Pneumatic valve spring stretching detection device

Abstract

The utility model relates to the technical field of pneumatic valve spring stretching detection, in particular to a pneumatic valve spring stretching detection device which comprises a bottom plate, a frame plate is installed on the bottom plate, one side of the frame plate is connected with an adjusting frame, a stretching frame is movably connected in the adjusting frame, one side of the adjusting frame is provided with a first wind-up roller, and the first wind-up roller is provided with a second wind-up roller. A first winding roller is installed on one side of the frame plate, a first pull rope is connected to the first winding roller, a fixing frame is installed on the other side of the frame plate, an adjusting shell is movably connected into the fixing frame, a second winding roller is installed in the adjusting shell, and a second pull rope is connected to the second winding roller. According to the scheme, the possibility that only a single-state test can be carried out when the spring is detected is reduced, the possibility that the operation is complicated during the test is reduced, the possibility of multifunctional stretching detection of the device is improved, the spring stretching is detected from multiple states, the effect that the device is convenient to adjust is also improved, and the disassembly and the connection are very convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic valve spring stretching detection, in particular to a pneumatic valve spring stretching detection device. Background Technique

[0002] The stretching detection of pneumatic valve springs is an important means to ensure their quality and performance. Through strict detection steps and standard requirements, it can be ensured that pneumatic valve springs have good mechanical properties and stability during the stretching process. Therefore, a pneumatic valve spring stretching detection device is needed.

[0003] The Chinese patent with the patent publication number CN220568535U discloses a tensile force detection device for torsion bar springs. The device stretches the spring through a pulling cylinder, and the moving device can facilitate the left-right movement during the stretching process. The device has a simple structure and is easy to operate, and can directly perform stretching detection on the horizontal direction of the spring. However, this device can only complete the stretching test on the horizontal direction of the spring during detection, and the spring is also prone to deformation due to the stretching of lateral forces during actual application. Therefore, a pneumatic valve spring stretching detection device is proposed. Summary of the Invention

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and to propose a pneumatic valve spring stretching detection device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A pneumatic valve spring stretching detection device, including a bottom plate, a frame plate is installed on the bottom plate, one side of the frame plate is connected with an adjusting frame, a stretching frame is movably connected inside the adjusting frame, a first winding roller is arranged on one side of the adjusting frame, a first pulling rope is connected to the first winding roller, a fixing frame is installed on the other side of the frame plate, an adjusting shell is movably connected inside the fixing frame, a second winding roller is installed inside the adjusting shell, and a second pulling rope is connected to the second winding roller.

[0007] Preferably, a rotating shaft is installed on one side of the frame plate, the bottom end of the adjusting frame is connected to the outside of the rotating shaft, two positioning insertion rods are symmetrically installed on both sides of the adjusting frame, the positioning insertion rods are spring-connected inside the adjusting frame, insertion holes are opened on the top surface and the side wall surface of the frame plate, and the bottom end of the positioning insertion rod is connected to the insertion hole.

[0008] Preferably, a support bar is fixedly installed on one side of the top end of the adjusting frame. The support bar is connected to the bottom plate. A fixing piece is installed on one side of the bottom end of the adjusting frame. Two sliding rods are welded and installed inside the adjusting frame. The bottom end of the stretching frame is slidably connected to the outer surface of the sliding rod. Sliding grooves are formed on both sides of the adjusting frame. A lead screw is connected inside the sliding groove. One end of each lead screw is connected to the stretching frame. Two groups of clamping pieces are also movably connected to the stretching frame. The top end of the clamping piece is slidably connected inside the stretching frame. The bottom end of the clamping piece is threadedly connected to the lead screw. The clamping piece is located outside the sliding groove and clamps on the adjusting frame.

[0009] Preferably, a connecting ring is correspondingly installed between the fixing piece and the stretching frame. A test spring is connected between the connecting rings. A fixing ring is installed on the other side of the stretching frame. The first winding roller is fixedly installed on the bottom plate. A rotating motor is connected to one side of the first winding roller. The other end of the first pulling rope is detachably connected to the fixing ring.

[0010] Preferably, the fixing frame is fixedly installed on the top surface of the frame plate. Adaptation grooves are symmetrically formed on the inner walls of both sides of the fixing frame. Outer rings are fixedly installed on both sides of the adjusting shell. The outer rings extend to the outside of the adaptation grooves and are threadedly connected with outer nuts. The outer nuts are connected to the outer surface of the fixing frame.

[0011] Preferably, one end of the second winding roller is rotatably connected to the inner wall of the adjusting shell. An extension rod is provided at the other end of the second winding roller. The extension rod is connected to the outer ring. A turning handle is fixed to the outer end of the extension rod. One end of the second pulling rope is detachably connected to the test spring.

[0012] The beneficial effects of the present utility model are as follows:

[0013] In this solution, the rotation of the first winding roller can perform a horizontal stretching test on the spring. The stretching frame facilitates stretching, and the cooperation with the lead screw can position the spring in the stretched state. The adjusting frame can adjust the position of the spring, and the cooperation with the second winding roller can perform a lateral force test on the spring.

[0014] This solution reduces the possibility of only performing a single-state test when detecting the spring, reduces the possibility of complex operation during the test, improves the possibility of multi-functional stretching detection of the device, detects the spring stretching from multiple states, also improves the effect of convenient adjustment of the device, and is very convenient for disassembly and connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a pneumatic valve spring stretching detection device proposed by the present utility model in a horizontal state;

[0016] Figure 2Schematic side view structure diagram of a pneumatic valve spring stretching detection device proposed by the present utility model in a horizontal state;

[0017] Figure 3 Schematic top view structure diagram of a pneumatic valve spring stretching detection device proposed by the present utility model in a horizontal state;

[0018] Figure 4 For Figure 3 Schematic structure diagram of part A in

[0019] Figure 5 Schematic structure diagram of a pneumatic valve spring stretching detection device proposed by the present utility model in a vertical state;

[0020] Figure 6 Schematic side view structure diagram of a pneumatic valve spring stretching detection device proposed by the present utility model in a vertical state;

[0021] Figure 7 Schematic structure diagram of the stretching frame part.

[0022] In the figure: 1, bottom plate; 2, frame plate; 3, adjusting frame; 4, first winding roller; 5, rotating motor; 6, stretching frame; 7, lead screw; 8, sliding rod; 9, positioning plug; 10, adjusting shell; 11, second winding roller; 12, external nut; 13, fixing frame; 14, turning handle; 15, fixing piece; 16, first pulling rope; 17, second pulling rope. Specific implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0024] Embodiment: Refer to Figures 1-7, A pneumatic valve spring stretching detection device, including a bottom plate 1, a frame plate 2 is installed on the bottom plate 1, one side of the frame plate 2 is connected with an adjusting frame 3, a stretching frame 6 is movably connected in the adjusting frame 3, a first winding roller 4 is arranged on one side of the adjusting frame 3, a first pulling rope 16 is connected to the first winding roller 4, a fixed frame 13 is installed on the other side of the frame plate 2, an adjusting shell 10 is movably connected in the fixed frame 13, a second winding roller 11 is installed in the adjusting shell 10, a second pulling rope 17 is connected to the second winding roller 11, a rotating shaft is installed on one side of the frame plate 2, and the bottom end of the adjusting frame 3 is connected to the outside of the rotating shaft to facilitate the switching between the horizontal and vertical states of the adjusting frame 3. Two positioning insertion rods 9 are symmetrically installed on both sides of the adjusting frame 3, the positioning insertion rods 9 are spring-connected in the adjusting frame 3, insertion holes are opened on the top surface and side wall surface of the frame plate 2, and the bottom end of the positioning insertion rod 9 is connected in the insertion hole to position the horizontal and vertical states of the adjusting frame 3. A stretching monitor is also installed in the frame plate 2 to record the deformation length of the test spring, and the stretching monitor is located on the bottom side of the second pulling rope 17.

[0025] Specifically, a support bar is fixedly installed on one side of the top end of the adjusting frame 3, and the support bar is connected to the bottom plate 1 to support the adjusting frame 3 in the horizontal state. A fixing piece 15 is installed on one side of the bottom end of the adjusting frame 3 to connect one end of the test spring. Two sliding rods 8 are welded and installed in the adjusting frame 3, scales are set on the sliding rods 8, and the bottom end of the stretching frame 6 is slidably connected to the outer surface of the sliding rods 8 to achieve a stable movement effect. Sliding grooves are opened on both sides of the adjusting frame 3 to adjust the position of the stretching frame 6. A lead screw 7 is movably connected in the sliding groove, one end of the lead screw 7 is connected to the stretching frame 6 to achieve a positioning effect. Two groups of clamping pieces are also movably connected to the stretching frame 6 to clamp the adjusting frame 3 to achieve a positioning effect. The top end of the clamping piece is slidably connected in the stretching frame 6 to play a limiting role to avoid self-rotation. The bottom end of the clamping piece is threadedly connected to the lead screw 7 for easy adjustment. The clamping piece is located outside the sliding groove and clamps the adjusting frame 3.

[0026] Furthermore, connection rings are correspondingly installed between the fixing piece 15 and the stretching frame 6, a test spring is connected between the connection rings, a fixing ring is installed on the other side of the stretching frame 6 to facilitate pulling the rope pulling frame, a tension detector can be connected between the connection ring and the first pulling rope 16, the first winding roller 4 is fixedly installed on the bottom plate 1, a rotating motor 5 is connected to one side of the first winding roller 4, and the other end of the first pulling rope 16 is detachably connected to the fixing ring to facilitate disconnection when the adjusting frame 3 is vertical.

[0027] In this embodiment, the fixing frame 13 is fixedly installed on the top surface of the shelf board 2. Adaptation grooves are symmetrically formed on the inner walls on both sides of the fixing frame 13 for adjusting the up and down position of the adjusting shell 10. Outer rings are fixedly installed on both sides of the adjusting shell 10. The outer rings extend to the outside of the adaptation grooves, and external nuts 12 are threadedly connected thereto. The external nuts 12 are connected to the outer surface of the fixing frame 13 for positioning the position of the adjusting shell 10. One end of the second winding roller 11 is rotatably connected to the inner wall of the adjusting shell 10. An extension rod is provided at the other end of the second winding roller 11. The extension rod is connected to the inside of the outer ring, and the two are rotatably connected. A turning handle 14 is fixed to the outer end of the extension rod. One end of the second pulling rope 17 is detachably connected to the test spring for horizontally stretching the test spring.

[0028] Working principle: Connect the two ends of the test spring between the fixing piece 15 and the connecting ring of the stretching frame 6 respectively. At this time, the test spring is in a natural state and can be recorded according to the scale on the sliding rod 8. Then rotate the lead screw 7 to fix the position of the stretching frame 6. Pull out the positioning insertion rod 9 outward. At this time, the position of the adjusting frame 3 can be rotated. When the adjusting frame 3 moves to the vertical state, release the positioning insertion rod 9. At this time, connect one end of the second pulling rope 17 to the test spring, and then rotate the turning handle 14. The test spring will be stretched horizontally. The stretching monitor can measure and record the stretched length.

[0029] After the stretching is completed, detach the second pulling rope 17, then restore the adjusting frame 3 to the horizontal state, and then connect one end of the first pulling rope 16 to the stretching frame 6. Control the rotation of the rotating motor 5, and the first winding roller 4 winds the first pulling rope 16. During the winding process, the stretching frame 6 will be pulled, and the test spring will be stretched. After the stretching, the data can be recorded to achieve the stretching test in the horizontal direction, and the test data can be recorded. Then rotate the lead screw 7 again to fix the stretching frame 6 on the adjusting frame 3, then pull up the positioning insertion rod 9 again to rotate the adjusting frame 3, put the second pulling rope 17 on the test spring in the stretched state, and rotate the turning handle 14 again to horizontally pull the test spring, and record according to the deformation state. After the end, the test data can be compared.

[0030] The content not detailed in this specification belongs to the prior art well-known to those skilled in the art.

[0031] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0032] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. A pneumatic valve spring tension detection device, characterized in that: include: A bottom plate (1) is provided with a frame plate (2) mounted on the bottom plate (1), an adjustment frame (3) is connected to one side of the frame plate (2), a stretching frame (6) is movably connected to the adjustment frame (3), a first winding roller (4) is provided on one side of the adjustment frame (3), a first pull rope (16) is connected to the first winding roller (4), a fixed frame (13) is installed on the other side of the frame plate (2), an adjustment shell (10) is movably connected to the fixed frame (13), a second winding roller (11) is installed in the adjustment shell (10), and a second pull rope (17) is connected to the second winding roller (11).

2. A pneumatic valve spring stretch detection device according to claim 1, characterized in that: A rotating shaft is installed on one side of the frame plate (2), the bottom end of the adjustment frame (3) is connected to the outside of the rotating shaft, two positioning rods (9) are symmetrically installed on both sides of the adjustment frame (3), the positioning rods (9) are spring-connected in the adjustment frame (3), and the top surface and side wall surface of the frame plate (2) are provided with insertion holes, and the bottom ends of the positioning rods (9) are connected in the insertion holes.

3. A pneumatic valve spring stretch detection device according to claim 2, characterized in that: A support bar is fixedly installed on one side of the top end of the adjustment frame (3), and the support bar is connected to the bottom plate (1). A fixing plate (15) is installed on one side of the bottom end of the adjustment frame (3). Two sliding rods (8) are welded and installed in the adjustment frame (3). The bottom end of the stretching frame (6) is slidably connected to the outer surface of the sliding rod (8). Sliding grooves are opened on both sides of the adjustment frame (3). Screw rods (7) are connected in the sliding grooves. One end of the screw rods (7) is connected to the stretching frame (6). Two groups of clamping plates are also movably connected to the stretching frame (6). The top end of the clamping plate is slidably connected to the stretching frame (6), and the bottom end of the clamping plate is threadedly connected to the screw rod (7). The clamping plate is located on the outside of the sliding groove and is clamped on the adjustment frame (3).

4. A pneumatic valve spring stretch detection device according to claim 3, characterized in that: Connecting rings are correspondingly installed between the fixing plate (15) and the stretching frame (6), a test spring is connected between the connecting rings, a fixing ring is installed on the other side of the stretching frame (6), the first winding roller (4) is fixedly installed on the bottom plate (1), one side of the first winding roller (4) is connected to a rotating motor (5), and the other end of the first pull rope (16) is detachably connected to the fixing ring.

5. A pneumatic valve spring stretch detection device according to claim 4, characterized in that: The fixing frame (13) is fixedly mounted on the top surface of the frame plate (2), and the inner walls on both sides of the fixing frame (13) are symmetrically provided with adapting grooves. The outer rings are fixedly mounted on both sides of the adjusting shell (10), and the outer rings extend to the outside of the adapting grooves and are threadedly connected with outer nuts (12). The outer nuts (12) are connected to the outer surface of the fixing frame (13).

6. A pneumatic valve spring stretch detection device according to claim 5, characterized in that: One end of the second winding roller (11) is rotatably connected to the inner wall of the adjustment shell (10), and an extension rod is provided on the other end of the second winding roller (11), the extension rod is connected inside the outer ring, and a turning handle (14) is fixed to the outer end of the extension rod, and one end of the second pull rope (17) is detachably connected to the test spring.

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