Hammer crusher for metal additive production

Abstract

The invention relates to the technical field of metal processing equipment, and provides a hammer crusher for metal additive production, the hammer crusher comprises a machine body, the machine body is provided with a crushing cavity as well as a feed port and a discharge port which are communicated with the crushing cavity, and a rotor located in the crushing cavity is rotatably connected in the machine body; the multiple screen bars are arranged in the crushing cavity at intervals in the axis direction of the rotor, the screen bars are in an arc shape and located below the rotor, and a screen seam is formed between every two adjacent screen bars; the cleaning rod is arranged below the screen bars in a sliding mode in the extending direction of the screen bars, a plurality of cleaning protrusions penetrating through the screen seams upwards are arranged on the cleaning rod and correspond to the screen seams in a one-to-one mode, and after the cleaning rod slides, the cleaning protrusions slide in the extending direction of the screen seams so as to clean materials blocked in the screen seams. By means of the technical scheme, the technical problem that in the prior art, after a sieve plate in a hammer crusher is blocked, cleaning is inconvenient is solved.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of metal processing equipment, and more specifically, to a hammer crusher for producing metal additives. Background Art

[0002] During the production of metal additives, the hammer crusher is the main crushing equipment used. Its working principle is to impact and crush metal raw materials (such as metal ingots, alloy blocks, surface treatment particles, etc.) through high-speed rotating hammers, and use a sieve plate to screen the crushed materials to control the particle size. However, due to the high hardness and irregular geometric shapes of metal additive raw materials, large pieces of materials, flaky materials, or materials with surface treatment agents generated during the crushing process are likely to remain in the gaps between the sieve bars of the sieve plate, resulting in sieve plate blockage.

[0003] The cleaning method of existing hammer crushers relies on disassembling the sieve plate after stopping the machine, and removing the blockages by means such as knocking, flushing, or mechanical dredging. This process not only causes production interruption, is time-consuming and laborious, but also has problems such as incomplete cleaning leading to material contamination, sieve plate stress deformation, and increased wear of equipment components, seriously affecting the production efficiency and product quality of metal additives. In addition, automated cleaning devices (such as vibrating sieve plates) designed for high-hardness and high-viscosity materials often have defects such as low cleaning efficiency, fast component wear, and insufficient reliability, and are difficult to meet the requirements of continuous operation and fine control of equipment in metal additive production. Summary of the Invention

[0004] To overcome the above defects, embodiments of the present invention provide a hammer crusher for producing metal additives, which solves the technical problem of inconvenient cleaning of the sieve plate inside the hammer crusher in the prior art.

[0005] According to one aspect, at least one embodiment of the present invention provides a hammer crusher for producing metal additives, including: A machine body, the machine body having a crushing chamber and a feed port and a discharge port communicating with the crushing chamber, and a rotor rotatably connected in the machine body and located in the crushing chamber; Sieve bars, a plurality of sieve bars are arranged at intervals along the axis direction of the rotor in the crushing chamber, the sieve bars are arc-shaped and located below the rotor, and a sieve gap is formed between two adjacent sieve bars; A cleaning rod, the cleaning rod is slidably arranged below the sieve bars along the extending direction of the sieve bars, the cleaning rod has a plurality of cleaning protrusions penetrating upward through the sieve gaps, and the plurality of cleaning protrusions correspond to the plurality of sieve gaps one by one. After the cleaning rod is arranged to slide, the cleaning protrusions slide along the extending direction of the sieve gaps to clean the materials blocked in the sieve gaps.

[0006] For example, in a hammer crusher for producing metal additives provided by at least one embodiment of the present invention, the cleaning rod is slidably and rotatably arranged in the crushing chamber. A plurality of groups of cleaning protrusions are arranged circumferentially along the cleaning rod. When the cleaning rod slides along the extension direction of the sieve bars, the plurality of groups of cleaning protrusions sequentially slide past the sieve slots to push the materials blocked in the sieve slots upward into the crushing chamber from the bottom.

[0007] For example, in a hammer crusher for producing metal additives provided by at least one embodiment of the present invention, arc-shaped slideways capable of guiding the sliding of the ends of the cleaning rod are provided on both side walls of the machine body. A rack having the same radian as the arc-shaped slideway is arranged outside the machine body; the two ends of the cleaning rod respectively extend out of the machine body, and gear teeth are provided at the outer ends of the cleaning rod, and the gear teeth are engaged with the rack so that the cleaning rod can rotate when sliding.

[0008] For example, in a hammer crusher for producing metal additives provided by at least one embodiment of the present invention, a sliding frame is also slidably connected to the outside of the machine body in the horizontal direction. A vertical slideway is provided in the sliding frame. A connecting portion slidably connected to the vertical slideway is provided at the end of the cleaning rod, and the connecting portion can vertically slide along the vertical slideway under the driving of the sliding of the sliding frame so that the cleaning rod can slide along the arc-shaped slideway.

[0009] For example, in a hammer crusher for producing metal additives provided by at least one embodiment of the present invention, a connecting plate is further included. The same ends of a plurality of the sieve bars are connected to the connecting plate to form a sieve plate; an arc-shaped mounting frame is slidably connected to the machine body along the axis direction of the rotor. An installation space penetrating up and down is provided on the arc-shaped mounting frame. The sieve plate is detachably arranged in the installation space, and the arc-shaped mounting frame is arranged to be able to drive the sieve plate to move out of or into the crushing chamber after sliding.

[0010] For example, in a hammer crusher for producing metal additives provided by at least one embodiment of the present invention, an arc-shaped sliding cavity communicating with the installation space is provided on the arc-shaped mounting frame. The connecting plate is slidably arranged in the arc-shaped sliding cavity. After the connecting plate slides into the arc-shaped sliding cavity, a plurality of the sieve bars slide synchronously to form a discharge port between the connecting plate and the inner wall of the other end of the installation space, and the discharge port is used for emptying the materials in the crushing chamber.

[0011] For example, in a hammer crusher for producing metal additives provided by at least one embodiment of the present invention, a clamping portion is provided on the side of the connecting plate away from the sieve bars. A clamping block is slidably connected in the arc-shaped sliding cavity. A clamping groove is provided on the side of the clamping block close to the connecting plate. The clamping portion is clamped with the clamping groove so that the clamping block can drive the connecting plate to slide when sliding in the arc-shaped sliding cavity.

[0012] For example, in a hammer crusher for producing metal additives provided by at least one embodiment of the present invention, it further includes: A wire winding rod rotatably arranged on the arc-shaped mounting frame, the axis of the wire winding rod being parallel to the length direction of the clamping block. The wire winding rod has a plurality of traction wires arranged at intervals along the axial direction. Both ends of the traction wire are respectively connected to the wire winding rod and the clamping block. The wire winding rod is arranged such that after rotation, the traction wire is wound around the outer circumference of the wire winding rod to traction the clamping block to slide in the arc-shaped sliding cavity; An elastic member arranged in the arc-shaped sliding cavity, with both ends of the elastic member respectively acting on the inner wall of the arc-shaped sliding cavity and the clamping block, for elastically pushing the clamping block so that the clamping block slides towards the outside of the arc-shaped sliding cavity and drives the sieve plate to move into the installation space.

[0013] For example, in a hammer crusher for producing metal additives provided by at least one embodiment of the present invention, one end of the wire winding rod extends out of the arc-shaped mounting frame and has an operation part, and the operation part is connected to the arc-shaped mounting frame through a fastener; A plurality of positioning holes are circumferentially formed on the side wall of the arc-shaped mounting frame along the operation part, a connection hole is provided on the operation part, and the fastener passes through the connection hole and one of the positioning holes for restricting the position of the operation part relative to the arc-shaped mounting frame.

[0014] For example, in a hammer crusher for producing metal additives provided by at least one embodiment of the present invention, the side wall of the machine body has a lapping part, and it further includes: A limiting plate, the top of the limiting plate lapping with the lapping part, and one side of the limiting plate abuting against the side wall of the machine body and the side wall of the arc-shaped mounting frame for preventing the arc-shaped mounting frame from sliding out of the machine body.

[0015] The beneficial effects of the embodiments of the present invention are: In the present invention, the arc-shaped structure of the sieve bars enables the inner arc surface to conform to the circumferential movement track of the material. When the material moves along the tangent direction to the sieve bars, it can slide, reducing material jamming caused by hitting the edge of the sieve bars; the sieve bars are arranged at intervals along the axis of the rotor, and the extending direction of the formed sieve gaps is the same as the tangent movement direction of the material (circumferential direction), avoiding the material from being horizontally embedded in the sieve gaps. The arc-shaped track of the sliding cleaning rod is concentric with the sieve bars, and the cleaning protrusions match the sieve gaps. When sliding, it can synchronously move along the length direction of the sieve gaps and extend into the sieve gaps to remove the retained material, realizing the synchronous progress of the crushing and cleaning processes without stopping the machine to disassemble the sieve plate, ensuring the continuous operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only some exemplary embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on the content of the exemplary embodiments of the present invention and these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of a hammer crusher for the production of metal additives in an embodiment of the present invention; Figure 2 For Figure 1 It is a schematic diagram of the internal structure of a hammer crusher for the production of metal additives in the embodiment; Figure 3 For Figure 2 It is an enlarged view at position A in Figure 4 For Figure 1 It is an enlarged view at position B in Figure 5 For Figure 1 It is a schematic diagram of the structure where the sieve plate is installed on the arc-shaped mounting frame in the embodiment; Figure 6 For Figure 1 It is a schematic diagram of the sieve plate structure in the embodiment; Figure 7 For Figure 1 It is a schematic diagram of the arc-shaped mounting frame structure in the embodiment; Figure 8 For Figure 1 It is a schematic diagram of the structure of the sieve plate and the arc-shaped mounting frame when the discharge port is opened in the embodiment; Figure 9 For Figure 1 It is a schematic diagram of the internal structure of the arc-shaped mounting frame in the embodiment; Figure 10 For Figure 9 It is an enlarged view at position C in Figure 11 For Figure 5 It is an enlarged view at position D in Figure 12 For Figure 1 It is a schematic diagram of the result after adding a limiting plate to a hammer crusher for the production of metal additives in the embodiment; Figure 13 For Figure 12 It is an enlarged view at position E in

[0018] In the figure: 1. Machine body, 11. Crushing cavity, 12. Feeding port, 13. Discharging port, 14. Rotor, 2. Sieve bar, 21. Sieve slot, 3. Cleaning rod, 31. Cleaning protrusion, 15. Arc-shaped slideway, 16. Rack, 32. Gear teeth, 33. Connecting part, 4. Sliding frame, 41. Vertical slideway, 5. Connecting plate, 51. Sieve plate, 6. Arc-shaped mounting bracket, 61. Mounting space, 62. Arc-shaped sliding cavity, 63. Discharge port, 52. Clamping part, 64. Clamping block, 641. Clamping groove, 7. Wire winding rod, 71. Traction wire, 8. Elastic part, 72. Operating part, 65. Positioning hole, 66. Fastener, 17. Lapping part, 9. Limiting plate. Detailed implementation manners The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention.

[0019] To make the drawings concise, only the parts related to the disclosure are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation, and "several" includes "two" and "more than two".

[0020] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the first feature is at a lower horizontal height than the second feature.

[0022] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", and "right" are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0023] In addition, in the description of this application, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0024] As Figures 1 to 3 shown, it shows a hammer crusher for producing metal additives in an embodiment of the present invention. A crushing chamber 11 is formed inside the machine body 1. There is a feed inlet 12 at the top and a discharge outlet 13 at the bottom, both of which are communicated with the crushing chamber 11. The rotor 14 is rotatably installed in the crushing chamber 11 through bearings, and its axis extends in the horizontal direction. A number of screen bars 2 are of arc-shaped structures, and the centers of their arcs are concentric with the rotation center of the rotor 14. They are arranged at intervals along the axis direction of the rotor 14 and distributed below the rotor 14. The inner arc surfaces face the outer peripheral surface of the rotor 14. Adjacent screen bars 2 form screen slots 21, and the extending direction of the screen slots 21 is perpendicular to the axis of the rotor 14. Both ends of the cleaning rod 3 are installed on the side wall of the machine body 1 through sliding structures and can reciprocally slide in the crushing chamber 11 along the arc extending direction of the screen bars 2. Cleaning protrusions 31 corresponding to the screen slots 21 one by one are provided on the rod body and are matched with the screen slots 21, and can extend into the screen slots 21 from below and slide along the extending direction of the screen bars 2.

[0025] After the metal raw materials enter the crushing chamber 11 through the feed inlet 12, the rotor 14 rotates at a high speed to drive the hammers to strike the raw materials. The crushed materials fly towards the screen bars 2 under the action of centrifugal force. The particles that meet the particle size requirements pass through the screen slots 21 and fall into the discharge outlet 13, and the larger particles slide along the inner arc surface of the screen bars 2 and continue to be impacted and crushed by the hammers. When there is material retained in the screen slots 21, the cleaning rod 3 slides along the arc track, and the cleaning protrusions 31 synchronously extend into each screen slot 21, and push out the blocked material along the length direction of the screen slot 21, so that it returns to the crushing chamber 11 to continue crushing.

[0026] The advantages are that the arc-shaped structure of the screen bars 2 enables its inner arc surface to fit the circumferential movement track of the materials. When the materials move tangentially to the screen bars 2, they can slide, reducing the material jamming caused by hitting the edges of the screen bars 2; the screen bars 2 are arranged at intervals along the axis direction of the rotor 14, and the extending direction of the formed screen slots 21 is consistent with the tangential movement direction of the materials (circumferential direction), avoiding the materials from being horizontally embedded in the screen slots 21. The arc track along which the cleaning rod 3 slides is concentric with the screen bars 2, and the cleaning protrusions 31 are matched with the screen slots 21. When sliding, they can synchronously move along the length direction of the screen slots 21 and extend into the screen slots 21 to remove the retained materials, realizing the synchronous progress of the crushing and cleaning processes, without the need to stop the machine to disassemble the screen plate 51, ensuring the continuous operation of the equipment.

[0027] As shown Figures 1 to 4 in the figure, arc-shaped slides 15 are provided on the corresponding positions of the side walls on both sides of the machine body 1 along the arc-shaped trajectory of the sieve bars 2, and the center of the arc-shaped slide 15 is concentric with the rotation center of the rotor 14. A rack 16 is fixedly arranged on the edge of the arc-shaped slide 15. Both ends of the cleaning rod 3 are installed in the arc-shaped slide 15 through sliding bearings and can slide along the arc-shaped trajectory of the arc-shaped slide 15. Tooth gears 32 are provided on the exposed parts at both ends of the rod body, and the tooth gears 32 are engaged with the rack 16. A plurality of groups of cleaning protrusions 31 are distributed at intervals along the axial direction of the cleaning rod 3. Each group includes three protrusions evenly distributed in the circumferential direction, and the positions of the protrusions correspond to the sieve slots 21.

[0028] When the cleaning rod 3 is driven to slide along the arc-shaped slide 15, the tooth gears 32 roll along the rack 16, forcing the cleaning rod 3 to rotate around its own axis. The three cleaning protrusions 31 evenly distributed in the circumferential direction sequentially enter the sieve slots 21 along with the rotation. The cleaning protrusions 31 enter from below the sieve slots 21 with the sliding and rotating movement of the cleaning rod 3, and knock the retained materials from bottom to top, and use the displacement brought by the rotation and the displacement brought by the sliding to push the materials out of the sieve slots 21.

[0029] The advantage is that the cleaning rod 3 realizes the linkage of sliding and rotation through the meshing mechanism of the rack 16 on one side of the arc-shaped slide 15 and the tooth gears 32 located at both ends of the cleaning rod 3, without the need for additional power to drive the rotation, and only relies on the meshing of the rack 16 and the tooth gears 32 during sliding to convert the movement. The three cleaning protrusions 31 evenly distributed in the circumferential direction sequentially enter and pass through the sieve slots 21, forming a periodic knock on the materials blocked in the sieve slots 21, and at the same time destroying the fitting state between the materials and the sieve slots 21 through knocking at different angles, effectively improving the cleaning effect.

[0030] The multiple groups of cleaning protrusions 31 distributed at intervals along the axial direction correspond to the axial arrangement of the sieve bars 2, so that the cleaning rod 3 synchronously cleans multiple rows of sieve slots 21 when sliding, improving the cleaning efficiency. The rigid meshing of the rack 16 and the tooth gears 32 ensures accurate movement transmission, avoids slipping or errors, ensures the movement of the cleaning protrusions 31 along the arc-shaped trajectory of the sieve bars 2, and realizes the omnidirectional coverage cleaning of the sieve slots 21. This structural design enables the cleaning process to be carried out synchronously with the crushing process, without the need for shutdown maintenance, reduces the equipment maintenance frequency, and improves the continuity and automation degree of the metal additive crushing production.

[0031] As shown Figures 1 to 4 in the figure, sliding frames 4 are provided on the outer wall of the machine body 1 corresponding to the positions of both ends of the cleaning rod 3. The sliding frames 4 are slidably installed on the outside of the machine body 1 in the horizontal direction, and vertical slides 41 are provided on their surfaces. Connecting parts 33 are provided at both ends of the cleaning rod 3. The connecting parts 33 are columnar structures, and their ends extend into the vertical slides 41 and abut against the inner walls of the vertical slides 41, and can slide up and down along the vertical slides 41. The arc-shaped slide 15 is provided on the side wall of the machine body 1, and its radian is concentric with the sieve bars 2. The cleaning rod 3 is restricted to move along the trajectory of the arc-shaped slide 15 through the cooperation of the connecting parts 33 and the vertical slides 41 of the sliding frames 4.

[0032] When the sliding frame 4 is driven (such as by a cylinder or a lead screw assembly) to slide horizontally, the connecting portion 33 moves synchronously within the vertical slideway 41. Due to the guiding effect of the vertical slideway 41, the horizontal displacement of the connecting portion 33 is converted into movement along the extending direction of the arc-shaped slideway 15, forcing the cleaning rod 3 to slide along the arc-shaped track of the arc-shaped slideway 15. During this process, the vertical sliding of the connecting portion 33 within the vertical slideway 41 compensates for the radial displacement of the arc-shaped track, ensuring smooth arc-shaped sliding.

[0033] The advantage is that the cooperation between the sliding frame 4 and the vertical slideway 41 decomposes the arc-shaped movement of the cleaning rod 3 into the horizontal movement of the sliding frame 4 and the vertical sliding of the connecting portion 33. The arc-shaped track movement of the cleaning rod 3 can be achieved through a simple linear drive mechanism (such as a cylinder or a motor driving the lead screw to rotate, causing the sliding frame to slide on the guiding rod), which simplifies the design of the drive system and reduces the manufacturing cost of the equipment. The abutting and cooperating of the connecting portion 33 and the vertical slideway 41 form a movement guide, preventing the cleaning rod 3 from radially shifting or jamming during sliding and ensuring its sliding along the arc-shaped track of the sieve bars 2. At the same time, the sliding frame 4 is arranged on the outer wall of the machine body 1, facilitating maintenance and the installation of the driving device.

[0034] As Figures 1 to 4 shown, the arc-shaped mounting frame 6 is slidably connected to the machine body 1, and its arc is consistent with the outer arc of the sieve bars 2, forming an installation space 61 inside. One end of several sieve bars 2 is fixedly connected to the connecting plate 5, and the sieve bars 2 and the connecting plate 5 together form a sieve plate 51. The sieve plate 51 is slidably inserted into the installation space 61 along the arrangement direction of the sieve bars 2 (the axial direction of the rotor 14). This enables the sieve plate 51 to be slidably disassembled along the arrangement direction of the sieve bars 2. The arc-shaped mounting frame 6 can be driven by a drive mechanism (such as manual force or any pulling device) to slide along the axial direction of the rotor 14, driving the sieve plate 51 to move out of or into the crushing chamber 11.

[0035] When it is necessary to maintain or replace the sieve plate 51, drive the arc-shaped mounting frame 6 to slide along the axial direction of the rotor 14, causing it to move outward from the machine body 1. The sieve plate 51 moves out of the crushing chamber 11 synchronously with the arc-shaped mounting frame 6; disassemble and replace the sieve plate 51. After replacement, slide the arc-shaped mounting frame 6 into the crushing chamber to complete the replacement of the sieve plate 51.

[0036] The advantage is that the connecting plate 5 fixedly connects one end of several sieve bars 2 to form an integral sieve plate 51. Through cooperation with the installation space 61 of the arc-shaped mounting frame 6, the detachable setting of the sieve plate 51 is realized. The arc-shaped mounting frame 6 slides along the axial direction of the rotor 14, and its movement track is consistent with the arrangement direction of the sieve bars 2, avoiding inclination or jamming.

[0037] This structural design enables the sieve plate 51 to be entirely removed from the crushing chamber 11 through the sliding of the arc-shaped mounting frame 6 without disassembling other components, simplifying the maintenance process. The detachable setting of the sieve plate 51 facilitates the inspection and replacement of the overall sieve plate 51. The sliding connection method of the arc-shaped mounting frame 6 ensures the stable installation of the sieve plate 51 in the crushing chamber 11 and provides a convenient maintenance method, reducing the downtime.

[0038] As Figures 5 to 10 shown, an arc-shaped sliding cavity 62 is opened on the inner wall of the mounting space 61 of the arc-shaped mounting frame 6 close to one side of the connecting plate 5. In the arc-shaped sliding cavity 62, the connecting plate 5 can slide along the direction in which the arc-shaped sliding cavity 62 is opened. When the connecting plate 5 is driven to slide into the arc-shaped sliding cavity 62, the other end of the sieve bar 2 moves away from the inner wall of the mounting space 61, forming a discharge port 63 between the sieve bar 2 and the inner wall of the mounting space 61. The discharge port 63 communicates the crushing chamber 11 with the outside of the mounting space 61.

[0039] The advantage is that the arc-shaped sliding cavity 62 and the sliding structure of the connecting plate 5 provide sliding guidance for the sieve plate 51. When the connecting plate 5 slides, it drives the other end of the sieve bar 2 to separate from the inner wall of the mounting space 61, forming a discharge port 63. The setting of the discharge port 63 enables the residual materials in the crushing chamber 11 to be discharged through the discharge port 63 when the equipment is damaged or the sieve plate 51 needs to be replaced, avoiding the need to clean the residual materials after the equipment is disassembled and reducing the maintenance workload. The specific cleaning process can be that workers use tools that can pass through the sieve gaps 21 between the sieve plates 51 to stir the materials in the crushing chamber 11 to the discharge port 63. Discharging the materials in the crushing chamber 11 helps with the disassembly and repair of the overall equipment.

[0040] As Figures 5 to 10 shown, a clamping portion 52 is provided on the side of the connecting plate 5 away from the sieve bar 2. The clamping portion 52 is a T-shaped structure protruding from the surface of the connecting plate 5. It can be arranged as a whole on the surface of the connecting plate 5 or divided into multiple segments. A clamping block 64 is slidably connected to the inner wall of the arc-shaped sliding cavity 62. A clamping groove 641 is opened on the side of the clamping block 64 close to the connecting plate 5. The shape of the clamping groove 641 is adapted to the clamping portion 52, forming a concave-convex matching structure. When installing the sieve plate 51 into the mounting space 61, the sieve plate 51 slides into the mounting space 61 along the arrangement direction of the sieve bars 2. The clamping portion 52 is aligned with the clamping groove 641 and inserted therein to achieve the mechanical connection between the clamping block 64 and the connecting plate 5. The clamping block 64 can slide along the radian direction of the arc-shaped sliding cavity 62. When the clamping block 64 is acted upon by an external force (such as a motor or a telescopic member as a driving device) and slides in the arc-shaped sliding cavity 62, the connecting plate 5 is driven to slide synchronously through the cooperation between the clamping portion 52 and the clamping groove 641, causing the other end of the sieve bar 2 to move away from or close to the inner wall of the mounting space 61, controlling the opening and closing of the discharge port 63.

[0041] The advantage is that the mating structure of the snap-in part 52 and the snap-in groove 641 realizes the rigid connection between the connecting plate 5 and the snap-in block 64, ensuring reliable transmission of power to the connecting plate 5 when the snap-in block 64 slides, and preventing the sieve plate 51 from loosening or displacing in the installation space 61. The T-shaped structure of the snap-in part 52 and the adaptation design of the snap-in groove 641 form a mechanical limit. After the sieve plate 51 slides into the installation space 61, it is automatically snap-connected without additional fixing components, simplifying the installation process.

[0042] As Figures 5 to 10 shown, a rotatable wire winding rod 7 is provided outside the arc-shaped mounting bracket 6. The wire winding rod 7 is rotatably mounted on the arc-shaped mounting bracket 6 through a bearing, and its axis is parallel to the length direction of the snap-in block 64 (i.e., along the axis direction of the rotor 14). A plurality of traction wires 71 are wound around the surface of the wire winding rod 7 at intervals along the axis direction. Both ends of the traction wire 71 are fixedly connected to the wire winding rod 7 and the snap-in block 64 respectively. The length of the traction wire 71 is adapted to the sliding stroke of the snap-in block 64 in the arc-shaped sliding cavity 62. An elastic member 8 is provided between the inner wall of the arc-shaped sliding cavity 62 and the snap-in block 64. The elastic member 8 is a compression spring, and its two ends respectively abut against the inner wall of the arc-shaped sliding cavity 62 and the snap-in block 64. In the natural state, the elastic member 8 is in a slightly compressed state, applying a thrust to the snap-in block 64 away from the inner side of the arc-shaped sliding cavity 62.

[0043] When it is necessary to drive the snap-in block 64 to slide towards the inner side of the arc-shaped sliding cavity 62, an external force drives the wire winding rod 7 to rotate around the axis. The traction wire 71 is wound as the wire winding rod 7 rotates, pulling the snap-in block 64 to move towards the inner side of the arc-shaped sliding cavity 62 against the thrust of the elastic member 8. At this time, the snap-in part 52 and the snap-in groove 641 remain in cooperation, driving the connecting plate 5 to slide synchronously. The end of the sieve bar 2 away from the connecting plate 5 moves away from the inner wall of the installation space 61, and the discharge port 63 opens; when the external force is withdrawn, the restoring force of the elastic member 8 pushes the snap-in block 64 to slide towards the outer side of the arc-shaped sliding cavity 62, the traction wire 71 becomes slack, and the wire winding rod 7 rotates in the reverse direction under the pulling force of the traction wire 71, and the free end of the sieve bar 2 resets, and the discharge port 63 closes.

[0044] The advantage is that the cooperation between the wire winding rod 7 and the traction wire 71 converts the rotation of the wire winding rod 7 into the linear sliding of the snap-in block 64, realizing long-distance transmission using the winding principle and avoiding the motion interference that may occur in rigid connections. The elastic member 8 provides the reset power, keeping the snap-in block 64 in the initial position when there is no external force, ensuring the stable state of the discharge port 63. The traction wires 71 are arranged at intervals along the axis of the wire winding rod 7, balancing the force on the snap-in block 64 and preventing the snap-in block 64 from tilting or jamming due to unilateral force.

[0045] As Figures 10 to 11As shown, one end of the take-up rod 7 passes through the side wall of the arc-shaped mounting frame 6 and extends to the outside to form an operating portion 72. The operating portion 72 can be a hexagonal column structure, and its axis coincides with the axis of the take-up rod 7, which is convenient for the operator to operate with an electric wrench. A connecting hole is provided on the operating portion 72, and a plurality of positioning holes 65 are evenly provided in the circumferential direction of the side wall of the arc-shaped mounting frame 6 with the axis of the take-up rod 7 as the center. A fastener 66 is provided on the operating portion 72. The fastener 66 is a pin-shaped structure and is slidably installed in the connecting hole. After sliding, one end of the fastener 66 can be inserted into the positioning hole 65, and the other end is exposed and provided with a limit cap.

[0046] When the position of the take-up rod 7 needs to be fixed, the fastener 66 is pushed toward the arc-shaped mounting frame 6 so that the other end thereof is inserted into the corresponding positioning hole 65 to limit the rotation of the operating portion 72; when the take-up rod 7 needs to be adjusted, the fastener 66 is pulled to disengage the positioning hole 65 so that the operating portion 72 can rotate freely. The circumferential spacing of the positioning holes 65 corresponds to the rotation angle of the take-up rod 7, ensuring that the different sliding positions of the clamping block 64 in the arc-shaped sliding cavity 62 are matched with the positioning holes 65.

[0047] The advantage is that the operation part 72 cooperates with the positioning hole 65 to lock the position of the take-up rod 7 through the fastener 66, preventing the traction line 71 from rotating in the opposite direction due to external force after winding, and ensuring the stability of the position of the clamping block 64 in the arc-shaped sliding cavity 62. The positioning holes 65 are evenly distributed around the circumference, providing multiple fixed gears to meet the requirements of different opening degrees of the discharge port 63. The sliding connection of the fastener 66 is combined with the reset spring to form a convenient locking and unlocking mechanism, which can be operated without additional tools, thereby improving the convenience of equipment maintenance.

[0048] like Figures 12 to 13 As shown, the side wall of the machine body 1 is provided with a lap portion 17, which is a horizontally extending L-shaped structure, and its shape is adapted to the top of the limiting plate 9. The top edge of the limiting plate 9 has a lap structure adapted to the lap portion 17, and one side edge is respectively abutted against the side wall of the machine body 1 and the side wall of the arc-shaped mounting frame 6 to form a pressing and limiting structure.

[0049] When the device is in operation, the limit plate 9 abuts against the side wall of the body 1 and the side wall of the arc-shaped mounting frame 6 at the same time to prevent the arc-shaped mounting frame 6 from sliding out of the body 1. When installing, the arc-shaped mounting frame 6 is first installed in place, and then the limit plate 9 is overlapped with the overlap portion 17, and then fixed to the side wall of the body 1 by bolts or buckles, and its side surface is in contact with the side wall of the arc-shaped mounting frame 6 to form a stable mechanical limit. The abnormal sliding of the arc-shaped mounting frame 6 is restricted, and the safety of the device operation is improved.

[0050] Meanwhile, an extension plate is also provided at the lower edge of the limit plate 9. An L-shaped guide plate is provided on the side of the extension plate close to the machine body. The function of the extension plate is to appropriately block the materials splashed out from the arc-shaped slideway 15, and the function of the L-shaped guide plate is to appropriately guide the top of the sliding frame 4, making the sliding frame 4 more stable during the sliding process.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A hammer crusher for metal additive production, characterized in that: include: A machine body (1), the machine body (1) having a crushing chamber (11) and a feed port (12) and a discharge port (13) connected to the crushing chamber (11), the machine body (1) being rotatably connected to a rotor (14) located in the crushing chamber (11); Screen bars (2), the screen bars (2) being a plurality of the screen bars (2), the plurality of the screen bars (2) being arranged in the crushing chamber (11) at intervals along the axis direction of the rotor (14), the screen bars (2) being arc-shaped and being located below the rotor (14), and screen gaps (21) being formed between two adjacent screen bars (2); A cleaning rod (3), the cleaning rod (3) being slidably arranged below the screen bars (2) along the extension direction of the screen bars (2), the cleaning rod (3) having a plurality of cleaning protrusions (31) penetrating upwardly through the screen slits (21), the plurality of cleaning protrusions (31) corresponding one to one with the plurality of screen slits (21), the cleaning rod (3) being arranged such that after sliding, the cleaning protrusions (31) slide along the extension direction of the screen slits (21) to clean the material blocked in the screen slits (21).

2. A hammer crusher for metal additive production according to claim 1, characterized in that: The cleaning rod (3) is slidably and rotatably arranged in the crushing chamber (11), and a plurality of cleaning protrusions (31) are arranged in a circumferential direction of the cleaning rod (3). When the cleaning rod (3) slides along the extension direction of the screen bar (2), the plurality of cleaning protrusions (31) slide in sequence through the screen slits (21) to push the material blocked in the screen slits (21) upward from bottom to enter the crushing chamber (11).

3. A hammer crusher for metal additive production according to claim 2, characterized in that: The side walls of the machine body (1) are provided with arc-shaped slideways (15) capable of guiding the end of the cleaning rod (3) to slide, and a rack (16) having the same arc as the arc-shaped slideway (15) is provided on the outside of the machine body (1); the two ends of the cleaning rod (3) respectively extend out of the machine body (1), and the outer end of the cleaning rod (3) has gear teeth (32), and the gear teeth (32) mesh with the rack teeth (16) so that the cleaning rod (3) can rotate when sliding.

4. A hammer crusher for producing metal additives according to claim 3, characterized in that: The outer side of the machine body (1) is also connected to a sliding frame (4) in a horizontal sliding direction. The sliding frame (4) is provided with a vertical slideway (41). The end of the cleaning rod (3) has a connecting portion (33) slidably connected to the vertical slideway (41). The connecting portion (33) can slide vertically along the vertical slideway (41) under the sliding drive of the sliding frame (4) so ​​that the cleaning rod (3) can slide along the arc-shaped slideway (15).

5. The hammer crusher for producing metal additives according to claim 1, characterized in that: The machine body (1) further comprises a connecting plate (5), the same end of a plurality of the screen bars (2) being connected to the connecting plate (5) to form a screen plate (51); an arc-shaped mounting frame (6) being slidably connected to the machine body (1) along the axis direction of the rotor (14); the arc-shaped mounting frame (6) having an installation space (61) extending vertically through the machine body; the screen plate (51) being detachably arranged in the installation space (61); and the arc-shaped mounting frame (6) being arranged to drive the screen plate (51) to move out of or into the crushing chamber (11) after sliding.

6. A hammer crusher for metal additive production according to claim 5, characterized in that: The arc-shaped mounting frame (6) is provided with an arc-shaped sliding cavity (62) connected to the mounting space (61), and the connecting plate (5) is slidably arranged in the arc-shaped sliding cavity (62). After the connecting plate (5) slides into the arc-shaped sliding cavity (62), a plurality of the screen bars (2) slide synchronously to form a discharge port (63) between the inner wall at the other end of the mounting space (61), and the discharge port (63) is used to discharge the material in the crushing cavity (11).

7. A hammer crusher for producing metal additives according to claim 6, characterized in that: A clamping portion (52) is provided on a side of the connecting plate (5) away from the screen bar (2); a clamping block (64) is slidably connected in the arc-shaped sliding cavity (62); a clamping groove (641) is provided on a side of the clamping block (64) close to the connecting plate (5); the clamping portion (52) and the clamping groove (641) are engaged with each other so that the clamping block (64) can drive the connecting plate (5) to slide when sliding in the arc-shaped sliding cavity (62).

8. A hammer crusher for producing metal additives according to claim 7, characterized in that: Also includes: A wire take-up rod (7), the wire take-up rod (7) being rotatably arranged on the arc-shaped mounting frame (6), the axis of the wire take-up rod (7) being parallel to the length direction of the clamping block (64), the wire take-up rod (7) being provided with a plurality of traction lines (71) arranged at intervals along the axis direction, the two ends of the traction lines (71) being respectively connected to the wire take-up rod (7) and the clamping block (64), the wire take-up rod (7) being arranged such that after the rotation, the traction lines (71) are wound around the outer periphery of the wire take-up rod (7) to pull the clamping block (64) to slide in the arc-shaped sliding cavity (62); An elastic member (8), wherein the elastic member (8) is arranged in the arc-shaped sliding cavity (62), and two ends of the elastic member (8) respectively act on the inner wall of the arc-shaped sliding cavity (62) and the clamping block (64), and are used to elastically push the clamping block (64) so ​​that the clamping block (64) slides toward the outside of the arc-shaped sliding cavity (62) and drives the screen plate (51) to move into the installation space (61).

9. A hammer crusher for producing metal additives according to claim 8, characterized in that: One end of the wire take-up rod (7) extends out of the arc-shaped mounting frame (6) and has an operating portion (72), wherein the operating portion (72) is connected to the arc-shaped mounting frame (6) via a fastener (66); A plurality of positioning holes (65) are provided on the side wall of the arc-shaped mounting frame (6) along the circumference of the operating portion (72); a connecting hole is provided on the operating portion (72); and the fastener (66) is provided through the connecting hole and one of the positioning holes (65) to limit the position of the operating portion (72) relative to the arc-shaped mounting frame (6).

10. A hammer crusher for producing metal additives according to claim 5, characterized in that: The side wall of the machine body (1) has an overlapping portion (17), and further comprises: A limit plate (9), wherein the top of the limit plate (9) overlaps the overlap portion (17), and one side of the limit plate (9) abuts against the side wall of the machine body (1) and the side wall of the arc-shaped mounting frame (6), so as to prevent the arc-shaped mounting frame (6) from sliding out of the machine body (1).

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