A hollow shaft high-pressure flushing device

Abstract

This utility model relates to automotive power shaft processing equipment, and more particularly to a high-pressure flushing device for hollow shafts. It comprises a support frame, a movable pressure plate, and a high-pressure flushing pipe. The support frame includes a horizontal strip plate and a support plate surface; the horizontal strip plate has several shaft positioning holes; the movable pressure plate covers the horizontal strip plate and is connected to the rear side plate of the horizontal strip plate via a movable hinge; the movable pressure plate has a U-shaped opening; the high-pressure flushing pipe has a U-shaped structure, with one end connected to a high-pressure flushing machine and the other end extending into the hollow shaft from the bottom opening. This utility model employs a double-sided clamping structure with a shaft shoulder, which effectively avoids impact on the hollow shaft surface. The inverted flushing method facilitates the use of gravity to allow the flushing fluid and impurities to flow out of the hollow shaft more quickly and efficiently, allowing the hollow shaft's own weight to counteract the upward jet force of the high-pressure nozzle, reducing the clamping force required by the clamping structure.

Description

Technical Field

[0001] This utility model relates to automotive power shaft processing equipment, and more particularly to a high-pressure flushing device for hollow shafts. Background Technology

[0002] With the development of precision manufacturing technology for new energy vehicle power systems and the advancement of materials technology, in order to meet the demands of automotive power systems for high-speed and high-cooling performance of the main shaft, the main shaft of new energy vehicle drive motors is beginning to transition to a hollow shaft structure. During the manufacturing process of hollow shafts, in order to ensure the cleanliness of the inner wall of the hollow shaft, it is necessary to effectively clean the inner cavity during the processing and process intervals to ensure the accuracy of subsequent processing. Due to the small opening at the end of the hollow shaft, traditional cleaning methods are inefficient and cannot guarantee effective cleaning. High-pressure flushing is required, but traditional solutions require clamping and fixing the flushing device itself. For hollow shafts, such clamping and fixing can easily have an adverse effect on the shaft section, affecting the product manufacturing process and quality. Utility Model Content

[0003] The purpose of this invention is to provide a high-pressure rinsing device for hollow shafts, which is suitable for high-pressure rinsing of hollow shafts and is used to improve the rinsing efficiency and effectiveness of hollow shafts.

[0004] To achieve the above objectives, the present invention adopts the following technical solution.

[0005] A hollow shaft high-pressure flushing device includes a support frame 1, a movable pressure plate 2, and a high-pressure flushing pipe 3;

[0006] The support frame 1 has a gate-shaped structure, including a horizontal strip plate 10 at the top and support plates 11 on both sides of the horizontal strip plate 10; a number of shaft positioning holes 1a are evenly arranged in the center of the horizontal strip plate 10 along the left and right direction.

[0007] The movable pressure plate 2 covers the horizontal strip plate 10, and its rear end is connected to the rear side plate of the horizontal strip plate 10 through the movable hinge 4. The movable pressure plate 2 is provided with a U-shaped opening 2a that is directly opposite to the shaft positioning hole 1a; the opening of the U-shaped opening 2a is located on the front side of the movable pressure plate 2.

[0008] The high-pressure flushing pipe 3 has a U-shaped structure, with one end connected to the high-pressure flushing machine and the other end extending into the hollow shaft from the bottom opening.

[0009] A further improvement or preferred embodiment of the aforementioned hollow shaft high-pressure flushing device also includes multiple clamping components 5; the clamping components 5 are evenly arranged on the front side of the upper end of the horizontal strip plate 10 in the left-right direction, and the clamping components 5 are used to clamp the movable pressure plate 2.

[0010] In a further improvement or preferred embodiment of the aforementioned hollow shaft high-pressure flushing device, the clamping assembly 5 adopts a multi-link mechanical clamping mechanism, including an L-shaped clamping rod 50, a L-shaped clamping rod 51, a connecting rod 52, and a hinge seat 53;

[0011] The hinge seat 53 is fixed on the upper end face of the horizontal strip plate 10 and located between two adjacent U-shaped openings 2a; the top of the hinge seat 53 is provided with a first hinge hole and a second hinge hole, which are arranged along the front-to-back direction with the front lower than the back.

[0012] The short arm end of the L-shaped pressure bar 50 is hinged in the second hinge hole, and the bent part is hinged to the bent end of the L-shaped pressure bar 51; one end of the connecting rod 52 is hinged in the first hinge hole, and the other end is hinged to the bent starting section of the L-shaped pressure bar 51.

[0013] In a further improvement or preferred embodiment of the aforementioned hollow shaft high-pressure flushing device, the radius of the shaft positioning hole 1a is [missing information]. ,and ;in This refers to the maximum outer diameter of the hollow shaft 9. It refers to the outer diameter of the shaft section with the largest outer diameter facing the open end of the hollow shaft 9.

[0014] In a further improvement or preferred embodiment of the aforementioned hollow shaft high-pressure flushing device, a distance sensor is provided on the side of the high-pressure flushing pipe 3 near the high-pressure flushing machine, and the height of the distance sensor is flush with the height of the nozzle of the high-pressure flushing pipe 3 extending into the hollow shaft 9.

[0015] A further improvement or preferred embodiment of the aforementioned hollow shaft high-pressure flushing device also includes a baffle 6 located on the front side of the support plate frame 1, wherein the baffle 6 is provided with a plurality of observation windows 6a, and pressure-resistant glass is embedded in the observation windows 6a.

[0016] Its beneficial effects are as follows:

[0017] This utility model's hollow shaft high-pressure flushing device is mainly used for high-pressure flushing during the roughing and finishing processes of various hollow shafts. Its double-sided clamping structure with shaft shoulders can effectively avoid the influence on the shaft surface of the hollow shaft. The inverted flushing method facilitates the use of gravity to make the flushing liquid and impurities flow out of the hollow shaft more quickly and efficiently. On the other hand, the weight of the hollow shaft itself counteracts the upward jet force of the high-pressure nozzle, reducing the clamping force required by the clamping structure. This avoids excessive clamping force from affecting the appearance of the hollow shaft and other aspects, simplifying subsequent processing. Attached Figure Description

[0018] Figure 1 This is a front view of the hollow shaft high-pressure flushing device;

[0019] Figure 2This is a cross-sectional view of a hollow shaft high-pressure flushing device;

[0020] Figure 3 This is a top view of a hollow shaft high-pressure flushing device;

[0021] Figure 4 This is a perspective view of a hollow shaft high-pressure flushing device;

[0022] The attached reference numerals include: support plate frame 1, shaft positioning hole 1a, horizontal strip plate surface 10, support plate surface 11, connecting plate surface 12, strip fixing hole 12a, movable pressure plate 2, U-shaped opening 2a, high-pressure flushing pipe 3, movable hinge 4, pressing assembly 5, L-shaped pressure rod 50, L-shaped pressure rod 51, connecting rod 52, hinge seat 53, baffle 6, observation window 6a, and hollow shaft 9. Detailed Implementation

[0023] The present invention will be described in detail below with reference to specific embodiments.

[0024] This utility model relates to a high-pressure flushing device for hollow shafts, which is mainly applicable to high-pressure flushing of various hollow shaft products in the new shaft power system used in various new energy vehicles. It provides an efficient and fast flushing method to prevent residual impurities during the hollow shaft processing from adversely affecting the hollow shaft processing technology and product quality. It solves the problem that traditional clamping and flushing schemes are difficult to implement for hollow shaft flushing, or that they may cause damage to the surface of the hollow shaft during implementation.

[0025] like Figure 1 , Figure 2 As shown, the main structure of the hollow shaft high-pressure flushing device of this utility model includes a support plate frame 1, a movable pressure plate 2, and a high-pressure flushing pipe 3;

[0026] The support frame 1 has a portal-shaped structure and is mainly used to provide the necessary support and fixing structure to ensure that the hollow shaft can be stably supported so as to facilitate high-pressure washing.

[0027] The support frame 1 mainly includes a horizontal strip plate 10 at the top and support plates 11 located on both sides of the horizontal strip plate 10; a number of shaft positioning holes 1a are evenly arranged in the center of the horizontal strip plate 10 along the left and right direction.

[0028] In actual implementation, the support plate frame 1 generally needs to be protected in a sealed flushing chamber or to be used in conjunction with automated CNC equipment to achieve automatic flushing. Therefore, the two sides of its support plate surface 11 are usually provided with outwardly extending fixed support structures according to specific needs. For example, in this embodiment, the support plate surface 11 extends to the left and right sides to form a connecting plate surface 12, and the connecting plate surface 12 is provided with strip-shaped fixing holes 12a.

[0029] The movable pressure plate 2 covers the horizontal strip plate 10, and its rear end is connected to the rear side plate of the horizontal strip plate 10 through the movable hinge 4. The movable pressure plate 2 is provided with a U-shaped opening 2a that is directly opposite to the shaft positioning hole 1a; the opening of the U-shaped opening 2a is located on the front side of the movable pressure plate 2.

[0030] In this invention, the hollow shaft 9 is inverted in the shaft positioning hole 1a with its opening facing downwards, and then its shoulder is pressed by the movable pressure plate 2 to fix it on the support plate frame 1. The method of clamping the shaft shoulder end face effectively avoids the problem of clamping marks left on the shaft surface that may occur with traditional clamping methods. It also effectively prevents the shaft from being subjected to high-pressure impact during high-pressure spraying. At the same time, it can fully expose the surface of the hollow shaft, reduce obstruction, and avoid the need for effective internal and external cleaning. The downward opening facilitates the efficient removal of high-pressure rinsing fluid and impurities by its own weight. It can also use the weight of the hollow shaft to stabilize it on the device, reducing the required clamping force. During the spraying process, the rinsing force can be offset by gravity to reduce vibration. The rinsing direction is easy to determine and control along the axial direction, avoiding the unbalanced force on the hollow shaft. At the same time, its structure is simple and easy to use, greatly reducing the difficulty of high-pressure rinsing of hollow shafts and improving production efficiency.

[0031] Specifically, to ensure stable support of the hollow shaft, it is generally fixed using a shoulder at its maximum shaft diameter. Assume the radius of the shaft positioning hole 1a is... ,but ;in This refers to the maximum outer diameter of the hollow shaft 9. This refers to the outer diameter of the section of the hollow shaft 9 with the largest outer diameter facing the open end. This clamping method can make the most of the shoulder position with the largest thickness of the hollow shaft for fixing, which is generally also the position with the greatest strength. This helps to further reduce the impact of clamping on the hollow shaft, while ensuring that all surfaces can be cleaned more easily.

[0032] like Figure 3 , Figure 4 As shown, the high-pressure flushing pipe 3 has a U-shaped structure, with one end connected to the high-pressure flushing machine and the other end extending into the hollow shaft from the bottom opening.

[0033] In particular, for some lightweight hollow shafts or other situations, in order to avoid the hollow shaft from vibrating excessively during high-pressure washing due to insufficient self-weight or insufficient clamping force, the improved solution of this company also includes several additional clamping components 5.

[0034] The clamping assembly 5 is used to provide additional clamping force when necessary, further enhancing the clamping effectiveness after the hollow shaft is placed, and ensuring smooth rinsing.

[0035] like Figure 2 , Figure 4As shown, the clamping components 5 are evenly arranged on the front side of the upper end of the horizontal strip plate 10 in the left and right direction. The clamping components 5 are used to clamp the movable pressure plate 2.

[0036] As a preferred embodiment, the clamping assembly 5 adopts a multi-link mechanical clamping mechanism, which has a simple structure, convenient clamping, and high efficiency.

[0037] Its main structure includes an L-shaped pressure bar 50, a horizontal pressure bar 51, a connecting rod 52, and a hinge seat 53;

[0038] The hinge seat 53 is fixed on the upper end face of the horizontal strip plate 10 and located between two adjacent U-shaped openings 2a; the top of the hinge seat 53 is provided with a first hinge hole and a second hinge hole, which are arranged along the front-to-back direction with the front lower than the back.

[0039] The short arm end of the L-shaped pressure bar 50 is hinged in the second hinge hole, and the bent part is hinged to the bent end of the L-shaped pressure bar 51; one end of the connecting rod 52 is hinged in the first hinge hole, and the other end is hinged to the bent starting section of the L-shaped pressure bar 51.

[0040] In particular, as an improvement to complement intelligent and automated rinsing, in this embodiment, a distance sensor is provided on the side of the high-pressure rinsing pipe 3 near the high-pressure rinsing machine. The height of the distance sensor is flush with the height of the nozzle of the high-pressure rinsing pipe 3 extending into the hollow shaft 9.

[0041] The distance sensor can monitor in real time whether the nozzle end of the high-pressure flushing pipe 3 is close to the highest point of the hollow shaft cavity based on the distance between the sensor and the hollow shaft body. This can be used to control the flushing progress and prevent the high-pressure flushing pipe from directly hitting the inner wall of the hollow shaft.

[0042] In particular, to prevent waste liquid from splashing due to high-pressure rinsing, and to facilitate observation of the rinsing progress and analysis of whether there are any remaining impurities, this embodiment also includes a baffle 6 located on the front side of the support plate frame 1. The baffle 6 is provided with several observation windows 6a, and pressure-resistant glass is embedded in the observation windows 6a.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A hollow shaft high-pressure flushing device, characterized in that, Support plate frame (1), movable pressure plate (2), high-pressure flushing pipe (3); The support frame (1) has a door-shaped structure, including a horizontal strip plate (10) at the top and support plates (11) on both sides of the horizontal strip plate (10); the center of the horizontal strip plate (10) is provided with a number of axial positioning holes (1a) evenly arranged in the left and right direction. The movable pressure plate (2) covers the horizontal strip plate (10), and its rear end is connected to the rear side plate of the horizontal strip plate (10) by a movable hinge (4). The movable pressure plate (2) is provided with a U-shaped opening (2a) that is directly opposite to the shaft positioning hole (1a); the opening of the U-shaped opening (2a) is located on the front side of the movable pressure plate (2). The high-pressure flushing pipe (3) has a U-shaped structure, with one end connected to the high-pressure flushing machine and the other end extending from the bottom opening of the hollow shaft.

2. The hollow shaft high-pressure flushing device according to claim 1, characterized in that, It also includes multiple clamping components (5); the clamping components (5) are evenly arranged on the front side of the upper end of the horizontal strip plate (10) in the left and right direction, and the clamping components (5) are used to clamp the movable pressure plate (2).

3. The hollow shaft high-pressure flushing device according to claim 2, characterized in that, The clamping assembly (5) adopts a multi-link mechanical clamping mechanism, including an L-shaped clamping rod (50), a π-shaped clamping rod (51), a connecting rod (52), and a hinge seat (53). The hinge seat (53) is fixed on the upper end face of the horizontal strip plate (10) and located between two adjacent U-shaped openings (2a); the top of the hinge seat (53) is provided with a first hinge hole and a second hinge hole, the first hinge hole and the second hinge hole are arranged along the front and back direction with the front lower and the back higher. The short arm end of the L-shaped pressure bar (50) is hinged in the second hinge hole, and the bent part is hinged to the bent end of the L-shaped pressure bar (51); one end of the connecting rod (52) is hinged in the first hinge hole, and the other end is hinged to the bent starting section of the L-shaped pressure bar (51).

4. The hollow shaft high-pressure flushing device according to claim 1, characterized in that, The radius of the shaft positioning hole (1a) is ,and ;in This refers to the maximum outer diameter of the hollow shaft (9). It refers to the outer diameter of the shaft section with the largest outer diameter facing the open end of the hollow shaft (9).

5. The hollow shaft high-pressure flushing device according to claim 1, characterized in that, A distance sensor is installed on the side of the high-pressure flushing pipe (3) near the high-pressure flushing machine. The height of the distance sensor is flush with the height of the nozzle of the high-pressure flushing pipe (3) extending into the hollow shaft (9).

6. The hollow shaft high-pressure flushing device according to claim 1, characterized in that, It also includes a baffle (6) located on the front side of the support plate frame (1), the baffle (6) having a plurality of observation windows (6a) and pressure-resistant glass embedded in the observation windows (6a).

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