CN204459050U - A kind of speed changer - Google Patents
A kind of speed changer Download PDFInfo
- Publication number
- CN204459050U CN204459050U CN201520065219.XU CN201520065219U CN204459050U CN 204459050 U CN204459050 U CN 204459050U CN 201520065219 U CN201520065219 U CN 201520065219U CN 204459050 U CN204459050 U CN 204459050U
- Authority
- CN
- China
- Prior art keywords
- elongated hole
- driving disc
- gear
- screw mandrel
- base plate
- 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.)
- Withdrawn - After Issue
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Abstract
Speed changer relates to a kind of stepless speed changes devices.Be mainly the problems such as mechanical loss is larger in existing stepless speed variator transmission process that solve to design.It comprises base plate, shell, and the pto＝power take-off bottom internal gear to be arranged on base plate by bearing and to stretch out from base plate, and external gear is arranged on transmission shaft by unilateral bearing, and the external gear on each transmission shaft all engages with internal gear; Have axial elongated hole lead moving plate and transmission shaft is connected and fixed; Driving disc is arranged on case top by needle bearing, elongated hole hole wall on driving disc there is slideway, the slide block at speed control rod top is placed in the slideway of driving disc, and speed control rod interts respectively leading in the elongated hole on moving plate, and slide block and screw mandrel are connected and fixed, the screw mandrel screw mandrel be located on driving disc is installed in passage, driving disc also has gear rack install elongated hole, gear is connected with wire rod thread, and tooth bar is located at gear rack and installs in elongated hole, rack and pinion engages, and speed regulation wrench is arranged at tooth bar top.Advantage is that power loss is few.
Description
Technical field:
The utility model relates to a kind of stepless speed changes devices, and its one end is connected with power source, the other end outputting power.
Background technique:
Stepless speed variator adopts driving belt and the variable driven wheel of working diameter to match incompatible transferring power, can realize continuously changing of velocity ratio, thus obtain the optimum Match of power train and motor working condition.Existing stepless speed variator is in transmission process, and mechanical loss is comparatively large, and its input end and output terminal can not Complete Synchronizations, and power loss is large, also needs the cooperation of clutch.
Summary of the invention:
It is little that technical problem to be solved in the utility model is to provide a kind of mechanical loss, and input end and output terminal can be synchronous, and power loss is little, without the need to the speed changer that clutch engagement uses.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
It comprises base plate, outer casing bottom and base plate surrounding are connected and fixed, several highly different transmission shafts and an internal gear is had in shell, described internal gear is located in the middle part of base plate, the bottom of internal gear is connected with pto＝power take-off, described pto＝power take-off to be arranged on base plate by bearing and to stretch out from base plate, several described transmission shafts are located at the surrounding of internal gear, several transmission shafts are all arranged on base plate respectively by respective bearing, each transmission shaft there is an external gear, each external gear is arranged on each transmission shaft respectively by unilateral bearing, namely the outer ring of unilateral bearing is fixed on external gear inwall, the inner ring of unilateral bearing is fixed on transmission shaft, external gear on each transmission shaft all engages with internal gear,
Also comprise and identical with transmission shaft quantity lead moving plate, each leading on moving plate has axial elongated hole, and the opening of elongated hole is positioned at the front end of leading moving plate;
The upper end of described rear end and each transmission shaft of respectively leading moving plate is connected and fixed, because each transmission shaft height is different, so on each transmission shaft to lead moving plate top-bottom cross overlapping, during installation, lead the front end of moving plate in the middle part of base plate;
Also comprise driving disc, the bottom of driving disc is arranged on case top by needle bearing, driving disc there is the elongated hole offering edge from the center of circle, two elongated hole walls of described elongated hole all have axial slideway, speed control rod top is fixed with slide block, the slide block at speed control rod top is placed in the slideway of elongated hole on driving disc, speed control rod interts respectively leading in the elongated hole on moving plate, the slide block that speed control rod top is fixing and screw mandrel the inner are connected and fixed, driving disc also has screw mandrel and passage is installed, described screw mandrel is located at screw mandrel and installs in passage, the outer end of screw mandrel is stretched out from driving disc, screw mandrel installation passage on described driving disc and elongated hole are on the same line, driving disc also offers gear rack and elongated hole is installed, described gear rack is installed elongated hole and screw mandrel and is installed passage near driving disc center of circle end is vertical and arrange, gear is connected with wire rod thread, the top of gear is installed elongated hole from gear rack and is exposed, tooth bar is located at gear rack and installs in elongated hole, the geared surface of tooth bar and gears meshing, the hole wall installing elongated hole without the flank of tooth and gear rack of tooth bar contacts, the top of tooth bar is fixed with speed regulation wrench.Promote or press down speed regulation wrench, rack drives pinion rotation, pinion rotation drives screw mandrel to move forward and backward, thus drives speed control rod to move in the elongated hole of driving disc.
The utility model has the advantages that: during use, the driving disc of this device is connected with the pto＝power take-off of motor, driving disc rotates and drives speed control rod to rotate, speed control rod rotates and drives each transmission shaft to swing in the elongated hole of respectively leading moving plate, each transmission shaft swings by unilateral bearing and drives external gear to rotate by the direction of regulation, thus drive internal gear to rotate, make pto＝power take-off outputting power, by the adjustment position of speed control rod in driving disc elongated hole, speed change can be realized, when speed control rod is near driving disc center, the rotating speed of pto＝power take-off is minimum, when driving disc edge, the rotating speed of pto＝power take-off is maximum, when speed control rod is positioned at driving disc center, pto＝power take-off stops operating, unpowered output.Its structure is simple, and operate steadily during speed change, power loss is few, and input end and output terminal can be synchronous, without the need to clutch.
Accompanying drawing illustrates:
Fig. 1 is main TV structure schematic diagram of the present utility model;
Fig. 2 is right TV structure schematic diagram of the present utility model;
Fig. 3 is plan structure schematic diagram of the present utility model;
Fig. 4 is the A-A view of Fig. 1.
Embodiment:
With reference to Fig. 1-4, it comprises base plate 1, be connected and fixed with base plate surrounding bottom shell 2, the transmission shaft 3 having several highly different in shell and an internal gear 4, described internal gear is located in the middle part of base plate, the bottom of internal gear is connected with pto＝power take-off 5, described pto＝power take-off to be arranged on base plate by bearing and to stretch out from base plate, several described transmission shafts are located at the surrounding of internal gear, several transmission shafts are all arranged on base plate respectively by respective bearing, each transmission shaft there is an external gear 6, each external gear is arranged on each transmission shaft respectively by unilateral bearing 7, namely the outer ring of unilateral bearing is fixed on external gear inwall, the inner ring of unilateral bearing is fixed on transmission shaft, external gear on each transmission shaft all engages with internal gear,
Also comprise and identical with transmission shaft quantity lead moving plate 8, each leading on moving plate has axial elongated hole, and the opening of elongated hole is positioned at the front end of leading moving plate;
The upper end of described rear end and each transmission shaft of respectively leading moving plate is connected and fixed, because each transmission shaft height is different, so on each transmission shaft to lead moving plate top-bottom cross overlapping, during installation, lead the front end of moving plate in the middle part of base plate;
Also comprise driving disc 9, the bottom of driving disc is arranged on case top by needle bearing, driving disc there is the elongated hole 10 offering edge from the center of circle, two elongated hole walls of described elongated hole all have axial slideway 11, speed control rod 12 top is fixed with slide block 13, the slide block at speed control rod top is placed in the slideway 11 of elongated hole on driving disc, speed control rod interts respectively leading in the elongated hole on moving plate, the slide block that speed control rod top is fixing and screw mandrel 14 the inner are connected and fixed, driving disc also has screw mandrel and passage 15 is installed, described screw mandrel is located at screw mandrel and installs in passage, the outer end of screw mandrel is stretched out from driving disc, screw mandrel installation passage on described driving disc and elongated hole are on the same line, driving disc also offers gear rack and elongated hole 16 is installed, described gear rack is installed elongated hole and screw mandrel and is installed passage near driving disc center of circle end is vertical and arrange, gear 17 is threaded with screw mandrel 14, the top of gear is installed elongated hole from gear rack and is exposed, tooth bar 18 is located at gear rack and installs in elongated hole, the geared surface of tooth bar and gears meshing, the hole wall installing elongated hole without the flank of tooth and gear rack of tooth bar contacts, the top of tooth bar is fixed with speed regulation wrench 19.Promote or press down speed regulation wrench, rack drives pinion rotation, pinion rotation drives screw mandrel to move forward and backward, thus drives speed control rod to move in the elongated hole of driving disc.
Claims (1)
1. a speed changer, comprise base plate (1), shell (2) bottom is connected and fixed with base plate surrounding, it is characterized in that: in shell, have several highly different transmission shafts (3) and an internal gear (4), described internal gear is located in the middle part of base plate, the bottom of internal gear is connected with pto＝power take-off (5), described pto＝power take-off to be arranged on base plate by bearing and to stretch out from base plate, several described transmission shafts are located at the surrounding of internal gear, several transmission shafts are all arranged on base plate respectively by respective bearing, each transmission shaft there is an external gear (6), each external gear is arranged on each transmission shaft respectively by unilateral bearing (7), external gear on each transmission shaft all engages with internal gear,
Also comprise and identical with transmission shaft quantity lead moving plate (8), each leading on moving plate has axial elongated hole, and the opening of elongated hole is positioned at the front end of leading moving plate;
The upper end of described rear end and each transmission shaft of respectively leading moving plate is connected and fixed;
Also comprise driving disc (9), the bottom of driving disc is arranged on case top by needle bearing, driving disc there is the elongated hole (10) offering edge from the center of circle, two elongated hole walls of described elongated hole all have axial slideway (11), speed control rod (12) top is fixed with slide block (13), the slide block at speed control rod top is placed in the slideway (11) of elongated hole on driving disc, speed control rod interts respectively leading in the elongated hole on moving plate, the slide block that speed control rod top is fixing and screw mandrel (14) the inner are connected and fixed, driving disc also has screw mandrel and passage (15) is installed, described screw mandrel is located at screw mandrel and installs in passage, the outer end of screw mandrel is stretched out from driving disc, driving disc also offers gear rack and elongated hole (16) is installed, described gear rack is installed elongated hole and screw mandrel and is installed passage near driving disc center of circle end is vertical and arrange, gear (17) is threaded with screw mandrel (14), the top of gear is installed elongated hole from gear rack and is exposed, tooth bar (18) is located at gear rack and installs in elongated hole, the geared surface of tooth bar and gears meshing, the hole wall installing elongated hole without the flank of tooth and gear rack of tooth bar contacts, the top of tooth bar is fixed with speed regulation wrench (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520065219.XU CN204459050U (en) | 2015-01-24 | 2015-01-24 | A kind of speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520065219.XU CN204459050U (en) | 2015-01-24 | 2015-01-24 | A kind of speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204459050U true CN204459050U (en) | 2015-07-08 |
Family
ID=53665937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520065219.XU Withdrawn - After Issue CN204459050U (en) | 2015-01-24 | 2015-01-24 | A kind of speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204459050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889445A (en) * | 2015-01-24 | 2016-08-24 | 王广富 | Transmission |
-
2015
- 2015-01-24 CN CN201520065219.XU patent/CN204459050U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105889445A (en) * | 2015-01-24 | 2016-08-24 | 王广富 | Transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150708 Effective date of abandoning: 20180306 |
|
| AV01 | Patent right actively abandoned |