Belt tension attenuation detection mechanism

Abstract

The utility model discloses a belt tension attenuation detection mechanism, which comprises a bottom plate, a motor, a driving wheel, a driven wheel, two bearing seats, a belt wheel shaft, a shaft seat plate, a load bearing, a fixing plate and a tension meter, the bottom of the shaft seat plate is slidably connected to the bottom plate, the two bearing seats are fixed at the top of the shaft seat plate, the belt wheel shaft is rotatably connected to the two bearing seats, and the load bearing is fixed on the fixing plate. The center of the driven wheel and the center of the load bearing are fixed to the belt wheel shaft, the motor and the fixing plate are arranged at the two ends of the shaft seat plate along the X axis, the motor is fixed to the bottom plate, the center of the driving wheel is fixed to a rotating shaft of the motor, and the belt can be arranged on the driving wheel and the driven wheel in a sleeving mode. The fixing plate can be driven by external force to be away from the shaft seat plate along the X axis and pull the shaft seat plate through the measuring end of the tension meter, the belt can be tightened under pulling of the tension meter, the fixing plate can be fixedly connected with the bottom plate after the belt is tightened, and the tension meter can record the tension value of the belt in real time. The device is high in detection precision.

Description

Technical Field

[0001] The utility model relates to a detection mechanism, in particular to a belt tension attenuation detection mechanism. Background Art

[0002] At present, in the field of industrial robots, it is easy for the belt to jump teeth and collide with the machine due to the attenuation of belt tension. In addition, the attenuation of belt tension will also lead to a decrease in accuracy. In order to avoid the above situation, it is necessary to check the attenuation of belt tension. However, the detection of belt tension attenuation is usually done manually, which is not only inefficient but also has low detection accuracy, which is not conducive to industrial production. Utility Model Content

[0003] In order to overcome the above defects, the utility model provides a belt tension attenuation detection mechanism, which has the advantage of high detection accuracy.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a belt tension attenuation detection mechanism, including: a bottom plate, a motor, a driving wheel, a driven wheel, two bearing seats, a pulley shaft, a shaft seat plate, a weight, a fixed plate and a dynamometer, the bottom of the shaft seat plate is slidably connected to the bottom plate, the two bearing seats are fixed to the top of the shaft seat plate, the pulley shaft is rotatably connected to the two bearing seats, the center of the driven wheel and the center of the weight are fixed to the pulley shaft, the motor and the fixed plate are arranged at both ends of the shaft seat plate along the X-axis, the motor is fixed to the bottom plate, the center of the driving wheel is fixed to the rotating shaft of the motor, and the belt It can be sleeved on the driving wheel and the driven wheel, the bottom of the fixed plate can be slidably connected to the base plate and fixed to the base plate at any position within the travel range, the dynamometer is fixed to the top surface of the fixed plate, the measuring end of the dynamometer is connected to the shaft seat plate, the fixed plate can be driven by external force to move away from the shaft seat plate along the X-axis and pull the shaft seat plate through the measuring end of the dynamometer, the belt can be tightened by the pulling of the dynamometer, and after the belt is tightened, the fixed plate can be fixedly connected to the base plate, the driving wheel can rotate under the drive of the motor and drive the driven wheel and the load to rotate through the belt, and the dynamometer can record the tension value of the belt in real time.

[0005] Optionally, it also includes a motor fixing plate and a triangular fixing plate, wherein the motor fixing plate is vertically fixed to the top surface of the base plate, a first through hole is provided on the motor fixing plate, the motor is fixed to the motor fixing plate, the rotating shaft of the motor extends out of the first through hole, the triangular fixing plate is a right-angled triangle, there are two triangular fixing plates, and the right-angle sides of the triangular fixing plates are respectively fixedly connected to the base plate and the motor fixing plate.

[0006] Optionally, two slide rails are further included, and the two slide rails are fixed to the top surface of the base plate along the X-axis, and the bottom of the shaft seat plate is slidably connected to the slide rails.

[0007] Optionally, slots are provided on both sides of the fixing plate along the X-axis, and the first bolt can pass through the slot and be threadedly connected to the base plate. When the first bolt is not tightened, the rod of the bolt can move in the slot, and when the first bolt is tightened, the fixing plate can be fixedly connected to the base plate.

[0008] Optionally, the fixing plate is provided with a hanging ring at one end close to the tensile gauge, the measuring end of the tensile gauge is provided with a hook capable of hooking the hanging ring, the tensile gauge is fixed to the top surface of the fixing plate by a second bolt, the tensile gauge is provided with a display screen capable of displaying the tension value in real time, and the tensile gauge is also provided with a memory capable of storing tension data.

[0009] Optionally, the driven wheel is located between two bearing seats, the load is cylindrical, and one end of the load is detachably fixed to the pulley shaft by a third bolt and is located outside any one of the bearing seats.

[0010] Optionally, the motor is a servo motor.

[0011] Optionally, it also includes a blocking block and a fourth bolt, wherein the blocking block is fixed to the base plate and located between the motor fixing plate and the shaft seat plate, the blocking block is L-shaped, and a second through hole is provided on the side wall of the blocking block, the fourth bolt can pass through the second through hole and be threadedly connected to the shaft seat plate, the rod of the fourth bolt can move back and forth along the X-axis in the second through hole, and the outer diameter of the fourth bolt head is greater than the inner diameter of the second through hole.

[0012] Optionally, the bearing seat is detachably fixed to the shaft seat plate by a fifth bolt.

[0013] Optionally, the outer diameter of the driven wheel is greater than the outer diameter of the driving wheel.

[0014] The beneficial technical effect of the utility model is as follows: the belt tension attenuation detection mechanism comprises: a bottom plate, a motor, a driving wheel, a driven wheel, two bearing seats, a pulley shaft, a shaft seat plate, a load, a fixed plate and a dynamometer. When in use, the belt is first sleeved on the driving wheel and the driven wheel, and then the user pulls the fixed plate along the X-axis to make the fixed plate away from the shaft seat plate. At this time, the measuring end of the dynamometer pulls the shaft seat plate to move along the X-axis and tightens the belt. Since the belt has elastic force, the elasticity of the belt can pull the measuring end of the dynamometer during the tightening process, and when the dynamometer When the reading reaches the preset tension value, the user fixes the fixing plate and the bottom plate. At this time, the tension of the belt reaches the preset state, and then the motor rotates and drives the driving wheel to rotate. The driving wheel drives the driven wheel and the load to rotate through the belt to simulate the running state of the belt in the equipment. When the belt is aged, the belt will be over-stretched. At this time, the tension value of the belt decreases, and the tension value detected by the tension meter will also become smaller. The tension meter records the tension data in real time during the operation, so as to record the tension attenuation of the belt, which is more accurate than manual measurement. It has the advantage of high detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional view of the whole machine of the utility model;

[0016] Figure 2 It is a top view of the whole machine of the utility model;

[0017] Figure 3 It is a side view of the whole machine of the utility model;

[0018] in:

[0019] 1. Base plate; 2. Motor; 3. Driving wheel; 4. Driven wheel; 5. Bearing seat; 6. Pulley shaft; 7. Shaft seat plate; 8. Load; 9. Fixed plate; 10. Tension gauge; 11. Motor fixing plate; 12. Triangular fixing plate; 13. Slide rail; 14. Stop block; 15. Fourth bolt; 16. Notch; 17. Hanging ring; 18. Hook; 19. Belt. DETAILED DESCRIPTION

[0020] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0021] This specific embodiment describes in detail the belt tension attenuation detection mechanism described in this application, such as Figure 1-Figure 3As shown, the belt tension attenuation detection mechanism includes: a base plate 1, a motor 2, a driving wheel 3, a driven wheel 4, two bearing seats 5, a pulley shaft 6, a shaft seat plate 7, a weight 8, a fixed plate 9 and a dynamometer 10, the bottom of the shaft seat plate 7 is slidably connected to the base plate 1, the two bearing seats 5 are fixed to the top of the shaft seat plate 7, the pulley shaft 6 is rotatably connected to the two bearing seats 5, the center of the driven wheel 4 and the center of the weight 8 are fixed to the pulley shaft 6, the motor 2 and the fixed plate 9 are arranged at both ends of the shaft seat plate 7 along the X-axis, the motor 2 is fixed to the base plate 1, the center of the driving wheel 3 is fixed to the rotating shaft of the motor 2, and the belt 19 can be sleeved on the driving wheel 3 and the driven wheel 4 The bottom of the fixed plate 9 can be slidably connected to the base plate 1 and fixed to the base plate 1 at any position within the travel range. The dynamometer 10 is fixed to the top surface of the fixed plate 9. The measuring end of the dynamometer 10 is connected to the shaft seat plate 7. The fixed plate 9 can be driven by an external force to move away from the shaft seat plate 7 along the X-axis and pull the shaft seat plate 7 through the measuring end of the dynamometer 10. The belt 19 can be tightened under the pulling of the dynamometer 10. After the belt 19 is tightened, the fixed plate 9 can be fixedly connected to the base plate 1. The driving wheel 3 can rotate under the drive of the motor 2 and drive the driven wheel 4 and the load 8 to rotate through the belt 19. The dynamometer 10 can record the tension value of the belt 19 in real time. When in use, the belt 19 is first sleeved on the driving wheel 3 and the driven wheel 4, and then the user pulls the fixed plate 9 along the X-axis to make the fixed plate 9 away from the shaft seat plate 7. At this time, the measuring end of the dynamometer 10 pulls the shaft seat plate 7 to move along the X-axis and tighten the belt 19. Since the belt 19 has elastic force, the elasticity of the belt 19 can pull the measuring end of the dynamometer 10 during the tightening process. When the reading of the dynamometer 10 reaches the preset tension value, the user fixes the fixed plate 9 and the base plate 1. At this time, the tension of the belt 19 reaches the preset state, and then the motor 2 rotates and drives the driving wheel 3 to rotate. The driving wheel 3 drives the driven wheel 4 and the load 8 to rotate through the belt 19, thereby simulating the running state of the belt 19 in the equipment. When the belt 19 is aged, the belt 19 will be over-stretched. At this time, the tension value of the belt 19 is reduced, and the tension value detected by the dynamometer 10 will also become smaller. The dynamometer 10 records the tension data in real time during the operation, so as to record the tension attenuation of the belt 19, which has higher accuracy than manual measurement. It has the advantage of high detection accuracy. In this embodiment, the X-axis is parallel to the top surface of the bottom plate 1. In this embodiment, the tensile gauge 10 is a prior art, such as a mechanical tensile gauge or an electronic tensile gauge, and the tensile gauge in this embodiment is an electronic tensile gauge. In this embodiment, the conversion relationship between the tension value of the belt 19 and the tension value detected by the tensile gauge 10 is: the tension value of the belt 19 is half of the tension value detected by the tensile gauge 10, and the tensile gauge 10 is provided with a calculation module that can automatically convert the detected tension value into the tension value of the belt 19.

[0022] Optionally, this embodiment further includes a motor fixing plate 11 and a triangular fixing plate 12. The motor fixing plate 11 is vertically fixed to the top surface of the base plate 1. A first through hole is provided on the motor fixing plate 11. The motor 2 is fixed to the motor fixing plate 11. The rotating shaft of the motor 2 extends out of the first through hole. The triangular fixing plate 12 is a right-angled triangle. There are two triangular fixing plates 12. The right-angle sides of the triangular fixing plates 12 are respectively fixedly connected to the base plate 1 and the motor fixing plate 11.

[0023] Optionally, the present embodiment further includes two slide rails 13 , which are fixed to the top surface of the base plate 1 along the X-axis, and the bottom of the shaft seat plate 7 is slidably connected to the slide rails 13 .

[0024] In this embodiment, the fixing plate 9 is optionally provided with slots 16 on both sides along the X-axis, and the first bolt can pass through the slots 16 and be threadedly connected to the bottom plate 1. When the first bolt is not tightened, the rod of the bolt can move in the slots 16, and when the first bolt is tightened, the fixing plate 9 can be fixedly connected to the bottom plate 1. When the fixing plate 9 is moved, the rod of the first bolt can move in the slots 16, and the slots 16 can play a role of limiting.

[0025] In this embodiment, the fixing plate 9 is optionally provided with a hanging ring 17 at one end close to the tension meter 10, and the measuring end of the tension meter 10 is provided with a hook 18 capable of hooking the hanging ring 17. The tension meter 10 is fixed to the top surface of the fixing plate 9 by a second bolt, and the tension meter 10 is provided with a display screen capable of displaying the tension value in real time, and the tension meter 10 is also provided with a memory capable of storing tension data. In some optional embodiments, the tension meter 10 can also input the tension data into a computer through a data line, so that the user can remotely monitor the tension attenuation of the belt 19.

[0026] Optionally, in this embodiment, the driven wheel 4 is located between the two bearing seats 5, the weight 8 is cylindrical, and one end of the weight 8 is detachably fixed to the pulley shaft 6 by a third bolt and is located outside any one of the bearing seats 5. The user can adapt the belts 19 of different specifications by replacing the weights 8 of different weights.

[0027] Optionally in this embodiment, the motor 2 is a servo motor.

[0028] Optionally, the present embodiment further includes a blocking block 14 and a fourth bolt 15. The blocking block 14 is fixed to the bottom plate 1 and is located between the motor fixing plate 11 and the shaft seat plate 7. The blocking block 14 is L-shaped. The side wall of the blocking block 14 is provided with a second through hole. The fourth bolt 15 can pass through the second through hole and be threadedly connected with the shaft seat plate 7. The rod of the fourth bolt 15 can move back and forth along the X axis in the second through hole. The outer diameter of the head of the fourth bolt 15 is greater than the inner diameter of the second through hole. When the tension of the belt 19 decays, the elasticity of the belt 19 decreases and the belt 19 is stretched. The shaft seat plate 7 will gradually move toward the fixing plate 9. The rod of the fourth bolt 15 moves along the X axis in the second through hole until the head of the fourth bolt 15 abuts against the blocking block 14. At this time, due to the limiting of the blocking block 14, the shaft seat plate 7 cannot continue to move toward the fixing plate 9, which prevents the belt 19 from being excessively stretched and broken, thereby improving safety.

[0029] Optionally, in this embodiment, the bearing seat 5 is detachably fixed to the shaft seat plate 7 by a fifth bolt. When the belt 19 needs to be sleeved on the driving wheel 3 and the driven wheel 4, the bearing seat 5 only needs to be removed, and then one end of the belt 19 is passed around the bearing seat 5 and sleeved on the driven wheel 4, and then the bearing seat 5 is fixed to the shaft seat plate 7, and then the other end of the belt 19 is sleeved on the driving wheel 3, which is convenient to operate, and it is also easy to replace and maintain the bearing seat 5.

[0030] Optionally, in this embodiment, the outer diameter of the driven wheel 4 is greater than the outer diameter of the driving wheel 3 .

[0031] The use of the belt tension attenuation detection mechanism in this embodiment has the advantage of high detection accuracy.

Claims

1. A belt tension attenuation detection mechanism, characterized in that: include: A base plate (1), a motor (2), a driving wheel (3), a driven wheel (4), two bearing seats (5), a pulley shaft (6), a shaft seat plate (7), a weight (8), a fixed plate (9) and a dynamometer (10); the bottom of the shaft seat plate (7) is slidably connected to the base plate (1); the two bearing seats (5) are fixed to the top of the shaft seat plate (7); the pulley shaft (6) is rotatably connected to the two bearing seats (5); the center of the driven wheel (4) and the center of the weight (8) are fixed to the pulley shaft (6); the motor (2) and the fixed plate (9) are arranged at both ends of the shaft seat plate (7) along the X-axis; the motor (2) is fixed to the base plate (1); the center of the driving wheel (3) is fixed to the rotating shaft of the motor (2); the belt (19) can be sleeved on the driving wheel (3) and the driven wheel (4); the fixed plate (9) can be sleeved on the driving wheel (3) and the driven wheel (4); The bottom of the fixed plate (9) can be slidably connected to the bottom plate (1) and fixed to the bottom plate (1) at any position within the travel range; the dynamometer (10) is fixed to the top surface of the fixed plate (9); the measuring end of the dynamometer (10) is connected to the shaft seat plate (7); the fixed plate (9) can be driven by an external force to move away from the shaft seat plate (7) along the X-axis and pull the shaft seat plate (7) through the measuring end of the dynamometer (10); the belt (19) can be tightened under the pulling of the dynamometer (10); after the belt (19) is tightened, the fixed plate (9) can be fixedly connected to the bottom plate (1); the driving wheel (3) can be driven by the motor (2) to rotate and drive the driven wheel (4) and the load (8) to rotate through the belt (19); the dynamometer (10) can record the tension value of the belt (19) in real time.

2. The belt tension attenuation detection mechanism according to claim 1, characterized in that: It also comprises a motor fixing plate (11) and a triangular fixing plate (12), wherein the motor fixing plate (11) is vertically fixed to the top surface of the bottom plate (1), a first through hole is provided on the motor fixing plate (11), the motor (2) is fixed to the motor fixing plate (11), a rotating shaft of the motor (2) extends out of the first through hole, the triangular fixing plate (12) is in the shape of a right-angled triangle, there are two triangular fixing plates (12), and the right-angled sides of the triangular fixing plates (12) are respectively fixedly connected to the bottom plate (1) and the motor fixing plate (11).

3. The belt tension attenuation detection mechanism according to claim 1, characterized in that: It also includes two slide rails (13), which are fixed to the top surface of the base plate (1) along the X-axis, and the bottom of the shaft seat plate (7) is slidably connected to the slide rails (13).

4. The belt tension attenuation detection mechanism according to claim 1, characterized in that: The fixing plate (9) is provided with slots (16) on both sides along the X-axis. A first bolt can pass through the slot (16) and be threadedly connected to the base plate (1). When the first bolt is not tightened, the rod of the bolt can move in the slot (16). When the first bolt is tightened, the fixing plate (9) can be fixedly connected to the base plate (1).

5. The belt tension attenuation detection mechanism according to claim 1, characterized in that: The fixing plate (9) is provided with a hanging ring (17) at one end close to the tensile gauge (10); a hook (18) capable of hooking the hanging ring (17) is provided at the measuring end of the tensile gauge (10); the tensile gauge (10) is fixed to the top surface of the fixing plate (9) by a second bolt; the tensile gauge (10) is provided with a display screen capable of displaying the tensile force value in real time; and the tensile gauge (10) is also provided with a memory capable of storing the tensile force data.

6. The belt tension attenuation detection mechanism according to claim 1, characterized in that: The driven wheel (4) is located between two bearing seats (5), the load (8) is cylindrical, and one end of the load (8) is detachably fixed to the pulley shaft (6) by a third bolt and is located outside any one of the bearing seats (5).

7. The belt tension attenuation detection mechanism according to claim 1, characterized in that: The motor (2) is a servo motor.

8. The belt tension attenuation detection mechanism according to claim 2, characterized in that: The invention also comprises a blocking block (14) and a fourth bolt (15), wherein the blocking block (14) is fixed to the bottom plate (1) and is located between the motor fixing plate (11) and the shaft seat plate (7), the blocking block (14) is L-shaped, a second through hole is provided on the side wall of the blocking block (14), the fourth bolt (15) can pass through the second through hole and be threadedly connected to the shaft seat plate (7), the rod of the fourth bolt (15) can move back and forth along the X-axis in the second through hole, and the outer diameter of the head of the fourth bolt (15) is greater than the inner diameter of the second through hole.

9. The belt tension attenuation detection mechanism according to claim 1, characterized in that: The bearing seat (5) is detachably fixed to the shaft seat plate (7) by means of a fifth bolt.

10. The belt tension attenuation detection mechanism according to claim 1, characterized in that: The outer diameter of the driven wheel (4) is greater than the outer diameter of the driving wheel (3).

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