Servo valve detection device

Abstract

The utility model discloses a servo valve detection device, which belongs to the technical field of servo valves, and comprises a servo valve tester body, the side part of the servo valve tester body is provided with an abdomen tying and hanging mechanism, one side of the servo valve tester body is internally provided with a winding groove, the inner cavity of the winding groove is rotatably connected with a rotating rod, and the rotating rod is connected with a servo valve. And the outer side of the rotating rod is fixedly sleeved with a winding drum. According to the utility model, after the sling is hung at the neck and the servo valve tester body is placed at a proper position of the abdomen, the rotating disc is rotated to drive the rotating rod and the winding drum to rotate, and the sling with the redundant length is wound up through the winding drum, so that the sling just hangs the servo valve tester body at the proper position of the abdomen; and the bottom end of the fastening bolt is installed in one screw hole in a threaded mode to fix the winding drum, and the function of adjusting the length of the hanging belt is achieved.

Description

Technical Field

[0001] This utility model relates to the field of servo valve technology, and more specifically, to a servo valve detection device. Background Technology

[0002] Hydraulic servo valves mainly refer to electro-hydraulic servo valves. After receiving electrical analog signals, they output modulated flow and pressure accordingly. They are both electro-hydraulic conversion elements and power amplification elements. They can convert weak electrical input signals with low power into high-power hydraulic energy output. In an electro-hydraulic servo system, they connect the electrical and hydraulic parts to realize the conversion of electro-hydraulic signals and hydraulic amplification. The electro-hydraulic servo valve is the core of the electro-hydraulic servo system control. In order to ensure the accuracy of the servo valve, it needs to be tested.

[0003] A search revealed that utility model patent CN216483926U discloses a portable servo valve performance parameter testing device, comprising a servo valve tester body, a test tube winding device, positioning pins, a sling, and a bracket. The servo valve tester body includes a control panel, with a housing at the bottom. A pin mounting hole is formed on the upper left side wall of the housing, and a storage groove is formed in the middle of the upper side wall. Rotary shaft holes are symmetrically formed on the left and right side walls of the storage groove. Connecting caps are symmetrically arranged on the left and right side walls of the housing below the pin mounting hole. The test tube winding device is installed in the left and right rotating shaft holes. The test tube winding device includes a rotating shaft, with its left and right ends rotatably connected to the left and right rotating shaft holes. Positioning pins are installed in the pin mounting holes. The left and right connecting caps are rotatably connected to the two ends of the sling. A bracket is provided at the bottom of the housing. This patent is easy to carry, frees up the hands, reduces wearing fatigue, and improves efficiency.

[0004] However, the above patent still has the following shortcomings: Although the tester can be hung in front of the abdomen using a sling, the length of the sling is fixed, which is not convenient for staff with different upper body lengths to use comfortably. In addition, the control panel should be slightly upward before use so that staff can observe the test data. It is not convenient to support the tester at this angle using a bracket. Therefore, we have proposed a servo valve detection device. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a servo valve detection device.

[0006] To solve the above problems, the present invention adopts the following technical solution:

[0007] A servo valve testing device includes a servo valve tester body. A hanging mechanism is provided on the side of the servo valve tester body. A winding groove is provided inside one side of the servo valve tester body. A rotating rod is rotatably connected to the inner cavity of the winding groove. A winding drum is fixedly sleeved on the outer side of the rotating rod. A sling is wound around the outer side of the winding drum. One end of the sling extends to the outside of the servo valve tester body and connects to the other side of the servo valve tester body. Multiple screw holes are provided on the top surface of the servo valve tester body. The top end of the rotating rod extends to the top of the servo valve tester body and is fixedly connected to a turntable. A fastening bolt is threaded onto the turntable. The bottom end of the fastening bolt is threaded into the inner cavity of a screw hole.

[0008] As a preferred embodiment of this utility model, the abdominal hanging mechanism includes rotating seats rotatably connected to the lower parts of both sides of the servo valve tester body. A connecting strap is fixedly connected to one of the rotating seats, and a loop seat is fixedly connected to the end of the connecting strap. A binding strap is fixedly connected to the other rotating seat, and a female Velcro is fixedly connected to the upper part of one end of the binding strap. A female Velcro is fixedly connected to the lower part of the binding strap.

[0009] As a preferred embodiment of this utility model, the front of the servo valve tester body is provided with control buttons and a display screen.

[0010] As a preferred embodiment of this utility model, a test connection line is provided on the top of the servo valve tester body, and handles are fixedly installed on both sides of the servo valve tester body.

[0011] As a preferred embodiment of this utility model, the bottom end of the servo valve tester body is provided with a supporting inclined surface.

[0012] As a preferred embodiment of this utility model, the plurality of screw holes are arranged evenly in a circle with the central axis of the rotating rod as the center.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] (1) In this utility model, when the sling is hung on the neck and the servo valve tester body is placed in a suitable position on the abdomen, the turntable is rotated to drive the rotating rod and the winding drum to rotate. The excess length of the sling is wound up by the winding drum so that the sling hangs the servo valve tester body in a suitable position on the abdomen. The bottom thread of the fastening bolt is installed into a screw hole to fix the winding drum, thus realizing the function of adjusting the length of the sling.

[0015] (2) In this utility model, the servo valve tester body is supported on the abdomen by the supporting inclined surface, and the top of the servo valve tester body is slightly tilted upward, which makes it convenient for the tester to operate and view the data. The bottom of the servo valve tester body is fixed on the abdomen by the cooperation of the rotating seat, connecting belt, loop seat, strap, male Velcro and female Velcro, which ensures the stability of the servo valve tester body when in use and improves the practicality of the servo valve testing device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a structural diagram of the back of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the servo valve tester body of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the sling of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the ring seat of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the strap of this utility model;

[0022] Figure 7 This utility model Figure 2 Enlarged diagram of point A in the diagram.

[0023] Explanation of the labels in the diagram:

[0024] 1. Servo valve tester body; 2. Abdominal hanging mechanism; 3. Rewind groove; 4. Rotating rod; 5. Rewind drum; 6. Lifting strap; 7. Screw hole; 8. Turntable; 9. Fastening bolt; 10. Rotating seat; 11. Connecting strap; 12. Loop seat; 13. Binding strap; 14. Female Velcro; 15. Female Velcro; 16. Handle; 17. Display screen; 18. Control button; 19. Test connection cable; 20. Support slope. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," 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 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example:

[0029] Please see Figure 1-7 A servo valve testing device includes a servo valve tester body 1. A belly-hanging mechanism 2 is provided on the side of the servo valve tester body 1. A winding groove 3 is provided inside one side of the servo valve tester body 1. A rotating rod 4 is rotatably connected to the inner cavity of the winding groove 3. A winding drum 5 is fixedly sleeved on the outer side of the rotating rod 4. A sling 6 is wound around the outer side of the winding drum 5. One end of the sling 6 extends to the outside of the servo valve tester body 1 and connects to the other side of the servo valve tester body 1. Multiple screw holes 7 are provided on the top surface of the servo valve tester body 1. The top end of the rotating rod 4 extends to the top of the servo valve tester body 1 and is fixedly connected to a turntable 8. A fastening bolt 9 is threaded onto the turntable 8. The bottom end of the fastening bolt 9 is threaded into the inner cavity of one of the screw holes 7.

[0030] In this embodiment, the sling 6 is placed on the upper side of the servo valve tester body 1, ensuring that the direction of the servo valve tester body 1 can be slightly tilted upward after the sling 6 is hung around the neck.

[0031] For details, please refer to Figure 1 , Figure 5 and Figure 6 The abdominal attachment mechanism 2 includes rotating seats 10 rotatably connected to the lower parts of both sides of the servo valve tester body 1. A connecting strap 11 is fixedly connected to one rotating seat 10, and a loop seat 12 is fixedly connected to the end of the connecting strap 11. A binding strap 13 is fixedly connected to the other rotating seat 10. A female Velcro 14 is fixedly connected to the upper part of one end of the binding strap 13, and a female Velcro 15 is fixedly connected to the lower part of the binding strap 13.

[0032] For details, please refer to Figure 1 The servo valve tester body 1 has a control button 18 on its front side and a display screen 17 on its front side.

[0033] In this embodiment, the servo valve tester body 1 is operated using the control button 18, and the data detected by the servo valve tester body 1 is displayed using the display screen 17.

[0034] For details, please refer to Figure 1 The servo valve tester body 1 has a test connection cable 19 on its top and handles 16 fixedly installed on both sides of the servo valve tester body 1.

[0035] In this embodiment, the servo valve tester body 1 and the servo valve are connected by the test connection line 19 so that the servo valve can be tested by the servo valve tester body 1. In addition, the device can be picked up by holding the handle 16.

[0036] For details, please refer to Figure 3 The bottom of the servo valve tester body 1 is provided with a support slope 20.

[0037] In this embodiment, when the support slope 20 is attached to the abdomen, the servo valve tester body 1 is slightly tilted upwards, making it easier for the tester to view and operate.

[0038] For details, please refer to Figure 7 The multiple screw holes 7 are all evenly arranged in a circle with the central axis of the rotating rod 4 as the center.

[0039] In this embodiment, the fastening bolts 9 on the turntable 8 can be threaded into any one of the screw holes 7.

[0040] Working principle: In use, first rotate the fastening bolt 9 so that its bottom end disengages from the inner cavity of one of the screw holes 7, thereby releasing the fixation between the turntable 8 and the servo valve tester body 1. At this time, pull the sling 6 to release it completely from the take-up drum 5 and hang the sling 6 around the neck. Then, place the support slope 20 at the bottom of the servo valve tester body 1 against a suitable position on the abdomen. This position facilitates the operation of the device by the testing personnel. Then, rotate the turntable 8 to drive the rotating rod 4 and the take-up drum 5 to rotate. The take-up drum 5 rewinds the excess length of the sling 6 so that the sling 6 just hangs the servo valve tester body 1. After winding the instrument to the appropriate position on the abdomen, rotate the fastening bolt 9 to re-thread the bottom end into a screw hole 7, thereby fixing the turntable 8, rotating rod 4, and winding drum 5. Then, pull the strap 13 around the back of the waist, so that the end of the strap 13 passes through the loop seat 12, and use the male Velcro 14 and female Velcro 15 on the strap 13 to fix the strap 13 at this time. The bottom end of the servo valve tester body 1 is fixed to the abdomen by the strap 13, loop seat 12, and connecting strap 11. Finally, connect the plug end on the test connection line 19 to the servo valve to test the servo valve.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A servo valve testing device comprising a servo valve tester body (1), characterized by: The side of the servo valve tester body (1) is provided with an abdominal harness mechanism (2), the inside of one side of the servo valve tester body (1) is provided with a winding groove (3), the inner cavity of the winding groove (3) is rotatably connected with a rotating rod (4), the outer side of the rotating rod (4) is fixedly sleeved with a winding drum (5), the outer side of the winding drum (5) is wound with a sling (6), one end of the sling (6) extends to the outside of the servo valve tester body (1) and is connected with the other side of the servo valve tester body (1), a plurality of screw holes (7) are formed in the top surface of the servo valve tester body (1), the top end of the rotating rod (4) extends to the top of the servo valve tester body (1) and is fixedly connected with a rotating disc (8), the rotating disc (8) is threadedly sleeved with a fastening bolt (9), and the bottom end of the fastening bolt (9) is threadedly sleeved into the inner cavity of one screw hole (7).

2. A servo valve testing apparatus as claimed in claim 1, wherein: The abdominal harness mechanism (2) comprises rotating seats (10) rotatably connected to the lower parts of the two sides of the servo valve tester body (1) respectively, one rotating seat (10) is fixedly connected with a connecting belt (11), the end of the connecting belt (11) is fixedly connected with a winding ring seat (12), the other rotating seat (10) is fixedly connected with a binding belt (13), the upper part of one end of the binding belt (13) is fixedly connected with a sub magic tape (14), and the lower part of the binding belt (13) is fixedly connected with a mother magic tape (15).

3. A servo valve testing apparatus as claimed in claim 1, wherein: The front surface of the servo valve tester body (1) is provided with a control button (18), and the front surface of the servo valve tester body (1) is provided with a display screen (17).

4. The servo valve testing apparatus of claim 1, wherein: The top of the servo valve tester body (1) is provided with a test connecting line (19), and the two sides of the servo valve tester body (1) are respectively fixedly installed with handles (16).

5. The servo valve testing apparatus of claim 1, wherein: The bottom end of the servo valve tester body (1) is provided with a supporting inclined plane (20).

6. A servo valve testing apparatus as claimed in claim 1, wherein: The plurality of screw holes (7) are evenly arranged in a circle with the central axis of the rotating rod (4) as the center.

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