CN203756882U - Belt transmission mechanism - Google Patents

Belt transmission mechanism Download PDF

Info

Publication number
CN203756882U
CN203756882U CN201420191793.5U CN201420191793U CN203756882U CN 203756882 U CN203756882 U CN 203756882U CN 201420191793 U CN201420191793 U CN 201420191793U CN 203756882 U CN203756882 U CN 203756882U
Authority
CN
China
Prior art keywords
belt
planet wheel
wheel
belt pulley
gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420191793.5U
Other languages
Chinese (zh)
Inventor
张永红
谢信孚
李华林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan City Starlight Gearing Co Ltd
Original Assignee
Foshan City Starlight Gearing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foshan City Starlight Gearing Co Ltd filed Critical Foshan City Starlight Gearing Co Ltd
Priority to CN201420191793.5U priority Critical patent/CN203756882U/en
Application granted granted Critical
Publication of CN203756882U publication Critical patent/CN203756882U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides a belt transmission mechanism. The belt transmission mechanism comprises a belt wheel, a box, a main shaft and at least two planet wheels, wherein the belt wheel is driven by a motor; the box is arranged on one side of the belt wheel; the main shaft is connected on the belt wheel and the box in a rotatable and penetrating manner and is coaxial with the belt wheel; a first sun gear fixed together with the box is pivoted at one end of the main shaft and a second sun gear is synchronously connected with the other end of the main shaft; the first and second sun gears are respectively arranged on the two sides of the belt wheel; each planet wheel comprises a planet wheel shaft, a first planet wheel and a second planet wheel; the planet wheel shaft is connected on the belt wheel in a rotatable and penetrating manner; the first planet wheel is synchronously connected at one end of the planet wheel shaft and is meshed with the first sun gear; the second planet wheel is synchronously connected at the other end of the planet wheel shaft and is meshed with the second sun gear. The belt transmission mechanism has the beneficial effects that the diameter of the belt wheel does not need to be changed, so that the volume and occupied space of the transmission mechanism can not be increased and the potential safety hazards are reduced; meanwhile, higher speed ratio can be achieved by only adopting the common motor, thus the equipment cost is reduced.

Description

A kind of belt gear
Technical field
The utility model mechanical transmissioning technology field, is specifically related to a kind of belt gear.
Background technique
Present stage, normally utilize driven by motor belt pulley to provide the power of high speed rotating for lathe spindle, but, in Milling Processes, require main shaft to there is relatively low rotating speed, general high rotating speed main shaft can not be applicable to Milling Process, at present, for head it off, normally increase the diameter of belt pulley, change the rotating speed that rotating speed recently reduces main shaft, this mode is less to the improvement of original driving mechanism, structure is comparatively simple, cost is relatively low, but the adjusting of rotating ratio is quite limited, simultaneously, increase the diameter of belt pulley, make whole driving mechanism volume larger, the space taking is more, and there is larger potential safety hazard.
Also there are some producers to adopt frequency control motor to replace common electric machine, can not change under the prerequisite of diameter pulley, easily the adjustment of rotational speed of main shaft is arrived to needed size, but this for motor attached with frequency converters makes the cost of whole driving mechanism higher, and attached with frequency converters also needs to take certain space.
Model utility content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of belt gear, and it has larger velocity ratio, and take up room little, cost is low.
For achieving the above object, the utility model adopts following technological scheme:
A kind of belt gear, comprises,
By the belt pulley of driven by motor;
Be positioned at the casing of belt pulley one side;
Rotating cross-under main shaft on belt pulley and casing and coaxial with belt pulley, this main shaft one end is articulated with the first central gear, the other end being fixed together with casing synchronizes and is connected with one second central gear, the be placed in both sides of belt pulley of the first central gear and the second central gear;
At least two planetary gear set, each planetary gear set includes the planet wheel shaft of a rotating cross-under on belt pulley, is synchronously connected in planet wheel shaft one end and the first row star-wheel, the second planet wheel that is connected in the planet wheel shaft the other end and engages with the second central gear of synchronizeing with the first central gear engagement.
The both sides of belt pulley are respectively arranged with a recess, and the first row star-wheel and the second planet wheel are embedded at respectively in two recess.
The first central gear is connected on casing by screw is dismountable.
This belt gear comprises three planetary gear set around belt pulley central axis circumference array.
The beneficial effects of the utility model are:
Than prior art, the utility model, without the diameter that changes belt pulley, just can not increase the volume of driving mechanism and shared space yet, reduce potential safety hazard, meanwhile, only need to adopt common motor can realize larger rotating ratio, reduce equipment cost.
Brief description of the drawings
Fig. 1 is scheme of installation of the present utility model;
Fig. 2 is sectional view of the present utility model;
Wherein: 10, belt pulley; 11, recess; 12, recess; 20, main shaft; 30, casing; 41, the first central gear; 42, the second central gear; 51, the first row star-wheel; 52, the second planet wheel; 53, planet wheel shaft.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further:
As Fig. 1, shown in 2, for a kind of belt gear of the present utility model, it comprises belt pulley 10, casing 30, main shaft 20 and three planetary gear set, wherein, belt pulley 10 is by a driven by motor, casing 30 is positioned at a side of belt pulley 10, the rotating cross-under of main shaft 20 is on belt pulley 10 and casing 30, and this main shaft 20 is connected with belt pulley 10 and casing 30 by a bearing respectively, belt pulley 10 is coaxial with main shaft 20, , main shaft 20 can rotate with respect to belt pulley 10 and casing 30 around its central axis, main shaft 20 is articulated with one first central gear 41 near one end of casing 30, synchronously be connected with one second central gear 42 away from one end of casing 30, the first central gear 41 and the second central gear 42 are placed in respectively the both sides of belt pulley 10, wherein, the first central gear 41 is fixedly connected on casing 30.Each above-mentioned planetary gear set includes the planet wheel shaft 53 of a rotating cross-under on belt pulley 10, is synchronously connected in planet wheel shaft 53 near the first row star-wheel 51 of casing 30 one end and is synchronously connected in second planet wheel 52 of planet wheel shaft 53 away from casing 30 one end, wherein, the first row star-wheel 51 engages with the first central gear 41, and the second 52 of planet wheels engage with the second central gear 42.
In above-mentioned structure, belt pulley is as the planet carrier of whole planetary mechanism, it rotates under the drive of motor, by transmission of power to three planet wheel shaft 53, these three planet wheel shafts 53 rotate around the central shaft of belt pulley 10, because the first central gear 41 and the first row star-wheel 51 engage, when the first row star-wheel 51 rotates along with planet wheel shaft 53, planet wheel shaft 53 can be around the central axis rotation of himself, thereby make the second planet wheel 52 when belt pulley 10 central shafts rotate, also around self axis rotation, finally, power transmission is given the second central gear 42 by three the second planet wheels 52, by transmission of power to main shaft 20, and said mechanism can realize deceleration, as long as change above-mentioned the first row star-wheel 51, the second planet wheel 52, the number of teeth of the first central gear 41 and the second central gear 42, just can change accordingly the rotating speed of main shaft 20 final outputs.It just can not increase the volume of driving mechanism and shared space without the diameter that changes belt pulley 10 yet, has reduced potential safety hazard, meanwhile, only need to adopt common motor can realize larger rotating ratio, has reduced equipment cost.
The space taking in order further to reduce whole driving mechanism, recess 11 and recess 12 can be set respectively in the both sides of belt pulley, the first row star-wheel 51 and the second planet wheel 52 are embedded at respectively in recess 11 and recess 12, thereby can reduce the axial dimension of driving mechanism.
For the ease of adjusting rotating ratio, the first above-mentioned central gear 41 can be to be fixed on casing 30 by screw is dismountable, thereby can change easily the first central gear 41 of the different numbers of teeth.
Here it should be noted that, such scheme adopts three planetary gear set, it can ensure the comparatively operation of balance of whole mechanism, in fact, large in order to reach the utility model velocity ratio, the object little, cost is low that takes up room, can be also to adopt two planetary gear set, certainly, the quantity of planetary gear set can be to be also greater than three.
to one skilled in the art, can be according to technological scheme described above and design, make other various corresponding changes and deformation, and within these all changes and deformation all should belong to the protection domain of the utility model claim.

Claims (4)

1. a kind of belt gear, is characterized in that, comprises,
by the belt pulley of driven by motor;
be positioned at the casing of belt pulley one side;
rotating cross-under main shaft on belt pulley and casing and coaxial with belt pulley, this main shaft one end is articulated with the first central gear, the other end being fixed together with casing synchronizes and is connected with one second central gear, the be placed in both sides of belt pulley of the first central gear and the second central gear;
at least two planetary gear set, each planetary gear set includes the planet wheel shaft of a rotating cross-under on belt pulley, is synchronously connected in planet wheel shaft one end and the first row star-wheel, the second planet wheel that is connected in the planet wheel shaft the other end and engages with the second central gear of synchronizeing with the first central gear engagement.
2. belt gear as claimed in claim 1, is characterized in that, the both sides of belt pulley are respectively arranged with a recess, and the first row star-wheel and the second planet wheel are embedded at respectively in two recess.
3. belt gear as claimed in claim 1, is characterized in that, the first central gear is connected on casing by screw is dismountable.
4. belt gear as claimed in claim 1, is characterized in that, this belt gear comprises three planetary gear set around belt pulley central axis circumference array.
CN201420191793.5U 2014-04-18 2014-04-18 Belt transmission mechanism Expired - Fee Related CN203756882U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420191793.5U CN203756882U (en) 2014-04-18 2014-04-18 Belt transmission mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420191793.5U CN203756882U (en) 2014-04-18 2014-04-18 Belt transmission mechanism

Publications (1)

Publication Number Publication Date
CN203756882U true CN203756882U (en) 2014-08-06

Family

ID=51252162

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420191793.5U Expired - Fee Related CN203756882U (en) 2014-04-18 2014-04-18 Belt transmission mechanism

Country Status (1)

Country Link
CN (1) CN203756882U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104315099A (en) * 2014-09-29 2015-01-28 苏州蓝王机床工具科技有限公司 Integrated power transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104315099A (en) * 2014-09-29 2015-01-28 苏州蓝王机床工具科技有限公司 Integrated power transmission system

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140806

Termination date: 20160418