Shot blasting wheel for shot blasting machine

Abstract

The utility model discloses a shot blasting wheel for a shot blasting machine, and relates to the technical field of shot blasting machines. The shot blasting wheel for the shot blasting machine comprises a front cover plate, a rear cover plate and blades, and anti-falling rods are welded on the lower surface of the front cover plate in an annular array mode. In order to overcome the defects that the length of a blade cannot be adjusted and the blade is of an integrated structure when the shot blasting wheel is used, the length of the whole blade can be conveniently adjusted by extending and retracting the blade top in the blade root, so that the spraying angle and the spraying speed of a cast object can be conveniently adjusted according to actual requirements, and the treatment efficiency and the treatment effect of the shot blasting machine are improved; through clamping connection of the blades and the clamping grooves, the blades can be conveniently disassembled, later replacement and maintenance are facilitated, the blades are limited through the anti-falling rods, the blades are prevented from being thrown out of the clamping grooves under the action of centrifugal force, collision caused by shaking of the blades is prevented, and the service life of the blades is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of shot blasting machines, in particular to a shot blasting wheel for a shot blasting machine. Background Art

[0002] In the shot blasting machine, the shot blasting wheel is driven by a motor to rotate rapidly, and at the same time, the projectiles (such as metal shots, sand particles, etc.) are accelerated to enter the wheel to form a high-speed jet. These high-speed jet projectiles impact the surface of the workpiece, removing surface oxide scale, welding slag, paint, dirt and other undesirable substances, thereby cleaning the surface, increasing the roughness or improving the fatigue resistance. However, the existing impeller still has the following defects when used:

[0003] 1. The blades are an integrated structure. Once the blades are damaged or worn, the entire impeller needs to be replaced, which increases the subsequent maintenance costs;

[0004] 2. The length of the blade cannot be adjusted. The blade length of the shot blasting wheel determines the injection angle and speed of the projectile when it leaves the impeller. Longer blades will provide greater centrifugal force, allowing the projectile to spray farther and cover a larger area. The blade length cannot be adjusted, resulting in inability to flexibly adjust under different workpieces or different processing requirements, affecting the processing efficiency and effect of the shot blasting machine.

[0005] Therefore, in order to solve the defects that the length of the blades of the shot blasting wheel cannot be adjusted when in use and the blades are an integrated structure, it is necessary to propose a shot blasting wheel for a shot blasting machine. Utility Model Content

[0006] The utility model aims to provide a shot blasting wheel for a shot blasting machine, which can adjust the length of the entire blade by extending the blade top in the blade root, and then adjust the spray angle and speed of the projectile according to actual needs, thereby increasing the processing efficiency and effect of the shot blasting machine. The blade can be easily disassembled through the engagement connection between the blade and the slot, which is convenient for later replacement and maintenance. The blade is limited by an anti-slip rod to prevent the blade from being thrown out of the slot due to centrifugal force, to prevent the blade from shaking and causing collisions, and to increase the service life of the blade, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A shot blasting wheel for a shot blasting machine comprises a front cover plate, a rear cover plate and blades, wherein an anti-slip rod is welded in a circular array on the lower surface of the front cover plate;

[0009] A shaft sleeve is welded at the center of the upper surface of the rear cover plate, and a blade disk and a hub are arranged outside the shaft sleeve in sequence. The upper surfaces of the blade disk and the hub are provided with slots adapted to the blades at equal intervals;

[0010] The blade comprises a blade root and a blade top, the blade root is connected with the clamping slot by clamping, the blade top is movably arranged at the front end of the blade root, and a positioning rod is detachably inserted through the rear end of the blade top.

[0011] Preferably, a pill outlet hole is provided at a position between the slots at the side end of the blade disk.

[0012] Preferably, a spherical clamping block is welded to the rear end of the blade root, and a limiting hole matched with the anti-dropping rod is opened in the spherical clamping block.

[0013] Preferably, the front end of the blade root is provided with adjustment holes at equal intervals, a positioning rod is detachably inserted into the adjustment hole, and a nut is threadedly connected to one end of the positioning rod located outside the adjustment hole.

[0014] Preferably, the anti-drop rod passes through the limiting hole and one end of the rear cover plate is snap-connected with a snap ring, and one end of the anti-drop rod located outside the snap ring is threadedly connected with a nut.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The shot blasting wheel for this shot blasting machine is connected by the engagement between the blade and the slot, which can facilitate the quick replacement of the blade when it is worn, damaged or needs to be adjusted, thereby reducing the equipment maintenance downtime, effectively extending the service life of the impeller, reducing maintenance costs, avoiding the decline in workpiece surface treatment effect or quality problems caused by blade problems, and improving production efficiency;

[0017] 2. The shot blasting wheel of this shot blasting machine can adjust the length of the entire blade by pulling the blade top in the blade root, and then accurately control the speed, angle and spray range of the projectile to meet the needs of surface treatment of workpieces of different sizes and shapes, reduce unnecessary energy loss and increase the treatment effect of the shot blasting machine;

[0018] 3. The shot blasting wheel used in this shot blasting machine can limit the blades through the anti-drop rod to prevent the blades from being thrown out of the impeller due to the centrifugal force during rotation, avoid the blades from shaking and colliding, and thus increase the service life of the blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front structural stereogram of the utility model;

[0020] Figure 2 This is a three-dimensional diagram of the back structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the disassembly of the front cover plate, the rear cover plate and the snap ring of the utility model;

[0022] Figure 4 This is a schematic diagram of the surface structure of the rear cover plate of the utility model;

[0023] Figure 5 This is a schematic diagram of the specific structure of the blade of the utility model.

[0024] In the figure: 1. front cover; 11. anti-slip rod; 2. rear cover; 21. shaft sleeve; 22. blade disk; 23. hub; 24. slot; 25. shot hole; 3. blade; 31. blade root; 311. adjustment hole; 32. blade top; 321. positioning rod; 33. spherical block; 331. limit hole; 4. snap ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] To solve the technical problem of how to assemble the impeller, please refer to Figure 1-Figure 4 , this embodiment provides the following technical solutions:

[0027] A shot blasting wheel for a shot blasting machine comprises a front cover plate 1, a rear cover plate 2 and blades 3. An anti-drop rod 11 is welded in a circular array on the lower surface of the front cover plate 1, a shaft sleeve 21 is welded at the center of the upper surface of the rear cover plate 2, a blade disk 22 and a hub 23 are sequentially arranged outside the shaft sleeve 21, and slots 24 that are compatible with the blades 3 are equidistantly provided on the upper surfaces of the blade disk 22 and the hub 23, and a shot outlet hole 25 is provided at a position between the slots 24 at the side end of the blade disk 22.

[0028] A spherical clamping block 33 is welded to the rear end of the blade root 31, and a limiting hole 331 adapted to the anti-dropping rod 11 is opened in the spherical clamping block 33. The anti-dropping rod 11 passes through the limiting hole 331 and is clamped with a clamping ring 4 at one end of the rear cover plate 2. A nut is threadedly connected to the end of the anti-dropping rod 11 located outside the clamping ring 4.

[0029] Specifically, the blades 3 are first inserted into the slots 24 one by one, and then the anti-slip rod 11 is aligned with the limiting hole 331 and inserted until the end of the anti-slip rod 11 passes through the rear cover plate 2. At this time, the front cover plate 1 covers the entire upper surface of the hub 23 and the blades 3, and then the retaining ring 4 is engaged with the end of the anti-slip rod 11, and finally the nut is tightened on the end of the anti-slip rod 11 to complete the assembly of the impeller.

[0030] It should be noted that the shot hole 25 is provided to facilitate the projectiles (such as steel shot, gravel, etc.) to enter the hub 23 from the sleeve 21, then roll down to the surface of the blade 3, and finally be thrown out from the end of the blade 3;

[0031] The spherical clamping block 33 is provided to clamp the blade 3 with the blade disk 22, thereby improving the firmness of fixing the blade 3 and preventing the blade 3 from shaking when rotating;

[0032] The anti-slip rod 11 is provided to limit the blade 3 to prevent the spherical block 33 from slipping due to the centrifugal force when the blade 3 rotates, thereby improving the stability of the blade 3.

[0033] To solve the technical problem of how to adjust the length of the blade, please refer to Figure 5 , this embodiment provides the following technical solutions:

[0034] The blade 3 includes a blade root 31 and a blade top 32. The blade root 31 is engaged with the slot 24. The blade top 32 is movably arranged at the front end of the blade root 31. A positioning rod 321 is detachably inserted through the rear end of the blade top 32. Adjustment holes 311 are equidistantly provided at the front end of the blade root 31. The positioning rod 321 is detachably inserted into the adjustment hole 311. A nut is threadedly connected to one end of the positioning rod 321 located outside the adjustment hole 311.

[0035] Specifically, when it is necessary to adjust the length of the blade 3, pull out the blade top 32 inside the blade root 31, adjust the length of the blade top 32 outside the blade root 31, and then adjust the length of the entire blade 3 until the length is appropriate, then pass the positioning rod 321 through the matching adjustment hole 311 to limit the blade top 32, and finally tighten the nuts on the upper and lower ends of the positioning rod 321.

[0036] Working principle: When using the shot blasting wheel for the shot blasting machine, first adjust the length of the blade 3 according to actual needs, pull out the blade top 32 in the blade root 31, adjust the length of the blade top 32 outside the blade root 31, and then adjust the length of the entire blade 3, and then use the positioning rod 321 to fix the blade root 31 and the blade top 32, and then insert the blades 3 into the slots 24 one by one, align the anti-slip rod 11 with the limiting hole 331 and insert it until the end of the anti-slip rod 11 passes through the rear cover 2. At this time, the front cover 1 is only attached to the upper surface of the blade 3 and the hub 23, and then the retaining ring 4 is engaged with the end of the anti-slip rod 11, and finally the nut is tightened on the end of the anti-slip rod 11 to realize the assembly of the entire shot blasting wheel.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shot blasting wheel for a shot blasting machine, comprising a front cover plate (1), a rear cover plate (2) and blades (3), characterized in that: The lower surface of the front cover plate (1) is welded with anti-drop rods (11) in a circular array; A shaft sleeve (21) is welded at the center of the upper surface of the rear cover plate (2), and a blade disk (22) and a wheel hub (23) are arranged outside the shaft sleeve (21) in sequence, and slots (24) adapted to the blades (3) are equidistantly formed on the upper surfaces of the blade disk (22) and the wheel hub (23); The blade (3) comprises a blade root (31) and a blade top (32); the blade root (31) is engaged with the slot (24); the blade top (32) is movably arranged at the front end of the blade root (31); and a positioning rod (321) is detachably inserted through the rear end of the blade top (32).

2. The shot blasting wheel for a shot blasting machine according to claim 1, characterized in that: A pill outlet hole (25) is provided at a position between the clamping grooves (24) at the side end of the blade disc (22).

3. The shot blasting wheel for a shot blasting machine according to claim 1, characterized in that: A spherical clamping block (33) is welded to the rear end of the blade root (31), and a limiting hole (331) adapted to the anti-drop rod (11) is provided in the spherical clamping block (33).

4. The shot blasting wheel for a shot blasting machine according to claim 1, characterized in that: Adjustment holes (311) are equidistantly provided at the front end of the blade root (31), a positioning rod (321) is detachably inserted into the adjustment hole (311), and a nut is threadedly connected to one end of the positioning rod (321) located outside the adjustment hole (311).

5. The shot blasting wheel for a shot blasting machine according to claim 1, characterized in that: The anti-drop rod (11) passes through the limiting hole (331) and one end of the rear cover plate (2) is snap-connected with a snap ring (4), and one end of the anti-drop rod (11) located outside the snap ring (4) is threadedly connected with a nut.

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