CN203322177U - Wheelbase-variable belt transmission device - Google Patents
Wheelbase-variable belt transmission device Download PDFInfo
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- CN203322177U CN203322177U CN2013203330220U CN201320333022U CN203322177U CN 203322177 U CN203322177 U CN 203322177U CN 2013203330220 U CN2013203330220 U CN 2013203330220U CN 201320333022 U CN201320333022 U CN 201320333022U CN 203322177 U CN203322177 U CN 203322177U
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- belt
- wheelbase
- variable
- hinging
- connecting rod
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Abstract
The utility model provides a wheelbase-variable belt transmission device and belongs to the technical field of mechanical transmission. The wheelbase-variable belt transmission device solves the problem that the belt wheel wheelbase of an existing belt transmission device cannot be changed or the belt tension changes after the wheelbase is changed. The wheelbase-variable belt transmission device comprises a base plate, a transmission belt and four belt wheels arranged on the inner side of the transmission belt, the belt transmission device also comprises a four-bar linkage mechanism, and the four-bar linkage mechanism is provided with four bars and four hinged shafts; each hinged shaft is connected with the base plate through a corresponding linear guide structure; the four belt wheels and the four hinged shafts are fixedly connected in one-to-one correspondence. According to the wheelbase-variable belt transmission device, with the four-bar linkage mechanism, the four belt wheels are enabled to rotate synchronously, the wheelbase also can be freely adjusted according to the linear guide structures, the transmission is stable, and the structure is compact.
Description
Technical field
The utility model belongs to the mechanical transmissioning technology field, relates to the variable belt driver of a kind of wheelbase.
Background technique
In mechanical transmission fields, belt, crawler belt or chain transmission application are more extensive, especially in some feeding machines.Because the girth of belt, crawler belt or chain is fixed, so major part is all fixed the wheelbase between main driving axle and driven shaft, then set up Idle wheel and prevent belt slippage; And if crawler belt and chain wheelbase are improper, cause crawler belt or chain too loose, the chain sling phenomenon easily appears.
In order to make in the situation that wheelbase changes belt still can be tightly placed on the band wheel surface, people have invented elastic belt, the belt drive unit [application number 200690000041.X] of a kind of internal-combustion engine of announcing as Chinese patent, wherein belt pulley is connected by elastic belt.For mounting point is provided, after removing the bolt connection, belt pulley can connect eccentric revolution around bolt.By the wheelbase shortened between belt pulley, simplify the suit of elastic belt.When belt pulley is made eccentric rotary, elastic belt still can be close on the wheel face of belt pulley.But change not stopping due to the elasticity of belt and belt pulley, transmission is unstable, and belt anti-fatigue easily occurs for a long time in flexible state, causes belt to follow the string.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed the variable belt driver of the stable wheelbase of a kind of transmission.
The purpose of this utility model can realize by following technical proposal: the belt driver that a kind of wheelbase is variable, comprise substrate, driving belt, be arranged on four belt wheels of driving belt inboard, it is characterized in that, this belt driver also comprises quadratic crank mechanism, and quadratic crank mechanism has four hinged connecting rod and four hinging shafts of head and the tail mutually; Hinging shaft all is arranged on substrate by corresponding straight-line guidance structure; Four belt wheels are nested with and are connected correspondingly with four hinging shafts.
Four connecting rods join end to end by four hinging shafts, form quadrilateral.Four hinging shafts can slide according to the relative substrate of straight-line guidance structure, thereby drive four connecting rods, move; And four belt wheels coaxially are nested with correspondingly with four hinging shafts and are connected, so can realize that the wheelbase between the belt wheel on the four-bar linkage structure diagonal angle changes.Four connecting rods are hinged, and to form tetragonal length of side overall length constant, and the tetragonal girth that four belt wheels form so is also constant, thus the elasticity of driving belt and belt wheel can not change yet, so transmission is more stable.
At above-mentioned wheelbase in variable belt driver, two hinging shafts on the diagonal angle in described quadratic crank mechanism are arranged on that have can be in opposite directions or on the straight-line guidance structure of opposing movement.Four hinging shafts surround an equilateral parallelogram by connecting rod, two hinging shafts on diagonal angle all the time on same straight line in opposite directions or opposing slip, so the convenient moving direction of controlling belt wheel.
At above-mentioned wheelbase, in variable belt driver, described straight-line guidance structure comprises guide plate, between guide plate and substrate, by guidance set, is connected; Hinging shaft is arranged with fixed cover outward, between hinging shaft and fixed cover, by bearing, is connected; Described fixed cover is fixed on guide plate.Guide plate can slide along the relative substrate of guidance set, drives fixed cover and hinging shaft and moves together, and hinging shaft can freely rotate relative to fixed cover again.
At above-mentioned wheelbase, in variable belt driver, described guidance set is ball linear rail or dovetail groove guide rail.Slide block advances along guide rail, and slide block and guide plate are connected; Guide plate embeds in the dovetail groove guide rail, can slide and not break away from along the dovetail groove guide rail.
At above-mentioned wheelbase in variable belt driver, described straight-line guidance structure comprises and is set in the outer fixed cover of hinging shaft, between hinging shaft and fixed cover, by bearing, is connected; Have the pilot hole that is strip on substrate, described fixed cover is located in pilot hole, and fixed cover and substrate axial and circumferential are fixed.Fixed cover is located in can be along the pilot hole linear slide in pilot hole, and fixed cover and substrate axial and circumferential are fixed, and prevents that fixed cover breaks away from substrate.
In variable belt driver, on described fixed cover outer side surface, have convex shoulder at above-mentioned wheelbase, first is coated with guide layering convex shoulder, and guide layering is fixed on substrate; Convex shoulder one end face relies on mutually with substrate, and other end and outer side surface all lean with guide layering.Fixed cover embeds in the chamber of substrate and guiding pressing plate composition by convex shoulder, to fixed cover, carries out spacing.
At above-mentioned wheelbase in variable belt driver, an end of described connecting rod has the hinged cover section that can be set on hinging shaft; The other end of connecting rod has the hinging hole that can wear for the hinged cover section of another connecting rod.Hinged cover section can be enclosed within outside hinging shaft, and the other end has hinging hole and is enclosed within hinged cover section.
At above-mentioned wheelbase in variable belt driver, the hinged cover section of described connecting rod is connected by bearing with hinging shaft.Be connected by bearing, reduce the surface friction drag of hinging shaft when connecting rod rotates.
At above-mentioned wheelbase, in variable belt driver, four length of connecting rods of described quadratic crank mechanism are identical.Length of connecting rod is identical, and structure is just the same, is convenient to manufacture and assembling and replacing.
At above-mentioned wheelbase, in variable belt driver, two parallel connecting rods are positioned at two parallel in addition connecting rods tops.Connecting rod is stacked mutually, reduces the space that connecting rod takies, and structure is more firm during four connection-rod linkages simultaneously.
At above-mentioned wheelbase in variable belt driver, the hinged wheelbase of the head and the tail of every connecting rod of described quadratic crank mechanism is identical.
At above-mentioned wheelbase, in variable belt driver, the pitch diameter of four described belt wheels is identical.
Compared with prior art, the variable belt driver of this wheelbase passes through quadratic crank mechanism, makes when four belt wheels are synchronous to rotate, and its wheelbase also can freely be adjusted according to the straight-line guidance structure, and transmission is stable, compact structure.
The accompanying drawing explanation
Fig. 1 is the plan structure figure of the variable belt driver of the wheelbase of the present embodiment one.
Fig. 2 is the partial schematic sectional view of the variable belt driver of the wheelbase of the present embodiment one.
Fig. 3 is the quadratic crank mechanism structural representation.
Fig. 4 is the plan structure schematic diagram of connecting rod.
Fig. 5 is the sectional structure schematic diagram of connecting rod.
In figure, 1, substrate; 2, driving belt; 3, belt wheel; 4, connecting rod; 41, hinged cover section; 42, hinging hole; 5, hinging shaft; 6, guide layering; 7, fixed cover; 71, convex shoulder; 8, bearing.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one
The variable belt driver of this wheelbase is applied in the crawler belt feeder, crawler belt is adjacent to each other and clamp bar, in the process clamped, crawler belt also needs to drive bar and advances, so, by the variable belt driver of wheelbase, make the crawler belt feeder be suitable for the bar of Multiple Type.As shown in Figure 1 and Figure 2, the variable belt driver of this wheelbase comprises substrate 1, driving belt 2, be arranged on four belt wheels 3 and the quadratic crank mechanism of driving belt 2 inboards, and quadratic crank mechanism has four connecting rods 4 and four hinging shafts 5.Hinging shaft 5 all is connected with substrate 1 by corresponding straight-line guidance structure, and four belt wheels 3 are fixedly connected with correspondingly with four hinging shafts 5.
Specifically, the straight-line guidance structure directing direction of relative two hinging shafts 5 is located along the same line, and the straight-line guidance structure directing direction of adjacent two hinging shafts 5 vertically arranges.The straight-line guidance structure comprises and is set in the outer fixed cover 7 of hinging shaft 5, between hinging shaft 5 and fixed cover 7, by bearing 8, is connected.Have the pilot hole that is strip on substrate 1, fixed cover 7 is located in pilot hole, and fixed cover 7 is fixed with substrate 1 axial and circumferential.Have convex shoulder 71 on fixed cover 7 outer side surfaces, first is coated with guide layering 6 convex shoulder 71, and guide layering 6 is fixed on substrate 1; Convex shoulder 71 1 end faces rely on mutually with substrate 1, and other end and outer side surface all lean with guide layering 6.Fixed cover 7 is located in can be along the pilot hole linear slide in pilot hole, the guiding pressing plate makes fixed cover 7 and substrate 1 axial, can be on annular convex shoulder 71 inserting bolt, bolt through pilot hole also, when fixed cover 7 rotates, bolt leans with the guiding hole wall, stop that fixed cover 7 circumferentially rotates, reach circumferentially fixing purpose.
As shown in Fig. 3, Fig. 4, Fig. 5, one end of connecting rod 4 has the hinged cover section 41 that can be set on hinging shaft 5, the other end of connecting rod 4 has the hinging hole 42 that can wear for the hinged cover section 41 of another connecting rod 4, and the hinged cover section 41 of connecting rod 4 is connected by bearing 8 with hinging shaft 5.Four connecting rod 4 length of the quadratic crank mechanism of the present embodiment are identical, and two parallel connecting rods 4 are positioned at two parallel connecting rod 4 tops in addition.The quadratic crank mechanism compact structure, can steady-state deformation when hinging shaft 5 moves, and the hinged wheelbase of the head and the tail of the every connecting rod 4 of quadratic crank mechanism is identical, and the pitch diameter of four belt wheels 3 is identical.
Embodiment two
Be the straight-line guidance structure with embodiment one difference, it comprises guide plate, between guide plate and substrate 1, by guidance set, is connected, and guidance set is ball linear rail or dovetail groove guide rail, between hinging shaft 5 and fixed cover 7, by bearing 8, is connected.Fixed cover 7 is fixed on guide plate, and guide plate can slide along the relative substrate 1 of guidance set, drives fixed cover 7 and hinging shaft 5 and moves together, and hinging shaft 5 can freely rotate relative to fixed cover 7 again.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (7)
1. the belt driver that wheelbase is variable, comprise substrate (1), driving belt (2), be arranged on inboard four belt wheels (3) of driving belt (2), it is characterized in that, this belt driver also comprises quadratic crank mechanism, and quadratic crank mechanism has four head and the tail are hinged mutually connecting rod (4) and four hinging shafts (5); Hinging shaft (5) all is arranged on substrate (1) by corresponding straight-line guidance structure; Four belt wheels (3) are nested with and are connected correspondingly with four hinging shafts (5).
2. the variable belt driver of wheelbase according to claim 1, is characterized in that, two hinging shafts (5) on the diagonal angle in described quadratic crank mechanism are arranged on that have can be in opposite directions or on the straight-line guidance structure of opposing movement.
3. the variable belt driver of wheelbase according to claim 2, is characterized in that, described straight-line guidance structure comprises guide plate, between guide plate and substrate (1), by guidance set, is connected; The outer fixed cover (7) that is arranged with of hinging shaft (5), be connected by bearing (8) between hinging shaft (5) and fixed cover (7); Described fixed cover (7) is fixed on guide plate.
4. the variable belt driver of wheelbase according to claim 3, is characterized in that, described guidance set is ball linear rail or dovetail groove guide rail.
5. according to claim 1 or the variable belt driver of 2 or 3 or 4 described wheelbase, it is characterized in that, an end of described connecting rod (4) has the hinged cover section (41) that can be set on hinging shaft (5); The other end of connecting rod (4) has the hinging hole (42) that can wear for the hinged cover section (41) of another connecting rod (4).
6. the variable belt driver of wheelbase according to claim 5, is characterized in that, the hinged wheelbase of the head and the tail of the every connecting rod (4) of described quadratic crank mechanism is identical.
7. the variable belt driver of wheelbase according to claim 6, is characterized in that, the pitch diameter of four belt wheels (3) is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203330220U CN203322177U (en) | 2013-06-08 | 2013-06-08 | Wheelbase-variable belt transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203330220U CN203322177U (en) | 2013-06-08 | 2013-06-08 | Wheelbase-variable belt transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322177U true CN203322177U (en) | 2013-12-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203330220U Expired - Fee Related CN203322177U (en) | 2013-06-08 | 2013-06-08 | Wheelbase-variable belt transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203322177U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415399A (en) * | 2015-12-29 | 2016-03-23 | 苏州卓德电子有限公司 | Horizontal fine adjustment device for mechanical arm |
| CN108167407A (en) * | 2017-12-27 | 2018-06-15 | 江苏高精机电装备有限公司 | A kind of adjustable multiaxis case apparatus of wheelbase |
-
2013
- 2013-06-08 CN CN2013203330220U patent/CN203322177U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415399A (en) * | 2015-12-29 | 2016-03-23 | 苏州卓德电子有限公司 | Horizontal fine adjustment device for mechanical arm |
| CN108167407A (en) * | 2017-12-27 | 2018-06-15 | 江苏高精机电装备有限公司 | A kind of adjustable multiaxis case apparatus of wheelbase |
| WO2019128044A1 (en) * | 2017-12-27 | 2019-07-04 | 江苏高精机电装备有限公司 | Multi-spindle box apparatus with adjustable shaft distance |
| CN108167407B (en) * | 2017-12-27 | 2019-09-13 | 江苏高精机电装备有限公司 | A kind of adjustable multiaxis case apparatus of wheelbase |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 317000, Feng Village, Jiangnan street, Linhai City, Zhejiang, 1-12 Patentee after: Ma Wenqiang Address before: Taizhou City, Zhejiang province Jiaojiang District 318000 dreams for court room 3-201 Patentee before: Ma Wenqiang |
|
| ASS | Succession or assignment of patent right |
Owner name: TAIZHOU LIANGYAO COMPLETE EQUIPMENT CO., LTD. Free format text: FORMER OWNER: MA WENQIANG Effective date: 20140918 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 317000 TAIZHOU, ZHEJIANG PROVINCE TO: 318000 TAIZHOU, ZHEJIANG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140918 Address after: 318000, Taizhou District, Zhejiang City, Jiaojiang province Baiyun Street, through the Middle Road, Henghe Village Patentee after: TAIZHOU LIANGYAO COMPLETE EQUIPMENT CO., LTD. Address before: 317000, Feng Village, Jiangnan street, Linhai City, Zhejiang, 1-12 Patentee before: Ma Wenqiang |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20150608 |
|
| EXPY | Termination of patent right or utility model |