Potentiometer circular motion service life test bench

Abstract

The utility model discloses a potentiometer circular motion life testboard, which comprises a base and a potentiometer, the upper end of the base is fixedly provided with a support frame, the inside of the support frame is rotatably provided with three groups of rotating rods at equal intervals, the outer surface of each rotating rod close to the middle is fixedly connected with a driven wheel, and one side of each driven wheel is fixedly connected with a driven wheel. A connecting groove is formed in the upper end of the rotating rod, a movable plate is slidably connected to the upper end of the connecting groove, limiting plates are movably connected to the two ends of the movable plate, an inserting hole connected with the interior of the connecting groove in a penetrating mode is formed in the side, close to the connecting groove, of the supporting frame, and a rotating shaft of the potentiometer penetrates through the inserting hole. And the connecting rod extends into the connecting groove. According to the utility model, the movable plate is matched with the connecting groove to perform preliminary limiting according to the length of the rotating shaft of the potentiometer, and then the threaded rod is rotated, so that the bottom end thread of the threaded rod penetrates through the movable plate and abuts against the rotating shaft of the potentiometer, thereby limiting the potentiometer.

Description

TECHNICAL FIELD

[0001] The utility model relates to potentiometre life test technical field, concretely is a kind of potentiometre circular motion life test bench. BACKGROUND

[0002] Potentiometer is with three lead-out end, resistance value can be adjusted according to certain change rule Resistance element.Potentiometer is usually composed of resistance body and movable brush.When brush moves along resistance body, resistance value or voltage in output end is obtained with displacement amount certain relationship, potentiometer can be used as three-terminal element also can be used as two-terminal element.The latter can be regarded as a variable resistor, since its role in circuit is to obtain output voltage with input voltage (applied voltage) certain relationship, it is called potentiometer.Potentiometer is produced, usually potentiometer circular motion is tested for life.

[0003] However, some potentiometer circular motion life test bench, when potentiometer is fixed, because the length of potentiometer's rotating shaft is different, thereby it is inconvenient to install test;Therefore, it does not meet the existing demand, for this we propose a kind of potentiometer circular motion life test bench. INVENTION CONTENTS

[0004] The utility model discloses a kind of potentiometer circular motion life test bench, to solve the problem that potentiometer circular motion life test bench is fixed in the potentiometer in the background technology mentioned above, because the length of potentiometer's rotating shaft is different, thereby it is inconvenient to install test.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of potentiometer circular motion life test bench, including base and potentiometer, the upper end of the base is fixed with support frame, the inside of the support frame is rotationally equipped with three groups of rotating rods, the outer surface of each rotating rod near middle is all fixedly connected with driven wheel, the side of the driven wheel, and located the upper end of rotating rod is equipped with connecting slot, the upper end of the connecting slot is slidably connected with movable plate, the both ends of the movable plate are all movably connected with limit plate, the side of the support frame near connecting slot is equipped with with the insertion hole being connected with the inside of connecting slot, the rotating shaft of the potentiometer passes through insertion hole, and extend to the inside of connecting slot.

[0006] Preferably, the upper end of the movable plate is equipped with movable slot on both sides, the inside of both sides movable slot is all fixedly connected with fixed rod, the outer surface of both sides fixed rod is slidably connected with sliding plate that extends to the upper end of movable plate.

[0007] Preferably, the inner wall between the side of both sides sliding plate and movable slot is fixedly connected with spring, and spring is wound on the outer surface of fixed rod.

[0008] Preferably, the two sides of the sliding plate are fixedly connected with a limiting plate, a plurality of limiting grooves matched with the limiting plate are equidistantly arranged on the inner wall of the connecting groove, and the limiting plate is clamped with the corresponding limiting groove.

[0009] Preferably, a threaded rod is rotationally connected between the two movable grooves and at the upper end of the movable plate through a rotating shaft, one end of the threaded rod is threaded through the movable plate and extends into the connecting groove.

[0010] Preferably, a driving gear is drivenly connected to the upper end of the base and at one side of the support frame through a motor, and a transmission belt is transmissionally connected between the driving gear and the driven wheels.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、The utility model discloses a potentiometer positioner, which comprises a base, a support frame is fixedly connected to the upper end of the base, a connecting groove is formed in the support frame, a movable plate is movably connected in the connecting groove, and a plurality of sliding plates are movably connected to the upper end of the movable plate.

[0013] 2、The utility model discloses a potentiometer positioner, which comprises a base, a support frame is fixedly connected to the upper end of the base, a connecting groove is formed in the support frame, a movable plate is movably connected in the connecting groove, and a plurality of sliding plates are movably connected to the upper end of the movable plate. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structural schematic view of the utility model;

[0015] Figure 2 It is the structural schematic view of the support frame of the utility model;

[0016] Figure 3 It is the overall downward sectional view of the utility model;

[0017] Figure 4 It is the structural schematic view of the utility model Figure 3 A is the structural schematic view of the utility model.

[0018] In the figure: 1, base; 2, potentiometer; 3, support frame; 301, plug hole; 4, motor; 5, driving gear; 6, rotating rod; 601, connecting groove; 602, limiting groove; 7, driven wheel; 8, conveyor belt; 9, movable plate; 901, movable groove; 10, threaded rod; 11, fixed rod; 12, sliding plate; 13, spring; 14, limiting plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0020] Please refer to Figures 1 to 4 The utility model provides an embodiment: a potentiometer circular motion life test board, including base 1 and potentiometer 2, the upper end of base 1 is fixedly provided with support frame 3, the inside of support frame 3 is provided with three groups of rotating rod 6 at equal distance, the outer surface of each rotating rod 6 near the middle is fixedly connected with driven wheel 7, the one side of driven wheel 7 is located the upper end of rotating rod 6 and is provided with connecting groove 601, the upper end of connecting groove 601 is slidably connected with movable plate 9, the both ends of movable plate 9 are movably connected with limiting plate 14, the side of support frame 3 near connecting groove 601 is provided with plug hole 301 connected with the inside of connecting groove 601, the rotating shaft of potentiometer 2 penetrates plug hole 301 and extends to the inside of connecting groove 601.

[0021] The both sides of the upper end of movable plate 9 are provided with movable groove 901, the inside of both sides movable groove 901 is fixedly connected with fixed rod 11, the outer surface of both sides fixed rod 11 is slidably connected with sliding plate 12 extending to the upper end of movable plate 9, the side of both sides sliding plate 12 far from each other is fixedly connected with spring 13 between the inner wall of movable groove 901, and spring 13 is wound on the outer surface of fixed rod 11, the side of both sides sliding plate 12 far from each other is fixedly connected with limiting plate 14, the both sides of the inside of connecting groove 601 are provided with several limiting grooves 602 matched with limiting plate 14 at equal distance, and limiting plate 14 is clamped with corresponding limiting groove 602.

[0022] The rotating shaft of the potentiometer 2 is inserted through the insertion hole 301 and extends to the inside of the connecting groove 601, then the sliding plates 12 on both sides of the upper end of the movable plate 9 are pinched and moved, the sliding plates 12 on both sides are moved along the fixed rod 11 to the side close to each other, and the spring 13 is compressed to generate deformation, thereby driving the limiting plate 14 to move and shrink to the inside of the movable groove 901, then the position of the movable plate 9 is moved forward and backward according to the length of the rotating shaft of the potentiometer 2, when the movable plate 9 is moved to the upper end of the rotating shaft of the potentiometer 2, the pinching of the sliding plates 12 is released, the spring 13 is released from the elastic force, and the limiting plate is moved to the inside of the corresponding limiting groove 602, thereby fixing the movable plate 9, and the movable plate 9 is conveniently connected with the connecting groove 601 to preliminarily limit the length of the rotating shaft of the potentiometer 2.

[0023] The threaded rods 10 are rotatably connected between the two movable grooves 901 and at the upper end of the movable plate 9, one end of the threaded rod 10 is threaded through the movable plate 9 and extends to the inside of the connecting groove 601, then the threaded rod 10 is rotated, the bottom end of the threaded rod 10 is threaded through the movable plate 9 and abuts against the rotating shaft of the potentiometer 2, thereby limiting the potentiometer 2.

[0024] The upper end of the base 1 and one side of the support frame 3 are drivenly connected with the driving gear 5 by the motor 4, the transmission belt 8 is in transmission connection between the driving gear 5 and the driven wheels 7, after the potentiometer 2 is fixed, the motor 4 is started to drive the driving gear 5 to rotate, then the transmission belt 8 is in transmission connection between the driving gear 5 and each driven wheel 7, thereby driving the rotating rod 6 fixed with the potentiometer 2 to rotate, thereby performing the circular motion life test on the potentiometer 2.

[0025] When the potentiometer circumferential motion life test table is used, the rotating shaft of the potentiometer 2 is inserted through the insertion hole 301 and extends to the inside of the connecting groove 601, then the two sides of the sliding plate 12 on the upper end of the movable plate 9 are pinched and moved, the two sides of the sliding plate 12 are slid along the fixed rod 11 to the side close to each other, and the spring 13 is compressed to generate deformation, thereby driving the limiting plate 14 to move and shrink to the inside of the movable groove 901, then the position of the movable plate 9 can be translated forward and backward according to the length of the rotating shaft of the potentiometer 2, when the movable plate 9 moves to the upper end of the rotating shaft of the potentiometer 2, the pinching of the sliding plate 12 is released, the spring 13 is released from the elastic force, and then the limiting plate is moved to the inside of the corresponding limiting groove 602, thereby fixing the movable plate 9, facilitating the movable plate 9 to preliminarily limit the connecting groove 601 according to the length of the rotating shaft of the potentiometer 2, then the threaded rod 10 is rotated, the bottom end of the threaded rod 10 is threaded through the movable plate 9 and abuts against the rotating shaft of the potentiometer 2, thereby limiting the potentiometer 2; after the potentiometer 2 is fixed, the motor 4 is started to drive the driving gear 5 to rotate, then the driving gear 5 and each driven wheel 7 are connected through the transmission belt 8, thereby driving the rotating rod 6 fixed with the potentiometer 2 to rotate, thereby performing circumferential motion life test on the potentiometer 2.

[0026] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalents of the elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A potentiometer circular motion life test bench, comprising a base (1) and a potentiometer (2), characterized in that: The upper end of the base (1) is fixedly provided with a support frame (3), the inside of the support frame (3) is equidistantly and rotatably provided with three groups of rotating rods (6), the outer surface of each rotating rod (6) near the middle is fixedly connected with a driven wheel (7), one side of the driven wheel (7) and located at the upper end of the rotating rod (6) is provided with a connecting groove (601), the upper end of the connecting groove (601) is slidably connected with a movable plate (9), both ends of the movable plate (9) are movably connected with limiting plates (14), one side of the support frame (3) near the connecting groove (601) is provided with a plug hole (301) which is in through connection with the inside of the connecting groove (601), the rotating shaft of the potentiometer (2) penetrates through the plug hole (301) and extends into the inside of the connecting groove (601).

2. The potentiometer circumferential motion life test table according to claim 1, characterized in that: Both sides of the upper end of the movable plate (9) are provided with movable grooves (901), the inside of the movable grooves (901) are fixedly connected with fixed rods (11), the outer surface of the fixed rods (11) are slidably connected with sliding plates (12) which extend through the upper end of the movable plate (9).

3. The potentiometer circumferential motion life test table of claim 2, wherein: The sliding plates (12) are fixedly connected with springs (13) between the inner wall of the movable grooves (901) and the side close to each other, and the springs (13) are wound on the outer surface of the fixed rods (11).

4. The potentiometer circumferential motion life test table of claim 2, wherein: The sliding plates (12) are fixedly connected with limiting plates (14) on the side away from each other, the inside walls of the connecting grooves (601) are equidistantly provided with a plurality of limiting grooves (602) matched with the limiting plates (14), and the limiting plates (14) are clamped with the corresponding limiting grooves (602).

5. The potentiometer circumferential motion life test bench of claim 2, wherein: Between the movable grooves (901) and located at the upper end of the movable plate (9), the screw rods (10) are rotatably connected through rotating shafts, one end of the screw rod (10) is screwed through the movable plate (9) and extends into the inside of the connecting groove (601).

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