CN210196372U - Automatic tensioning device for scraper generator - Google Patents
Automatic tensioning device for scraper generator Download PDFInfo
- Publication number
- CN210196372U CN210196372U CN201921089304.4U CN201921089304U CN210196372U CN 210196372 U CN210196372 U CN 210196372U CN 201921089304 U CN201921089304 U CN 201921089304U CN 210196372 U CN210196372 U CN 210196372U
- Authority
- CN
- China
- Prior art keywords
- generator
- scraper
- rod
- connecting rod
- face
- 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.)
- Active
Links
Images
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses an automatic overspeed device tensioner of scraper generator. The generator is connected with an engine shell of the scraper in a rotating mode through a connecting pin shaft, a first belt wheel is further mounted on an output shaft of an engine of the scraper, the first belt wheel is connected with a second belt wheel mounted on an input shaft of the generator in a transmission mode through a first transmission belt, the device comprises a fixing seat fixedly arranged relative to the engine shell, a connecting rod and a tensioning spring, one end of the connecting rod is connected with the generator in a rotating mode, and the other end of the connecting rod is connected with the fixing seat through the tensioning spring. The utility model discloses an automatic tensioning of drive belt has avoided simply easily changing because of the not hard up trouble that causes of drive belt, and the operation is reliable, has reached non-maintaining target completely, has improved the whole economic benefits of scraper operation.
Description
Technical Field
The utility model relates to a device that is used for automatic tensioning scraper to go up drive belt between generator and the engine.
Background
At present, the fixing mode of the WJ-1 type scraper generator under the exquisite gold mine is a two-point fixing method of adding a fulcrum and an adjusting track.
As shown in fig. 3: the output shaft of the engine is provided with a first belt wheel 2 which is in transmission connection with a second belt wheel 9 on the input shaft of the generator 5 through a first transmission belt 3 and transmits power to the generator 5. The generator 5 is rotatably connected with the engine shell 1 through a connecting pin shaft 4, the adjusting track is arranged on the connecting frame 14, one end of the connecting frame 14 is rotatably connected with the engine shell 1, and the other end of the connecting frame 14 is connected with the generator 5 through a connecting bolt which penetrates through the adjusting track and is matched with a threaded hole in the shell of the generator 5. The first belt wheel 2 is also in transmission connection with a third belt wheel 11 arranged on an input shaft of the cooling fan 10 through a second transmission belt 12, and a tension wheel 13 for tensioning the second belt wheel 9 is arranged on the engine shell 1.
In this structure, tensioning wheel 13 can satisfy the tensioning requirement of second drive belt 12 and the operation requirement of radiator fan 10 basically, but connecting bolt need in time adjust according to the elasticity degree of first drive belt 3 for adjusting orbital position, otherwise cause generator 5 to operate unusually easily, lead to the storage battery to lack of electricity, probably cause the V belt to drop and cause the engine heat dissipation fan impaired when serious, lead to the engine to scrap.
SUMMERY OF THE UTILITY MODEL
The utility model provides an automatic overspeed device tensioner of scraper generator, its purpose: the tension of the transmission belt can be conveniently adjusted, and faults caused by the fact that the transmission belt is loosened are avoided.
The utility model discloses technical scheme as follows:
the utility model provides an automatic overspeed device tensioner of scraper generator, the generator is realized rotating through connecting pin axle and scraper's engine housing and is connected, still install first band pulley on the output shaft of scraper's engine, first band pulley is realized the transmission through first drive belt and the second band pulley of installing on the generator input shaft and is connected, including the fixed fixing base that sets up of relative engine housing, still includes connecting rod and tensioning spring, the one end of connecting rod with the generator rotates and connects, the other end is connected with the fixing base through the tensioning spring.
As a further improvement of the device: the connecting rod comprises a fixed rod, a threaded sleeve and a threaded rod;
the left end of the fixed rod is provided with a hinge hole for being rotatably connected with a generator, and the right end of the fixed rod is provided with a convex ring;
the left end of the threaded sleeve is provided with an annular end plate, the fixed rod penetrates through an inner hole of the end plate, and the right side surface of the end plate is used for being in contact with the left end surface of the convex ring; the inner hole of the thread bushing is provided with internal threads;
the left end of the threaded rod is matched with the internal thread of the threaded sleeve, and the right end of the threaded rod is used for being connected with the tensioning spring.
As a further improvement of the device: the threaded rod is further provided with a first nut, and the left end face of the first nut is used for being in contact with the right end face of the threaded sleeve.
As a further improvement of the device: the fixing rod is provided with an external thread, the external thread is provided with a second nut, and the right end face of the second nut is used for being in contact with the left end face of the threaded sleeve.
Compared with the prior art, the utility model discloses following positive effect has: (1) the utility model utilizes the structural characteristic that the generator is rotationally connected with the engine shell, adopts the tension spring to pull the generator, automatically provides tension force for the first transmission belt in real time, does not need manual adjustment, has simple structure, convenient operation, low cost and good tension effect, and effectively overcomes a series of generator problems caused by transmission belt jumping and deformation due to engine vibration; (2) the rigidity and the original length of the extension spring and the installation position of the fixed seat have errors relative to an ideal size, so that the length of the connecting rod is required to be adjusted according to actual conditions during installation, the tension applied by the spring to the generator can be ensured within a reasonable range, the tensioning effect is ensured, and the transmission efficiency is prevented from being influenced by overlarge tensioning force; if the connecting rod is manufactured in a customized mode, the problems of complicated preparation work and repeated debugging are caused, and the connecting rod needs to be replaced after the rigidity of the spring is reduced; the utility model discloses the scheme of split type connecting rod is further provided, the length of connecting rod can be adjusted in real time through screw mechanism to lock its length through the nut, thereby made things convenient for the adjustment of tensile force, and after spring rate descends, can adjust tensile force size through the mode of adjusting connecting rod length, need not to change the spring.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the structure of the connection rod portion.
Fig. 3 is a schematic diagram of the prior art.
Detailed Description
The technical scheme of the utility model is explained in detail below with the attached drawings:
as shown in fig. 1, a generator 5 of the scraper is rotatably connected with an engine housing 1 through a connecting pin shaft 4, a first belt pulley 2 is further mounted on an output shaft of the engine of the scraper, and the first belt pulley 2 is in transmission connection with a second belt pulley 9 mounted on an input shaft of the generator 5 through a first transmission belt 3.
The improvement is that the provided tension device comprises a fixed seat 6 which is fixedly arranged relative to the engine shell 1, the fixed seat 6 is fixedly installed in a welding mode, and the distance from the fixed seat 6 to the generator 5 is about 200 mm; the generator is characterized by further comprising a connecting rod 8 and a group of 16kg tensioning springs 7, wherein one end of the connecting rod 8 is rotatably connected with the generator 5, and the other end of the connecting rod 8 is rotatably connected with the fixed seat 6 through the tensioning springs 7.
During operation, the tensioning spring 7 always tensions the generator 5 to enable the generator to have a clockwise rotation trend, so that a tensioning force is provided for the first transmission belt 3 in real time, manual adjustment is not needed, and faults caused by insufficient tensioning force or untimely adjustment are avoided.
During the application, there is the error for ideal size unavoidably in extension spring rigidity, original length and the mounted position of fixing base 6, and this length to connecting rod 8 when requiring the installation is adjusted according to actual conditions, just can guarantee that the spring is at reasonable within range to the pulling force that generator 5 applyed, both guaranteed the tensioning effect, avoids the too big transmission efficiency that influences of tensioning force simultaneously. If the connecting rod 8 is custom-machined, there are problems that the preparation work is cumbersome, the adjustment needs to be repeated, and it must be replaced after the spring rate is lowered. For solving the problem, the utility model discloses split type connecting rod 8's scheme is further proposed:
as shown in fig. 2, the connecting rod 8 comprises a fixing rod 8-1, a threaded sleeve 8-2 and a threaded rod 8-4; the three parts are all made of steel.
The left end of the fixed rod 8-1 is provided with a hinge hole for realizing rotary connection with the generator 5 through a pin shaft, and the right end is provided with a convex ring.
The left end of the threaded sleeve 8-2 is provided with an annular end plate, the fixing rod 8-1 penetrates through an inner hole of the end plate, and the right side face of the end plate is used for being in contact with the left end face of the convex ring, so that the threaded sleeve 8-2 can freely rotate relative to the fixing rod 8-1, and meanwhile, tensile force can be applied to the fixing rod 8-1 through the convex ring. The inner bore of the threaded sleeve 8-2 is internally threaded.
The left end of the threaded rod 8-4 is matched with the internal thread of the threaded sleeve 8-2, and the right end of the threaded rod is connected with the tension spring 7.
When the tension spring 7 is used, the distance between the fixed rod 8-1 and the threaded rod 8-4 can be changed by rotating the threaded sleeve 8-2, so that the pre-tightening force of the tension spring 7 is adjusted.
In order to prevent the length of the connecting rod 8 from changing, the threaded rod 8-4 is further provided with a first nut 8-3, the left end face of the first nut 8-3 is used for being in contact with the right end face of the threaded sleeve 8-2, and after the length is adjusted, the first nut 8-3 locks the relative position between the threaded sleeve 8-2 and the threaded rod 8-4, so that the length can be prevented from changing. When the length needs to be adjusted again, the first nut 8-3 is loosened.
On the other hand, the fixing rod 8-1 is provided with an external thread, the external thread is provided with a second nut 8-5, the right end face of the second nut 8-5 is used for being in contact with the left end face of the threaded sleeve 8-2, and the threaded sleeve 8-2 is fixed from the left end to prevent the threaded sleeve 8-2 from loosening in the direction away from the threaded rod 8-4.
Through the mechanism, the length of the connecting rod 8 is changed, and the connecting rod 8 can be adjusted when the tension spring 7 is initially installed and debugged and the rigidity of the tension spring is reduced, so that the tension of the tension spring 7 is in an expected reasonable range.
The scheme is simple and easy to change, runs reliably, completely achieves the aim of maintenance free, and improves the overall economic benefit of the scraper in running.
Claims (4)
1. The utility model provides an automatic overspeed device tensioner of scraper generator, generator (5) realize rotating through connecting pin axle (4) and scraper's engine housing (1) and are connected, still install first band pulley (2) on the output shaft of scraper's engine, first band pulley (2) are connected its characterized in that through first drive belt (3) and second band pulley (9) realization transmission of installing on generator (5) input shaft: the generator comprises a fixing seat (6) fixedly arranged relative to an engine shell (1), and further comprises a connecting rod (8) and a tensioning spring (7), wherein one end of the connecting rod (8) is rotatably connected with the generator (5), and the other end of the connecting rod is connected with the fixing seat (6) through the tensioning spring (7).
2. The scraper generator automatic tensioning device of claim 1, characterized in that: the connecting rod (8) comprises a fixing rod (8-1), a threaded sleeve (8-2) and a threaded rod (8-4);
the left end of the fixed rod (8-1) is provided with a hinge hole for being rotatably connected with the generator (5), and the right end of the fixed rod is provided with a convex ring;
the left end of the threaded sleeve (8-2) is provided with an annular end plate, the fixing rod (8-1) penetrates through an inner hole of the end plate, and the right side face of the end plate is used for being in contact with the left end face of the convex ring; the inner hole of the thread bushing (8-2) is provided with internal threads;
the left end of the threaded rod (8-4) is matched with the internal thread of the threaded sleeve (8-2), and the right end of the threaded rod is used for being connected with a tension spring (7).
3. The scraper generator automatic tensioning device of claim 2, characterized in that: the threaded rod (8-4) is further provided with a first nut (8-3), and the left end face of the first nut (8-3) is used for being in contact with the right end face of the threaded sleeve (8-2).
4. The scraper generator automatic tensioning device of claim 2 or 3, characterized in that: the fixing rod (8-1) is provided with an external thread, a second nut (8-5) is mounted on the external thread, and the right end face of the second nut (8-5) is used for being in contact with the left end face of the threaded sleeve (8-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921089304.4U CN210196372U (en) | 2019-07-12 | 2019-07-12 | Automatic tensioning device for scraper generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921089304.4U CN210196372U (en) | 2019-07-12 | 2019-07-12 | Automatic tensioning device for scraper generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210196372U true CN210196372U (en) | 2020-03-27 |
Family
ID=69866719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921089304.4U Active CN210196372U (en) | 2019-07-12 | 2019-07-12 | Automatic tensioning device for scraper generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210196372U (en) |
-
2019
- 2019-07-12 CN CN201921089304.4U patent/CN210196372U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210978414U (en) | Belt tensioning device and rice transplanter comprising same | |
| CN210196372U (en) | Automatic tensioning device for scraper generator | |
| CN202392059U (en) | Belt tension mechanism for engine accessory gear train | |
| CN101324262A (en) | Belt tensioning force automatic regulating device | |
| CN106931110B (en) | Chain tensioning adjustment mechanism | |
| CN209552922U (en) | A kind of automated guided vehicle | |
| CN201496144U (en) | Tensioning mechanism of engine oil pump chain | |
| CN105422766A (en) | Toothed belt tensioning device and fan variable pitch device | |
| CN108591390B (en) | Tensioning structure and method for setting position and size of circular arc limiting hole | |
| CN216111972U (en) | Speed reducer with controllable output quantity | |
| CN208138402U (en) | A kind of tension structure | |
| CN111799087B (en) | Transformer coil winding combined moving support | |
| CN201262219Y (en) | Automatic regulating device for belt tensioning force | |
| CN210850266U (en) | Pretightening force setting mechanism, SCARA robot forearm structure and robot | |
| CN212598675U (en) | Anti-reverse feeding power mechanism of cold header | |
| CN110735895B (en) | Integrated adjustable belt tensioning device | |
| CN216548091U (en) | Transmission chain tightness degree adjusting device | |
| CN203614681U (en) | Belt adjusting device of belt-driven disc separator | |
| CN215673126U (en) | Transmission shaft assembly of automobile generator | |
| CN210600114U (en) | Two-stage adjustable support of worm gear and worm reducer | |
| CN218882910U (en) | Generator assembly with tensioning function | |
| CN220702757U (en) | Electronic paper easily tears material feeding unit | |
| CN105386278A (en) | Motor installation structure of household appliance | |
| CN206409586U (en) | A kind of adjustable chain stretching device of heavily loaded roller-way | |
| CN216692042U (en) | Chain wheel transmission device for winch rope arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |