CN203880043U - Belt wheel - Google Patents
Belt wheel Download PDFInfo
- Publication number
- CN203880043U CN203880043U CN201420203326.XU CN201420203326U CN203880043U CN 203880043 U CN203880043 U CN 203880043U CN 201420203326 U CN201420203326 U CN 201420203326U CN 203880043 U CN203880043 U CN 203880043U
- Authority
- CN
- China
- Prior art keywords
- fastener assembly
- annular fastener
- wheel hub
- belt pulley
- semi
- 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- Withdrawn - After Issue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
The utility model discloses a belt wheel which comprises a hub (1), a first annular fastening assembly (2) and a second annular fastening assembly (3). The hub (1) is provided with a shaft hole (101), the first annular fastening assembly (2) is arranged around the shaft hole (101) and is fixedly connected with the hub (1), the first annular fastening assembly (2) is provided with at least one notch (201) which penetrates through the side wall of the first annular fastening assembly (2) in the radial direction and extends to the end face of the hub (1) from the end face of the first annular fastening assembly (2), and the second annular fastening assembly (3) is detachably arranged on the periphery of the first annular fastening assembly (2) in a sleeved mode so that the notch (201) in the first annular fastening assembly (2) can be tightened up. The belt wheel is convenient to disassemble and assemble, convenient to machine, firm in connection and high in torque.
Description
Technical field
The utility model relates to a kind of belt pulley.
Background technique
Belt pulley is the transmission device of commonly using, and is conventionally connected with transmission shaft.Transmission shaft needs to closely cooperate with belt pulley in the process that drives belt pulley to rotate, and when transmission shaft or belt pulley need to be safeguarded, needs belt pulley and transmission shaft to separate.
In order to take into account, transmission shaft and belt pulley closely cooperate and easy-to-dismount function, multiple solution is provided in prior art, the Chinese patent that for example publication number is CN2061227U " mechanical transmission that has removable shaft coupling piece ", it is sheathed taper sheath on axle, the axis hole that simultaneously makes belt pulley is also tapering surface, and the cooperation by taper sheath and tapering surface can be locked and dismantle belt pulley and axle.But this kind of mode need to be revised the inner hole surface of belt pulley, processing inconvenience, and in the inner hole surface of tapering surface and roulette wheel, need to arrange taper pin and fastening screw trip bolt, dismounting is inconvenient.
The Chinese patent that and for example publication number is CN202188030U " linkage structure of a kind of belt pulley and axle ", it arranges a plurality of fixed holes at belt pulley circumferencial direction, at the shaft shoulder place of rotating shaft, flange is set, and by bolt, rotating shaft is connected with belt pulley.But in technique scheme, bolt is arranged at belt pulley circumference, the length direction of bolt and the direction of axle are parallel, while adopting this kind of scheme, need in rotating shaft, set up flange, processing inconvenience, and also flange connection is insecure, and moment of torsion is less.
Model utility content
Technical problem to be solved in the utility model is, provide a kind of easy accessibility, easy to process, be connected firmly and belt pulley that moment of torsion is higher.
For solving the problems of the technologies described above, the belt pulley that the utility model provides, it comprises the wheel hub with axis hole; The first annular fastener assembly, the first described annular fastener assembly is around axis hole setting, the first annular fastener assembly is fixedly connected with wheel hub, offers at least one and radially run through the sidewall of the first annular fastener assembly the notch that the end face from the end face of the first annular fastener assembly to wheel hub extends on the first annular fastener assembly; The second annular fastener assembly, the second described annular fastener assembly is dismountable to be nested with at the peripheral of the first annular fastener assembly and the notch on the first annular fastener assembly is tightened up.
As preferably, described notch has two and be symmetrical arranged with respect to the axis of the first annular fastener assembly.
As preferably, the outer wall of the first described annular fastener assembly is cylndrical surface, the inwall of the second annular fastener assembly is cylndrical surface, the second annular fastener assembly comprises the first semi-ring and the second semi-ring that two ends are all oppositely arranged, gap between the two ends of the first semi-ring and the second semi-ring and notch are in same radial line direction, the two ends of the first semi-ring are respectively equipped with the first stepped bolt holes radially arranging, the two ends of the second semi-ring are respectively equipped with the first screw hole radially arranging, the first stepped bolt holes and the first screw hole are coaxially set one to one, in the first corresponding stepped bolt holes and the first screw hole, one first bolt is set.
As preferably, the outer wall of the first described annular fastener assembly is round table surface, the first annular fastener assembly increases gradually from the one end away from wheel hub to one end external diameter being connected with wheel hub, the inwall of the second annular fastener assembly is round table surface, the second annular fastener assembly increases gradually from the one end away from wheel hub to one end internal diameter near wheel hub, on wheel hub, axially run through and be provided with around axis hole hoop several second screw holes that distribute, on the second semi-ring, axially run through and be provided with several second stepped bolt holes that hoop distributes, the second stepped bolt holes and the second screw hole are coaxially set one to one, in the second corresponding stepped bolt holes and the second screw hole, one second bolt is set.
As preferably, the second described bolt has four.
As preferably, described notch extends axially the lower end surface to axis hole from the upper-end surface of the first annular fastener assembly.
As preferably, on described wheel hub, be provided with the radially extending groove that axially runs through wheel hub, radially one end of extending groove is communicated with notch, and radially the other end of extending groove is communicated with the manhole that axially runs through wheel hub.
As preferably, in the relative both side surface of described axis hole, be symmetrically arranged with described the first annular fastener assembly and the second annular fastener assembly.
As preferably, a plurality of belt pulley mounting holes on described wheel hub, have also been formed through.
Adopt after above structure, the utility model compared with prior art, has advantages of following:
Transmission shaft is put into the first annular fastener assembly and axis hole, then the second annular fastener assembly is nested with in the periphery of the first annular fastener assembly also fastening, the second annular fastener assembly tightens up the notch on the first annular fastener assembly, such the first annular fastener assembly just clamps transmission shaft, transmission shaft and belt pulley be connected firmly and also moment of torsion larger; And do not need to revise the inner hole surface of axis hole, and the second annular fastener assembly is dismountable, the second annular fastener assembly can be processed separately, easy to process; When dismounting belt pulley and transmission shaft, only need to tighten and unscrew the bolt on the second annular fastener assembly, easy accessibility.
Accompanying drawing explanation
Fig. 1 is embodiment one side view;
Fig. 2 is embodiment one plan view;
Fig. 3 is embodiment one STRUCTURE DECOMPOSITION figure;
Fig. 4 is embodiment two side view;
Fig. 5 is embodiment two sectional drawing;
Fig. 6 is embodiment two STRUCTURE DECOMPOSITION figure.
Wherein, 1, wheel hub; 101, axis hole; 102, extending groove radially; 103, manhole; 104, belt pulley mounting hole; 105, dentation groove; 2, the first annular fastener assembly; 201, notch; 3, the second annular fastener assembly; 301, the first semi-ring; 3011, the first stepped bolt holes; 3012, the second stepped bolt holes; 302, the second semi-ring; 3021, the first screw hole; 3022, the second screw hole; 303, the first bolt; 304, the second bolt; 305, gap.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
The utility model belt pulley comprises the annular fastener assembly 2 of wheel hub 1, first and the second annular fastener assembly 3.
Described wheel hub 1 has axis hole 101, and axis hole 101 comprises manhole and square keyhole, by square keyhole is set, makes axle more firm with being connected of axis hole, does not understand left and right or bob.
The first described annular fastener assembly 2 arranges around axis hole 101, the first annular fastener assembly 2 is fixedly connected with wheel hub 1, on the first annular fastener assembly 2, offer at least one and radially run through the sidewall of the first annular fastener assembly 2 notch 201 that the end face from the end face of the first annular fastener assembly 2 to wheel hub 1 extends, the first annular fastener assembly 2 processes with wheel hub 1 is one-body molded, after the first annular fastener assembly 2 can certainly being processed, is installed on wheel hub 1.
The second described annular fastener assembly 3 is dismountable to be nested with at the peripheral of the first annular fastener assembly 2 and the notch 201 on the first annular fastener assembly 2 is tightened up, that is to say after the second annular fastener assembly 3 is nested with the first annular fastener assembly 2 upper and fastening, the second annular fastener assembly 3 tightens up the notch 201 on the first annular fastener assembly 2, at this moment the first annular fastener assembly 2 just clamps the transmission shaft being arranged in the first annular fastener assembly 2, so just transmission shaft is closely connected with wheel hub 1, transmission shaft is in rotation process, its stress surface is the internal surface of whole axis hole 101 and the first annular fastener assembly 2, stress surface is larger, make moment of torsion larger.
Described notch 201 has two and be symmetrical arranged with respect to the axis of the first annular fastener assembly 2, and two notches 201 are in the same radial line direction of the first annular fastener assembly, and certainly, described notch 201 also can be three, four and more.
Described notch 201 extends axially to the lower end surface of axis hole 101 from the upper-end surface of the first annular fastener assembly 2, that is to say that notch 201 radially runs through the first described annular fastener assembly 2 and wheel hub 1, notch 201 is communicated with axis hole 101, like this, the first annular fastener assembly 2 expands and tightens up than being easier to, while making dismounting transmission shaft and belt pulley more for convenience.
On described wheel hub 1, be provided with the radially extending groove 102 that axially runs through wheel hub 1, radially one end of extending groove 102 is communicated with notch 201, radially the other end of extending groove 102 is communicated with the manhole 103 that axially runs through wheel hub 1, radially extending groove 102 has two and the both sides of symmetrical the first annular fastener assembly 2 respectively, manhole 103 has two and be separately positioned on the both sides of the first annular fastener assembly 2, be positioned at the notch 201 of first annular fastener assembly 2 the same sides, radially extending groove 102 and manhole 103 are interconnected, like this, radially extending groove 102 and manhole 103 can discharge and cushion the impact of coupling mechanism force on wheel hub 1, while avoiding notch 201 on the first annular fastener assembly 2 to tighten up, wheel hub 1 is caused to damage.
In the relative both side surface of described axis hole 101, be symmetrically arranged with described the first annular fastener assembly 2 and the second annular fastener assembly 3.
On described wheel hub 1, be also formed through a plurality of belt pulley mounting holes 104, belt pulley mounting hole 104 is for installing fixing described wheel hub 1.
On the outer surface of described wheel hub 1, be also formed with many dentation grooves 105, these dentation grooves 105 strengthen the frictional force of the outer surface of wheel hub 1, reduce skidding.
Below by two embodiments, set forth two kinds of different structures of the first annular fastener assembly 2 and the second annular fastener assembly 3:
Embodiment one
With reference to Fig. 1, Fig. 2, Fig. 3, the outer wall of the first described annular fastener assembly 2 is cylndrical surface, the inwall of the second annular fastener assembly 3 is cylndrical surface, the second annular fastener assembly 3 comprises the first semi-ring 301 and the second semi-ring 302 that two ends are all oppositely arranged, between the first semi-ring 301 and the two ends of the second semi-ring 302, be provided with gap 305, gap 305 between the first semi-ring 301 and the two ends of the second semi-ring 302 and notch 201 are in same radial line direction, the two ends of the first semi-ring 301 are respectively equipped with the first stepped bolt holes 3011 radially arranging, the two ends of the second semi-ring 302 are respectively equipped with the first screw hole 3021 radially arranging, the first stepped bolt holes 3011 and the first screw hole 3021 are coaxially set one to one, corresponding the first stepped bolt holes 3011 and interior one first bolt 303 that arranges of the first screw hole 3021, by the first bolt 303 by the first semi-ring 301 and the second semi-ring 302, and first screw hole 3021 run through the second semi-ring 302, when reality is used, without the first bolt 303 of specially choosing given length, as long as the screw rod of the first bolt 303 can stretch into the first screw hole 3021, no matter whether it is housed inside in the first screw hole 3021 or stretching out in the first screw hole 3021 all can reach the effect of the first semi-ring 301 and the second semi-ring 302 lockings.
Embodiment two
With reference to Fig. 4, Fig. 5, Fig. 6, the outer wall of the first described annular fastener assembly 2 is round table surface, the first annular fastener assembly 2 increases gradually from the one end away from wheel hub 1 to one end external diameter being connected with wheel hub 1, the inwall of the second annular fastener assembly 3 is round table surface, the second annular fastener assembly 3 increases gradually from the one end away from wheel hub 1 to one end internal diameter near wheel hub 1, on wheel hub 1, axially run through and be provided with around axis hole 101 hoops several second screw holes 3022 that distribute, on the second semi-ring 302, axially run through and be provided with several second stepped bolt holes 3012 that hoop distributes, the second stepped bolt holes 3012 and the second screw hole 3022 are coaxially set one to one, corresponding the second stepped bolt holes 3012 and interior one second bolt 304 that arranges of the second screw hole 3022.
The second described bolt 304 has four, that is to say that the second described stepped bolt holes 3012 and the second screw hole 3022 all have four and be coaxially set one to one, interior one second bolt 304 that all arranges of the second stepped bolt holes 3012 of every group of coaxial line and the second screw hole 3022, that is to say when the second annular fastener assembly 3 is nested with on the first annular fastener assembly 2, along with the second bolt 304, by the second annular fastener assembly 3, the end face to wheel hub 1 compresses gradually, the second annular fastener assembly 3 clamps the first annular fastener assembly 2 gradually, notch 201 on the first annular fastener assembly 2 is tightened up gradually, the transmission shaft being placed in axis hole 101 is clamped, certainly, the second described bolt 304 also can be five, six and more, do not limit.
Certainly, the first annular fastener assembly 2 and the second annular fastener assembly 3 can be also other structures, and above-mentioned two embodiments only for example understand two kinds of preferable case.
Below only with regard to the utility model, apply preferably example and made explanation, but can not be interpreted as it is limitations on claims, structure of the present utility model can have other to change, and is not limited to said structure.In a word, all various variations of doing in the protection domain of independent claims of the present utility model are all in protection domain of the present utility model.
Claims (9)
1. a belt pulley, is characterized in that, it comprises:
The wheel hub (1) with axis hole (101);
The first annular fastener assembly (2), the first described annular fastener assembly (2) arranges around axis hole (101), the first annular fastener assembly (2) is fixedly connected with wheel hub (1), offers at least one and radially run through the sidewall of the first annular fastener assembly (2) the notch (201) that the end face from the end face of the first annular fastener assembly (2) to wheel hub (1) extends on the first annular fastener assembly (2);
The second annular fastener assembly (3), the second described annular fastener assembly (3) is dismountable to be nested with at the peripheral of the first annular fastener assembly (2) and the notch (201) on the first annular fastener assembly (2) is tightened up.
2. belt pulley according to claim 1, is characterized in that: described notch (201) has two and be symmetrical arranged with respect to the axis of the first annular fastener assembly (2).
3. belt pulley according to claim 2, it is characterized in that: the outer wall of the first described annular fastener assembly (2) is cylndrical surface, the inwall of the second annular fastener assembly (3) is cylndrical surface, the second annular fastener assembly (3) comprises the first semi-ring (301) and the second semi-ring (302) that two ends are all oppositely arranged, gap (305) between the two ends of the first semi-ring (301) and the second semi-ring (302) and notch (201) are in same radial line direction, the two ends of the first semi-ring (301) are respectively equipped with the first stepped bolt holes (3011) radially arranging, the two ends of the second semi-ring (302) are respectively equipped with the first screw hole (3021) radially arranging, the first stepped bolt holes (3011) and the first screw hole (3021) are coaxially set one to one, in corresponding the first stepped bolt holes (3011) and the first screw hole (3021), one first bolt (303) is set.
4. belt pulley according to claim 2, it is characterized in that: the outer wall of the first described annular fastener assembly (2) is round table surface, the first annular fastener assembly (2) increases gradually from the one end away from wheel hub (1) to one end external diameter being connected with wheel hub (1), the inwall of the second annular fastener assembly (3) is round table surface, the second annular fastener assembly (3) increases gradually from the one end away from wheel hub (1) to one end internal diameter near wheel hub (1), on wheel hub (1), axially run through and be provided with around axis hole (101) hoop several second screw holes (3022) that distribute, on the second semi-ring (302), axially run through and be provided with several second stepped bolt holes (3012) that hoop distributes, the second stepped bolt holes (3012) and the second screw hole (3022) are coaxially set one to one, in corresponding the second stepped bolt holes (3012) and the second screw hole (3022), one second bolt (304) is set.
5. belt pulley according to claim 4, is characterized in that: described the second bolt (304) has four.
6. belt pulley according to claim 2, is characterized in that: described notch (201) extends axially to the lower end surface of axis hole (101) from the upper-end surface of the first annular fastener assembly (2).
7. belt pulley according to claim 6, it is characterized in that: on described wheel hub (1), be provided with the radially extending groove (102) that axially runs through wheel hub (1), radially one end of extending groove (102) is communicated with notch (201), and radially the other end of extending groove (102) is communicated with the manhole (103) that axially runs through wheel hub (1).
8. belt pulley according to claim 1, is characterized in that: in the relative both side surface of described axis hole (101), be symmetrically arranged with described the first annular fastener assembly (2) and the second annular fastener assembly (3).
9. belt pulley according to claim 1, is characterized in that: on described wheel hub (1), be also formed through a plurality of belt pulley mounting holes (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203326.XU CN203880043U (en) | 2014-04-24 | 2014-04-24 | Belt wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203326.XU CN203880043U (en) | 2014-04-24 | 2014-04-24 | Belt wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203880043U true CN203880043U (en) | 2014-10-15 |
Family
ID=51680541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420203326.XU Withdrawn - After Issue CN203880043U (en) | 2014-04-24 | 2014-04-24 | Belt wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203880043U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968038A (en) * | 2014-04-24 | 2014-08-06 | 宁波腾隆户外用品有限公司 | Belt pulley |
| CN107687512A (en) * | 2016-08-05 | 2018-02-13 | 株式会社日立制作所 | Pulley |
-
2014
- 2014-04-24 CN CN201420203326.XU patent/CN203880043U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968038A (en) * | 2014-04-24 | 2014-08-06 | 宁波腾隆户外用品有限公司 | Belt pulley |
| CN103968038B (en) * | 2014-04-24 | 2016-09-14 | 宁波腾隆户外用品有限公司 | Belt pulley |
| CN107687512A (en) * | 2016-08-05 | 2018-02-13 | 株式会社日立制作所 | Pulley |
| CN107687512B (en) * | 2016-08-05 | 2021-02-05 | 株式会社日立制作所 | Pulley wheel |
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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: 20141015 Effective date of abandoning: 20160914 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |