A test bench adjustable multi-angle stall tooling

Abstract

This utility model discloses an adjustable multi-angle stall tooling for a test bench, comprising: a bearing housing, a connecting shaft rotatably fitted within the bearing housing, a stall plate connected to the bearing housing, and an adjustment assembly for adjusting the circumferential angle of the stall plate on the bearing housing; multiple angle positioning holes are provided on the outer surface of the connecting shaft, and a stall pin is provided on the stall plate; the stall plate is connected to the angle positioning holes on the connecting shaft through the stall pin, thereby fixing the position of the connecting shaft; through the above method, this utility model can quickly and efficiently make precise adjustments to the stall angle.

Description

Technical Field

[0001] This utility model relates to the technical field of motor performance testing devices, and in particular to an adjustable multi-angle stall tooling for a test bench. Background Technology

[0002] In the field of motor performance testing, the locked-rotor test is a core method for evaluating key indicators such as the motor's ultimate torque, overload capacity, and temperature rise. This test requires forcibly locking the motor rotor to a stationary state (i.e., 0 revolutions per minute) to simulate extreme load conditions. This simulates the phenomenon where the motor fails to start or stop due to excessive load, mechanical failure of the driven components, or bearing damage. When a motor is locked, its power factor is extremely low, and the current can reach up to seven times the rated current; prolonged locked-rotor operation can burn out the motor. Therefore, the locked-rotor test is a standard part of motor testing.

[0003] Traditional stall tests typically use fixed stall fixtures where all components are permanently installed. When changing the stall or when multiple stall angles are required, the stall fixtures must be changed repeatedly for installation and alignment, resulting in low efficiency and low installation accuracy. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide an adjustable multi-angle stall tooling for a test bench, which can quickly and efficiently make precise adjustments to the stall angle.

[0005] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: an adjustable multi-angle stall tooling for a test bench is provided, comprising: a bearing housing, a connecting shaft rotatably fitted in the bearing housing, a stall plate connected to the bearing housing, and an adjustment component for adjusting the circumferential angle of the stall plate in the bearing housing is provided on the bearing housing. Multiple angle positioning holes are provided on the outer surface of the connecting shaft, and a locking pin is provided on the locking plate. The locking plate is connected to the angle positioning holes on the connecting shaft through the locking pin, thereby fixing the position of the connecting shaft.

[0006] Preferably, the stall plate has an arc-shaped elongated hole, through which the first bolt passes and is fastened to the bearing housing; when the first bolt is loosened, the stall plate can rotate circumferentially around the rotation center axis of the connecting shaft under the cooperation of the first bolt and the arc-shaped elongated hole and the action of the adjusting component.

[0007] Preferably, the adjustment assembly includes an adjustment block and an adjustment screw. The adjustment block is fixedly connected to the bearing housing, and the adjustment screw is threadedly connected to the adjustment block. At least two adjustment screws are provided and distributed at both ends of the adjustment seat. The stall plate extends toward the adjustment block with an extension block, and the adjustment screw is arranged on both sides of the extension block and abuts against the extension block.

[0008] Preferably, a groove is provided at one end of the bearing housing near the stall plate, and a sliding protrusion extends from the side of the stall plate near the bearing housing, with the sliding protrusion slidingly engaging with the groove.

[0009] The beneficial effects of this utility model are: the circumferential adjustment of the stall plate is achieved by the sliding cooperation between the arc-shaped elongated hole and the first bolt, combined with the bidirectional tightening and fine adjustment of the extension block by the adjusting screw, and the triple synergy of the guide structure of the slide groove and the sliding protrusion, which significantly improves the adjustment efficiency and positioning accuracy of the multi-angle stall. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model after removing the stall plate; Figure 3 This is a structural schematic diagram of the stall plate of this utility model from another perspective.

[0011] The components in the attached diagram are labeled as follows: 1. Bearing housing; 11. Slide groove; 2. Connecting shaft; 21. Angle positioning hole; 3. Stator plate; 31. Arc-shaped elongated hole; 32. First bolt; 33. Extension block; 34. Sliding protrusion; 35. Stator pin; 41. Adjusting block; 42. Adjusting screw. Detailed Implementation

[0012] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0013] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0014] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0015] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0016] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0017] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0018] Unless otherwise specified, physical quantities in formulas should be understood as basic quantities of SI base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0019] Example: refer to Figure 1 and Figure 2An adjustable multi-angle stall tooling for a test bench includes: a bearing housing 1, a connecting shaft 2 rotatably fitted in the bearing housing 1, one end of the connecting shaft 2 being connectable to the motor to be tested. A stall plate 3 is connected to the bearing housing 1 by a first bolt 32, thereby fixing the position of the stall plate 3 on the bearing housing 1. An adjustment assembly for adjusting the circumferential angle of the stall plate 3 on the bearing housing 1 is installed on the bearing housing 1. Multiple angle positioning holes 21 are provided on the outer side of the connecting shaft 2, and a blocking pin 35 is inserted into the blocking plate 3. The blocking plate 3 is connected to the angle positioning holes 21 on the connecting shaft 2 through the blocking pin 35, thereby fixing the position of the connecting shaft 2.

[0020] refer to Figure 1 and Figure 2 By creating multiple angle positioning holes 21 at different angles, various stall angle requirements can be accommodated. Simply rotate the angle positioning hole 21 at the corresponding angle position until the stall pin 35 can be inserted. To ensure a more stable connection between the stall pin 35 and the connecting shaft 2, a thread can be created at the end of the stall pin 35, allowing for a threaded connection with the angle positioning hole 21. The angle positioning hole 21 can be understood as a preliminary positioning or adjustment of the stall angle.

[0021] refer to Figures 1-3 To facilitate further adjustment of the position of the stall plate 3, an arc-shaped elongated hole 31 is provided on the stall plate 3. The arc-shaped elongated hole 31 is arranged along the circumferential direction of the connecting shaft 2. The first bolt 32 passes through the arc-shaped elongated hole 31 and is fastened to the bearing housing 1. When the first bolt 32 is loosened, the stall plate 3 can rotate circumferentially around the rotation center axis of the connecting shaft 2 under the cooperation of the first bolt 32 and the arc-shaped elongated hole 31 and the action of the adjustment component, thereby providing the basic conditions for fine adjustment of the stall plate 3. The adjustment assembly includes an adjustment block 41 and an adjustment screw 42. The adjustment block 41 is fixedly connected to the bearing housing 1, and the adjustment screw 42 is threadedly connected to the adjustment block 41. At least two adjustment screws 42 are installed and distributed on the left and right sides of the adjustment assembly. The stall plate 3 extends toward the adjustment block 41 with an extension block 33. The adjustment screw 42 is arranged on both sides of the extension block 33 and abuts against the extension block 33. By rotating the adjustment screw 42 at the corresponding position, the circumferential angle of the stall plate 3 on the bearing housing 1 can be adjusted, thereby achieving precise positioning or adjustment of the stall angle.

[0022] refer to Figures 1-3 In order to further improve the accuracy and stability of the stall plate 3 during the circumferential displacement of the bearing housing, a groove 11 is provided at one end of the bearing housing 1 near the stall plate 3, and a sliding protrusion 34 extends from the side of the stall plate 3 near the bearing housing 1. The sliding protrusion 34 slides in cooperation with the groove 11, thereby providing guidance and correction for the displacement of the stall plate through the sliding protrusion 34 and the groove 11.

[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A test stand adjustable multi-angle stall tooling, characterized by, include: A bearing housing (1) is provided with a connecting shaft (2) rotatably fitted in the bearing housing (1), a stall plate (3) is connected to the bearing housing (1), and an adjustment assembly for adjusting the circumferential angle of the stall plate (3) on the bearing housing (1) is provided on the bearing housing (1). The connecting shaft (2) has multiple angle positioning holes (21) on its outer side. The stop plate (3) is provided with a stop pin (35). The stop plate (3) is connected to the angle positioning holes (21) on the connecting shaft (2) through the stop pin (35), thereby fixing the position of the connecting shaft (2).

2. The test stand adjustable multi-angle stall fixture of claim 1, wherein: The stall plate (3) has an arc-shaped elongated hole (31) on it. The first bolt (32) passes through the arc-shaped elongated hole (31) and is fastened to the bearing housing (1). When the first bolt (32) is loosened, the stall plate (3) can rotate circumferentially around the rotation center axis of the connecting shaft (2) under the cooperation of the first bolt (32) and the arc-shaped elongated hole (31) and the action of the adjustment component.

3. The test bench adjustable multi-angle stall tooling of claim 1 or 2, wherein: The adjustment assembly includes an adjustment block (41) and an adjustment screw (42). The adjustment block (41) is fixedly connected to the bearing housing (1). The adjustment screw (42) is threaded onto the adjustment block (41). There are at least two adjustment screws (42) distributed at both ends of the adjustment seat. The stall plate (3) extends toward the adjustment block (41) with an extension block (33). The adjustment screw (42) is arranged on both sides of the extension block (33) and abuts against the extension block (33).

4. The test stand adjustable multi-angle stall fixture of claim 1, wherein: A groove (11) is provided at one end of the bearing housing (1) near the stop plate (3), and a sliding protrusion (34) extends from the side of the stop plate (3) near the bearing housing (1), and the sliding protrusion (34) slides in cooperation with the groove (11).

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