Impact crusher

Abstract

The utility model discloses an impact crusher. The impact crusher comprises a T-shaped plate hammer and a plate hammer fixing device, the T-shaped plate hammer comprises a plate hammer head, a plate hammer rod and a plate hammer seat; the width of the cross section of the plate hammer head is greater than that of the plate hammer rod; the plate hammer seat is trapezoidal and has a narrow upper part and a wide lower part; the plate hammer fixing device comprises a trapezoidal groove which is formed in the rotor and is used for placing a plate hammer seat; a screw hole is formed in the bottom face of the trapezoidal groove and connected with a fastening bolt, and the fastening bolt makes contact with the bottom of the plate hammer base so as to fix the plate hammer. The device is high in use efficiency, and the use cost can be reduced.

Description

Technical Field

[0001] This utility model relates to a building material processing equipment, and more particularly to an impact crusher. Background Technology

[0002] Impact crushers are high-efficiency crushing equipment that have been widely used in stone processing in metallurgy, chemical industry, building materials, hydropower and other fields.

[0003] Existing impact crushers generally include a hammer and an impact plate. Some also include an impact plate adjusting rod for adjusting the gap between the impact plate and the hammer. The hammer has a rectangular cross-section, and its middle part is fixed to the rotor by a clamping device.

[0004] The existing impact crusher has the following drawbacks: the narrow width of the hammer head makes it prone to wear during crushing, and the efficiency is only about 40%, which affects the efficiency and increases the operating cost; in addition, the impact plate adjustment rod cannot be finely adjusted, the adjustment range is limited, and the adjustment rod needs to be replaced frequently, which affects the efficiency and increases the operating cost. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an impact crusher to overcome the defects of the prior art.

[0006] To solve the above-mentioned technical problems, the present invention provides an impact crusher, comprising a T-shaped hammer and a hammer fixing device; the T-shaped hammer includes a hammer head, a hammer rod, and a hammer seat; the width of the cross-section of the hammer head is greater than that of the hammer rod; the hammer seat is trapezoidal, narrower at the top and wider at the bottom; the hammer fixing device includes a trapezoidal groove on the rotor for placing the hammer seat; the bottom surface of the trapezoidal groove is provided with a screw hole, the screw hole is connected to a fastening bolt, and the fastening bolt contacts the bottom of the hammer seat to fix the hammer.

[0007] The width of the cross-section of the hammer head is 80-120 mm greater than that of the hammer rod.

[0008] The width of the cross-section of the hammer head is 100 mm greater than that of the hammer rod.

[0009] The thickness of the cross-section of the hammerhead is 60-100 mm.

[0010] The thickness of the cross-section of the hammerhead is 80 mm.

[0011] The height of the hammer rod is 70-90 mm.

[0012] The height of the hammer rod is 80 mm.

[0013] It also includes a counter-attack plate fine-tuning device, which includes a threaded sleeve. The threaded sleeve has an external thread and is threadedly connected to the machine body connecting plate. The threaded sleeve has an external thread and is threadedly connected to the machine body connecting plate and locked by a locking nut. The other end of the threaded sleeve is provided with an adjusting nut. The counter-attack plate adjusting screw passes through the threaded sleeve, extends out of the machine body, and is connected to the other end of the threaded sleeve by the adjusting nut.

[0014] It also includes a discharge adjustment rod, which is set at the discharge port and extends out of the machine body at both ends.

[0015] The discharge adjustment rods are provided in the form of 2-6 rods.

[0016] By adopting the structure of this utility model, since the width of the hammer head cross-section is greater than that of the hammer rod, the hammer head can be made larger, thus making it more wear-resistant during crushing operations and achieving an efficiency of over 70%. This high efficiency reduces operating costs, overcoming the shortcomings of existing technologies. The hammer seat of this utility model is trapezoidal, narrower at the top and wider at the bottom, and is fixed to the trapezoidal groove on the rotor by bolts, facilitating installation and disassembly, and ensuring more stable hammer fixation during operation.

[0017] This invention employs a counter-attack plate fine-tuning device, which allows for bidirectional adjustment via the counter-attack plate adjusting screw and threaded sleeve, resulting in a wider adjustment range, higher efficiency, and reduced operating costs.

[0018] This utility model also has a discharge adjustment rod at the discharge port, which is used to adjust the discharge speed and control the fineness of the discharge by adjusting the discharge speed. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the T-shaped hammer structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the counter-attack plate fine-tuning device of this utility model. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0023] like Figure 1 , Figure 2 As shown, the impact crusher of this utility model includes a T-shaped hammer 1 and a hammer fixing device.

[0024] The T-shaped hammer consists of a hammer head 3, a hammer rod 4, and a hammer base 5. The width of the hammer head's cross-section is greater than that of the hammer rod. The hammer base is trapezoidal, narrower at the top and wider at the bottom.

[0025] The hammer fixing device includes a trapezoidal groove on the rotor 2 for placing the hammer seat. The bottom surface of the trapezoidal groove is provided with a screw hole, and a fastening bolt 6 is connected to the screw hole. The fastening bolt contacts the bottom of the hammer seat to fix the hammer.

[0026] The width of the hammer head's cross-section is preferably 80-120 mm greater than that of the hammer rod. More preferably, the width of the hammer head's cross-section is 100 mm greater than that of the hammer rod.

[0027] The thickness of the cross-section of the hammer head is preferably 60-100 mm. More preferably, the thickness of the cross-section of the hammer head is 80 mm.

[0028] The height of the hammer rod is preferably 70-90 mm. More preferably, the height of the hammer rod is 80 mm.

[0029] To provide a wider adjustment range, a counter-attack plate fine-tuning device is also included.

[0030] like Figure 3 As shown, the counter-attack plate fine-tuning device includes a threaded sleeve 10. The threaded sleeve has external threads and is threadedly connected to the machine body connecting plate 8 and locked by a locking nut 9. One end of the threaded sleeve extending into the machine body is in contact with a spring on the counter-attack plate adjusting screw 7, and the other end of the threaded sleeve is provided with an adjusting nut 11. The counter-attack plate adjusting screw passes through the threaded sleeve, extends out of the machine body, and is connected to the other end of the threaded sleeve through an adjusting nut 12.

[0031] To facilitate adjustment of the crushed particle size, a discharge adjustment rod is also included. The discharge adjustment rod is located at the discharge port and extends out of the machine body at both ends.

[0032] The discharge adjustment rods are preferably provided in the form of 2-6 rods.

Claims

1. An impact crusher, characterized in that: It includes a T-shaped hammer (1) and a hammer fixing device; the T-shaped hammer includes a hammer head (3), a hammer rod (4) and a hammer seat (5); the width of the cross-section of the hammer head is greater than that of the hammer rod; the hammer seat is trapezoidal, narrow at the top and wide at the bottom; the hammer fixing device includes a trapezoidal groove on the rotor (2) for placing the hammer seat; the bottom surface of the trapezoidal groove is provided with a screw hole, and the screw hole is connected to a fastening bolt (6), which contacts the bottom of the hammer seat to fix the hammer.

2. The impact crusher according to claim 1, characterized in that: The width of the cross-section of the hammer head is 80-120 mm greater than that of the hammer rod.

3. The impact crusher according to claim 1, characterized in that: The width of the cross-section of the hammer head is 100 mm greater than that of the hammer rod.

4. The impact crusher according to claim 1, characterized in that: The thickness of the cross-section of the hammerhead is 60-100 mm.

5. The impact crusher according to claim 1, characterized in that: The thickness of the cross-section of the hammerhead is 80 mm.

6. The impact crusher according to claim 1, characterized in that: The height of the hammer rod is 70-90 mm.

7. The impact crusher according to claim 1, characterized in that: The height of the hammer rod is 80 mm.

8. The impact crusher according to claim 1, characterized in that: It also includes a counter-attack plate fine-tuning device, which includes a threaded sleeve (10). The threaded sleeve has an external thread and is threadedly connected to the machine body connecting plate (8) and locked by a locking nut (9). One end of the threaded sleeve extends into the machine body and is in contact with the spring on the counter-attack plate adjusting screw (7). The other end of the threaded sleeve is provided with an adjusting nut (11). The counter-attack plate adjusting screw passes through the threaded sleeve, extends out of the machine body, and is connected to the other end of the threaded sleeve through the adjusting nut (12).

9. The impact crusher according to claim 1, characterized in that: It also includes a discharge adjustment rod, which is set at the discharge port and extends out of the machine body at both ends.

10. The impact crusher according to claim 9, characterized in that: The discharge adjustment rods are provided in the form of 2-6 rods.

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