CN109944930A

CN109944930A - A kind of gear-box

Info

Publication number: CN109944930A
Application number: CN201711379213.XA
Authority: CN
Inventors: 宋丽芸
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-20
Filing date: 2017-12-20
Publication date: 2019-06-28

Abstract

The present invention provides a kind of gear-boxes, belong to gear-box technical field；It solves in the prior art that gearbox speed reduction effect is poor, torque is smaller, the load capacity of output shaft is poor, the ineffective technical problem of gear-box；The technical solution of the present invention is as follows: a kind of gear-box, reduction gear box, gear reduction in power output shaft and reduction gear box, the gear reduction includes the gear one for successively engaging connection, gear two, gear three, eccentric gear group is provided on the power output shaft, the eccentric gear group includes the gear four that middle part is provided with through-hole, the PTO drive disk and three's eccentric setting for engaging the gear five of connection with gear four and being connect with gear four, said gear three is connect with four interference of gear, PTO drive disk is set on power output shaft and power output shaft can be driven to rotate；Have the beneficial effect that structure is more compact, retardation efficiency enhancing, gear-box torque increases, and work efficiency is high.

Description

A kind of gear-box

Technical field

The invention belongs to gear-box technical fields, are related to a kind of gear-box.

Background technique

The a part of reduction gear box as decelerating motor, it is very widely used, belong to indispensable on gearing Power-equipment, be usually used in steel industry, machinery industry etc., especially in printing machinery, corrugated machine, package packing machine, conveying In the equipment such as machinery, food machinery, color box be mechanical, automatic stored, tiered warehouse facility, weaving, chemical industry.

Under the major premise of electromechanical integration, decelerating motor currently on the market is gradually intended to motor and gear box combination It uses, engages and utilize original gear-box internal multi-stage gear with the gear inside gear-box by the input shaft using motor The characteristics of transmission or turbine worm are driven achievees the purpose that deceleration, and existing reduction gearbox for electrical motor generally comprises gear-box case Body, the end cap and gear reduction matched with cabinet, are formed with accommodating chamber, The gear deceleration between gear case body and end cap Mechanism is arranged in accommodating chamber, and gear reduction has multiple stage gear reduction, and gear structure is lubricated by lubricating oil, tooth Wheel box body and end cap are mounted by means of bolts on together, but this gear-box there is a problem of one it is more universal: gear Case retardation efficiency is lower, and since slowing effect is poor, the torque of gear-box is also relatively small, therefore the load capacity of output shaft Difference, if to increase the torque of gear-box, increases the load energy of output shaft to directly influence the working efficiency of gear-box Power, it is necessary to increase the gear quantity inside gear-box to enhance slowing effect, and certainly will increase in this way gear-box volume and Weight, cost are also relatively large.

Summary of the invention

It is a kind of compact-sized the purpose of the present invention is in view of the above-mentioned problems existing in the prior art, proposing, subtract in raising It can increase the gear-box of torque while quick-acting rates again.

The purpose of the present invention can be achieved through the following technical solutions: a kind of gear-box, including be made of upper cover and bottom cover And be fixedly connected with motor reduction gear box, be mounted in reduction gear box and output end stretch out upper cover other than power output Axis and the gear reduction being mounted in reduction gear box, motor output shaft protrude into reduction gear box, and the gear subtracts Fast mechanism include the gear one being fixed on motor output shaft, be set on the needle shaft for being fixed on bottom cover and with one company of engagement of gear The gear two connect, the gear three for being set on power output shaft and engaging connection with gear two, it is characterised in that: the power is defeated Eccentric gear group is additionally provided on shaft, the eccentric gear group includes that middle part is provided with the gear four of through-hole, engages with gear four The gear five of connection and the PTO drive disk being connect with gear four and three's eccentric setting, said gear three and four interference of gear Connection, PTO drive disk are set on power output shaft and power output shaft can be driven to rotate.

In a kind of above-mentioned gear-box, the gear five is the external gear that internal diameter is greater than four outer diameter of gear, and the power is defeated It is fixedly connected with internal axle sleeve in the middle part of placing and PTO drive disk and internal axle sleeve eccentric setting, the gear four are sheathed on internal axle sleeve It is upper and connect with internal axle sleeve interference, the axially extending geared sleeve out of said gear three and internal axle sleeve is connect with geared sleeve interference.

In a kind of above-mentioned gear-box, the top edge of the PTO drive disk extends outward several fixed columns, institute The edge for stating gear four is provided with to be adapted and internal diameter is greater than the fixation hole of fixed column outer diameter with fixed column, and the fixed column can be The rotation of fixation hole inner circumferential.

In a kind of above-mentioned gear-box, the connecting pin of power output shaft is provided with the axis hole for extending transversely through axle body and can wear The pin shaft of axis hole is crossed, the pin groove that is adapted and can accommodate pin shaft with pin shaft is provided on the bottom surface of the PTO drive disk.

In a kind of above-mentioned gear-box, be provided with axial step shape accommodating chamber in the bottom cover, including accommodating chamber one and The accommodating chamber two extended in the middle part of accommodating chamber one is provided with centre bore in accommodating chamber two, and above-mentioned PTO drive disk is placed in receiving In chamber two, the connecting pin of above-mentioned power output shaft passes through centre bore and stretches out other than bottom cover, after above-mentioned pin shaft passes through power output shaft It rests on the bottom surface of accommodating chamber two.

In a kind of above-mentioned gear-box, the outer peripheral edge of the gear five it is axially extending go out several fixed blocks, above-mentioned accommodating chamber One surface is provided with fixing groove compatible with fixed block, and fixed block, which is mounted in fixing groove, makes gear five be fixed on accommodating chamber one It is interior.

Compared with prior art, the invention has the benefit that by the setting-up eccentricity gear set in reduction gear box, tooth It is more compact to take turns box structure, also enhances reduction gear box internal reduction efficiency, slowing effect more preferably, gear-box torque also phase To increase, the load capacity of power output shaft enhances, so that the whole work efficiency of reduction gear box is higher.

Detailed description of the invention

Fig. 1 is a kind of schematic perspective view of gear-box of the present invention.

Fig. 2 is a kind of internal structure floor map of gear-box of the present invention.

Fig. 3 is a kind of front decomposition diagram of gear-box of the present invention.

Fig. 4 is a kind of back side decomposition diagram of gear-box of the present invention.

In figure, 1, motor；2, reduction gear box；21, upper cover；22, bottom cover；23, accommodating chamber one；24, accommodating chamber two；25, Fixing groove；26；Centre bore 3, power output shaft；31, axis hole；32, pin shaft；4, gear one；5, gear two；51, needle shaft；6, gear Three；61, geared sleeve；7, gear four；71, fixation hole；8, gear five；81, fixed block；9, PTO drive disk；91, fixation hole；92, Pin groove；10, internal axle sleeve.

Specific embodiment

Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.

As shown in Figures 1 to 4, a kind of gear-box of the present invention, including be made of upper cover 21 and bottom cover 22 and fixed with motor 1 The reduction gear box 2 of connection, be mounted in reduction gear box 2 and output end stretch out power output shaft 3 other than upper cover 21 and The gear reduction being mounted in reduction gear box 2, motor output shaft protrude into reduction gear box 2, the gear reduction unit Structure includes the gear 1 being fixed on motor output shaft, is set on the needle shaft 51 for being fixed on bottom cover 22 and engages with gear 1 The gear 25 of connection, the gear 36 for being set on power output shaft 3 and engaging connection with gear 25, the power output shaft 3 On be additionally provided with eccentric gear group, the eccentric gear group include middle part be provided with through-hole gear 47, with 47 company of engagement of gear The gear 58 connect and the PTO drive disk 9 being connect with gear 47 and three's eccentric setting, said gear 36 and gear 47 Interference connection, PTO drive disk 9 are set on power output shaft 3 and power output shaft 3 can be driven to rotate.

By the setting-up eccentricity gear set in reduction gear box, it is defeated that eccentric gear group with gear 36 is mounted on power simultaneously On shaft 3, external gear 47 is overlapped with internal gear 58, after increasing eccentric gear group, gear-box inner space without compared with Big variation, therefore gear box structure is more compact；After setting-up eccentricity gear set, the retarding stage of entire gear-box is from original two-stage Increase level Four, increase reduction ratio, enhance reduction gear box retardation efficiency, gear-box torque is also opposite to be increased, power output The load capacity of axis enhances, so that the whole work efficiency of reduction gear box is higher.

Gear 58 is the external gear that internal diameter is greater than 47 outer diameter of gear, and the middle part of the PTO drive disk 9 is fixedly connected with Internal axle sleeve 10 and PTO drive disk 9 and 10 eccentric setting of internal axle sleeve, the gear 47 is sheathed on internal axle sleeve 10 and and internal axle sleeve 10 interference connection, said gear 36 it is axially extending go out geared sleeve 61 and internal axle sleeve 10 connect with 61 interference of geared sleeve；Power output The top edge of disk 9 extends outward several fixed columns 91, and the edge of the gear 47 is provided with to be adapted with fixed column 91 And internal diameter is greater than the fixation hole 71 of 91 outer diameter of fixed column, the fixed column 91 can be rotated in 71 inner circumferential of fixation hole；Due to power Output panel 9 and 10 eccentric setting of internal axle sleeve can make PTO drive disk 9 certainly when gear 36 rotates on power output shaft 3 It is had enough to meet the need while turning, to make rotation and the turnover simultaneously in fixation hole 71 of the fixed column 91 on PTO drive disk 9, when solid When fixed column 91 has enough to meet the need in fixation hole 71, fixed column 91 circles on the hole wall of fixation hole 71, makes the external tooth of gear 47 With the internal tooth engaged transmission of gear 58, the geard-down speed for then accelerating gear-box is formed, retardation efficiency is increased.

The connecting pin of power output shaft 3 is provided with the axis hole 31 for extending transversely through axle body and can pass through the pin shaft of axis hole 31 32, the pin groove 92 that pin shaft 32 is adapted and can accommodated with pin shaft 32, pin shaft 32 are provided on the bottom surface of the PTO drive disk 9 It is horizontally through axis hole 31 to be finally fixed on the pin groove 92 of 9 bottom surface of PTO drive disk, so that PTO drive disk 9 is in the same of rotation When drive power output shaft 3 rotate, finally transfer force on dynamic power output shaft 3.

It is provided with axial step shape accommodating chamber in bottom cover, extends including accommodating chamber 1 and one 23 middle part of accommodating chamber Accommodating chamber 2 24 is provided with centre bore 26 in accommodating chamber 2 24, and above-mentioned PTO drive disk 9 is placed in accommodating chamber 2 24, above-mentioned The connecting pin of power output shaft 3 passes through centre bore 26 and stretches out other than bottom cover 22, and above-mentioned pin shaft 32 rests on after passing through power output shaft 3 On the bottom surface of accommodating chamber 2 24, axial step shape accommodating chamber makes PTO drive disk 9 and gear 47, gear 58 be respectively placed in appearance It receives in chamber 2 24 and accommodating chamber 1, reduces the spare space inside gear-box, so that gear box structure is more compact.

The axially extending several fixed blocks 81 out in the outer peripheral edge of gear 58, above-mentioned one 23 surface of accommodating chamber are provided with and fix The compatible fixing groove 25 of block 81, fixed block 81, which is mounted in fixing groove, is fixed on gear 58 in accommodating chamber 1, gear five 8 are fixed in accommodating chamber 1, so that resistance reaches maximum value when 58 engaged transmission of gear 47 and gear, are effectively increased Gear 47 and 58 slowing effect of gear.

Show that the working principle of this gear-box is as follows by above-described embodiment: band moving gear 1 rotates after motor 1 is powered, tooth It takes turns 1 and engages connection with gear 25 and form the first order with the rotation of moving gear 25 and slow down；Gear 25 and 36 company of engagement of gear It connects and forms the second level with the rotation of moving gear 36 and slow down；Gear 36 is connect with 10 interference of internal axle sleeve, internal axle sleeve 10 and and power Output panel 9 is eccentric to be connected, therefore gear 36 drives PTO drive disk 9 to rotate, the rotation simultaneously on gear 47 of PTO drive disk 9 The third level is formed with turnover to slow down；Gear 47 can have enough to meet the need shape on 58 internal gear of gear while rotation due to wobbler action Slow down at the fourth stage, the output revolving speed of motor 1 is preferably minimized by gear-box at this time, due to PTO drive disk 9 and power output shaft 3 It is fixedly connected by pin shaft 32, therefore the revolving speed of last power output shaft 3 is minimum speed, since retardation efficiency enhances, gear Case torque increases, the load capacity enhancing of power output shaft, and the whole work efficiency of reduction gear box is higher.

Specific embodiment described herein is only an example for the spirit of the invention, the neck of technology belonging to the present invention The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.

Claims

1. a kind of gear-box, including the reduction gear box for being constituted and being fixedly connected with motor (1) by upper cover (21) and bottom cover (22) (2), it is mounted on power output shaft (3) that in reduction gear box (2) and output end stretches out other than upper cover (21) and is mounted on and subtract Gear reduction in fast gear-box (2), motor output shaft protrude into reduction gear box (2), the gear reduction packet Include the gear one (4) being fixed on motor output shaft, be set on the needle shaft (51) for being fixed on bottom cover (22) and with gear one (4) The gear three (6) for engaging the gear two (5) of connection, being set on power output shaft (3) and engaging connection with gear two (5), It is characterized in that: being additionally provided with eccentric gear group on the power output shaft (3), the eccentric gear group includes that middle part is provided with through-hole Gear four (7), the PTO drive disk (9) that engages with gear four (7) gear five (8) of connection and connect with gear four (7) And three's eccentric setting, the gear five (8) are the external gear that internal diameter is greater than gear four (7) outer diameter, the PTO drive disk (9) Middle part be fixedly connected with internal axle sleeve (10) and PTO drive disk (9) and internal axle sleeve (10) eccentric setting, gear four (7) set It is connect on internal axle sleeve (10) and with internal axle sleeve (10) interference, said gear three (6) is axially extending geared sleeve (61) and interior out Axle sleeve (10) is connect with geared sleeve (61) interference, and said gear three (6) is connect with gear four (7) interference, PTO drive disk (9) set It is located on power output shaft (3) and power output shaft (3) can be driven to rotate.

2. gear-box according to claim 1, it is characterised in that；The top edge of the PTO drive disk (9) is to extension Stretch out several fixed columns (91), the edge of the gear four (7) be provided be adapted with fixed column (91) and internal diameter be greater than it is solid The fixation hole (71) of fixed column (91) outer diameter, the fixed column (91) can rotate in fixation hole (71) inner circumferential.

3. gear-box according to claim 2, it is characterised in that；The connecting pin of power output shaft (3), which is provided with, laterally to be passed through It wears the axis hole (31) of axle body and the pin shaft (32) of axis hole (31) can be passed through, be provided on the bottom surface of the PTO drive disk (9) The pin groove (92) of pin shaft (32) is adapted and can accommodated with pin shaft (32).

4. gear-box according to claim 3, it is characterised in that；Axial step shape accommodating chamber is provided in the lower cover, Including the accommodating chamber two (24) extended in the middle part of accommodating chamber one (23) and accommodating chamber one (23), it is provided in accommodating chamber two (24) Centre bore (26), above-mentioned PTO drive disk (9) are placed in accommodating chamber two (24), and the connecting pin of above-mentioned power output shaft (3) is worn It crosses centre bore (26) to stretch out other than bottom cover (22), above-mentioned pin shaft (32) rests on accommodating chamber two (24) after passing through power output shaft (3) Bottom surface on.

5. gear-box according to claim 4, it is characterised in that；The gear five (8) if outer peripheral edge it is axially extending go out Dry fixed block (81), above-mentioned accommodating chamber one (23) surface are provided with and fixed block (81) compatible fixing groove (25), fixed block (81) being mounted in fixing groove is fixed on gear five (8) in accommodating chamber one (23).