Hammer sheet positioning device of hammer sheet crusher

Abstract

The utility model discloses a hammer sheet positioning device of a hammer sheet crusher, which relates to the technical field of crushers and comprises a base frame, a crushing box and a crushing mechanism, the crushing box is fixedly mounted at the top of the base frame and is of a split structure, the crushing mechanism is arranged in the crushing box, and the crushing mechanism comprises a rotor shaft arranged in the crushing box. The plurality of fixed discs are fixedly mounted on the surface of the rotor shaft, the plurality of groups of crushing hammers are arranged between every two adjacent fixed discs and are annularly distributed, and corresponding pin holes are formed in the surfaces of the crushing hammers and the surfaces of the fixed discs. The crushing hammer is moved to drive the positioning rod to be slidably clamped into the positioning groove and enter the rotating groove, at the moment, the pin hole in the crushing hammer is aligned with the pin hole in the fixing disc, the effect of rapidly positioning the crushing hammer is achieved through cooperation of the positioning rod and the positioning groove, operation is easy and convenient, and the crushing efficiency is improved. And the mounting and positioning efficiency of the crushing hammer is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of crushers, and particularly relates to a hammer positioning device for a hammer mill. Background Technique

[0002] The hammer mill is one of the most widely used crushers, with a high power consumption per unit output and good versatility. Its structure consists of a feeding mechanism, a crushing chamber (rotor, hammer, screen, tooth plate), and a discharging part (fan, aggregate barrel, dust collection cloth bag).

[0003] The authorized patent with the application number: CN202322528757.5 is known, which discloses a hammer mill. The background technique thereof puts forward the problems that "when crushing, the material will be hit and collided by the hammer, and is easy to fly towards the feeding port and splash, posing a safety hazard; large particle materials are distributed on the outermost layer of the material flow, close to the screen, and small particles cannot pass through the large particles to contact the screen holes and be discharged". For this reason, the technical solution to solve this problem in this scheme is "including a main body, an auxiliary mechanism is fixedly arranged inside the feeding hopper fixed at the top of the main body, and a crushing rotor, a screen and a vibration mechanism are sequentially arranged from top to bottom inside the main body" and so on.

[0004] However, in the implementation of related technologies, it is found that the existing technical solutions have the following problems: when the existing hammer mill is in use, the hammers need to be regularly inspected and replaced. When replacing the hammers, in order to ensure the crushing effect of the crusher, the hammers must be correctly positioned and fixed on the rotor. However, when the existing crusher hammers are installed, most of them use a pin rod, a pin hole and a nut for cooperation. During the process, the position of the hammer needs to be adjusted to align the pin hole on it with the pin hole on the rotor, and then the pin rod is passed through the pin hole and fixed on the rotor with a nut. The operation is relatively cumbersome and time-consuming, and it is inconvenient to quickly position the hammer. Moreover, when disassembling and replacing the hammer in the later stage, it is also necessary to screw the nut one by one to disassemble the pin rod, which is inconvenient to quickly fix and disassemble the pin rod, and is likely to increase the time for replacing the hammer, thereby reducing the convenience and efficiency of hammer replacement. For this reason, we provide a hammer positioning device for a hammer mill to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a hammer positioning device for a hammer mill, which solves the problems of inconvenient quick positioning of the hammer and inconvenient quick fixing and disassembling of the pin rod in the existing ones.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is a hammer positioning device for a hammer mill, including: a base frame and a crushing box fixedly installed on its top and having a split structure;

[0008] A crushing mechanism is arranged in the crushing box, the crushing mechanism comprises a rotor shaft arranged in the crushing box, a plurality of fixed disks fixedly mounted on the surface of the rotor shaft, and a plurality of groups of crushing hammers arranged between two adjacent fixed disks and distributed in an annular shape, and the surfaces of the crushing hammers and the fixed disks are both provided with corresponding pin holes;

[0009] Positioning rods are fixedly mounted on both sides of the crushing hammer piece, and both end surfaces of the fixed plate are provided with a plurality of positioning grooves that slide with the positioning rods, and both end surfaces of the fixed plate are provided with rotation grooves that are connected with the positioning grooves and are located outside the pin hole;

[0010] A pin rod is inserted into the pin hole, one end of the pin rod is provided with an inner cavity, two trapezoidal blocks are symmetrically arranged in the inner cavity, and two clamping sleeves that are engaged with the trapezoidal blocks are symmetrically fixedly installed on one end surface of a fixed plate at the rear end of the rotor shaft and located outside the pin hole;

[0011] And a moving mechanism is arranged in the inner cavity of the pin rod, and the two trapezoidal clamping blocks are controlled by the moving mechanism to extend out or extend into the clamping sleeve.

[0012] The utility model is further configured such that the crushing box is composed of a bottom shell fixedly mounted on the top of a base frame and a top shell mounted on the top of the bottom shell by bolts, the rotor shaft is rotatably connected to the top of the bottom shell by a bearing seat, and circular grooves matching the rotor shaft are provided on the bottom shell and the top shell.

[0013] The utility model is further configured that the pulverizing mechanism also includes a screen detachably installed in the bottom shell, a plurality of pulverizing tooth plates fixedly installed on the inner surface of the top shell, and a power component for driving the rotor shaft is provided on the base frame.

[0014] The utility model is further configured as follows: the moving mechanism includes a fixed rod fixedly installed in the inner cavity of the pin rod, a spring sleeved on the surface of the fixed rod, a movable rod slidingly connected to the pin rod, and two connecting rods hingedly connected to one end of the movable rod, the two trapezoidal blocks are symmetrically slidably connected to the surface of the fixed rod, the two connecting rods are respectively hinged to the two trapezoidal blocks, the two ends of the spring are respectively connected to the two trapezoidal blocks, and the surface of the pin rod is provided with a slot for the trapezoidal blocks to extend out.

[0015] The utility model is further configured that the moving mechanism also includes two magnetic rods symmetrically fixedly installed at the other end of the pin rod, the fixed disk is made of iron, and one end surface of a fixed disk located at the front end of the rotor shaft is provided with a socket connected to the magnetic rod, and the fixed disk is made of iron and is magnetically adsorbed to the magnetic rod.

[0016] The utility model is further configured that a baffle is installed at the top port of the top shell through a spring hinge.

[0017] The utility model has the following beneficial effects:

[0018] 1. When installing the crushing hammer pieces, moving the crushing hammer pieces drives the positioning rod to slide and snap into the positioning groove and enter the rotating groove. At this time, the pin holes on the crushing hammer pieces are aligned with the pin holes on the fixed disk. Therefore, through the cooperation of the positioning rod and the positioning groove, the effect of quickly positioning the crushing hammer pieces is achieved. Conversely, when disassembling, moving the crushing hammer pieces drives the positioning rod out of the positioning groove, which is simple and convenient to operate. There is no need to frequently adjust the crushing hammer pieces to align the pin holes, improving the installation and positioning efficiency of the crushing hammer pieces.

[0019] 2. After the crushing hammer pieces are positioned, by inserting the pin rod into the pin hole, during the process, the trapezoidal clamping block is squeezed by the inner wall of the pin hole, causing the trapezoidal clamping block to slide relative to the fixed rod and move closer into the inner cavity of the pin rod, and squeezing the spring until the magnetic insertion rod is connected to the fixed disk and the pin rod passes through the last fixed disk. At this time, the trapezoidal clamping block is aligned with the socket, and the extrusion force on the trapezoidal clamping block disappears. Driven by the spring, the trapezoidal clamping block extends into the socket for clamping and fixing. Conversely, just pull the movable rod to drive the trapezoidal clamping block into the pin rod through the connecting rod, and the pin rod can be removed from the pin hole. Therefore, the effect of quickly fixing and disassembling the pin rod is achieved. There is no need to frequently turn the nut to disassemble and assemble the pin rod, reducing the time and difficulty of disassembling and assembling the pin rod, and effectively improving the replacement efficiency and convenience of the crushing hammer pieces.

[0020] Of course, it is not necessary for any product implementing the utility model to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0023] Figure 2 It is a three-dimensional sectional structural schematic diagram of the crushing box of the present utility model.

[0024] Figure 3 It is a partial three-dimensional structural schematic diagram of the rotor shaft of the present utility model.

[0025] Figure 4 It is a three-dimensional sectional structural schematic diagram of the pin rod of the present utility model.

[0026] Figure 5 It is the present utility model Figure 3 The enlarged three-dimensional structural schematic diagram of part A in.

[0027] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0028] 100, base frame; 200, crushing box; 201, bottom shell; 202, top shell; 203, baffle; 300, crushing mechanism; 301, rotor shaft; 302, fixed disk; 302a, positioning groove; 302b, rotating groove; 303, crushing hammer blade; 303a, positioning rod; 304, screen; 305, crushing tooth plate; 400, pin rod; 401, trapezoidal clamping block; 402, moving mechanism; 402a, fixed rod; 402b, spring; 402c, connecting rod; 402d, movable rod; 402e, magnetic plug rod. Specific embodiments

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment 1

[0031] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , which is the first embodiment of the present utility model. This embodiment provides a hammer blade positioning device for a hammer blade crusher, including: a base frame 100 fixedly installed on its top and a crushing box 200 with a split structure;

[0032] A crushing mechanism 300 arranged in the crushing box 200. The crushing mechanism 300 includes a rotor shaft 301 arranged in the crushing box 200, a plurality of fixed disks 302 fixedly installed on the surface of the rotor shaft 301, and a plurality of groups of crushing hammer blades 303 arranged in an annular distribution between two adjacent fixed disks 302. Corresponding pin holes are provided on the surfaces of the crushing hammer blades 303 and the fixed disks 302;

[0033] Positioning rods 303a fixedly installed on both side surfaces of the crushing hammer blades 303. A plurality of positioning grooves 302a that slide with the positioning rods 303a are provided on both end surfaces of the fixed disk 302. Rotating grooves 302b that communicate with the positioning grooves 302a are provided on both end surfaces of the fixed disk 302 and outside the pin holes;

[0034] A pin rod 400 is inserted into the pin hole. One end of the pin rod 400 is provided with an inner cavity, and two trapezoidal clamping blocks 401 are symmetrically arranged in the inner cavity. One end face of a fixed disk 302 at the rearmost end of the rotor shaft 301, and two clamping sleeves 302c that are symmetrically and fixedly installed outside the pin hole and are clamped with the trapezoidal clamping blocks 401;

[0035] And a moving mechanism 402 arranged in the inner cavity of the pin rod 400. The two trapezoidal clamping blocks 401 are controlled to extend or retract into the clamping sleeve 302c through the moving mechanism 402.

[0036] Specifically: The crushing box 200 is composed of a bottom shell 201 fixedly installed on the top of the base frame 100 and a top shell 202 installed on the top of the bottom shell 201 through bolts. The rotor shaft 301 is rotatably connected to the top of the bottom shell 201 through a bearing seat, and circular notch openings adapted to the rotor shaft 301 are provided on the bottom shell 201 and the top shell 202.

[0037] Specifically: The crushing mechanism 300 further includes a screen 304 detachably installed in the bottom shell 201 and a plurality of crushing tooth plates 305 fixedly installed on the inner surface of the top shell 202. A power component for driving the rotor shaft 301 is provided on the base frame 100. Among them, the structure of the power component is as shown in the appendix Figure 1 shown, which is the prior art well-known in the art and will not be elaborated here.

[0038] Specifically: The moving mechanism 402 includes a fixed rod 402a fixedly installed in the inner cavity of the pin rod 400, a spring 402b sleeved on the surface of the fixed rod 402a, a movable rod 402d slidably connected through the pin rod 400, and two connecting rods 402c butt-jointed and hinged to one end of the movable rod 402d. The two trapezoidal clamping blocks 401 are symmetrically slidably connected to the surface of the fixed rod 402a. The two connecting rods 402c are respectively hinged to the two trapezoidal clamping blocks 401. The two ends of the spring 402b are respectively connected to the two trapezoidal clamping blocks 401. A notch for the trapezoidal clamping block 401 to extend out is provided on the surface of the pin rod 400.

[0039] The moving mechanism 402 further includes two magnetic plug rods 402e symmetrically and fixedly installed at the other end of the pin rod 400. A jack for inserting the magnetic plug rod 402e is provided on one end face of a fixed disk 302 at the foremost end of the rotor shaft 301. The fixed disk 302 is made of iron and is magnetically adsorbed to the magnetic plug rod 402e.

[0040] The operation process of this embodiment is as follows: When in use, by opening the top shell 202 and moving the crushing hammer piece 303, the positioning rod 303a slides and snaps into the positioning groove 302a and enters the rotating groove 302b. At this time, the pin holes on the crushing hammer piece 303 are aligned with the pin holes on the fixed disk 302. Then, the pin rod 400 is inserted into the pin holes, passing through the positioned crushing hammer piece 303. And according to the above operation, a group of crushing hammer pieces 303 are successively positioned and installed on the fixed disk 302. At the same time, the pin rod 400 is moved to pass through a group of crushing hammer pieces 303 in turn. Therefore, through the cooperation of the positioning rod 303a and the positioning groove 302a, the effect of quickly positioning the crushing hammer piece 303 is achieved. On the contrary, when disassembling, moving the crushing hammer piece 303 drives the positioning rod 303a to move out of the positioning groove 302a. The operation is simple and convenient, without the need to frequently adjust the crushing hammer piece 303 to align the pin holes, effectively improving the speed and convenience of positioning the crushing hammer piece 303;

[0041] During the insertion of the pin rod 400, the trapezoidal clamping block 401 is extruded by the inner wall of the pin hole, and under the guidance of the inclined surface of the trapezoidal clamping block 401, the trapezoidal clamping block 401 slides relatively along the fixed rod 402a and moves closer into the inner cavity of the pin rod 400, and squeezes the spring 402b. When the extrusion force disappears, the trapezoidal clamping block 401 is reset and extends out by the spring 402b. This cycle continues until the pin rod 400 drives the magnetic insertion rod 402e to be inserted into the jack on the first fixed disk 302 and adsorbed, so as to limit the pin rod 400. At this time, the pin rod 400 passes through the last fixed disk 302, and the trapezoidal clamping block 401 is exactly aligned with the sleeve 302c, and the trapezoidal clamping block 401 is driven by the spring 402b to extend into the sleeve 302c for clamping and fixing. When disassembling the pin rod 400, only need to pull the movable rod 402d to move, and drive the two trapezoidal clamping blocks 401 to move into the pin rod 400 through the connecting rod 402c. After moving in, the pin rod 400 can drive it to move through the movable rod 402d under force, and separate the magnetic insertion rod 402e from the fixed disk 302 to make the pin rod 400 move out of the pin hole. Therefore, the effect of quickly fixing and disassembling the pin rod 400 is achieved, without the need to frequently turn the nut to install and disassemble the pin rod 400, reducing the time and difficulty of installation and disassembly, and being beneficial to improving the replacement efficiency and convenience of the crushing hammer piece 303;

[0042] After the crushing hammer piece 303 is installed, by fixing the top shell 202 on the bottom shell 201, then putting the material into the crushing box 200, and driving the rotor shaft 301 to rotate by the power component, thus driving the crushing hammer piece 303 to rotate around the central axis of the pin rod 400 under the action of centrifugal force. At the same time, driving the positioning rod 303a to rotate a certain amplitude in the rotating groove 302b. Furthermore, through the cooperation of the high-speed rotating crushing hammer piece 303 and the crushing tooth plate 305, the material is crushed. The crushed material is screened and discharged through the screen 304, and the unqualified ones will continue to be repeatedly struck in the crushing box 200 until their particle size is less than the aperture of the screen 304 and discharged.

[0043] Example Two

[0044] Refer to Figure 1 and Figure 2 , which is the second embodiment of the present utility model. This embodiment is based on the previous embodiment. The difference is that it can block the feeding end of the crushing box 200 after feeding to avoid the harm caused by material splashing to the staff, so as to better implement the present utility model.

[0045] Specifically: A baffle 203 is installed at the top port of the top shell 202 through a spring hinge.

[0046] The operation process of this embodiment is as follows: When feeding materials into the crushing box 200, under the action of the gravity of the materials, the baffle 203 can be driven to rotate and open, and at the same time, the spring hinge stores energy, so that the materials enter the crushing box 200. After the feeding is completed, the baffle 203 is driven by the spring hinge to rotate and reset to block the crushing box 200, which can prevent the materials from splashing out of the crushing box 200 and causing harm to the nearby personnel during the crushing of the materials, reduce potential safety hazards, and ensure the safety of the staff.

[0047] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0048] The above - disclosed preferred embodiments of the present utility model are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A hammer positioning device for a hammer mill, characterized in that: include: A base frame (100) and a crushing box (200) fixedly mounted on the top of the base frame and having a split structure; A pulverizing mechanism (300) is arranged in a pulverizing box (200), the pulverizing mechanism (300) comprising a rotor shaft (301) arranged in the pulverizing box (200), a plurality of fixed disks (302) fixedly mounted on the surface of the rotor shaft (301), and a plurality of groups of pulverizing hammers (303) arranged between two adjacent fixed disks (302) and distributed in an annular shape, wherein the surfaces of the pulverizing hammers (303) and the fixed disks (302) are both provided with corresponding pin holes; Positioning rods (303a) are fixedly mounted on both sides of the crushing hammer piece (303); both end surfaces of the fixed plate (302) are provided with a plurality of positioning grooves (302a) that slide with the positioning rods (303a); and both end surfaces of the fixed plate (302) are provided with rotation grooves (302b) that are connected with the positioning grooves (302a) and are located outside the pin holes; A pin rod (400) is inserted into the pin hole, one end of the pin rod (400) is provided with an inner cavity, two trapezoidal clamping blocks (401) are symmetrically arranged in the inner cavity, and two clamping sleeves (302c) that are clamped to the trapezoidal clamping blocks (401) are symmetrically fixedly installed on one end surface of a fixed disk (302) at the rear end of the rotor shaft (301) and located outside the pin hole; And a moving mechanism (402) is arranged in the inner cavity of the pin rod (400), and the two trapezoidal clamping blocks (401) are controlled by the moving mechanism (402) to extend out or extend into the clamping sleeve (302c).

2. A hammer positioning device for a hammer mill according to claim 1, characterized in that: The crushing box (200) is composed of a bottom shell (201) fixedly mounted on the top of a base frame (100) and a top shell (202) mounted on the top of the bottom shell (201) by bolts; the rotor shaft (301) is rotatably connected to the top of the bottom shell (201) via a bearing seat; and circular notches matching the rotor shaft (301) are provided on the bottom shell (201) and the top shell (202).

3. A hammer positioning device for a hammer mill according to claim 2, characterized in that: The pulverizing mechanism (300) further comprises a screen (304) detachably mounted in the bottom shell (201) and a plurality of pulverizing tooth plates (305) fixedly mounted on the inner surface of the top shell (202). A power component for driving the rotor shaft (301) is provided on the base frame (100).

4. A hammer positioning device for a hammer mill according to claim 1, characterized in that: The moving mechanism (402) comprises a fixed rod (402a) fixedly installed in the inner cavity of the pin rod (400), a spring (402b) sleeved on the surface of the fixed rod (402a), a movable rod (402d) penetrating and slidably connected in the pin rod (400), and two connecting rods (402c) butt-jointed with one end of the movable rod (402d); the two trapezoidal blocks (401) are symmetrically slidably connected to the surface of the fixed rod (402a); the two connecting rods (402c) are respectively hinged to the two trapezoidal blocks (401); the two ends of the spring (402b) are respectively connected to the two trapezoidal blocks (401); and the surface of the pin rod (400) is provided with a slot for the trapezoidal blocks (401) to extend out.

5. A hammer positioning device for a hammer mill according to claim 4, characterized in that: The moving mechanism (402) further comprises two magnetic plug rods (402e) symmetrically fixedly mounted on the other end of the pin rod (400); a plug hole for plugging into the magnetic plug rod (402e) is formed on one end surface of a fixed disk (302) located at the front end of the rotor shaft (301); the fixed disk (302) is made of iron and is magnetically attracted to the magnetic plug rod (402e).

6. A hammer positioning device for a hammer mill according to claim 2, characterized in that: A baffle (203) is installed at the top port of the top shell (202) via a spring hinge.

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