CN214274379U - Synchronous belt assembly tensioned by needle roller bearing - Google Patents
Synchronous belt assembly tensioned by needle roller bearing Download PDFInfo
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- CN214274379U CN214274379U CN202023062904.7U CN202023062904U CN214274379U CN 214274379 U CN214274379 U CN 214274379U CN 202023062904 U CN202023062904 U CN 202023062904U CN 214274379 U CN214274379 U CN 214274379U
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- synchronous belt
- shaft
- belt wheel
- tensioning
- tensioning shaft
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Abstract
The utility model discloses a synchronous belt component tensioned by a needle bearing, which comprises a seat body, a synchronous belt wheel, a fixed shaft, a tensioning shaft and a synchronous belt wound on the synchronous belt wheel, wherein the synchronous belt wheel, the fixed shaft, the tensioning shaft and the synchronous belt are arranged in the seat body; the fixed shaft and the tensioning shaft are sleeved with needle roller bearings, and the synchronous belt is extruded through the outer surfaces of the needle roller bearings; a transverse groove is formed in the seat body, and the tensioning shaft moves along the transverse groove; the screw rod is provided with two screw rods, a first nut and a second nut which are arranged on the screw rods; the utility model discloses well utilization fixed axle, tensioning shaft, bearing and screw rod can realize the effect of tensioning, simple structure and high to the space utilization of synchronous pulley both sides.
Description
Technical Field
The utility model relates to a commodity circulation conveying equipment technical field specifically is a hold-in range subassembly that has the tensioning ability to the hold-in range.
Background
At present, a common tensioning wheel structure is generally composed of a fixed seat, a shaft, a bearing, a roller, a tensioning seat and other structures, the structure is complex, the size of the roller is large, and the tensioning requirement space is high.
Therefore, a new technical solution is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model provides a hold-in range subassembly with bearing tensioning for it is big to solve hold-in range tensioning gyro wheel, and the structure is complicated problem, and this hold-in range subassembly can realize the hold-in range tensioning in the little space.
The technical scheme is as follows: in order to achieve the above object, the utility model discloses hold-in range subassembly with bearing tensioning can adopt following technical scheme:
a synchronous belt component tensioned by a needle bearing comprises a seat body, a synchronous belt wheel, a fixed shaft, a tensioning shaft and a synchronous belt wound on the synchronous belt wheel, wherein the synchronous belt wheel is arranged in the seat body; the synchronous belt wheel is provided with an outer gear and is matched with inner side teeth of the synchronous belt wheel, and the fixed shaft and the tensioning shaft are respectively positioned on two sides of the synchronous belt wheel and simultaneously respectively extrude the synchronous belt to be matched; the needle roller bearings are sleeved on the fixed shaft and the tensioning shaft, and the synchronous belt is extruded through the outer surfaces of the needle roller bearings; the base body is provided with a transverse groove, the tensioning shaft penetrates through the transverse groove, the width of the transverse groove is the same as the diameter of the tensioning shaft, the length of the transverse groove is larger than the diameter of the tensioning shaft, and the tensioning shaft moves along the transverse groove; the screw rod is provided with two screw rods, a first nut and a second nut which are arranged on the screw rods; one screw rod penetrates through one end of the fixed shaft, which is positioned at the same side with the tensioning shaft, and the other screw rod penetrates through one end of the fixed shaft, which is positioned at the other side with the tensioning shaft; the first nut leans on in the fixed axle outside, and the second nut leans on in the tensioning axle outside, rotates the second nut on two screws and removes to the fixed axle direction, and the second nut drives the tensioning axle and removes to the fixed axle direction and makes the hold-in range tensioning.
Furthermore, the fixed shaft and the tensioning shaft are respectively positioned above two sides of the synchronous belt wheel.
Furthermore, the seat body comprises two side walls, an accommodating cavity is formed between the two side walls, the synchronous belt wheel, the needle roller bearing on the fixed shaft and the needle roller bearing on the tensioning shaft are all positioned in the accommodating cavity, the synchronous belt wheel is fixed on the seat body through a synchronous belt wheel shaft, and two ends of the tensioning shaft respectively penetrate through the two side walls; the both ends of fixed axle and the both ends of tensioning shaft are passed two lateral walls to both sides respectively equally, two screws are located the outside of two lateral walls respectively.
Further, a motor and a speed reducer are further installed on the outer side of the base body, and the speed reducer is coaxially matched with the synchronous pulley shaft and drives the synchronous pulley shaft to rotate.
Furthermore, the synchronous belt is wound on the synchronous belt wheel to form a U shape, the synchronous belt extends upwards from one side of the synchronous belt wheel and then is in extrusion press fit with the needle roller bearing on the fixed shaft and extends towards one side above the synchronous belt wheel, and the synchronous belt extends upwards from the other side of the synchronous belt wheel and then is in extrusion press fit with the needle roller bearing on the tensioning shaft and extends towards the other side above the synchronous belt wheel.
Has the advantages that: the utility model provides an among the synchronous belt subassembly, only utilize fixed axle, tensioning shaft, bearing and screw rod can realize the effect of tensioning, simple structure and high to the space utilization of synchronous pulley both sides. The tensioning is realized by approaching the tensioning axial direction to the fixed shaft through the matching of the screw rod and the nut, the operation is simple, and the screw rod and the nut do not occupy too much space, thereby being beneficial to the miniaturization of the whole structure.
Drawings
Fig. 1 is a side view of the inventive timing belt assembly.
Fig. 2 is a sectional view taken in the direction of a-a in fig. 1.
Fig. 3 is a sectional view taken in the direction B-B in fig. 2.
Detailed Description
Referring to fig. 1 to 3, the present embodiment discloses a synchronous belt assembly tensioned by a needle bearing, which includes a base 1, a synchronous pulley 2 installed inside the base 1, a fixed shaft 3, a tensioning shaft 4, and a synchronous belt 5 wound around the synchronous pulley 2. The synchronous pulley 2 is provided with an external gear and is matched with the internal side teeth of the synchronous belt 5, and the synchronous belt 5 is driven to move through gear engagement. The fixed shaft 3 and the tensioning shaft 4 are respectively positioned on two sides of the synchronous belt wheel 2 and simultaneously respectively extrude the synchronous belt 5 to be matched. The needle roller bearings 6 are sleeved on the fixed shaft 3 and the tensioning shaft 4, and the synchronous belt 5 is extruded through the outer surfaces of the needle roller bearings 6. Specifically, the fixed shaft 3 and the tensioning shaft 4 are respectively positioned above two sides of the synchronous belt wheel 2; the synchronous belt 5 is wound on the synchronous belt wheel 2 to form a U shape, the synchronous belt 5 extends upwards from one side of the synchronous belt wheel 2 and then is in extrusion press fit with the needle roller bearing 6 on the fixed shaft 3 and extends towards one side above the synchronous belt wheel 2, and the synchronous belt 5 extends upwards from the other side of the synchronous belt wheel 2 and then is in extrusion press fit with the needle roller bearing 6 on the tensioning shaft 4 and extends towards the other side above the synchronous belt wheel 2.
The fixed shaft 3 and the seat body 1 are fixed in relative position all the time, and the synchronous belt 5 is tensioned by moving the tensioning shaft 4. A transverse groove 7 is formed in the seat body 1, and the tensioning shaft 4 penetrates through the transverse groove 7. The width of transverse groove 7 is the same as the diameter of tensioning shaft 4, and the length of transverse groove 7 is greater than the diameter of tensioning shaft 4, and tensioning shaft 4 moves along transverse groove 7. Meanwhile, the screw rod structure is also provided with two screw rods 8, and a first nut 9 and a second nut 10 which are arranged on the screw rods 8. One of the screw rods 8 passes through one end of the fixed shaft 3, which is positioned on the same side with the tensioning shaft 4, and the other screw rod 8 passes through one end of the fixed shaft 3, which is positioned on the other side with the tensioning shaft 4. The first nut 9 abuts against the outside of the fixed shaft 3 and the second nut 10 abuts against the outside of the tensioning shaft 4. The second nuts 10 on the two screws 8 are rotated to move towards the fixed shaft 3, and the second nuts 10 drive the tensioning shaft 4 to move towards the fixed shaft 3, so that the shape of the synchronous belt 5 is changed, and the synchronous belt 5 is squeezed and tensioned. In the present embodiment, the housing 1 includes two side walls 11, a receiving cavity is formed between the two side walls 11, and the synchronous pulley 2, the needle roller bearing 6 on the fixed shaft 3, and the needle roller bearing 6 on the tension shaft 4 are located in the receiving cavity. The fixed shaft 3 and the tensioning shaft 4 are also provided with shaft sleeves 14, and the shaft sleeves 14 abut against the inner surface of the side wall 11 to form positioning with the inner surface of the side wall 11. Synchronous pulley 2 passes through the hold-in range shaft and fixes on pedestal 1, and two lateral walls 11 are passed respectively at the both ends of tensioning shaft 4. The both ends of fixed axle 3 and the both ends of tensioning shaft 4 are also passed two lateral walls 11 to both sides respectively, two screw rods 8 are located the outside of two lateral walls 11 respectively. The outer side of the seat body 1 is also provided with a motor 12 and a speed reducer 13, and the speed reducer 13 is coaxially matched with a synchronous pulley shaft and drives the synchronous pulley shaft to rotate.
The utility model discloses the method and the way of realizing this technical scheme are many specifically, above only the preferred embodiment of the utility model. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.
Claims (5)
1. A synchronous belt component tensioned by a needle bearing is characterized by comprising a base body, a synchronous belt wheel, a fixed shaft, a tensioning shaft and a synchronous belt wound on the synchronous belt wheel, wherein the synchronous belt wheel, the fixed shaft, the tensioning shaft and the synchronous belt are arranged in the base body;
the synchronous belt wheel is provided with an outer gear and is matched with inner side teeth of the synchronous belt wheel, and the fixed shaft and the tensioning shaft are respectively positioned on two sides of the synchronous belt wheel and simultaneously respectively extrude the synchronous belt to be matched; the needle roller bearings are sleeved on the fixed shaft and the tensioning shaft, and the synchronous belt is extruded through the outer surfaces of the needle roller bearings;
the base body is provided with a transverse groove, the tensioning shaft penetrates through the transverse groove, the width of the transverse groove is the same as the diameter of the tensioning shaft, the length of the transverse groove is larger than the diameter of the tensioning shaft, and the tensioning shaft moves along the transverse groove;
the screw rod is provided with two screw rods, a first nut and a second nut which are arranged on the screw rods; one screw rod penetrates through one end of the fixed shaft, which is positioned at the same side with the tensioning shaft, and the other screw rod penetrates through one end of the fixed shaft, which is positioned at the other side with the tensioning shaft; the first nut leans on in the fixed axle outside, and the second nut leans on in the tensioning axle outside, rotates the second nut on two screws and removes to the fixed axle direction, and the second nut drives the tensioning axle and removes to the fixed axle direction and makes the hold-in range tensioning.
2. The synchronous belt assembly of claim 1, wherein: the fixed shaft and the tensioning shaft are respectively positioned above two sides of the synchronous belt wheel.
3. The synchronous belt assembly of claim 2, wherein: the base body comprises two side walls, an accommodating cavity is formed between the two side walls, the synchronous belt wheel, the needle roller bearing on the fixed shaft and the needle roller bearing on the tensioning shaft are all positioned in the accommodating cavity, the synchronous belt wheel is fixed on the base body through a synchronous belt wheel shaft, and two ends of the tensioning shaft respectively penetrate through the two side walls; the both ends of fixed axle and the both ends of tensioning shaft are passed two lateral walls to both sides respectively equally, two screws are located the outside of two lateral walls respectively.
4. The timing belt assembly of claim 3, wherein: and the outer side of the seat body is also provided with a motor and a speed reducer, and the speed reducer is coaxially matched with the synchronous belt wheel shaft and drives the synchronous belt wheel shaft to rotate.
5. The timing belt assembly of claim 4, wherein: the synchronous belt is wound on the synchronous belt wheel to form a U shape, the synchronous belt extends upwards from one side of the synchronous belt wheel and then is in extrusion fit with the needle bearing on the fixed shaft and extends towards one side above the synchronous belt wheel, and the synchronous belt extends upwards from the other side of the synchronous belt wheel and then is in extrusion fit with the needle bearing on the tensioning shaft and extends towards the other side above the synchronous belt wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023062904.7U CN214274379U (en) | 2020-12-18 | 2020-12-18 | Synchronous belt assembly tensioned by needle roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023062904.7U CN214274379U (en) | 2020-12-18 | 2020-12-18 | Synchronous belt assembly tensioned by needle roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214274379U true CN214274379U (en) | 2021-09-24 |
Family
ID=77799461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023062904.7U Active CN214274379U (en) | 2020-12-18 | 2020-12-18 | Synchronous belt assembly tensioned by needle roller bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214274379U (en) |
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2020
- 2020-12-18 CN CN202023062904.7U patent/CN214274379U/en active Active
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