Metal briquetting pre-crusher

Abstract

A metal pressing block pre-crusher relates to the technical field of test equipment and comprises a motor, a rack, a hobbing bottom plate, a tooth roller and a hobbing bottom plate elastic supporting mechanism, according to the utility model, the elastic supporting mechanism is arranged below the hobbing bottom plate, so that the working noise is low; non-rigid force is used in the working process, the force is flexible in the application process and can be changed along with the size and material parameters of a target object, and therefore for quick-wear parts such as a hammer head and tooth edges, the discharging granularity cannot be changed regardless of the abrasion degree of the quick-wear parts. And moreover, if objects with higher hardness are mixed into the materials, the equipment cannot be damaged, and on the contrary, the materials can be naturally discharged, so that the rigid damage to the equipment is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing equipment, in particular to a metal briquetting pre-crusher. Background Art

[0002] One of the most important uses of scrap steel is electric furnace steelmaking. The scrap steel recycled from the market will be pressed into metal briquettes and transported to the steel mill. Due to the different types of scrap steel materials, the scrap steel composition in the metal briquettes pressed from scrap steel varies greatly, and the volume, length, etc. are different, and the stacking density varies greatly. Directly using it as raw material for electric furnace steelmaking will cause many negative effects during the production process, such as difficulty in feeding and difficulty in uniformly controlling the melting time in the furnace. Therefore, the metal briquettes need to be crushed before feeding steelmaking. The normal crusher currently used will be difficult to crush or even damage the crusher when encountering a large metal block in the metal briquettes. Therefore, it is necessary to design a metal briquette pre-crusher. When encountering a large metal block in the production process, it will be crushed into smaller metal fragments, and then handed over to a normal metal crusher for crushing, and finally the metal briquettes will be crushed into metal fragments of qualified particle size. Utility Model Content

[0003] The utility model aims to provide a metal briquette pre-crusher, which can crush large pieces of metal in the metal briquette into metal pieces with smaller particle sizes.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A metal briquette pre-crusher comprises a motor, a frame, a gear-rolling base plate, a gear roller and an elastic support mechanism for the gear-rolling base plate; the motor is mounted on the motor base; a feed port is provided above the frame, and a discharge port is provided below the frame; a gear-rolling base plate rotating shaft is provided at the upper end of the gear-rolling base plate, the gear-rolling base plate rotating shaft is rotatably mounted on the frame through a support, and the lower part of the gear-rolling base plate is mounted on the elastic support mechanism for the gear-rolling base plate; a gear roller is provided with a gear roller shaft, and the gear roller is rotatably mounted on the frame through the gear roller shaft; the motor drives the gear roller shaft to rotate through a reducer and a transmission belt.

[0006] The above-mentioned metal briquette pre-crusher, the gear-rolling base plate elastic support mechanism includes a gear-rolling base plate base, a gear-rolling base plate support seat, a support spring, and a support rod; the gear-rolling base plate base is installed on the frame, the gear-rolling base plate support seat is installed on the gear-rolling base plate base, the upper end of the support rod is hinged to the gear-rolling base plate, and the lower end can slide through the hole on the gear-rolling base plate support seat, the support spring is located between the gear-rolling base plate and the gear-rolling base plate support seat, and is mounted on the support rod; a thread is provided at the lower end of the support rod, and the fastener is tightened to adjust the tightness of the support spring.

[0007] In the above-mentioned metal briquette pre-crusher, a disc-shaped body is provided on the toothed roller, and a plurality of adjacent disc-shaped bodies are arranged at equal distances between each other. A hammer head is fixedly installed on a hammer head fixed shaft between adjacent disc-shaped bodies, and the hammer head fixed shaft is fixedly installed on the disc-shaped body; a tooth edge is provided on the gear rolling bottom plate; and the position formed between two adjacent tooth edges corresponds to the position of the hammer head.

[0008] In the above-mentioned metal briquette pre-crusher, the hammer head and the tooth edges are both made of wear-resistant materials.

[0009] The utility model has the following advantages:

[0010] The utility model is provided with an elastic support mechanism under the gear hobbing bottom plate, and the working noise is low; non-rigid force is used in the working process, and the force is flexible in the application process, and it will change with the size of the target object and the material parameters, so for the hammer head, tooth edge and other wearing parts, no matter how much the wear is, the discharge particle size will not change. And if a relatively hard object is mixed in the material, it will not cause damage to the equipment, on the contrary, it will be discharged naturally, avoiding rigid damage to the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0012] Figure 2 It is a three-dimensional schematic diagram of the utility model from a top view angle;

[0013] Figure 3 It is a three-dimensional structural schematic diagram of the gear roller and the gear hobbing base plate;

[0014] The numbers in the figure represent: 1, feed port, 2, gear hobbing base plate base, 3, gear hobbing base plate rotating shaft, 4, motor, 5, motor base, 6, gear roller shaft, 7, gear hobbing base plate supporting seat, 8, supporting spring, 9, frame, 10, gear hobbing base plate, 11, discharge port, 12, support rod, 13, gear roller, 13-1, hammer head, 13-2, hammer head fixed shaft, 13-3, disc-shaped body, 10-1, tooth edge. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] The utility model is a metal briquetting pre-crusher, which is provided with a frame 9, a feed port 1 is provided above the frame 9, and a discharge port 11 is provided below the frame 9; a motor 4 is provided on the side of the frame 9, the motor 4 is installed on a motor base 5, and the motor 4 drives a gear roller shaft 6 to rotate through a reducer and a transmission belt; the gear roller shaft 6 is installed on the frame 9, and the gear roller shaft 6 drives a gear roller 13 to rotate; a gear hobbing base plate 10 is arranged at the side and lower part of the gear roller 13, and a gear hobbing base plate rotating shaft 3 is provided on the upper end of the gear hobbing base plate 10, and the gear hobbing base plate rotating shaft 3 is installed on the frame 9, and the gear hobbing base plate 10 can rotate around the gear hobbing base plate rotating shaft 3.

[0017] The utility model is a metal briquetting pre-crusher, which is provided with a gear-rolling base plate elastic support mechanism, including a gear-rolling base plate base 2, a gear-rolling base plate support seat 7, a support spring 8, and a support rod 12; the gear-rolling base plate base 2 is provided on a frame 9, the gear-rolling base plate support seat 7 is installed on the gear-rolling base plate base 2, the support spring 8 is sleeved on the support rod 12, the upper end of the support rod 12 is hinged on the bottom surface of the gear-rolling base plate 10, and the lower end can movably pass through the round hole on the gear-rolling base plate support seat 7, and a fastener is installed at the lower end of the support rod 12 for adjusting the tightness of the support spring 8.

[0018] The utility model discloses a metal briquetting pre-crusher. A hammer head 13-1 is installed on a toothed roller 13. A toothed edge 10-1 is arranged on a gear hobbing bottom plate 10. When the toothed roller 13 rotates, the hammer head 13-1 cooperates with the toothed edge 10-1 to crush the material.

[0019] The utility model is a metal briquette pre-crusher. When working, the toothed roller 13 rotates, and the metal briquette enters from the feed port 1. It is squeezed between the toothed roller 13 and the gear-rolling bottom plate 10, and is torn by the impact of the toothed roller and the toothed edge 10-1 on the gear-rolling bottom plate. If a hard or hard-to-crush object enters, the huge pressure generated will compress the support spring 8 under the gear-rolling bottom plate, and the gear-rolling bottom plate 10 will be away from the toothed roller 13, so that the hard-to-crush object can be smoothly discharged, thereby protecting the toothed roller and the gear-rolling bottom plate from damage.

Claims

1. A metal briquette pre-crusher, characterized in that: The invention comprises a motor (4), a frame (9), a gear hobbing base plate (10), a gear roller (13) and a gear hobbing base plate elastic support mechanism; the motor (4) is mounted on a motor base (5); a feed port (1) is provided above the frame (9), and a discharge port (11) is provided below the frame (9); a gear hobbing base plate rotating shaft (3) is provided at the upper end of the gear hobbing base plate (10), the gear hobbing base plate rotating shaft (3) is rotatably mounted on the frame (9) via a support, and the lower part of the gear hobbing base plate (10) is mounted on the gear hobbing base plate elastic support mechanism; a gear roller shaft (6) is provided on the gear roller (13), and the gear roller (13) is rotatably mounted on the frame (9) via the gear roller shaft (6); the motor (4) drives the gear roller shaft (6) to rotate via a reducer and a transmission belt.

2. A metal briquette pre-crusher according to claim 1, characterized in that: The gear hobbing base plate elastic support mechanism comprises a gear hobbing base plate base (2), a gear hobbing base plate support seat (7), a support spring (8), and a support rod (12); the gear hobbing base plate base (2) is mounted on a frame (9), the gear hobbing base plate support seat (7) is mounted on the gear hobbing base plate base (2), the upper end of the support rod (12) is hinged to the gear hobbing base plate (10), and the lower end can slide through a hole on the gear hobbing base plate support seat (7); the support spring (8) is located between the gear hobbing base plate (10) and the gear hobbing base plate support seat (7), and is sleeved on the support rod (12); a thread is provided at the lower end of the support rod (12), and a fastener is tightened to adjust the tightness of the support spring (8).

3. The metal briquette pre-crusher according to claim 1, characterized in that: The toothed roller (13) is provided with a disc-shaped body (13-3), a plurality of adjacent disc-shaped bodies (13-3) are arranged at equal intervals, a hammer head (13-1) is fixedly mounted on a hammer head fixed shaft (13-2) between adjacent disc-shaped bodies (13-3), and the hammer head fixed shaft (13-2) is fixedly mounted on the disc-shaped body (13-3); a tooth edge (10-1) is provided on the gear hobbing base plate (10); and a position formed between two adjacent tooth edges (10-1) corresponds to a position of the hammer head (13-1).

4. A metal briquette pre-crusher according to claim 3, characterized in that: The hammer head (13-1) and the tooth edge (10-1) are both made of wear-resistant material.

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