Centrifugal impeller head

Abstract

The centrifugal impeller head comprises a shell, a shot inlet, an impeller, a transmission shaft, a front protective plate, a rear protective plate, side protective plates, a top protective plate and a cover plate, the shell and the shot inlet are integrally cast and formed, the front protective plate and the rear protective plate are arranged on the front side and the rear side of the interior of the shell respectively, and the side protective plates are arranged on the left side and the right side of the interior of the shell respectively. The top protection plate is arranged at the top opening of the shell, two first bolt holes are formed in each of the front side and the rear side of the shell and the front and rear protection plates, the front and rear protection plates are connected with the shell through first bolts, and second bolt holes are formed in each of the left side and the right side of the shell and the side protection plates; the side face protection plate is connected with the shell through a second bolt. Through the design of the shell and the projectile inlet which are integrally cast and formed, the number of bolts is remarkably reduced, the guard plate can be disassembled, assembled and replaced only through several bolts, the tedious bolt disassembling and assembling time is omitted, working hours are shortened, and then the replacement efficiency of the guard plate is improved.

Description

Technical Field

[0001] This utility model relates to the field of shot blasting technology, and in particular to a centrifugal shot blasting device. Background Technology

[0002] The shot blasting device is one of the core components of a shot blasting machine. It uses the centrifugal principle to throw steel shot at high speed onto the surface of the workpiece, thereby cleaning, removing rust, or strengthening the workpiece.

[0003] A shot blasting machine typically consists of several main components, such as a protective cover, impeller, protective plate, and drive mechanism. In the prior art, such as the shot blasting machine disclosed in patent CN212420955U, the protective cover and the directional sleeve pressure ring are provided with several bolt holes. The protective plate is connected to the inside of the protective cover by several bolts, and the directional sleeve pressure ring is also connected to the front side of the protective cover by several bolts.

[0004] Since the protective plate is a consumable part and needs to be replaced regularly, the protective cover often needs to be disassembled during the daily use of the shot blasting machine. The old protective plate is then removed and replaced with a new one. This process requires repeatedly disassembling and reassembling a large number of bolts, severely impacting the maintenance efficiency of the shot blasting machine, and therefore needs improvement. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model discloses a centrifugal shot blasting device, including an integrally cast shell, a shot inlet, an impeller, a drive shaft, front and rear guard plates, side guard plates, a top guard plate, and a cover plate. The impeller is rotatably disposed inside the shell. The drive shaft is drivenly connected to the impeller and is located on the rear side of the shell. The front and rear guard plates are respectively disposed on the front and rear sides inside the shell. The side guard plates are respectively disposed on the left and right sides inside the shell. The top guard plate is disposed at the top opening of the shell. The cover plate is disposed above the top opening of the shell. Two first bolt holes are provided on the front and rear sides of the shell and on the front and rear guard plates. The front and rear guard plates are connected to the shell by the first bolts. A second bolt hole is provided on the left and right sides of the shell and on the side guard plates. The side guard plates are connected to the shell by the second bolts.

[0006] Furthermore, the shell has right-angle strips on all four oblique sides inside, and the top of the right-angle strips is fixedly connected to the inner wall of the shell through a positioning plate. There is a gap between the right-angle strips and the two adjacent sides of the shell for positioning the front and rear guard plates and the side guard plates.

[0007] Furthermore, the side panels are provided with stepped sections on both sides.

[0008] Furthermore, a circular through hole is provided in the middle of the front and rear guard plates.

[0009] Further, the front and rear guard plates are provided with reinforcing ribs on the side facing the inner wall of the shell, and the side of the front and rear guard plates facing the impeller is smooth.

[0010] Further, the left and right sides of the shell are provided with a connecting block at the top, and the left and right sides of the cover plate are provided with a notch in correspondence, and the left and right sides of the cover plate are detachably connected with the top of the shell through a connecting assembly.

[0011] Further, the connecting assembly comprises a pin shaft, a connecting rod and a lifting ring, the bottom of the connecting rod is rotationally connected with the connecting block through the pin shaft, the top of the connecting rod is provided with external threads and penetrates the notch upward, and the bottom of the lifting ring is connected with the external threads through a nut and is pressed above the cover plate.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The shell and the bullet inlet are integrally cast, the number of bolts is significantly reduced, only a few bolts are needed to realize the dismounting and replacing of the guard plate, the complicated bolt dismounting time is saved, the working hours are shortened, and the replacing efficiency of the guard plate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor under the premise of the drawings.

[0015] Figure 1 It is the overall structure schematic diagram of the utility model;

[0016] Figure 2 It is the overall structure explosion drawing of the utility model;

[0017] Figure 3 It is Figure 1 It is the local structure enlarged view of A in the middle;

[0018] Figure 4 It is Figure 2 It is the local structure enlarged view of B in the middle

[0019] Reference signs:

[0020] 1-Shell, 2-Shot inlet, 3-Impeller, 4-Drive shaft, 5-Front and rear guard plates, 6-Side guard plates, 7-Top guard plate, 8-Cover plate, 9-Circular through hole, 10-Reinforcing rib, 11-First bolt hole, 12-First bolt, 13-Second bolt hole, 14-Second bolt, 15-Connecting block, 16-Notch, 17-Pin, 18-Connecting rod, 19-Lifting ring, 20-Nut, 21-Right angle strip, 22-Positioning plate, 23-Step section. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0024] In the description of the embodiments, unless otherwise expressly specified and limited, the terms "set," "connect," etc., should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or a connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] like Figures 1-2 As shown, the centrifugal shot blasting device in this embodiment includes an integrally cast housing 1, a shot inlet 2, an impeller 3, a drive shaft 4, front and rear guard plates 5, side guard plates 6, a top guard plate 7, and a cover plate 8. The impeller 3 is rotatably disposed inside the housing 1. The drive shaft 4 is connected to the impeller 3 and is located at the rear of the housing 1. The other end of the drive shaft 4 can be connected to a motor. The motor drives the impeller 3 to rotate inside the housing 1, thereby propelling the steel shot entering from the shot inlet 2 out at high speed through the opening at the bottom of the housing 1.

[0026] Front and rear guards 5 are respectively arranged on the left and right sides inside the shell 1, side guards 6 are respectively arranged on the left and right sides inside the shell 1, a top guard 7 is arranged at the top opening of the shell 1, and a cover plate 8 is arranged above the top opening of the shell 1, so as to protect the inner wall of the shell 1 through the above-mentioned guards.

[0027] The front and rear guards 5 are provided with circular through holes 9 at the middle positions thereof, respectively for the bullet inlet 2 and the transmission shaft 4 to pass through; the front and rear guards 5 are provided with reinforcing ribs 10 on the sides thereof facing the inner wall of the shell 1, and the sides of the front and rear guards 5 facing the impeller 3 are smooth.

[0028] Two first bolt holes 11 are arranged on the left and right sides of the shell 1 and the front and rear guards 5, the front and rear guards 5 are connected with the shell 1 through first bolts 12, one second bolt hole 13 is arranged on the left and right sides of the shell 1 and the side guards 6, and the side guards 6 are connected with the shell 1 through second bolts 14, so that six bolts are needed in total to realize the disassembly and assembly of the guards.

[0029] A connecting block 15 is arranged at the top position of each of the left and right sides of the shell 1, notches 16 are correspondingly arranged on the two sides of the cover plate 8, and the two sides of the cover plate 8 are detachably connected with the top of the shell 1 through a connecting assembly.

[0030] As shown in Figure 3 , the connecting assembly comprises a pin shaft 17, a connecting rod 18 and a lifting ring 19, the bottom of the connecting rod 18 is rotationally connected with the connecting block 15 through the pin shaft 17, the top of the connecting rod 18 is provided with external threads and penetrates the notch 16 upward, and the bottom of the lifting ring 19 is connected with the external threads through a nut 20 and is pressed above the cover plate 8.

[0031] The nut 20 is driven upward along the connecting rod 18 by rotating the lifting ring 19, and after the nut 20 is loosened from the top of the cover plate 8, the connecting rod 18 is turned outward to realize the separation of the cover plate 8 from the shell 1, so as to facilitate the replacement of the top guard 7. The lifting ring 19 also has the function of facilitating the lifting of the shot blaster, so as to install it on the shot blasting machine.

[0032] As shown in Figure 4 , four right-angled strips 21 are arranged at the four inclined edges inside the shell 1, the top of each right-angled strip 21 is fixedly connected with the inner wall of the shell 1 through a positioning plate 22, a gap for positioning the front and rear guards 5 and the side guards 6 is arranged between the two sides of the right-angled strip 21 adjacent to the shell 1, and the two sides of the side guard 6 are provided with stepped portions 23.

[0033] When the front and rear protective plates 5 are installed, the straight angle strips 21 are inserted into the gap between the straight angle strips 21 and the shell 1 from the bottom opening of the shell 1, and the two sides of the front and rear protective plates 5 are positioned in the gap. When the side protective plate 6 is installed, the straight angle strips 21 are also inserted into the gap between the straight angle strips 21 and the shell 1 from the bottom opening of the shell 1, and the stepped portion 23 is attached to the straight angle portion inside the straight angle strips 21, so that the positioning of the side protective plate 6 is realized, and the assembly of each protective plate and the shell 1 is realized under the joint action of the bolts and the straight angle strips 21.

[0034] In summary, the shell 1 and the projectile inlet 2 are integrally casted and formed, the number of bolts is significantly reduced, only a few bolts are needed to realize the disassembly and replacement of the protective plates, the complicated bolt disassembly time is saved, the working hours are shortened, and the replacement efficiency of the protective plates is improved.

[0035] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary technical personnel in the art; when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

Claims

1. A centrifugal-type shot blaster characterized by: The application relates to a shell and a bullet inlet, an impeller, a transmission shaft, front and back guards, side guards, a top guard and a cover plate which are integrally cast, the impeller is rotationally arranged in the shell, the transmission shaft is in transmission connection with the impeller and is located at the back side of the shell, the front and back guards are respectively arranged at the front and back sides of the shell, the side guards are respectively arranged at the left and right sides of the shell, the top guard is arranged at the top opening of the shell, the cover plate is arranged above the top opening of the shell, two first bolt holes are arranged on the front and back sides of the shell and the front and back guards, the front and back guards are connected with the shell through first bolts, one second bolt hole is arranged on the left and right sides of the shell and the side guards, and the side guards are connected with the shell through second bolts.

2. The centrifugal-type shot blaster according to claim 1, characterized by: The shell is provided with a right-angle strip at four inclined edges in the shell, the right-angle strip is fixedly connected with the inner wall of the shell through a positioning plate, and a gap for positioning the front and back guards and the side guards is arranged between the right-angle strip and two adjacent sides of the shell.

3. The centrifugal-type shot blaster according to claim 2, characterized in that: The side guards are provided with stepped portions on two sides.

4. The centrifugal-type shot thrower of claim 1, wherein: The front and back guards are provided with circular through holes at middle positions.

5. The centrifugal-type shot thrower of claim 1, wherein: The front and back guards are provided with reinforcing ribs on the sides facing the inner wall of the shell, and the sides facing the impeller are smooth.

6. The centrifugal-type shot thrower of claim 1, wherein: The top positions of the left and right sides of the shell are respectively provided with connecting blocks, the cover plate is provided with notches on two sides, and the cover plate is detachably connected with the top of the shell through connecting assemblies on two sides.

7. The centrifugal-type shot thrower of claim 6, wherein: The connecting assembly comprises a pin shaft, a connecting rod and a lifting ring, the bottom of the connecting rod is rotationally connected with the connecting block through the pin shaft, the top of the connecting rod is provided with external threads and penetrates the notches upwards, and the bottom of the lifting ring is connected with the external threads through a nut and is pressed above the cover plate.

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