Power system debugging test device

Abstract

The invention relates to an electric power system debugging test device in the technical field of electric power system debugging, which comprises a machine body with an upper chamber and a lower chamber, a test system for electric power system debugging is mounted in the upper chamber, a supporting assembly is rotatably connected to the corner of the bottom of the lower chamber, and rollers and supporting legs are arranged at the two ends of the bottom of the supporting assembly respectively; a state conversion assembly is arranged in the lower cavity and used for adjusting the angle of the supporting assembly, so that the machine body is in a movable or fixed supporting state. The design of the supporting assembly and the state conversion assembly is adopted, the collective state can be rapidly and conveniently adjusted to be a moving or fixed supporting state, the design of the supporting air bag and the ventilation pipe is adopted, the device can automatically adapt to the inclined ground, and the machine body is kept horizontal.

Description

Technical Field

[0001] The invention relates to the technical field of power system debugging, and in particular to a power system debugging test device. Background Art

[0002] Power system stability control is an additional excitation control technology studied to suppress low-frequency oscillations. It introduces an additional signal that is ahead of the shaft speed in the excitation voltage regulator to generate a positive damping torque to overcome the negative damping torque generated in the original excitation voltage regulator. It is used to improve the damping of the power system and solve the problem of low-frequency oscillations. It is one of the important measures to improve the dynamic stability of the power system. It extracts signals related to this oscillation, such as the active power, speed or frequency of the generator, processes them, and adds the generated additional signal to the excitation regulator, so that the generator generates an additional torque to damp the low-frequency oscillation.

[0003] The existing power system debugging test device has made some progress, but there are still some shortcomings. For example, the Chinese patent with the authorization announcement number CN212872560U discloses a power system debugging test device, which drives the connecting rod to rise and fall through the adjustment assembly composed of a motor, a threaded rod and a threaded sleeve, thereby realizing the lifting function of the universal roller, which is convenient for fixing and moving the test device. However, this design may not provide sufficient stability on uneven ground, resulting in instability when the test device is in a non-fixed or tilted state.

[0004] Another Chinese patent with the authorization announcement number CN217404414U discloses a power system debugging test device, which realizes the function of conveniently moving and fixing the test device by driving the support plate up and down through the second electric push rod. Although this method improves the mobility of the equipment, it is still difficult to ensure that the equipment always remains horizontal and stable when facing complex terrain.

[0005] In addition, a Chinese patent with authorization announcement number CN207965730U discloses an electric power system debugging test device, which utilizes a combination structure of an upper clamp, a lower clamp, a first straight rod, a rotating shaft, a second straight rod and a roller, so that the roller can be in an extended or retracted state, thereby achieving the purpose of conveniently moving and fixing the test device.

[0006] However, the above three prior arts fail to completely solve the problem of keeping the test device level and stable on uneven ground, which may affect normal debugging work in actual operation.

[0007] To this end, we designed an electric power system debugging test device that can ensure that the test device is level and fixed on different grounds. Summary of the invention

[0008] In order to overcome the deficiencies in the background technology, the present invention discloses a power system debugging test device.

[0009] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: A power system debugging test device comprises a body with upper and lower chambers, wherein a test system for power system debugging is installed in the upper chamber, and a support assembly is rotatably connected to the bottom corner of the lower chamber, and the two ends of the bottom of the support assembly are respectively provided with rollers and feet; a state conversion assembly is provided inside the lower chamber, which is used to adjust the angle of the support assembly so that the body is in a moving or fixed support state; The support assembly includes a V-shaped frame, the tip of the V-shaped frame is rotatably connected to the middle of the mounting groove at the bottom of the machine body through a pin, and rollers and supporting feet are respectively installed at both ends of the open end of the V-shaped frame; There are supporting air bags at the bottom of the legs, and the supporting air bags at the bottom of the four legs are connected through ventilation pipes to adapt to different inclined ground surfaces; The support leg is universally hinged to one end of the corresponding V-shaped frame opening through a ball joint.

[0010] Preferably, the state conversion component includes a driving device arranged in the middle of the lower chamber, and the driving device has a telescopic shaft capable of reciprocating along the length direction of the body at the positions corresponding to the two ends of the body, and the outer shaft head of the telescopic shaft is provided with a connecting rod arranged along the width direction of the body, and the two ends of the connecting rod are respectively movably inserted into the corresponding mounting grooves and extend to the waist-shaped sliding hole of the corresponding V-shaped frame.

[0011] Preferably, the driving device includes a mounting seat corresponding to the middle of the lower chamber, a bidirectional threaded sleeve and a forward and reverse motor driving the bidirectional threaded sleeve to rotate, and the two ends of the bidirectional threaded sleeve are respectively threadedly matched with the corresponding inner end of the telescopic shaft.

[0012] Preferably, the mounting seat is slidably connected to the fixing frame along the length direction of the machine body, and the sliding connection is achieved through a linear slide rail pair to adapt to different inclined ground surfaces and ensure the horizontal posture of the machine body.

[0013] Preferably, a pull rod is provided at one end of the machine body, and the lower end of the pull rod is correspondingly hinged to the side wall of the machine body, so that it can automatically rotate according to the height of the staff when pulled, thereby improving the operating comfort.

[0014] Preferably, the legs of the V-shaped frame are correspondingly located on the inner side of the roller.

[0015] Preferably, the waist-shaped sliding hole is correspondingly arranged on the side of the V-shaped frame close to the middle of the machine body.

[0016] Due to the adoption of the above-mentioned technical solution, the present invention has the following beneficial effects: 1. The design of support components and state conversion components can quickly and conveniently adjust the collective state to mobile or fixed support state, and the support airbag and ventilation tube design can automatically adapt to the inclined ground and keep the body level; 2. The coordinated design of the linear guide rail pair and the forward and reverse motor can make the rotation angle of the V-frame at both ends of the machine body different, thereby increasing the height of the legs at one end of the machine body, adapting to the ground with a larger slope, so that when the machine body is in a fixed support state, it can be ensured to be in a horizontal posture. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of the bottom of the lower chamber of the body in the present invention; Figure 3 It is a schematic diagram of the assembly structure of the support component and the state conversion component in the present invention; Figure 4 for Figure 3 A local enlarged schematic diagram of I; Figure 5 for Figure 3 Right view of .

[0018] In the figure: 1. body; 2. support assembly; 21. V-shaped frame; 211. waist-shaped sliding hole; 22. roller; 23. support foot; 24. ball joint; 25. support airbag; 26. ventilation pipe; 3. state conversion assembly; 31. drive device; 311. mounting seat; 312. two-way threaded sleeve; 313. fixing frame; 314. linear slide pair; 32. telescopic shaft; 33. connecting rod; 4. pull rod. DETAILED DESCRIPTION

[0019] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application and are for the convenience of describing the present invention; it should be understood that if there are terms such as "end", "side", "end portion", "lateral", "lateral", "transverse", "longitudinal", etc. indicating directions or positional relationships, they only correspond to the length and width of the corresponding components, that is, the "end portion" indicates the head and tail areas in the length direction of the corresponding component, and the "side portion" indicates the head and tail areas in the width direction of the corresponding component; this is for the convenience of describing the present invention and is not to indicate or imply that the device or element referred to must have a specific direction.

[0020] Embodiment 1, in combination with the attached Figure 1-5, a power system debugging test device, comprising a body 1 with upper and lower chambers, a test system for power system debugging is installed inside the upper chamber (not shown in the figure), a support assembly 2 is rotatably connected to the bottom corner of the lower chamber, and the two ends of the bottom of the support assembly 2 are respectively provided with rollers 22 and feet 23, and a state conversion assembly 3 for adjusting the angle of the support assembly 2 so that the body 1 is in a moving or fixed support state is installed inside the lower chamber; To facilitate the movement of the machine body 1, a pull rod 4 is provided at one end of the machine body 1. As required, the lower end of the pull rod 4 is correspondingly hinged to the side wall of the machine body 1, that is, when the upper end of the pull rod 4 is pulled, the pull rod 4 can automatically rotate according to the different heights of the staff, so that the staff of various heights can pull the machine body 1 to move in a comfortable posture.

[0021] Among them, the bottom corner of the machine body 1 is provided with an upward mounting groove for rotatably mounting the support assembly 2; the support assembly 2 includes a V-shaped frame 21, the tip of the V-shaped frame 21 is rotatably connected to the middle of the mounting groove cavity through a pin shaft, and rollers 22 and support feet 23 are respectively installed at both ends of the open end of the V-shaped frame 21; wherein the support feet 23 are universally hinged with one end of the corresponding open end of the V-shaped frame 21 through a ball joint 24, so as to stably support the machine body 1 on various types of ground. Among them, the side of the V-shaped frame 21 close to the middle of the machine body 1 is provided with a waist-shaped sliding hole 211 that cooperates with the state conversion assembly 3.

[0022] The state conversion component 3 cooperates with the waist-shaped sliding hole 211 at different positions to drive the V-shaped frame 21 to rotate, so that the roller 22 rises or falls, and the support leg 23 falls or rises, so that the roller 22 is higher or lower than the support leg 23. When the roller 22 is higher than the support leg 23, the roller 22 is suspended and the support leg 23 is on the ground, and the machine body 1 is in a fixed support state; when the roller 22 is lower than the support leg 23, the roller 22 is on the ground and the support leg 23 is suspended, and the machine body 1 is in a moving state.

[0023] For the convenience of understanding, the vertical plane where the V-shaped frame 21 is located is parallel to the vertical plane where the length axis of the body 1 is located. At the same time, for the convenience of understanding, the same V-shaped frame 21 is described as an example in which the support foot 23 is located on the inner side of the roller 22. Figure 2-4 shown.

[0024] The state conversion component 3 includes a driving device 31 arranged in the middle of the lower chamber. The driving device 31 has a telescopic shaft 32 that can reciprocate along the length direction of the body 1 at the positions of the two ends of the corresponding body 1. The outer shaft head of the telescopic shaft 32 is provided with a connecting rod 33 arranged along the width direction of the body 1. The two ends of the connecting rod 33 are movably inserted into the corresponding installation grooves and extend to the waist-shaped sliding hole 211 of the corresponding V-shaped frame 21. It should be noted that: the side wall of the installation groove has a clearance gap to ensure that it does not affect the movement of the connecting rod 33 along the length direction of the body 1. In other words: the driving device 31 can drive the telescopic shaft 32 to extend or contract, wherein the extension of the telescopic shaft 32 is used as an example for detailed description. When the telescopic shaft 32 is extended, the telescopic shaft 32 drives the connecting rod 33 to move outward. Under the cooperation of the waist-shaped sliding hole 211 and the connecting rod 33 of the V-shaped frame 21, as shown Figure 4 As shown, Figure 4 The V-shaped frame 21 on the middle right side will rotate counterclockwise, at which time the roller 22 rises and the support leg 23 descends until the support leg 23 touches the ground and the roller 22 leaves the ground, so that the machine body 1 is in a fixed support state.

[0025] According to the need, the two telescopic shafts 32 can be extended or contracted at the same time, or they can be extended or contracted at different times. The driving device 31 can be a two-way telescopic device, i.e. a double-axis telescopic device, or a combination of two single-axis telescopic devices.

[0026] In order to ensure the stability of the body 1 when it is in a fixed support state, a driving device 31 with a screw and nut combination is preferably used. In one possible embodiment, the driving device 31 includes a mounting seat 311, a bidirectional threaded sleeve 312 rotatably connected to the mounting seat 311, and a forward and reverse motor (not visible in the figure) that drives the bidirectional threaded sleeve 312 to rotate. The two ends of the bidirectional threaded sleeve 312 are respectively threadedly matched with the inner end portions of the telescopic shafts 32 at both ends.

[0027] In order to adapt to different inclined ground surfaces, the driving device 31 also includes a fixing frame 313 fixedly installed in the middle of the lower chamber, and the mounting seat 311 is slidably connected along the length direction of the body 1. According to needs, the mounting seat 311 is slidably connected to the fixing frame 313 through a linear slide pair 314, that is, the sliding part of the linear slide pair 314 can drive the mounting seat 311 to move. Through the cooperation of the linear slide pair 314 and the reversing motor, the rotation angle of the V-shaped frame 21 at the two ends of the body 1 is different, thereby ensuring the horizontal posture of the body 1 on the inclined ground.

[0028] In order to adapt to more complex ground conditions, support airbags 25 are provided at the bottom of the legs 23, and the support airbags 25 at the bottom of the four legs 23 are connected through a vent 26. It should be noted that the support airbags 25 are pressurized support airbags 25. That is, when three of the legs 23 touch the ground, due to the influence of the gravity of the machine body 1, the three legs 23 are stressed, and the gas in the corresponding support airbag 25 flows into another support airbag 25 through the vent 26, so that the length of the support airbag 25 increases and touches the ground.

[0029] It should be noted that the vertical plane where the V-shaped frame 21 is located can also be parallel to the vertical plane where the width axis of the machine body 1 is located. The same V-shaped frame 21 foot 23 can also be designed to be located outside the roller 22, and the operating principle is the same as the above example, which will not be described in detail here.

[0030] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A power system debugging test device, comprising a body (1) having two upper and lower chambers, wherein a test system for power system debugging is installed in the upper chamber, characterized in that: A support assembly (2) is rotatably connected at the bottom corner of the lower chamber, and the two ends of the bottom of the support assembly (2) are respectively provided with rollers (22) and supporting feet (23); a state conversion assembly (3) is provided inside the lower chamber for adjusting the angle of the support assembly (2) so that the machine body (1) is in a moving or fixed support state; The support assembly (2) comprises a V-shaped frame (21), the tip of the V-shaped frame (21) being rotatably connected to the middle of a mounting groove at the bottom of the machine body (1) via a pin, and rollers (22) and supporting feet (23) are respectively installed at both ends of the open end of the V-shaped frame (21); A support air bag (25) is provided at the bottom of the support foot (23), and the support air bags (25) at the bottom of the four support feet (23) are connected through a ventilation pipe (26) to adapt to different inclined ground surfaces; The support leg (23) is universally hinged to one end of the corresponding open end of the V-shaped frame (21) via a ball joint (24).

2. The power system debugging test device according to claim 1, characterized in that: The state conversion assembly (3) comprises a driving device (31) arranged in the middle of the lower chamber, wherein the driving device (31) has a telescopic shaft (32) capable of reciprocating along the length direction of the body (1) at positions corresponding to both ends of the body (1), and the outer shaft head of the telescopic shaft (32) is provided with a connecting rod (33) arranged along the width direction of the body (1), and the two ends of the connecting rod (33) are respectively movably inserted into corresponding mounting grooves and extend to the waist-shaped sliding hole (211) of the corresponding V-shaped frame (21).

3. The power system debugging test device according to claim 2, characterized in that: The driving device (31) comprises a mounting seat (34) correspondingly arranged in the middle of the lower chamber, a bidirectional threaded sleeve (35), and a forward and reverse motor for driving the bidirectional threaded sleeve (35) to rotate, wherein both ends of the bidirectional threaded sleeve (35) are respectively threadably matched with the inner end of the corresponding telescopic shaft (32).

4. The power system debugging test device according to claim 3 is characterized in that: The mounting seat (34) is slidably connected to the fixing frame (36) along the length direction of the machine body (1), and is slidably connected via a linear slide rail pair (37) to adapt to different inclined ground surfaces and ensure the horizontal posture of the machine body (1).

5. The power system debugging test device according to claim 1, characterized in that: A pull rod (4) is provided at one end of the machine body (1), and the lower end of the pull rod (4) is correspondingly hinged to the side wall of the machine body (1), so that when pulled, it can automatically rotate according to the height of the staff, thereby improving the operating comfort.

6. The power system debugging test device according to claim 1, characterized in that: The support legs (23) of the V-shaped frame (21) are correspondingly located on the inner side of the roller (22).

7. The power system debugging test device according to claim 2, characterized in that: The waist-shaped sliding hole (211) is correspondingly arranged on the side of the V-shaped frame (21) close to the middle of the machine body (1).

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