CN2387321Y - Belt wheel-type mechanical stepless speed variator - Google Patents
Belt wheel-type mechanical stepless speed variator Download PDFInfo
- Publication number
- CN2387321Y CN2387321Y CN 99232316 CN99232316U CN2387321Y CN 2387321 Y CN2387321 Y CN 2387321Y CN 99232316 CN99232316 CN 99232316 CN 99232316 U CN99232316 U CN 99232316U CN 2387321 Y CN2387321 Y CN 2387321Y
- Authority
- CN
- China
- Prior art keywords
- packing ring
- slide block
- stepless speed
- frame
- belt wheel
- 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
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Abstract
The utility model relates to a belt wheel type mechanical stepless speed regulator, which is composed of a machine frame, a rotating shaft, a synchronizer, a spline disk, a sliding block in the spline disk and a washer; the combined mode of the washer and the sliding block is used as a drive member, force transmission ratio and transmission ratio can be improved, and therefore, a large power machine device is driven to carry out mechanical stepless speed regulation.
Description
The utility model belongs to the mechanical stepless speed-regulating field, is specifically related to a kind of belt wheel formula mechanical stepless speed regulator.
The mechanical stepless speed regulator all grows a lot both at home and abroad in recent years, after toothed-chain type, circular cone type, pyramid-type, has occurred spherical mechanical friction type speed regulator again.This kind speed regulator is made of the regulon of body, transverse axis, symmetry, but it makes driving component with steel ball, belong to the some contact, thereby the area of contact of steel ball and plate wheel is little, causes driving force less, can't carry out mechanical stepless speed-regulating to more powerful machinery.And some contacting structure form makes bending resistance pressure that plate wheel bears much smaller than torsion radially, thereby velocity ratio is restricted, and is generally 1: 3.2, and velocity ratio is less.
The purpose of this utility model is at above shortcomings in the prior art, provides a kind of power transmission area of contact big, thereby increases transmission power and velocity ratio, and then can make the large-sized power machinery carry out the belt wheel formula mechanical stepless speed regulator of mechanical stepless speed-regulating.
The technical solution of the utility model is as follows:
Belt wheel formula mechanical stepless speed regulator is made up of slide block in frame, rotating shaft, synchronizer, flower keyboard and the flower keyboard and packing ring.Frame is traversed in rotating shaft, frame is interior along the axial positive and negative regulon that is symmetrically distributed of rotating shaft, it is characterized in that said units is provided with synchronizer and flower keyboard along frame inner wall to frame central, flower keyboard and rotating shaft interference fit also flexibly connect with synchronizer, flower keyboard built-in sliding block and packing ring, the one side of slide block flexibly connects with flower keyboard, and opposing side is the inclined-plane and flexibly connects with packing ring, supporting bead constitutes the vee belt race, and the round heart of slide block and packing ring place all overlaps with shaft axis.The packing ring working surface with supported with respect to radially all consistent with the inclined-plane of slide block, packing ring is provided with groove and the track that matches with the slide block surface of contact.Slide block and packing ring are at least 2 groups, and every group contains slide block and packing ring is at least 2.
The utlity model has following advantage:
1. the utility model adopts the compound mode of packing ring and slide block to make driving component, and the contact of changing the time has increased the area of contact of belt and belt wheel for the face contact, thereby transmission power is increased, and velocity ratio can be up to 1: 30.
2. formed under slider support by packing ring is the vee belt race, the vee belt is compared with flat rubber belting, under the identical situation of pre-tensioning, the vee belt is bigger at the suffered component of surface of contact, cause frictional force to increase, thereby the transmission power of vee belt velocity ratio flat belt driving is big, has reinforcement effect, the final realization makes powerful machinery, can carry out the purpose of mechanical stepless speed-regulating as automobile, lathe, milling machine, winch, crane gear etc.
3. the utility model can superpose power transmission along the positive and negative regulon that rotating shaft axially is symmetrically distributed, and this also is one of transmission power cause of increased.
The utility model is described in further detail in conjunction with the accompanying drawings and embodiments more below:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of packing ring.
As shown in Figure 1, this belt wheel formula mechanical stepless speed regulator comprises frame 3, and frame 3 is traversed in rotating shaft 1, and bearing 12 is connected as a single entity rotating shaft 1 and frame 3.Along the rotating shaft 1 axial positive and negative regulon that is symmetrically distributed, the quantity of positive and negative regulon is determined on a case-by-case basis, and has two regulons in this example in the frame 3.These two unit are provided with along frame inner wall to frame central: synchronizer and flower keyboard 7.Synchronizer among this figure is made of frame 3 outer dial difference handwheel cover 13, group difference wedge head 2, clutch 4, brake bracket 5 and helical disks 6, also can use connecting rod, screw mandrel or dimension cover to form.Flower keyboard 7 flexibly connects with rotating shaft 1 interference fit and with helical disk 6, and helical disk 6 usefulness nuts 11 are fixing.Flower keyboard 7 built-in sliding blocks 9 and packing ring 8, the one side of slide block 9 and flower keyboard 7 flexibly connects, opposing side is the inclined-plane and flexibly connects with packing ring 8, the round heart of slide block 9 and packing ring 8 places all with rotating shaft 1 dead in line.Packing ring 8 forms vee belt race 14 under the support of slide block 9, packing ring 8 working surfaces with supported with respect to radially all consistent with the inclined-plane of slide block 9.The group number of packing ring and slide block is consistent with the quantity of regulon.
The structural representation of packing ring 8 is referring to Fig. 2, and the quantity of the size of packing ring 8 and number and slide block is determined on a case-by-case basis.The ring packing ring that this example selects for use 13 interior external diameter differences and thickness to equate, all packing rings 8 are the center of circle with the axis of rotating shaft 1 all.Each packing ring 8 is equipped with 6 road grooves 10, matches with track on the slide block 9, to prevent that packing ring 8 is in slide block 9 upper edge rotational.Also can on packing ring 8, establish track, establish groove on the slide block 9, equally also can reach and prevent packing ring purpose in relative rotation.After slide block 9 radially outwards moves, lose slide block 9 by the packing ring 8 in axle center and support and de-orbit, under supporting, slide block 9 is reassembled into new vee-pulley groove face again away from the packing ring 8 in axle center, and promptly the belt wheel calculated diameter changes.
Speed regulation process: when speed regulator is in position shown in Figure 1, by setting aside poor handwheel cover 13, dialling difference wedge head 2 and move down, it is close to helical disk 6 to promote clutch 4 by wedge head 2 inclined-planes, by clutch 4 promote brake brackets 5, make helical disk 6 respectively with corresponding flower keyboard 7 take-off the brakes.After braking was totally released, clutch 4 and corresponding helical disk 6 were meshing, and helical disk 6 and frame 3 are connected as a single entity, and promptly helical disk 6 can not rotate relative to frame 3.Determine turning to and revolution of rotating shaft 1 on demand, when increasing vee belt race 14 calculated diameter 8mm, rotating shaft 1 can be rotated a week along clockwise direction as if need.If in the time of need reducing vee belt race 14 calculated diameter 4mm, rotating shaft 1 can be rotated 1/2 all getting final product along counterclockwise direction.When rotating shaft 1, flower keyboard 7, slide block 9 rotate simultaneously synchronously, because of slide block 9 in six keyways of flower keyboard 7, can only move radially, the amount of moving radially is by helical disk 6 controls, this moment, slide block 9 took place to relatively rotate and move radially with respect to helical disk 6, only moved radially with respect to flower keyboard 7 and 8 on packing ring.Amount of movement is all numbers that the tooth distance of helical disk 6 is multiplied by its rotation.Six slide blocks, 9 place radius of a circle variable quantities on flower keyboard 7 are the rate of travel of slide block 9 relative flower keyboards 7.After we regulate, group difference handwheel cover 13 that relieving is pinned, under the promotion of stage clip, dialling difference wedge head 2 breaks away from clutch 4, brake bracket 5 promotes clutch 4 and moves to frame 3 both sides under the pressure effect of stage clip, helical disk 6 and clutch 4 are broken away from, and braking and locking this moment (auto lock under the effect of stage clip pressure component) enters working state thereupon, and speed regulation process finishes.
Claims (3)
1. belt wheel formula mechanical stepless speed regulator, comprise frame, frame is traversed in rotating shaft, frame is interior along the axial positive and negative regulon that is symmetrically distributed of rotating shaft, it is characterized in that said units is provided with synchronizer and flower keyboard along frame inner wall to frame central, flower keyboard and rotating shaft interference fit also flexibly connect with synchronizer, flower keyboard built-in sliding block and packing ring, the one side of slide block flexibly connects with flower keyboard, opposing side is the inclined-plane and flexibly connects with packing ring, supporting bead constitutes the vee belt race, and the round heart of slide block and packing ring place all overlaps with shaft axis.
2. belt wheel formula mechanical stepless speed regulator according to claim 1, it is characterized in that the packing ring working surface with supported with respect to radially all consistent with the inclined-plane of slide block, packing ring is provided with groove and the track that matches with the slide block surface of contact.
3. belt wheel formula mechanical stepless speed regulator according to claim 2 is characterized in that described slide block and packing ring are at least 2 groups, and every group contains slide block and packing ring is at least 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99232316 CN2387321Y (en) | 1999-08-09 | 1999-08-09 | Belt wheel-type mechanical stepless speed variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99232316 CN2387321Y (en) | 1999-08-09 | 1999-08-09 | Belt wheel-type mechanical stepless speed variator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2387321Y true CN2387321Y (en) | 2000-07-12 |
Family
ID=34021024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99232316 Expired - Fee Related CN2387321Y (en) | 1999-08-09 | 1999-08-09 | Belt wheel-type mechanical stepless speed variator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2387321Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3604844A1 (en) * | 2018-08-03 | 2020-02-05 | Ondal Medical Systems GmbH | Bearing assembly |
-
1999
- 1999-08-09 CN CN 99232316 patent/CN2387321Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3604844A1 (en) * | 2018-08-03 | 2020-02-05 | Ondal Medical Systems GmbH | Bearing assembly |
| WO2020025834A1 (en) | 2018-08-03 | 2020-02-06 | Ondal Medical Systems Gmbh | Bearing arrangement |
| US11927219B2 (en) | 2018-08-03 | 2024-03-12 | Ondal Medical Systems Gmbh | Bearing arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |