CN211924825U - Belt pulley transmission structure - Google Patents
Belt pulley transmission structure Download PDFInfo
- Publication number
- CN211924825U CN211924825U CN202020611108.5U CN202020611108U CN211924825U CN 211924825 U CN211924825 U CN 211924825U CN 202020611108 U CN202020611108 U CN 202020611108U CN 211924825 U CN211924825 U CN 211924825U
- Authority
- CN
- China
- Prior art keywords
- belt pulley
- transmission shaft
- centre bore
- pulley
- positioning block
- 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
- Pulleys (AREA)
Abstract
The utility model relates to a belt pulley transmission structure, including the belt pulley and be used for driving pulley pivoted transmission shaft, be equipped with on the belt pulley with the centre bore that the transmission shaft is connected, the centre bore is the taper hole, the outside of belt pulley is equipped with lock nut, be equipped with on the transmission shaft with centre bore cartridge complex erection section and with the screw thread section that lock nut connects, the tapering of erection section with the tapering looks adaptation of centre bore, the erection section through the flat key with the centre bore is connected. The belt pulley locking device is characterized by further comprising a positioning block, the positioning block is mounted on the belt pulley, a bayonet is arranged on the positioning block, and a clamping groove matched with the bayonet is formed in the locking nut. The utility model discloses simple structure, the maintenance of being convenient for utilizes the tapering auto-lock to produce fairly big resistance moment of torsion between belt pulley and the transmission shaft, prevents to produce relative slip between the two, can produce the biggest fastening power, will make the two easily separate simultaneously again, and what the location then adopted is the mode of flat key connection, and transmission performance is reliable.
Description
Technical Field
The utility model relates to a belt pulley transmission structure belongs to belt pulley drive technical field.
Background
The belt transmission is also called belt transmission, and is a mechanical transmission, one or more belts are tightly sleeved on a belt pulley, a main transmission belt pulley is arranged on a main transmission shaft, a driven transmission belt pulley is arranged on a driven transmission shaft, and the purpose of transmitting power is achieved by utilizing the friction force between the belts and the shafts.
The existing main transmission belt pulley and the main transmission shaft are in transition fit, the two are positioned through flat key connection, and then the driving belt pulley is fastened on the main transmission shaft through a nut. Meanwhile, because the packaging machine equipment is influenced by the operating environment, a certain corrosion phenomenon can be generated between the main transmission belt pulley and the main transmission shaft of the equipment, interference fit between the belt pulley and the transmission shaft is easily caused, the phenomenon that the belt pulley or the transmission shaft is not easily disassembled is caused when the belt pulley or the transmission shaft is replaced, and the labor cost of maintenance is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to prior art exists provides a simple structure, and the transmission is reliable, easy dismounting, and the maintenance of being convenient for, and the belt pulley transmission structure that maintains with low costs.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a belt pulley transmission structure, includes the belt pulley and is used for driving belt pulley pivoted transmission shaft, be equipped with on the belt pulley with the centre bore that the transmission shaft is connected, the centre bore is the taper hole, the outside of belt pulley is equipped with lock nut, be equipped with on the transmission shaft with centre bore cartridge complex installation section and with the screw thread section that lock nut connects, the tapering of installation section with the tapering looks adaptation of taper hole, the installation section through the parallel key with the centre bore is connected.
The utility model has the advantages that: adopt taper fit's mode to connect the installation between belt pulley and the transmission shaft, then carry out fastening position through lock nut, utilize the tapering principle to fasten the belt pulley on the transmission shaft, turn into radial force with axial force, utilize the tapering auto-lock to produce considerable resistance moment of torsion between belt pulley and the transmission shaft, prevent to produce relative slip between belt pulley and the axle, this kind of structure can produce the biggest fastening force, it is easy to separate with the transmission shaft to make the belt pulley again simultaneously, what the location was then adopted is the mode of flat key connection, transmission performance is reliable. In a word, the utility model discloses simple structure, taper fit not only makes belt pulley and transmission shaft produce the biggest fastening force, avoids relative slip between the two, and transmission performance is reliable, and the installation and the separation of the belt pulley of being convenient for moreover and transmission shaft are convenient for maintain, and the maintenance cost is low.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Furthermore, the belt pulley locking device further comprises a positioning block, wherein the positioning block is installed on the belt pulley, a bayonet is arranged on the positioning block, and a clamping groove matched with the bayonet is formed in the locking nut.
The beneficial effect who adopts above-mentioned further scheme is that, the locating piece is installed on the belt pulley, lock nut on have with the bayonet socket of locating piece block, can block lock nut through the locating piece, when screwing up the nut, can install belt pulley locking on the transmission shaft, when unscrewing the nut, can take advantage of the situation to pull down the belt pulley under the drive of nut, play the effect of conveniently loading and unloading the belt pulley.
Further, the positioning block is mounted on the outer end face of the belt pulley through a bolt.
Adopt above-mentioned further scheme's beneficial effect be convenient for stably install the locating piece on the belt pulley, can carry out the dismouting to the belt pulley in the lump when dismouting lock nut.
Furthermore, the locking nut comprises an external screwing part and an internal positioning part, and the clamping groove is formed between the external screwing part and the internal positioning part.
Adopt above-mentioned further scheme's beneficial effect to be equipped with the outer portion of twisting that is convenient for screw up or unscrew to it in the lock nut outside, and outer portion of twisting can be the outer hexagonal structure that is convenient for the spanner to twist, and the design of interior position is in order to be that lock nut forms the draw-in groove structure with the locating piece snap-fit.
Furthermore, the inner positioning part is of a circular structure, a notch matched with the inner positioning part is further formed in the positioning block, and the notch is formed in the inner side of the bayonet.
The beneficial effects who adopts above-mentioned further scheme are that, the outline of interior positioning part is circular structure, and the locating piece of being convenient for forms and is used for with interior positioning part complex notch, realizes locating piece and lock nut and closely cooperates.
Furthermore, key grooves for mounting the flat keys are respectively formed in the outer surface of the mounting section and the inner wall of the central hole.
The beneficial effect who adopts above-mentioned further scheme is that, the flat key is installed in the keyway on installation section and centre bore inner wall, realizes the transmission of torque through the extrusion of flat key and keyway side.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the transmission shaft of the present invention;
FIG. 3 is a schematic structural view of the belt pulley of the present invention;
fig. 4 is a schematic structural view of the positioning block of the present invention;
fig. 5 is a schematic structural view of the lock nut of the present invention;
in the figure, 1, a belt pulley; 11. a central bore; 2. a drive shaft; 21. an installation section; 22. a threaded segment; 3. positioning blocks; 31. a bayonet; 4. locking the nut; 41. a card slot; 42. an external screwing part; 43. an inner positioning part; 5. a flat bond; 6. a keyway.
Detailed Description
The principles and features of the present invention are described below in conjunction with examples, which are set forth only to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1-5, a belt pulley transmission structure comprises a belt pulley 1 and a transmission shaft 2 for driving the belt pulley to rotate, wherein the belt pulley 1 is provided with a central hole 11 connected with the transmission shaft, the central hole is a taper hole, the outer side of the belt pulley is provided with a locking nut 4, the transmission shaft 2 is provided with an installation section 21 in plug-in fit with the central hole and a thread section 22 connected with the locking nut, the taper of the installation section is matched with the taper of the taper hole, and the installation section is connected with the central hole through a flat key 5.
Still include locating piece 3, locating piece 3 is installed on belt pulley 1, be equipped with bayonet 31 on the locating piece 3, lock nut is last be equipped with bayonet matched with draw-in groove 41. The locating piece is installed on the belt pulley, has the bayonet socket with the locating piece block on the lock nut, can block lock nut through the locating piece, when screwing up the nut, can install belt pulley lock on the transmission shaft, when unscrewing the nut, can take advantage of the situation and pull down the belt pulley under the drive of nut, plays the effect of conveniently loading and unloading the belt pulley.
The positioning block 3 is mounted on the outer end face of the belt pulley 1 through a bolt. The positioning block is conveniently and stably arranged on the belt pulley, and the belt pulley can be disassembled and assembled together when the locking nut is disassembled and assembled.
The lock nut 4 includes an external screwing portion 42 and an internal positioning portion 43, and the locking groove 41 is formed between the external screwing portion and the internal positioning portion. The lock nut outside is equipped with the portion of moving of twisting outward that is convenient for screw up or unscrew it, and the portion of moving of twisting outward can be the outer hexagonal structure that is convenient for the spanner to twist, and the design of interior location portion is in order to be that lock nut forms the draw-in groove structure with locating piece snap-fit.
The inner positioning portion 43 is of a circular structure, a notch matched with the inner positioning portion is further formed in the positioning block, and the notch is formed in the inner side of the bayonet. The outer contour of the inner positioning part is of a circular structure, so that the positioning block can form a notch matched with the inner positioning part, and the positioning block is tightly matched with the locking nut.
And key grooves 6 for mounting the flat keys are respectively arranged on the outer surface of the mounting section and the inner wall of the central hole. The flat key is arranged in the key grooves on the inner walls of the mounting section and the central hole, and the transmission of torque is realized through the extrusion of the flat key and the side surface of the key groove.
The transmission shaft is provided with a taper shaft section which is processed by matching with the inner hole of the belt pulley, the outer side of the belt pulley is provided with a positioning block, and the positioning block is used for clamping the nut and playing a role of conveniently assembling and disassembling the belt pulley. Have a bayonet socket on the fixed block, the lateral part of nut and belt pulley contact has the draw-in groove, and the draw-in groove on the nut is complied with the bayonet socket position of fixed block and is put into the back, and the nut cooperates with the epaxial screw thread section threaded connection of transmission, if clockwise tightening nut, can install the belt pulley locking fixed on the transmission shaft, and anticlockwise rotation nut can take the advantage of the situation and pull down the belt pulley under the drive of nut.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. The utility model provides a belt pulley transmission structure, includes the belt pulley and is used for driving belt pulley pivoted transmission shaft, be equipped with on the belt pulley with the centre bore that the transmission shaft is connected, its characterized in that, the centre bore is the taper hole, the outside of belt pulley is equipped with lock nut, be equipped with on the transmission shaft with centre bore cartridge complex installation section and with the screw thread section that lock nut is connected, the tapering of installation section with the tapering looks adaptation of taper hole, the installation section through the parallel key with the centre bore is connected.
2. The pulley transmission structure according to claim 1, further comprising a positioning block, wherein the positioning block is mounted on the pulley, the positioning block is provided with a bayonet, and the lock nut is provided with a slot matched with the bayonet.
3. The pulley drive structure according to claim 2, wherein the positioning block is mounted on an outer end face of the pulley by a bolt.
4. The pulley drive according to claim 2 or 3, characterized in that the lock nut comprises an external driving portion and an internal positioning portion, and the slot is formed between the external driving portion and the internal positioning portion.
5. The pulley transmission structure according to claim 4, wherein the inner positioning portion is a circular structure, and the positioning block is further provided with a notch matched with the inner positioning portion, and the notch is arranged inside the bayonet.
6. The pulley drive of claim 1 wherein the mounting segment has a keyway on an outer surface thereof and the central bore has a keyway on an inner wall thereof for receiving the flat key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020611108.5U CN211924825U (en) | 2020-04-22 | 2020-04-22 | Belt pulley transmission structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020611108.5U CN211924825U (en) | 2020-04-22 | 2020-04-22 | Belt pulley transmission structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211924825U true CN211924825U (en) | 2020-11-13 |
Family
ID=73328624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020611108.5U Active CN211924825U (en) | 2020-04-22 | 2020-04-22 | Belt pulley transmission structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211924825U (en) |
-
2020
- 2020-04-22 CN CN202020611108.5U patent/CN211924825U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20080190247A1 (en) | Power ratchet wrench | |
| CN211924825U (en) | Belt pulley transmission structure | |
| CN1128195A (en) | Spanner | |
| CN204140674U (en) | Taper sleeve type fast assembling-disassembling coupling | |
| CN210623415U (en) | Joint coupling | |
| CN2061227U (en) | Mechanical transmission device with removable shaft coupling piece | |
| CN206962561U (en) | A kind of rotor shaft attachment structure of soot motor | |
| CN210371528U (en) | Bolt type pin shaft pair | |
| CN210484435U (en) | Shaft end pump coupling of speed reducer | |
| CN203161643U (en) | Polygon structure for linking impeller with gear shaft | |
| CN109854480B (en) | Stator part connecting structure and compressor | |
| CN209875771U (en) | Axle spindle nose with novel spindle nose locking structure | |
| CN201786962U (en) | Elasticity and rigidity combined coupler | |
| CN201055985Y (en) | Automobile air conditioner clutch relieving attachment | |
| CN207989387U (en) | Impeller rotating device | |
| CN213684652U (en) | Coupling connecting structure of magnetic pump | |
| CN215719743U (en) | Pump coupling with axial locking function | |
| CN219139394U (en) | Air conditioner pump | |
| CN201297371Y (en) | Sleeved combined belt pulley | |
| CN220435269U (en) | Anti-drop coupler | |
| CN207762141U (en) | A kind of motor spline shaft transmission device | |
| CN215058428U (en) | Air compressor impeller mounting structure | |
| CN219686964U (en) | Hub unit central locking mechanism | |
| CN217702225U (en) | Speed reducer assembling system | |
| CN221482459U (en) | Motor coupling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |