Multi-protection combined throwing head for reshaping machine impeller

Abstract

A multi-protection combined material throwing head for an impeller of a shaping machine comprises an impeller material throwing head, an impeller body material throwing head fixing rib plate and an impeller protection block, and the impeller material throwing head is sequentially composed of a main impeller material throwing head, an auxiliary impeller material throwing head and an impeller body protection material throwing head from outside to inside. The combined throwing head fixing bolt sequentially penetrates through the impeller protection block, the impeller body throwing head fixing rib plate, the impeller body protection throwing head, the impeller auxiliary throwing head and the impeller main throwing head to fix the impeller protection block, the impeller body throwing head fixing rib plate, the impeller body protection throwing head, the impeller auxiliary throwing head and the impeller main throwing head together. An impeller main throwing head hard alloy block is embedded in the abrasion face of the impeller main throwing head. According to the rotor impeller of the shaper, multiple protection effects on the rotor impeller body of the shaper can be achieved, the major quality accident that the rotor impeller body of the shaper is abraded and scrapped is prevented, the service life of the rotor impeller of the shaper is greatly prolonged, and the overhaul frequency of the impeller is reduced.

Description

Technical Field

[0001] The utility model patent relates to an impeller on an impact shaping machine rotor, and in particular to a new type of multi-protection combined throwing head structure used on the impeller of the impact shaping machine rotor. Background Art

[0002] Most of the existing throwing heads used on the rotor impellers of the impact shaping machines for sand and gravel aggregates and machine-made sand are made of low-carbon alloy steel to produce the hammer handle of the throwing head. In order to make the hammer handle suitable for planing grooves, the hammer handle is generally normalized, and then the alloy block brazing groove is planed out, and the carbide block is firmly brazed on the hammer handle of the throwing head. The throwing head is very easy to wear and fail under the extrusion and scouring of the strong material flow of the crushed material. Since the carbide is only embedded in the working part of the top of the throwing head, after the carbide on the working surface of the throwing head is worn out or the carbide partially falls off, the hammer handle of the throwing head will soon wear out due to its non-wear resistance, and lose its protective effect on the impeller body. If the use of the impeller throwing head is not checked in time, the fixing rib plate of the throwing head on the rotor impeller will be worn through and worn out when the shaping machine is working continuously, resulting in a major quality accident in which the rotor impeller of the shaping machine is scrapped as a whole. Summary of the invention

[0003] The purpose of the utility model is to provide a multi-protection combined throwing head for the impeller of a shaping machine, so as to overcome the serious quality problem in the prior art that when the carbide block of the main throwing head of the shaping machine is severely worn or falls off, the hammer handle of the throwing head wears too quickly and is not replaced in time, causing the fixing rib plate of the throwing head to be worn out, resulting in the overall scrapping of the rotor impeller of the shaping machine.

[0004] The purpose of the utility model is achieved by the following methods:

[0005] A multi-protection combined throwing head for an impeller of a shaping machine comprises an impeller throwing head, an impeller body throwing head fixing rib plate and an impeller protection block. The impeller throwing head is composed of an impeller main throwing head, an impeller auxiliary throwing head and an impeller body protection throwing head from the outside to the inside. The combined throwing head fixing bolts pass through the impeller protection block, the impeller body throwing head fixing rib plate, the impeller body protection throwing head, the impeller auxiliary throwing head and the impeller main throwing head in sequence to fix the impeller protection block, the impeller body throwing head fixing rib plate, the impeller body protection throwing head, the impeller auxiliary throwing head and the impeller main throwing head together. A hard alloy block of the impeller main throwing head is embedded in the wear surface of the impeller main throwing head.

[0006] The above-mentioned shaping machine impeller multi-protection combined throwing head, the impeller main throwing head includes an impeller throwing head hammer handle and a cemented carbide block, wherein the cemented carbide block is embedded in the wear surface of the medium carbon alloy steel hammer handle.

[0007] The above-mentioned shaping machine impeller multi-protection combined throwing head, the impeller auxiliary throwing head and the impeller body protection throwing head have the impeller auxiliary throwing head hard alloy block and the impeller body protection throwing head hard alloy block embedded in the wear surface respectively.

[0008] The above-mentioned shaping machine impeller multi-protection combined throwing head, the impeller main throwing head hard alloy block, the impeller auxiliary throwing head hard alloy block and the impeller body protection throwing head hard alloy block are respectively brazed on the corresponding impeller main throwing head, impeller auxiliary throwing head and impeller body protection throwing head.

[0009] The above-mentioned shaping machine impeller has a multiple protection combined throwing head, and the fixing bolts of the combined throwing head are hexagonal bolts.

[0010] The above-mentioned shaping machine impeller multi-protection combined throwing head, the impeller main throwing head hard alloy block, the impeller auxiliary throwing head hard alloy block and the impeller body protection throwing head hard alloy block are all made of tungsten-cobalt hard alloy YG7 or YG8.

[0011] The above-mentioned shaping machine impeller multi-protection combined throwing head, the impeller throwing head hammer handle is made of medium carbon alloy steel.

[0012] Compared with the prior art, the utility model has the following technical effects:

[0013] The utility model adopts three combined throwing head structures, and hard alloy blocks are embedded in the three throwing heads, which can play a multiple protection role on the impeller body of the shaping machine, prevent the occurrence of major quality accidents such as the rotor impeller body of the shaping machine being worn out and scrapped, greatly extend the service life of the rotor impeller of the shaping machine, reduce the number of impeller overhauls, reduce the equipment operation cost, and alleviate the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model.

[0015] Figure 2 This is a reference diagram for the use status of the utility model. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention.

[0017] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] The following is combined with Figure 1-Figure 2 The structure and working process of the utility model are specifically described in detail.

[0021] like Figure 1 The illustrated embodiment shows a shaping machine impeller multi-protection combined ejector head, comprising an impeller ejector head, an impeller body ejector head fixing rib plate 6 and an impeller protection block 5, wherein the impeller ejector head is composed of an impeller main ejector head 1, an impeller auxiliary ejector head 2 and an impeller body protection ejector head 3 from the outside to the inside, and the combined ejector head fixing bolts 4 pass through the impeller protection block 5, the impeller body ejector head fixing rib plate 6, the impeller body protection ejector head 3, the impeller auxiliary ejector head 2 and the impeller main ejector head 1 in sequence to fix the impeller protection block 5, the impeller body ejector head fixing rib plate 6, the impeller body protection ejector head 3, the impeller auxiliary ejector head 2 and the impeller main ejector head 1 together, and a main impeller ejector head carbide block 7 is embedded in the wear surface of the impeller main ejector head 1.

[0022] The utility model discloses a shaping machine impeller multi-protection combined throwing head, wherein the impeller main throwing head 1 comprises an impeller throwing head hammer handle 8 and a cemented carbide block 7, wherein the cemented carbide block 7 is embedded in the wear surface of the medium carbon alloy steel hammer handle 8.

[0023] The utility model discloses a shaping machine impeller multi-protection combined throwing head, wherein the impeller auxiliary throwing head and the impeller body protection throwing head have wear surfaces respectively embedded with an impeller auxiliary throwing head hard alloy block and an impeller body protection throwing head hard alloy block.

[0024] The utility model discloses a shaping machine impeller multi-protection combined throwing head, wherein the impeller main throwing head hard alloy block, the impeller auxiliary throwing head hard alloy block and the impeller body protection throwing head hard alloy block are respectively brazed on the corresponding impeller main throwing head, the impeller auxiliary throwing head and the impeller body protection throwing head.

[0025] The utility model discloses a multi-protection combined material throwing head for the impeller of a shaping machine, wherein the fixing bolts 4 of the combined material throwing head are hexagonal bolts.

[0026] The utility model discloses a shaping machine impeller multi-protection combined throwing head, wherein the impeller main throwing head hard alloy block, the impeller auxiliary throwing head hard alloy block and the impeller body protection throwing head hard alloy block are all made of tungsten-cobalt hard alloy YG7 or YG8.

[0027] The utility model discloses a shaping machine impeller multi-protection combined throwing head, wherein the hammer handle of the impeller throwing head is made of medium carbon alloy steel.

[0028] The working process of the utility model is as follows:

[0029] The utility model designs a throwing head originally installed on the impeller of the rotor of the shaping machine into a combined throwing head structure with multiple protections for the impeller of the shaping machine. The impeller originally only installed with one main throwing head is designed to be installed with an impeller main throwing head 1, an impeller auxiliary throwing head 2, and an impeller body protection throwing head 3, which has multiple protections for the impeller of the shaping machine. In this way, when the alloy block of the main throwing head is seriously worn or falls off, the auxiliary throwing head replaces the main throwing head to withstand the strong scouring of the material flow thrown out at high speed from the impeller throwing port. Generally, the service life of the auxiliary throwing head is similar to that of the main throwing head, so that the damage of the main throwing head can be discovered in time and the main throwing head can be replaced. When the worn throwing head has not been replaced in time, that is, the auxiliary throwing head is also seriously worn, the impeller body protection throwing head 3 plays the role of the throwing head at this time, and the impeller body throwing head fixing rib plate 6 is protected as the last line. In this way, the three-line combined throwing head installed on the impeller can play a multiple protective role on the impeller body, reduce the number of major repairs of the shaping machine impeller, and greatly extend the service life of the shaping machine rotor impeller.

[0030] The arrangement direction of the cemented carbide blocks on the three combined throwing heads is analyzed by computer simulation, so that each row of cemented carbide can timely serve as a protective wall for the material flow and gradually play a protective role on the impeller body.

[0031] The carbide block on the throwing head is generally fixed to the throwing head hammer handle by brazing. This combination of throwing head hammer handle can reduce the thickness of the hammer handle structure and is also conducive to the brazing operation of the carbide block.

[0032] like Figure 2As shown, in the case of normal production of the shaping machine, the main impeller throwing head 1 is mainly used, which is the most important working part of the impeller throwing port. Under normal operation, the main impeller throwing head 1 is replaced. The impeller auxiliary throwing head 2 and the impeller body protection throwing head 3 are normally hidden behind the impeller main throwing head 1 as backup working parts, and play their role in protecting the impeller body under special circumstances.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be regarded as the protection scope of the present invention.

Claims

1. A multi-protection combined impeller throwing head for a shaping machine, comprising an impeller throwing head, an impeller body throwing head fixing rib plate (6) and an impeller protection block (5), characterized in that: The impeller ejector head is composed of an impeller main ejector head (1), an impeller auxiliary ejector head (2), and an impeller body protection ejector head (3) from the outside to the inside. The combined ejector head fixing bolt (4) passes through the impeller protection block (5), the impeller body ejector head fixing rib plate (6), the impeller body protection ejector head (3), the impeller auxiliary ejector head (2), and the impeller main ejector head (1) in sequence, fixing the impeller protection block (5), the impeller body ejector head fixing rib plate (6), the impeller body protection ejector head (3), the impeller auxiliary ejector head (2), and the impeller main ejector head (1) together. The wear surface of the impeller main ejector head (1) is embedded with an impeller main ejector head hard alloy block (7).

2. The multi-protection combined throwing head for impellers of shaping machines according to claim 1 is characterized in that: The impeller main throwing head (1) comprises an impeller throwing head hammer handle (8) and a hard alloy block (7), wherein the hard alloy block (7) is embedded in the wear surface of the medium carbon alloy steel hammer handle (8).

3. The multi-protection combined throwing head for impeller of shaping machine according to claim 1 is characterized by: The wear surfaces of the impeller auxiliary throwing head and the impeller body protection throwing head are respectively embedded with an impeller auxiliary throwing head hard alloy block and an impeller body protection throwing head hard alloy block.

4. The multi-protection combined throwing head for the impeller of the shaping machine according to claim 3 is characterized by: The impeller main throwing head hard alloy block, the impeller auxiliary throwing head hard alloy block and the impeller body protection throwing head hard alloy block are respectively brazed on the corresponding impeller main throwing head, the impeller auxiliary throwing head and the impeller body protection throwing head.

5. The multi-protection combined throwing head for impeller of shaping machine according to claim 1 is characterized by: The combined material throwing head fixing bolt (4) is a hexagon socket bolt.

6. The multi-protection combined throwing head for the impeller of the shaping machine according to claim 3 is characterized by: The impeller main throwing head hard alloy block, the impeller auxiliary throwing head hard alloy block and the impeller body protection throwing head hard alloy block are all made of tungsten-cobalt hard alloy YG7 or YG8.

7. The multi-protection combined throwing head for the impeller of the shaping machine according to claim 2 is characterized by: The material of the impeller throwing head hammer handle is medium carbon alloy steel.

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