CN204387232U - A kind of belt tension device of Adjustable head lamp - Google Patents

Abstract

The utility model provides a belt elastic device for a moving head lamp. The moving head lamp includes a bracket, a lamp rotatably connected to the bracket, and a drive mechanism for driving the lamp to rotate; the drive mechanism includes A motor, a driving gear connected to the rotating shaft of the motor, a driven gear connected to the driving gear through a belt; the belt elastic device is installed between the motor and the bracket; the belt elastic device includes a fixed plate and an adjusting plate; the motor is fixedly installed on the fixing plate; the fixing plate is installed on the adjusting plate, and is adjusted and fixed relative to the adjusting plate; the adjusting plate is fixedly installed on the bracket superior. The utility model can not only adjust the tightness of the belt conveniently, but also solve the problem that the transmission mechanism is not parallel after the tightness (that is, the center distance) is adjusted.

Description

Belt tensioning device for a moving head light

technical field

The utility model relates to the technical field of mechanical belt transmission, in particular to a belt elastic device for a moving head lamp.

Background technique

Belt drive is a common mechanical transmission device, which is used in various occasions. After the belt has been used for a period of time, it will inevitably loosen, causing the belt to slip, so the tension of the belt needs to be adjusted. At present, the following methods are generally used for belt tensioning:

(1) Tension the belt with a tension pulley. The tensioning pulley is arranged on the inner side of the loose side, so that the belt is only subjected to one-way bending; at the same time, in order to ensure that the wrap angle of the small pulley does not decrease too much, the tensioning pulley should be installed as close as possible to the large pulley; however, the existing tensioning pulley After the tensioner is installed, the position of the tensioner cannot be adjusted. Therefore, if the installation is not in place, the tensioning effect is still relatively small, and it is inconvenient to adjust.

(2) Adjust the center distance between the driving wheel and the driven wheel to tension the belt. However, adjusting the center distance to move the position of the driven wheel or the driving wheel may easily cause the transmission mechanism to be non-parallel, affect the transmission effect or increase wear and the like.

Utility model content

The technical problem to be solved by the utility model is to provide a belt tensioning device for a moving head lamp, which can not only adjust the tightness of the belt conveniently, but also solve the problem that the transmission mechanism is not parallel after the tightness (that is, the center distance) is adjusted.

In order to solve the above technical problems, the utility model provides a belt elastic device for a moving head lamp, the moving head lamp includes a bracket, a lamp rotatably connected to the bracket, and a driving mechanism for driving the lamp to rotate The driving mechanism includes a motor, a driving gear connected to the motor shaft, and a driven gear connected to the driving gear through a belt; it is characterized in that the belt elastic device is installed between the motor and the bracket Between; the belt tensioning device includes a fixed plate and an adjustment plate; the motor is fixedly mounted on the fixed plate; the fixed plate is installed on the adjustment plate, and is adjusted and fixed relatively to the adjustment plate; The adjusting plate is fixedly installed on the bracket.

As a preferred specific implementation of the above technical solution, the fixing plate is provided with a first mounting hole for connecting the motor, a second mounting hole for connecting the adjusting plate, and a second mounting hole for adjusting the motor. The first adjustment hole used for the moving distance between the adjustment plate; correspondingly, the adjustment plate is provided with a third installation hole communicated with the second installation hole, and a second installation hole communicated with the first adjustment hole. An adjustment hole, and a fourth mounting hole for connecting the bracket.

As a preferred specific implementation of the above technical solution, the second installation hole is a long hole; the third installation hole is a threaded hole.

As a preferred specific implementation of the above technical solution, the second installation hole is a threaded hole; the third installation hole is a long hole.

As a preferred specific implementation of the above technical solution, the first adjustment hole is a round hole; the second adjustment hole is a threaded hole.

As a preferred specific implementation of the above technical solution, the first adjustment hole and the second adjustment hole are arranged coaxially, and their axes are arranged perpendicular to the axis of the rotating shaft of the motor.

Compared with the prior art, the belt elastic device of a moving head lamp implementing the utility model has the following beneficial effects:

(1) When adjusting the tightness of the belt, first loosen the screws at the second and third mounting holes slightly, and then tighten the screws at the second and first adjusting holes. While tightening the screws, the motor will Pulled by the screws to move outward, after the belt is adjusted to an appropriate degree of tightness, tighten the screws at the second mounting hole and the third mounting hole. It can be seen that the utility model utilizes the pulling force when the screw is tightened, so that the fixed plate moves on the adjusting plate with the motor, so as to achieve the effect of adjustable belt tightness, and the tightness adjustment is convenient and quick.

(2) During the moving process of the fixed plate with the motor, the long hole can be used as the moving guide rail of the fixed plate. When adjusting the center distance between the driving gear and the driven gear, the positioning of the driving gear is accurate, so that the driving gear and the driven gear Always in a parallel state, so as not to affect the stability of the belt drive.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings of the embodiments will be briefly introduced below.

Fig. 1 is an exploded view of an embodiment of a belt elastic device of a moving head light of the present invention;

Fig. 2 is an assembly view of the embodiment of Fig. 1 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1, a belt tensioning device for a moving head light of the present invention, the moving head light includes a bracket, a lamp rotatably connected to the bracket, and a driving mechanism for driving the lamp to rotate; The driving mechanism includes a motor 1, a driving gear 2 connected to the rotating shaft of the motor 1, a driven gear 3 connected to the driving gear 2 through a belt 4; the belt elastic device is installed between the motor 1 and Between the brackets; the belt tensioning device includes a fixed plate 5 and an adjusting plate 6; the motor 1 is fixedly mounted on the fixed plate 5; the fixed plate 5 is installed on the adjusting plate 6, and opposite to the The adjusting plate 6 is movably adjusted and fixed; the adjusting plate 6 is fixedly mounted on the bracket. Specifically, the fixed plate 5 is provided with a first mounting hole 51 for connecting the motor 1, a second mounting hole 52 for connecting the adjusting plate 6, and for adjusting its connection with the adjusting plate 6. The first adjustment hole 53 used for moving distance between the plates 6; correspondingly, the adjustment plate 6 is provided with the third installation hole 61 communicated with the second installation hole 52, and the third installation hole 61 communicated with the first adjustment hole 53 The second adjustment hole 62 and the fourth installation hole 63 for connecting the bracket. The second mounting hole 52 is a long hole; the third mounting hole 61 is a threaded hole. The first adjustment hole 53 is a threaded hole; the second adjustment hole 62 is a round hole. The first adjusting hole 53 and the second adjusting hole 62 are arranged coaxially, and their axes are arranged perpendicularly to the axis of the rotating shaft of the motor 1 .

When the device is installed, after the motor 1 is installed and fixed on the fixed plate 5, first use the screw 71 to pass through the second mounting hole 52 and the third mounting hole 61 and screw it on slightly loosely to connect the fixed plate 5 and the adjusting plate 6 Together, at this moment, the fixed plate 5 can move on the adjusting plate 6, and then utilize the screw 72 to pass through the second adjusting hole 62 and the first adjusting hole 53 to be screwed on slightly tightly, and when the screw 72 is slowly tightened, the motor 1 It will be pulled and moved outward by the screw 72. After the belt 4 is adjusted to an appropriate degree of tightness, the screws 71 at the second mounting hole 52 and the third mounting hole 61 are tightened and fixed. Of course, according to the actual situation, the second mounting hole can also be designed as a threaded hole, and the third mounting hole can be designed as a long hole. Loosely screw it on, and connect the fixing plate 5 and the adjusting plate 6 together, and the rest of the steps are the same as above, and will not be repeated here.

When it is necessary to adjust the tightness of the belt 4 after the belt 4 has been used for a period of time, first the screws 71 at the second mounting hole 52 and the third mounting hole 61 are slightly loosened, and then the second adjusting hole 62 and the first adjusting hole 53 are loosened. The screw 72 is tightened. When the screw 72 is tightened, the motor 1 will be pulled by the screw 72 and move outward. Tighten to secure.

It should also be noted that during the moving process of the fixed plate 5 with the motor 1, the elongated hole can be used as a moving guide rail for the fixed plate 5, and when the center distance between the driving gear 2 and the driven gear 3 is adjusted, the driving gear 2 guides and positions Accurate, so that the driving gear 2 and the driven gear 3 are always in a parallel state, so that the stability of the belt drive will not be affected.

In summary, the implementation of the utility model can not only facilitate the adjustment of the tightness of the belt, but also solve the problem that the transmission mechanism is not parallel after the tightness (that is, the center distance) is adjusted.

The above disclosures are only preferred embodiments of the present utility model, and of course the scope of rights of the present utility model cannot be limited with this. Therefore, equivalent changes made according to the patent scope of the utility model are still covered by the utility model. scope.

Claims (6)

1. a belt tension device for Adjustable head lamp, described Adjustable head lamp comprising support, being rotatably connected to the light fixture on described support and the driving mechanism for driving light fixture to rotate; Described driving mechanism comprises motor, the driving gear be connected with the rotating shaft of described motor, the driven gear that is in transmission connection by belt and described driving gear; It is characterized in that, described belt tension device is arranged between described motor and support; Described belt tension device comprises fixed plate and regulator plate; Described motor is fixedly mounted on described fixed plate; Described fixed plate is arranged on described regulator plate, and relatively described regulator plate regulates movably and fix; Described regulator plate fixed installation on the bracket.

2. the belt tension device of a kind of Adjustable head lamp as claimed in claim 1, it is characterized in that, described fixed plate be provided with in connect described motor the first mounting hole, in connecting the second mounting hole of described regulator plate and the first adjustment hole for displacement distance between adjustment itself and described regulator plate; Correspondingly, described regulator plate is provided with the 3rd mounting hole communicated with described second mounting hole, the second adjustment hole communicated with described first adjustment hole and in the 4th mounting hole being connected described support.

3. the belt tension device of a kind of Adjustable head lamp as claimed in claim 2, is characterized in that, described second mounting hole is strip hole; Described 3rd mounting hole is tapped hole.

4. the belt tension device of a kind of Adjustable head lamp as claimed in claim 2, is characterized in that, described second mounting hole is tapped hole; Described 3rd mounting hole is strip hole.

5. the belt tension device of a kind of Adjustable head lamp as described in claim 3 or 4, is characterized in that, described first adjustment hole is circular hole; Described second adjustment hole is tapped hole.

6. the belt tension device of a kind of Adjustable head lamp as claimed in claim 5, is characterized in that, described first adjustment hole and the second adjustment hole are coaxial setting, the orthogonal thereto setting of shaft axis of its axis and described motor.