Scroll Spring Assembling Machine for Valve Control Structure

By designing a valve-controlled structure worm spring assembly machine, using a sector-shaped clamp and worm gear system, the problem of difficult installation of worm springs in the lower spring cylinder is solved, and efficient worm spring installation and transmission efficiency is achieved.

CN119635257BActive Publication Date: 2025-07-04TIANJIN BAICHENG VALVE MFG CO LTD BINHAI NEW AREA DESIGN BRANCH
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Patent Information

Application Number
CN202510176723.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2025-07-04
Estimated Expiration
2045-02-18

AI Technical Summary

Technical Problem

In the prior art, it is difficult to install the worm spring smoothly in the lower spring cylinder, especially in the environment of frequent rotating valve stems, resulting in a high failure rate of spring rotary accumulator and low transmission efficiency.

Method used

A valve-controlled structure worm spring assembly machine is designed. By setting a sector-shaped clamp and a central shaft, the center position of the worm spring is stuck in the chuck, and combining the worm gear and transmission ring system to realize the compression and installation of the worm spring.

Benefits of technology

The worm coil spring is successfully installed in the lower spring cylinder, reducing the failure rate, improving the transmission efficiency, making it easy to operate and adapt to different sizes of worm coil springs.

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Abstract

This application relates to the technical field of valve production, in particular to a volute spring assembly machine for a valve control structure, which includes a base. An operation panel is arranged on the base, and a plurality of chutes facing the center of the operation panel are opened on the operation panel. A slider is slidably connected in the chute. A sector-shaped clamping block is fixedly connected above the slider. A sector-shaped groove is opened on the upper surface of the sector-shaped clamping block, and a complete circle can be formed by combining a plurality of sector-shaped clamping blocks. The volute spring is arranged in the sector-shaped groove. A central groove is opened at the central position of the base, and a central shaft is arranged in the central groove. The central shaft can rotate in the central groove, and a clamping groove is opened at the upper end of the central shaft. The central position of the volute spring is stuck in the clamping groove, achieving the effect that the volute spring can be smoothly installed in the lower spring cylinder body.
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Description

Technical Field

[0001] This application relates to the technical field of valve production, especially to a volute spring assembly machine for valve control structures. Background Art

[0002] The patent with the publication number CN118224375A and the name "Valve Structure with High-Performance Spring Rotary Energy Accumulator" discloses a valve structure with a high-performance spring rotary energy accumulator, including an output transmission shaft for connecting with a valve stem used in cooperation with a spring rotary energy accumulator, and also including an upper spring cylinder body, a lower spring cylinder body, and a volute spring. The upper spring cylinder body and the lower spring cylinder body are buckled with each other to form a sealed cavity. One end of the output transmission shaft penetrates through the upper spring cylinder body, and the other end penetrates through the lower spring cylinder body; the volute spring is located in the cavity and sleeved on the output transmission shaft. One end of the volute spring is inserted and connected with the output transmission shaft, and a limiting member for locking the end of the volute spring is arranged between the other end and the lower spring cylinder body; a position-adjusting assembly for changing the initial winding posture of the volute spring is arranged on the lower spring cylinder body. This application has the effects of reducing the failure rate of the spring rotary energy accumulator and improving the transmission efficiency of the spring rotary energy accumulator in the usage environment where the valve stem rotates frequently.

[0003] When installing the volute spring into the lower spring cylinder body, the volute spring needs to be in a contracted state. Therefore, a contracting force needs to be applied to the spring during installation, and it is very difficult to complete the operation manually. Therefore, a device for installing the volute spring into the lower spring cylinder body is needed now. Summary of the Invention

[0004] This application provides a volute spring assembly machine for valve control structures in order to enable the volute spring to be smoothly installed into the lower spring cylinder body.

[0005] The above technical objectives of this application are achieved through the following technical solutions:

[0006] A volute spring assembly machine for valve control structures includes a base. An operation panel is arranged on the base. A plurality of chutes facing the center of the operation panel are opened on the operation panel, and sliders are slidably connected in the chutes. A sector-shaped clamping block is fixedly connected above the sliders. A sector-shaped groove is opened on the upper surface of the sector-shaped clamping block, and a complete circle can be formed by combining a plurality of sector-shaped clamping blocks. The volute spring is arranged in the sector-shaped groove. A central groove is opened at the central position of the base, and a central shaft is arranged in the central groove and can rotate in the central groove. A clamping groove is opened at the upper end of the central shaft, and the central position of the volute spring is clamped in the clamping groove.

[0007] By adopting the above scheme, when the volute spring needs to be installed in the cylinder, the volute spring is placed in the fan-shaped groove, and the center of the volute spring is clamped in the clamping groove. Then the operator drives the central shaft to rotate, so that the volute spring curls toward the center position. At the same time, the slider slides in the slide groove, driving the fan-shaped clamping blocks to approach each other, thereby compressing the volute spring until the volute spring can be installed in the lower spring cylinder body. Then the lower spring cylinder body is put on the top of the volute spring, and then the fan-shaped clamping block is slowly opened to clamp the volute spring in the lower spring cylinder body, so that the volute spring can be smoothly installed in the lower spring cylinder body.

[0008] Optionally, a transmission cavity is opened in the operating disk, the transmission cavity is connected with the slide groove, a transmission ring is rotatably connected in the transmission cavity, the axis of the transmission ring is the same as the axis of the central axis, a spiral groove is arranged on the surface of one side of the transmission ring, a convex tooth is arranged on the lower surface of the slider, the convex tooth is meshed with the spiral groove, when the transmission ring rotates, the slider slides along the slide groove, bevel teeth are fixedly arranged on the side of the transmission ring away from the spiral groove, the bevel teeth are meshed with a first bevel gear, the first bevel gear is fixedly connected with a first wheel rod, and the first wheel rod is rotatably connected to the operating disk.

[0009] By adopting the above scheme, the first wheel rod is rotated, and the first wheel rod drives the first bevel gear to rotate, thereby driving the transmission ring to rotate. The transmission ring simultaneously drives multiple sliders to move along the slide groove, thereby driving multiple fan-shaped clamping blocks to approach or move away from each other, thereby achieving the clamping or loosening of the volute spring.

[0010] Optionally, one end of the first wheel rod facing away from the transmission ring is fixedly connected with a hand wheel.

[0011] By adopting the above solution, the operator can more conveniently rotate the first wheel rod, thereby more conveniently installing the spiral spring into the cylinder.

[0012] Optionally, a drive shaft is rotatably connected in the central groove, the drive shaft is connected to the central shaft, and a worm wheel is fixedly connected to the outer side of the drive shaft, and the worm wheel is meshed with a worm.

[0013] By adopting the above scheme, the operator can drive the worm wheel to rotate by rotating the worm, thereby driving the drive shaft to rotate, and the drive shaft drives the central shaft to rotate. The worm wheel has a deceleration effect, so that the operator uses less force to rotate the central shaft, and the worm wheel has a self-locking structure to prevent the volute spring from rebounding and driving the central shaft to rotate.

[0014] Optionally, the first wheel rod is fixedly connected to the second bevel gear, the second bevel gear is meshed with the third bevel gear, the third bevel gear is fixedly connected to the second wheel rod, the second wheel rod is fixedly connected to the first spur gear at one end facing away from the third bevel gear, the first spur gear is meshed with the second spur gear, and the second spur gear is fixedly connected to the worm gear.

[0015] By adopting the above scheme, the operator rotates the first wheel rod to drive the second bevel gear to rotate, thereby driving the third bevel gear and the second wheel rod to rotate. The second wheel rod drives the worm to rotate through the first spur gear and the second spur gear. The worm drives the worm wheel and the drive shaft to rotate, thereby driving the center shaft to rotate, so that the operator can operate the arc clamp and the center shaft movement at the same time, so that the volute spring can be smoothly installed in the lower spring cylinder.

[0016] Optionally, an insertion groove is provided at one end of the driving shaft, and an insertion rod is fixedly connected to the end of the central shaft away from the slot, and the insertion rod is inserted into the insertion groove. When the insertion rod is inserted into the insertion groove, the driving shaft and the central shaft can only slide relative to each other.

[0017] By adopting the above solution, the driving rod and the central shaft can be separated, so that the spiral spring can be more conveniently clamped in the clamping groove.

[0018] Optionally, the fan-shaped groove includes a primary groove and a secondary groove, the diameter of the primary groove is larger than the diameter of the secondary groove, and the centers of the primary groove and the secondary groove are the same.

[0019] By adopting the above solution, the assembling machine can assemble spiral springs of different sizes.

[0020] In summary, this application has the following technical effects:

[0021] 1. By setting up the fan-shaped clamp block and the center shaft, the center position of the volute spring is clamped in the clamping groove. The rotation of the center shaft drives the center of the volute spring to shrink. At the same time, the fan-shaped clamp block shrinks the edge of the volute spring, thereby tightening the volute spring, so that the volute spring can be smoothly installed in the lower spring cylinder;

[0022] 2. The hand wheel is provided so that the operator can turn the first wheel lever more smoothly, thereby driving the spiral spring to contract more smoothly;

[0023] 3. The worm wheel and worm are arranged to drive the driving shaft to rotate, thereby driving the central shaft to rotate, and then driving the center of the spiral spring to contract. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of this application;

[0025] Figure 2 It is a schematic diagram of the overall structure of this application from another perspective;

[0026] Figure 3 This is a partial structural cutaway diagram intended to emphasize the internal structure of the transmission cavity in this application;

[0027] Figure 4 This is a partial structural diagram of the second wheel rod that this application intends to emphasize;

[0028] Figure 5 is an exploded view of a partial structure at the connection between the central shaft and the drive shaft, which is intended to be emphasized in this application;

[0029] Figure 6 is a schematic diagram of a partial structure after the scroll spring is installed in the cylinder.

[0030] In the figure, 1 is the base; 2 is the operation panel; 21 is the chute; 22 is the central groove; 23 is the transmission cavity; 3 is the sector clamp; 31 is the slider; 311 is the convex tooth; 32 is the sector groove; 4 is the central shaft; 41 is the card slot; 42 is the insertion rod; 5 is the transmission ring; 51 is the spiral groove; 6 is the first round rod; 61 is the first bevel gear; 62 is the handwheel; 63 is the second bevel gear; 7 is the second round rod; 71 is the third bevel gear; 72 is the first spur gear; 8 is the worm; 81 is the second spur gear; 9 is the drive shaft; 91 is the worm gear; 92 is the insertion slot; 10 is the scroll spring; 101 is the lower spring cylinder. Specific embodiments

[0031] The following further describes this application in detail with reference to the accompanying drawings.

[0032] Referring to Figure 1 and Figure 2 , the scroll spring 10 assembly machine for the valve control structure includes a base 1, an operation panel 2 is arranged on the base 1, a plurality of chutes 21 facing the center of the operation panel 2 are opened on the operation panel 2, and a slider 31 is slidably connected in the chute 21. A sector clamp 3 is fixedly connected above the slider 31. A sector groove 32 is opened on the upper surface of the sector clamp 3, and a plurality of sector clamps 3 can be combined to form a complete circle. The scroll spring 10 is arranged in the sector groove 32. A central groove 22 is opened at the center position of the base 1, a central shaft 4 is arranged in the central groove 22, the central shaft 4 can rotate in the central groove 22, and a card slot 41 is opened at the upper end of the central shaft 4. The center position of the scroll spring 10 is stuck in the card slot 41. When the scroll spring 10 needs to be installed in the cylinder, the scroll spring 10 is placed in the sector groove 32, and at the same time, the center of the scroll spring 10 is stuck in the card slot 41. Then, the operator drives the central shaft 4 to rotate, so that the scroll spring 10 curls towards the center position. At the same time, the slider 31 slides in the chute 21, driving the sector clamps 3 to approach each other, thereby compressing the scroll spring 10 until the scroll spring 10 can be installed in the lower spring cylinder 101. Then, the lower spring cylinder 101 is sleeved above the scroll spring 10, and then the sector clamps 3 slowly open, so that the scroll spring 10 is stuck in the lower spring cylinder 101, so that the scroll spring 10 can be successfully installed in the lower spring cylinder 101.

[0033] Referring to Figure 2 and Figure 3A transmission chamber 23 is provided in the operating disk 2, and the transmission chamber 23 is communicated with the slide groove 21. A transmission ring 5 is rotatably connected in the transmission chamber 23. The axis of the transmission ring 5 is the same as the axis of the central axis 4. A spiral groove 51 is provided on one side surface of the transmission ring 5. A convex tooth 311 is provided on the lower surface of the slider 31. The convex tooth 311 meshes with the spiral groove 51. When the transmission ring 5 rotates, the slider 31 slides along the slide groove 21. A bevel tooth is fixedly provided on the side of the transmission ring 5 away from the spiral groove 51. The bevel tooth meshes with a first bevel gear 61. The first bevel gear 61 is fixedly connected to a first wheel rod 6. The first wheel rod 6 is rotatably connected to the operating disk 2, and a hand wheel 62 is fixedly connected to the end of the first wheel rod 6 away from the transmission ring 5. The operator rotates the retracting wheel, thereby driving the first wheel rod 6 to rotate, and the first wheel rod 6 drives the first bevel gear 61 to rotate, thereby driving the transmission ring 5 to rotate, and the transmission ring 5 simultaneously drives multiple sliders 31 to move along the slide groove 21, thereby driving multiple fan-shaped clamping blocks 3 to move closer to or away from each other, thereby achieving the clamping or loosening of the spiral spring 10.

[0034] Reference Figure 4 and Figure 5 The driving shaft 9 is rotatably connected in the center groove 22, and the transmission cavity 23 is connected with the center groove 22. An insertion groove 92 is provided at one end of the driving shaft 9. The driving shaft 9 is a circular groove with a rectangular groove around it. An insertion rod 42 is fixedly connected at one end of the center shaft 4 away from the card groove 41. The shape of the insertion rod 42 is the same as that of the insertion groove 92. The insertion rod 42 is inserted into the insertion groove 92. When the insertion rod 42 is inserted into the insertion groove 92, the driving shaft 9 and the center shaft 4 can only slide relative to each other. The driving shaft 9 is connected to the center shaft 4, and a worm wheel 91 is fixedly connected to the outside of the driving shaft 9. The worm wheel 91 is meshed with a worm 8. The operator can drive the worm wheel 91 to rotate by rotating the worm 8, thereby driving the driving shaft 9 to rotate, and the driving shaft 9 drives the center shaft 4 to rotate, and the worm wheel 91 and the worm 8 have a deceleration effect, so that the operator uses less force to rotate the center shaft 4, and the worm wheel 91 and the worm 8 have a self-locking structure, which can jam the spiral spring 10 to prevent the spiral spring 10 from rebounding and driving the center shaft 4 to rotate.

[0035] Reference Figure 3 and Figure 4The first wheel rod 6 is fixedly connected with the second bevel gear 63, the second bevel gear 63 is meshed with the third bevel gear 71, the third bevel gear 71 is fixedly connected with the second wheel rod 7, the second wheel rod 7 is fixedly connected with the first spur gear 72 at one end away from the third bevel gear 71, the first spur gear 72 is meshed with the second spur gear 81, and the second spur gear 81 is fixedly connected with the worm 8. The operator rotates the first wheel rod 6 to drive the second bevel gear 63 to rotate, thereby driving the third bevel gear 71 and the second wheel rod 7 to rotate, the second wheel rod 7 drives the worm 8 to rotate through the first spur gear 72 and the second spur gear 81, the worm 8 drives the worm wheel 91 and the drive shaft 9 to rotate, thereby driving the central shaft 4 to rotate, so that the operator can operate the arc clamp and the central shaft 4 to move at the same time, so that the spiral spring 10 can be smoothly installed in the lower spring cylinder 101.

[0036] Reference Figure 1 and Figure 2 The fan-shaped groove 32 includes a primary groove and a secondary groove, the diameter of the primary groove is greater than the diameter of the secondary groove, and the centers of the primary groove and the secondary groove are the same. The assembly machine is used to assemble the spiral springs 10 of different sizes.

[0037] The specific implementation principle of the present application is: when the volute spring 10 needs to be installed in the cylinder, the volute spring 10 is placed in the fan-shaped groove 32, and the center position of the volute spring 10 is inserted into the slot 41. Then the operator rotates the hand wheel 62 to drive the first wheel rod 6 to rotate, the first wheel rod 6 drives the first bevel gear 61 to rotate, and the first bevel gear 61 drives the transmission ring 5 to rotate, thereby driving the fan-shaped clamping blocks 3 to approach each other, thereby compressing the end of the volute spring 10. At the same time, the first wheel rod 6 drives the second bevel gear 63 to rotate, thereby driving the third bevel gear 71 to rotate, the third bevel gear 71 drives the second wheel rod 7 and the first gear to rotate, thereby driving the second spur gear 81 to rotate, thereby driving the worm 8 to rotate, the worm 8 drives the worm wheel 91 and the drive shaft 9 to rotate, the drive shaft 9 drives the central shaft 4 to rotate, the central shaft 4 reels the center position of the volute spring 10, so that the volute spring 10 shrinks to the point where it can be loaded into the lower spring cylinder, and then the lower spring cylinder body 101 is covered over the volute spring 10, and the retracting wheel is rotated in the opposite direction to make the fan-shaped clamp 3 loosen the volute spring 10, thereby realizing the loading of the volute spring 10 into the lower spring cylinder body 101.

[0038] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. Valve control structure scroll spring assembly machine, characterized in that: The invention comprises a base (1), an operating panel (2) is arranged on the base (1), a plurality of slide grooves (21) are arranged on the operating panel (2) and are oriented toward the center of the operating panel (2), a slider (31) is slidably connected in the slide groove (21), a fan-shaped clamping block (3) is fixedly connected above the slider (31), a fan-shaped groove (32) is arranged on the upper surface of the fan-shaped clamping block (3), and a plurality of fan-shaped clamping blocks (3) can be combined to form a complete circle, a spiral spring (10) is arranged in the fan-shaped groove (32), a center groove (22) is arranged at the center position of the base (1), a center shaft (4) is arranged in the center groove (22), the center shaft (4) can rotate in the center groove (22), a clamping groove (41) is arranged at the upper end of the center shaft (4), and the center position of the spiral spring (10) is clamped in the clamping groove (41); The operating disk (2) is provided with a transmission cavity (23), the transmission cavity (23) is communicated with the slide groove (21), a transmission ring (5) is rotatably connected in the transmission cavity (23), the axis of the transmission ring (5) is the same as the axis of the central axis (4), a spiral groove (51) is provided on one side surface of the transmission ring (5), a convex tooth (311) is provided on the lower surface of the slider (31), the convex tooth (311) is meshed with the spiral groove (51), when the transmission ring (5) rotates, the slider (31) slides along the slide groove (21), a bevel tooth is fixedly provided on the side of the transmission ring (5) away from the spiral groove (51), the bevel tooth is meshed with a first bevel gear (61), the first bevel gear (61) is fixedly connected with a first wheel rod (6), and the first wheel rod (6) is rotatably connected to the operating disk (2); A drive shaft (9) is rotatably connected in the central groove (22), the drive shaft (9) is connected to the central shaft (4), and a worm wheel (91) is fixedly connected to the outside of the drive shaft (9), and the worm wheel (91) is meshed with a worm (8); The first wheel rod (6) is fixedly connected to a second bevel gear (63), the second bevel gear (63) is meshed with a third bevel gear (71), the third bevel gear (71) is fixedly connected to a second wheel rod (7), an end of the second wheel rod (7) away from the third bevel gear (71) is fixedly connected to a first spur gear (72), the first spur gear (72) is meshed with a second spur gear (81), and the second spur gear (81) is fixedly connected to the worm (8).

2. The scroll spring assembling machine for the valve control structure according to claim 1, characterized in that: One end of the first wheel rod (6) facing away from the transmission ring (5) is fixedly connected to a hand-turned wheel (62).

3. The scroll spring assembly machine for the valve control structure according to claim 1, characterized in that: An insertion groove (92) is formed at one end of the driving shaft (9); an insertion rod (42) is fixedly connected to one end of the central shaft (4) away from the clamping groove (41); the insertion rod (42) is inserted into the insertion groove (92); when the insertion rod (42) is inserted into the insertion groove (92), the driving shaft (9) and the central shaft (4) can only slide relative to each other.

4. The scroll spring assembling machine for the valve control structure according to claim 1, characterized in that: The fan-shaped groove (32) comprises a primary groove and a secondary groove, the diameter of the primary groove is larger than the diameter of the secondary groove, and the centers of the primary groove and the secondary groove are the same.

Citation Information

Patent Citations

  • Valve structure with high-performance spring rotation energy accumulator

    CN118224375A

  • Efficient assembling device and method for aero-engine spring assembly

    CN115723091A

  • Clamping device for precision forging production

    CN208945086U