Rotary wide scraper device of horizontal scraper discharging centrifugal machine

Abstract

The utility model discloses a rotary wide scraper device of a horizontal scraper discharge centrifuge, which relates to the technical field of cutters and comprises a cutter rest and a blade detachably connected with the cutter rest. Each blade single body is provided with at least one first clamping part and a second clamping part matched with the first clamping part, and the adjacent blade single bodies are connected in a clamped mode through the first clamping parts and the second clamping parts. The blade single bodies are fixed through the connecting pieces and the knife rest, the adjacent blade single bodies are clamped and fixed through the first clamping parts and the second clamping parts, mutual self-locking connection is achieved, the blade single bodies can be matched with the connecting pieces, the structural strength between the blade single bodies is further enhanced, and the service life of the blade single bodies is prolonged. Loosening of the blade single bodies caused by vibration during working of a machine is prevented, and the cutting stability of the blade is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutters, in particular to a rotary wide scraper device of a horizontal scraper unloading centrifuge. Background Art

[0002] The horizontal scraper unloading centrifuge is a fully automatic intermittent unloading filtering centrifuge. The scraper device is one of the important components of the automatic unloading centrifuge. It is used to scrape the cake material on the inner wall of the drum during unloading. The previous scraper was a whole piece of stainless steel plate. Once a gap appears at a certain position of the blade during assembly, use or transportation, the entire scraper will be scrapped directly.

[0003] In order to solve the above technical problems, a Chinese utility model patent with authorization announcement number CN202942977U discloses a scraper device for a horizontal scraper unloading centrifuge, which divides the blade into multiple independent blade monomers, and installs all the blade monomers on the blade holder to form a complete blade during installation. When a part of the blade is damaged, only the damaged part needs to be replaced. However, this solution has the following problems: Since the complete blade is split into multiple independent blade monomers, there are tiny connection gaps between adjacent blades. These tiny gaps will cause different degrees of vibration between the blade monomers due to the vibration of the blade when the centrifuge drum rotates at high speed, which can easily cause the blade to loosen, resulting in a decrease in the overall structural strength of the blade. Utility Model Content

[0004] The utility model aims to provide a rotary wide scraper device for a horizontal scraper unloading centrifuge, so as to solve the technical problem that the scrapers of horizontal scraper unloading centrifuges on the market currently adopt an integrated design, which leads to a decrease in the strength of the scraper structure and is prone to loosening.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary wide scraper device of a horizontal scraper unloading centrifuge, comprising a blade holder and a blade detachably connected to the blade holder, the blade comprising a plurality of blade monomers connected to each other, each of the blade monomers having at least one first clamping component and a second clamping component that cooperates with the first clamping component, and adjacent blade monomers are clamped to each other via the first clamping component and the second clamping component.

[0006] As a preferred technical solution of the utility model, the blade monomer comprises: a main body and a cutting portion arranged at one end of the main body, and a buffer portion is provided on the surface of the cutting portion.

[0007] As a preferred technical solution of the utility model, a first positioning hole is opened at one end of the tool holder, and a tail plate is provided on the side of the main body that fits with the tool holder, and the tail plate cooperates with the tail groove opened in the tool holder.

[0008] As a preferred technical solution of the utility model, the first engaging component is a protruding structure arranged at one end of the main body, the second engaging component is a slot opened at the other end of the main body, the protruding structure cooperates with the slot, the protruding structure is provided with a through hole, and the main body is provided with a second positioning hole matching the through hole at a corresponding position of the slot, the central axes of the second positioning hole, the through hole, and the third positioning hole opened on the tool holder are located on the same straight line, and a connecting piece is connected between the second positioning hole, the through hole and the third positioning hole.

[0009] As a preferred technical solution of the utility model, the protrusion structure includes:

[0010] A spring piece with a recessed groove, the spring piece is arranged at one end of the main body, and the recessed groove matches with a protrusion arranged on the inner wall of the slot;

[0011] A positioning plate is arranged at one end of the main body and close to the spring sheet, and the through hole is formed in the positioning plate.

[0012] As a preferred technical solution of the present utility model, a slope is arranged at the front end of the spring piece.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model divides the blade into a plurality of blade units so that the blade forms an integrated structure. When a part of the blade is damaged, only the damaged part needs to be replaced. At the same time, in addition to being fixed to the tool holder by a connecting piece, adjacent blade units are also fixed by a first clamping part and a second clamping part to achieve a self-locking connection with each other. The connecting piece can further strengthen the structural strength between the blade units, prevent the blade units from loosening due to vibration during operation of the machine, and effectively improve the cutting stability of the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the rear three-dimensional structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the rear three-dimensional structure of the utility model;

[0018] Figure 4 It is a schematic diagram of a partially cutaway three-dimensional structure of the utility model;

[0019] Figure 5 For the utility model Figure 4 The enlarged structural diagram at A in the middle;

[0020] Figure 6 It is a schematic diagram of the main three-dimensional structure of the utility model.

[0021] In the figure: 1, tool holder; 2, first positioning hole; 3, tail groove; 4, main body; 5, cutting part; 6, buffer part; 7, tail plate; 8, second positioning hole; 9, third positioning hole; 10, connecting piece; 11, spring piece; 12, slot; 13, protrusion; 14, recessed groove; 15, inclined surface; 16, positioning plate; 17, through hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] See also Figure 1-6 The utility model provides a technical solution: a rotary wide scraper device of a horizontal scraper unloading centrifuge, comprising a tool holder 1 and a blade detachably connected to the tool holder 1, the blade comprising a plurality of blade monomers connected to each other, in this embodiment, the blade monomer comprises: a main body 4 and a cutting portion 5 arranged at one end of the main body 4, a buffer portion 6 is provided on the surface of the cutting portion 5; a first positioning hole 2 is provided at one end of the tool holder 1, a tail plate 7 is provided on the side where the main body 4 fits with the tool holder 1, the tail plate 7 cooperates with the tail groove 3 provided on the tool holder 1, a second positioning hole 8 is provided on the surface of the main body 4, a third positioning hole 9 is provided on the side where the tool holder 1 fits with the main body 4, the third positioning hole 9 is a threaded hole, the third positioning hole 9 is connected with a connecting piece 10, the connecting piece 10 is a bolt, one end of the bolt passes through the second positioning hole 8 and is threadedly connected with the third positioning hole 9;

[0024] The above technical solution can be used to conveniently install the blade unit on the tool holder 1. During installation, the tail plate 7 of the main body 4 is aligned with the tail groove 3 of the tool holder 1 and inserted to ensure that the second positioning hole 8 on the surface of the main body 4 and the third positioning hole 9 on the surface of the tool holder 1 are aligned with each other. The connecting piece 10 is used to pass through the second positioning hole 8 and the third positioning hole 9 to be fixedly connected, so that the blade composed of the main body 4 can be fixed on the tool holder 1.

[0025] like Figure 4As shown, each blade monomer has at least one first engaging component and a second engaging component that cooperates with the first engaging component, and adjacent blade monomers are mutually engaged with each other through the first engaging component and the second engaging component; in this embodiment, the first engaging component is a protruding structure arranged at one end of the main body 4, and the second engaging component is a slot 12 opened at the other end of the main body 4, the protruding structure cooperates with the slot 12, and the protruding structure is provided with a through hole 17, and the central axes of the second positioning hole 8, the through hole 17 and the third positioning hole 9 are located on the same straight line; except that the outer end surfaces of the main body 4 at the outermost ends of the tool holder 1 are flat and smooth, one end of each main body 4 is provided with a first engaging component and a second engaging component, that is, each main body 4 is provided with two first engaging components and two second engaging components;

[0026] The above technical solution can be used to conveniently fix adjacent blade units. During installation, the protruding structure of one of the main bodies 4 is aligned with the slot 12 of the other main body 4 and inserted until the protruding structure is inserted to the maximum depth of the slot 12 to complete the pre-positioning. The above steps are repeated to fix all the main bodies 4 to each other to form a blade, and then the tail plate 7 of the main body 4 is aligned with the tail slot 3 of the tool holder 1 and inserted. The connecting piece 10 is used to pass through the second positioning hole 8, the through hole 17 and the third positioning hole 9 for fixed connection, so that the blade composed of the main body 4 is fixed on the tool holder 1.

[0027] like Figure 4 , Figure 5 and Figure 6 As shown, in this embodiment, the protrusion structure includes: a spring piece 11 with a concave groove 14, the spring piece 11 is arranged at one end of the main body 4, the concave groove 14 is matched with a protrusion 13 arranged on the inner wall of the slot 12; a positioning plate 16 arranged at one end of the main body 4 and close to the spring piece 11, and a through hole 17 is opened in the positioning plate 16; the front end of the spring piece 11 is provided with a slope 15;

[0028] The above technical solution can ensure that the connection between the blade monomers is more stable. During installation, the spring clip 11 of one of the main bodies 4 is aligned with the slot 12 of the other main body 4 and inserted. The inclined surface 15 at the front end of the spring clip 11 touches the protrusion 13, and the protrusion 13 presses the spring clip 11 to bend until the spring clip 11 is inserted to the maximum depth of the slot 12. The recessed groove 14 on the surface of the spring clip 11 and the protrusion 13 on the inner wall of the slot 12 are aligned with each other. At this time, the spring clip 11 is reset so that the recessed groove 14 and the protrusion 13 are engaged with each other to complete the pre-positioning. Due to the use of the spring clip 11, after the spring clip 11 is inserted into the slot 12, the recessed groove 14 on the surface of the spring clip 11 and the protrusion 13 on the inner wall of the slot 12 are aligned and engaged with each other, which can prevent the monomers from loosening easily after the pre-positioning. When disassembling, it is necessary to use appropriate force to pull the spring clip 11 out of the slot 12.

[0029] Working principle: During installation, align the spring piece 11 and the positioning plate 16 of one of the main bodies 4 with the slot 12 of the other main body 4 and insert them. The inclined surface 15 at the front end of the spring piece 11 touches the protrusion 13, and the protrusion 13 presses the spring piece 11 to bend until the spring piece 11 is inserted to the maximum depth of the slot 12. The recessed groove 14 on the surface of the spring piece 11 and the protrusion 13 on the inner wall of the slot 12 are aligned with each other. At this time, the spring piece 11 is reset so that the recessed groove 14 and the protrusion 13 are engaged with each other to complete the pre-positioning. Repeat the above steps to fix all the main bodies 4 to each other and combine them into a blade. Then, align the tail plate 7 of the main body 4 with the tail groove 3 of the tool holder 1 and insert it to ensure that the second positioning hole 8 on the surface of the main body 4 and the third positioning hole 9 on the surface of the tool holder 1 are aligned with each other. Use the connecting piece 10 to pass through the second positioning hole 8 and the through hole 17 in sequence and fix them with the third positioning hole 9, so that the blade composed of the main body 4 can be fixed on the tool holder 1.

[0030] In summary, the utility model divides the blade into multiple blade units so that the blade forms an integrated structure. When a part of the blade is damaged, only the damaged part needs to be replaced. At the same time, in addition to being fixed to the tool holder 1 by the connecting member 10, adjacent blade units are also fixed by the first locking member and the second locking member. The connecting member 10 can be used for more stable fixation, preventing the blade units from loosening due to vibration during machine operation, and effectively improving the structural strength of the blade.

[0031] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A rotary wide scraper device for a horizontal scraper discharge centrifuge, comprising a blade holder (1) and a blade detachably connected to the blade holder (1), wherein the blade comprises a plurality of blade units connected to each other, characterized in that: Each of the blade units has at least one first engaging component and a second engaging component that cooperates with the first engaging component, and adjacent blade units are engaged with each other via the first engaging component and the second engaging component.

2. The rotary wide scraper device of the horizontal scraper discharge centrifuge according to claim 1, characterized in that: The blade unit comprises: a main body (4) and a cutting portion (5) arranged at one end of the main body (4); a buffer portion (6) is provided on the surface of the cutting portion (5).

3. The rotary wide scraper device of the horizontal scraper discharge centrifuge according to claim 2, characterized in that: A first positioning hole (2) is provided at one end of the tool holder (1), and a tail plate (7) is provided on the side of the main body (4) that is in contact with the tool holder (1), wherein the tail plate (7) cooperates with a tail groove (3) provided on the tool holder (1).

4. The rotary wide scraper device of the horizontal scraper discharge centrifuge according to claim 2, characterized in that: The first engaging component is a protruding structure arranged at one end of the main body (4), and the second engaging component is a slot (12) opened at the other end of the main body (4). The protruding structure matches the slot (12), and the protruding structure is provided with a through hole (17). The main body (4) is provided with a second positioning hole (8) matching the through hole (17) at a corresponding position of the slot (12). The central axes of the second positioning hole (8), the through hole (17), and the third positioning hole (9) opened on the tool holder (1) are located on the same straight line, and a connecting piece (10) is connected between the second positioning hole (8), the through hole (17), and the third positioning hole (9).

5. The rotary wide scraper device of the horizontal scraper discharge centrifuge according to claim 4, characterized in that: The protrusion structure comprises: A spring piece (11) having a recessed groove (14), the spring piece (11) being arranged at one end of the main body (4), the recessed groove (14) being matched with a protrusion (13) arranged on the inner wall of the clamping groove (12); A positioning plate (16) is arranged at one end of the main body (4) and close to the spring sheet (11), and the through hole (17) is opened in the positioning plate (16).

6. The rotary wide scraper device of the horizontal scraper discharge centrifuge according to claim 5, characterized in that: The front end of the spring piece (11) is provided with an inclined surface (15).

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