A quick detachable and flow blocking blade assembly
The design of the quick-release and flow-blocking blade assembly solves the problem of high load on the bottom blades of the grinding machine, enabling quick disassembly and installation of the blade assembly, adjustment of the number of blades, reduction of wear rate, and improvement of equipment efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN DINGJI PRECISION MASCH TECH CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-07-07
AI Technical Summary
Existing grinding machines have a problem with high bottom load in their blade assemblies, resulting in high wear rates.
Featuring a quick-release and flow-blocking blade assembly design, the combination of clamping elements and spacer rings allows for adjustment of the ratio of cutting blades to flow-blocking blades according to load requirements, and enables quick disassembly and installation using a pressure plate assembly.
It effectively adjusts the load distribution of the blade assembly, reduces wear on the bottom blades, and improves the service life and efficiency of the equipment.
Smart Images

Figure CN224462844U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of grinding machine technology, specifically relating to a quick-release and flow-blocking blade assembly. Background Technology
[0002] A grinding mill is a machine that uses a motor to drive a grinding hammer to rotate at high speed to grind and crush large pieces of material. It uses a motor to drive the grinding hammer to rotate at high speed to grind and crush large pieces of material to obtain powdered material. However, the existing grinding hammer adopts an integrated structure. Because the material accumulates at the bottom of the crusher, the processing load of the bottom blades is much higher than that of the upper blades, resulting in a higher wear rate of the bottom blades than the upper blades. Utility Model Content
[0003] The purpose of this invention is to provide a quick-release and flow-blocking blade assembly to solve the technical problem of high load on the bottom blades of the crushing assembly.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a quick-release and flow-blocking blade assembly, characterized in that: it includes a blade assembly installed inside a housing, the blade assembly being driven by a motor, and a manhole for maintenance is provided on the housing, the manhole being sealed by a sliding door, the sliding door being pressed and fixed by a pressure plate assembly.
[0005] Furthermore: the blade assembly includes a spindle for connecting the motor, a key is installed on the spindle shaft, an upper clamping member and a lower clamping member are sequentially installed on the spindle to limit and fix the upper and lower sides of the key, and a set of fixing holes are opened on the upper clamping member and the lower clamping member.
[0006] Furthermore: the blade assembly also includes a cutting blade and a spacer ring, the cutting blade being composed of a blade head extending outward from a semi-circular base, and a first locking hole being formed on the base;
[0007] Multiple cutting blades are installed between the upper and lower clamping parts via multiple spacer rings. A second locking hole is opened on the spacer ring. The fixing part is fixed sequentially through the fixing hole of the upper clamping part, the first locking hole of the base, and the second locking hole of the lower clamping part.
[0008] Furthermore, it also includes a flow-blocking blade with a third locking hole. Multiple cutting blades and flow-blocking blades are installed between the upper and lower clamping members through multiple spacer rings. The fixing member is fixed sequentially through the fixing hole of the upper clamping member, the first locking hole of the base, the third locking hole of the flow-blocking blade, and the second locking hole of the lower clamping member.
[0009] Furthermore: the pressure plate assembly includes an upper pressure plate assembly and a lower pressure plate assembly;
[0010] The upper pressure plate assembly includes a support plate fixedly installed on the housing, an adjusting bolt installed on the support plate, and a first adjusting nut, an upper pressure plate and a second adjusting nut arranged on the adjusting bolt. The position of the upper pressure plate is adjusted by the first adjusting nut and the second adjusting nut.
[0011] The lower pressure plate assembly includes a lower pressure plate with an elliptical hole. A third adjusting screw passes through the elliptical hole and is fixed to the outer wall of the housing. The lower pressure plate is fixed by a third adjusting nut.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By employing the cooperation of an upper clamping member, a lower clamping member, a blade assembly, and a flow-blocking assembly, after pulling out the fixing member 32, the lower clamping member 24 is fitted onto the bottom of the main shaft 21 and fixed. After selecting an appropriate number of cutting blades 26 and placing them on the upper surface of the lower clamping member 24, a spacer ring 30 is fitted along the main shaft 21 and its lower surface is fitted against the base 27 of the cutting blade. A flow-blocking blade 34 is fitted along the main shaft 21 and fitted against the spacer ring. The upper surface of 30 is attached, and the assembly of the blade assembly 2 is completed by repeating this process multiple times. Then, the fixing parts 32 are fixed in sequence through the fixing hole 25 of the upper clamping part 23, the first locking hole 29 of the base 27, the third locking hole 35 of the flow-blocking blade 34, and the second locking hole 31 of the lower clamping part 24, and then fixed by the locking part 33. This allows for rapid adjustment of the ratio of cutting blades 26 to flow-blocking blades 34 according to the operating load of the crusher, avoiding the technical problem of high load on the bottom blades when operating at low load. Attached Figure Description
[0013] Figure 1 This is a structural diagram of the present invention;
[0014] Figure 2 This utility model Figure 1 Enlarged view of section A;
[0015] Figure 3 This utility model Figure 1 Enlarged view of section B;
[0016] Figure 4 This is a structural diagram of the lower pressure plate of this utility model;
[0017] Figure 5 This is a first-state structural diagram of the blade assembly of this utility model;
[0018] Figure 6 This is a cross-sectional view of the blade assembly of this utility model;
[0019] Figure 7 This is a structural diagram of the cutting blade of this utility model;
[0020] Figure 8 This is a structural diagram of the flow-blocking blade of this utility model;
[0021] Figure 9 This is a structural diagram of the second state of the blade of this utility model. Detailed Implementation
[0022] 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.
[0023] Example 1:
[0024] In one embodiment of this utility model: as Figures 1-9 As shown, a quick-release and flow-blocking blade assembly is characterized by: including a blade assembly 2 installed in a housing 1, the blade assembly 2 being driven by a motor 3, and a manhole 4 for maintenance being provided on the housing 1, the manhole 4 being sealed by a sliding door 5, the sliding door 5 being pressed and fixed by a pressure plate assembly;
[0025] like Figures 1-4 As shown, the pressure plate assembly includes an upper pressure plate assembly 6 and a lower pressure plate assembly 7;
[0026] like Figure 2 As shown, the upper pressure plate assembly 6 includes a support plate 61 fixedly installed on the housing 1. An adjusting bolt 62 is installed on the support plate 61. A first adjusting nut 63, an upper pressure plate 64, and a second adjusting nut 65 are arranged on the adjusting bolt 62. The position of the upper pressure plate 64 is adjusted by the first adjusting nut 63 and the second adjusting nut 65.
[0027] like Figure 3 As shown, the lower pressure plate assembly 7 includes a lower pressure plate 71, an elliptical hole 72 is formed on the lower pressure plate 71, a third adjusting screw 73 passes through the elliptical hole 72 and is fixed to the outer wall of the housing 1, and the lower pressure plate 71 is fixed by a third adjusting nut 74.
[0028] In the above technical solution: First, the sliding door 5 is pressed tight. The second adjusting nut 65, which is close to the support plate 61, moves to the upper pressure plate 64, so that the plane of the second adjusting nut 65 is on the same plane as the contact surface between the upper pressure plate 64 and the sliding door 5. Then, the first adjusting nut 63 is fixed by turning the knob to avoid the threads from seizing.
[0029] An elliptical hole is made on the lower pressure plate 71. When fixing, the third adjusting screw 73 in the elliptical hole 72 is fixed at the uppermost position of the elliptical hole 72. When disassembling, the nut is loosened and the elliptical hole slides down by its own weight, causing the lower pressure plate 71 to detach from the sliding door 5, thereby speeding up the disassembly.
[0030] The blade assembly 2 includes a spindle 21 for connecting the motor 3. A key 22 is installed on the shaft of the spindle 21. An upper clamping member 23 and a lower clamping member 24 are sequentially installed on the spindle 21 to limit and fix the upper and lower sides of the key 22. A set of fixing holes 2 are opened on the upper clamping member 23 and the lower clamping member 24.
[0031] The blade assembly 2 also includes a cutting blade 26 and a spacer ring 30. The cutting blade 26 is composed of a blade head 28 extending outward from a semi-circular base 27. A first locking hole 29 is provided on the base 27.
[0032] like Figures 5-7 As shown, multiple cutting blades 26 are installed between the upper clamping member 23 and the lower clamping member 24 through multiple spacer rings 30. The spacer rings 30 have second locking holes 31. The fixing member 32 is fixed through the fixing hole 25 of the upper clamping member 23, the first locking hole 29 of the base 27 and the second locking hole 31 of the lower clamping member 24.
[0033] like Figure 8 and Figure 9 As shown, it also includes a flow-blocking blade 34, which has a third locking hole 35. Multiple cutting blades 26 and flow-blocking blades 34 are installed between the upper clamping member 23 and the lower clamping member 24 through multiple spacer rings 30. The fixing member 32 is fixed in sequence through the fixing hole 25 of the upper clamping member 23, the first locking hole 29 of the base 27, the third locking hole 35 of the flow-blocking blade 34 and the second locking hole 31 of the lower clamping member 24, and then through the locking member 33.
[0034] By adopting the above technical solution: there are multiple spacer rings 30 between the upper clamping member 23 and the lower clamping member 24, and multiple cutting blades or flow-blocking blades are circumferentially placed between one spacer ring and another spacer ring.
[0035] Adjust the number of blade assemblies and flow-restricting blades according to the material to be crushed and the operating load of the equipment;
[0036] After pulling out the fixing member 32, the lower clamping member 24 is fitted onto the bottom of the main shaft 21 and fixed. After selecting an appropriate number of cutting blades 26 and placing them on the upper surface of the lower clamping member 24, a spacer ring 30 is fitted along the main shaft 21 and the lower surface of the spacer ring 30 is made to fit against the base 27 of the cutting blade. This process is repeated multiple times to complete the assembly of the blade assembly 2. After that, the fixing member is fixed through the fixing hole 25 of the upper clamping member 23, the first locking hole 29 of the base 27 and the second locking hole 31 of the lower clamping member 24, and then through the locking member 33.
[0037] Another possible method is as follows: After pulling out the fixing member 32, the lower clamping member 24 is fitted onto the bottom of the main shaft 21 and then fixed. After selecting an appropriate number of cutting blades 26 and placing them on the upper surface of the lower clamping member 24, a spacer ring 30 is fitted along the main shaft 21 and the lower surface of the spacer ring 30 is attached to the base 27 of the cutting blade. A flow-blocking blade 34 is fitted along the main shaft 21 and attached to the upper surface of the spacer ring 30. This process is repeated multiple times to complete the assembly of the blade assembly 2. Then, the fixing member 32 is fixed by locking member 33 through the fixing hole 25 of the upper clamping member 23, the first locking hole 29 of the base 27, the third locking hole 35 of the flow-blocking blade 34, and the second locking hole 31 of the lower clamping member 24.
[0038] Another possible approach is to arbitrarily adjust the ratio of the number of cutting blades 26 to the flow-blocking blades 34 based on the above approach.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A quick-release and flow-blocking blade assembly, characterized in that: Includes a blade assembly (2) installed inside a housing (1), the blade assembly (2) being driven by a motor (3), and a manhole (4) for maintenance being provided on the housing (1), the manhole (4) being sealed by a sliding door (5), the sliding door (5) being pressed and fixed by a pressure plate assembly; The blade assembly (2) includes a spindle (21) for connecting a motor (3), a key (22) is slotted on the shaft of the spindle (21), an upper clamping member (23) and a lower clamping member (24) are sequentially installed on the spindle (21) to limit and fix the upper and lower sides of the key (22), and a set of fixing holes (25) are opened on the upper clamping member (23) and the lower clamping member (24). The blade assembly (2) also includes a cutting blade (26) and a spacer ring (30). The cutting blade (26) consists of a semi-circular base (27) extending outward to a cutting head (28). A first locking hole (29) is provided on the base (27). Multiple cutting blades (26) are installed between the upper clamping member (23) and the lower clamping member (24) through multiple spacer rings (30). A second locking hole (31) is opened on the spacer ring (30). The fixing member (32) is fixed in sequence through the fixing hole (25) of the upper clamping member (23), the first locking hole (29) of the base (27) and the second locking hole (31) of the lower clamping member (24) and then through the locking member (33).
2. The quick-release and flow-blocking blade assembly according to claim 1, characterized in that, It also includes a flow-blocking blade (34), on which a third locking hole (35) is opened. Multiple cutting blades (26) and flow-blocking blades (34) are installed between the upper clamping member (23) and the lower clamping member (24) through multiple spacer rings (30). The fixing member (32) is fixed in sequence from the fixing hole (25) of the upper clamping member (23), the first locking hole (29) of the base (27), the third locking hole (35) of the flow-blocking blade (34) and the second locking hole (31) of the lower clamping member (24) through the locking member (33).
3. The quick-release and flow-blocking blade assembly according to claim 1, characterized in that, The pressure plate assembly includes an upper pressure plate assembly (6) and a lower pressure plate assembly (7); The upper pressure plate assembly (6) includes a support plate (61) fixedly installed on the housing (1), an adjusting bolt (62) is installed on the support plate (61), and a first adjusting nut (63), an upper pressure plate (64) and a second adjusting nut (65) are arranged on the adjusting bolt (62). The position of the upper pressure plate (64) is adjusted by the first adjusting nut (63) and the second adjusting nut (65). The lower pressure plate assembly (7) includes a lower pressure plate (71), on which an elliptical hole (72) is opened. A third adjusting screw (73) passes through the elliptical hole (72) and is fixed to the outer wall of the housing (1). The lower pressure plate (71) is fixed by a third adjusting nut (74).