Sliding shaft assembly for shot blasting machine

Abstract

The sliding shaft assembly for the shot blasting machine comprises a guide rail and a pulley assembly moving on the guide rail, a connecting column is fixedly connected to the bottom of the pulley assembly, a bearing beam is fixedly connected to the bottom of the connecting column, a rail groove is formed in the bottom of the bearing beam in the length direction, and the bottom of the bearing beam is connected with a moving assembly in a sliding mode. The bottom of the moving assembly is connected with a connecting plate used for installing a lifting rope through a connecting rod. The utility model relates to the technical field of shot blasting machines. According to the sliding shaft assembly for the shot blasting machine, through the arranged moving assembly, the hoisting point position of a steel rope can be freely adjusted according to the size of a workpiece when the workpiece is hoisted, and the moving assembly is fixed to the corresponding hoisting point position when the workpiece is hoisted, so that the hoisting stability of the workpiece is guaranteed, and the hoisting efficiency of the workpiece is improved; therefore, the workpiece surface treatment efficiency is effectively improved, meanwhile, the hoisting range of the sliding shaft assembly can be enlarged, and the practicability of the sliding shaft assembly is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shot blasting machines, in particular to a sliding shaft assembly for a shot blasting machine. Background Technique

[0002] A shot blasting machine refers to a casting equipment that uses high-speed projectiles thrown by a shot blasting device to clean or strengthen the surface of castings. According to modern metal strength theory, increasing the dislocation density inside the metal is the main direction to improve the metal strength. Practice has proved that shot blasting is an effective process method to increase the dislocation structure of metals.

[0003] Shot blasting uses small metal or non-metal particles, also known as "blasting pellets", which are propelled at high speed to clean and prepare the surface. An air compressor or a wheel type sandblasting system is used to propel the particles, which hit the surface, remove contaminants and form a rough texture.

[0004] In the prior art, when a passing shot blasting machine is used to clean the surface of a workpiece, it is necessary to use the cooperation of a slide rail and a pulley to lift the workpiece into the working chamber of the shot blasting machine through a steel rope. When the workpiece is large in size, a single lifting point cannot meet the stability of workpiece transportation. Therefore, an extended load-bearing beam is installed at the bottom of the pulley to increase the lifting points of the workpiece and make the transportation of the workpiece more stable.

[0005] Due to the diversity of workpieces, the lengths and sizes of workpieces are not the same. Therefore, the positions of the lifting points of the workpieces are also different. So, multiple points for installing lifting ropes are usually set at the bottom of the load-bearing beam. However, this method requires the lifting ropes to be removed first and then installed at the corresponding points every time different workpieces are lifted, which affects the lifting efficiency of the workpieces. Content of the Utility Model

[0006] Aiming at the deficiencies existing in the prior art, the purpose of the utility model is to provide a sliding shaft assembly for a shot blasting machine, so as to solve the technical problems mentioned in the above background technique.

[0007] The above technical purpose of the utility model is achieved through the following technical solutions:

[0008] A sliding shaft assembly for a shot blasting machine includes a guide rail and a pulley assembly that moves on the guide rail. A connecting column is fixedly connected to the bottom of the pulley assembly, and a load-bearing beam is fixedly connected to the bottom of the connecting column. A track groove is formed along the length direction at the bottom of the load-bearing beam, and a moving assembly is slidably connected to the track groove. The bottom of the moving assembly is connected to a connecting plate for installing a lifting rope through a connecting rod.

[0009] Further, the moving component mainly consists of a sliding table and a positioning pin. A sliding groove is formed at the top of the track groove and is slidably connected with the sliding table. A circular groove is formed at a position of the track groove at the bottom of the sliding table, and the positioning pin is inserted into the circular groove. A plurality of slots for inserting the positioning pin are equidistantly spaced along the length direction at the opening top of the track groove.

[0010] Further, a limiting ring is formed by the convexity of the outer side wall at the top of the positioning pin, and a support spring is arranged between the bottom of the limiting ring and the circular groove.

[0011] Further, the length of the positioning pin is less than the depth of the slot, so that when the support spring pushes the positioning pin to the top of the slot, the positioning pin completely enters the slot.

[0012] Further, a rounded corner is machined at the bottom of the positioning pin, a circular surface that fits the rounded corner is machined on the inner bottom wall of the slot, and a guiding surface for guiding the insertion of the positioning pin is machined on the inner top wall of the slot.

[0013] Further, a limiting groove is formed at the opening of the inner side wall of the sliding groove, and a ball is connected in the limiting groove through a compression spring.

[0014] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0015] 1. For the sliding shaft component for shot blasting machine, by setting the moving component, the hoisting point of the steel wire can be freely adjusted according to the size of the workpiece during hoisting, and the moving component is fixed at the corresponding hoisting point when hoisting the workpiece, ensuring the stability of workpiece hoisting, improving the efficiency of workpiece hoisting, thus effectively improving the efficiency of workpiece surface treatment. At the same time, the hoisting range of the sliding shaft component can be expanded, greatly improving the practicability of the sliding shaft component;

[0016] 2. For the sliding shaft component for shot blasting machine, by setting the limiting groove, the ball and the compression spring, the detachment of the moving component can be prevented, and at the same time, the setting of the ball and the compression spring does not affect the installation and disassembly of the moving component, which can further improve the practicability of the moving shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1Schematic structural diagram of a sliding shaft assembly for a shot blasting machine of the present utility model.

[0019] Figure 2 Internal structural diagram of a sliding shaft assembly for a shot blasting machine of the present utility model.

[0020] Figure 3 Schematic structural diagram of a sliding shaft assembly for a shot blasting machine of the present utility model when the moving assembly is fixed.

[0021] Figure 4 Schematic structural diagram of a limit groove in a sliding shaft assembly for a shot blasting machine of the present utility model.

[0022] Figure 5 Internal structural diagram of a moving assembly in a sliding shaft assembly for a shot blasting machine of the present utility model.

[0023] In the figure, 1, guide rail; 2, pulley assembly; 3, connecting column; 4, load-bearing beam; 5, track groove; 6, moving assembly; 61, sliding table; 62, positioning pin; 7, connecting plate; 8, chute; 9, circular groove; 10, slot; 11, limit ring; 12, rounded corner; 13, circular surface; 14, guiding surface; 15, limit groove; 16, ball. Detailed implementation manners

[0024] The following further elaborates on the present utility model with reference to the attached drawings.

[0025] Embodiment:

[0026] Referring to Figure 1 - Figure 5 , a sliding shaft assembly for a shot blasting machine disclosed by the present utility model includes a guide rail 1 and a pulley assembly 2 moving on the guide rail 1. A connecting column 3 is fixedly connected to the bottom of the pulley assembly 2, a load-bearing beam 4 is fixedly connected to the bottom of the connecting column 3, a track groove 5 is formed in the bottom of the load-bearing beam 4 along the length direction and is slidably connected with a moving assembly 6, and the bottom of the moving assembly 6 is connected with a connecting plate 7 for installing a suspension rope through a connecting rod.

[0027] In this embodiment, by providing a guide rail 1 at the bottom of the pulley assembly 2, the pulley assembly 2 can move on the guide rail 1, thereby moving the load-bearing beam 4 connected by the connecting column 3 at the bottom of the pulley assembly 2, and enabling the workpiece lifted by the load-bearing beam 4 to enter the shot blasting machine for surface treatment of the workpiece.

[0028] Since the shapes of large workpieces are different, the positions of the suspension points for lifting large workpieces are also different. It is necessary to adjust the connection position of the steel rope at the bottom of the load-bearing beam according to the suspension point position of the large workpiece during use. Therefore, observing Figure 1 - Figure 3It can be found that a track groove 5 is opened along the length direction at the bottom of the load-bearing beam 4, and a moving component 6 is slidably arranged in the track groove 5. The lifting point of the steel rope can be changed by sliding the moving component 6 in the track groove 5, so that the steel rope does not need to be disassembled and reinstalled when lifting the workpiece, improving the lifting efficiency of the workpiece and making the surface treatment efficiency of the workpiece higher.

[0029] The arrangement of the track groove 5 and the moving component 6 enables the load-bearing beam 4 to lift the workpieces within the length range of the load-bearing beam 4, which can greatly expand the lifting range of the load-bearing beam 4 and improve the practicality of the sliding shaft component.

[0030] Among them, the above-mentioned pulley assembly 2 can be a mechanism in which a motor drives a roller to move on the guide rail 1 or a mechanism that can move the load-bearing beam 4 along the path of the guide rail 1. Since it is not within the scope of improvement, it will not be described in detail.

[0031] In a further preferred embodiment of the present invention, as Figure 3 and Figure 5 shown, the moving component 6 is mainly composed of a slide table 61 and a positioning pin 62. A chute 8 is opened at the top of the track groove 5 and is slidably connected to the slide table 61. A circular groove 9 is opened at a place of the track groove 5 at the bottom of the slide table 61, and the positioning pin 62 is inserted into the circular groove 9. A plurality of slots 10 for inserting the positioning pin 62 are equidistantly spaced along the length direction at the opening top of the track groove 5;

[0032] A limiting ring 11 is formed by protruding on the outer side wall top of the positioning pin 62, and a support spring is arranged between the bottom of the limiting ring 11 and the circular groove 9;

[0033] The length of the positioning pin 62 is less than the depth of the slot 10, so that when the support spring pushes the positioning pin 62 to the top of the slot 10, the positioning pin 62 completely enters the slot 10;

[0034] The bottom of the positioning pin 62 is processed with a rounded corner 12, the inner bottom wall of the slot 10 is processed with a circular surface 13 that fits the rounded corner 12, and the inner top wall of the slot 10 is processed with a guiding surface 14 for guiding the insertion of the positioning pin 62.

[0035] In this embodiment, since the moving component 6 needs to change the lifting point position of the steel rope according to the size of the workpiece, it needs to slide in the track groove 5. However, this also results in the positioning of the steel rope not being stable enough, making the workpiece prone to sliding during the lifting process and affecting the lifting stability of the workpiece.

[0036] Therefore, observing Figure 3 and Figure 5It can be found that a chute 8 wider than the track groove 5 is provided at the top of the track groove 5. Subsequently, a slide table 61 is slidably arranged in the chute 8, and a circular groove 9 is provided at the bottom of the slide table 61. A positioning pin 62 is inserted into the circular groove 9. At the same time, a slot 10 for inserting the positioning pin 62 is provided in the track groove 5, so that the moving assembly 6 can normally slide along the track groove 5 usually. When lifting a workpiece is required, due to the pulling of the weight of the workpiece, the steel rope drives the connecting plate 7 to move downward, thereby pulling out the positioning pin 62 in the slide table 61, and making the positioning pin 62 insert into the nearby slot 10, so that the slide table 61 cannot continue to slide, realizing the fixation of the steel rope suspension point, making the lifting and transportation of the workpiece more stable, and effectively improving the practicability of the sliding shaft assembly.

[0037] However, since the opening of the circular groove 9 faces downward, the positioning pin 62 will naturally slide downward under the action of gravity, resulting in the positioning pin 62 actively falling out of the circular groove 9 and inserting into the slot 10 when the slide table 61 moves, affecting the movement of the slide table 61, and thus affecting the position adjustment of the steel rope suspension point. Therefore, observe Figure 5 It can be found that a limiting ring 11 is provided at the top of the outer side wall of the positioning pin 62. At the same time, a support spring is provided between the bottom of the limiting ring 11 and the circular groove 9, so that the positioning pin 62 is retracted into the circular groove 9 under the push of the support spring to ensure the smoothness of the slide table 61 during movement.

[0038] However, since the steel rope, the connecting plate 7 and the positioning pin 62 all have weights, the support spring will be compressed and deformed, causing a part of the positioning pin 62 to protrude from the circular groove 9, affecting the smooth sliding of the slide table 61. Therefore, make the positioning pin 62 as Figure 5 shown. By making the length of the positioning pin 62 less than the depth of the circular groove 9, when the positioning pin 62 is pushed into the circular groove 9 by the support spring, it is completely retracted into the circular groove 9. At this time, even if the steel rope shakes and is slightly pulled, the positioning pin 62 will not protrude from the circular groove 9, further ensuring the smooth sliding of the slide table 61.

[0039] In a further preferred embodiment of the present invention, as Figure 4 shown, a limiting groove 15 is provided at the opening of the inner side wall of the chute 8, and a ball 16 is connected in the limiting groove 15 through a compression spring.

[0040] In this embodiment, since both the chute 8 and the track groove 5 penetrate through the load-bearing beam 4, the moving assembly 6 can be added as required, such as hanging multiple workpieces at the same time, or more suspension points are needed when the workpiece is large, etc. However, this method will cause the moving assembly 6 to easily come out when it moves to the edge of the track groove 5, increasing the complexity during workpiece lifting.

[0041] Therefore, observe Figure 4It can be found that a limit groove 15 is provided at the opening of the inner side wall of the sliding groove 8. At the same time, a ball 16 is connected in the limit groove 15 through a compression spring. The width of the current part is reduced by using the ball 16, so that when the moving component 6 moves to the edge of the track groove 5, it is blocked by the ball 16, which can prevent the moving component 6 from falling off. At the same time, the setting of the ball 16 and the compression spring will not affect the installation and disassembly of the moving component 6, which can further improve the practicability of the moving shaft.

[0042] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A sliding shaft assembly for a shot blasting machine, comprising a guide rail (1) and a pulley assembly (2) moving on the guide rail (1), characterized in that: The bottom of the pulley assembly (2) is fixedly connected to a connecting column (3), the bottom of the connecting column (3) is fixedly connected to a load-bearing beam (4), the bottom of the load-bearing beam (4) is provided with a track groove (5) along the length direction and is slidably connected to a moving assembly (6), and the bottom of the moving assembly (6) is connected to a connecting plate (7) for installing a suspension rope via a connecting rod.

2. A sliding shaft assembly for a shot blasting machine according to claim 1, characterized in that: The moving assembly (6) is mainly composed of a slide (61) and a positioning pin (62); a slide groove (8) is provided at the top of the track groove (5) and is slidably connected to the slide (61); a circular groove (9) is provided at the bottom of the slide (61) at a location of the track groove (5); a positioning pin (62) is inserted into the circular groove (9); and a plurality of slots (10) for inserting the positioning pins (62) are provided at equal intervals along the length direction at the top of the opening of the track groove (5).

3. A sliding shaft assembly for a shot blasting machine according to claim 2, characterized in that: The top of the outer wall of the positioning pin (62) is raised to form a limiting ring (11), and a supporting spring is arranged between the bottom of the limiting ring (11) and the circular groove (9).

4. A sliding shaft assembly for a shot blasting machine according to claim 3, characterized in that: The length of the positioning pin (62) is smaller than the depth of the slot (10), so that when the support spring pushes the positioning pin (62) to the top of the slot (10), the positioning pin (62) completely enters the slot (10).

5. The sliding shaft assembly for a shot blasting machine according to claim 2, characterized in that: The bottom of the positioning pin (62) is processed with a rounded corner (12), the inner bottom wall of the slot (10) is processed with a round surface (13) that fits the rounded corner (12), and the inner top wall of the slot (10) is processed with a guide surface (14) for guiding the insertion of the positioning pin (62).

6. A sliding shaft assembly for a shot blasting machine according to claim 2, characterized in that: A limiting groove (15) is provided at the opening of the inner side wall of the slide groove (8), and a ball (16) is connected in the limiting groove (15) via a compression spring.

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