Belt linkage mechanism

Abstract

The utility model discloses a belt linkage mechanism. The belt linkage mechanism comprises a supporting plate; a first belt pulley module, the supporting frame is fixed to one side face of the supporting plate, the first bearing assembly is fixed to the side, close to the supporting plate, of the supporting frame, the third bearing is fixed to the other side, away from the supporting plate, of the supporting frame, and the two ends of the driving shaft are fixed to the first bearing assembly and the third bearing in a penetrating mode correspondingly. The first belt pulley is mounted on the driving shaft and arranged in the supporting frame; the second belt pulley module comprises a second bearing assembly fixed to the supporting plate, a transmission shaft fixed to the second bearing assembly in a penetrating mode and a second belt pulley installed at one end of the transmission shaft and arranged on one side face of the supporting plate. And the belt is connected between the first belt pulley and the second belt pulley. The first belt pulley realizes double-side / double-side supporting connection, so that the first belt pulley has extremely high bearing capacity, and the phenomenon of deformation cannot occur even if the first belt pulley is stressed excessively, so that enough smooth transmission and transmission quality are ensured.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, and specifically to a belt-driven mechanism. Background Technology

[0002] A belt-driven mechanism is one of the main ways to drive a motor. It generally includes a support plate, a first pulley mounted on one side of the support plate through a first bearing and a first shaft, a second pulley mounted on one side of the support plate through a second bearing and a second shaft, and a belt connecting the first pulley and the second pulley. The first shaft is connected to the motor so that it is driven to rotate by the motor, and the second shaft is connected to the load so that it drives the load to rotate.

[0003] However, the aforementioned first pulley is mounted on one side of the support plate via a first bearing and a first shaft. This first pulley is not connected or supported to the other side of the support plate, resulting in a single-sided support connection. Its load-bearing capacity is limited, and it is susceptible to deformation due to excessive force, leading to insufficient transmission smoothness and affecting transmission quality. For example, in a belt-driven cabinet ejection mechanism disclosed in Chinese Utility Model Patent Application No. 202322605489.2, the drive pulley is also a single-sided support connection, thus exhibiting the same technical problem.

[0004] In view of the above, the inventors propose the following technical solution. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a belt-driven mechanism.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The belt-driven mechanism includes: a support plate; a first pulley module, which includes a support frame fixed to one side of the support plate, a first bearing assembly fixed to the side of the support frame near the support plate, a third bearing fixed to the other side of the support frame away from the support plate, a drive shaft with its two ends respectively passing through and fixed to the first bearing assembly and the third bearing, a first pulley mounted on the drive shaft and placed in the support frame, and a drive wheel integrally connected to the end of the drive shaft exposed on the other side of the support plate; a second pulley module, which includes a second bearing assembly fixed to the support plate, a transmission shaft passing through and fixed to the second bearing assembly, and a second pulley mounted on one end of the transmission shaft and placed on one side of the support plate; and a belt connecting the first pulley and the second pulley.

[0007] Furthermore, in the above technical solution, the first bearing assembly includes a first bushing fixed to the side of the support frame near the support plate, and a first bearing and a second bearing respectively installed at both ends of the first bushing and spaced apart; the support frame is provided with a first hole through both sides, the first bushing passes through the first hole and is spaced apart from the inner wall of the first hole.

[0008] Furthermore, in the above technical solution, the first bushing is provided with a first mounting groove and a second mounting groove at both ends, and the inner walls of the first mounting groove and the second mounting groove are provided with a first retaining groove and a second retaining groove, respectively. The outer circles of the first bearing and the second bearing are respectively embedded and fixed in the first mounting groove and the second mounting groove, and are respectively engaged and fixed in the first retaining groove and the second retaining groove by the first retaining spring and the second retaining spring, so as to limit the first bearing and the second bearing in the first mounting groove and the second mounting groove, respectively.

[0009] Furthermore, in the above technical solution, the support frame can be adjusted relative to one side of the support plate.

[0010] Furthermore, in the above technical solution, a first vertical adjustment hole is provided on the side of the support frame that contacts the support plate, and a first screw hole that matches the first adjustment hole is provided on the support plate. After the first screw passes through the first adjustment hole, it is screwed and fixed to the first screw hole to fix the support frame and the support plate. The position of the support frame relative to the support plate can be adjusted after the first screw is loosened.

[0011] Furthermore, in the above technical solution, the second bearing assembly includes a second bushing fixed to the support plate and a fourth bearing and a fifth bearing respectively installed at both ends of the second bushing and spaced apart; a spacer ring is also sleeved on one end of the transmission shaft, one end of which abuts against the inner circumferential side of the fifth bearing, and the other end abuts against the side of the second pulley.

[0012] Furthermore, in the above technical solution, the second bushing is provided with a third mounting groove and a fourth mounting groove at both ends, and the inner walls of the third mounting groove and the fourth mounting groove are provided with a third retaining groove and a fourth retaining groove, respectively. The outer circles of the fourth bearing and the fifth bearing are respectively embedded and fixed in the third mounting groove and the fourth mounting groove, and are respectively fixed in the third retaining groove and the fourth retaining groove by the third retaining spring and the fourth retaining spring, so as to limit the fourth bearing and the fifth bearing in the third mounting groove and the fourth mounting groove, respectively.

[0013] Furthermore, in the above technical solution, one side of the support plate is also provided with a tension adjustment module for adjusting the tension of the belt.

[0014] Furthermore, in the above technical solution, the tension adjustment module includes a fan-shaped adjustment plate rotatably mounted on one side of the support plate, a rotatable rolling element mounted on the lower end of the fan-shaped adjustment plate, an arc-shaped adjustment hole disposed on the upper end of the fan-shaped adjustment plate, and an adjustment screw passing through the arc-shaped adjustment hole and fixed to one side of the support plate. The rolling element contacts the belt, and after the adjustment screw is loosened, it can drive the arc-shaped adjustment hole of the fan-shaped adjustment plate to rotate relative to the adjustment screw to adjust the position of the rolling element relative to the belt and thus adjust the tension of the belt.

[0015] Furthermore, in the above technical solution, the support plate has a first convex cylinder and a second convex cylinder stamped on one side. Both the first convex cylinder and the second convex cylinder are provided with internal threads. The fan-shaped adjusting plate is provided with a first through hole. The second screw passes through the first through hole and is screwed to the first convex cylinder. The adjusting screw is screwed to the second convex cylinder. The rolling element is two bearings assembled in parallel.

[0016] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The first pulley module in the present invention adopts a support frame as a support structure, and the support frame adopts the first bearing assembly and the third bearing on both sides to support and position the drive shaft, so that the first pulley fixedly installed on the drive shaft can achieve double-sided / double-sided support connection, so that it has extremely strong load-bearing capacity, and will not deform even if the force is too great, thereby ensuring smooth transmission and ensuring transmission quality. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a perspective view of the present invention from another angle;

[0019] Figure 3 This is a cross-sectional view of the present invention. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0021] See Figure 1-3 As shown, a belt-driven mechanism includes: a support plate 1, a first pulley module 2, a second pulley module 3, and a belt 4.

[0022] The first pulley module 2 includes a support frame 21 fixed to one side of the support plate 1, a first bearing assembly 22 fixed to the support frame 21 near the support plate 1, a third bearing 23 fixed to the support frame 21 away from the support plate 1, a drive shaft 24 with its two ends respectively passing through and fixed to the first bearing assembly 22 and the third bearing 23, and a first pulley 25 mounted on the drive shaft 24 and placed in the support frame 21. The drive wheel 26 integrally connected to the end of the drive shaft 24 is exposed on the other side of the support plate 1. The second pulley module 3 includes a second bearing assembly 31 fixed to the support plate 1, a transmission shaft 32 passing through and fixed to the second bearing assembly 31, and a second pulley 33 mounted on one end of the transmission shaft 32 and placed on one side of the support plate 1. A belt 4 connects the first pulley 25 and the second pulley 33 to make the first pulley 25 and the second pulley 33 move synchronously. In other words, the first pulley module 2 in this utility model uses a support frame 21 as a support structure, and the support frame 21 uses the first bearing assembly 22 and the third bearing 23 on both sides to simultaneously support and position the drive shaft 24, so that the first pulley 25 fixedly installed on the drive shaft 24 can achieve double-sided / double-sided support connection, so that it has extremely strong load-bearing capacity and will not deform even if the force is too great, thereby ensuring smooth transmission and transmission quality.

[0023] Specifically, the first bearing assembly 22 includes a first bushing 221 fixed to the side of the support frame 21 near the support plate 1, and a first bearing 222 and a second bearing 223 respectively installed at both ends of the first bushing 221 and spaced apart. The drive shaft 24 is simultaneously inserted and fixed into the inner circular holes of the first bearing 222 and the second bearing 223. The support frame 21 is provided with a first hole 210 penetrating both sides, through which the first bushing 221 passes and is spaced from the inner wall of the first hole 210. The first bearing assembly 22 uses the first bearing 222 and the second bearing 223 to simultaneously support the drive shaft 24, thereby making the installation of the drive shaft 24 more stable, providing better support strength for the drive shaft 24, and making the rotation of the drive shaft 24 smoother. The first bearing assembly 22 uses a first bushing 221 to be installed on both the first bearing 222 and the second bearing 223, serving as the main mounting body for the first bearing 222 and the second bearing 223. Later, the first bushing 221 is fixedly installed on the support frame 21, and the first bushing 221 passes through the first hole 210 and forms a gap with the inner wall of the first hole 210. This allows the first bushing 221 to move in the first hole 210 when the support frame 21 is adjusted relative to the support plate 1, thereby facilitating the adjustment of the position of the entire first pulley module 2 relative to the support plate 1 to meet different installation requirements.

[0024] The assembly structure of the first bushing 221 with the first bearing 222 and the second bearing 223 is as follows: The first bushing 221 has a first mounting groove 201 and a second mounting groove 202 at both ends. The inner walls of the first mounting groove 201 and the second mounting groove 202 are respectively provided with a first retaining groove and a second retaining groove. The outer circles of the first bearing 222 and the second bearing 223 are respectively embedded and fixed in the first mounting groove 201 and the second mounting groove 202, and are respectively secured in the first retaining groove and the second retaining groove by a first retaining spring 203 and a second retaining spring 204, thereby securing the first bearing... The first bearing 222 and the second bearing 223 are respectively confined in the first mounting groove 201 and the second mounting groove 202, thereby ensuring that the first bearing 222 and the second bearing 223 are stably installed at both ends of the first bushing 221. When it is necessary to disassemble the first bearing 222 and the second bearing 223, it is only necessary to compress the first snap ring 203 and the second snap ring 204 and remove them relative to the first snap groove and the second snap groove to release the confinement of the first bearing 222 and the second bearing 223, so that the first bearing 222 and the second bearing 223 can be removed relative to the first bushing 221. The disassembly and assembly are very convenient.

[0025] The support frame 21 can be adjusted relative to one side of the support plate 1 to meet different installation requirements. Specifically, the side of the support frame 21 that contacts the support plate 1 is provided with a first vertical adjustment hole 211. The support plate 1 is provided with a first screw hole that matches the first adjustment hole 211. A first screw passes through the first adjustment hole 211 and is screwed into the first screw hole to fix the support frame 21 to the support plate 1. After loosening the first screw, the position of the support frame 21 relative to the support plate 1 can be adjusted. After completion, the first screw can be tightened again. This operation is very simple.

[0026] The specific structure of the second bearing assembly 31 is as follows: The second bearing assembly 31 includes a second bushing 311 fixed on the support plate 1 and a fourth bearing 312 and a fifth bearing 313 respectively installed at both ends of the second bushing 311 and spaced apart; a spacer ring 321 is also sleeved on one end of the transmission shaft 32. One end of the spacer ring 321 abuts against the inner circumference of the fifth bearing 313, and the other end abuts against the side of the second pulley 33. It can ensure that the distance between the second pulley 33 and one side of the support plate 1 is a fixed value, thus ensuring the installation requirements.

[0027] The second bushing 311 has a third mounting groove 301 and a fourth mounting groove 302 at its two ends, respectively. The inner walls of the third mounting groove 301 and the fourth mounting groove 302 are respectively provided with a third retaining groove and a fourth retaining groove. The outer circles of the fourth bearing 312 and the fifth bearing 313 are respectively embedded and fixed in the third mounting groove 301 and the fourth mounting groove 302, and are respectively snapped and fixed in the third retaining groove and the fourth retaining groove by the third retaining spring 303 and the fourth retaining spring 304, so as to limit the fourth bearing 312 and the fifth bearing 313 in the third mounting groove 301 and the fourth mounting groove 302.

[0028] The other side of the support plate 1 is provided with a positioning mounting groove 101 that extends horizontally through both ends. The bottom of the positioning mounting groove 101 is provided with a first mounting hole 102. The other side of the support plate 1 is also provided with a plurality of second mounting holes 103. When the present invention is installed on the equipment frame, the positioning mounting groove 101 is aligned with the positioning protrusion on the equipment frame to achieve the purpose of pre-positioning. At the same time, it can also prevent the present invention from slipping in the vertical direction. Furthermore, it facilitates the correspondence between the first mounting hole 102 and the second mounting hole 103 and the first screw hole and the second screw hole of the equipment frame, respectively. Later, the first mounting screw and the second mounting screw pass through the first mounting hole 102 and the second mounting hole 103, respectively, and are screwed into the first screw hole and the second screw hole of the equipment frame, respectively, to ensure the stability of the installation structure.

[0029] One side of the support plate 1 is also provided with a tension adjustment module 5 for adjusting the tension of the belt 4. The tension adjustment module 5 is used to adjust the tension of the belt 4 to meet different usage requirements.

[0030] Specifically, the tension adjustment module 5 includes a fan-shaped adjustment plate 51 rotatably mounted on one side of the support plate 1, a rolling element 52 mounted on the lower end of the fan-shaped adjustment plate 51 and rotatable, an arc-shaped adjustment hole 511 disposed on the upper end of the fan-shaped adjustment plate 51, and an adjustment screw 53 passing through the arc-shaped adjustment hole 511 and fixed to one side of the support plate 1. The rolling element 52 contacts the belt 4, and after loosening the adjustment screw 53, it can drive the arc-shaped adjustment hole 511 of the fan-shaped adjustment plate 51 to rotate relative to the adjustment screw 53 to adjust the position of the rolling element 52 relative to the belt 4 to adjust the tension of the belt 4. The tension adjustment module 5 uses a fan-shaped adjustment plate 51 to achieve rotation. When the fan-shaped adjustment plate 51 rotates, it rotates relative to the adjustment screw 53 through the arc-shaped adjustment hole 511 at the upper end of the fan-shaped adjustment plate 51. The rotation is extremely smooth. After the adjustment is completed, the adjustment screw 53 is locked again to lock the fan-shaped adjustment plate 51 relative to the support plate 1, thereby completing the adjustment of the tension of the belt 4 by the rolling element 52.

[0031] The support plate 1 has a first protruding cylinder 11 and a second protruding cylinder 12 stamped on one side. Its structure is extremely simple, and it eliminates the need for additional protruding cylinders, saving installation steps and improving product quality and subsequent assembly efficiency. Both the first and second protruding cylinders 11 and 12 have internal threads. The fan-shaped adjusting plate 51 has a first through hole. A second screw 13 passes through this first through hole and is screwed to the first protruding cylinder 11. The adjusting screw 53 is screwed to the second protruding cylinder 12, making installation convenient.

[0032] The rolling element 52 consists of two bearings assembled side by side, which can form a larger contact area with the belt, thereby better supporting the belt and thus better adjusting the belt tension.

[0033] In summary, the first pulley module 2 in this utility model uses a support frame 21 as a support structure. The support frame 21 uses the first bearing assembly 22 and the third bearing 23 on both sides to simultaneously support and position the drive shaft 24, so that the first pulley 25 fixedly installed on the drive shaft 24 can achieve double-sided / double-sided support connection, so that it has a very strong load-bearing capacity and will not deform even if the force is too great, thereby ensuring smooth transmission and transmission quality.

[0034] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A belt-driven mechanism, characterized in that: It includes: Support plate (1); The first pulley module (2) includes a support frame (21) fixed to one side of the support plate (1), a first bearing assembly (22) fixed to the side of the support frame (21) near the support plate (1), a third bearing (23) fixed to the other side of the support frame (21) away from the support plate (1), a drive shaft (24) with its two ends respectively passing through and fixed to the first bearing assembly (22) and the third bearing (23), and a first pulley (25) mounted on the drive shaft (24) and placed in the support frame (21). The drive wheel (26) integrally connected to the end of the drive shaft (24) is exposed on the other side of the support plate (1). The second pulley module (3) includes a second bearing assembly (31) fixed on the support plate (1), a drive shaft (32) that is fixed to the second bearing assembly (31), and a second pulley (33) installed at one end of the drive shaft (32) and placed on one side of the support plate (1). A belt (4) is connected between a first pulley (25) and a second pulley (33).

2. The belt-driven mechanism according to claim 1, characterized in that: The first bearing assembly (22) includes a first bushing (221) fixed to the side of the support frame (21) near the support plate (1) and a first bearing (222) and a second bearing (223) respectively installed at both ends of the first bushing (221) and spaced apart; the support frame (21) is provided with a first hole (210) that passes through both sides, the first bushing (221) passes through the first hole (210) and is spaced apart from the inner wall of the first hole (210).

3. The belt-driven mechanism according to claim 2, characterized in that: The first bushing (221) has a first mounting groove (201) and a second mounting groove (202) at both ends. The inner walls of the first mounting groove (201) and the second mounting groove (202) are respectively provided with a first retaining groove and a second retaining groove. The outer circles of the first bearing (222) and the second bearing (223) are respectively embedded and fixed in the first mounting groove (201) and the second mounting groove (202), and are respectively snapped and fixed in the first retaining groove and the second retaining groove by the first retaining spring (203) and the second retaining spring (204), so as to limit the first bearing (222) and the second bearing (223) in the first mounting groove (201) and the second mounting groove (202).

4. The belt-driven mechanism according to claim 2, characterized in that: The support frame (21) can be adjusted relative to one side of the support plate (1).

5. The belt-driven mechanism according to claim 4, characterized in that: The support frame (21) is provided with a first vertical adjustment hole (211) on the side that contacts the support plate (1). The support plate (1) is provided with a first screw hole that matches the first adjustment hole (211). The first screw passes through the first adjustment hole (211) and is screwed into the first screw hole to fix the support frame (21) and the support plate (1) in a fixed connection. The position of the support frame (21) relative to the support plate (1) can be adjusted after the first screw is loosened.

6. The belt-driven mechanism according to claim 4, characterized in that: The second bearing assembly (31) includes a second bushing (311) fixed on the support plate (1) and a fourth bearing (312) and a fifth bearing (313) respectively installed at both ends of the second bushing (311) and spaced apart; a partition ring (321) is also sleeved on one end of the transmission shaft (32), one end of which abuts against the inner side of the fifth bearing (313), and the other end abuts against the side of the second pulley (33).

7. The belt-driven mechanism according to claim 6, characterized in that: The second bushing (311) is provided with a third mounting groove (301) and a fourth mounting groove (302) at both ends. The inner walls of the third mounting groove (301) and the fourth mounting groove (302) are provided with a third retaining groove and a fourth retaining groove, respectively. The outer circles of the fourth bearing (312) and the fifth bearing (313) are respectively embedded and fixed in the third mounting groove (301) and the fourth mounting groove (302), and are respectively snapped and fixed in the third retaining groove and the fourth retaining groove by the third retaining spring (303) and the fourth retaining spring (304), so as to limit the fourth bearing (312) and the fifth bearing (313) in the third mounting groove (301) and the fourth mounting groove (302), respectively.

8. The belt-driven mechanism according to any one of claims 1-7, characterized in that: One side of the support plate (1) is also provided with a tension adjustment module (5) for adjusting the tension of the belt (4).

9. The belt-driven mechanism according to claim 8, characterized in that: The tension adjustment module (5) includes a fan-shaped adjustment plate (51) rotatably mounted on one side of the support plate (1), a rotatable rolling element (52) mounted on the lower end of the fan-shaped adjustment plate (51), an arc-shaped adjustment hole (511) set on the upper end of the fan-shaped adjustment plate (51), and an adjustment screw (53) passing through the arc-shaped adjustment hole (511) and fixed to one side of the support plate (1). The rolling element (52) contacts the belt (4), and after loosening the adjustment screw (53), it can drive the arc-shaped adjustment hole (511) of the fan-shaped adjustment plate (51) to rotate relative to the adjustment screw (53) to adjust the position of the rolling element (52) relative to the belt (4) to adjust the tension of the belt (4).

10. The belt-driven mechanism according to claim 9, characterized in that: The support plate (1) has a first protruding cylinder (11) and a second protruding cylinder (12) stamped on one side. Both the first protruding cylinder (11) and the second protruding cylinder (12) are provided with internal threads. The fan-shaped adjusting plate (51) is provided with a first through hole. The second screw (13) passes through the first through hole and is screwed to the first protruding cylinder (11). The adjusting screw (53) is screwed to the second protruding cylinder (12). The rolling element (52) consists of two bearings assembled in parallel.

Images