Shot blasting head special for hydraulic casting oil duct and capable of blasting shot in multiple directions

Abstract

The utility model relates to the technical field of shot blasting heads, in particular to a shot blasting head special for a hydraulic casting oil duct and capable of blasting shots in multiple directions. The shot blasting head mainly aims at solving the problems that a common shot blasting head mostly adopts a vertical mode for shot blasting, is difficult to use in a bent area in a hydraulic casting oil duct, increases a cleaning blind area in the shot blasting process, directly impacts the inner wall of the oil duct, increases damage to the oil duct, reduces the durable life and reduces the working efficiency. According to the technical scheme, the shot blasting head comprises a connecting piece, a guide assembly is arranged at the bottom of the connecting piece, a shot blasting pipe is arranged at the bottom of the guide assembly, and an inner channel of the shot blasting pipe is arranged in an L shape. The multi-directional shot blasting device realizes multi-directional shot blasting, improves the practicability of a complex casting oil duct, is beneficial to disassembly and replacement, and reduces the maintenance and replacement cost.

Description

A shot blasting head specifically designed for multi-directional shot blasting of hydraulic casting oil passages. Technical Field

[0001] This utility model relates to the field of shot blasting head technology, and in particular to a shot blasting head specifically designed for hydraulic casting oil passages capable of multi-directional shot blasting. Background Technology

[0002] Hydraulic castings are key components in hydraulic systems, and their design and manufacturing are crucial to the performance and reliability of the system. Oil passages, as the channels for hydraulic fluid within the system, must ensure smooth fluid flow. During the casting process, hydraulic castings may develop defects such as porosity, shrinkage cavities, and oxide scale. These defects can affect the flow performance of the oil passages and even lead to blockages or leaks. Shot blasting can effectively remove these defects and improve the surface quality of the oil passages. Currently, shot blasting of the internal oil passages of hydraulic castings involves inserting a shot blasting head into the passage and using existing shot blasting equipment to propel steel shot at high speed into the passage, achieving cleaning and rinsing of the oil passages.

[0003] However, most common shot blasting heads use a vertical method for shot blasting, which makes it difficult to use in the curved areas of hydraulic casting oil passages. This increases the blind spots in the shot blasting process and directly impacts the inner wall of the oil passage, increasing damage to the oil passage and reducing its service life. Furthermore, the one-piece design of the shot blasting head will increase the subsequent replacement and maintenance costs. In view of this, we propose a special shot blasting head for hydraulic casting oil passages that can perform multi-directional shot blasting. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a shot blasting head specifically for hydraulic casting oil passages that can perform multi-directional shot blasting.

[0005] The technical solution of this utility model is as follows: A shot blasting head for hydraulic casting oil passages capable of multi-directional shot blasting, comprising a connector, a guide component at the bottom of the connector, a shot blasting tube at the bottom of the guide component, an L-shaped channel within the shot blasting tube, rounded corners at the corners of the channel, a first rotating component fitted onto the outer surface wall of the guide component to drive its rotation, a second rotating component installed at the bottom of the connector to facilitate rotation of the first rotating component, nuts distributed at the bottom of the first rotating component to facilitate its installation on the second rotating component, and threads arranged on the outer surface wall of the connector to assist its installation.

[0006] Preferably, the guiding component includes a guiding connector, and a positioning block is connected to the outer wall of the guiding connector, with multiple positioning blocks arranged in a ring array.

[0007] Preferably, the first rotating component includes a positioning turntable, a toothed ring is fitted on the outer surface wall of the positioning turntable, a conical opening is provided in the middle part of the positioning turntable, the guide connector is conical and inserted into the conical opening, a slot is provided on the wall of the conical opening, and a plurality of positioning blocks are respectively embedded in the slots corresponding to their positions.

[0008] Preferably, a tapered outlet is provided on the bottom wall of the connector, the tapered outlet corresponds to the top inlet position of the guide joint, and the bottom end of the guide joint is welded to the top end of the shot blasting tube.

[0009] Preferably, the second rotating assembly includes a limiting rotating ring, the bottom wall of which is connected to a bolt, and a plurality of nuts are respectively fitted onto the outer surface wall of the bolt corresponding to the position.

[0010] Preferably, the positioning turntable has positioning holes, and the bottom ends of the plurality of bolts pass through the positioning holes.

[0011] Preferably, a limiting groove is formed on the bottom wall of the connector, and the limiting rotating ring is disposed in the limiting groove.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] This invention reduces the risk of blockage during shot blasting by using an L-shaped channel design inside the shot blasting tube. The rounded corners also minimize direct damage to the corners of the tube during shot blasting and facilitate shot blasting of oil passages at transverse openings inside the casting, reducing blind spots. Furthermore, the auxiliary rotation of the first and second rotating components enables guided shot blasting of the oil passages inside the casting, improving the applicability of the equipment. Additionally, the shot blasting tube and guide components can be disassembled and replaced after disconnecting the first and second rotating components, preventing replacement along with the connecting parts in case of damage and reducing replacement costs.

[0014] 3. In summary, this utility model achieves multi-directional shot blasting while improving the applicability of oil passages for complex castings, which facilitates disassembly and replacement and reduces maintenance and replacement costs. Attached Figure Description

[0015] Figure 1 is a three-dimensional structural diagram of a shot blasting head for hydraulic casting oil passages that can be shot blasted in multiple directions.

[0016] Figure 2 is a schematic diagram of the front view cross-sectional structure of Figure 1;

[0017] Figure 3 is a schematic diagram of the unfolded structure of the first rotating component and the guide component in Figure 1.

[0018] Reference numerals: 1. Connector; 2. Guide assembly; 21. Guide joint; 22. Positioning block; 3. Shot blasting tube; 4. First rotating assembly; 41. Positioning turntable; 42. Gear ring; 5. Second rotating assembly; 51. Limiting ring; 52. Bolt; 6. Nut; 7. Thread; 8. Rounded corner. Detailed Implementation

[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] Example

[0021] As shown in Figures 1 to 3, this utility model proposes a multi-directional shot blasting head for hydraulic casting oil passages, including a connector 1. Threads 7 arranged on the outer surface wall of the connector 1 facilitate its installation, allowing for installation and positioning with the nozzle of existing shot blasting equipment via threaded connection. A guide assembly 2 is located at the bottom of the connector 1, comprising a guide joint 21 and positioning blocks 22. The guide joint 21, being conical, has a conical internal channel. A conical outlet is provided on the bottom wall of the connector 1. The conical outlet in the connector 1 matches the conical structure inside the guide joint 21, forming a conical channel. The conical outlet in the connector 1 serves as the upper part of the conical channel, and the conical structure inside the guide joint 21 serves as the lower part, facilitating the guidance of the medium. Multiple positioning blocks 22 are arranged in a ring array on the outer surface wall of the guide joint 21 and are welded to it, which is beneficial for subsequent rotation operations.

[0022] Furthermore, the top end of the shot blasting tube 3 is fixedly connected to the bottom end of the guide joint 21, which facilitates subsequent shot blasting operations in conjunction with the guide joint 21. The shot blasting tube 3 is L-shaped, and the rounded corner 8 is arranged at the corner of the L-shaped channel inside the shot blasting tube 3, which plays an auxiliary role in shot blasting. Moreover, the L-shaped channel inside the shot blasting tube 3 is conducive to shot blasting the oil passages in the vertical opening of the hydraulic casting, thus improving its practicality.

[0023] Furthermore, the first rotating component 4 is sleeved on the outer surface wall of the guide joint 21 and positioned below the connector 1. The first rotating component 4 includes a positioning turntable 41 and a gear ring 42. The positioning turntable 41 is sleeved on the outer surface of the guide joint 21 using a conical opening in the middle. Multiple positioning blocks 22 are respectively embedded in multiple slots opened on the wall of the conical opening. This allows the positioning turntable 41 to drive the guide component 2 and the shot blasting tube 3 to rotate in cooperation with the slots and positioning blocks 22. This allows for adjustment of the shot blasting direction of the shot blasting tube 3, increasing the shot blasting angle, reducing the impact of dead angles on shot blasting, and helping to reduce the impact pressure directly caused by vertical shot blasting on the internal oil passages of the casting. The gear ring 42 is sleeved on the outer surface wall of the positioning turntable 41, which is convenient for cooperating with the existing motor drive shaft to drive the gear to adjust the rotation direction of the positioning turntable 41.

[0024] Furthermore, the second rotating assembly 5 is arranged at the bottom wall of the connector 1. The second rotating assembly 5 includes a limiting rotating ring 51 and bolts 52. The limiting rotating ring 51 is embedded in the limiting rotating groove opened on the bottom wall of the connector 1. The ends of multiple bolts 52 pass through multiple positioning holes opened on the positioning turntable 41 and are fixedly connected to the bottom wall of the limiting rotating ring 51. Multiple nuts 6 set at the bottom of the positioning turntable 41 are sleeved on the corresponding bolts 52, which serves to install the positioning turntable 41 on the limiting rotating ring 51. Conversely, the first rotating assembly 4 can be disassembled to facilitate the removal, disassembly and replacement of the guide assembly 2 and the shot blasting tube 3, reducing the cost of replacing the shot blasting tube 3 after it is damaged, without the need for overall replacement.

[0025] In this embodiment, the medium can be introduced into the shot blasting tube 3 through the tapered outlet on the bottom wall of the connector 1 and the guide connector 21. After passing through the rounded corner 8 and the L-shaped channel inside the shot blasting tube 3, the shot blasting operation is realized. With the assistance of the limiting rotating ring 51, the positioning turntable 41 can drive the guide connector 21 to rotate in conjunction with the positioning block 22, so as to adjust the shot blasting direction of the shot blasting tube 3. This is beneficial for shot blasting the vertical opening of the oil passage inside the hydraulic casting, improving practicality. Furthermore, with the cooperation of the L-shaped channel of the shot blasting tube 3 and the rounded corner 8, the damage to the oil passage caused by direct vertical shot blasting is reduced. When the shot blasting tube 3 is damaged, the nut 6 is unscrewed to disconnect the connection between the first rotating component 4 and the second rotating component 5, so that the equipment is split into three parts. This makes it easier to replace the connector 1, the first rotating component 4, or the shot blasting tube 3 individually, so as to prevent the whole body from being replaced when one part is damaged, thus reducing the cost of subsequent replacement and maintenance.

[0026] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A shot blasting head for hydraulic casting oil passages capable of multi-directional shot blasting, comprising a connector (1), characterized in that: The bottom of the connector (1) is provided with a guide component (2), and the bottom of the guide component (2) is provided with a shot blasting tube (3). The inner channel of the shot blasting tube (3) is L-shaped, and the corner of the inner channel of the shot blasting tube (3) is provided with a rounded corner (8). The outer surface wall of the guide component (2) is fitted with a first rotating component (4) that can drive it to rotate. The bottom of the connector (1) is provided with a second rotating component (5) that facilitates the rotation of the first rotating component (4). The bottom of the first rotating component (4) is provided with nuts (6) that facilitate its installation on the second rotating component (5). The outer surface wall of the connector (1) is provided with threads (7) that assist its installation.

2. The shot blasting head for multi-directional shot blasting of hydraulic casting oil passages according to claim 1, characterized in that, The guiding component (2) includes a guiding connector (21), and a positioning block (22) is connected to the outer wall of the guiding connector (21). The multiple positioning blocks (22) are arranged in a ring array.

3. The multi-directional throwable hydraulic die oil gallery special-purpose shot blasting head according to claim 2, characterized in that, The first rotating component (4) includes a positioning turntable (41), on which a toothed ring (42) is fitted. A conical opening is provided in the middle part of the positioning turntable (41), and the guide connector (21) is conical and inserted into the conical opening. A slot is provided on the wall of the conical opening, and multiple positioning blocks (22) are respectively embedded in the slots corresponding to their positions.

4. The multi-directional throwable hydraulic die oil gallery special-purpose shot blasting head according to claim 2, characterized in that, The bottom wall of the connector (1) is provided with a tapered outlet, which corresponds to the top inlet position of the guide joint (21). The bottom end of the guide joint (21) is welded to the top end of the shot blasting tube (3).

5. A shot blasting head for multi-directional shot blasting of hydraulic casting oil passages according to claim 3, characterized in that, The second rotating assembly (5) includes a limiting rotating ring (51), on the bottom wall of the limiting rotating ring (51) is a bolt (52), and a plurality of nuts (6) are respectively sleeved on the outer surface wall of the bolt (52) corresponding to the position.

6. A shot blasting head for multi-directional shot blasting of hydraulic casting oil passages according to claim 5, characterized in that, The positioning turntable (41) has positioning holes, and the bottom ends of the multiple bolts (52) pass through the corresponding positioning holes.

7. A shot blasting head for multi-directional shot blasting of hydraulic casting oil passages according to claim 5, characterized in that, A limiting groove is provided on the bottom wall of the connector (1), and the limiting rotating ring (51) is set into the limiting rotating groove.

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