CN210998013U

CN210998013U - Synchronous belt tensioning mechanism for sanding machine

Info

Publication number: CN210998013U
Application number: CN201921862456.3U
Authority: CN
Inventors: 吴锦明; 顾加林; 丁祥智
Original assignee: Suzhou Jinshai Tools Co ltd
Current assignee: Suzhou Jinshai Tools Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-07-14
Anticipated expiration: 2029-10-31

Abstract

The utility model belongs to the technical field of machining equipment, and relates to a synchronous belt tensioning mechanism for a sander, which comprises a tensioning wheel, wherein the tensioning wheel comprises a shell, a bearing and a pin shaft penetrating through the bearing, elastic check rings are arranged on the upper side and the lower side of the pin shaft penetrating through the bearing, the synchronous belt tensioning mechanism also comprises a belt wheel bracket, a driving belt wheel, a driven belt wheel, an output shaft, a long belt wheel, a bearing cover plate, a first synchronous belt and a second synchronous belt, the contact surfaces of the driving belt wheel and the driven belt wheel are respectively provided with a corresponding concave-convex structure, the synchronous belt tensioning mechanism also comprises a motor, the first synchronous belt is connected on the output shaft of the motor and the driving belt wheel, the second synchronous belt is connected on the output shaft of the motor and the driven belt wheel, the tensioning wheel is contacted with the second synchronous belt, when the sander works, the tensioning wheel contacted with the second, the synchronous belt is not loosened, and the effect of improving the polishing quality is achieved.

Description

Synchronous belt tensioning mechanism for sanding machine

Technical Field

The utility model belongs to the technical field of machining equipment, a hold-in range straining device for grinder is related to.

Background

The grinder is the equipment commonly used that is used for polishing timber, along with the improvement of the requirement of polishing to timber, also is higher and higher to the requirement of grinder, among the prior art, at the in-process of polishing, along with the rotation of grinder, lax phenomenon can appear in the hold-in range, can influence the effect of polishing like this.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a hold-in range straining device for grinder, step up to the hold-in range in grinder working process and prevent to relax and influence the effect of polishing.

The utility model provides a technical scheme that technical problem adopted is: a synchronous belt tensioning mechanism for a sander comprises a tensioning wheel, wherein the tensioning wheel comprises a shell, a bearing and a pin shaft penetrating through the bearing, elastic check rings are arranged on the upper side and the lower side of the pin shaft penetrating through the bearing, the synchronous belt tensioning mechanism further comprises a belt pulley support, a driving belt pulley, a driven belt pulley, an output shaft, a long belt pulley, a bearing cover plate, a first synchronous belt and a second synchronous belt, the driving belt pulley and the driven belt pulley are installed on the output shaft and are in contact with each other, the two ends of the output shaft are respectively arranged on the belt pulley support and the bearing cover plate through a first bearing and a second bearing, the driving belt pulley and the driven belt pulley are located between the first bearing and the second bearing, a bearing baffle is arranged on one side of the bearing cover plate, a spring is arranged between one side of the bearing cover plate provided with the bearing baffle and the driving belt pulley, the first synchronous belt is connected to an output shaft of the motor and the driving belt wheel, the second synchronous belt is connected to an output shaft of the motor and the driven belt wheel, and the tensioning wheel is in contact with the second synchronous belt.

Further, the method comprises the following steps: the tensioning wheel is characterized by further comprising a positioning plate, the positioning plate is fixed on the belt wheel support through screws, round holes are formed in the positioning plate, a pin shaft of the tensioning wheel penetrates through the round holes formed in the positioning plate to be connected with the belt wheel support, and the part, connected with the round holes formed in the positioning plate, of the pin shaft is provided with a straight grain structure.

Further, the method comprises the following steps: the concave-convex structure comprises two bulges and two grooves which are arranged on the contact surface of the driving belt wheel and the driven belt wheel, and the bulges and the grooves are arranged smoothly at intervals.

The utility model has the advantages that: the tensioning wheel that adopts steps up the hold-in range in grinder working process, has improved the effect of polishing.

Drawings

FIG. 1 is a schematic view of the relationship between the tension wheel and the positioning plate.

Figure 2 is a schematic view of the interior of the tensioner.

Fig. 3 is a schematic view of a reciprocating lift mechanism.

Fig. 4 is a schematic diagram of the concave-convex structure of the contact surface of the driving pulley and the driven pulley.

Labeled as: tensioning wheel 1, shell 11, bearing 12, round pin axle 13, locating plate 14, band pulley support 2, driving pulley 3, driven pulley 4, output shaft 5, long band pulley 6, bearing cover 7, spring 8, concave-convex structure 9, motor 10.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1 to 4, a synchronous belt tensioning mechanism for a sander comprises a tensioning wheel 1, wherein the tensioning wheel 1 comprises a housing 11, a bearing 12 and a pin shaft 13 penetrating through the bearing 12, elastic check rings are arranged on the upper side and the lower side of the pin shaft 13 penetrating through the bearing 12, the synchronous belt tensioning mechanism further comprises a pulley bracket 2, a driving pulley 3, a driven pulley 4, an output shaft 5, a long pulley 6, a bearing cover plate 7, a first synchronous belt and a second synchronous belt, the driving pulley 3 and the driven pulley 4 are installed on the output shaft 5, the driving pulley 3 is in contact with the driven pulley 4, two ends of the output shaft 5 are respectively arranged on the pulley bracket 2 and the bearing cover plate 7 through a first bearing and a second bearing, the driving pulley 3 and the driven pulley 4 are located between the first bearing and the second bearing, a bearing baffle is arranged on one side of the bearing cover plate 7, a spring 8 is arranged between one side of the bearing cover plate 7 provided, the driving pulley 3 and the driven pulley 4 contact surface all are provided with corresponding concave-convex structure 9, still include motor 10, first hold-in range is connected on output shaft 5 and driving pulley 3 of motor 10, the second hold-in range is connected on output shaft 5 and driven pulley 4 of motor 10, take-up pulley 1 and the contact of second hold-in range.

At grinder during operation, take-up pulley 1 with the contact of second synchronous belt rotates along with the rotation of hold-in range, at the rotation in-process, shell 11 steps up the hold-in range for the hold-in range can not appear lax phenomenon, has reached the effect that improves the quality of polishing, and the corresponding concave-convex structure 9 that the driving pulley 3 and the 4 contact surfaces of driven pulley of adoption all set up, at the rotation in-process, the concave-convex structure of driving pulley 3 and the concave-convex structure of driven pulley 4 mutually support, accomplish up-and-down motion, and the work piece receives axial again when receiving radial polishing, has improved work efficiency under dual polishing and has also improved the quality of polishing.

On the basis, as shown in fig. 1, 2 and 3, the synchronous belt polishing device further comprises a positioning plate 14, the positioning plate 14 is fixed on the pulley support 2 through screws, a round hole is formed in the positioning plate 14, a pin shaft 13 of the tensioning wheel 1 penetrates through the round hole formed in the positioning plate 14 to be connected with the pulley support 2, a part, connected with the round hole formed in the positioning plate 14, of the pin shaft 13 is provided with a straight line structure, the pin shaft passes through the positioning plate 8 to be connected with the pulley support 1, the tensioning wheel can be more stable when a synchronous belt is tightened, deviation cannot be generated, grinding effect cannot be affected, and the part, connected with the round hole formed in the positioning plate 8, of the pin shaft 13 is provided with the straight line structure, so that the.

On the basis, as shown in fig. 4, the concave-convex structure 9 comprises two protrusions and two grooves which are arranged on the contact surface of the driving pulley 3 and the driven pulley 4, the protrusions and the grooves are arranged smoothly at intervals, in the rotating process, the protrusions of the driving pulley 3 are in contact with the protrusions of the driven pulley 4, the protrusions of the driving pulley 3 are in contact with the grooves of the driven pulley 4, one reciprocating motion is completed, the workpiece is subjected to axial polishing while being subjected to radial polishing, and the working efficiency and the polishing quality are improved under the double polishing.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a hold-in range straining device for grinder which characterized in that: the tension pulley comprises a tension pulley (1), wherein the tension pulley (1) comprises a shell (11), a bearing (12) and a pin shaft (13) penetrating through the bearing (12), elastic check rings are arranged on the upper side and the lower side of the pin shaft (13) penetrating through the bearing (12), the tension pulley further comprises a pulley support (2), a driving pulley (3), a driven pulley (4), an output shaft (5), a long pulley (6), a bearing cover plate (7), a first synchronous belt and a second synchronous belt, the driving pulley (3) and the driven pulley (4) are installed on the output shaft (5), the driving pulley (3) is in contact with the driven pulley (4), two ends of the output shaft (5) are respectively arranged on the pulley support (2) and the bearing cover plate (7) through a first bearing and a second bearing, the driving pulley (3) and the driven pulley (4) are located between the first bearing and the second bearing, a bearing baffle is arranged on one side of the bearing cover plate (7, be provided with between bearing apron (7) one side of bearing baffle and driving pulley (3) spring (8), driving pulley (3) and driven pulley (4) contact surface all are provided with corresponding concave-convex structure (9), still include motor (10), first hold-in range is connected on output shaft (5) and driving pulley (3) of motor (10), the second hold-in range is connected on output shaft (5) and driven pulley (4) of motor (10), take-up pulley (1) and second hold-in range contact.

2. A timing belt tensioning mechanism for a sander as set forth in claim 1, wherein: the tensioning wheel is characterized by further comprising a positioning plate (14), the positioning plate (14) is fixed on the belt wheel support (2) through screws, round holes are formed in the positioning plate (14), a pin shaft (13) of the tensioning wheel (1) penetrates through the round holes formed in the positioning plate (14) to be connected with the belt wheel support (2), and the portions, connected with the round holes formed in the positioning plate (14), of the pin shaft (13) are provided with straight grain structures.

3. A timing belt tensioning mechanism for a sander as set forth in claim 1, wherein: the concave-convex structure (9) comprises two bulges and two grooves which are arranged on the contact surface of the driving belt wheel (3) and the driven belt wheel (4), and the bulges and the grooves are arranged smoothly at intervals.