Gear speed change mechanism of wire feeder

Abstract

The utility model provides a gear speed change mechanism of a wire feeder, and belongs to the technical field of wire feeders. The problem that resources are wasted due to the fact that a large horse pulls a small cart during conveying of an existing common feeding pipe is solved. The transmission comprises a machine frame, an input shaft, an output shaft and a speed regulating clutch, the input shaft and the output shaft are both rotationally connected to the machine frame, the input shaft is fixedly sleeved with an input large gear and an input small gear at intervals, and the output shaft is rotationally sleeved with an output small gear and an output large gear at intervals. The large input gear is in meshing transmission with the small output gear, the small input gear is in meshing transmission with the large output gear, a speed regulation section is arranged on the output shaft between the large output gear and the small output gear, and the speed regulation clutch is movably arranged on the speed regulation section and connected with the speed regulation section in a matched mode. The speed regulation clutch is connected with the output pinion and the output bull gear in a matched mode through a speed regulation section. The speed change device is mainly used for speed change of wire feeders.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire feeding machines, in particular to a gear speed changing mechanism of a wire feeding machine. Background Art

[0002] Due to the unique nature of metallurgical wire feeders feeding molten iron ladles, fixed-speed delivery is currently the most common method. A disadvantage of this fixed-speed method is the limited range of variability in the amount of molten iron delivered to the ladle, regulated by a frequency-modulated motor. Consequently, the drive motor required to add rare earth alloys to the molten iron with large volumetric fluctuations becomes larger, creating a situation where a large horse is pulling a small cart, wasting resources. Utility Model Content

[0003] In view of this, the utility model aims to propose a gear speed change mechanism for a wire feeding machine to solve the problem that the existing commonly used feeding pipe transportation has a big horse pulling a small cart, thereby causing waste of resources.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a wire feeding machine gear speed change mechanism, which includes a frame, an input shaft, an output shaft and a speed regulating clutch, the input shaft and the output shaft are both rotatably connected to the frame, the input shaft is fixedly sleeved with an input large gear and an input small gear, the output shaft is rotatably sleeved with an output small gear and an output large gear, the input large gear and the output small gear are meshed for transmission, the input small gear and the output large gear are meshed for transmission, a speed regulating section is provided on the output shaft between the output large gear and the output small gear, the speed regulating clutch is movably provided on the speed regulating section and cooperates with the speed regulating section, and the speed regulating clutch is cooperated with the output small gear and the output large gear through the speed regulating section.

[0005] Furthermore, three arc-shaped grooves are provided on the speed regulating section at intervals, and the speed regulating clutch is connected to the output shaft through the arc-shaped grooves of the speed regulating section. When the speed regulating clutch is respectively matched with the arc-shaped grooves at the left and right ends, the speed regulating clutch is respectively matched with the output gear and the output pinion. When the speed regulating clutch is matched with the arc-shaped groove at the middle position, the speed regulating clutch is respectively spaced apart from the output gear and the output pinion.

[0006] Furthermore, first engaging teeth are provided on both sides of the speed control clutch, and second engaging teeth that cooperate with the first engaging teeth are provided on the side of the output gearwheel and the output pinion close to the speed control clutch. The speed control clutch is respectively connected to the output gearwheel and the output pinion through the first engaging teeth on both sides.

[0007] Furthermore, the inner hole of the speed control clutch is evenly spaced along the circumferential direction with a plurality of ball screws, the fixed end of the ball screw is embedded in the side wall of the inner hole of the speed control clutch and is fixedly connected to the speed control clutch, and the ball end of the ball screw is against the speed control section of the output shaft and is connected in cooperation with the arc groove.

[0008] Furthermore, a cover plate is provided on the top of the frame, and a speed regulating through hole is opened on the cover plate.

[0009] Furthermore, a speed regulating handle is provided on the top of the cover plate, the speed regulating handle passes through the speed regulating through hole and slides with the speed regulating through hole, and the bottom end of the speed regulating handle contacts and cooperates with the speed regulating clutch.

[0010] Furthermore, the bottom end of the speed regulating handle is in contact with the speed regulating clutch.

[0011] Furthermore, a groove is provided on the outer side wall of the speed regulating clutch to match the bottom end of the speed regulating handle.

[0012] Furthermore, a return spring is provided between the speed regulating handle and the upper surface of the cover plate.

[0013] Furthermore, one end of the input shaft extends to the outside of the frame and is connected to a synchronous pulley, and one end of the output shaft extends to the outside of the frame and is connected to a sprocket.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model provides a wire feeding machine gear speed change mechanism, which realizes the speed regulation function of the mechanism through gear speed change. An acceleration gear train is provided in which the input large gear meshes with the output small gear, and a reduction gear train is provided in which the input small gear meshes with the output large gear. The speed regulating clutch is adjusted and connected with the corresponding gear train by using a speed regulating handle according to actual needs. This ensures that the wire feeding machine adds the rare earth alloy in an accurate weight to the steel ladle and reduces the user's power loss, thus significantly improving the situation where a large horse pulls a small cart.

[0016] 2. The utility model provides a gear speed change mechanism for a wire feeding machine, which has the functions of flexible positioning and convenient speed regulation. The speed regulating clutch is equipped with a bead wave screw and an arc-shaped groove of the output shaft adjustment section, so as to achieve the characteristics of flexible positioning and simple operation.

[0017] 3. A reset spring is provided between the speed regulating handle and the cover plate, so that after the speed regulating operation, the elastic force of the spring can reset the speed regulating handle to ensure that the conical head of the speed regulating handle does not rub against the speed regulating clutch, thereby avoiding noise pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a structural diagram of a gear speed change mechanism of a wire feeding machine according to the utility model;

[0020] Figure 2 This is a three-dimensional diagram of the structure of the gear speed change mechanism of a wire feeding machine described in the utility model;

[0021] Figure 3 This is a structural diagram of the output shaft in the gear speed change mechanism of a wire feeding machine described in the utility model;

[0022] Figure 4 The utility model is a structural schematic diagram of a ball screw in a gear speed change mechanism of a wire feeding machine.

[0023] 1-frame, 2-input shaft, 3-output shaft, 4-speed control clutch, 5-input large gear, 6-input small gear, 7-output small gear, 8-output large gear, 9-speed control section, 10-arc groove, 11-ball screw, 12-cover plate, 13-speed control handle, 14-reset spring, 15-synchronous pulley, 16-sprocket, 17-mounting plate, 18-feed wheel. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely explain the technical solutions in the embodiments of the present invention. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other in the absence of conflict, and the embodiments described are only part of the embodiments of the present invention, not all of the embodiments.

[0025] See also Figure 1-4The present embodiment describes a gear speed change mechanism of a wire feeding machine, which includes a frame 1, an input shaft 2, an output shaft 3 and a speed regulating clutch 4. The input shaft 2 and the output shaft 3 are both rotatably connected to the frame 1. An input large gear 5 and an input small gear 6 are fixedly sleeved on the input shaft 2. An output small gear 7 and an output large gear 8 are rotatably sleeved on the output shaft 3. The input large gear 5 is meshed with the output small gear 7 for transmission, and the input small gear 6 is meshed with the output large gear 8 for transmission. A speed regulating section 9 is provided on the output shaft 3 between the output large gear 8 and the output small gear 7. The speed regulating clutch 4 is movable. It is arranged on the speed regulating section 9 and is connected to the speed regulating section 9. The speed regulating clutch 4 is connected to the output pinion 7 and the output gear 8 through the speed regulating section 9. In this embodiment, the speed regulating function of the mechanism is realized by gear shifting. The input gear 5 is meshed with the output pinion 7 to transmit the acceleration gear train and the input pinion 6 is meshed with the output gear 8 to transmit the reduction gear train. By using the speed regulating clutch 4 to connect with the corresponding gear train according to actual needs, speed regulation can be achieved, which ensures that the wire feeding machine adds the rare earth alloy to the steel water ladle with accurate weight and can significantly improve the situation of the big horse pulling the small cart by reducing the user's power loss.

[0026] The output pinion 7 and the output gear 8 described in this embodiment are both rotationally connected to the output shaft 3. The output shaft 3 only restricts the movement of the output pinion 7 and the output gear 8 in the axial direction of the output shaft 3, and does not restrict the rotation of the output pinion 7 and the output gear 8 relative to the output shaft 3. Therefore, in the absence of the speed control clutch 4, the output pinion 7 and the output gear 8 are driven by the input gear 5 and the input pinion 6 respectively to idle, and cannot drive the output shaft 3 to rotate.

[0027] In this embodiment, three arc-shaped grooves 10 are provided on the speed regulating section 9 at intervals. The speed regulating clutch 4 is connected to the output shaft 3 through the arc-shaped grooves 10 of the speed regulating section 9. When the speed regulating clutch 4 is respectively matched with the arc-shaped grooves 10 at the left and right ends, the speed regulating clutch 4 is respectively matched with the output large gear 8 and the output small gear 7. When the speed regulating clutch 4 is matched with the arc-shaped groove 10 at the middle position, the speed regulating clutch 4 is respectively spaced apart from the output large gear 8 and the output small gear 7. 4 is evenly spaced along the circumferential direction with a plurality of ball screws 11, the fixed end of the ball screw 11 is embedded in the side wall of the inner hole of the speed control clutch 4 and is fixedly connected to the speed control clutch 4, the ball end of the ball screw 11 is against the speed control section 9 of the output shaft 3 and is connected in cooperation with the arc-shaped groove 10, when the ball end of the ball screw 11 in the speed control clutch 4 is embedded in the arc-shaped groove 10 of the speed control section 9, the speed control clutch 4 completes the clamping and fixing between the speed control clutch 4 and the output shaft 3, thereby realizing that the speed control clutch 4 can drive the output shaft 3 to rotate, as shown in FIG. Figure 1As shown, when the speed control clutch 4 is located in the circular arc groove 10 at the left end, the speed control clutch 4 is connected to the output gear 8 to achieve low-speed adjustment of the device. When the speed control clutch 4 is located in the circular arc groove 10 at the right end, the speed control clutch 4 is connected to the output pinion 7 to achieve high-speed adjustment of the device. When the speed control clutch 4 is located in the circular arc groove 10 in the middle, the speed control clutch 4 is in a separated state from the output pinion 7 and the output gear 8. At this time, the output shaft 3 does not rotate.

[0028] In this embodiment, the speed regulating sections 9 can be adjusted in number and position according to the number and setting positions of the ball screws 11 .

[0029] In this embodiment, both sides of the speed regulating clutch 4 are provided with first engaging teeth, and the output large gear 8 and the output small gear 7 are provided with second engaging teeth matching the first engaging teeth on the side close to the speed regulating clutch 4. The speed regulating clutch 4 is respectively connected to the output large gear 8 and the output small gear 7 through the first engaging teeth on both sides, and the speed regulating clutch 4 is connected to the output large gear 8 and the output small gear 7 by tooth embedding. The tooth profile is as follows: Figure 2 shown.

[0030] In this embodiment, the frame 1 is provided with a cover plate 12 on the top, which is provided with a speed regulating through hole. A speed regulating handle 13 is provided on the top of the cover plate 12. The speed regulating handle 13 passes through the speed regulating through hole and slides with the speed regulating through hole. The bottom end of the speed regulating handle 13 contacts and cooperates with the speed regulating clutch 4. The bottom end of the speed regulating handle 13 contacts and cooperates with the speed regulating clutch 4. The outer wall of the speed regulating clutch 4 is provided with a groove that cooperates with the bottom end of the speed regulating handle 13. When the speed regulating handle 13 is pressed, the bottom end of the speed regulating handle 13 is embedded in the groove of the speed regulating clutch 4. At this time, the speed regulating handle 13 is moved to drive the speed regulating clutch 4 to move to the other arc-shaped groove 10 to achieve gear shifting.

[0031] like Figure 2 As shown, in this embodiment, the cover plate 12 on one side of the speed regulating through hole is marked with "slow-stop-fast" to mark the gear position.

[0032] In this embodiment, a return spring 14 is provided between the speed regulating handle 13 and the upper surface of the cover plate 12, so that after the speed regulating operation, the elastic force of the return spring 14 can reset the speed regulating handle 13 to ensure that the conical head at the bottom of the speed regulating handle 13 does not rub against the speed regulating clutch, thereby avoiding noise pollution.

[0033] In this embodiment, one end of the input shaft 2 extends to the outside of the frame 1 and is connected to a synchronous pulley 15, and one end of the output shaft 3 extends to the outside of the frame 1 and is connected to a sprocket 16. The synchronous pulley 15 is connected to the motor by a belt or the like and rotates at the same speed as the motor shaft. Figure 1 As shown, a mounting plate 17 can be provided on one side of the device frame 1 for mounting and fixing a wire feeding wheel 18. The wire feeding wheel 18 is connected to the output shaft 3 by a transmission chain, so that corresponding sprockets 16 need to be provided on the wire feeding wheel shaft and the output shaft 3 for chain transmission, so that the paired wire feeding wheels 18 clamp the cored wire and move forward to realize the function of feeding various rare earth alloy elements into the molten iron ladle.

[0034] The working process of this embodiment is as follows:

[0035] When high-speed wire feeding is required, the speed regulating handle 13 is pressed, and the conical head at the bottom of the speed regulating handle 13 is embedded in the groove of the speed regulating clutch 4. Then, the speed regulating handle 13 is moved to the "fast" gear on the cover plate 12, and the speed regulating handle 13 is released.

[0036] When low-speed wire feeding is required, the speed regulating handle 13 is pressed, and the conical head at the bottom of the speed regulating handle 13 is embedded in the groove of the speed regulating clutch 4. Then, the speed regulating handle 13 is moved to the "slow" position on the cover plate 12, and the speed regulating handle 13 is released.

[0037] When the wire feeding work is stopped, the speed regulating handle 13 is pressed, and the conical head at the bottom of the speed regulating handle 13 is embedded in the groove of the speed regulating clutch 4. Then, the speed regulating handle 13 is moved to the "stop" position on the cover plate 12, and the speed regulating handle 13 is released.

[0038] In this embodiment, the number of teeth of the input large gear 5, the input small gear 6, the output small gear 7 and the output large gear 8 can be adaptively adjusted according to actual needs to change the transmission ratio.

[0039] The wire feeding machine gear speed change mechanism described in this embodiment has the functions of flexible positioning and convenient speed regulation. The speed regulation clutch cooperates with the arc-shaped groove 10 of the adjusting section of the output shaft 3 through the bead wave screw 11 to achieve the characteristics of flexible positioning and simple operation, and can realize the function of stable speed regulation.

[0040] The embodiments of the present invention disclosed above are intended only to illustrate the present invention. These embodiments do not exhaust all details, nor do they limit the present invention to the specific embodiments described. Numerous modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. A wire feeding machine gear speed change mechanism, characterized by: It comprises a frame (1), an input shaft (2), an output shaft (3) and a speed regulating clutch (4), wherein the input shaft (2) and the output shaft (3) are both rotatably connected to the frame (1), an input large gear (5) and an input small gear (6) are fixedly sleeved on the input shaft (2), an output small gear (7) and an output large gear (8) are rotatably sleeved on the output shaft (3), the input large gear (5) and the output small gear (7) are meshed for transmission, the input small gear (6) and the output large gear (8) are meshed for transmission, a speed regulating section (9) is provided on the output shaft (3) between the output large gear (8) and the output small gear (7), the speed regulating clutch (4) is movably provided on the speed regulating section (9) and is cooperatively connected to the speed regulating section (9), and the speed regulating clutch (4) is cooperatively connected to the output small gear (7) and the output large gear (8) through the speed regulating section (9).

2. The wire feeding machine gear speed change mechanism according to claim 1, characterized in that: The speed regulating section (9) is provided with three arc-shaped grooves (10) at intervals. The speed regulating clutch (4) is connected to the output shaft (3) through the arc-shaped grooves (10) of the speed regulating section (9). When the speed regulating clutch (4) is respectively connected to the arc-shaped grooves (10) at the left and right ends, the speed regulating clutch (4) is respectively connected to the output gear (8) and the output pinion (7). When the speed regulating clutch (4) is respectively connected to the arc-shaped groove (10) at the middle position, the speed regulating clutch (4) is respectively arranged at intervals with the output gear (8) and the output pinion (7).

3. The wire feeding machine gear speed change mechanism according to claim 2, characterized in that: Both sides of the speed regulating clutch (4) are provided with first engaging teeth, and the output gear (8) and the output pinion (7) are provided with second engaging teeth matched with the first engaging teeth on the side close to the speed regulating clutch (4), and the speed regulating clutch (4) is respectively connected to the output gear (8) and the output pinion (7) through the first engaging teeth on both sides.

4. The wire feeding machine gear speed change mechanism according to claim 3, characterized in that: The inner hole of the speed regulating clutch (4) is evenly spaced along the circumferential direction and provided with a plurality of ball screws (11). The fixed end of the ball screw (11) is embedded in the side wall of the inner hole of the speed regulating clutch (4) and is fixedly connected to the speed regulating clutch (4). The ball end of the ball screw (11) abuts against the speed regulating section (9) of the output shaft (3) and is matched with the arc-shaped groove (10).

5. The wire feeding machine gear speed change mechanism according to claim 1, characterized in that: A cover plate (12) is provided on the top of the frame (1), and a speed regulating through hole is opened on the cover plate (12).

6. The wire feeding machine gear speed change mechanism according to claim 5, characterized in that: A speed regulating handle (13) is provided on the top of the cover plate (12); the speed regulating handle (13) passes through the speed regulating through hole and is slidably engaged with the speed regulating through hole.

7. The wire feeding machine gear speed change mechanism according to claim 6, characterized in that: The bottom end of the speed regulating handle (13) is in contact with the speed regulating clutch (4).

8. The wire feeding machine gear speed change mechanism according to claim 7, characterized in that: The outer side wall of the speed regulating clutch (4) is provided with a groove which matches the bottom end of the speed regulating handle (13).

9. The wire feeding machine gear speed change mechanism according to claim 6, characterized in that: A return spring (14) is provided between the speed regulating handle (13) and the upper surface of the cover plate (12).

10. The wire feeding machine gear speed change mechanism according to claim 1, characterized in that: One end of the input shaft (2) extends to the outside of the frame (1) and is connected to a synchronous pulley (15), and one end of the output shaft (3) extends to the outside of the frame (1) and is connected to a sprocket (16).

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