Tightness adjusting device of lamp transmission belt

Abstract

The utility model discloses a tightness adjusting device for a lamp transmission belt, and relates to the technical field of lamp equipment. A plurality of transmission wheels and a belt in transmission connection with the transmission wheels are arranged on the lamp; one transmission wheel is a movable transmission wheel, and the tightness of the belt is adjusted by adjusting the position of the movable transmission wheel relative to other transmission wheels; the lamp is also connected with a movable adjusting sheet; the movable transmission wheel is fixedly connected with the adjusting sheet; the adjusting device comprises a sliding rail and a dynamometer, and the dynamometer is in sliding connection with the sliding rail; a lamp and a first fixing base are fixedly arranged in the front direction and the rear direction of the sliding rail correspondingly. A telescopic unit is arranged on the first fixed seat; one end of the dynamometer is in transmission connection with the adjusting sheet, and the other end is in transmission connection with the telescopic unit. Compared with the prior art, the belt adjusting time is short, the belt adjusting device can be widely applied, the belt adjusting efficiency is effectively improved, and then the overall production efficiency of the lamp is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lamp equipment, and in particular to a tension adjustment device for a lamp transmission belt. Background Art

[0002] Stage lights are professional lights designed for effects. According to the scene layout and performance requirements, by adjusting the lighting angle of the lamp, ensure that the light can accurately illuminate the area that needs to be illuminated, achieve uniform light distribution and overall coordination of the effect. Common methods for adjusting the angle of lamps include electrical control adjustment, belt drive adjustment, etc. In the production process of lighting equipment, employees are required to adjust the belt tension of parts and components, and then measure the push-pull force value after adjustment. If the value does not meet the requirements, it is necessary to put down the push-pull force gauge to adjust the belt and measure again. Repeat the above operations until the required value is reached, which is inconvenient to operate.

[0003] If the adjustment deviation is large during the belt adjustment process, the belt tension is too high, which will increase the fatigue of the belt and related transmission wheels, and even produce excessive torque on the motor shaft, causing it to bend and produce excessive motor shaft beating, resulting in premature failure of the above components, as well as additional noise, vibration, etc. If the belt tension is too low, the V-belt will slip, reducing the efficiency of the entire belt transmission. If the slip rate of the entire belt drive reaches 6%, the entire transmission efficiency will drop to 88%, which will cause overheating, causing the belt to fail prematurely, and the pulley will be excessively worn, and the additional energy consumption will increase sharply. When the slip rate reaches 8%, the transmission efficiency will drop to 80%, and the belt drive can no longer perform its transmission function normally. In summary, the overall disadvantage is that the belt adjustment requires manual repeated adjustment, the operation is inconvenient, the time is long, and it is easy to have deviations, instability and other problems.

[0004] Therefore, there is an urgent need to provide a device for adjusting the tension of a lamp transmission belt to solve the above technical problems. Summary of the invention

[0005] In view of the problems in the related art, the utility model proposes a tension adjustment device for a lamp transmission belt, which solves the problems that traditional belt adjustment is inconvenient to operate, takes a long time, and has unstable belt tension deviation.

[0006] The utility model is achieved in this way:

[0007] A device for adjusting the tension of a lamp drive belt, wherein the lamp is provided with a plurality of drive wheels and belts connected to the drive wheels; one of the drive wheels is a dynamic drive wheel, and the belt can be adjusted to be loose or tight by adjusting the position of the dynamic drive wheel relative to other drive wheels; the lamp is also provided with a movable adjustment plate; the dynamic drive wheel is fixedly connected to the adjustment plate;

[0008] The adjustment device includes a slide rail and a dynamometer, the dynamometer is slidably connected to the slide rail; the lamp and the first fixing seat are respectively fixed at the front and rear positions along the direction of the slide rail; a telescopic unit is provided on the first fixing seat; one end of the dynamometer is transmission connected to the adjustment plate, and the other end is transmission connected to the telescopic unit.

[0009] The dynamic transmission wheel refers to a transmission wheel that can adjust its position; correspondingly, other transmission wheels are fixed in fixed positions on the lamp; the tightness of the belt can be adjusted by adjusting the dynamic transmission wheel and the adjusting plate; after the belt is adjusted, the adjusting plate is detachably fixed; through the coordinated setting of the telescopic unit, the dynamometer and the slide rail, the belt tightness can be accurately adjusted, and the angle / direction of the belt adjustment is unique, avoiding the belt from being offset or misplaced on the transmission wheel; in addition, compared with the existing technology, the efficiency of belt adjustment is effectively improved.

[0010] Furthermore, a second fixing seat is provided in front of the dynamometer for detachably fixing the lamp.

[0011] As a further optimization of the above scheme, the telescopic unit is a connecting rod mechanism, including a first connecting rod, a second connecting rod and a third connecting rod; the two ends of the second connecting rod are rotatably connected to the first connecting rod and the third connecting rod respectively; one end of the first connecting rod is connected to the dynamometer, and the third connecting rod is rotatably connected to the first fixed seat.

[0012] As a further optimization of the above scheme, the third connecting rod includes a connecting rod portion and a handle portion, the angle formed between the connecting rod portion and the handle portion is an obtuse angle, and the opening of the angle faces the rear position; one end of the second connecting rod is connected to the junction of the connecting rod portion and the handle portion; the end of the connecting rod portion is rotatably connected to the first fixed seat.

[0013] The handle is provided to facilitate the user to operate and exert force to adjust the belt.

[0014] As a further optimization of the above solution, the front end of the first connecting rod is provided with an internal thread; the front end of the first connecting rod is also provided with an adjusting piece that is matched with the internal thread; the adjusting piece is freely extended and retracted by matching with the thread of the internal thread;

[0015] The adjusting member presses the dynamometer forward to move the dynamometer forward.

[0016] The dynamometer is pushed forward by the telescopic unit to realize the transmission of the dynamometer and the large adjustment of the belt tightness; the thread matching depth of the adjusting piece is used to perform "micro-expansion" at the front end of the first connecting rod, thereby realizing the fine adjustment of the belt tightness.

[0017] As a further optimization of the above solution, the first fixing seat is provided with a sleeve portion with an opening facing forward and backward; the sleeve portion and the first connecting rod are adapted to each other; the first connecting rod passes through the sleeve portion and is then connected to the dynamometer.

[0018] The sleeve portion is used to limit the moving direction of the first connecting rod, so that the first connecting rod can move back and forth along with the dynamometer.

[0019] As a further optimization of the above solution, the slide rail includes at least one track fixedly arranged below the dynamometer, and the track is arranged in a front-to-back direction; a slide groove is also arranged on the lower side of the slide rail; and the slide groove and the track are adapted to each other.

[0020] As a further optimization of the above solution, a V-shaped groove is respectively provided on the left side and the right side of the track; the V-shaped groove is extended along the track;

[0021] The inner side wall of the slide groove is provided with a limiting convex strip which is matched with the V-shaped groove.

[0022] "Left" and "right" refer to the left and right relative to the front position; setting a V-shaped groove and a limit convex strip can further limit the relative position of the slide and the track, so that the slide and the dynamometer can only move in the front and rear direction along the track.

[0023] As a further optimization of the above solution, the two ends of the adjustment piece are respectively a first fixed node and a second fixed node, and the dynamic transmission wheel is arranged at the first fixed node; the adjustment piece is provided with a rotation node between the first fixed node and the second fixed node; the adjustment piece is movably connected to the lamp through the rotation node;

[0024] After the belt is adjusted, the tightness of the belt is fixed by fixing the second fixing node.

[0025] A through hole is provided on the lamp, and a through hole is also provided at the second node; a screw is passed through the two through holes and matched with a nut to fix the adjusting plate and the corresponding dynamic transmission wheel, thereby fixing the tightness of the belt.

[0026] As a further optimization of the above solution, the dynamometer is provided with a push rod arranged forward, and a force sensor is installed at the end of the push rod;

[0027] The push rod pushes the adjusting piece forward to adjust the tightness or looseness of the belt.

[0028] When the push rod moves forward, it drives the adjusting plate to rotate, making the belt tighter;

[0029] When the push rod moves backward, the adjusting piece automatically rotates under the elastic force of the belt, and the belt becomes relatively loose.

[0030] The beneficial effects are as follows:

[0031] The utility model provides a device for adjusting the tension of a lamp transmission belt. Through the coordinated arrangement of a telescopic unit, a dynamometer and a slide rail, precise adjustment of the belt tension can be achieved, and the belt adjustment angle / direction is unique, thereby preventing the belt from being offset or misplaced on the transmission wheel. Compared with the prior art, the belt adjustment takes less time and can be widely used, thereby effectively improving the efficiency of the belt adjustment, thereby improving the overall production efficiency of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of the structure of a lamp and an adjustment device provided in an embodiment of the utility model;

[0033] Figure 2 for Figure 1 A top view of

[0034] Figure 3 for Figure 2 A local enlarged schematic diagram at point a;

[0035] Figure 4 for Figure 1 Front view of

[0036] Figure 5 for Figure 4 A local enlarged schematic diagram at point b;

[0037] Figure 6 for Figure 4 A local enlarged schematic diagram at c;

[0038] Figure 7 for Figure 6 Schematic cross-section diagram of

[0039] Figure 8 for Figure 1 A schematic cross-section diagram at the slide rail;

[0040] Fig. 9 for Figure 8 A local enlarged schematic diagram at point d.

[0041] Reference numerals:

[0042] 1. lamp; 11. driving wheel; 12. belt; 13. adjusting piece; 131. first fixed node; 132. second fixed node; 133. rotating node;

[0043] 2. Adjustment device; 21. Slide rail; 211. Track; 212. Slide groove; 213. V-shaped groove; 214. Limiting convex strip; 22. Dynamometer; 221. Ejector rod;

[0044] 3. first fixing seat; 31. sleeve portion;

[0045] 4. Second fixed seat;

[0046] 5. telescopic unit; 51. first connecting rod; 511. internal thread; 52. second connecting rod; 53. third connecting rod; 531. connecting rod portion; 532. handle portion;

[0047] 6. Adjustment parts. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0049] like Figures 1 to 9 As shown, this embodiment provides a tension adjustment device 2 for a driving belt 12 of a lamp 1, wherein the lamp 1 is provided with a plurality of driving wheels and a belt 12 drivingly connected to the driving wheels; one of the driving wheels is a dynamic driving wheel 11, and the tension of the belt 12 can be adjusted by adjusting the position of the dynamic driving wheel 11 relative to the other driving wheels;

[0050] The lamp 1 is also connected with a movable adjusting piece 13; in this embodiment, the two ends of the adjusting piece 13 are respectively a first fixed node 131 and a second fixed node 132, and the dynamic transmission wheel 11 is arranged at the first fixed node 131; the adjusting piece 13 is provided with a rotating node 133 between the first fixed node 131 and the second fixed node 132; the adjusting piece 13 is movably connected with the lamp 1 through the rotating node 133;

[0051] After the belt 12 is adjusted, the tightness of the belt 12 is fixed by fixing the second fixing node 132. Specifically, a through hole is provided on the lamp 1, and a through hole is also provided at the second node; a screw is passed through the two through holes and matched with a nut to fix the adjusting piece 13 and the corresponding dynamic transmission wheel 11, thereby fixing the tightness of the belt 12.

[0052] The adjustment device 2 includes a slide rail 21 and a dynamometer 22, and the dynamometer 22 is slidably connected to the slide rail 21; in this embodiment, the slide rail 21 includes two rails 211 fixedly arranged below the dynamometer 22, and the rails 211 are arranged in a front-to-back direction; the lower side of the slide rail 21 is also provided with two slide grooves 212; the slide grooves 212 and the rails 211 are adapted to each other. Among them, the left side and the right side of the rail 211 are respectively provided with a V-shaped groove 213; the V-shaped groove 213 is extended along the rail 211; the inner side wall of the slide groove 212 is provided with a limiting convex strip 214 adapted to the V-shaped groove 213.

[0053] "Left" and "right" refer to the left and right relative to the front position; setting a V-shaped groove 213 and a limiting ridge 214 can further limit the relative position of the slide groove 212 and the track 211, so that the slide groove 212 and the dynamometer 22 can only move in the forward and backward directions along the track 211.

[0054] A first fixing seat 3 and a second fixing seat 4 are respectively fixedly provided at the front and rear positions along the direction of the slide rail 21;

[0055] The second fixing base 4 is used to fix and install the lamp 1 as a whole; the lamp 1 and the second fixing base 4 are detachably connected;

[0056] A telescopic unit 5 is provided on the first fixed seat 3; in the present embodiment, the telescopic unit 5 is a connecting rod mechanism, comprising a first connecting rod 51, a second connecting rod 52 and a third connecting rod 53; both ends of the second connecting rod 52 are rotatably connected to the first connecting rod 51 and the third connecting rod 53 respectively; one end of the first connecting rod 51 is transmission-connected to the dynamometer 22, and the third connecting rod 53 is also rotatably connected to the first fixed seat 3.

[0057] The third connecting rod 53 includes a connecting rod portion 531 and a handle portion 532. The angle formed between the connecting rod portion 531 and the handle portion 532 is an obtuse angle, and the opening of the angle faces the rear. One end of the second connecting rod 52 is connected to the junction of the connecting rod portion 531 and the handle portion 532. The end of the connecting rod portion 531 is rotatably connected to the first fixing seat 3. The handle portion 532 is provided to facilitate the user to operate and exert force on the adjustment belt 12.

[0058] In this embodiment, an inner thread 511 is provided at the front end of the first connecting rod 51; an adjusting member 6 is also provided at the front end of the first connecting rod 51 to cooperate with the inner thread 511; the adjusting member 6 is freely extended and retracted by cooperating with the inner thread 511;

[0059] The adjusting member 6 pushes the dynamometer 22 forward to move the dynamometer 22 forward. The telescopic unit 5 pushes the dynamometer 22 forward to achieve transmission of the dynamometer 22, thereby achieving a large adjustment of the tightness of the belt 12; the thread matching depth of the adjusting member 6 is used to perform "micro-expansion" at the front end of the first connecting rod 51, thereby achieving fine adjustment of the tightness of the belt 12.

[0060] In this embodiment, a sleeve portion 31 with an opening facing forward and backward is provided on the first fixing seat 3 ; the sleeve portion 31 and the first connecting rod 51 are adapted to each other; the first connecting rod 51 passes through the sleeve portion 31 and is then connected to the dynamometer 22 .

[0061] The sleeve portion 31 is used to limit the movement direction of the first connecting rod 51 so that the first connecting rod 51 can move back and forth along with the dynamometer 22 .

[0062] One end of the dynamometer 22 is transmission-connected to the adjusting piece 13, and the other end is transmission-connected to the telescopic unit 5. In this embodiment, the dynamometer 22 is provided with a forwardly disposed push rod 221, and a force sensor is mounted at the end of the push rod 221; the push rod 221 pushes forward against the adjusting piece 13 to adjust the looseness or tightness of the belt 12.

[0063] When the top rod 221 moves forward, it drives the adjusting plate 13 to rotate, making the belt 12 tighter;

[0064] When the push rod 221 moves backward, the adjusting piece 13 automatically rotates under the elastic force of the belt 12, and the belt 12 becomes relatively loose.

[0065] The dynamic transmission wheel 11 refers to a transmission wheel that can adjust its position; correspondingly, the other transmission wheels are fixed at fixed positions on the lamp 1; the tightness of the belt 12 can be adjusted by adjusting the dynamic transmission wheel 11 and the adjusting plate 13; after the belt 12 is adjusted, the adjusting plate 13 is detachably fixed; through the coordinated setting of the telescopic unit 5, the dynamometer 22 and the slide rail 21, the tightness of the belt 12 can be accurately adjusted, and the adjustment angle / direction of the belt 12 is unique, avoiding the belt 12 from being offset or misplaced on the transmission wheel; in addition, compared with the prior art, the efficiency of the belt 12 adjustment is effectively improved.

[0066] According to the disclosure and teaching of the above specification, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.

Claims

1. A device for adjusting the tension of a lamp drive belt, wherein the lamp is provided with a plurality of drive wheels and belts connected to the drive wheels; one of the drive wheels is a dynamic drive wheel, and the tension of the belt can be adjusted by adjusting the position of the dynamic drive wheel relative to the other drive wheels; the characteristics are as follows: The lamp is also connected with a movable adjustment plate; the dynamic transmission wheel is fixedly connected to the adjustment plate; The adjustment device includes a slide rail and a dynamometer, the dynamometer is slidably connected to the slide rail; the lamp and the first fixing seat are respectively fixed at the front and rear positions along the direction of the slide rail; a telescopic unit is provided on the first fixing seat; one end of the dynamometer is transmission connected to the adjustment plate, and the other end is transmission connected to the telescopic unit.

2. The device for adjusting the tension of a lamp drive belt according to claim 1, characterized in that: A second fixing seat is provided in front of the dynamometer for detachably fixing the lamp.

3. The device for adjusting the tension of a lamp drive belt according to claim 1, characterized in that: The telescopic unit is a connecting rod mechanism, including a first connecting rod, a second connecting rod and a third connecting rod; the two ends of the second connecting rod are rotatably connected to the first connecting rod and the third connecting rod respectively; one end of the first connecting rod is connected to the dynamometer, and the third connecting rod is rotatably connected to the first fixing seat.

4. The device for adjusting the tension of a lamp transmission belt according to claim 3, characterized in that: The third connecting rod includes a connecting rod portion and a handle portion, the angle formed between the connecting rod portion and the handle portion is an obtuse angle, and the opening of the angle faces the rear direction; one end of the second connecting rod is connected to the junction of the connecting rod portion and the handle portion; the end of the connecting rod portion is rotatably connected to the first fixed seat.

5. The device for adjusting the tension of a lamp drive belt according to claim 3, characterized in that: The front end of the first connecting rod is provided with an internal thread; the front end of the first connecting rod is also provided with an adjusting piece that is connected with the internal thread; the adjusting piece is freely extended and retracted by being connected with the thread of the internal thread; The adjusting member presses the dynamometer forward to move the dynamometer forward.

6. The device for adjusting the tension of a lamp drive belt according to claim 3, characterized in that: The first fixing seat is provided with a sleeve portion with an opening facing forward and backward; the sleeve portion and the first connecting rod are adapted to each other; the first connecting rod passes through the sleeve portion and is then connected to the dynamometer.

7. The device for adjusting the tension of a lamp drive belt according to claim 1, characterized in that: The slide rail comprises at least one track fixedly arranged below the dynamometer, and the track is arranged in a front-to-back direction; a slide groove is also arranged on the lower side of the slide rail; and the slide groove and the track are adapted to each other.

8. The device for adjusting the tension of a lamp drive belt according to claim 7, characterized in that: The left side and the right side of the track are respectively provided with a V-shaped groove; the V-shaped groove is extended along the track; The inner side wall of the slide groove is provided with a limiting convex strip which is matched with the V-shaped groove.

9. The device for adjusting the tension of a lamp drive belt according to claim 1, characterized in that: The two ends of the adjustment piece are respectively a first fixed node and a second fixed node, and the dynamic transmission wheel is arranged at the first fixed node; the adjustment piece is provided with a rotation node between the first fixed node and the second fixed node; the adjustment piece is movably connected to the lamp through the rotation node; After the belt is adjusted, the tightness of the belt is fixed by fixing the second fixing node.

10. The device for adjusting the tension of a lamp drive belt according to claim 9, characterized in that: The dynamometer is provided with a push rod arranged forward, and a force sensor is installed at the end of the push rod; The push rod pushes the adjusting piece forward to adjust the tightness or looseness of the belt.

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