, and further the scraper 52 fixedly connected to the collar 521 also slides axially back and forth, and the scraper 52 is attached to the filter screen 51, and further the scraper 52 sliding axially back and forth along with the collar 521 can scrape off the metal chips on the filter screen 51, the block 53 can contact the pressure sensitive switch when being pushed by the scraper 52, so that the electromagnet 54 is opened, and the metal chips scraped off are attracted by the electromagnet 54 and separated from the scraper 52, when the scraper 52 slides away from the block 53, the block 53 continues to block the filter box 5 under the action of the third spring 534, and simultaneously the block 53 contacts the pressure sensitive switch 542, and further the electromagnet 54 is no longer electrified to have magnetic shock, and further the metal chips fall off the filter box 535 when the scraper 52 slides on the filter box 535, and the inclined plate 535 is easily, and the filter box 535 is further, and the filter box 535 is not easily sucked by the inclined plate 54.

The working principle is as follows: this adjustable precision SPN type planetary gear reducer, in the time of using with the output that is connected to external motor with input shaft 2, the position of fixed installation section of thick bamboo 1 makes filter box 5 on the installation section of thick bamboo 1 be located the lower position, when input shaft 2 rotated drive gear 21 of fixed connection on input shaft 2 rotated, and then rotated with driven gear 22 that drive gear 21 meshed, because driven gear 22 meshes with annular tooth 11 in the installation section of thick bamboo 1, and then drive gear 21 can drive driven gear 22 when rotating and revolve with drive gear 21 as the centre of a circle in the installation section of thick bamboo 1, because driven gear 22 goes up fixedly connected's pivot 14 and follows driven gear 22 and revolve, and the both ends of pivot 14 respectively fixed axis rotation on ring 12 and planet carrier 13, and then ring 12 and planet carrier 13 can be driven by three revolving pivot 14 of revolution and rotate with the axis of installation section of thick bamboo 1 as the centre of a circle, and then the output shaft 3 that connects on planet carrier 13 rotates, make the rotational speed of output shaft 3 reduce and increase the moment of torsion simultaneously.

When the circular ring 12 rotates, the arc-shaped block 121 fixedly connected to the circular ring 12 rotates synchronously with the circular ring 12, the arc-shaped block 121 is in contact with the first piston rod 45 and the elliptical block 65 alternately, when the arc-shaped block 121 contacts the first piston rod 45, the bottom of the first piston rod 45 can move upwards along the track of the arc-shaped block 121, then the piston plate 451 fixedly connected to the first piston rod 45 moves upwards in the first piston cylinder 4, when the arc-shaped block 121 gradually leaves away from the first piston rod 45, the first piston plate 451 is pushed to slide downwards in the first piston cylinder 4 under the action of the first spring 452, the circular ring 12 rotates for a circle, so that the piston plate 451 slides in the first piston cylinder 4 in a reciprocating manner once, then the first piston cylinder 4 extracts the engine oil in the mounting cylinder 1 through the oil extracting pipe 43, then the extracted engine oil is re-injected into the mounting cylinder 1 through the oil injecting pipe 42, so that the engine oil can flow, the parts in the mounting cylinder 1 are lubricated, and when the engine oil in the mounting cylinder 1 passes through the oil extracting pipe 43, the filter box 5, so that the wear of the filter screen parts in the mounting cylinder 1 is avoided being aggravated.

When the arc-shaped block 121 on the circular ring 12 contacts the elliptical block 65 and continues to move, the elliptical block 65 is pressed along the arc-shaped track of the arc-shaped block 121 to move downward, at this time, the vertical rod 651 fixedly connected to the bottom of the elliptical block 65 and the elliptical block 65 move downward synchronously, and then the vertical rod 651 moving downward pushes the inclined rod 652 to swing downward around the connecting rod 653 as the center of a circle, and then the two second piston rods 654 fixedly connected to the connecting rod 653 slide into the corresponding second piston cylinders 61, and after the arc-shaped block 121 is far away from the elliptical block 65, the vertical rod 651 does not bear downward force any more, so that the inclined rod 652 is not stressed by the vertical rod 651 any more, and then the second piston rods 654 do not bear the thrust of the inclined rod 652 any more, at this time, the second piston rods 654 slide out from the second piston cylinders 61 under the action of the fourth spring 611, and then the elliptical block 65 returns to the original position, in conclusion, the extrusion of the elliptical block 65 by the arc-shaped block 121 on the ring 12 can enable the second piston rod 654 to slide in the second piston cylinder 61 in a reciprocating manner, so that the second piston cylinder 61 pumps the hydraulic oil in the box body 6 into the second piston cylinder 61 through the first pipeline 64, then the pumped hydraulic oil in the second piston cylinder 61 is conveyed into the hydraulic rod 37 through the second pipeline 62, and then the output end of the hydraulic rod 37 extends out to extrude the tripod 35, so that the tripod 35 applies pressure to the press ring 32, the balls 33 on the press ring 32 can cling to the circular table block 31 on the output shaft 3, and because the press ring 32 and the mounting cylinder 1 are located on the same axis, the extrusion of the press ring 32 to the circular table block 31 can enable the output shaft 3 to keep the same axis with the mounting cylinder 1, and the output precision of the output shaft 3 is improved;

when the hydraulic rod 37 is fully filled with hydraulic oil, the hydraulic rod 37 does not extend any more, at this time, the second piston cylinder 61 still conveys hydraulic oil to the hydraulic rod 37 through the second pipeline 62, so that the pressure in the second pipeline 62 is increased, when the pressure in the second pipeline 62 is increased to a critical value set by the pressure valve 622, the pressure valve 622 is opened, so that the hydraulic oil in the pressure relief pipe 621 flows, and impacts the rotating plate 662 in the hollow column 66, so that the cylindrical cam 661 rotates, and the vane 663 fixedly connected to the cylindrical cam 661 rotates to blow the filter box 5, so that the engine oil flowing through the filter box 5 can be cooled;

when the cylindrical cam 661 rotates, the convex balls 522 on the collar 521 can slide relatively relative to the sliding grooves on the cylindrical cam 661 because the cylindrical cam 661 rotates on the filtering box 5 in a fixed shaft mode, the scraper 52 is connected to the filtering box 5 in a sliding mode, the collar 521 is fixedly connected to the scraper 52, further the collar 521 can slide axially and reciprocally on the cylindrical cam 661 due to the rotation of the cylindrical cam 661, further the scraper 52 fixedly connected with the collar 521 also slides axially and reciprocally, the scraper 52 is attached to the filter screen 51, and then the scraper 52 which slides axially and reciprocally along with the collar 521 can scrape metal scraps on the filter screen 51;

meanwhile, the scraping plate 52 gradually approaches the blocking block 53 and presses the blocking block 53, so that the blocking block 53 can slide in a direction away from the filter box 5 by overcoming the elastic force of the third spring 534, then the scraping plate 52 pushes metal chips scraped from the filter screen 51 to the outside of the filter box 5, meanwhile, when the blocking block 53 is pushed by the scraping plate 52, the pressure sensitive switch 542 can be contacted, the electromagnet 54 is opened, the scraped metal chips are attracted by the electromagnet 54 and separated from the scraping plate 52, when the scraping plate 52 slides in the direction away from the blocking block 53, the blocking block 53 continues to block the filter box 5 under the action of the third spring 534, meanwhile, the blocking block 53 is not contacted with the pressure sensitive switch 542 any more, the electromagnet 54 is not electrified and has magnetism, and then the metal chips adsorbed by the electromagnet 54 fall onto the sloping plate 535 and slide along the sloping plate 535, and simultaneously, when the scraping plate 52 slides in the filter box 5, the filtering box 5 can slightly vibrate, and then the sloping plate 535 on the filter box 5 is vibrated, so that the metal chips on the sloping plate 535 slide more easily and cannot be sucked upwards by the electromagnet 54.

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

Claims

1. The utility model provides an adjustable precision SPN type planetary gear speed reducer, includes that built-in installation section of thick bamboo (1), input shaft (2) and output shaft (3) that have machine oil, its characterized in that: a circular ring (12) is rotationally connected to the mounting cylinder (1), three rotating shafts (14) are rotationally connected to the circular ring (12), driven gears (22) are fixedly connected to the three rotating shafts (14), a driving gear (21) is fixedly connected to the input shaft (2), the three driven gears (22) are meshed with the driving gear (21), annular teeth (11) meshed with the three driven gears (22) are arranged in the mounting cylinder (1), a planet carrier (13) is fixedly connected to the output shaft (3), the three rotating shafts (14) are rotationally connected with the planet carrier (13), the planet carrier (13) is located inside the mounting cylinder (1), a support (41) is fixedly connected to the mounting cylinder (1), a first piston cylinder (4) is fixedly connected to the support (41), a piston plate (451) is slidably connected to the first piston cylinder (4), a first piston rod (45) is fixedly connected to the piston plate (451), a first piston rod (45) is arranged on the mounting cylinder (1) and is provided with a hole matched with the first piston rod (45), a fixed ring (12) is provided on the circular ring (121), and an intermittent block (121) is connected with the first piston rod (45);

the oil pumping device is characterized in that a filtering mechanism used for filtering engine oil in the mounting cylinder (1) is arranged on the mounting cylinder (1), the filtering mechanism comprises a filtering box (5), an oil pumping pipe (43) and an oil filling pipe (42) are fixedly connected to the first piston cylinder (4), one end, far away from the first piston cylinder (4), of the oil pumping pipe (43) is fixedly connected to the mounting cylinder (1), one end, far away from the first piston cylinder (4), of the oil filling pipe (42) is fixedly connected to the mounting cylinder (1) and is located on the opposite side of the connection position of the mounting cylinder (1) and the oil pumping pipe (43), the filtering box (5) is fixedly connected to the oil pumping pipe (43), a filtering screen (51) is fixedly connected to the filtering box (5), a first one-way valve (44) is arranged on each of the oil pumping pipe (43) and the oil filling pipe (42), a first spring (452) is arranged in the first piston cylinder (4), and two ends of the first spring (452) are respectively abutted against the first piston cylinder (4) and the piston plate (451);

the locking mechanism used for fixing the coaxiality of the output shaft (3) and the mounting cylinder (1) is arranged on the filter box (5), the locking mechanism comprises two second piston cylinders (61) fixedly connected to the filter box (5), second piston rods (654) are connected to the two second piston cylinders (61) in a sliding manner, fourth springs (611) are placed in the second piston cylinders (61), two ends of each fourth spring (611) are respectively abutted to the second piston cylinders (61) and the second piston rods (654), elliptical blocks (65) are connected to the mounting cylinder (1) in a sliding manner, the arcuate blocks (121) are intermittently abutted to the elliptical blocks (65), vertical rods (651) are fixedly connected to the elliptical blocks (65), through holes matched with the vertical rods (651) are formed in the mounting cylinder (1), inclined rods (652) are connected to the vertical rods (651), connecting rods (653) are connected to the inclined rods (652) in a rotating manner, and second piston rods (654) are fixedly connected to the connecting rods (653);

the locking mechanism further comprises a box body (6) which is fixedly connected to the mounting cylinder (1) and is internally provided with hydraulic oil, a first pipeline (64) and a second pipeline (62) are fixedly connected to the two second piston cylinders (61), one ends, far away from the second piston cylinders (61), of the two first pipelines (64) are fixedly connected to the box body (6), one ends, far away from the second piston cylinders (61), of the two second pipelines (62) are fixedly connected with hydraulic rods (37), and second one-way valves (63) are arranged on the two first pipelines (64) and the two second pipelines (62);

locking mechanism still includes clamping ring (32), fixedly connected with guide arm (34) on installation section of thick bamboo (1), seted up on clamping ring (32) with guide arm (34) complex through-hole, the first limiting plate of fixedly connected with (341) is gone up in guide arm (34), the nook has second spring (342) on guide arm (34), the both ends of second spring (342) respectively with first limiting plate (341) with clamping ring (32) offset, two mounting bracket of fixedly connected with (36), two on installation section of thick bamboo (1) hydraulic stem (37) fixed connection is two respectively on mounting bracket (36), the output fixedly connected with tripod (35) of hydraulic stem (37), tripod (35) with clamping ring (32) offset, fixedly connected with round platform piece (31) on output shaft (3), clamping ring (32) internal rotation is connected with ball (33), ball (33) roll connection is in on the lateral wall of round platform piece (31).

2. An adjustable accuracy SPN-type planetary gear reducer according to claim 1, characterized in that: locking mechanism is last to be equipped with and to be used for doing the cooling mechanism of the interior machine oil cooling of rose box (5), cooling mechanism is connected including rotating cylinder cam (661) on rose box (5), two fixedly connected with pressure release pipe (621) is gone up in second pipeline (62), pressure release pipe (621) fixed connection is in on box body (6), be equipped with pressure valve (622) on pressure release pipe (621), fixedly connected with hollow post (66) on pressure release pipe (621), fixedly connected with commentaries on classics board (662) on cylinder cam (661), commentaries on classics board (662) rotate to be connected in hollow post (66), fixedly connected with blade (663) on cylinder cam (661), the side orientation of blowing of blade (663) rose box (5).

3. An adjustable accuracy SPN-type planetary gear reducer according to claim 2, characterized in that: be equipped with on the cooling mechanism and be used for the clearance mechanism of metal fillings in rose box (5), clearance mechanism includes sliding connection and is in scraper blade (52) in rose box (5), scraper blade (52) with filter screen (51) laminating, fixedly connected with lantern ring (521) on scraper blade (52), the lantern ring (521) cup joint on cylindrical cam (661), fixedly connected with convex ball (522) in the lantern ring (521), convex ball (522) sliding connection be in the spout on cylindrical cam (661).

4. An adjustable accuracy SPN-type planetary gear reducer as set forth in claim 3, wherein: the cleaning mechanism further comprises a blocking block (53), a through groove matched with the blocking block (53) is formed in the filter box (5), the scraping plate (52) is intermittently abutted against the blocking block (53), a rectangular plate (531) is fixedly connected to the blocking block (53), a guide post (532) is fixedly connected to the filter box (5), a through hole matched with the guide post (532) is formed in the rectangular plate (531), a second limiting plate (533) is fixedly connected to the guide post (532), a third spring (534) is sleeved on the guide post (532), two ends of the third spring (534) are respectively abutted against the rectangular plate (531) and the second limiting plate (533), an electromagnet (54) is fixedly connected to the lower portion of the blocking block (53) on the filter box (5), an inclined plate (535) is fixedly connected to the lower portion of the electromagnet (54) on the filter box (5), an L-shaped frame (5) is fixedly connected to the filter box (5), and a pressure-sensitive switch (541) and a pressure-sensitive switch (542) are used for controlling the intermittent switch (53) and the intermittent switch (542).