Tool for testing vertical thrust of motor

Abstract

The utility model discloses a motor vertical thrust test tool, which comprises a test seat, a guide rail is arranged in the first direction of the test seat, a load platform is arranged on the guide rail, and the position of the load platform on the guide rail is adjustable; a telescopic rod is arranged on the test seat, and the telescopic end of the telescopic rod stretches out and draws back in the first direction of the test seat and is connected with the load platform; a mounting table is arranged at the top of the test seat, a rotating lead screw parallel to the first direction of the test seat is arranged on the load platform, the rotating lead screw penetrates through the load platform and is in threaded connection with the load platform, and one end of the rotating lead screw extends to the position close to the mounting table; a pressure sensor is arranged at the bottom of the testing seat and connected with the other end of the rotating lead screw, a compression spring is arranged between the pressure sensor and the load platform, and one end of the compression spring abuts against the load platform and the pressure sensor. According to the utility model, the structure complexity and the manufacturing cost of the test tool can be reduced, and the application range of the tool and the test accuracy of the vertical thrust of the motor are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor testing, in particular to a motor vertical thrust testing tool. Background Art

[0002] Motor thrust refers to the thrust that the motor can generate, or simply put, the power output by the motor. The magnitude of motor thrust is related to the motor's power, speed, current and other parameters. With the continuous development and progress of science and technology, motor thrust has been widely used in the propulsion of large-scale transportation vehicles such as ships, aviation, and automobiles, as well as in industrial and civilian fields.

[0003] A common thrust test system uses a drag plate dragged by a ball screw and a motor respectively, and coaxially drags to test thrust fluctuations. This method of connecting the motor through a ball screw inevitably causes the interference of the mechanical connection mechanism to enter the fluctuation detection results, resulting in a considerable deviation from the expected test results. In addition, the structural principle of the ball screw leads to a problem of reduced accuracy due to excessive clearance during use, which further affects the accuracy of the test structure. In addition, the ball screw has a high manufacturing cost due to its precision requirements, and requires an additional braking device, which increases the complexity of the structure.

[0004] Therefore, it is necessary to research and develop a test fixture that can reduce structural complexity and manufacturing costs and improve the accuracy of vertical thrust testing to solve the above technical problems. Summary of the invention

[0005] The utility model aims to provide a motor vertical thrust test fixture, which can reduce the structural complexity and manufacturing cost of the test fixture, improve the application scope of the test fixture and the test accuracy of the motor vertical thrust.

[0006] In order to achieve the above purpose, the utility model provides a motor vertical thrust test tool, the specific implementation scheme is as follows:

[0007] A motor vertical thrust test fixture comprises a test seat, a guide rail is provided in a first direction of the test seat, a load platform is provided on the guide rail, and the position of the load platform on the guide rail is adjustable;

[0008] A telescopic rod is provided on the test seat, and a telescopic end of the telescopic rod is telescoped in a first direction of the test seat and is connected to the load platform;

[0009] A mounting platform is provided on the top of the test seat, and a rotating screw rod parallel to a first direction of the test seat is provided on the load platform, the rotating screw rod passes through the load platform and is screwed to the load platform, and one end of the rotating screw rod extends to a position close to the mounting platform;

[0010] A pressure sensor is provided at the bottom of the test seat, and the pressure sensor is connected to the other end of the rotating screw. A compression spring is provided between the pressure sensor and the load platform, and one end of the compression spring abuts against the load platform, and the other end abuts against the pressure sensor.

[0011] The utility model discloses a motor vertical thrust testing tool, compared with the prior art, by arranging a guide rail on the test seat, arranging a load platform movable thereon on the guide rail, arranging a telescopic rod on the test seat to connect with the load platform, arranging a mounting platform on the top of the test seat, arranging a pressure sensor on the bottom, and arranging a compression spring between the load platform and the pressure sensor. In actual use, the motor to be tested is mounted on the mounting platform, and the motor to be tested is connected with a rotating screw rod. When the motor to be tested is in operation, the rotating screw rod is driven to rotate to drive the load platform to displace and squeeze the compression spring on the guide rail, and the compression sensor obtains linear pressure data. In the process of continuously squeezing the compression spring, the reaction force of the compression spring and the load platform are used together as the load of the motor to ensure the linear increase of the load, and the vertical thrust data of the motor is obtained in combination with the displacement distance data of the load platform on the guide rail, thereby reducing the structural complexity and manufacturing cost of the test work and improving the measurement accuracy of the test work. Moreover, since it is arranged on the telescopic rod, the telescopic rod can be used to maintain the force balance of the load platform on the guide rail even if the test tool is used vertically, thereby improving the application scope of the test work.

[0012] In some embodiments, a test area extending in the second direction of the test seat is opened on the test seat, and the guide rail, the mounting seat, the telescopic rod, the load platform, the rotating screw and the pressure sensor are all arranged in the test area.

[0013] In some embodiments, fixing seats are provided at both sides of the guide rail in the test area, the telescopic rod is provided on the fixing seats, and the telescopic rod is at least partially embedded in the fixing seats.

[0014] By arranging a fixing seat on the test seat, and using the fixing seat to arrange the telescopic rod, and at least a part of the telescopic rod is embedded in the fixing seat, the connection stability between the telescopic rod and the test seat is improved.

[0015] In some embodiments, connecting plates are provided on both side walls of the load platform, and each of the connecting plates is connected to the telescopic rod.

[0016] By arranging connecting plates on both side walls of the load platform and utilizing a structure in which each connecting plate is connected to a telescopic rod, the connection stability between the telescopic rod and the load platform is effectively improved.

[0017] In some embodiments, a sliding plate is provided at the bottom of the load platform, a sliding groove is provided at the bottom of the sliding plate, and the sliding groove is sleeved on the guide rail.

[0018] The displacement accuracy and smoothness of the load platform are improved by adopting the sliding groove on the sliding plate to cooperate with the guide rail.

[0019] In some embodiments, a threaded hole is opened on the load platform, the threaded hole passes through the load platform, and the load platform is threadedly connected to the rotating screw through the threaded hole.

[0020] The displacement of the load platform on the guide rail is achieved by adopting a threaded hole in conjunction with a rotating lead screw, thereby improving the displacement stability and accuracy of the load platform.

[0021] In some of the embodiments, a containing cavity is provided in the load platform, and a door body for opening and closing the containing cavity is hingedly connected to the outer wall of the load platform.

[0022] By setting up a accommodating cavity on the load platform and using the door on the outer wall of the load platform to open and close the accommodating cavity, counterweight objects such as weights can be added or removed into the accommodating cavity according to test requirements, thereby adapting to different motor vertical thrust test requirements and improving the applicability of the test tooling.

[0023] In some of the embodiments, a scale is provided on the side wall of the guide rail.

[0024] By providing a scale on the side wall of the guide rail, the displacement data of the load platform can be observed intuitively, improving user experience and convenience of use.

[0025] Based on the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0026] A guide rail is arranged on the test seat, a load platform movable thereon is arranged on the guide rail, a telescopic rod is arranged on the test seat to connect with the load platform, a mounting platform is arranged on the top of the test seat, a pressure sensor is arranged on the bottom, and a compression spring is arranged between the load platform and the pressure sensor. In actual use, the motor to be tested is installed on the mounting platform, and the motor to be tested is connected with a rotating screw rod. When the motor to be tested is in operation, the rotating screw rod is driven to rotate to drive the load platform to displace on the guide rail to squeeze the compression spring, and the compression sensor obtains linear pressure data. In the process of continuously squeezing the compression spring, the reaction force of the compression spring and the load platform are jointly used as the load of the motor to ensure a linear increase in the load, and the vertical thrust data of the motor is obtained in combination with the displacement distance data of the load platform on the guide rail, thereby reducing the structural complexity and manufacturing cost of the test work and improving the measurement accuracy of the test work. In addition, since it is arranged on the telescopic rod, even if the test tooling is used vertically, the telescopic rod can be used to maintain the force balance of the load platform on the guide rail, thereby improving the scope of application of the test work. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a top view schematic diagram of the utility model;

[0028] Figure 2 It is a side view schematic diagram of the utility model;

[0029] Figure 3 This is a schematic diagram of the installation of the motor to be tested of the utility model;

[0030] Figure 4 It is a schematic diagram of the load platform of the utility model.

[0031] Description of reference numerals:

[0032] 100. Test seat; 110. Test area; 120. Guide rail; 200. Pressure sensor; 300. Load platform; 310. Sliding plate; 320. Sliding groove; 330. Threaded hole; 340. Door body; 350. Accommodating cavity; 360. Connecting plate; 400. Rotating screw; 500. Mounting table; 510. Motor to be tested; 600. Fixed seat; 700. Telescopic rod; 800. Compression spring. DETAILED DESCRIPTION

[0033] In order to facilitate the understanding of the present invention, the specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0034] Unless otherwise specified or defined, the "first, second..." used in this article is merely used to distinguish names and does not represent a specific quantity or order.

[0035] Unless specifically stated or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] It should be noted that, in this document, “fixed to” or “connected to” may mean directly fixing or connecting to an element, or indirectly fixing or connecting to an element.

[0037] like Figure 1-4 As shown, a motor vertical thrust test fixture provided in this embodiment includes a test seat 100, a guide rail 120 is provided in a first direction of the test seat 100, a load platform 300 is provided on the guide rail 120, and the position of the load platform 300 on the guide rail 120 is adjustable;

[0038] A telescopic rod 700 is provided on the test seat 100, and a telescopic end of the telescopic rod 700 is telescoped in a first direction of the test seat 100 and connected to the load platform 300;

[0039] A mounting platform 500 is provided on the top of the test seat 100, and a rotating screw 400 parallel to the first direction of the test seat 100 is provided on the load platform 300, the rotating screw 400 passes through the load platform 300 and is screwed with the load platform 300, and one end of the rotating screw 400 extends to a position close to the mounting platform 500;

[0040] A pressure sensor 200 is provided at the bottom of the test seat 100, and the pressure sensor 200 is connected to the other end of the rotating screw 400. A compression spring 800 is provided between the pressure sensor 200 and the load platform 300, and one end of the compression spring 800 abuts against the load platform 300, and the other end abuts against the pressure sensor 200.

[0041] In some of the embodiments, a test area 110 extending in a second direction of the test seat 100 is opened on the test seat 100, and the guide rail 120, the mounting seat, the telescopic rod 700, the load platform 300, the rotating screw 400 and the pressure sensor 200 are all arranged in the test area 110.

[0042] In some embodiments, a fixing seat 600 is provided on both sides of the guide rail 120 in the test area 110 , and the telescopic rod 700 is provided on the fixing seat 600 , and the telescopic rod 700 is at least partially embedded in the fixing seat 600 .

[0043] By arranging the fixing seat 600 on the test seat 100 and arranging the telescopic rod 700 by using the fixing seat 600, and at least partially embedding the telescopic rod 700 into the fixing seat 600, the connection stability between the telescopic rod 700 and the test seat 100 is improved.

[0044] In some of the embodiments, connecting plates 360 are provided on both side walls of the load platform 300 , and each of the connecting plates 360 is connected to the telescopic rod 700 .

[0045] By arranging the connecting plates 360 on both side walls of the load platform 300 and utilizing the structure in which each connecting plate 360 ​​is connected to a telescopic rod 700 , the connection stability between the telescopic rod 700 and the load platform 300 is effectively improved.

[0046] In some embodiments, a sliding plate 310 is provided at the bottom of the load platform 300 , a sliding groove 320 is formed at the bottom of the sliding plate 310 , and the sliding groove 320 is sleeved on the guide rail 120 .

[0047] By adopting the method of the sliding groove 320 on the sliding plate 310 cooperating with the guide rail 120, the displacement accuracy and smoothness of the load platform 300 are improved.

[0048] In some embodiments, a threaded hole 330 is opened on the load platform 300 , and the threaded hole 330 passes through the load platform 300 . The load platform 300 is threadedly connected to the rotating screw 400 through the threaded hole 330 .

[0049] The threaded hole 330 is used in conjunction with the rotating screw rod 400 to achieve displacement of the load platform 300 on the guide rail 120 , thereby improving the displacement stability and accuracy of the load platform 300 .

[0050] In some of the embodiments, a receiving cavity 350 is provided in the load platform 300 , and a door 340 for opening and closing the receiving cavity 350 is hinged on the outer wall of the load platform 300 .

[0051] By setting a accommodating chamber 350 on the load platform 300 and using the door body 340 on the outer wall of the load platform 300 to open and close the accommodating chamber 350, counterweight objects such as weights can be added or removed into the accommodating chamber 350 according to test requirements, thereby adapting to different motor vertical thrust test requirements and improving the applicability of the test tooling.

[0052] In some embodiments, a scale is provided on the side wall of the guide rail 120 .

[0053] By providing a scale on the side wall of the guide rail 120, the displacement data of the load platform 300 can be observed intuitively, thereby improving user experience and convenience of use.

[0054] Compared with the prior art, a motor vertical thrust test fixture provided in this embodiment is provided by setting a guide rail 120 on a test seat 100, setting a load platform 300 movable thereon on the guide rail 120, setting a telescopic rod 700 on the test seat 100 to connect with the load platform 300, setting a mounting table 500 on the top of the test seat 100, setting a pressure sensor 200 on the bottom, and setting a compression spring 800 between the load platform 300 and the pressure sensor 200. In actual use, the motor 510 to be tested is installed on the mounting table 500, and the motor 510 to be tested is connected to the rotating screw 400. When the motor 510 to be tested is in operation, the rotating screw 400 is driven to rotate to drive the load platform 300 is displaced on the guide rail 120 to squeeze the compression spring 800, and the compression sensor obtains linear pressure data. In the process of continuously squeezing the compression spring 800, the reaction force of the compression spring 800 and the load platform 300 are used together as the load of the motor to ensure the linear increase of the load, and the vertical thrust data of the motor is obtained in conjunction with the displacement distance data of the load platform 300 on the guide rail 120, thereby reducing the structural complexity and manufacturing cost of the test work and improving the measurement accuracy of the test work. In addition, since it is arranged on the telescopic rod 700, even if the test tooling is used vertically, the telescopic rod 700 can be used to maintain the force balance of the load platform 300 on the guide rail 120, thereby improving the scope of application of the test work.

[0055] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs 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 description and do not constitute any limitation to the utility model.

Claims

1. A motor vertical thrust test tool, characterized in that: It comprises a test seat (100), a guide rail (120) is provided in a first direction of the test seat (100), a load platform (300) is provided on the guide rail (120), and the position of the load platform (300) on the guide rail (120) is adjustable; A telescopic rod (700) is provided on the test seat (100), and a telescopic end of the telescopic rod (700) is telescopic in a first direction of the test seat (100) and is connected to the load platform (300); A mounting platform (500) is provided on the top of the test seat (100), and a rotating screw (400) parallel to a first direction of the test seat (100) is provided on the load platform (300), the rotating screw (400) passes through the load platform (300) and is screwed to the load platform (300), and one end of the rotating screw (400) extends to a position close to the mounting platform (500); A pressure sensor (200) is provided at the bottom of the test seat (100), the pressure sensor (200) is connected to the other end of the rotating screw (400), a compression spring (800) is provided between the pressure sensor (200) and the load platform (300), one end of the compression spring (800) is in contact with the load platform (300), and the other end is in contact with the pressure sensor (200).

2. The motor vertical thrust test fixture according to claim 1, characterized in that: A test area (110) extending in a second direction of the test seat (100) is provided on the test seat (100); the guide rail (120), the mounting seat, the telescopic rod (700), the load platform (300), the rotating screw (400) and the pressure sensor (200) are all arranged in the test area (110).

3. The motor vertical thrust test fixture as claimed in claim 2, characterized in that: Fixed seats (600) are provided at positions on both sides of the guide rail (120) in the test area (110), the telescopic rod (700) is provided on the fixed seat (600), and the telescopic rod (700) is at least partially embedded in the fixed seat (600).

4. The motor vertical thrust test fixture according to any one of claims 1 to 3, characterized in that: Connecting plates (360) are provided on both side walls of the load platform (300), and each of the connecting plates (360) is connected to the telescopic rod (700).

5. The motor vertical thrust test fixture according to any one of claims 1 to 3, characterized in that: A sliding plate (310) is provided at the bottom of the load platform (300), a sliding groove (320) is provided at the bottom of the sliding plate (310), and the sliding groove (320) is sleeved on the guide rail (120).

6. The motor vertical thrust test fixture as claimed in claim 5, characterized in that: A threaded hole (330) is provided on the load platform (300), the threaded hole (330) passes through the load platform (300), and the load platform (300) is threadedly connected to the rotating screw rod (400) through the threaded hole (330).

7. The motor vertical thrust test fixture according to any one of claims 1 to 3, characterized in that: A containing cavity (350) is provided in the load platform (300), and a door body (340) for opening and closing the containing cavity (350) is hingedly connected to the outer wall of the load platform (300).

8. The motor vertical thrust test fixture according to any one of claims 1 to 3, characterized in that: A scale is provided on the side wall of the guide rail (120).

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