CN107917179B - Hydraulic loading assembled combined synchronous pulley with overload protection - Google Patents
Hydraulic loading assembled combined synchronous pulley with overload protection Download PDFInfo
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- CN107917179B CN107917179B CN201711198598.XA CN201711198598A CN107917179B CN 107917179 B CN107917179 B CN 107917179B CN 201711198598 A CN201711198598 A CN 201711198598A CN 107917179 B CN107917179 B CN 107917179B
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- hydraulic
- loading cylinder
- hydraulic loading
- synchronous pulley
- jacking column
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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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/52—Pulleys or friction discs of adjustable construction
- F16H55/54—Pulleys or friction discs of adjustable construction of which the bearing parts are radially adjustable
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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
- F16H35/00—Gearings or mechanisms with other special functional features
- F16H35/10—Arrangements or devices for absorbing overload or preventing damage by overload
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a hydraulic loading assembled type combined synchronous belt wheel with overload protection, wherein an upper hydraulic loading cylinder, a lower hydraulic loading cylinder, a left hydraulic loading cylinder and a right hydraulic loading cylinder are processed in a hub of the synchronous belt wheel along the radial direction, an oil inlet hole is processed in the left side of the hub of the synchronous belt wheel along the central axis direction, a hydraulic piston is installed in the upper hydraulic loading cylinder, the lower hydraulic loading cylinder, the left hydraulic loading cylinder and the right hydraulic loading cylinder, friction plates are welded at the top end of an upper hydraulic jacking column, the bottom end of a lower hydraulic jacking column, the left end of the left hydraulic jacking column and the right end of the right hydraulic jacking column, supporting columns are welded on the circumference of the outer side of the hub of the synchronous belt wheel, the number of the supporting columns is four, the four supporting columns are uniformly distributed on the circumference of the outer side of the hub of the synchronous belt wheel, and a; the invention has scientific and reasonable design, simple structure and convenient use.
Description
Technical Field
The invention relates to a hydraulic loading assembled combined synchronous belt pulley with overload protection, and belongs to the technical field of synchronous belt pulleys.
Background
Synchronous belt drives, i.e. meshing belt drives, transmit motion by meshing equally spaced transverse teeth on the inner surface of the drive belt with corresponding tooth grooves on the pulley. Compared with the friction belt transmission, the belt wheel and the transmission belt of the synchronous belt transmission do not slide relatively, and the strict transmission ratio can be ensured. The synchronous belt transmission has the advantages of belt transmission, chain transmission and gear transmission, and has no relative sliding between the belt and the belt wheel and can ensure accurate transmission ratio because the belt and the belt wheel are engaged to transmit motion and power. The linear speed can reach 50m/s, the transmission ratio can reach 10, and the efficiency can reach 98%. The transmission noise is less than that of belt transmission, chain transmission and gear transmission, the wear resistance is good, oil lubrication is not needed, and the service life is longer than that of a friction belt.
The existing synchronous belt wheel mostly adopts an integral structure, the synchronous belt wheel drives the synchronous belt transmission process, if the load is too large, the slipping phenomenon often occurs between the synchronous belt and the synchronous belt wheel, the abrasion of the synchronous belt is caused, the burning of the synchronous belt can be caused under the serious condition, and the safety production accident is caused.
Disclosure of Invention
Aiming at the problems, the technical problem to be solved by the invention is to provide a hydraulic loading assembled type combined synchronous pulley with overload protection, wherein an upper hydraulic loading cylinder, a lower hydraulic loading cylinder, a left hydraulic loading cylinder and a right hydraulic loading cylinder are machined in a hub of the synchronous pulley along the radial direction, hydraulic pistons are installed in the upper hydraulic loading cylinder, the lower hydraulic loading cylinder, the left hydraulic loading cylinder and the right hydraulic loading cylinder, friction plates are welded at the top end of an upper hydraulic tightening column, the bottom end of a lower hydraulic tightening column, the left end of the left hydraulic tightening column and the right end of the right hydraulic tightening column, a gear sleeve of the synchronous pulley is sleeved on the hub of the synchronous pulley, and the overload protection in the transmission process of a synchronous belt of the combined pulley is realized by controlling the friction force between the gear sleeve of the synchronous pulley and the friction plates.
The invention relates to a hydraulic loading assembled combined synchronous pulley with overload protection, which structurally comprises: the synchronous belt wheel hub is internally provided with an upper hydraulic loading cylinder, a lower hydraulic loading cylinder, a left hydraulic loading cylinder and a right hydraulic loading cylinder along the radial direction, the upper hydraulic loading cylinder, the lower hydraulic loading cylinder, the left hydraulic loading cylinder and the right hydraulic loading cylinder are uniformly distributed along the circumference of the synchronous belt wheel hub, the left side of the synchronous belt wheel hub is provided with an oil inlet along the central axis direction, the oil inlet is communicated with the upper hydraulic loading cylinder, the lower hydraulic loading cylinder, the left hydraulic loading cylinder and the right hydraulic loading cylinder, the hydraulic pistons are arranged in the upper hydraulic loading cylinder, the lower hydraulic loading cylinder, the left hydraulic loading cylinder and the right hydraulic loading cylinder, the upper hydraulic jacking column is fixedly arranged on a hydraulic piston in the upper hydraulic loading cylinder, the lower hydraulic jacking column is fixedly arranged on a hydraulic piston in the lower hydraulic loading cylinder, the left hydraulic jacking column is fixedly arranged on the hydraulic piston in the left hydraulic loading cylinder, the right hydraulic jacking column is fixedly arranged on the hydraulic piston in the right hydraulic loading cylinder, the friction plates are welded at the top end of the upper hydraulic jacking column, the bottom end of the lower hydraulic jacking column, the left end of the left hydraulic jacking column and the right end of the right hydraulic jacking column, the supporting columns are welded on the periphery of the outer side of the synchronous pulley hub, the number of the supporting columns is four, the four supporting columns are uniformly distributed on the periphery of the outer side of the synchronous pulley hub, and the synchronous pulley gear sleeve is sleeved on the synchronous pulley hub
Furthermore, a sealing pipe thread is processed on the side wall of the oil inlet hole, and the one-way valve is installed on the oil inlet hole through the sealing pipe thread.
Further, the right side of synchronous pulley wheel hub process screw hole, the mounting disc passes through the threaded hole of bolt mounting on synchronous pulley wheel hub, the left end welding of synchronous pulley drive shaft central authorities on the mounting disc, the right-hand member of synchronous pulley drive shaft is installed in the drive motor.
Furthermore, the top of support column process the recess, spherical roller is embedded into the recess, and spherical roller is tangent with the inner wall of hold-in range pulley gear sleeve.
Furthermore, the upper hydraulic jacking column, the lower hydraulic jacking column, the left hydraulic jacking column and the right hydraulic jacking column are provided with limiting block cylindrical blocks, the limiting block cylindrical blocks are cylindrical, the diameter of each limiting block cylindrical block is the same as that of a hydraulic piston, and the friction plates, the synchronous pulley gear sleeves and the synchronous pulley hubs are all processed by cast iron materials.
The principle of the invention is as follows: synchronous pulley gear sleeve cover realizes the overload protection of combination band pulley synchronous belt drive in-process through the size of the frictional force between control synchronous pulley gear sleeve and the friction disc on synchronous pulley wheel hub: when the synchronous belt transmission is overloaded, the resistance received by the synchronous belt wheel gear sleeve is increased, the friction force between the synchronous belt wheel gear sleeve and the friction plate is not enough to drive the synchronous belt wheel gear sleeve to rotate, and the relative sliding (slipping) occurs between the synchronous belt wheel gear sleeve and the synchronous belt wheel hub, so that only the synchronous belt wheel hub rotates, and the synchronous belt wheel gear sleeve is static, thereby realizing the overload protection, preventing the relative sliding between the synchronous belt and the synchronous belt wheel gear sleeve, and wearing the synchronous belt.
The overload protection control method of the invention comprises the following steps: the one-way valve is connected with the hydraulic pump through the high-pressure oil pipe, the pressure gauge is installed on the high-pressure oil pipe, the hydraulic pump is started, high-pressure hydraulic oil is filled into the oil inlet hole, the pressure of the high-pressure hydraulic oil is read through the pressure gauge, the upper hydraulic jacking column moves upwards under the pressure action of the high-pressure hydraulic oil, the lower hydraulic jacking column moves downwards, the left hydraulic jacking column moves leftwards, and the right hydraulic jacking column moves rightwards, so that the contact pressure between the friction plate and the inner wall of the synchronous pulley gear sleeve is increased, the friction force between the friction plate and the synchronous pulley gear sleeve is further increased, and the overload protection control is realized.
The invention has the beneficial effects that: the invention adopts the design that an upper hydraulic loading cylinder, a lower hydraulic loading cylinder, a left hydraulic loading cylinder and a right hydraulic loading cylinder are processed in a synchronous pulley hub along the radial direction, hydraulic pistons are arranged in the upper hydraulic loading cylinder, the lower hydraulic loading cylinder, the left hydraulic loading cylinder and the right hydraulic loading cylinder, friction plates are welded at the top end of an upper hydraulic jacking column, the bottom end of the lower hydraulic jacking column, the left end of the left hydraulic jacking column and the right end of the right hydraulic jacking column, a synchronous pulley gear sleeve is sleeved on the synchronous pulley hub, and overload protection in the transmission process of a synchronous belt of a combined pulley is realized by controlling the friction force between the synchronous pulley gear sleeve and the friction plates.
Drawings
For ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a schematic view of the internal structure of the composite timing pulley of the present invention;
FIG. 2 is a schematic view of the mounting structure of the composite timing pulley of the present invention;
FIG. 3 is a first three-dimensional view of the assembled synchronous pulley of the present invention;
FIG. 4 is a second three-dimensional view of the assembled timing pulley of the present invention;
fig. 5 is a schematic diagram of the overload protection control method of the present invention.
In the figure: 1-synchronous pulley gear sleeve; 2-synchronous pulley hub; 3-installing a hydraulic loading cylinder; 4-lower the hydraulic loading cylinder; 5-a left hydraulic loading cylinder; 6-right hydraulic loading cylinder; 7-hydraulic jacking and tightening the column; 8-lower hydraulic jacking columns; 9-left hydraulic jacking column; 10-right hydraulic jacking column; 11-a hydraulic piston; 12-a support column; 13-friction plate; 14-a spherical roller; 15-limiting cylindrical blocks; 16-a threaded hole; 17-mounting a disc; 18-synchronous pulley drive shaft; 19-a drive motor; 20-bolt; 21-a one-way valve; 22-sealing the pipe thread; 23-oil inlet hole; 24-a groove; 25-mounting holes; 26-high pressure oil pipe; 27-a hydraulic pump; 28-pressure gauge.
Detailed Description
In order that the objects, aspects and advantages of the invention will become more apparent, the invention will be described by way of example only, and in connection with the accompanying drawings. It is to be understood that such description is merely illustrative and not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1, fig. 2 and fig. 3, the following technical solutions are adopted in the present embodiment: a hydraulic loading assembled type combined synchronous pulley with overload protection structurally comprises: synchronous pulley gear sleeve 1, synchronous pulley hub 2, upper hydraulic jacking column 7, lower hydraulic jacking column 8, left hydraulic jacking column 9, right hydraulic jacking column 10, hydraulic piston 11, support column 12, friction plate 13, spherical roller 14, synchronous pulley drive shaft 18, driving motor 19, check valve 21, synchronous pulley hub 2 in along radial direction processing go up hydraulic loading cylinder 3, lower hydraulic loading cylinder 4, left hydraulic loading cylinder 5, right hydraulic loading cylinder 6, go up hydraulic loading cylinder 3, lower hydraulic loading cylinder 4, left hydraulic loading cylinder 5 and right hydraulic loading cylinder 6 along synchronous pulley hub 2 circumference evenly distributed, synchronous pulley hub 2's left side along central axis direction processing inlet port 23, inlet port 23 and last hydraulic loading cylinder 3, lower hydraulic loading cylinder 4, left hydraulic loading cylinder 5 and right hydraulic loading cylinder 6 intercommunication, hydraulic piston 11 install at last hydraulic loading cylinder 2, In the lower hydraulic loading cylinder 3, the left hydraulic loading cylinder 4 and the right hydraulic loading cylinder 5, an upper hydraulic jacking column 7 is fixedly arranged on a hydraulic piston 11 in the upper hydraulic loading cylinder 3, a lower hydraulic jacking column 8 is fixedly arranged on the hydraulic piston 11 in the lower hydraulic loading cylinder 4, a left hydraulic jacking column 9 is fixedly arranged on the hydraulic piston 11 in the left hydraulic loading cylinder 5, a right hydraulic jacking column 10 is fixedly arranged on the hydraulic piston 11 in the right hydraulic loading cylinder 6, the friction plate 13 is welded at the top end of the upper hydraulic tightening column 7, the bottom end of the lower hydraulic tightening column 8, the left end of the left hydraulic tightening column 9 and the right end of the right hydraulic tightening column 10, the supporting columns 12 are welded on the circumference of the outer side of the synchronous pulley hub 2, the number of the supporting columns 12 is four, the four supporting columns 12 are uniformly distributed on the circumference of the outer side of the synchronous pulley hub 2, and the synchronous pulley gear sleeve 1 is sleeved on the synchronous pulley hub 2.
As shown in FIG. 2, a seal pipe thread 22 is formed on the sidewall of the oil inlet hole 23, and the check valve 21 is mounted on the oil inlet hole 23 through the seal pipe thread 22.
As shown in fig. 2 and 4, a threaded hole 16 is formed in the right side of the synchronous pulley hub 2, a mounting plate 17 is mounted in the threaded hole 16 of the synchronous pulley hub 2 through a bolt 20, the left end of the synchronous pulley driving shaft 18 is welded to the center of the mounting plate 17, and the right end of the synchronous pulley driving shaft 18 is mounted in a driving motor 19.
As shown in fig. 1 and 2, a groove 24 is processed at the top end of the supporting column 12, the spherical roller 14 is embedded into the groove 24, and the spherical roller 14 is tangent to the inner wall of the synchronous pulley gear sleeve 1.
As shown in fig. 1, the upper hydraulic jacking column 7, the lower hydraulic jacking column 8, the left hydraulic jacking column 9 and the right hydraulic jacking column 10 are provided with limiting block cylindrical blocks 15, the limiting block cylindrical blocks 15 are cylindrical, the diameter of each limiting block cylindrical block 15 is the same as that of the hydraulic piston 11, and the friction plate 13, the synchronous pulley gear sleeve 1 and the synchronous pulley hub 2 are all made of cast iron.
The principle of the invention is as follows: as figure 1, synchronous pulley gear sleeve 1 is sleeved on synchronous pulley hub 2, and the overload protection in the transmission process of the combined pulley synchronous belt is realized by controlling the friction force between synchronous pulley gear sleeve 1 and friction plate 13: when the overload appears in synchronous belt drive, the resistance increase that synchronous pulley wheel tooth cover 1 received, frictional force between synchronous pulley wheel tooth cover 1 and the friction disc 13 is not enough to drive synchronous pulley wheel tooth cover 1 rotatory, relative slip (skid) appears between synchronous pulley wheel tooth cover 1 and the synchronous pulley wheel hub 2, therefore, only synchronous pulley wheel hub 2 is rotatory, and synchronous pulley wheel tooth cover 1 is static, thereby realize overload protection, prevent relative slip between synchronous belt and the synchronous pulley wheel tooth cover 2, wearing and tearing hold-in range.
The overload protection control method of the invention comprises the following steps: as shown in fig. 1 and 5, the check valve 21 is connected to a hydraulic pump 27 through a high-pressure oil pipe 26, a pressure gauge 28 is installed on the high-pressure oil pipe 26, the hydraulic pump 27 is started, high-pressure hydraulic oil is filled into the oil inlet hole 23, the pressure of the high-pressure hydraulic oil is read by the pressure gauge 28, under the pressure action of the high-pressure hydraulic oil, the upper hydraulic tightening column 7 moves upwards, the lower hydraulic tightening column 8 moves downwards, the left hydraulic tightening column 9 moves leftwards, and the right hydraulic tightening column 10 moves rightwards, so that the contact pressure between the friction plate 13 and the inner wall of the synchronous pulley gear sleeve 1 is increased, the friction force between the friction plate 13 and the synchronous pulley gear sleeve 1 is increased, and the overload protection control is realized.
The foregoing shows and describes the fundamental principles and features of the invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. A hydraulic loading assembled type combined synchronous pulley with overload protection is characterized in that: the structure includes: the synchronous belt wheel hub is internally provided with an upper hydraulic loading cylinder, a lower hydraulic loading cylinder, a left hydraulic loading cylinder and a right hydraulic loading cylinder along the radial direction, the upper hydraulic loading cylinder, the lower hydraulic loading cylinder, the left hydraulic loading cylinder and the right hydraulic loading cylinder are uniformly distributed along the circumference of the synchronous belt wheel hub, the left side of the synchronous belt wheel hub is provided with an oil inlet along the central axis direction, the oil inlet is communicated with the upper hydraulic loading cylinder, the lower hydraulic loading cylinder, the left hydraulic loading cylinder and the right hydraulic loading cylinder, the hydraulic pistons are arranged in the upper hydraulic loading cylinder, the lower hydraulic loading cylinder, the left hydraulic loading cylinder and the right hydraulic loading cylinder, an upper hydraulic jacking column is fixedly arranged on a hydraulic piston in an upper hydraulic loading cylinder, a lower hydraulic jacking column is fixedly arranged on the hydraulic piston in a lower hydraulic loading cylinder, a left hydraulic jacking column is fixedly arranged on the hydraulic piston in a left hydraulic loading cylinder, a right hydraulic jacking column is fixedly arranged on the hydraulic piston in a right hydraulic loading cylinder, friction plates are welded on the top end of the upper hydraulic jacking column, the bottom end of the lower hydraulic jacking column, the left end of the left hydraulic jacking column and the right end of the right hydraulic jacking column, the four supporting columns are welded on the circumference of the outer side of a synchronous pulley hub, the four supporting columns are uniformly distributed on the circumference of the outer side of the synchronous pulley hub, a synchronous pulley gear sleeve is sleeved on the synchronous pulley hub, a sealing pipe thread is processed on the side wall of the oil inlet, and a one-way valve is arranged on the oil inlet through the sealing pipe thread, the right side of synchronous pulley wheel hub process screw hole, the mounting disc passes through the bolt and installs in the threaded hole on synchronous pulley wheel hub, the left end welding of synchronous pulley drive shaft central authorities on the mounting disc, the right-hand member of synchronous pulley drive shaft is installed in driving motor, the top of support column process the recess, spherical roller imbeds in the recess, spherical roller is tangent with the inner wall of synchronous pulley wheel tooth cover, last hydraulic pressure tight post, lower hydraulic pressure tight post, left hydraulic pressure tight post, right hydraulic pressure tight post on processing stopper cylinder piece, stopper cylinder piece is cylindricly, the diameter of stopper cylinder piece is the same with the diameter of hydraulic piston, friction disc and synchronous pulley wheel tooth cover, synchronous pulley wheel hub all adopt cast iron material processing to form.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711198598.XA CN107917179B (en) | 2017-11-26 | 2017-11-26 | Hydraulic loading assembled combined synchronous pulley with overload protection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711198598.XA CN107917179B (en) | 2017-11-26 | 2017-11-26 | Hydraulic loading assembled combined synchronous pulley with overload protection |
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| Publication Number | Publication Date |
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| CN107917179A CN107917179A (en) | 2018-04-17 |
| CN107917179B true CN107917179B (en) | 2020-08-18 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878521B (en) * | 2020-05-23 | 2021-10-29 | 宜兴市信拓智能装备制造有限公司 | Hydraulic loading type synchronous belt pulley transmission overload protection and alarm device |
| CN111878522A (en) * | 2020-05-23 | 2020-11-03 | 李涛涛 | Synchronous pulley transmission device with overload protection and alarm and built-in loading hydraulic cylinder |
| CN111750050B (en) * | 2020-07-01 | 2021-07-23 | 嵊州市非标链轮有限公司 | Chain wheel capable of eliminating transmission fluctuation |
| CN111942922B (en) * | 2020-09-18 | 2023-08-08 | 玉田县团结包装机械有限公司 | Automatic feeding and conveying device for printing and packaging |
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| CN1664415A (en) * | 2004-01-18 | 2005-09-07 | 贝克莱特公开股份有限公司 | Device for transferring torque from electromotor to compressor |
| JP3744627B2 (en) * | 1996-11-25 | 2006-02-15 | Ｎｔｎ株式会社 | Auxiliary drive pulley |
| JP2007309452A (en) * | 2006-05-19 | 2007-11-29 | Toyota Motor Corp | Flywheel |
| CN102410340A (en) * | 2011-11-25 | 2012-04-11 | 徐州宇家化工科技有限公司 | Overload protection flywheel structure |
| CN103453072A (en) * | 2012-05-31 | 2013-12-18 | 新沂市骆马湖水产品科技有限公司 | Overload protection type flywheel |
-
2017
- 2017-11-26 CN CN201711198598.XA patent/CN107917179B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3744627B2 (en) * | 1996-11-25 | 2006-02-15 | Ｎｔｎ株式会社 | Auxiliary drive pulley |
| CN1664415A (en) * | 2004-01-18 | 2005-09-07 | 贝克莱特公开股份有限公司 | Device for transferring torque from electromotor to compressor |
| JP2007309452A (en) * | 2006-05-19 | 2007-11-29 | Toyota Motor Corp | Flywheel |
| CN102410340A (en) * | 2011-11-25 | 2012-04-11 | 徐州宇家化工科技有限公司 | Overload protection flywheel structure |
| CN103453072A (en) * | 2012-05-31 | 2013-12-18 | 新沂市骆马湖水产品科技有限公司 | Overload protection type flywheel |
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| CN107917179A (en) | 2018-04-17 |
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Inventor after: Zheng Shizhu Inventor after: Zhang Peng Inventor after: Li Taotao Inventor before: Li Taotao |
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Effective date of registration: 20200721 Address after: 363900 Changtai, Zhangzhou County, Fujian, Wuan Applicant after: CHANGTAI COUNTY HAILI MACHINERY MANUFACTURING Co.,Ltd. Address before: 454000 Henan New District of Jiaozuo, the No. 801 Henan Road, industry and information technology, Career Academy Applicant before: Li Taotao |
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Address after: 363900 Nanban, Wu'an Town, Changtai County, Zhangzhou City, Fujian Province Patentee after: Zhangzhou Haili Machinery Manufacturing Co.,Ltd. Address before: 363900 Nanban, Wu'an Town, Changtai County, Zhangzhou City, Fujian Province Patentee before: CHANGTAI COUNTY HAILI MACHINERY MANUFACTURING Co.,Ltd. |
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