Worm and gear testing device for electric actuating mechanism

Abstract

The utility model relates to a worm and gear testing device for an electric actuating mechanism, which belongs to the technical field of transmission testing tools and comprises a bottom plate, a motor is arranged on the bottom plate and mounted on a motor mounting plate, and the motor mounting plate is vertically mounted on the bottom plate. A left worm wheel base and a right worm wheel base are fixed to the bottom plate through bolts, worm wheel shafts are installed on the worm wheel bases, and a pair of bearing seats is arranged between the worm wheel bases. The motor is connected with a driving wheel, and the driving wheel is connected with a driven wheel through a driving belt; an adjusting supporting plate is fixed to one side of the bottom plate, an adjusting wheel is installed on the adjusting supporting plate, and the adjusting wheel is located over the driving belt. According to the utility model, worm wheels and worms with different center distances can be tested, the testing device is open, the installation of the worm wheels and worms is facilitated, the tension of the driving belt can be adjusted, and the conditions of belt falling and locking in the testing process are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission testing tooling, in particular to a worm gear testing device. Background Art

[0002] After the electric actuator is produced, the worm gear needs to be tested. Therefore, a test fixture is needed to detect the matching degree of the worm gear. The traditional testing method is to install the worm gear into the housing of the electric actuator and start the test. The detection process is complicated and inconvenient, so it is necessary to provide an open worm gear detection device.

[0003] There are many tools for testing worm gears on the market. One method for testing the matching degree of worm gears is to fix the worm gears with a fixture so that the worm gear reducer is directly below the test equipment. The test equipment then drives the shaft of the worm gear reducer to rotate, thereby rotating the worm wheel and worm, and then the parameters of the two are detected by sensors. However, if the transmission mechanism of the motor is too tight, it may lock, and if it is too loose, the motor control accuracy will decrease, affecting the test of the worm gear.

[0004] Based on this, the utility model designs a worm gear testing device for an electric actuator. Utility Model Content

[0005] The utility model aims to provide a worm gear testing device for an electric actuator, so as to solve the problems in the prior art of inconvenient worm gear detection and reduced motor control accuracy affecting the test.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] A worm gear testing device for an electric actuator comprises a base plate, wherein a motor is provided on the base plate, wherein the motor is mounted on a motor mounting plate, and wherein the motor mounting plate is vertically mounted on the base plate; wherein two left and right worm gear bases are fixed to the base plate by bolts, wherein a worm gear shaft is mounted on the worm gear bases, and wherein a pair of bearing seats are arranged between the worm gear bases; wherein the motor is connected to a driving wheel, wherein the driving wheel is connected to a driven wheel via a driving belt; wherein an adjusting support plate is fixed to one side of the base plate, wherein an adjusting wheel is mounted on the adjusting support plate, and wherein the adjusting wheel is located directly above the driving belt.

[0008] The adjusting support plate is vertically provided with an adjusting slot, a fixing shaft is arranged in the adjusting slot, and an adjusting wheel is arranged on the fixing shaft; the fixing shaft is provided with threads, and is fixed to both sides of the adjusting support plate with nuts.

[0009] An oblong hole groove is provided at the lower part of the motor mounting plate, and the motor mounting plate and the oblong hole groove are mounted on the side wall of the bottom plate through bolts.

[0010] A worm wheel is mounted on the worm wheel shaft.

[0011] A worm is installed between the bearing seats, and one end of the worm is connected to the driven wheel.

[0012] The beneficial effects of the utility model are:

[0013] 1. The test device is open and can test worm gears with different center distances, which is convenient for the installation of worm gears;

[0014] 2. The tension of the drive belt can be adjusted to prevent the drive belt from loosening and locking during the test, thereby avoiding affecting the motor control accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a front view of the utility model.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Base plate; 2. Motor; 3. Motor mounting plate; 4. Worm gear base; 5. Worm gear shaft; 6. Bearing seat; 7. Worm; 8. Driving wheel; 9. Driving belt; 10. Driven wheel; 11. Adjusting support plate; 12. Adjusting wheel; 14. Adjusting slot; 15. Fixed shaft; 16. Nut; 17 Oblong hole slot; 18. Worm gear; 19. Bolt. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be understood that the terms "upper", "middle", "outer", "inner", "lower" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, and therefore cannot be understood as limiting the present invention.

[0021] The accompanying drawings are specific embodiments of the present utility model. Figure 1-Figure 2As shown, the utility model is a worm gear test device for an electric actuator, comprising an open base plate 1, which is convenient for the installation of the worm gear, and a motor 2 is arranged on the base plate 1, and the motor 2 is mounted on a motor mounting plate 3, and the motor 2 is connected to a driving wheel 8, and the driving wheel 8 is connected to a driven wheel 10 through a driving belt 9. The motor mounting plate 3 is vertically mounted on the base plate 1, and an oblong hole groove 17 is provided at the lower part of the motor mounting plate 3. The motor mounting plate 3 and the oblong hole groove 17 are mounted on the side wall of the base plate 1 through bolts 19, and the position of the motor 2 can be fine-tuned left and right by adjusting the position of the bolts 19.

[0022] Two left and right worm gear bases 4 are fixed to the bottom plate 1 by bolts, and a worm gear shaft 5 is installed on the worm gear base 4, and the worm gear shaft 5 is used to install a worm gear 18. A pair of bearing seats 6 are arranged between the worm gear bases 4, and a worm 7 is installed between the bearing seats 6, the worm 7 is meshed with the worm gear 18, and one end of the worm 7 is connected to the driven wheel 10.

[0023] One side of the bottom plate 1 is fixed with an adjustment support plate 11 by bolts, and an adjustment slot 14 is vertically provided on the adjustment support plate 11, and a fixed shaft 15 is provided in the adjustment slot 14, and an adjustment wheel 12 is provided on the fixed shaft 15, and the adjustment wheel 12 is located just above the driving belt 9, and is used to adjust the tension of the driving belt 9. Both ends of the fixed shaft 15 are provided with threads, and the nuts 16 are used to fix it on both sides of the adjustment support plate 11.

[0024] The utility model is an open test fixture, which can test two sets of worm gears with different center distances, and replace worm gears 7 of different sizes by replacing the bearing seat 6. When the adjusting wheel 12 is pressed downward, the driving belt 9 is tightened to avoid locking. When the adjusting wheel 12 is lifted upward, the driving belt 9 is loosened to avoid the motor motion control accuracy from decreasing and affecting the test of the worm gear.

[0025] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to specific implementation methods.

Claims

1. A worm gear testing device for an electric actuator, comprising a base plate (1), on which a motor (2) is arranged, characterized in that: The motor (2) is mounted on a motor mounting plate (3), and the motor mounting plate (3) is vertically mounted on a base plate (1); two left and right worm gear bases (4) are fixed to the base plate (1) by bolts, a worm gear shaft (5) is mounted on the worm gear base (4), and a pair of bearing seats (6) are arranged between the worm gear bases (4); the motor (2) is connected to a driving wheel (8), and the driving wheel (8) is connected to a driven wheel (10) via a driving belt (9); an adjusting support plate (11) is fixed to one side of the base plate (1), an adjusting wheel (12) is mounted on the adjusting support plate (11), and the adjusting wheel (12) is located directly above the driving belt (9).

2. The worm gear testing device for electric actuator according to claim 1, characterized in that: An adjustment slot (14) is vertically provided on the adjustment support plate (11), a fixed shaft (15) is provided in the adjustment slot (14), and an adjustment wheel (12) is provided on the fixed shaft (15); the fixed shaft (15) is provided with threads and is fixed to two sides of the adjustment support plate (11) by means of nuts (16).

3. The worm gear testing device for electric actuator according to claim 1, characterized in that: An oblong hole groove (17) is provided at the lower portion of the motor mounting plate (3), and the motor mounting plate (3) and the oblong hole groove (17) are mounted on the side wall of the base plate (1) via bolts (19).

4. The worm gear testing device for electric actuator according to claim 1, characterized in that: A worm wheel (18) is mounted on the worm wheel shaft (5).

5. The worm gear testing device for electric actuator according to claim 1, characterized in that: A worm (7) is installed between the bearing seats (6), and one end of the worm (7) is connected to a driven wheel (10).

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