Crane stator circuit detection device

Abstract

The utility model discloses a crane stator circuit detection device, which relates to the technical field of detection devices, and comprises a machine base and a stator body, the stator body is arranged in the machine base, a voltage and current measuring meter is arranged outside a machine shell, the top ends of a plurality of groups of first wiring terminals are respectively provided with a first connector, and a second connector is arranged at the top end of the first wiring terminal. The voltage and current measuring device is reasonable in design structure, the first connector, the second connector, the swing arm and the voltage and current measuring meter can be matched with each other, the voltage and current measuring meter can be connected with the swing arm, the swing arm is connected with the swing arm, the swing arm is connected with the swing arm, and the swing arm is connected with the swing arm. Power is provided for the moving position of the second connector through the swing arm, after the second connector moves, the stator circuit and the voltage and current measuring meter can be electrically connected together, before the crane runs, the circuit is detected through the voltage and current measuring meter, and the safety of the crane during running is improved.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, specifically a crane stator circuit testing device. Background Technology

[0002] The stator circuit is the stationary part of the motor, mainly composed of three parts: the stator core, the stator windings, and the frame. The stator core is part of the motor's main magnetic circuit and is generally made of multiple insulated silicon steel sheets stacked together. It is used to enhance the conduction of the magnetic field and reduce energy loss. The stator windings are the core part of the stator circuit. They generate a rotating magnetic field through current and interact with the rotor windings to achieve energy conversion. The stator windings consist of multiple coils, which are embedded in the slots of the stator core according to a certain pattern and connected into different winding forms according to the type of motor and design requirements. The frame is mainly used to fix the stator core and stator windings and provide mechanical support and protection for the motor. At the same time, the frame also plays a role in heat dissipation, dissipating the heat generated during motor operation. The frame is generally made of materials such as cast iron, cast steel, or aluminum alloy and has sufficient strength and rigidity.

[0003] During crane operation, the stator circuit may experience abnormal power loss due to power supply failure, short circuit, or poor contact. If not detected and addressed promptly, this could lead to serious accidents such as motor malfunction or falling loads. Most existing cranes use overcurrent protection or thermal relays for protection, which may have the following drawbacks: delayed response; traditional protection devices rely on mechanical relays, resulting in long detection and action times and limited functionality; and they only address overcurrent or overheat protection, failing to comprehensively detect voltage drops, phase loss, and other anomalies. Therefore, we provide a crane stator circuit detection device to solve these problems. Utility Model Content

[0004] Technical problems to be solved:

[0005] This utility model proposes a crane stator circuit detection device. Through the cooperation between the first connector, the second connector, the swing arm, and the voltage and current measuring meter, it solves the problem that the stator circuit may experience abnormal power loss due to power supply failure, short circuit, or poor contact. If not detected and dealt with in time, this may lead to serious accidents such as motor runaway or heavy objects falling.

[0006] Technical solution:

[0007] To achieve the above objectives, this utility model provides the following technical solution: a crane stator circuit detection device, comprising a base and a stator body, wherein the stator body is installed inside the base, a winding slot is provided on the inner side of the stator body, a housing is installed on the top of the base, a voltage and current measuring meter is installed on the outside of the housing, and multiple sets of first terminals are installed inside the housing, the multiple sets of first terminals are symmetrical, and a first connector is installed at the top of each of the multiple sets of first terminals;

[0008] The inner bottom wall of the housing is equipped with multiple sets of support frames. The inner walls of the multiple sets of support frames are rotatably connected to a rotating shaft. The outer surface of the rotating shaft is connected to a swing arm. Both ends of the swing arm are connected to a sliding sleeve. The inner wall of the sliding sleeve is slidably connected to a second connector. The sliding sleeve is provided with a first spring. One end of the second connector is connected to a second terminal.

[0009] A gear is connected to the end of the rotating shaft, and a toothed plate is meshed with the gear. Support rods are connected to both ends of the toothed plate. A sleeve is connected to the inner wall of the housing, and a push rod is slidably connected to the inner wall of the sleeve. A second spring is sleeved on the outside of the push rod, and one end of the second spring located inside the housing is connected to one end of the support rod.

[0010] Furthermore, a support plate is connected to the outer surface of the push rod, one end of the second spring is connected to one side of the support plate, and the other end of the second spring is connected to the inner bottom wall of the sleeve.

[0011] Furthermore, one end of the first spring is connected to the end of the second connector located inside the sliding sleeve, and the other end of the first spring is connected to the inner bottom wall of the sliding sleeve.

[0012] Furthermore, a slide is connected to one side of the first terminal block, and the inner wall of the slide is slidably connected to the outer surface of the support rod.

[0013] Furthermore, a button is connected to one end of the push rod located outside the housing, and a shield is connected to the outer surface of the housing, with the shield located outside the button.

[0014] Furthermore, the number of the multiple sets of the first terminals is three, the number of the first terminals in each set is two, and the number of the multiple sets of the support brackets is three.

[0015] Beneficial effects:

[0016] Compared with existing technologies, this crane stator circuit detection device has the following advantages:

[0017] I. The crane stator circuit detection device, through the cooperation between the first connector, the second connector, the swing arm, and the voltage and current measuring meter, provides power for the movement of the second connector through the swing arm. After the second connector moves to the correct position, it can electrically connect the stator circuit with the voltage and current measuring meter. Before the crane is operated, the circuit is tested by the voltage and current measuring meter, thereby improving the safety of the crane during operation.

[0018] Second, the crane stator circuit detection device, through the cooperation between the button and the shield, increases the contact area between the hand and the push rod by the button, making it easier for the hand to push the push rod to move its position and reducing the pressure on the hand. The shield covers the button to prevent accidental button touch and improve button safety. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional schematic diagram of the internal structure of the casing of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the first terminal block of this utility model;

[0023] Figure 4 This is a schematic diagram of the planar structure of the support frame of this utility model;

[0024] Figure 5 This is a cross-sectional schematic diagram of the internal structure of the sleeve of this utility model;

[0025] Figure 6 This is a cross-sectional schematic diagram of the internal structure of the sliding sleeve of this utility model.

[0026] In the diagram: 1. Base; 2. Stator body; 3. Winding slot; 4. Housing; 5. Voltage and current measuring meter; 6. First terminal; 7. First connector; 8. Support frame; 9. Rotating shaft; 10. Swing arm; 11. Sliding sleeve; 12. Second connector; 13. First spring; 14. Second terminal; 15. Gear; 16. Gear plate; 17. Support rod; 18. Sleeve; 19. Push rod; 20. Second spring; 21. Support plate; 22. Slide; 23. Button; 24. Shield. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1-6 As shown, this utility model provides a technical solution: a crane stator circuit detection device, including a base 1 and a stator body 2. The stator body 2 is installed inside the base 1, and the base 1 provides support for the stator body 2 to maintain its stability. A winding slot 3 is provided on the inner side of the stator body 2, providing installation space for the stator windings. The stator circuit mainly consists of the stator windings and related connecting components. The stator windings are part of the stator circuit and are made of insulated copper wire, typically in single-layer or double-layer configurations distributed within the winding slots 3. A housing 4 is installed above the base 1, through which the device detects the stator circuit. The necessary components provide support. A voltage and current measuring meter 5 is installed on the outside of the housing 4. The voltage and current measuring meter 5 is used to measure the circuit inside the stator winding. The voltage and current measuring meter 5 can measure DC current, DC voltage, AC current, AC voltage, resistance, and audio level, and can also measure some parameters such as AC current, capacitance, and inductance. Multiple sets of first terminals 6 are installed inside the housing 4, and the multiple sets of first terminals 6 are symmetrical. The top of each set of first terminals 6 is equipped with a first connector 7. The two ends of the winding circuit are connected through the first terminals 6. The first terminals 6 are electrically connected to the second connector 12 through the first connector 7.

[0029] Multiple sets of support frames 8 are installed on the inner bottom wall of the casing 4. Each set of support frames 8 has a rotating shaft 9 rotatably connected to its inner wall. A swing arm 10 is connected to the outer surface of the rotating shaft 9. The support frames 8 provide support for the rotating shaft 9, maintaining its stability, and the rotating shaft 9 provides support for the swing arm 10, enabling the swing arm 10 to rotate and swing. Both ends of the swing arm 10 are connected to sliding sleeves 11. A second connector 12 is slidably connected to the inner wall of the sliding sleeve 11. A first spring 13 is installed inside the sliding sleeve 11, and the second connector 12... One end is connected to a second terminal 14, and is electrically connected to a voltage and current measuring meter 5 through a second connector 12. The second connector 12 is supported by a sliding sleeve 11 to maintain its stability. One end of a first spring 13 is connected to the end of the second connector 12 located inside the sliding sleeve 11, and the other end of the first spring 13 is connected to the inner bottom wall of the sliding sleeve 11. The first spring 13 provides elastic support force to the second connector 12, pushing the second connector 12 to contact the first connector 7 tightly.

[0030] A gear 15 is connected to the end of the rotating shaft 9. The gear 15 meshes with a toothed plate 16. Support rods 17 are connected to both ends of the toothed plate 16. A sleeve 18 is connected to the inner wall of the housing 4. A push rod 19 is slidably connected to the inner wall of the sleeve 18. A second spring 20 is sleeved on the outside of the push rod 19. One end of the second spring 20 located inside the housing 4 is connected to one end of the support rod 17. The rotating shaft 9 receives power through the gear 15 and generates a pushing force by pushing the push rod 19. The push rod 19 transmits the power to the toothed plate 16 through the support rod 17, thereby causing the toothed plate 16 to move. While moving, the toothed plate 16 drives the gear 15 to rotate. The rotation of the gear 15 drives the swing arm 10 to swing through the rotating shaft 9. While swinging, the swing arm 10 causes the second connector 12 to contact and disengage from the first connector 7.

[0031] A support plate 21 is connected to the outer surface of the push rod 19. One end of the second spring 20 is connected to one side of the support plate 21, and the other end of the second spring 20 is connected to the inner bottom wall of the sleeve 18. The second spring 20 provides elastic support force for the push rod 19. When the button 23 pushes the push rod 19 to move, the second spring 20 is compressed. The compressed second spring 20 provides power for the push rod 19 to reset.

[0032] A slide 22 is connected to one side of the first terminal 6. The inner wall of the slide 22 is slidably connected to the outer surface of the support rod 17. The slide 22 provides support force to the support rod 17 and maintains the stability of the support rod 17 when it moves.

[0033] A button 23 is connected to one end of the push rod 19 located outside the housing 4. A shield 24 is connected to the outer surface of the housing 4 and is located outside the button 23. The button 23 increases the contact area between the hand and the push rod 19, making it easier for the hand to push the push rod 19 to move its position. The shield 24 encloses the button 23 to prevent accidental activation of the button 23. The three buttons 23 correspond to different tooth plates 16, and the three first terminals 6 and the two terminals 14 correspond to three different circuit loops.

[0034] There are three sets of first terminals 6, with two first terminals 6 in each set. There are three sets of support frames 8. The number of first terminals 6 is the same as the number of second terminals 14. There are generally two to three sets of stator windings. The three sets of first terminals 6 are electrically connected to the input and output terminals of the three sets of stator windings, respectively. The three sets of second terminals 14 are electrically connected to the two measuring terminals of the voltage and current measuring meter 5. There are three support frames 8, which correspond to each set of swing arms 10.

[0035] Working principle: In use, the push rod 19 is first moved by the button 23. After the push rod 19 moves, it transmits power to the support rod 17. At the same time as the push rod 19 moves, the second spring 20 is compressed by the support plate 21. The compressed second spring 20 provides power for the push rod 19 to reset. The support rod 17 drives the toothed plate 16 to move. At the same time as the toothed plate 16 moves, it drives the gear 15 to rotate. At the same time as the gear 15 rotates, it drives the swing arm 10 to swing through the rotating shaft 9. After the swing arm 10 swings, it drives the second connector 12 to contact the first connector 7 through the sliding sleeve 11. The second connector 12 and the first connector 7 electrically connect the circuit to the voltage and current measuring meter 5. The voltage and current measuring meter 5 is used to measure the circuit.

[0036] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A crane stator circuit testing device, comprising a frame (1) and a stator body (2), characterized in that: The stator body (2) is installed inside the base (1). A winding slot (3) is provided on the inner side of the stator body (2). A housing (4) is installed on the top of the base (1). A voltage and current measuring meter (5) is installed on the outside of the housing (4). Multiple sets of first terminals (6) are installed inside the housing (4), and the multiple sets of first terminals (6) are symmetrical. A first connector (7) is installed at the top of each of the multiple sets of first terminals (6). The inner bottom wall of the housing (4) is equipped with multiple sets of support frames (8). The inner walls of the multiple sets of support frames (8) are rotatably connected to a rotating shaft (9). The outer surface of the rotating shaft (9) is connected to a swing arm (10). Both ends of the swing arm (10) are connected to a sliding sleeve (11). The inner wall of the sliding sleeve (11) is slidably connected to a second connector (12). The sliding sleeve (11) is provided with a first spring (13). One end of the second connector (12) is connected to a second terminal (14). The end of the rotating shaft (9) is connected to a gear (15), the gear (15) is meshed with a toothed plate (16), both ends of the toothed plate (16) are connected to a support rod (17), the inner wall of the housing (4) is connected to a sleeve (18), the inner wall of the sleeve (18) is slidably connected to a push rod (19), the outside of the push rod (19) is sleeved with a second spring (20), one end of the second spring (20) located inside the housing (4) is connected to one end of the support rod (17).

2. The crane stator circuit detection device according to claim 1, characterized in that: The outer surface of the push rod (19) is connected to a support plate (21), one end of the second spring (20) is connected to one side of the support plate (21), and the other end of the second spring (20) is connected to the inner bottom wall of the sleeve (18).

3. The crane stator circuit detection device according to claim 1, characterized in that: One end of the first spring (13) is connected to one end of the second connector (12) located inside the sliding sleeve (11), and the other end of the first spring (13) is connected to the inner bottom wall of the sliding sleeve (11).

4. The crane stator circuit detection device according to claim 1, characterized in that: A slide (22) is connected to one side of the first terminal (6), and the inner wall of the slide (22) is slidably connected to the outer surface of the support rod (17).

5. A crane stator circuit detection device according to claim 1, characterized in that: The push rod (19) is connected to a button (23) at one end outside the housing (4). A shield (24) is connected to the outer surface of the housing (4), and the shield (24) is located outside the button (23).

6. The crane stator circuit detection device according to claim 1, characterized in that: The number of the first terminals (6) in the multiple sets is three, the number of the first terminals (6) in each set is two, and the number of the support frames (8) in the multiple sets is three.

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