Rotor body for detachable hammer arm
By designing a detachable hammer arm rotor body spacing adjustment and hammer arm disassembly and assembly unit, the problems of non-adjustable hammer spacing and inconvenient hammer head disassembly and assembly in the existing technology are solved, thereby improving crushing efficiency and hammer head service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHU DIANLIWEAR-RESISTANT ALLOY FOUNDRY CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-19
AI Technical Summary
In existing detachable hammer arm rotor bodies, the spacing between multiple breaker hammers cannot be adjusted during the crushing process, affecting crushing efficiency. Furthermore, the hammer heads are difficult to disassemble and reassemble after wear, increasing costs and reducing service life.
A detachable hammer arm rotor body was designed, comprising a rotor body main shaft, a spacing adjustment unit, and a hammer arm disassembly and assembly unit. The spacing of the breaker hammer and the hammer head can be adjusted and conveniently disassembled and assembled by components such as a sliding cylinder, an adjusting ring, a fixing ring, and fastening bolts. The hammer arm is fixed by fastening nuts and snap-fit rectangular plates, which improves the assembly stability.
It enables flexible adjustment of the distance between the breaker hammers without affecting the crushing efficiency. The hammers are easy to disassemble and reassemble after wear, reducing replacement costs and extending the service life of the hammers.
Smart Images

Figure CN224252956U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotor design technology for hammer crushers, specifically a rotor body for detachable hammer arms. Background Technology
[0002] A hammer crusher is a device that crushes materials through impact. It comes in single-rotor and double-rotor versions. It's a primary crusher that directly crushes materials with a maximum particle size of 600-1800 mm to 25 mm or less. Hammer crushers are suitable for crushing medium-hardness materials such as limestone, slag, and coal in industries such as cement, chemical, power, and metallurgy. To extend the lifespan of the hammer crusher and facilitate the disassembly and replacement of the hammers, a rotor body with detachable hammer arms is required for production and processing.
[0003] The existing detachable hammer arm rotor body has multiple breaker hammers with adjustable spacing, which affects crushing efficiency. After long-term use, the hammers will wear out, making it inconvenient to disassemble and replace them, increasing costs and reducing the service life of the hammers. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a rotor body for a detachable hammer arm. The spacing between multiple breaker hammers can be adjusted without affecting the crushing efficiency. After long-term use, the hammer heads will wear down, and it is convenient to disassemble and replace the hammer heads, thereby reducing costs and increasing the service life of the hammer heads. This can effectively solve the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a detachable hammer arm rotor body, comprising a rotor body main shaft, a spacing adjustment unit, and a hammer arm disassembly and assembly unit;
[0006] Rotor body main shaft: It has four annular array of limiting slide grooves, and the four limiting slide grooves are equipped with spacing adjustment units. The spacing adjustment unit is equipped with a hammer arm disassembly and assembly unit on the isolation circular plate. One end of the rotor body main shaft is fixedly connected to an external connecting column, and the external connecting column is connected to an external power mechanism.
[0007] The spacing adjustment unit comprises a sliding cylinder, an adjusting ring, a connecting strip, and a fixed ring. A sliding cylinder is fixedly connected to each of the four limiting grooves on the rotor body's main shaft. Multiple equally spaced adjusting rings are slidably sleeved on the rotor body's main shaft. Each adjusting ring has four annular arrays of protrusions on its inner side, each protrusion slidingly connected to its corresponding limiting groove. A sliding hole on each adjusting ring slides to its corresponding sliding cylinder. Each adjusting ring has four annular arrays of snap-fit grooves on its outer surface, each snap-fit groove fixedly holding a connecting strip. Each adjusting ring has a fixed ring on its outer surface, with its inner side fixedly connected to a corresponding connecting strip. Each fixed ring is snapped into its corresponding adjusting ring via a connecting strip.
[0008] The rotor body main shaft is used to fix the assembly device. The spacing adjustment unit is used to adjust the spacing for auxiliary adjustment. The external connecting column is used to connect to the power mechanism. The sliding cylinder is used to make the movement of the adjusting ring more stable. The adjusting ring is used to fix the fixed ring and drive the fixed ring to move to adjust the spacing, which is convenient for assembly. The connecting strip is used to fix the fixed ring on the adjusting ring for assembly. The fixed ring is used to fix the isolation plate for disassembly and assembly, which is convenient for assembly.
[0009] Furthermore, the spacing adjustment unit also includes fastening bolts, with four fastening bolts arranged in an annular array on each fixed ring. Each fastening bolt passes through the adjustment ring and contacts the rotor body main shaft, and each fixed ring is connected to the rotor body main shaft by fastening bolts.
[0010] The fastening bolts are used to fix the ring after adjusting it to a suitable spacing, so as to facilitate crushing and fixing.
[0011] Furthermore, the spacing adjustment unit also includes a circular plate fixing seat and an isolation circular plate. Two equally spaced circular plate fixing seats are fixedly sleeved on the outer surface of the fixing ring, and an isolation circular plate is fixedly sleeved on each circular plate fixing seat. Each fixing ring is connected to the corresponding isolation circular plate through the circular plate fixing seat.
[0012] The circular plate holder is used to fix the isolation circular plate, which in turn fixes the movable cylinder, thus enabling assembly and use, facilitating quick assembly and disassembly.
[0013] Furthermore, the hammer arm assembly / disassembly unit includes a movable cylinder, a fastening nut, a movable connecting block, and a snap-fit rectangular plate. Each isolation circular plate has four annularly arranged circular holes. Each fixed circular ring has four annularly arranged movable cylinders positioned between two corresponding isolation circular plates. Each movable cylinder passes through the circular holes on its corresponding isolation circular plate. Each movable cylinder is connected to its corresponding isolation circular plate by a fastening nut. Each movable cylinder is movably fitted with a movable connecting block positioned between two corresponding isolation circular plates. Each movable connecting block has a snap-fit rectangular groove, and each snap-fit rectangular groove is fixedly snapped into its corresponding snap-fit rectangular plate. Each snap-fit rectangular plate is connected to the movable connecting block by bolts.
[0014] The fastening nut is used to fix the movable cylinder on the isolation circular plate for fixed assembly. The movable cylinder is used to fix the movable connecting block so that the movable connecting block can move, thereby driving the hammer head to move, and thus assembling for use. The snap-fit rectangular plate is used to fix the supporting hammer arm on the movable connecting block, and thus assemble for use. Thus, the rotor body is assembled for use.
[0015] Furthermore, the hammer arm assembly / disassembly unit also includes a supporting hammer arm, with one supporting hammer arm fixedly connected to each snap-fit rectangular plate, and each supporting hammer arm having an assembly / disassembly hole.
[0016] The support arm is used to fix the hammer head, thereby providing support and fixation for assembly and use.
[0017] Furthermore, the hammer arm assembly / disassembly unit also includes a hammer head fixing block, a snap-fit pin, and a crushing hammer head. Each supporting hammer arm has an assembly / disassembly hole that is fixedly snapped into the hammer head fixing block by a snap-fit pin. Each hammer head fixing block is fixedly connected to the crushing hammer head. Each supporting hammer arm is connected to the hammer head fixing block by a snap-fit pin.
[0018] The hammerhead fixing block is used to fix the crushing hammerhead, which is used to crush raw materials for production. The snap-fit pin is used to fix the hammerhead fixing block to the supporting hammer arm for hammerhead assembly and disassembly, thereby increasing the service life of the hammerhead and improving the performance of the device.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] 1. This detachable hammer arm rotor has the following advantages: It is equipped with a spacing adjustment unit. The sliding cylinder is used to make the movement of the adjustment ring more stable. The adjustment ring is used to fix the fixed ring, thereby driving the fixed ring to move and adjust the spacing, which is convenient for assembly and use. The connecting strip is used to fix the fixed ring on the adjustment ring for assembly and use. The fixed ring is used to fix the isolation circular plate for disassembly and assembly. The fastening bolt is used to fix the fixed ring after adjusting to a suitable spacing, which is convenient for crushing. The circular plate fixing seat is used to fix the isolation circular plate. The isolation circular plate is used to fix the movable cylinder, thereby facilitating assembly and use, adjusting the spacing, and facilitating assembly and use.
[0021] 2. This detachable hammer arm rotor has the following advantages: It is equipped with a hammer arm disassembly and assembly unit. A fastening nut is used to fix the movable cylinder to the isolation circular plate for fixed assembly. The movable cylinder is used to fix the movable connecting block, allowing the movable connecting block to move and drive the hammer head to move, thus facilitating assembly. A snap-fit rectangular plate is used to fix the supporting hammer arm to the movable connecting block, and the supporting hammer arm is used to fix the hammer head, thus providing support and fixation. A hammer head fixing block is used to fix the crushing hammer head, which is used to crush raw materials for production. A snap-fit insert is used to fix the hammer head fixing block to the supporting hammer arm, allowing for the disassembly and assembly of the hammer head, facilitating replacement and use.
[0022] 3. The rotor body for this detachable hammer arm has the following advantages: the spacing between multiple breaker hammers can be adjusted without affecting the crushing efficiency; after long-term use, the hammers will wear out, making it easier to disassemble and replace the hammers, reducing costs and increasing the service life of the hammers. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the front structure of this utility model;
[0024] Figure 2 This is a partial cross-sectional view of the front of the present invention.
[0025] Figure 3 This is a partial structural diagram of the hammer arm assembly / disassembly unit of this utility model.
[0026] In the diagram: 1 Rotor main shaft, 2 External connecting column, 3 Spacing adjustment unit, 31 Sliding cylinder, 32 Adjusting ring, 33 Connecting strip, 34 Fixed ring, 35 Fastening bolt, 36 Circular plate fixing seat, 37 Isolation circular plate, 4 Hammer arm disassembly and assembly unit, 41 Movable cylinder, 42 Fastening nut, 43 Movable connecting block, 44 Snap-fit rectangular plate, 45 Supporting hammer arm, 46 Hammer head fixing block, 47 Snap-fit insert, 48 Crushing hammer head. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figure 1-3 This embodiment provides a technical solution: a detachable hammer arm rotor body, including a rotor body main shaft 1, a spacing adjustment unit 3, and a hammer arm disassembly and assembly unit 4;
[0029] Rotor body main shaft 1: Four annular array of limiting grooves are provided on the upper part. A spacing adjustment unit 3 is provided in the four limiting grooves. A hammer arm disassembly and assembly unit 4 is provided on the isolation circular plate 37 in the spacing adjustment unit 3. One end of the rotor body main shaft 1 is fixedly connected to an external connecting column 2. The external connecting column 2 is connected to an external power mechanism.
[0030] The spacing adjustment unit 3 includes a sliding cylinder 31, an adjusting ring 32, a connecting strip 33, and a fixed ring 34. A sliding cylinder 31 is fixedly connected to each of the four limiting grooves on the rotor body main shaft 1. Multiple equally spaced adjusting rings 32 are slidably sleeved on the rotor body main shaft 1. Each adjusting ring 32 has four annular array protrusions on its inner side, each protrusion slidingly connected to its corresponding limiting groove. The sliding holes on each adjusting ring 32 slidingly connect to the corresponding sliding cylinder 31. Each adjusting ring 32 has four annular array snap-fit grooves on its outer surface, each snap-fit groove fixedly snapping into a connecting strip 33. Each adjusting ring 32 has a fixed ring 34 on its outer surface, with the inner side of each fixed ring 34 fixedly connected to its corresponding connecting strip 33. Each fixed ring 34 is snapped into its corresponding adjusting ring 32 via the connecting strip 33.
[0031] The rotor body main shaft 1 is used to fix the assembly device, the spacing adjustment unit 3 is used to adjust the spacing for auxiliary adjustment, the external connecting column 2 is used to connect to the power mechanism, the sliding cylinder 31 is used to make the movement of the adjusting ring 32 more stable, the adjusting ring 32 is used to fix the fixed ring 34 to drive the fixed ring 34 to move for adjusting the spacing, which is convenient for assembly and use, the connecting strip 33 is used to fix the fixed ring 34 on the adjusting ring 32 for assembly and use, the fixed ring 34 is used to fix the isolation circular plate 37 for disassembly and assembly, which is convenient for assembly and use.
[0032] The spacing adjustment unit 3 also includes fastening bolts 35. Each fixed ring 34 is provided with four fastening bolts 35 arranged in an annular array. Each fastening bolt 35 passes through the adjustment ring 32 and contacts the rotor body main shaft 1. Each fixed ring 34 is connected to the rotor body main shaft 1 by fastening bolts 35.
[0033] The fastening bolt 35 is used to fix the fixing ring 34 after adjusting to a suitable distance, so as to facilitate crushing and thus adjust and fix it.
[0034] The spacing adjustment unit 3 also includes a circular plate fixing seat 36 and an isolation circular plate 37. Two equally spaced circular plate fixing seats 36 are fixedly sleeved on the outer surface of the fixing ring 34. An isolation circular plate 37 is fixedly sleeved on each circular plate fixing seat 36. Each fixing ring 34 is connected to the corresponding isolation circular plate 37 through the circular plate fixing seat 36.
[0035] The circular plate fixing seat 36 is used to fix the isolation circular plate 37, which is used to fix the movable cylinder 41, so as to facilitate assembly and use, and make it easy to quickly assemble and disassemble.
[0036] The hammer arm assembly / disassembly unit 4 includes a movable cylinder 41, a fastening nut 42, a movable connecting block 43, and a snap-fit rectangular plate 44. Each isolation circular plate 37 has four circular holes arranged in an annular array. Each fixed ring 34 has four movable cylinders arranged in an annular array between two corresponding isolation circular plates 37. Each movable cylinder 41 passes through the circular holes on the corresponding isolation circular plate 37. Each movable cylinder 41 is connected to the corresponding isolation circular plate 37 by a fastening nut 42. Each movable cylinder 41 is movably fitted with a movable connecting block 43 between two corresponding isolation circular plates 37. Each movable connecting block 43 has a snap-fit rectangular groove. Each snap-fit rectangular groove is fixedly snapped into the corresponding snap-fit rectangular plate 44. Each snap-fit rectangular plate 44 is connected to the movable connecting block 43 by bolts.
[0037] The fastening nut 42 is used to fix the movable cylinder 41 on the isolation circular plate 37 for fixed assembly. The movable cylinder 41 is used to fix the movable connecting block 43 so that the movable connecting block 43 can move and drive the hammer head to move, thus for assembly. The snap-fit rectangular plate 44 is used to fix the supporting hammer arm 45 on the movable connecting block 43 for assembly. Thus, the rotor body is assembled for use.
[0038] The hammer arm assembly / disassembly unit 4 also includes a supporting hammer arm 45, with a supporting hammer arm 45 fixedly connected to each snap-fit rectangular plate 44, and each supporting hammer arm 45 having an assembly / disassembly hole.
[0039] The support arm 45 is used to fix the hammer head, thereby providing support and fixation for assembly.
[0040] The hammer arm assembly / disassembly unit 4 also includes a hammer head fixing block 46, a snap-fit pin 47, and a crushing hammer head 48. Each supporting hammer arm 45 has a disassembly / assembly hole that is fixedly snapped into the hammer head fixing block 46 by the snap-fit pin 47. Each hammer head fixing block 46 is fixedly connected to the crushing hammer head 48. Each supporting hammer arm 45 is connected to the hammer head fixing block 46 by the snap-fit pin 47.
[0041] Hammer head fixing block 46 is used to fix the crushing hammer head 48, which is used to crush raw materials for production. The snap-fit pin 47 is used to fix the hammer head fixing block 46 on the supporting hammer arm 45 for assembling and disassembling the hammer head, thereby increasing the service life of the hammer head and improving the performance of the device.
[0042] The working principle of the detachable hammer arm rotor provided by this utility model is as follows: First, the sliding cylinder 31 is used to make the movement of the adjusting ring 32 more stable. The adjusting ring 32 is used to fix the fixed ring 34, thereby driving the fixed ring 34 to move and adjust the spacing for easy assembly and use. The connecting strip 33 is used to fix the fixed ring 34 on the adjusting ring 32 for assembly and use. The fixed ring 34 is used to fix the isolation circular plate 37 for disassembly and assembly. The fastening bolt 35 is used to fix the fixed ring 34 after adjusting to a suitable spacing for easy crushing. The circular plate fixing seat 36 is used to fix the isolation circular plate 37. The isolation circular plate 37 is used to control the movable cylinder 4. 1. Fix the movable cylinder 41 to the isolation circular plate 37 by tightening the nut 42. The movable cylinder 41 is used to fix the movable connecting block 43, so that the movable connecting block 43 can move and drive the hammer head to move. The rectangular plate 44 is used to fix the supporting hammer arm 45 to the movable connecting block 43. The supporting hammer arm 45 is used to fix the hammer head. The hammer head fixing block 46 is used to fix the crushing hammer head 48. The crushing hammer head 48 is used to crush raw materials for production. The plug 47 is used to fix the hammer head fixing block 46 to the supporting hammer arm 45. The hammer head can be disassembled and assembled.
[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A detachable rotor body for a hammer arm, characterized in that: It includes a rotor body main shaft (1), a spacing adjustment unit (3), and a hammer arm disassembly and assembly unit (4); Rotor body main shaft (1): Four ring array of limiting grooves are provided on the upper part, and a spacing adjustment unit (3) is provided in the four limiting grooves. A hammer arm disassembly and assembly unit (4) is provided on the isolation circular plate (37) in the spacing adjustment unit (3). One end of the rotor body main shaft (1) is fixedly connected to an external connecting column (2), and the external connecting column (2) is connected to an external power mechanism. The spacing adjustment unit (3) comprises a sliding cylinder (31), an adjusting ring (32), a connecting strip (33), and a fixed ring (34). A sliding cylinder (31) is fixedly connected to each of the four limiting grooves on the rotor body main shaft (1). Multiple equally spaced adjusting rings (32) are slidably sleeved on the rotor body main shaft (1). Each adjusting ring (32) has four annular array protrusions on its inner side. Each protrusion is slidably connected to its corresponding limiting groove. Each adjusting ring (32)... The sliding holes on the upper part are slidably connected to the corresponding sliding cylinder (31). Each adjusting ring (32) has four ring array of snap-fit grooves on its outer surface. Each snap-fit groove is fixedly snapped into a connecting strip (33). Each adjusting ring (32) has a fixed ring (34) on its outer surface. The inner side of each fixed ring (34) is fixedly connected to the corresponding connecting strip (33). Each fixed ring (34) is snapped into the corresponding adjusting ring (32) through the connecting strip (33).
2. The rotor body for a detachable hammer arm according to claim 1, characterized in that: The spacing adjustment unit (3) also includes fastening bolts (35). Each fixed ring (34) is provided with four fastening bolts (35) arranged in an annular array. Each fastening bolt (35) passes through the adjustment ring (32) and contacts the rotor body main shaft (1). Each fixed ring (34) is connected to the rotor body main shaft (1) by fastening bolts (35).
3. The rotor body for a detachable hammer arm according to claim 2, characterized in that: The spacing adjustment unit (3) also includes a circular plate fixing seat (36) and an isolation circular plate (37). Two equally spaced circular plate fixing seats (36) are fixedly sleeved on the outer surface of the fixing ring (34). An isolation circular plate (37) is fixedly sleeved on each circular plate fixing seat (36). Each fixing ring (34) is connected to the corresponding isolation circular plate (37) through the circular plate fixing seat (36).
4. The rotor body for a detachable hammer arm according to claim 3, characterized in that: The hammer arm assembly / disassembly unit (4) includes a movable cylinder (41), a fastening nut (42), a movable connecting block (43), and a snap-fit rectangular plate (44). Each isolation circular plate (37) has four circular holes arranged in an annular array. Each fixed ring (34) has four movable cylinders arranged in an annular array between two corresponding isolation circular plates (37). Each movable cylinder (41) passes through the circular holes on the corresponding isolation circular plate (37). Each movable cylinder (41) is connected to the corresponding isolation circular plate (37) by a fastening nut (42). Each movable cylinder (41) is movably fitted with a movable connecting block (43) between two corresponding isolation circular plates (37). Each movable connecting block (43) has a snap-fit rectangular groove. Each snap-fit rectangular groove is fixedly snapped into the corresponding snap-fit rectangular plate (44). Each snap-fit rectangular plate (44) is connected to the movable connecting block (43) by bolts.
5. A detachable hammer arm rotor body according to claim 4, characterized in that: The hammer arm disassembly and assembly unit (4) also includes a supporting hammer arm (45), with a supporting hammer arm (45) fixedly connected to each snap-fit rectangular plate (44), and each supporting hammer arm (45) having a disassembly and assembly hole.
6. A detachable hammer arm rotor body according to claim 5, characterized in that: The hammer arm disassembly and assembly unit (4) also includes a hammer head fixing block (46), a snap-fit pin (47), and a crushing hammer (48). Each supporting hammer arm (45) is fixedly snapped into the disassembly and assembly hole by the snap-fit pin (47) and the hammer head fixing block (46). Each hammer head fixing block (46) is fixedly connected to the crushing hammer (48). Each supporting hammer arm (45) is connected to the hammer head fixing block (46) by the snap-fit pin (47).