CN200975449Y

CN200975449Y - Controllable Gear changes

Info

Publication number: CN200975449Y
Application number: CN 200620130533
Authority: CN
Inventors: 王得胜; 周爱平
Original assignee: Henan University of Technology
Current assignee: Henan University of Technology
Priority date: 2006-11-22
Filing date: 2006-11-22
Publication date: 2007-11-14
Anticipated expiration: 2016-11-22

Abstract

The utility model discloses a controllable speed changing device, wherein, a main electric motor, a hydraulic motor and an output shaft are arranged on the outer part of a machine case. The main electric motor is connected with the output shaft through a shaft coupling device. A drive gear wheel is fixedly arranged on the output shaft and is joggled with a driven gear wheel that is fixedly arranged on a driven shaft, and the driven shaft is fixedly assembled with a central wheel through a sleeve cylinder shaft coupling device. An inner gear wheel, a planet gear wheel, a central wheel and a planet carrier jointly form a planet drive mechanism. The planet carrier is fixedly connected with the output shaft. The hydraulic motor is connected with a worm through the speed changing mechanism shaft coupling device. The worm is joggled with a worm wheel that is fixedly assembled with the inner gear wheel. The sleeve cylinder, the planet and the output shaft are fixedly assembled to be integration. The output shaft is provided with a front bearing and the sleeve cylinder is provided with a back bearing to form a supporting beam structure for the cylinder. The utility model has the advantages of high efficiency, large delivery torque and easy, convenient speed adjustment.

Description

The variable speed controllable device

Technical field:

The utility model belongs to the speed Control technical field.

Background technique:

The variable speed controllable device is the speed change gear that is used for big inertia working machine.Existing similar products mainly are the CST of the U.S..The core technology of CST is with the sticking transmission of liquid and the planetary pinion transmission realization variable speed controllable that combines.Though the CST function admirable is made complicatedly, and the sticking transmission of liquid is by the viscosity transmitting movement of liquid and power, needs to use special-purpose lubricant oil, and to the performance requirement height of fluid, the accuracy of manufacturing of component requires high, and price is also high.Its output shaft is that cantilever is installed in addition, and planetary pinion and central gear and internal gear are easy to generate bad connection, cause the load distribution inequality, reduce working life.

The model utility content:

The purpose of this utility model provides a kind of efficient height, transmitting torque is big, speed governing is convenient, variable speed controllable device stably continuously.

To achieve these goals, the utility model comprises: main motor, input shaft, driving gear, oil hydraulic motor, worm screw, internal gear, planetary pinion, central gear, planet carrier, output shaft, sleeve, worm gear, driven gear, driven shaft, cabinet, main motor, oil hydraulic motor, output shaft is installed in the outside of cabinet, main motor is connected with input shaft by coupling, driving gear fixedly is assemblied on the input shaft and with driven gear and is meshed, driven gear fixedly is assemblied on the driven shaft, driven shaft is assembled together by box coupling and central gear, internal gear, planetary pinion, central gear and planet carrier constitute epicyclic transmission mechanism, planet carrier and output shaft are fixed together, oil hydraulic motor links together by gear coupling and worm screw, worm and wheel is meshed, worm gear and internal gear fixedly are assembled together, sleeve, planet carrier and output shaft fixedly are assembled into an integral body, output shaft is provided with fore bearing, sleeve is provided with rear bearing, forms simple beam structure.

Like this, when specified running state, oil hydraulic motor does not rotate, because there are self-locking property in worm screw, worm drive, worm screw is braked internal gear by worm gear, and main motor will move by coupling and pass to the input shaft at driving gear place with moment, pass to the central gear of epicyclic transmission mechanism again by driving gear, driven gear, box coupling, make three planetary pinions drive output shaft and rotate by planet carrier, thus output movement and moment.When the speed governing operation state, the oil hydraulic motor rotating speed changes by given rule, drives worm screw by the gear coupling and drives the worm gear rotation, rotates thereby drive internal gear; Meanwhile, the rotation of main motor is passed to the central gear of epicyclic transmission mechanism by coupling, input shaft, driving gear, driven gear, driven shaft, box coupling, and two rotations are by epicyclic transmission mechanism synthetic back output.Because the rotating speed of main motor is constant, so the rotating speed of output shaft changes with the oil hydraulic motor change in rotational speed, the rotating speed that changes oil hydraulic motor just can be realized the change to the output shaft rotating speed, thereby realizes variable speed controllable.The contact condition of planetary pinion and central gear and internal gear is good, because epicyclic transmission mechanism is arranged on the back of reduction gears mechanism, in the time of can effectively avoiding transshipping gear mechanism be produced excessive stress impact, help prolonging the life-span of gear and relevant driving component, have characteristics such as efficient height, transmitting torque is big, speed governing is convenient.

Description of drawings:

Below in conjunction with accompanying drawing the utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model.

Embodiment:

As shown in Figure 1, the utility model comprises: main motor 1, input shaft 3, driving gear 4, oil hydraulic motor 6, worm screw 7, internal gear 8, planetary pinion 9, central gear 10, planet carrier 11, output shaft 12, sleeve 14, worm gear 15, driven gear 18, driven shaft 19, cabinet 20.Main motor 1, oil hydraulic motor 6, output shaft 12 are installed in the outside of cabinet 20.Main motor 1 is connected with input shaft 3 by coupling 2, and driving gear 4 fixedly is assemblied on the input shaft 3 and with driven gear 18 and is meshed, and driven gear 18 fixedly is assemblied on the driven shaft 19, and driving gear and driven gear constitute primary gear speed reducing mechanism.Driven shaft 19 is assembled together by box coupling 16 and central gear 10 and makes central gear 10 be in quick condition, and internal gear 8, planetary pinion 9, central gear 10 and planet carrier 11 constitute epicyclic transmission mechanism, and planet carrier 11 is fixed together with output shaft 12.Oil hydraulic motor 6 links together by gear coupling 5 and worm screw 7, worm screw 7 is meshed with worm gear 15, worm gear 15 fixedly is assembled together with internal gear 8, and when oil hydraulic motor 6 drove worm screw 7 rotations by gear coupling 5, worm gear 15 can drive internal gear 8 and rotate.Sleeve 14, planet carrier 11 and output shaft 12 fixedly are assembled into an integral body, and output shaft 12 is provided with fore bearing 13, and sleeve 14 is provided with rear bearing 17, form simple beam structure.Two bearings adopts tapered roller or double-row self-aligning bearing to be advisable.If driving gear 4 adopts cylindrical gears with driven gear 18, input shaft 3 is parallel with output shaft 12, then is called parallel-axis type variable speed controllable device; If driving gear 4 adopts cone gears with driven gear 18, input shaft 3 and output shaft 12 can be designed to orthogonally, then be called perpendicular axis type variable speed controllable device.This is suitable for the novel big I of specification and is designed to series product as required.

Claims

1, a kind of variable speed controllable device, comprise: main motor (1), input shaft (3), driving gear (4), oil hydraulic motor (6), worm screw (7), internal gear (8), planetary pinion (9), central gear (10), planet carrier (11), output shaft (12), sleeve (14), worm gear (15), driven gear (18), driven shaft (19), cabinet (20), main motor (1), oil hydraulic motor (6), output shaft (12) is installed in the outside of cabinet (20), main motor (1) is connected with input shaft (3) by coupling (2), driving gear (4) fixedly is assemblied in input shaft (3) and upward and with driven gear (18) is meshed, driven gear (18) fixedly is assemblied on the driven shaft (19), driven shaft (19) is assembled together by box coupling (16) and central gear (10), internal gear (8), planetary pinion (9), central gear (10) and planet carrier (11) constitute epicyclic transmission mechanism, planet carrier (11) is fixed together with output shaft (12), it is characterized in that oil hydraulic motor (6) links together by gear coupling (5) and worm screw (7), worm screw (7) is meshed with worm gear (15), worm gear (15) fixedly is assembled together with internal gear (8), sleeve (14), planet carrier (11) and output shaft (12) fixedly are assembled into an integral body, output shaft (12) is provided with fore bearing (13), sleeve (14) is provided with rear bearing (17), forms simple beam structure.