Improved sizing machine automatic coupling

Abstract

The utility model belongs to the technical field of the sizing machine coupling, especially improve automatic coupling of sizing machine, including output shaft, the outer wall of output shaft is sleeved and has the spline head, the outer wall bolt connection of spline head has the gland, the connecting part of gland and spline head is inlayed and has the internal spline sleeve, the inner wall of internal spline sleeve is inlayed and has the top plate, the connecting part of top plate and output shaft is provided with spring, the cooperation of output shaft and spline head adopts the interference fit, and the interference amount is fifteen to eighteen silk, the internal spline sleeve and the gland adopt the involute spline and slide, and the modulus adopts eight, can ensure that the large torque that can bear when the rack reduces the steel pipe is produced, can play the very good centering effect when adopting the involute spline to the rack connection, and the service life is more than three times of the past.

Description

Technical Field

[0001] This utility model belongs to the technical field of sizing machine couplings, and particularly relates to an improved automatic coupling for sizing machines. Background Technology

[0002] The sizing machine is used to process the outer diameter of the tube more precisely. Since each specification corresponds to a set of frames, the frames need to be changed quickly when changing specifications. The coupling that drives the frame rollers to rotate needs to be aligned and can be quickly connected.

[0003] Existing automatic couplings for sizing machines use drum-tooth splines, which, after prolonged use, result in poor alignment, making it impossible to effectively connect when replacing the frame. The output shaft uses involute splines, which gradually wear down and fail over time. Replacing the output shaft then requires complete disassembly of the reducer, making the replacement too costly. Therefore, we propose an improved automatic coupling for sizing machines. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing an improved automatic coupling for sizing machines, thus avoiding poor alignment of the coupling.

[0005] In view of this, the present invention provides an improved automatic coupling for a sizing machine, including an output shaft, a spline head sleeved on the outer wall of the output shaft, a pressure cap bolted to the outer wall of the spline head, an inner spline sleeve fitted at the connection between the pressure cap and the spline head, a top plate fitted on the inner wall of the inner spline sleeve, and a spring provided at the connection between the top plate and the output shaft.

[0006] Based on the above structure, the output shaft and spline head are fitted with an interference fit, with an interference of 15 to 18 microns. The inner spline sleeve and the pressure cover are fitted with an involute spline with a module of 8 to ensure that they can withstand the large torque generated when the frame reduces the diameter of the steel pipe. Since the involute spline is used to connect to the frame, it can play a good centering role, and the service life is more than three times that of the past.

[0007] Preferably, the central axis of the output shaft coincides with the central axis of the spline head. In this embodiment, deformation of the output shaft during rotation is avoided.

[0008] Preferably, the output shaft and the spline head are fitted with an interference fit, with an interference amount of 15 to 18 microns. In this embodiment, this helps to improve the stability of the connection between the output shaft and the spline head.

[0009] Preferably, the central axis of the inner spline sleeve coincides with the central axis of the pressure cap, which is the control operation implemented in this embodiment.

[0010] Preferably, the inner spline sleeve and the pressure cap are slidably fitted using an involute spline with a module of eight. In this embodiment, this is beneficial for improving the stability of the connection between the inner spline sleeve and the pressure cap.

[0011] Preferably, the central axis of the output shaft coincides with the central axis of the top plate. In this embodiment, uneven force on the output shaft is avoided, which could lead to deformation of the output shaft.

[0012] The beneficial effects of this utility model are:

[0013] The improved automatic coupling of the sizing machine uses an interference fit between the output shaft and the spline head, with an interference of 15 to 18 microns. The inner spline sleeve and the gland use an involute spline for sliding fit, with a module of 8, to ensure that it can withstand the large torque generated when the machine frame reduces the diameter of the steel pipe. Because the involute spline is used to connect to the machine frame, it can play a good centering role, and its service life is more than three times that of the previous type. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the overall three-dimensional unfolded structure of this utility model;

[0017] Figure 4 This is the overall right view of the present invention.

[0018] The markings in the diagram are as follows:

[0019] 1. Output shaft; 2. Spline head; 3. Pressure cap; 4. Inner spline sleeve; 5. Top plate; 6. Spring. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0021] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0022] This application discloses an improved automatic coupling for a sizing machine, including an output shaft 1, a spline head 2 sleeved on the outer wall of the output shaft 1, a pressure cap 3 bolted to the outer wall of the spline head 2, an inner spline sleeve 4 fitted at the connection between the pressure cap 3 and the spline head 2, a top plate 5 fitted on the inner wall of the inner spline sleeve 4, and a spring 6 provided at the connection between the top plate 5 and the output shaft 1.

[0023] Based on the above structure, the output shaft 1 and the spline head 2 are fitted with an interference fit, with an interference of 15 to 18 microns. The inner spline sleeve 4 and the pressure cover 3 are fitted with an involute spline with a module of 8 to ensure that they can withstand the large torque generated when the frame reduces the diameter of the steel pipe. Since the involute spline is used to connect the frame, it can play a good centering role, and the service life is more than three times that of the past.

[0024] In one embodiment, the central axis of the output shaft 1 coincides with the central axis of the spline head 2.

[0025] In this embodiment, deformation of the output shaft 1 during rotation is avoided.

[0026] In one embodiment, the output shaft 1 and the spline head 2 are fitted with an interference fit, with an interference amount of 15 to 18 microns.

[0027] In this embodiment, it is beneficial to improve the stability of the connection between the output shaft 1 and the spline head 2.

[0028] In one embodiment, the central axis of the inner spline sleeve 4 coincides with the central axis of the pressure cap 3.

[0029] The control operation implemented in this embodiment.

[0030] In one embodiment, the inner spline sleeve 4 and the pressure cap 3 are slidably fitted with an involute spline with a module of eight.

[0031] In this embodiment, it is beneficial to improve the stability of the connection between the inner spline sleeve 4 and the pressure cap 3.

[0032] In one embodiment, the central axis of the output shaft 1 coincides with the central axis of the top plate 5.

[0033] In this embodiment, uneven force on the output shaft 1 is avoided, which could lead to deformation of the output shaft 1.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An improved automatic coupling for a sizing machine, characterized in that, The device includes an output shaft (1), a spline head (2) is sleeved on the outer wall of the output shaft (1), a pressure cap (3) is bolted to the outer wall of the spline head (2), an inner spline sleeve (4) is fitted at the connection between the pressure cap (3) and the spline head (2), a top plate (5) is fitted on the inner wall of the inner spline sleeve (4), and a spring (6) is provided at the connection between the top plate (5) and the output shaft (1).

2. The improved automatic coupling for sizing machines according to claim 1, characterized in that: The central axis of the output shaft (1) coincides with the central axis of the spline head (2).

3. The improved automatic coupling for sizing machines according to claim 1, characterized in that: The output shaft (1) and the spline head (2) are fitted with an interference fit, with an interference of 15 to 18 microns.

4. The improved automatic coupling for sizing machines according to claim 1, characterized in that: The central axis of the inner spline sleeve (4) coincides with the central axis of the pressure cap (3).

5. The improved automatic coupling for sizing machines according to claim 1, characterized in that: The inner spline sleeve (4) and the pressure cap (3) are slidably fitted with an involute spline with a module of eight.

6. The improved automatic coupling for sizing machines according to claim 1, characterized in that: The central axis of the output shaft (1) coincides with the central axis of the top plate (5).

Images