CN207111858U - A kind of belt stretcher - Google Patents
A kind of belt stretcher Download PDFInfo
- Publication number
- CN207111858U CN207111858U CN201720937293.5U CN201720937293U CN207111858U CN 207111858 U CN207111858 U CN 207111858U CN 201720937293 U CN201720937293 U CN 201720937293U CN 207111858 U CN207111858 U CN 207111858U
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- Prior art keywords
- motor
- hole
- mounting hole
- fastening bolt
- belt
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- 238000009434 installation Methods 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 230000009347 mechanical transmission Effects 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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Abstract
Technical field of mechanical transmission is the utility model is related to, discloses a kind of belt stretcher.Belt stretcher includes the belt being set on the driving wheel and driven pulley of motor, and base and the motor mounting rack that is fixed on base, wherein, motor is installed on motor mounting rack by pivot shaft and relative with motor mounting rack can locked, central shaft of the pivot shaft parallel to driving wheel, it is provided with and is screwed in towards motor and the tensioning screw that is abutted with the side wall of motor of end on motor mounting rack, when screwing tensioning screw, motor is directed away from the side rotation of driven pulley around pivot shaft.Compared with prior art, the program can reduce the difficulty of tensioning operation, while improve the sensitivity of tensioning regulation.
Description
Technical field
Technical field of mechanical transmission is the utility model is related to, more particularly to a kind of belt stretcher.
Background technology
For using belt enter action edge conveying equipment, after operating after a while, be sleeved on driving wheel and
Belt on driven pulley can be plastically deformed, and so as to cause belt slack, influence the transmission efficiency of equipment, it is therefore desirable to skin
Band carries out tensioning processing.In the prior art, driving wheel or driven pulley are adjusted generally by pneumatic either hydraulic means
Position, to change the centre-to-centre spacing between driving wheel and driven pulley, the tensioning to belt is realized, this belt stretcher structure is answered
Miscellaneous, operation is more inconvenient, and it is relatively low to adjust sensitivity, easily pulls belt.
Utility model content
The utility model embodiment provides a kind of belt stretcher, to reduce the difficulty of tensioning operation, improves simultaneously
It is tensioned the sensitivity of regulation.
The utility model embodiment provides a kind of belt stretcher, including is set in the driving wheel and driven pulley of motor
On belt, and base and the motor mounting rack that is fixed on the base, wherein, the motor is filled by pivot shaft pivot
In on the motor mounting rack and can it is relative with the motor mounting rack locking, the pivot shaft is parallel to the driving wheel
Central shaft, be provided with the motor mounting rack and screw in towards the motor and end abuts with the side wall of the motor
Tensioning screw, when screwing the tensioning screw, the side that the motor is directed away from the driven pulley around the pivot shaft turns
It is dynamic.
It is rotatable with respect to motor mounting rack in motor when needing tightening belt in the utility model embodiment
Tensioning screw is turned under state, then the end of tensioning screw can produce certain thrust to the side wall of motor, make motor around
The side that pivot shaft is directed away from driven pulley rotates, and now the center spacing of the driving wheel of motor and driven pulley becomes big, belt by
Gradually be tensioned, when belt tension meets requirement, then by motor it is relative with motor mounting rack locking.Compared to existing skill
Art, this scheme reduces the difficulty of tensioning operation, and due to being gradually tensioned in belt during, turn tensioning screw when institute
The resistance being subject to can also be become larger, therefore the tensioning situation of belt can be judged by turning the operating force of tensioning screw,
The sensitivity of tensioning regulation is improved, avoids pulling belt.
Preferably, the motor mounting rack is L bracket, and the base and the first side plate of the L bracket are fixed
Connection, the end face of the motor is installed in the second side plate of the L bracket and relative with second side plate can locked, described
The side of second side plate has the lug that the axial direction towards the motor extends, and is provided with the lug described for installing
The screwed hole of tensioning screw.Using the technical scheme, the structure of motor mounting rack is relatively simple, reliable.
Preferably, the end face of the motor is provided with mounting hole, and the motor passes through fastening with the motor mounting rack
Bolt is relative to be locked.
Optionally, the quantity of the mounting hole is one, and the position that second side plate corresponds to the mounting hole is provided with
Through hole, the fastening bolt is screwed in the mounting hole through described through hole.
Preferably, it is described through hole be circular port, when the fastening bolt be in unscrew state when, the fastening bolt is
Pivot shaft.When fastening bolt unscrews, by make motor around the fastening bolt rotate can with the driving wheel of regulation motor with it is driven
The center spacing of wheel, so as to by belt tension, when belt tension meets requirement, screw the fastening bolt
By motor locking relative with motor mounting rack.The program can simplify the structure of belt stretcher.
Optionally, the quantity of the mounting hole is at least two, and second side plate corresponds to the position point of each mounting hole
Hole is not provided through, and the fastening bolt is screwed in the mounting hole through described through hole., can using the embodiment scheme
So that motor is reliably lock onto on motor mounting rack.
Preferably, at least two mounting hole is circumferentially arranged in the end face of the motor.So, positioned at different azimuth
Fastening bolt simultaneously provide fastening force to motor, make the end face stress of motor more uniform, more reliably by motor locking
In on motor mounting rack.
Preferably, described to include circular port and mounting hole through hole, the wherein quantity of circular port is one, when the fastening
Bolt is pivot shaft in fastening bolt when unscrewing state, screwed in through the circular port in the mounting hole；For each
Individual mounting hole, when motor rotates around the pivot shaft, through the fastening bolt corresponding to mounting hole screw-in in mounting hole
Stud slides in the mounting hole.Using the technical scheme, when fastening bolt unscrews, motor is around the fastening spiral shell through circular port
Bolt rotate can the driving wheel of regulation motor and the center spacing of driven pulley, so as to by belt tension, in the process,
The stud of the fastening bolt screwed in through mounting hole in mounting hole slides with the rotation of motor in mounting hole, works as belt tension
When power meets requirement, screwing all fastening bolts can be by motor locking relative with motor mounting rack.
Preferably, the circular port is provided with the offside setting of the side of lug close to second side plate.Using the skill
Art scheme, because force application point distance of the tensioning screw in the side wall of motor is relative as the fastening bolt distance of pivot shaft
Farther out, it is same turn dynamics under, tensioning screw, which applies to the pushing torque of motor, to be significantly increased, therefore the program enters one
Step reduces the difficulty of tensioning operation.
Preferably, the width of the mounting hole is more than the external diameter of the stud of the fastening bolt.When motor turns around pivot shaft
When dynamic, the movement locus of the fastening bolt screwed in through mounting hole in mounting hole is not absolute straight line, therefore can be suitably
Increase the width of mounting hole, interfered when avoiding the stud of fastening bolt from being slided in mounting hole, improve tensioning apparatus
Use reliability.
Brief description of the drawings
Fig. 1 is the structural representation one of the utility model embodiment belt stretcher；
Fig. 2 is the structural representation two of the utility model embodiment belt stretcher.
Reference：
10- motor 11- driving wheel 20- driven pulley 30- belt 40- bases
50- motor mounting rack 60- pivot shaft 70- tensioning screws the first side plates of 51-
52- the second side plate 53- lug 54- circular port 55- mounting holes
80- fastening bolts
Embodiment
In order to reduce the difficulty of tensioning operation, while the sensitivity of tensioning regulation is improved, the utility model embodiment provides
A kind of belt stretcher.It is right by the following examples to make the purpose of this utility model, technical scheme and advantage clearer
The utility model is described in further detail.
As depicted in figs. 1 and 2, the belt stretcher that the utility model embodiment provides, including it is set in motor 10
Belt 30 on driving wheel 11 and driven pulley 20, and base 40 and the motor mounting rack 50 that is fixed on base 40, wherein,
Motor 10 is installed on motor mounting rack 50 by pivot shaft 60 and relative with motor mounting rack 50 can locked, pivot shaft 60
Parallel to the central shaft of driving wheel 11, it is provided with and is screwed in towards motor 10 and the side of end and motor 10 on motor mounting rack 50
The tensioning screw 70 that wall abuts, when screwing tensioning screw 70, motor 10 is directed away from the side of driven pulley 20 around pivot shaft 60
Rotate.
, can with respect to motor mounting rack 50 in motor 10 when needing tightening belt 30 in the utility model embodiment
Tensioning screw 70 is turned in the state of rotation, then the end of tensioning screw 70 can produce certain thrust to the side wall of motor 10 and make
With, motor 10 is directed away from the side of driven pulley 20 around pivot shaft 60 and rotate, the now driving wheel 11 and driven pulley of motor 10
20 center spacing becomes big, and belt 30 is gradually tensioned, when the tensile force of belt 30 meets requirement, then by motor 10 and motor
Mounting bracket 50 is relative to lock.Compared with prior art, this scheme reduces the difficulty of tensioning operation, and due to belt 30 by
During being gradually tensioned, suffered resistance can also become larger when turning tensioning screw 70, therefore can be by turning tensioning
The operating force of screw 70 judges the tensioning situation of belt 30, improves the sensitivity of tensioning regulation, avoids pulling belt 30.
It is noted that in the utility model embodiment, can be determined to turn tensioning screw 70 according to practical experience
Operating force, the tensioning situation of belt 30 is judged with this.The mode that motor mounting rack 50 is fixed on base 40 is unlimited, can be with
It is fastenedly connected by fastener.
The specific constructive form of motor mounting rack 50 is unlimited, in preferred embodiment of the present utility model, motor installation
Support 50 is L bracket, and base 40 is fixedly connected with the first side plate 51 of L bracket, and the end face of motor 10 is installed in L bracket
The second side plate 52 and can the relative locking with the second side plate 52, there is the axial direction towards motor 10 to prolong for the side of the second side plate 52
The lug 53 stretched, the screwed hole (not shown) for installing tensioning screw 70 is provided with lug 53.Using the technical side
Case, the structure of motor mounting rack 50 are relatively simple, reliable.
The specific latch-up structure of motor 10 and motor mounting rack 50 is unlimited, in the utility model embodiment, motor 10
End face be provided with mounting hole (not shown), motor 10 passes through that fastening bolt 80 is relative to be locked with motor mounting rack 50.
In one embodiment of the present utility model, the quantity of mounting hole is one, and the second side plate corresponds to the position of mounting hole
Put and be provided through hole, fastening bolt passes through to be screwed in mounting hole through hole.Preferably, it is circular port through hole, when fastening spiral shell
For bolt in when unscrewing state, fastening bolt is pivot shaft.When fastening bolt unscrews, by making motor be rotated around the fastening bolt
Can be with the center spacing of the driving wheel of regulation motor and driven pulley, so as to by belt tension, when belt tension meets to make
During with requiring, screwing the fastening bolt can be by motor locking relative with motor mounting rack.The program can simplify belt
The structure of tight device.
As depicted in figs. 1 and 2, in another embodiment of the present utility model, the quantity of mounting hole is at least two, second
The position of the corresponding each mounting hole of side plate 52 is respectively arranged with through hole, and fastening bolt 80 passes through to be screwed in mounting hole through hole.
Using the embodiment scheme, motor 10 can be reliably lock onto on motor mounting rack 50.Mounting hole is at the end of motor 10
The specific set location in face is unlimited, it is preferred that at least two mounting holes are circumferentially arranged in the end face of motor 10.So, it is located at
The fastening bolt 80 of different azimuth provides fastening force to motor 10 simultaneously, makes the end face stress of motor 10 more uniform, more may be used
Motor 10 is lock onto on motor mounting rack 50 by ground.
In preferred embodiment of the present utility model, include circular port 54 and mounting hole 55, wherein circular port 54 through hole
Quantity be one, when fastening bolt 80 be in unscrew state when, through circular port 54 screw in mounting hole in fastening bolt be
Pivot shaft 60；For each mounting hole 55, when motor rotates around pivot shaft 60, corresponding peace is screwed in through the mounting hole 55
The stud for filling the fastening bolt 80 in hole slides in the mounting hole 55.Using the technical scheme, when fastening bolt 80 unscrews,
Motor 10 rotates around the fastening bolt through circular port 54 can the driving wheel 11 of regulation motor 10 and the center of driven pulley 20
Spacing, so as to which belt 30 is tensioned, in the process, the spiral shell of the fastening bolt 80 screwed in through mounting hole 55 in mounting hole
Post slides with the rotation of motor 10 and in mounting hole 55, when the tensile force of belt 30 meets requirement, screws all fastenings
Bolt 80 can be by motor 10 and the relative locking of motor mounting rack 50.
Please continue to refer to shown in Fig. 1 and Fig. 2, circular port 54 is provided with the offside of the side of lug 53 close to the second side plate 52
Set.Using the technical scheme, because force application point distance of the tensioning screw 70 in the side wall of motor 10 is used as pivot shaft
60 fastening bolt distance relatively far away from, it is same turn dynamics under, tensioning screw 70 applies to the pushing torque of motor 10
It can significantly increase, therefore the program reduce further the difficulty of tensioning operation.
Preferably, the width of mounting hole 55 is more than the external diameter of the stud of fastening bolt 80.When motor 10 turns 60 around pivot shaft
When dynamic, the movement locus of the fastening bolt 80 screwed in through mounting hole 55 in mounting hole is not absolute straight line, therefore can be fitted
The width of locality increase mounting hole 55, interfere, improve when avoiding the stud of fastening bolt 80 from being slided in mounting hole 55
The use reliability of belt stretcher.It should be noted that the width of mounting hole 55 also needs the bolt less than fastening bolt 80
The external diameter of head, could so lock motor 10 and motor mounting rack 50.It is noted that can also be in fastening bolt
Pad is set between bolt head and motor mounting rack, now need to only ensure that the diameter of pad is more than the width of mounting hole.
Obviously, those skilled in the art can carry out various changes and modification without departing from this practicality to the utility model
New spirit and scope.So, if these modifications and variations of the present utility model belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to comprising including these changes and modification.
Claims (10)
- A kind of 1. belt stretcher, it is characterised in that including the belt being set on the driving wheel and driven pulley of motor, and Base and the motor mounting rack being fixed on the base, wherein, the motor is installed in the motor by pivot shaft pacifies Fill on support and relative with the motor mounting rack can lock, the pivot shaft is parallel to the central shaft of the driving wheel, institute State to be provided with motor mounting rack and screwed in towards the motor and the tensioning screw that is abutted with the side wall of the motor of end, when When screwing the tensioning screw, the side that the motor is directed away from the driven pulley around the pivot shaft rotates.
- 2. belt stretcher as claimed in claim 1, it is characterised in that the motor mounting rack is L bracket, described Base is fixedly connected with the first side plate of the L bracket, and the end face of the motor is installed in the second side plate of the L bracket And relative with second side plate can lock, the side of second side plate has towards the convex of the axial direction extension of the motor Ear, the screwed hole for installing the tensioning screw is provided with the lug.
- 3. belt stretcher as claimed in claim 2, it is characterised in that the end face of the motor is provided with mounting hole, institute Motor is stated to lock by the way that fastening bolt is relative with the motor mounting rack.
- 4. belt stretcher as claimed in claim 3, it is characterised in that the quantity of the mounting hole is one, described the The position that two side plates correspond to the mounting hole is provided through hole, and the fastening bolt screws in the installation through described through hole In hole.
- 5. belt stretcher as claimed in claim 4, it is characterised in that it is described through hole be circular port, when the fastening For bolt in when unscrewing state, the fastening bolt is pivot shaft.
- 6. belt stretcher as claimed in claim 3, it is characterised in that the quantity of the mounting hole is at least two, institute State the second side plate and correspond to the position of each mounting hole and be respectively arranged with through hole, the fastening bolt screws in through described through hole In the mounting hole.
- 7. belt stretcher as claimed in claim 6, it is characterised in that at least two mounting hole it is circumferentially arranged in The end face of the motor.
- 8. belt stretcher as claimed in claim 6, it is characterised in that it is described to include circular port and mounting hole through hole, Wherein the quantity of circular port is one, and when the fastening bolt, which is in, unscrews state, the peace is screwed in through the circular port The fastening bolt filled in hole is pivot shaft；For each mounting hole, when motor rotates around the pivot shaft, through the kidney-shaped The stud of fastening bolt corresponding to the screw-in of hole in mounting hole slides in the mounting hole.
- 9. the belt stretcher as described in claim 5 or 8, it is characterised in that the circular port is close to second side plate The offside for being provided with the side of lug is set.
- 10. belt stretcher as claimed in claim 8, it is characterised in that the width of the mounting hole is more than the fastening The external diameter of the stud of bolt.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720937293.5U CN207111858U (en) | 2017-07-28 | 2017-07-28 | A kind of belt stretcher |
| EP18805993.5A EP3615844B1 (en) | 2017-05-25 | 2018-04-09 | Belt driven system |
| PCT/CN2018/082268 WO2018214654A1 (en) | 2017-05-25 | 2018-04-09 | Belt driven system and tensioner thereof |
| US16/693,887 US11754150B2 (en) | 2017-05-25 | 2019-11-25 | Belt driven system and tensioner thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720937293.5U CN207111858U (en) | 2017-07-28 | 2017-07-28 | A kind of belt stretcher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207111858U true CN207111858U (en) | 2018-03-16 |
Family
ID=61582396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720937293.5U Expired - Fee Related CN207111858U (en) | 2017-05-25 | 2017-07-28 | A kind of belt stretcher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207111858U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018214654A1 (en) * | 2017-05-25 | 2018-11-29 | Zhejiang Dahua Technology Co., Ltd. | Belt driven system and tensioner thereof |
| CN110293459A (en) * | 2018-03-23 | 2019-10-01 | 秦皇岛烟草机械有限责任公司 | A kind of filament cutter sharpening reciprocator |
| CN113864413A (en) * | 2021-10-28 | 2021-12-31 | 南昌矿机集团股份有限公司 | Tensioning device and method for transmission belt of crusher |
-
2017
- 2017-07-28 CN CN201720937293.5U patent/CN207111858U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018214654A1 (en) * | 2017-05-25 | 2018-11-29 | Zhejiang Dahua Technology Co., Ltd. | Belt driven system and tensioner thereof |
| US11754150B2 (en) | 2017-05-25 | 2023-09-12 | Zhejiang Dahua Technology Co., Ltd. | Belt driven system and tensioner thereof |
| CN110293459A (en) * | 2018-03-23 | 2019-10-01 | 秦皇岛烟草机械有限责任公司 | A kind of filament cutter sharpening reciprocator |
| CN113864413A (en) * | 2021-10-28 | 2021-12-31 | 南昌矿机集团股份有限公司 | Tensioning device and method for transmission belt of crusher |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |