Novel motor torque test fixture

Abstract

The utility model discloses a novel motor torque test fixture, which comprises a fixture base, a torsion meter and a fixture gear, the fixture base is provided with a motor placing hole and a rotating shaft mounting hole, a vertically arranged force output rotating shaft is rotatably mounted in the rotating shaft mounting hole through a bearing, and the upper end part of the force output rotating shaft extends to the upper end side of the fixture base; a base inner threaded hole is formed in the upper surface of the jig base and located beside an opening in the upper end of the motor containing hole. The jig gear rotation stopping sleeve is arranged at the upper end part of the output rotating shaft; when the novel motor torque testing jig is used for testing the torque of a testing motor, the testing motor is placed in the motor placing hole, a casing of the testing motor is fastened on the jig base through a locking screw which is in threaded connection with the inner threaded hole of the base, and an output gear of the testing motor is meshed with the jig gear. Through the structural design, the torque measuring device has the advantage of novel structural design, and can be effectively suitable for torque measurement of the gear output motor.

Description

Technical Field

[0001] This utility model relates to the field of testing fixtures and devices, and in particular to a novel motor torque testing fixture. Background Technology

[0002] Chinese utility model patent with patent number ZL201922193790.0 and patent name: "A Torque Testing Device for an External Rotor Motor" essentially discloses a motor torque testing fixture. Specifically, the external rotor motor torque testing device discloses the following technical solution: An external rotor motor torque testing device includes a support base and a cylinder. The support base includes a base plate and a vertical plate disposed on the base plate. The vertical plate is provided with mounting holes for fixing the external rotor motor. The bottom of the cylinder has a connecting shaft extending outward along the axial direction. The cylinder can be sleeved and fixed on the external rotor of the external rotor motor. In use, the external rotor motor is installed on the vertical plate, the cylinder is fixed on the external rotor, and the external rotor drives the connecting shaft on the cylinder to rotate. When measuring torque, it is only necessary to connect the connecting shaft to a torque meter as in a traditional motor to realize the measurement of torque.

[0003] It should be noted that the above-mentioned external rotor motor torque testing device still has the following defects: it cannot be effectively applied to the torque measurement of gear output motors. Utility Model Content

[0004] The purpose of this utility model is to provide a new type of motor torque testing fixture to address the shortcomings of existing technologies. This new type of motor torque testing fixture has a novel structural design and can be effectively applied to the torque measurement of gear output motors.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0006] A novel motor torque testing fixture includes a fixture base and a torque meter;

[0007] The fixture base has an upward-facing motor mounting hole and a shaft mounting hole. A vertically arranged output shaft is rotatably mounted in the shaft mounting hole via a bearing. The upper end of the output shaft extends to the upper side of the fixture base.

[0008] The upper surface of the fixture base has an internal threaded hole on the side of the opening at the upper end of the motor mounting hole;

[0009] The new type of motor torque testing fixture also includes a fixture gear, which is anti-rotationally mounted on the upper end of the output shaft;

[0010] When the new type of motor torque testing fixture performs torque testing on the test motor, the test motor is placed in the motor placement hole, and the housing of the test motor is fastened to the fixture base by a locking screw that is screwed into the threaded hole of the base. The output gear of the test motor meshes with the gear of the fixture.

[0011] The upper end of the output shaft is provided with a shaft shoulder and a flat shaft portion located on the upper side of the shaft shoulder and having a flat shape.

[0012] The central hole of the fixture gear is flat, and the central hole of the fixture gear is fitted into the flat part of the output shaft, with the lower surface of the fixture gear abutting against the shoulder of the shaft.

[0013] The upper surface of the fixture gear is provided with a connecting sleeve, the connecting sleeve and the fixture gear are an integral structure, and the central hole of the fixture gear penetrates the core of the connecting sleeve.

[0014] The side wall of the connecting sleeve has an outwardly opening gear internal thread hole that communicates with the center hole of the fixture gear;

[0015] The torque meter's test connection end is provided with a sleeve part, which is fitted around the connecting sleeve of the fixture gear. The sleeve part of the torque meter has screw holes.

[0016] The new motor torque testing fixture also includes a locking screw that passes through the screw hole of the torque meter's housing and is screwed into the internal thread hole of the gear connecting sleeve of the fixture gear.

[0017] The lower end of the output shaft is rotatably mounted in the shaft mounting hole via two bearings arranged at intervals.

[0018] The side wall of the motor placement hole is provided with a clearance notch.

[0019] Compared with existing technologies, this utility model has the following advantages: Specifically, this utility model achieves direct torque measurement of gear-output motors using a transmission structure composed of a jig gear, output shaft, and bearings. In other words, this novel motor torque testing jig is effectively applicable to torque measurement of gear-output motors. Therefore, this novel motor torque testing jig has the advantage of novel structural design and is effectively applicable to torque measurement of gear-output motors. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is an exploded view of the present invention.

[0023] Figure 3 This is a partial cross-sectional schematic diagram of the present invention.

[0024] exist Figures 1 to 3 This includes:

[0025] 1- Fixture base; 11- Motor mounting hole; 12- Shaft mounting hole; 13- Base internal thread hole; 14- Clearance notch; 2- Torque meter; 21- Assembly part; 22- Screw hole; 3- Bearing; 4- Output shaft; 41- Shaft shoulder; 42- Shaft flat part; 5- Fixture gear; 51- Center hole; 52- Connecting sleeve; 53- Gear internal thread hole; 6- Test motor; 61- Housing; 62- Output gear; 7- Locking screw. Detailed Implementation

[0026] The present invention will now be described in conjunction with specific embodiments.

[0027] Example 1, as Figures 1 to 3 As shown, a novel motor torque testing fixture includes a fixture base 1 and a torque meter 2.

[0028] Among them, such as Figures 1 to 3 As shown, the fixture base 1 has an upward-facing motor placement hole 11 and a shaft mounting hole 12. A vertically arranged output shaft 4 is rotatably mounted in the shaft mounting hole 12 via a bearing 3. The upper end of the output shaft 4 extends to the upper side of the fixture base 1.

[0029] Furthermore, such as Figure 1 and Figure 2 As shown, the upper surface of the fixture base 1 has an internal threaded hole 13 on the side of the opening at the upper end of the motor placement hole 11.

[0030] Furthermore, such as Figures 1 to 3 As shown, the new type of motor torque testing fixture also includes a fixture gear 5, which is anti-rotationally mounted on the upper end of the output shaft 4.

[0031] It should be noted that when using the novel motor torque testing fixture of this embodiment to perform torque testing on the test motor 6, the test motor 6 is a gear output motor and includes a housing 61 and an output gear 62 located at the output end. The torque test specifically includes the following steps:

[0032] Step a: Place the test motor 6 in the motor placement hole 11, and fasten the housing 61 of the test motor 6 to the fixture base 1 by a locking screw (not shown in the figure) that is screwed into the inner thread hole 13 of the base.

[0033] Step b: Mount the jig gear 5 on the output shaft 4 to prevent it from rotating, and make the output gear 62 of the test motor 6 mesh with the jig gear 5;

[0034] Step c: Connect the test connection end of torque meter 2 to the upper end of output shaft 4, and fix torque meter 2 on output shaft 4;

[0035] Step d: Power on the test motor 6. After the test motor 6 is powered on, the output gear 62 rotates. The gear transmission pair structure composed of the output gear 62 and the fixture gear 5 drives the output shaft 4 to rotate. During this process, the operator can hold the housing part of the fixed torque meter 2 by hand. The output shaft 4 driven by the test motor 6 drives the test connection end of the torque meter 2. At this time, the torque data of the test motor 6 can be read through the torque meter 2.

[0036] It should be emphasized that in this embodiment, the torque meter 2 directly measures the torque of the gear output motor through a transmission structure consisting of a jig gear 5, an output shaft 4, and a bearing 3. In other words, the new motor torque testing jig in this embodiment can be effectively applied to the torque measurement of gear output motors.

[0037] In summary, the novel motor torque testing fixture of this embodiment has the advantage of novel structural design and can be effectively applied to the torque measurement of gear output motors through the above structural design.

[0038] Example 2, as Figure 2 and Figure 3 As shown, the difference between this embodiment 2 and embodiment 1 is that the upper end of the output shaft 4 is provided with a shaft shoulder 41 and a shaft flat part 42 located on the upper side of the shaft shoulder 41 and having a flat shape.

[0039] The central hole 51 of the jig gear 5 is flat, and the central hole 51 of the jig gear 5 is fitted onto the flat part 42 of the output shaft 4, and the lower surface of the jig gear 5 abuts against the shoulder 41 of the shaft.

[0040] When the jig gear 5 is mounted on the output shaft 4 to prevent rotation, the jig gear 5 is mounted on the flat part 42 of the output shaft 4 through the flat central hole 51. With the flat part 42 of the shaft and the central hole 51 of the jig gear 5 respectively, this embodiment 2 can effectively ensure that the jig gear 5 and the output shaft 4 are connected to prevent rotation and achieve synchronous rotation of the two.

[0041] Example 3, as Figures 1 to 3 As shown, the difference between this embodiment 3 and embodiment 2 is that: the upper surface of the fixture gear 5 is provided with a connecting sleeve 52, the connecting sleeve 52 and the fixture gear 5 are an integral structure, and the central hole 51 of the fixture gear 5 penetrates the core of the connecting sleeve 52.

[0042] The connecting sleeve 52 has an outwardly opening gear internal thread hole 53 that communicates with the center hole 51 of the fixture gear 5 on its side wall.

[0043] In addition, the test connection end of the torque meter 2 is provided with a fitting part 21, which is fitted around the connecting sleeve 52 of the jig gear 5. The fitting part 21 of the torque meter 2 has a screw hole 22.

[0044] Furthermore, the new motor torque testing fixture also includes a locking screw 7, which passes through the screw hole 22 of the sleeve part 21 of the torque meter 2 and is screwed into the gear internal thread hole 53 of the connecting sleeve 52 of the fixture gear 5.

[0045] Example 4, as Figure 2 and Figure 3 As shown, the difference between this embodiment four and embodiment one is that the lower end of the output shaft 4 is rotatably mounted in the shaft mounting hole 12 through two bearings 3 arranged at intervals.

[0046] Example 5, such as Figure 1 and Figure 2 As shown, the difference between this fifth embodiment and the first embodiment is that the side wall of the motor placement hole 11 is provided with a clearance notch 14.

[0047] Regarding the clearance gap 14 in this embodiment five, it is used to clear the connection line of the test motor 6 so that the test motor 6 can be energized and connected.

[0048] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A novel motor torque testing fixture, comprising a fixture base (1) and a torque meter (2); Its features are: The fixture base (1) has an upward-facing motor placement hole (11) and a shaft mounting hole (12). A vertically arranged output shaft (4) is rotatably mounted in the shaft mounting hole (12) via a bearing (3). The upper end of the output shaft (4) extends to the upper side of the fixture base (1). The upper surface of the fixture base (1) is provided with a base internal thread hole (13) on the side of the upper opening of the motor placement hole (11). The new type of motor torque testing fixture also includes a fixture gear (5), which is anti-rotationally mounted on the upper end of the output shaft (4); When the new motor torque testing fixture performs torque testing on the test motor (6), the test motor (6) is placed in the motor placement hole (11), and the housing (61) of the test motor (6) is fastened to the fixture base (1) by a locking screw that is screwed into the inner thread hole (13) of the base. The output gear (62) of the test motor (6) meshes with the fixture gear (5).

2. The novel motor torque testing fixture according to claim 1, characterized in that: The upper end of the output shaft (4) is provided with a shaft shoulder (41) and a shaft flat part (42) located on the upper side of the shaft shoulder (41) and having a flat shape. The central hole (51) of the fixture gear (5) is flat, and the central hole (51) of the fixture gear (5) is fitted onto the flat part (42) of the output shaft (4), and the lower surface of the fixture gear (5) abuts against the shoulder (41) of the shaft.

3. The novel motor torque testing fixture according to claim 2, characterized in that: The upper surface of the fixture gear (5) is provided with a connecting sleeve (52), the connecting sleeve (52) and the fixture gear (5) are an integral structure, and the central hole (51) of the fixture gear (5) penetrates the core of the connecting sleeve (52). The side wall of the connecting sleeve (52) has an outwardly opening gear internal thread hole (53) that communicates with the center hole (51) of the fixture gear (5). The torque meter (2) has a test connection end with a sleeve part (21). The sleeve part (21) of the torque meter (2) is sleeved around the connecting sleeve (52) of the fixture gear (5). The sleeve part (21) of the torque meter (2) has a screw hole (22). The new motor torque testing fixture also includes a locking screw (7), which passes through the screw hole (22) of the sleeve part (21) of the torque meter (2) and is screwed into the gear internal thread hole (53) of the connecting sleeve (52) of the fixture gear (5).

4. The novel motor torque testing fixture according to claim 1, characterized in that: The lower end of the output shaft (4) is rotatably mounted in the shaft mounting hole (12) by two bearings (3) arranged at intervals.

5. A novel motor torque testing fixture according to claim 1, characterized in that: The side wall of the motor placement hole (11) is provided with a clearance notch (14).

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