CN113639020A - Synchronous belt transmission device - Google Patents
Synchronous belt transmission device Download PDFInfo
- Publication number
- CN113639020A CN113639020A CN202010344031.4A CN202010344031A CN113639020A CN 113639020 A CN113639020 A CN 113639020A CN 202010344031 A CN202010344031 A CN 202010344031A CN 113639020 A CN113639020 A CN 113639020A
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- Prior art keywords
- synchronous belt
- fixing
- piece
- movable
- belt wheel
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 76
- 230000005540 biological transmission Effects 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 240000004282 Grewia occidentalis Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/02—Gearings for conveying rotary motion by endless flexible members with belts; with V-belts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0876—Control or adjustment of actuators
- F16H2007/088—Manual adjustment
Abstract
The invention discloses a synchronous belt transmission device which comprises an open synchronous belt, a driving belt wheel, a driven belt wheel and a movable piece moving along a preset direction along with the running of a walking belt, wherein the synchronous belt bypasses the driving belt wheel and the driven belt wheel, is meshed with the driving belt wheel and the driven belt wheel, and one end of the synchronous belt is relatively fixed with the movable piece; the tension adjusting mechanism comprises a first fixing piece, a first part with an external thread and a second part with an internal thread, the first fixing piece and the other end of the synchronous belt are relatively fixed, the first fixing piece is connected with the movable piece through the first part and the second part, the first part is in threaded connection with the second part, and the first part and/or the second part can be rotated to drive the first fixing piece to move along the preset direction relative to the movable piece. The tension adjusting mechanism is simple in structure and convenient to operate, a tension wheel does not need to be introduced, the number of parts of a synchronous belt transmission system is reduced, and the structure of a traditional synchronous belt system is simplified.
Description
Technical Field
The invention relates to a synchronous belt transmission device.
Background
The synchronous belt transmission system needs to apply a certain tension to the synchronous belt, so that the loose edge of the synchronous belt still has certain tension without being loosened under the load action in the use process. The common methods for tensioning the synchronous belt comprise the following two methods:
1) the distance between the belt wheels is adjusted. Taking a two-wheel system as an example, tension can be applied to the timing belt by adjusting the distance between the pulleys. This method typically makes one of the pulleys fixed and the other adjustable.
2) A tensioning wheel is added. Tension can be applied to the synchronous belt by adding a tension wheel to the synchronous belt transmission system. In this method, the tension pulley is usually arranged at the inner side or the outer side of the middle section of the span of the synchronous belt and is made adjustable, so that the tension pulley extrudes the belt along the direction perpendicular to the running direction of the synchronous belt, and the synchronous belt obtains the tension.
However, adjusting the distance between the pulleys requires designing a certain pulley into an adjustable mechanism, the structure is complex, and the parallelism of the axes of the pulleys needs to be additionally ensured in the process of adjusting the tension, which increases the difficulty of adjustment. The method of adding the tension wheel introduces additional components into the system, and for a lifting system installed on an industrial vehicle, the system is often required to be compact in structure and few in components, so that the method of adding the tension wheel is not suitable.
Disclosure of Invention
The invention provides a synchronous belt transmission device, which overcomes the defects of a synchronous belt tensioning mode in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a synchronous belt transmission device comprises an open synchronous belt, a driving belt wheel, a driven belt wheel and a movable piece moving along a preset direction along with the running of a walking belt, wherein the synchronous belt bypasses the driving belt wheel and the driven belt wheel, is meshed with the driving belt wheel and the driven belt wheel, and one end of the synchronous belt is relatively fixed with the movable piece; the tension adjusting mechanism comprises a first fixing piece, a first part with an external thread and a second part with an internal thread, the first fixing piece and the other end of the synchronous belt are relatively fixed, the first fixing piece is connected with the movable piece through the first part and the second part, the first part is in threaded connection with the second part, and the first part and/or the second part can be rotated to drive the first fixing piece to move along the preset direction relative to the movable piece.
Furthermore, the first fixing member is provided with a boss, the moving member is provided with a through groove, a connecting portion is arranged in the through groove, the boss is placed in the through groove, and the first component penetrates through the boss and the connecting portion along the preset direction.
Further, the first component is an adjusting bolt, and the second component is an adjusting nut; the boss deviates from the one end inboard of connecting portion is equipped with first heavy groove, adjusting bolt's head is spacing in this first heavy groove, perhaps, adjusting bolt's head weld in the boss.
Further, the first part can be screwed and the second part is fixed on the first fixed part or the first movable part, or the second part can be screwed and the first part is fixed on the first fixed part or the first movable part.
Furthermore, the tension adjusting mechanism further comprises at least one auxiliary fixing component, the auxiliary fixing component comprises a fixing bolt and a fixing nut, the first fixing component is provided with at least one strip hole located in the preset direction, and a screw rod of the fixing bolt penetrates through the strip hole and the moving part and is screwed with the fixing nut.
Furthermore, a second sinking groove is formed in the inner side of one end, away from the fixing nut, of the strip hole, and the head of the fixing bolt is limited in the second sinking groove.
Furthermore, the number of the strip holes is two, the two strip holes are arranged in parallel and are positioned on two opposite sides of the first component, and each strip hole corresponds to at least one auxiliary fixing component.
Furthermore, the tension adjusting mechanism further comprises a first clamping plate, the first clamping plate is fixedly connected with the first fixing piece, the other end of the synchronous belt is clamped, and the first clamping plate is meshed with the other end of the synchronous belt.
Furthermore, hold-in range one end through a fixed establishment with the moving part is connected, and this fixed establishment includes second splint, second mounting, the second mounting with moving part fixed connection, second splint and second mounting fixed connection will hold-in range one end is cliied, and the second splint with hold-in range one end meshing.
Further, the driving pulley and the driven pulley are distributed up and down, and the preset direction is the up-down direction.
Further, the movable member and/or the first fixed member are plate-shaped structures.
Compared with the prior art, the invention has the following beneficial effects:
1. the tension adjusting mechanism is simple in structure, a tension wheel does not need to be introduced, the number of parts of the synchronous belt transmission device is reduced, and the structure of the traditional synchronous belt device is simplified; the tension adjusting mechanism realizes tension adjustment by rotating the first part or the second part, and is very convenient and fast to operate. In addition, one end of the synchronous belt is fixed, and the other end of the synchronous belt is adjustable, so that the number of movable parts required by the tension adjusting mechanism is reduced to the greatest extent, and the failure risk of the mechanism is reduced. Particularly, when the tension adjusting mechanism is applied to heavy load transportation or working condition lifting, the connection part of the tension adjusting mechanism generates huge stress due to frequent starting and stopping of the load mass or the system.
2. The boss, the through groove and the connecting portion are arranged, so that the first fixing piece is more convenient to connect with the moving piece, and the first part is more easily located in the preset direction. The head of the adjusting bolt can be limited by the arrangement of the first sinking groove, so that the adjusting bolt is prevented from rotating.
3. The tension adjusting mechanism further comprises the auxiliary fixing component which is matched with the strip hole arranged on the first fixing piece, so that the tension of the tension adjusting mechanism for adjusting the synchronous belt is not influenced, and the synchronous belt is not loosened relative to the moving piece when the first part and/or the second part fails, so that the use safety is improved.
The invention is further explained in detail with the accompanying drawings and the embodiments; however, a synchronous belt drive device of the present invention is not limited to the embodiment.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a partially enlarged view of a first embodiment of the present invention (embodying the front of the movable member);
FIG. 3 is a second enlarged partial schematic view of the present invention (the moving member is not shown, embodying the boss);
FIG. 4 is a schematic view of the invention on a larger scale (embodying the first sink);
FIG. 5 is a partial enlarged view of the fourth embodiment of the present invention (embodying the fixing bolt, the elongated hole);
fig. 6 is a partially enlarged schematic view of the fifth embodiment of the present invention.
Detailed Description
In an embodiment, please refer to fig. 1 to 6, the synchronous belt transmission device of the present invention includes an open synchronous belt 1, a driving pulley 2, a driven pulley 3, and a movable member 4 moving along a predetermined direction along with the running of the synchronous belt 1, wherein the synchronous belt 1 bypasses the driving pulley 2 and the driven pulley 3, and is engaged with the driving pulley 2 and the driven pulley 3, and one end of the synchronous belt 1 is relatively fixed to the movable member 4; the tension adjusting mechanism 5 comprises a first fixing piece 51, a first part with an external thread and a second part with an internal thread, wherein the first fixing piece 51 is fixed relative to the other end of the synchronous belt 1, the first fixing piece 51 is connected with the movable piece 4 through the first part and the second part, the first part is in threaded connection with the second part, and the first part and/or the second part can be rotated to drive the first fixing piece 51 to move relative to the movable piece 4 along the preset direction. The first member is specifically the adjusting bolt 53, and the second member is the adjusting nut 54, but is not limited thereto. In other embodiments, the first component may be a screw bolt, and the second component is a hollow component (not a nut) with internal threads, and is fixed with the first fixed component or the movable component, and the fixing mode may be a welding mode or an integral molding mode, etc. In other embodiments, the second component may be a screw or other component (not a bolt) with external threads, and the first component is fixed with the first fixed component or the movable component by welding or integral molding. The movable member 4 and the first fixed member 51 are plate-shaped structures. Therefore, the movable member may be referred to as a movable plate, and the first fixed member may be referred to as a first fixed plate. The first part and the second part can be rotated, which means that the first part and the second part can be rotated, but in actual adjustment, the first part and the second part are not suitable to be rotated simultaneously, but can be rotated successively. In the case where both the first member and the second member can be rotationally operated, at the time of adjustment, the first member may be fixed by means of a tool and only the second member may be rotated, or the second member may be fixed by means of a tool and only the first member may be rotated.
In this embodiment, the driving pulley 2 and the driven pulley 3 are distributed vertically, one end of the synchronous belt 1 is located above, the other end of the synchronous belt is located below, and the preset direction is vertical direction, so that the movable member 4 can be lifted along with the operation of the walking belt 1. Since the predetermined direction is the up-down direction, the first fixed member 51 can move along the up-down direction with respect to the movable member 4, and specifically, the first fixed member 51 can move up or down with respect to the movable member 4.
In this embodiment, as shown in fig. 2 to 4, a boss 511 is disposed on a side of the first fixing member 51 facing the movable member 4, the movable member 4 is disposed with a through slot 41, a connecting portion 42 is disposed in the through slot 41, the boss 511 is disposed in the through slot 41, and a screw of the adjusting bolt 53 passes through the boss 511 and the connecting portion 42 along the predetermined direction, and the adjusting nut 54 is screwed on. The through groove 41 is a long strip-shaped structure arranged along the preset direction (i.e., up-down direction), and can guide the movement of the boss 511. The connecting portion 42 is located between two ends of the through slot 41, and more particularly, is located at a middle or middle-upper portion of the through slot 41, and the boss 511 is located at a lower side of the connecting portion 42. The boss 511 limits the rotation of the adjusting bolt 53, specifically, a first sinking groove 5111 is formed in an inner side of one end of the boss 511, which is away from the connecting portion 42, the shape of the first sinking groove 51111 is adapted to the shape of the adjusting bolt 53, and the first sinking groove 5111 is a polygon, such as a hexagon, the head of the adjusting bolt 53 is limited to the first sinking groove 5111, and the adjusting bolt 53 is prevented from rotating by the first sinking groove 5111, but not limited thereto, and other manners may also be used to prevent the rotation of the adjusting bolt 53, such as a manner of welding and fixing the head of the fixing bolt 53 to the boss 511.
In this embodiment, the tension adjusting mechanism further includes at least one auxiliary fixing component, the auxiliary fixing component includes a fixing bolt 56 and a fixing nut 55, the first fixing member 51 is provided with at least one elongated hole 512 located in the predetermined direction, and a screw of the fixing bolt 56 passes through the elongated hole 512 and the movable member 4, and the fixing nut 55 is screwed on. The inner side of one end of the elongated hole 512, which is far away from the fixing nut 55, is provided with a second sinking groove 513, the head of the fixing bolt 56 is limited in the second sinking groove 513, and the second sinking groove 513 is used for stopping the fixing bolt 56.
In this embodiment, the number of the elongated holes 512 is two, and the two elongated holes 512 are arranged in parallel and located on the left and right opposite sides of the adjusting bolt 53; each strip hole 512 corresponds to at least one auxiliary fixing component, and specifically, in this embodiment, each strip hole 512 corresponds to two sets of auxiliary fixing components, so that the first fixing member 51 and the moving member 4 are in a four-corner auxiliary connection state, and thus are firmer and more stable.
In this embodiment, the tension adjusting mechanism 5 further includes a first clamping plate 52, the first clamping plate 52 is fixedly connected to the first fixing member 51, and clamps the other end of the timing belt 1, and the first clamping plate 52 is engaged with the other end of the timing belt 1. The fixing manner of the first clamping plate 52 and the first fixing member 51 may be welding, screw connection, or adhesion, and in this embodiment, the first clamping plate 52 and the first fixing member 51 are fixed by four screws 57. The fixing manner of the first fixing member and the other end of the timing belt 1 is not limited thereto.
In this embodiment, one end of the synchronous belt 1 is connected to the movable member 4 through a fixing mechanism 6, the fixing mechanism 6 includes a second clamping plate 62 and a second fixing member 61, the second fixing member 61 is fixedly connected to the movable member 4, the second clamping plate 62 is fixedly connected to the second fixing member 61, one end of the synchronous belt 1 is clamped, and the second clamping plate 62 is engaged with one end of the synchronous belt 1. The fixing manner of the second clamping plate 62 and the second fixed member 61, and the fixing manner of the second fixed member 61 and the movable member 4 can also adopt welding, screw connection, bonding, etc., and specifically, adopt four screws 63 for fixing. The fixing mode of one end of the synchronous belt and the movable piece is not limited to this. The second fixing member 61 is also a plate-shaped structure, and thus, may be referred to as a second fixing plate.
The synchronous belt transmission device can be applied to an electric lifting system of an engineering vehicle to realize lifting or falling of goods, when the synchronous belt transmission device is applied, a driving belt wheel 2 and a driven belt wheel 3 are connected with a vehicle body of the engineering vehicle through a shaft and a support, and the driving belt wheel 2 is driven by a power system; the movable part 4 is connected with a loading mechanism of the engineering vehicle.
The invention relates to a synchronous belt transmission device, the tension adjusting method of which comprises the following steps: by changing the position of the adjusting nut 54 on the adjusting bolt 53, the other fixing mechanism formed by the first fixing member 51 and the first clamping plate 52 moves up and down relative to the movable member 4, and further the other end of the synchronous belt 1 moves up and down relative to the movable member 4. The method specifically comprises the following steps: the adjusting nut 54 is tightened, and the other fixing mechanism formed by the first fixing piece 51 and the first clamping plate 52 moves upwards relative to the movable piece 4, so that the tension of the synchronous belt 1 is increased; by loosening the adjusting nut 54, the other fixing mechanism formed by the first fixing member 51 and the first clamp plate 52 is lowered relative to the mover 4, and the tension of the timing belt 1 is reduced.
The auxiliary fixing component has the following functions: when the tension of the timing belt 1 is adjusted, the fixing bolt 56 and the fixing nut 55 are tightened, and the first fixing member 51 is fixed to the movable member 4. When the adjusting bolt 53 and the adjusting nut 54 are failed accidentally, the synchronous belt 1 cannot be loosened relative to the movable piece 4, so that the use safety is improved.
According to the synchronous belt transmission device, the tension adjusting mechanism 5 is simple in structure, a tension wheel does not need to be introduced, the number of parts of a transmission system of the synchronous belt 1 is reduced, and the structure of a traditional system of the synchronous belt 1 is simplified. In addition, the tension adjusting mechanism 5 of the present invention only needs to be rotated by a wrench to rotate the adjusting nut 54 during the actual operation, so the operation is very convenient.
The above embodiment is only used to further illustrate a synchronous belt transmission device of the present invention, but the present invention is not limited to the embodiment, and any simple modification, equivalent change and modification of the first fixed member 51, the movable member 4 and the like of the above embodiment according to the technical spirit of the present invention fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. A synchronous belt transmission device comprises an open synchronous belt, a driving belt wheel, a driven belt wheel and a movable part moving along a preset direction along with the running of a walking belt, wherein the synchronous belt bypasses the driving belt wheel and the driven belt wheel, is meshed with the driving belt wheel and the driven belt wheel, and one end of the synchronous belt is relatively fixed with a movable plate; the method is characterized in that: the tension adjusting mechanism comprises a first fixing piece, a first part with an external thread and a second part with an internal thread, the first fixing piece and the other end of the synchronous belt are relatively fixed, the first fixing piece is connected with the movable piece through the first part and the second part, the first part is in threaded connection with the second part, and the first part and/or the second part can be rotated to drive the first fixing piece to move along the preset direction relative to the movable piece.
2. The synchronous belt drive of claim 1, wherein: the first fixing piece is provided with a boss, the moving piece is provided with a through groove, a connecting portion is arranged in the through groove, the boss is placed in the through groove, and the first component penetrates through the boss and the connecting portion along the preset direction.
3. The synchronous belt drive of claim 2, wherein: the first component is an adjusting bolt, and the second component is an adjusting nut; the boss deviates from the one end inboard of connecting portion is equipped with first heavy groove, adjusting bolt's head is spacing in this first heavy groove, perhaps, adjusting bolt's head weld in the boss.
4. The synchronous belt drive of claim 1, wherein: the first part can be screwed and the second part is fixed on the first fixed part or the first movable part, or the second part can be screwed and the first part is fixed on the first fixed part or the first movable part.
5. The synchronous belt drive of any one of claims 1-4, wherein: the tension adjusting mechanism further comprises at least one auxiliary fixing component, the auxiliary fixing component comprises a fixing bolt and a fixing nut, the first fixing component is provided with at least one strip hole located in the preset direction, and a screw rod of the fixing bolt penetrates through the strip hole and the moving part and is screwed with the fixing nut.
6. The synchronous belt drive of claim 5, wherein: the inner side of one end, far away from the fixing nut, of the strip hole is provided with a second sinking groove, and the head of the fixing bolt is limited in the second sinking groove.
7. The synchronous belt drive of claim 5, wherein: the number of the strip holes is two, the two strip holes are arranged in parallel and are positioned on two opposite sides of the first part, and each strip hole corresponds to at least one auxiliary fixing component.
8. The synchronous belt drive of claim 1, wherein: the tension adjusting mechanism further comprises a first clamping plate, the first clamping plate is fixedly connected with the first fixing piece, the other end of the synchronous belt is clamped, and the first clamping plate is meshed with the other end of the synchronous belt.
9. The synchronous belt drive of claim 1, wherein: one end of the synchronous belt is connected with the movable part through a fixing mechanism, the fixing mechanism comprises a second clamping plate and a second fixing part, the second fixing part is fixedly connected with the movable part, the second clamping plate is fixedly connected with the second fixing part, one end of the synchronous belt is clamped, and the second clamping plate is meshed with one end of the synchronous belt.
10. The synchronous belt drive of claim 1, wherein: the driving belt wheel and the driven belt wheel are distributed up and down, and the preset direction is the up-down direction; the movable piece and/or the first fixed piece are of plate-shaped structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010344031.4A CN113639020A (en) | 2020-04-27 | 2020-04-27 | Synchronous belt transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010344031.4A CN113639020A (en) | 2020-04-27 | 2020-04-27 | Synchronous belt transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113639020A true CN113639020A (en) | 2021-11-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010344031.4A Pending CN113639020A (en) | 2020-04-27 | 2020-04-27 | Synchronous belt transmission device |
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| CN (1) | CN113639020A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205187150U (en) * | 2015-11-16 | 2016-04-27 | 珠海格力电器股份有限公司 | Hold -in range adjusting device |
| CN109723777A (en) * | 2018-12-25 | 2019-05-07 | 深圳市优必选科技有限公司 | Synchronous belt tension device |
| CN110872073A (en) * | 2018-08-31 | 2020-03-10 | 因特利格雷特总部有限责任公司 | Carriage lift assembly for storage handling and article retrieval |
-
2020
- 2020-04-27 CN CN202010344031.4A patent/CN113639020A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205187150U (en) * | 2015-11-16 | 2016-04-27 | 珠海格力电器股份有限公司 | Hold -in range adjusting device |
| CN110872073A (en) * | 2018-08-31 | 2020-03-10 | 因特利格雷特总部有限责任公司 | Carriage lift assembly for storage handling and article retrieval |
| CN109723777A (en) * | 2018-12-25 | 2019-05-07 | 深圳市优必选科技有限公司 | Synchronous belt tension device |
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