CN109261293B - Limiting device for conveniently replacing hammer sheet for hammer sheet type crusher - Google Patents
Limiting device for conveniently replacing hammer sheet for hammer sheet type crusher Download PDFInfo
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- CN109261293B CN109261293B CN201811305171.XA CN201811305171A CN109261293B CN 109261293 B CN109261293 B CN 109261293B CN 201811305171 A CN201811305171 A CN 201811305171A CN 109261293 B CN109261293 B CN 109261293B
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- sheet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/28—Shape or construction of beater elements
Abstract
A limiting device for conveniently replacing a hammer for a hammer crusher comprises a hammer frame, a hammer shaft, a hammer and a limiting body. The limiting body is provided with a plurality of limiting rod pieces, each limiting rod piece is composed of a plurality of limiting rod piece units, and each limiting rod piece unit is provided with a plurality of non-tail-end limiting shafts, tail-end limiting shafts and a plurality of pairs of limiting discs. The outer surface of each non-tail-end limiting shaft and the outer surface of the tail-end limiting shaft are respectively provided with a plurality of pairs of limiting discs, one end of each non-tail-end limiting shaft is provided with a shaft head, the other end of each non-tail-end limiting shaft is provided with a shaft hole, and two ends of each tail-end limiting shaft are provided with shaft heads. The invention provides a combined connecting structure of limiting rod piece units, wherein the inner side extending end of each hammer piece is positioned in a separation cavity between a pair of corresponding limiting disks. The hammer piece position can be limited without a hammer piece spacer sleeve, and the limiting device is not required to be detached when the hammer piece is replaced, so that the hammer piece is more convenient to replace, the time for replacing the hammer piece is shortened, and the workload is reduced.
Description
Technical Field
The invention relates to a hammer mill, in particular to a limiting device for the hammer mill, which is convenient for replacing a hammer.
Background
The inventor finds that the hammer installation mode of the existing hammer mill is still the traditional type through visiting the market. The hammer shaft is fixed on the hammer frame through the hammer shaft holes on the hammer frames, the hammer sheets are positioned on the hammer shaft, and the hammer sheets are separated from the hammer frame by hammer sheet spacer sleeves (namely circular pipes, the inner diameter of which is larger than the hammer shafts).
The conventional method for replacing the hammer mainly has the following defects that ① requires hammer spacer sleeves with different lengths due to the arrangement mode of the hammers, more stock is prepared, ② is easy to wear and needs to be replaced periodically due to the fact that the hammer spacer sleeves are not too far away from a material layer, ③ enables a hammer shaft to be slowly drawn away when the hammer is replaced or the gap of a hammer screen is adjusted, the hammer and the hammer spacer sleeves are taken down one by one and pressed upwards when being installed, and the length of the hammer spacer sleeves needs to be noticed.
The inventors searched the following related patent documents: CN206199407U discloses a crusher rotor with a limiting device on a hammer guide rod, which comprises a main shaft, wherein outer spokes are sleeved at two ends of the main shaft; the main shaft at the inner side of the outer spoke is sleeved with an inner spoke; the outer spoke is provided with an outer spoke mounting hole along the circumferential direction; the inner spoke is provided with an inner spoke mounting hole along the circumferential direction; hammer slice guide rods are arranged in the inner spoke mounting holes and the outer spoke mounting holes; the right end part of the hammer slice guide rod is radially provided with a right rectangular limiting groove; a limiting plate is arranged in the limiting groove; the limiting plate is connected with the mounting hole on the outer wheel through a bolt. CN206199408U discloses a hammer guide rod reusable crusher rotor, wherein outer spokes are sleeved at two ends of a main shaft; the main shaft at the inner side of the outer spoke is sleeved with an inner spoke; hammer slice guide rods are arranged in the inner spoke mounting holes and the outer spoke mounting holes; the right end part of the hammer slice guide rod is radially provided with a right through hole; the upper part of the limiting shaft is arranged in the through hole; the lower end of the limiting shaft is connected with the connecting plate; the connecting plate is connected with the mounting hole on the outer wheel through a bolt. CN201353512Y discloses a rubbing crusher shaft type hammer leaf stop gear. The novel mechanical arm comprises a main shaft, spokes sleeved on the main shaft, spacer sleeves sleeved on the main shaft and arranged between the spokes, hammer pieces hinged to extension ends of the spokes through penetrating rods, a cross shaft penetrating through spokes and hammer piece stop rods, wherein grooves are formed in the cross shaft, the positions of the grooves correspond to the positions of the hammer pieces, one ends of the hammer pieces hinged to the spokes are arc-shaped, and the arc ends are embedded into the grooves. CN201353513Y discloses a rubbing crusher barrel hammer leaf stop gear. The novel mechanical arm comprises a main shaft, spokes sleeved on the main shaft, spacer sleeves sleeved on the main shaft and arranged between the spokes, hammer pieces hinged to extension ends of the spokes through penetrating rods, and annular cylinders penetrating through the spokes, wherein grooves are formed in the cylinders, the positions of the grooves correspond to the positions of the hammer pieces, and one ends of the hammer pieces hinged to the spokes are embedded into the grooves.
The position of the hammer sheet can be limited by the limiting device which is convenient to replace the hammer sheet without the hammer sheet spacer sleeve by the aid of the above technologies, the limiting device does not need to be replaced due to abrasion, the limiting device does not need to be detached when the hammer sheet is replaced, time and labor are saved, and a specific guiding scheme is not given.
Disclosure of Invention
The invention aims to solve the technical problem of providing a limiting device for a hammer mill, which is convenient to replace a hammer, and the limiting device can limit the position of the hammer without a hammer spacer bush, cannot be replaced due to abrasion, does not need to be disassembled when the hammer is replaced, is more convenient to replace the hammer, thereby reducing the time for a user to replace the hammer and lightening the workload.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a limiting device for conveniently replacing hammer sheets for a hammer sheet type crusher is provided with a plurality of hammer sheet frames, a plurality of hammer sheet shafts, a plurality of hammer sheets and a limiting body for limiting the hammer sheets, wherein each hammer sheet frame is provided with a plurality of groups of hammer sheet shaft holes (a plurality of groups of hammer sheet shaft hole groups, a plurality of groups of hammer sheet shaft mounting holes, one mounting station corresponds to one group of hammer sheet shaft holes) which enable the hammer sheet shafts to be respectively positioned at a plurality of mounting stations, each group of hammer sheet shaft holes on each hammer sheet frame is provided with a plurality of hammer sheet shaft holes which are used for the hammer sheet shafts to pass and correspond to the hammer sheet shafts one by one, the number of the hammer sheet shaft holes in each group of hammer sheet shaft holes is the same as that of the hammer sheet shafts, the transverse central lines (axes and the rotary central lines) of the hammer sheet shaft holes in each group of hammer sheet shaft holes on each hammer sheet frame are in a same projection concentric circle in a plane vertical to the transverse central lines (namely the central points of the hammer sheet shaft holes in each group of hammer sheet shaft holes on each hammer sheet frame are on, the technical scheme is that the limiting body is provided with a plurality of combined limiting rod pieces which correspond to the hammer leaf shafts one by one, the number of the limiting rod pieces is the same as that of the hammer leaf shafts, each limiting rod piece is composed of a plurality of limiting rod piece units (when two or more limiting rod piece units are arranged, the limiting rod pieces are discontinuous and disconnected), (each combined limiting rod piece unit is provided with a plurality of non-tail end limiting shafts, tail end limiting shafts and a plurality of pairs of limiting discs which are arranged in pairs, and the outer surface (the side surface can be an outer circumferential surface) of each non-tail end limiting shaft, The outer surface (the side surface, which can be an outer circumferential surface) of the tail end limiting shaft is provided with a plurality of pairs (two pairs) of limiting discs, the number of pairs of limiting discs on each non-tail end limiting shaft and the number of pairs of limiting discs on the tail end limiting shaft are the same as the number of corresponding hammer sheets between two adjacent hammer sheet frames, one end of each non-tail end limiting shaft is provided with a shaft head, the other end of each non-tail end limiting shaft is provided with a shaft hole, and the two ends of each tail end limiting shaft are provided with shaft heads; each hammer piece frame is provided with a plurality of positioning holes which correspond to the limiting rod pieces one by one, the number of the positioning holes on each hammer piece frame is the same as that of the limiting rod pieces, the projection of the transverse center lines (axes and rotation center lines) of the positioning holes on each hammer piece frame in a plane perpendicular to the transverse center lines is a common circle (namely the center points of the positioning holes on each hammer piece frame are on the same circumference), and the positioning holes on each hammer piece frame are uniformly distributed along the circumferential direction;
the combined connecting structure of each limit rod piece unit adopts one of the following two structures ① and ② (namely, the structure ① or the structure ②):
① a plurality of non-tail end limiting shafts and tail end limiting shafts are arranged in turn from left to right, the head end of the first non-tail end limiting shaft of the plurality of non-tail end limiting shafts is inserted into the positioning hole of the leftmost hammer holder, i.e. the first hammer holder, the shoulder of the head end of the first non-tail end limiting shaft is limited by the right side wall of the first hammer holder, the other end of the first non-tail end limiting shaft is limited by the left side wall of the second hammer holder, the head end of the next non-tail end limiting shaft, i.e. the second non-tail end limiting shaft, is limited by (passes through) the positioning hole of the second hammer holder and is inserted into the shaft hole of the last non-tail end limiting shaft, i.e. the first non-tail end limiting shaft, the shoulder of the head end of the second non-tail end limiting shaft is limited by the right side wall of the second hammer holder, the other end of the second non-tail end limiting shaft is limited by the left side wall of the third hammer holder, each non-tail end limiting shaft is arranged in turn according to the above connection structure until the tail end shaft is connected, the tail end shaft end is inserted into the left side wall of the first non-tail end limiting shaft holder and the left side wall of the last hammer holder, the two reciprocal hammer holder are inserted into the left side wall of the two reciprocal hammer holder, the two reciprocal,
② A tail end limiting shaft and a plurality of non-tail end limiting shafts are sequentially arranged from left to right, one head end of the tail end limiting shaft is inserted into a positioning hole of the leftmost hammer rack in the limiting rod unit, the other head end of the tail end limiting shaft is inserted into a shaft hole of the first non-tail end limiting shaft through a positioning hole on the second hammer rack in the limiting rod unit, shaft shoulders of two head ends of the tail end limiting shaft are respectively limited by the right side wall of the leftmost hammer rack in the limiting rod unit and the left side wall of the second hammer rack, the head end of the first non-tail end limiting shaft is inserted into a shaft hole of the next non-tail end limiting shaft, namely the second non-tail end limiting shaft, the shaft shoulder of the head end of the first non-tail end limiting shaft is limited by the left side wall of the third hammer rack, the other end of the first non-tail end limiting shaft is limited by the right side wall of the second hammer rack, the non-tail end limiting shafts are sequentially arranged until the last non-tail end limiting shaft, the last non-tail end limiting shaft is inserted into the right side wall of the rightmost hammer rack in the last hammer rack, and the last hammer rack is positioned by the last hammer rack.
All the hammer piece frames are connected with the corresponding limiting rod piece units into a whole, the extending end of the inner side (namely one side of the non-working end of each hammer piece) of each hammer piece is positioned in a separation cavity between a pair of corresponding limiting disks (namely in a cavity, the width of the separation cavity is slightly larger than the thickness of the hammer piece), so that the left side and the right side of the extending end of the inner side of each hammer piece are axially limited by one limiting disk respectively (the axial limitation refers to limitation along the axial direction of a hammer piece shaft), and the axial movement of each hammer piece along the hammer piece shaft is limited.
In the above technical solution, a preferable technical solution may be that the outer surface of each of the non-tail-end limiting shaft and the tail-end limiting shaft is preferably an outer circumferential surface. The number of the hammer piece shafts can be four, the number of the limiting rod pieces is four, the number of the hammer pieces between two adjacent hammer piece frames can be two, each group of hammer piece shaft holes in each hammer piece frame is provided with four hammer piece shaft holes, and each hammer piece frame is provided with four positioning holes; the outer surface of each non-tail-end limiting shaft and the outer surface of each tail-end limiting shaft are outer circumferential surfaces, each limiting disc can be circular (circular), and two pairs of limiting discs are welded on the outer circumferential surface of each non-tail-end limiting shaft and the outer circumferential surface of each tail-end limiting shaft.
In the above technical solution, it is preferable that each of the hammer blade holders has two sets of hammer blade shaft holes for respectively positioning the hammer blade shafts at two (different) mounting stations, the two sets of hammer blade shaft holes are divided into a first set of hammer blade shaft holes and a second set of hammer blade shaft holes, the center distance between two adjacent hammer blade shaft holes in the first set of hammer blade shaft holes is greater than the center distance between two adjacent hammer blade shaft holes in the second set of hammer blade shaft holes, the center distance between each hammer blade shaft hole in the first set of hammer blade shaft holes and the corresponding hammer blade holder is greater than the center distance between each hammer blade shaft hole in the second set of hammer blade shaft holes and the corresponding hammer blade holder, the center distance between each hammer blade shaft hole in the second set of hammer blade shaft holes and the corresponding hammer blade holder is greater than the center distance between each positioning hole and the hammer blade holder, that the center distance between the center of the three sets of hammer blade shaft holes and the hammer blade holder is different, and the center distance between each hammer blade shaft hole in the first set of hammer blade shaft holes and the corresponding hammer blade shaft holes is equal to the center distance between each other limit rod member rod hole (3626).
The spindle heads (cylindrical) of the non-tail-end limiting shafts and the spindle heads (cylindrical) of the tail-end limiting shafts are in clearance fit with the positioning holes (round holes) on the hammer sheet frame through which the spindle heads (cylindrical) pass and which are correspondingly penetrated; the shaft heads of the non-tail-end limiting shafts, the shaft heads of the tail-end limiting shafts and the shaft holes (round holes) of the non-tail-end limiting shafts, which are inserted into the shaft heads, are in clearance fit. The fit clearance between the spindle heads of the non-tail end limiting shafts and the spindle heads of the tail end limiting shafts and the positioning holes in the hammer sheet frame through which the spindle heads pass is preferably 0.1-0.2 mm (not only limited to the numerical range, but also can be other numerical values); the fit clearance between the axle heads of the non-tail-end limiting axles and the axle holes of the non-tail-end limiting axles inserted into the axle holes is preferably 0.1-0.2 mm (not only limited to the range of the numerical value, but also can be other numerical values).
The invention is provided with a hammer rack, a hammer shaft, a hammer and a limiting body. The limiting body is provided with a plurality of limiting rod pieces, each limiting rod piece is composed of a plurality of limiting rod piece units, and each limiting rod piece unit is provided with a plurality of non-tail-end limiting shafts, tail-end limiting shafts and a plurality of pairs of limiting discs. The outer surface of each non-tail-end limiting shaft and the outer surface of the tail-end limiting shaft are respectively provided with a plurality of pairs of limiting discs, one end of each non-tail-end limiting shaft is provided with a shaft head, the other end of each non-tail-end limiting shaft is provided with a shaft hole, and two ends of each tail-end limiting shaft are provided with shaft heads. The invention provides a combined connecting structure of limiting rod piece units, wherein the inner side extending end of each hammer piece is positioned in (or extends into) a separation cavity between a pair of corresponding limiting disks. Therefore, a plurality of non-tail end limiting shafts and tail end limiting shafts are fixedly arranged on the hammer sheet frame through the matching of the positioning holes on the hammer sheet frame and the shaft heads and the shaft holes, the hammer sheet shafts respectively penetrate through the corresponding hammer sheet shaft holes and are hinged with the hammer sheet frame, the hammer sheets are penetrated on the hammer sheet shafts, all the hammer sheet frames are connected with the corresponding limiting rod piece units into a whole, the inner side extending end of each hammer sheet is positioned in a partition cavity between (or extending into the inner side extending end of) each hammer sheet and a pair of corresponding limiting disks, so that the left side surface and the right side surface of the inner side extending end of each hammer sheet are respectively axially limited by one limiting disk (namely the left side surface and the right side surface of the inner side extending end of each hammer sheet are respectively axially limited by one limiting disk), and the axial movement of each hammer sheet along the hammer sheet shafts is limited. When the hammer sheet is replaced, the hammer sheet shaft is only pulled away to lead the old hammer sheet to fall off, and the new hammer sheets are sequentially put on.
The invention has the technical effects that: the hammer sheet replacing time of a hammer sheet type pulverizer user is greatly reduced (the hammer sheet replacing time is shortened by more than 25%), the workload is reduced, the work efficiency is improved by more than 30%, and the time and the labor are saved when the hammer sheet is replaced. The invention does not need to install the hammer sheet spacer bush on the hammer sheet shaft, and also solves the problem that the gap size of the hammer sheet is adjusted by other forms of hammer sheet limiting devices although the hammer sheet spacer bush is saved.
In conclusion, the invention provides the limiting device for conveniently replacing the hammer sheet for the hammer sheet type crusher, the position of the hammer sheet can be limited without a hammer sheet spacer sleeve, the limiting device does not need to be replaced due to abrasion, the limiting device does not need to be disassembled when the hammer sheet is replaced, the hammer sheet is more convenient to replace, the time for a user to replace the hammer sheet is shortened, and the workload is reduced.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view taken along line K-K in fig. 1.
Fig. 3 is a partially enlarged view of the portion i in fig. 2.
Fig. 4 is a schematic structural view of a non-tail-end limiting shaft connected to two pairs of limiting discs in the limiting body (limiting rod unit) according to the present invention.
Fig. 5 is a cross-sectional view taken along line a-a of fig. 4.
Fig. 6 is a schematic structural view of a structure in which a tail end limiting shaft is connected to two pairs of limiting discs in a limiting body (a limiting rod unit) according to the present invention.
Fig. 7 is a cross-sectional view taken along line B-B of fig. 6.
Fig. 8 is a schematic view of a hammer piece holder according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: as shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8, the stopper device for a hammer mill, which is convenient for replacing hammers, according to the present invention includes a plurality of hammer holders 1, a plurality of hammer shafts 6, a plurality of hammers 4, and a stopper body 5 for stopping the plurality of hammers. Each hammer piece frame 1 is provided with a group of hammer piece shaft holes (a group of hammer piece shaft hole groups) which enable the hammer piece shafts to be located at one installation station, each group of hammer piece shaft holes on each hammer piece frame is provided with a plurality of hammer piece shaft holes 3 which are used for enabling the hammer piece shafts to penetrate and correspond to the hammer piece shafts one by one, the number of the hammer piece shaft holes in each group of hammer piece shaft holes is the same as that of the hammer piece shafts, the projection of the transverse central lines of the hammer piece shaft holes 3 in each group of hammer piece shaft holes on each hammer piece frame in a plane perpendicular to the transverse central lines is concentric (namely the central points of the hammer piece shaft holes in each group of hammer piece shaft holes on each hammer piece frame are on the same circumference), and the hammer piece shaft holes 3 in each group of hammer piece shaft holes on each hammer piece frame 1 are uniformly distributed along the circumferential direction. Each hammer leaf shaft 6 respectively passes through the corresponding hammer leaf shaft holes on the hammer leaf frames 1 to be hinged with the hammer leaf frames 1, and the hammer leaves 4 are threaded on the hammer leaf shafts 6. As shown in fig. 2, 3 and 7, each hammer piece holder 1 is connected with a spindle 8 through a key, two adjacent hammer piece holders 1 are supported by a spindle spacer 7, and the hammer piece holder 1 and the spindle spacer 7 are tightly clamped and locked by a round nut and a stop washer on the outer side surface of the outermost hammer piece holder 1.
As shown in fig. 1, 2, 3, 4, 5, 6, 7, and 8, the limiting body 5 has a plurality of combined limiting rods corresponding to the plurality of hammer spindles one by one, the number of limiting rods is the same as the number of hammer spindles 6, each limiting rod is composed of a plurality of limiting rod units (two adjacent limiting rod units are disconnected), each limiting rod unit has a plurality of non-tail-end limiting shafts 501, tail-end limiting shafts 501 ', a total plurality of pairs of limiting discs 502 arranged in pairs, a plurality of pairs (two pairs) of limiting discs 502 are mounted on the outer surface (side, which may be an outer circumferential surface) of each non-tail-end limiting shaft 501 and the outer surface (side, which may be an outer circumferential surface) of the tail-end limiting shaft 501', the number of pairs of limiting discs on each non-tail-end limiting shaft and the number of limiting discs on the tail-end limiting shaft are the same as the number of corresponding hammer discs located between two adjacent hammer carriers, one by one, the number of limiting discs are equal to the number of hammer spindles 501, and the number of transverse positioning holes 352 of the limiting discs are uniformly distributed on the central lines of the positioning holes of the non-tail-end limiting shafts 501, and the central lines of the hammer carriers are uniformly distributed on the central lines of the plurality of hammer carriers 352 positioning holes of the positioning holes 352 positioning holes of the vertical positioning holes of the hammer carriers, wherein the plurality of the limiting rods are uniformly distributed on the vertical positioning holes, the vertical positioning holes, and the vertical positioning holes are uniformly distributed on the multiple positioning holes, one more than one, and the central lines of the:
①, a plurality of non-tail end limiting shafts and tail end limiting shafts are sequentially arranged from left to right, the head end of the first non-tail end limiting shaft in the plurality of non-tail end limiting shafts 501 is inserted into the positioning hole 2 of the leftmost hammer holder 1, i.e. the first hammer holder 1, the shoulder of the head end of the first non-tail end limiting shaft is limited by the right side wall of the first hammer holder, the other end of the first non-tail end limiting shaft is limited by the left side wall of the second hammer holder, the head end of the next non-tail end limiting shaft, i.e. the second non-tail end limiting shaft 501, is inserted into the shaft hole of the last non-tail end limiting shaft, i.e. the first non-tail end limiting shaft 501, the shoulder of the head end of the second non-tail end limiting shaft 501 is limited by the right side wall of the second hammer holder, the other end of the second non-tail end limiting shaft is inserted into the left side wall of the last non-tail end limiting shaft, i.e. the first non-tail end limiting shaft 501, i.e. the shaft hole 2, the head end of the second non-tail end limiting shaft 501 is inserted into the left side wall of the last hammer holder, the left side wall of the first hammer holder, the non-tail end limiting shaft 1 or the last hammer holder, the non-tail end limiting shaft 501 is inserted into the left side wall of the last hammer holder, the left side wall of the,
② A tail end limiting shaft and a plurality of non-tail end limiting shafts are sequentially arranged from left to right, one shaft head end of the tail end limiting shaft is inserted into a positioning hole 2 of a leftmost hammer holder 1 in the limiting rod member unit, the other shaft head end of the tail end limiting shaft is inserted into a shaft hole of a first non-tail end limiting shaft through a positioning hole 2 on a second hammer holder 1 in the limiting rod member unit, shaft shoulders of the two shaft head ends of the tail end limiting shaft are respectively limited by the right side wall of the leftmost hammer holder and the left side wall of the second hammer holder in the limiting rod member unit, the shaft head end of the first non-tail end limiting shaft is inserted into a shaft hole of a next non-tail end limiting shaft, namely the second non-tail end limiting shaft 501, the shaft shoulder of the shaft head end of the first non-tail end limiting shaft is limited by the left side wall of the third hammer holder, the other end of the first non-tail end limiting shaft is limited by the right side wall of the second hammer holder, the non-tail end limiting shafts are sequentially arranged to the last shaft head end and inserted into the right side wall of the last hammer holder and the last hammer holder of the last hammer holder 1 in the last hammer holder in the limiting rod member unit.
All the hammer leaf frames are connected with the corresponding limiting rod piece units into a whole, the extending end of the inner side of each hammer leaf 4 is positioned in a separation cavity between a pair of limiting discs 502 corresponding to the hammer leaf (the width of the separation cavity is slightly larger than the thickness of the hammer leaf 4, and the width of the separation cavity between the pair of limiting discs can be 2-3 mm larger than the thickness of the hammer leaf, so that the width of the separation cavity is not limited to the numerical range, but can be other numerical values), and the left side surface and the right side surface of the extending end of the inner side of each hammer leaf are axially limited by one limiting disc, so that the axial movement of each hammer leaf 4 along the hammer leaf shaft 6 is limited. Each of the non-tail-end limiting shaft 501 and the tail-end limiting shaft 501' may be made of round steel, each of the limiting discs 502 may be made of a (thin) steel plate, and each of the limiting discs 502 may be in a circular shape (or may be in a polygonal shape or other shapes).
As shown in fig. 1, 2, 3, 4, 5, 6, 7, and 8, the number of the hammer shafts 6 is four, the number of the limiting rod members is four, the number of the hammer sheets 4 between two adjacent hammer frames 1 is two, each set of hammer shaft holes on each hammer frame 1 has four hammer shaft holes 3, each hammer frame 1 has four positioning holes 2, the outer surface of each non-tail-end limiting shaft 501 and the outer surface of the tail-end limiting shaft 501 'are both outer circumferential surfaces, each limiting disc 502 may be circular, two pairs of limiting discs 502 are welded on the outer circumferential surface of each non-tail-end limiting shaft 501 and the outer circumferential surface of the tail-end limiting shaft 501', each limiting rod member may have a limiting rod member unit, at this time, each limiting rod member (i.e., one limiting rod member unit) may have one of the two structures ①, ②, each limiting rod member may also have two limiting rod members, the two limiting rod member units are divided into a left limiting rod member unit, a right limiting rod member unit, a left limiting rod unit may be matched with a left limiting shaft head unit, a left limiting rod member unit, a right rod member shaft head may also be matched with a cylindrical shaft head, or a cylindrical shaft head may be matched with a cylindrical shaft head, a cylindrical shaft head structure with a cylindrical shaft head of the non-tail-end limiting shaft head structure (360 shaft head) through a cylindrical shaft head structure, 360 shaft head may also be matched with a cylindrical shaft head 26, a cylindrical shaft head structure, a cylindrical shaft head may also be matched with a cylindrical shaft head structure.
Example 2: as shown in fig. 1, 2, 3, 4, 5, 6, 7 and 8, the stopper device for a hammer mill, which is convenient for replacing hammers, according to the present invention includes a plurality of hammer holders 1, a plurality of hammer shafts 6, a plurality of hammers 4, and a stopper body 5 for stopping the plurality of hammers. Two groups of hammer piece shaft holes (two groups of hammer piece shaft hole groups) which enable the hammer piece shafts to be respectively positioned at two (different) mounting stations are arranged on each hammer piece frame 1, each group of hammer piece shaft holes on each hammer piece frame are provided with a plurality of hammer piece shaft holes 3 which are used for the plurality of hammer piece shafts to pass and correspond to the plurality of hammer piece shafts one by one, the number of the plurality of hammer piece shaft holes in each group of hammer piece shaft holes is the same as that of the hammer piece shafts, the projection of the transverse central lines of the plurality of hammer piece shaft holes 3 in each group of hammer piece shaft holes on each hammer piece frame in a plane perpendicular to the transverse central lines is concentric (namely the central points of the plurality of hammer piece shaft holes in each group of hammer piece shaft holes on each hammer piece frame are on the same circumference), and the plurality of hammer piece shaft holes 3 in each group of hammer piece shaft holes on each hammer piece frame 1 are uniformly distributed along the circumferential direction. Each hammer leaf shaft 6 respectively passes through the corresponding hammer leaf shaft holes on the hammer leaf frames 1 to be hinged with the hammer leaf frames 1, and the hammer leaves 4 are threaded on the hammer leaf shafts 6. As shown in fig. 2, 3 and 7, each hammer piece holder 1 is connected with a spindle 8 through a key, two adjacent hammer piece holders 1 are supported by a spindle spacer 7, and the hammer piece holder 1 and the spindle spacer 7 are tightly clamped and locked by a round nut and a stop washer on the outer side surface of the outermost hammer piece holder 1.
As shown in fig. 1, 2, 3, 4, 5, 6, 7, and 8, the limiting body 5 has a plurality of combined limiting rod members corresponding to the plurality of hammer shafts one by one, the number of the limiting rod members is the same as the number of the hammer shafts 6, each limiting rod member is composed of a plurality of limiting rod member units, each limiting rod member unit has a plurality of non-tail-end limiting shafts 501, tail-end limiting shafts 501 ', a total plurality of pairs of limiting disks 502 arranged in pairs, the outer surface (side, which may be an outer circumferential surface) of each non-tail-end limiting shaft 501, the outer surface (side, which may be an outer circumferential surface) of the tail-end limiting shaft 501' is provided with a plurality of pairs (two pairs) of limiting disks 502, the number of the pairs of limiting disks on each non-tail-end limiting shaft is the same as the number of the corresponding limiting disks between two adjacent hammer carriers, one end of each non-tail-end limiting shaft 501 has a shaft hole 501, the number of the pairs of the limiting disks on each non-tail-end limiting shaft is the same as the number of the corresponding limiting disks located between two adjacent hammer carriers, the limiting disks located between the adjacent two hammer carriers, the non-tail-end limiting disks 501, the non-tail-end limiting shafts 501, the limiting disks are not only one, the limiting shaft 501 has a plurality of limiting disks, the limiting disks are formed by the limiting disks, the width of limiting disks, the limiting disks is formed by the limiting disks, the limiting disks is formed by the limiting rods, the width of the limiting disks, the width of the limiting disks is equal to be formed by the width of the limiting disks, the width of the limiting disks, the.
In the embodiment, the distance between the spindle head 1 and the spindle head 1 of each non-tail-end limiting shaft 501 and the spindle head 501 'is equal to the distance between the spindle head 1 of the hammer set and the spindle head 2 of the hammer set, and the distance between the spindle head 1 of each non-tail-end limiting shaft 501 and the spindle head 501' is equal to the distance between the spindle head 1 of the hammer set and the spindle head 2 of the hammer set, or equal to the distance between the spindle head 1 of the hammer set and the spindle head 2 of the spindle head 1 of the hammer set, or equal to the distance between the spindle head 1 of the hammer set and the spindle head of the hammer set, or the spindle head of the spindle can be equal to the spindle head, or equal to the spindle head of the spindle head.
The term "plurality" as used in the above-mentioned respective (parts) means three or more.
The technical effects of the above embodiments of the present invention are: the time for replacing the hammer sheet of a hammer sheet type pulverizer user is greatly reduced by more than 25%, the workload is reduced, the work efficiency is improved by more than 30%, and the time and the labor are saved when the hammer sheet is replaced. The invention does not need to install the hammer sheet spacer bush on the hammer sheet shaft, and also solves the problem that the gap size of the hammer sheet is adjusted by other forms of hammer sheet limiting devices although the hammer sheet spacer bush is saved.
In conclusion, the invention provides the limiting device for conveniently replacing the hammer sheet for the hammer sheet type crusher, the position of the hammer sheet can be limited without a hammer sheet spacer sleeve, the limiting device does not need to be replaced due to abrasion, the limiting device does not need to be disassembled when the hammer sheet is replaced, the hammer sheet is more convenient to replace, the time for a user to replace the hammer sheet is shortened, and the workload is reduced.
Claims (9)
1. A limiting device for conveniently replacing hammer sheets for a hammer sheet type crusher is provided with a plurality of hammer sheet frames (1), a plurality of hammer sheet shafts (6), a plurality of hammer sheets (4) and a limiting body (5) for limiting the hammer sheets, wherein each hammer sheet frame (1) is provided with a plurality of groups of hammer sheet shaft holes which enable the hammer sheet shafts to be respectively positioned at a plurality of installation stations, each group of hammer sheet shaft holes on each hammer sheet frame are provided with a plurality of hammer sheet shaft holes (3) which are used for the hammer sheet shafts to pass through and correspond to the hammer sheet shafts one by one, the projection of the transverse central lines of the hammer sheet shaft holes (3) in each group of hammer sheet shaft holes on each hammer sheet frame in a plane perpendicular to the transverse central lines is homocentric, the hammer sheet shaft holes (3) in each group of hammer sheet shaft holes on each hammer sheet frame (1) are uniformly distributed along the circumferential direction, each hammer sheet shaft (6) respectively passes through the hammer sheet shaft holes corresponding to the hammer sheet frames (1) on the hammer sheet frames and is hinged with the hammer sheet frames (1), the hammer is characterized in that the limiting body (5) is provided with a plurality of combined limiting rod pieces which correspond to the hammer shafts one by one, each limiting rod piece is composed of a plurality of limiting rod piece units, each limiting rod piece unit is provided with a plurality of non-tail end limiting shafts (501), tail end limiting shafts (501 ') and a plurality of pairs of limiting discs (502) which are arranged in pairs, the number of pairs of limiting discs (502) is arranged on the outer surface of each non-tail end limiting shaft (501) and the outer surface of each tail end limiting shaft (501'), the number of pairs of limiting discs on each non-tail end limiting shaft and the number of pairs of limiting discs on each tail end limiting shaft are the same as the number of corresponding hammers between two adjacent sheet racks, one end of each non-tail end limiting shaft (501) is provided with a shaft head, and the other end of each non-tail end limiting shaft (501) is provided with a shaft hole, two ends of the tail end limiting shaft (501') are provided with shaft heads; each hammer piece frame (1) is provided with a plurality of positioning holes (2) which correspond to the limiting rod pieces one by one, the projections of the transverse center lines of the positioning holes (2) on each hammer piece frame in a plane perpendicular to the transverse center lines are concentric, and the positioning holes (2) on each hammer piece frame are uniformly distributed along the circumferential direction;
the combined connecting structure of each limit rod piece unit adopts one of the following two structures ① and ②:
①, a plurality of non-tail end limiting shafts and tail end limiting shafts are sequentially arranged from left to right, the shaft head end of the first non-tail end limiting shaft in the plurality of non-tail end limiting shafts (501) is inserted into the positioning hole (2) of the leftmost hammer sheet rack (1) in the limiting rod member unit, the shaft shoulder of the shaft head end of the first non-tail end limiting shaft is limited by the right side wall of the first hammer sheet rack, the other end of the first non-tail end limiting shaft is limited by the left side wall of the second hammer sheet rack, the shaft head end of the next non-tail end limiting shaft, namely the second non-tail end limiting shaft (501), is inserted into the shaft hole of the last non-tail end limiting shaft, namely the first non-tail end limiting shaft (501), the shaft shoulder of the shaft head end of the second non-tail end limiting shaft (501) is limited by the right side wall of the second hammer sheet rack, the other end of the second non-tail end limiting shaft is inserted into the shaft hole of the last non-tail end limiting shaft, namely the shaft (1) from the left side wall of the third hammer sheet rack, the shaft head end of the first non-tail end limiting shaft (501) is connected with the last hammer sheet rack, the left side wall of the last hammer sheet rack, the left side wall of the hammer sheet rack is connected with the shaft head end of the hammer sheet rack, the hammer sheet rack is connected with the shaft head end of the hammer sheet rack, the hammer,
②, a tail end limiting shaft and a plurality of non-tail end limiting shafts are sequentially arranged from left to right, one head end of the tail end limiting shaft is inserted into a positioning hole (2) of a leftmost hammer leaf rack (1) in the limiting rod piece unit, the other head end of the tail end limiting shaft is inserted into a shaft hole of a first non-tail end limiting shaft through the positioning hole (2) on a second hammer leaf rack (1) in the limiting rod piece unit, shaft shoulders of two head ends of the tail end limiting shaft are respectively limited by the right side wall of the leftmost hammer leaf rack and the left side wall of the second hammer leaf rack in the limiting rod piece unit, the head end of the first non-tail end limiting shaft is inserted into the shaft hole of the next non-tail end limiting shaft (501) through the positioning hole (2) on the third hammer leaf rack, the shaft shoulder of the head end of the first non-tail end limiting shaft (501) is limited by the left side wall of the third hammer leaf rack, the other end of the first non-tail end limiting shaft is connected with the right side wall of the second non-tail end limiting shaft rack according to the right side wall of the last hammer leaf rack, and the last hammer leaf shaft head end of the last hammer leaf rack is inserted into the shaft wall of the last hammer leaf rack, the non-tail end limiting shaft (2) of the last hammer leaf rack, the non-tail end limiting shaft is inserted into the left side wall of the last hammer leaf rack, and the last hammer leaf rack of the last hammer leaf rack;
all the hammer leaf frames are connected with the corresponding limiting rod piece units into a whole, the inner side extending end of each hammer leaf (4) is positioned in the separation cavity between the corresponding pair of limiting discs (502), and the left side surface and the right side surface of the inner side extending end of each hammer leaf are axially limited by one limiting disc.
2. The apparatus for limiting the number of replaceable hammers in a beater mill according to claim 1, wherein the outer surface of each of the non-trailing-end limiting shafts (501) and the outer surface of the trailing-end limiting shaft (501') are outer circumferences.
3. The limiting device for conveniently replacing the hammer for the hammer mill according to claim 1, wherein the number of the hammer shafts (6) is four, the number of the limiting rod members is four, the number of the hammers (4) between two adjacent hammer frames (1) is two, each group of hammer shaft holes on each hammer frame (1) is provided with four hammer shaft holes (3), and each hammer frame (1) is provided with four positioning holes (2); the outer surface of each non-tail-end limiting shaft (501) and the outer surface of the tail-end limiting shaft (501 ') are outer circumferential surfaces, each limiting disc (502) is circular, and two pairs of limiting discs (502) are welded on the outer circumferential surface of each non-tail-end limiting shaft (501) and the outer circumferential surface of the tail-end limiting shaft (501').
4. The limiting device for conveniently replacing the hammer for the hammer mill according to claim 1, wherein each hammer frame (1) is provided with two sets of hammer shaft holes for respectively positioning the hammer shafts at two mounting stations, the two sets of hammer shaft holes are divided into a first set of hammer shaft holes and a second set of hammer shaft holes, the center distance between two adjacent hammer shaft holes in the first set of hammer shaft holes is greater than the center distance between two adjacent hammer shaft holes in the second set of hammer shaft holes, the center distance between each hammer shaft hole in the first set of hammer shaft holes and the corresponding hammer frame (1) is greater than the center distance between each hammer shaft hole in the second set of hammer shaft holes and the corresponding hammer frame (1), the center distance between each hammer shaft hole in the second set of hammer shaft holes and the corresponding hammer frame (1) is greater than the center distance between each positioning hole (2) and the hammer frame (1), and one hammer shaft hole in the first set of hammer shaft holes and one adjacent hammer shaft hole in the second set of hammer shaft holes are greater than the center distance between each positioning hole (2) and the hammer frame (1), and one hammer shaft hole in the first set of hammer shaft holes is greater than the The holes and an adjacent positioning hole form a cluster hole, two hammer sheet shaft holes (3) and a positioning hole (2) which are not in the same group are arranged in the cluster hole, and in each cluster hole, the center distance between the hammer sheet shaft hole in the first group of hammer sheet shaft holes and the positioning hole is equal to the center distance between the hammer sheet shaft hole in the second group of hammer sheet shaft holes and the positioning hole.
5. The limiting device for conveniently replacing the hammer of the hammer mill as claimed in claim 1, wherein the width of the compartment between the pair of limiting discs (502) is 2-3 mm larger than the thickness of the hammer.
6. The position limiter for hammer mill of claim 1, wherein each of the position limiter bars is formed of a position limiter bar unit.
7. The position limiter for hammer mill of claim 1, wherein each of the position limiter units comprises two position limiter units, each of the position limiter units comprises a left position limiter unit and a right position limiter unit, the left position limiter unit is symmetrical to the right position limiter unit, the right position limiter unit is of the structure ①, and the left position limiter unit is of the structure ②.
8. The limiting device for conveniently replacing the hammer for the hammer mill according to claim 1, wherein the shaft heads of the non-tail-end limiting shafts (501), the shaft heads of the tail-end limiting shafts (501') and the positioning holes (2) on the hammer frame through which the shaft heads pass are in clearance fit; the shaft heads of the plurality of non-tail end limiting shafts (501), the shaft heads of the tail end limiting shafts (501') and the shaft holes of the non-tail end limiting shafts into which the shaft heads are inserted are in clearance fit.
9. The limiting device for conveniently replacing the hammer for the hammer mill according to claim 8, wherein the fit clearance between the shaft heads of the non-tail-end limiting shafts (501), the shaft heads of the tail-end limiting shafts (501') and the positioning holes (2) on the hammer frame through which the shaft heads pass is 0.1-0.2 mm; the fit clearance between the shaft heads of the plurality of non-tail end limiting shafts (501), the shaft heads of the tail end limiting shafts (501') and the shaft holes of the non-tail end limiting shafts into which the shaft heads are inserted is 0.1-0.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811305171.XA CN109261293B (en) | 2018-11-05 | 2018-11-05 | Limiting device for conveniently replacing hammer sheet for hammer sheet type crusher |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811305171.XA CN109261293B (en) | 2018-11-05 | 2018-11-05 | Limiting device for conveniently replacing hammer sheet for hammer sheet type crusher |
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| CN109261293A CN109261293A (en) | 2019-01-25 |
| CN109261293B true CN109261293B (en) | 2020-04-24 |
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| CN201023055Y (en) * | 2007-03-30 | 2008-02-20 | 孟维安 | Rotor assembly of feed grinder |
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| CN102049333A (en) * | 2010-12-31 | 2011-05-11 | 江苏正昌粮机股份有限公司 | Novel hammer piece crusher |
| CN103706456A (en) * | 2013-12-23 | 2014-04-09 | 崔英辉 | Method of replacing quick-wear parts of rotor of hammer mill and template used in method |
| CN203750602U (en) * | 2014-04-01 | 2014-08-06 | 唐山市丰南区双义饲料机械有限公司 | Roller type rotor of crushing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3844494A (en) * | 1973-02-01 | 1974-10-29 | Ferromet Inc | Hammer mill rotor assembly |
| CN201023055Y (en) * | 2007-03-30 | 2008-02-20 | 孟维安 | Rotor assembly of feed grinder |
| CN201353513Y (en) * | 2009-01-21 | 2009-12-02 | 孟维安 | Cylinder hammer blade limiting mechanism of crusher |
| CN102049333A (en) * | 2010-12-31 | 2011-05-11 | 江苏正昌粮机股份有限公司 | Novel hammer piece crusher |
| CN103706456A (en) * | 2013-12-23 | 2014-04-09 | 崔英辉 | Method of replacing quick-wear parts of rotor of hammer mill and template used in method |
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| CN109261293A (en) | 2019-01-25 |
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Address after: 052460 Chengbei Industrial Zone, Wuji County, Shijiazhuang City, Hebei Province Patentee after: Hebei Yuanda Shuangxuan Technology Co.,Ltd. Address before: 052460 Chengbei Industrial Zone, Wuji County, Shijiazhuang City, Hebei Province Patentee before: HEBEI YUANDA SHUANGXUAN FEED MACHINERY Co.,Ltd. |