Hammer crusher and crushing gap adjusting method

Abstract

The invention relates to the technical field of crushers, in particular to a hammer crusher and a crushing gap adjusting method. The device comprises a shell, and a feeding port and a discharging port are formed in the shell; the rotor hammer seat is rotationally arranged in the shell, and a plurality of hammer heads are arranged on the rotor hammer seat; the movable support is movably arranged on the shell, and the side, close to the hammer head, of the movable support is provided with an impact beating plate used for bearing materials beaten out by the hammer head; the adjusting mechanism is arranged on the shell and used for adjusting the size of a crushing gap between the movable support and the hammer head, the adjusting mechanism and the movable support are provided with a movable installation assembly in a matched mode, and the movable installation assembly is used for absorbing the corner difference generated by the movable support and the adjusting mechanism when the movable support rotates around the hinged position. The size of the crushing gap between the impact beating plate on the movable support and the hammer head is adjusted through the adjusting mechanism, and the problems that the crushing effect is poor and the crushing gap adjusting range is very small due to the fact that the crushing gap is enlarged due to abrasion of the impact beating plate and the hammer head are solved.

Description

Technical Field

[0001] The invention relates to the technical field of crushers, in particular to a hammer crusher and a method for adjusting a crushing gap. Background Art

[0002] At present, the high-fine crusher of blocky raw materials generally adopts a rotary hammer crusher. The material enters the cavity through the feed port and falls on the high-speed rotating movable striking hammer. After the action between the hammer and the impact plate, the material is crushed in the hammering area after repeated high-frequency hammering and impact, thus achieving the effect of fine crushing. However, while the material is being crushed, the hammer head also experiences high-frequency hitting. Severe wear of the hammer head and the impact plate will increase the crushing gap between the impact plate and the hammer head, resulting in poor crushing effect and insufficient output. Conventional crushers cannot adjust the size of the crushing gap between the hammer head and the impact plate. After a period of use, the impact plate and the hammer head wear and the gap becomes larger, and the hammer head and the impact plate need to be replaced. A complete set of hammer heads needs to be replaced every 3-4 months, and the cost of use is relatively high.

[0003] In one prior art, an impact plate is hinged on the inner wall of a frame, an impact block is arranged on the impact plate, the middle part of the impact plate is suspended on the frame by a pull rod spring, one end of the pull rod spring is hinged on the impact plate, when the impact plate rotates around the hinge with the frame, the connection part with the pull rod spring shows an arc-shaped motion trajectory, instead of linear motion in the direction of adjusting the spacing, and an angle difference will be generated at the connection between the impact plate and the pull rod spring before and after the rotation. The pull rod spring moves axially and the connection method of the hinged impact plate makes the above-mentioned adjustable gap range of the pull rod spring very small, or even unable to play an adjusting role.

[0004] In another prior art, an ultra-large feed impact crusher, the patent has a method of adjusting the impact plate similar to the above-mentioned prior art, supporting the impact plate through a pressure spring, and the impact plate is fixedly connected with a spring pull rod in the figure, and the specific connection method is not described in the text. The adjustable gap range is very small, and it may not even play a role in regulation. Summary of the invention

[0005] The main purpose of the present invention is to solve the problem that the wear of the impact plate and the hammer head causes the crushing gap to become larger, resulting in poor crushing effect and a small range for adjusting the crushing gap, and to provide a hammer crusher and a method for adjusting the crushing gap.

[0006] The technical solution adopted by the present invention is: a hammer crusher, the device comprises:

[0007] A shell body, wherein the shell body is provided with a feed inlet and a discharge outlet;

[0008] A rotor hammer seat, the rotor hammer seat is rotatably arranged in the housing, and a plurality of hammer heads are arranged on the rotor hammer seat;

[0009] A movable support, the movable support is hingedly arranged on the shell, and a counter-attack plate for receiving the material knocked out by the hammer is arranged on one side of the movable support close to the hammer head;

[0010] The adjusting mechanism is arranged on the shell body and is used to adjust the size of the crushing gap between the movable support and the hammer head. The adjusting mechanism and the movable support are equipped with a movable mounting component, and the movable mounting component is used to absorb the angular difference between the movable support and the adjusting mechanism when the movable support rotates around the hinge.

[0011] Furthermore, the movable mounting component comprises a mounting plate arranged on the movable support and a connecting shaft arranged on the adjustment mechanism, the mounting plate and the connecting shaft are respectively provided with a mounting slot and a connecting slot located at the mounting slot, and a movable gap is provided between the connecting slot and the mounting plate.

[0012] Furthermore, one end of the mounting slot extends out of an edge of the mounting plate.

[0013] Furthermore, the connecting slot is wedge-shaped, with one end of the connecting slot close to the hinge of the movable support clamped to the mounting plate, and the other end leaving a movable space for the mounting plate in the connecting slot when the movable support rotates around the hinge.

[0014] Furthermore, when the mounting plate moves in the connecting slot until the crushing gap reaches an end value, the mounting plate is in surface contact with the slot wall of the connecting slot.

[0015] Furthermore, one end of the connecting slot that is connected to the mounting plate is a chamfered structure; the chamfered structure includes an arc-shaped chamfer.

[0016] Furthermore, the connecting shaft is hinged with clamps for clamping the mounting plate on both sides of the connecting slot. After the two clamps clamp the mounting plate, they can rotate around the hinge in the connecting slot when the movable support rotates, and the rotation angle range is limited by the side walls of the connecting slot.

[0017] Furthermore, a first slot is provided on the clamping plate, which is used to be inserted into the connecting slot to avoid the connecting shaft being located at a section of the connecting slot.

[0018] Furthermore, one end of the two clamping plates on the facing sides is an arc-shaped chamfered structure.

[0019] Furthermore, the adjustment mechanism is axially adjustable and arranged on the housing; the adjustment mechanism includes a screw threadedly connected to the housing and a screw member fixed to one end of the screw; the other end of the screw is connected to the movable support through a movable mounting assembly.

[0020] Furthermore, the adjustment mechanism also includes a fixed support and a plurality of plug-in pads with a second slot, the fixed support is fixed on the shell and is provided with a threaded hole; the plurality of plug-in pads include thicknesses of various specifications and can be plugged into the connecting shaft between the mounting plate and the fixed support to fix the mounting plate to the fixed support.

[0021] Furthermore, the counter-attack clapper includes a plurality of hammer heads, which are arranged in an arc shape on a movable support; the movable support is provided with a plurality of rows of stepped mounting positions, each row of mounting positions is provided with a plurality of hammer heads, and the plurality of hammer heads are fixedly installed on the mounting positions to form a serrated structure in the direction of the steps.

[0022] Furthermore, the movable supports and the adjustment mechanisms are each provided with two groups, and the counter-attack plates of the two groups of movable supports are arranged in an arc-shaped structure.

[0023] Furthermore, a plurality of mounting hammer plates are fixedly arranged on the rotor hammer seat at intervals in the circumferential direction, and the mounting hammer plates are provided with the hammer heads.

[0024] Furthermore, it also includes a driving mechanism that is transmission-connected to the rotor hammer seat and is used to drive the rotor hammer seat to rotate.

[0025] Furthermore, the driving mechanism comprises a motor, and the motor drives the rotor hammer seat to rotate by means of a transmission belt which surrounds the motor output shaft and the rotating shaft of the rotor hammer seat.

[0026] Furthermore, a secondary clapping plate is provided on the shell, and the secondary clapping plate is located above the rotor hammer seat and upstream of the movable support.

[0027] Furthermore, the secondary clapper board is provided with spurs.

[0028] Another aspect of the present invention further provides a method for adjusting the crushing gap of a crusher. Using the hammer crusher provided by the present invention, the adjustment method comprises:

[0029] The mounting slot of the mounting plate is clamped into the connecting slot of the connecting shaft, so that the mounting plate can move in the connecting slot when the movable support rotates around the hinge, and the maximum range of movement is limited by the groove wall of the connecting slot;

[0030] The operating adjustment mechanism moves the connecting shaft, drives the mounting plate located in the connecting slot to move, and makes the movable support rotate around the hinge to adjust the size of the crushing gap with the hammer head.

[0031] According to a method for adjusting the crushing gap of a crusher provided by the present invention, the mounting slot of the mounting plate is clamped into the connecting slot of the connecting shaft, including inserting the mounting plate into the connecting slot with a wedge-shaped structure and clamping one end of the connecting slot, and the mounting plate can rotate around the clamping joint when the movable support rotates around the hinge.

[0032] According to a method for adjusting the crushing gap of a crusher provided by the present invention, the mounting slot of the mounting plate is clamped in the connecting slot of the connecting shaft, including inserting the mounting plate in the connecting slot and clamping the mounting plate by clamps hinged on both sides of the connecting slot, so that when the connecting shaft moves, the mounting plate rotates around the hinge of the clamps in the two clamps.

[0033] According to a method for adjusting the crushing gap of a crusher provided by the present invention, the operating adjustment mechanism moves the connecting shaft, including rotating the screw to drive the screw to rotate, so that the axial movement of the screw drives the axial movement of the connecting shaft, thereby driving the mounting plate located in the connecting slot to move and realize the rotation of the movable support around the hinge to adjust the size of the crushing gap between the hammer head and the impact plate.

[0034] The beneficial effects of the present invention include: 1. A hammering area is formed by a shell, a rotor hammer seat is rotatably arranged in the shell to install multiple hammer heads, a movable support with an impact plate is movably arranged on the shell and can be adjusted, and the spacing between the impact plate and the hammer head of the movable support is adjusted by an adjusting mechanism. After the impact plate is worn, the crushing gap can be reduced by the adjusting mechanism to improve the crushing effect. The movable installation component can absorb the angular difference between the movable support and the adjusting mechanism when the movable support rotates around the hinge, allowing the movable support to rotate at a larger angle, that is, to adjust the crushing gap to a larger range, thereby solving the problem that the impact plate and the hammer head are worn, causing the crushing gap to become larger, resulting in poor crushing effect and a small range of adjusting the crushing gap;

[0035] 2. The movable support is connected to the housing in a simple manner. The movable mounting assembly is movably connected to the adjusting mechanism, which can absorb the angular difference between the movable support and the adjusting mechanism when the movable support rotates around the hinge, so that the movable support can rotate around the hinge and be movably connected to the adjusting mechanism at the same time, thereby realizing transmission;

[0036] 3. The structure of the movable installation assembly is simple. The mounting plate and the connecting shaft are connected to each other through the mounting slot and the connecting slot respectively. The width of the connecting slot is greater than the thickness of the mounting plate, so that the movable support and the adjustment mechanism can be flexibly connected.

[0037] 4. One end of the installation slot extends out of the edge of the installation plate, and the connecting slot of the connecting shaft can be inserted into the installation slot from the edge of the installation plate, which is convenient for installing the connecting shaft;

[0038] 5. The connecting slot is wedge-shaped, with one end clamped to the mounting plate and the other end provided with a movable space, which allows the movable support to move relative to the connecting shaft when rotating around the hinge to absorb the angle difference;

[0039] 6. The mounting plate is clamped on the connecting shaft by two clamping plates hingedly connected to expand the contact area between the connecting shaft and the mounting plate, reduce the wear of the mounting plate and the connecting shaft, and increase the service life; and the rotation angle of the clamping plate is limited by the groove wall of the connecting slot to avoid interference between the hammer head and the impact plate due to too small a crushing gap, and poor crushing effect due to too large a crushing gap;

[0040] 7. The adjustment mechanism has a simple structure. The screw is driven to rotate by the screwing part. The screw moves relatively on the shell and drives the connecting shaft to move axially, thereby driving the movable support to rotate around the hinge, thereby adjusting the size of the crushing gap.

[0041] 8. The counter-attack board of the present invention adopts multiple hammer heads, and old hammer heads can be used as counter-attack boards to save resources; multiple hammer heads are arranged in an arc shape so that the materials can be taken away by the hammer heads on the rotor hammer seat for repeated crushing; multiple hammer heads are fixedly installed in the installation position so that the edges of the hammer heads protrude to form saw teeth, which can improve the crushing effect of the counter-attack board;

[0042] 9. Due to the different degrees of wear of the impact plate and the downstream part, two sets of adjustment mechanisms are set to adjust the size of the crushing gap between the two sets of movable supports and the hammer head respectively, which can solve the problem of poor crushing effect caused by different degrees of wear;

[0043] 10. The hammer plates are installed on the rotor hammer seat at intervals in the circumferential direction to hammer the materials falling through the feed port;

[0044] 11. The auxiliary clapper can assist in crushing materials and improve the crushing efficiency and crushing effect;

[0045] 12. The adjustment method provided by the present invention can improve the adjustment range of the crushing gap between the hammer head and the impact plate, is easy to operate, and is convenient for controlling and adjusting the size of the crushing gap.

[0046] The hammer crusher involved in the present invention can adjust the size of the crushing gap between the impact plate on the movable support and the hammer head on the rotor hammer seat through an adjusting mechanism, thereby solving the problem that the crushing gap becomes larger due to the wear of the impact plate and the hammer head, resulting in poor crushing effect. It has a simple structure, is easy to use, and has great promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 : A schematic front view and cross-sectional view of the hammer crusher;

[0048] Figure 2 : Schematic diagram of the three-dimensional structure of the hammer crusher;

[0049] Figure 3 : Schematic diagram of the three-dimensional structure of the movable support;

[0050] Figure 4 : Schematic diagram of the decomposition structure of the active installation components;

[0051] Figure 5 : Structural diagram of the regulating mechanism;

[0052] Figure 6 : A schematic diagram of the state structure of the connecting shaft connecting the mounting plate;

[0053] Figure 7 : Schematic diagram of another state structure of the connecting shaft connecting the mounting plate;

[0054] Figure 8 : Schematic diagram of the connecting slot being a wedge-shaped structure;

[0055] Fig. 9 : A structural diagram of an embodiment of a connecting shaft connecting a mounting plate;

[0056] Fig.10 : Schematic diagram of the structure of the plug-in pad;

[0057] Fig.11 : Schematic diagram of the structure when the plug-in pad is used;

[0058] Among them: 1—shell; 11—feeding port; 12—discharging port; 2—rotor hammer seat; 21—hammer mounting plate; 22—hammer head; 3—movable support; 31—impact clapper; 32—first hinge shaft; 4—adjusting mechanism; 41—screw; 42—screw; 43—fixed support; 44—plug-in pad; 5—movable mounting assembly; 51—mounting plate; 511—mounting slot; 52—connecting shaft; 521—connecting slot; 522—clamp; 523—second hinge shaft; 6—driving mechanism; 7—auxiliary clapper. DETAILED DESCRIPTION

[0059] The embodiments of the present invention are described in detail below, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and the accompanying drawings are not drawn to scale and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0060] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0063] The present invention relates to a hammer crusher, which is used for crushing materials. A material box rotor hammer seat 2 is accommodated by a shell 1 to form a hammering area. The rotor hammer seat 2 is rotatably arranged in the shell 1 and multiple hammer heads 22 are installed. A movable support 3 with an impact plate 31 is movably arranged on the shell 1 and can be adjusted by an adjusting mechanism 4 to adjust the distance between the impact plate 31 of the movable support 3 and the hammer head 22. After the impact plate 31 is worn, the crushing gap can be reduced by the adjusting mechanism 4 to improve the crushing effect. The movable installation component 5 can absorb the angular difference α generated by the movable support 3 and the adjusting mechanism 4 when the movable support 3 rotates around the hinge, so that the rotation angle of the movable support 3 is larger, that is, the range of adjusting the crushing gap is larger, which solves the problem that the impact plate 31 and the hammer head 22 are worn, causing the crushing gap to become larger, resulting in poor crushing effect and a small range of adjusting the crushing gap. The structure is simple, easy to use, and has great promotion value.

[0064] A hammer crusher, such as Figure 1-11As shown, it includes a shell 1, a rotor hammer seat 2, a movable support 3 and an adjusting mechanism 4. The shell 1 is provided with a feed port 11 and a discharge port 12. The discharge port 12 is arranged at the bottom end of the shell 1 and can be arranged on the bottom surface or side of the shell 1. The discharge port 12 is provided with a control valve; the rotor hammer seat 2 is rotatably arranged in the shell 1, and a plurality of hammer heads 22 are arranged on the rotor hammer seat 2; the movable support 3 is movably arranged on the shell 1 and can be hinged to the shell 1 through a first hinge shaft 32, and a counter-attack plate 31 for receiving the material knocked out by the hammer head 22 is provided on the side of the movable support 3 close to the hammer head 22; the adjusting mechanism 4 is arranged on the shell 1 and connected to the movable support 3, and is used to adjust the crushing gap size between the movable support 3 and the hammer head 22. The movable support 3 and one end thereof are provided with a movable mounting assembly 5 in cooperation with the adjusting mechanism 4, and the movable mounting assembly 5 is used to absorb the angular difference α generated by the movable support 3 and the adjusting mechanism 4 when the movable support 3 rotates around the hinge. When the movable support 3 rotates around the hinge, the connection with the adjustment mechanism 4 will also rotate to produce an angle difference (i.e., the angle difference α). The movable mounting assembly 5 absorbs the angle difference α so that the adjustment mechanism 4 can adjust the movable support 3 to rotate around the hinge to adjust the above-mentioned crushing gap. After a period of use, the hammer head 22 and the counter-attack plate 31 wear, so that the crushing gap between the counter-attack plate 31 and the hammer head 22 becomes larger, resulting in poor crushing effect. The movable support 3 is adjusted by the adjustment mechanism 4 so that the counter-attack plate 31 reduces the crushing gap with the hammer head 22 to improve the crushing effect.

[0065] Preferably, if Figure 4 As shown, each group of movable supports 3 is provided with two adjustment mechanisms 4 , that is, two adjustment mechanisms 4 form a group and jointly adjust one movable support 3 .

[0066] Based on the cooperation between the movable support 3 and the adjustment mechanism 4, a movable installation component 5 is provided. Figure 3-7 As shown, the movable mounting assembly 5 includes a mounting plate 51 disposed on the movable support 3 and a connecting shaft 52 disposed on the adjusting mechanism 4. The mounting plate 51 and the connecting shaft 52 are respectively provided with a mounting slot 511 and a connecting slot 521 located at the mounting slot 511. The width of the connecting slot 521 is greater than the thickness of the mounting plate 51. The connecting slot 521 is preferably an annular groove (not limited to a circular groove) disposed around the connecting shaft 52, or it can be a groove disposed on one side or both sides of the cross section of the connecting shaft 52. The connecting shaft 52 and the mounting plate 51 are mutually engaged through the connecting slot 521 and the mounting slot 511. The width of the connecting slot 521 is greater than the thickness of the mounting plate 51, so that a movable gap is provided between the connecting slot 521 and the mounting plate 51, so that the movable support 3 and the adjusting mechanism 4 can be movably connected, so that the movable support 3 can rotate in the connecting slot 521 when rotating around the hinge, so as to absorb the angular difference α. Figure 7 The dotted line in Figure 6 Schematic diagram of the position of the mounting plate 51.

[0067] Based on the mounting plate 51, a mounting slot 511 is provided. Figure 3-4 As shown, one end of the mounting slot 511 extends out of the edge of the mounting plate 51. The connecting slot 521 of the connecting shaft 52 can be inserted into the mounting slot 511 from the edge of the mounting plate 51, which is convenient for installing the connecting shaft 52, and there is no need to set the two parts of the connecting shaft 52 at both ends of the connecting slot 521 as split type.

[0068] Based on the cooperation between the movable support 3 and the adjustment mechanism 4, a movable installation component 5 is provided. Figure 8 As shown, the connecting slot 521 is in a wedge shape, and one end of the connecting slot 521 close to the hinge of the movable support 3 (the upper end shown in the figure) is clamped with the mounting plate 51, and the other end leaves a movable space for the mounting plate 51 in the connecting slot 521 when the movable support 3 rotates around the hinge, and the movable space is used to absorb the angular difference α; when the movable support 3 rotates around the first hinge shaft 32, the mounting plate 51 is clamped at the upper end of the wedge-shaped connecting slot 521, and the lower end of the mounting plate 51 located at the clamping point rotates in the connecting slot 521 with the rotation of the movable support 3 (equivalent to rotation around the clamping point), thereby absorbing the angular difference α; the cross-section of the connecting shaft 52 is not limited to a circle, and can be a polygonal structure such as a rectangle; by clamping the mounting plate 51 at the upper end of the connecting slot 521 and allowing the mounting plate 51 to rotate around the clamping point, the movable support 3 can be fixed when it is rotated around the first hinge shaft 32 to a suitable crushing gap size.

[0069] In a preferred embodiment, Figure 8 As shown, the mounting plate 51 moves in the connecting slot 521 until the crushing gap between the hammer head 2 and the counter-attack plate 31 is at an end value and is in surface contact with the slot wall of the connecting slot 521; when the crushing gap is at a maximum value and / or a minimum value, the mounting plate 51 is in surface contact with the slot wall of the connecting slot 521.

[0070] Preferably, if Figure 8 As shown, one end of the connection slot 521 that is engaged with the mounting plate 51 is a chamfered structure. More preferably, the chamfered structure is an arc-shaped chamfer.

[0071] Based on the connection slot 521 being provided on the connection shaft 52, Fig. 9As shown, the connecting shaft 52 is hinged with clamping plates 522 for clamping the mounting plate 51 on both sides of the connecting slot 521. After the two clamping plates 522 clamp the mounting plate 51, they can rotate in the connecting slot 521 around the hinge with the connecting shaft 52 when the movable support 3 rotates, and the rotation angle range is limited by the side walls of the connecting slot 521. Preferably, the clamping plate 522 is in surface contact with the side wall of the connecting slot 521 to limit its rotation angle; the clamping plate 522 can be made of wear-resistant material; the two clamping plates 522 are inserted into the connecting slot 521, and when the adjustment mechanism 3 drives the movable support 3 to rotate around the hinge (the first hinge axis 32), the two clamping plates 522 clamp the mounting plate 51 in the connecting slot 521 to rotate and absorb the rotation angle difference α, and when the side wall of the connecting slot 521 is abutted and limited, the crushing gap range between the adjusting hammer head 22 and the counterattack plate 31 can be limited to avoid the interference between the hammer head 22 and the counterattack plate 31 due to the small crushing gap, and avoid the poor crushing effect due to the large crushing gap; when the mounting plate 51 is linearly clamped in the connecting slot 521, the stress on the clamping point A is relatively large (such as Figure 8 As shown in the figure, it is troublesome to replace the mounting plate 51 when it is worn out; by hingedly connecting the two clamping plates 522 on the connecting shaft 52, the linear contact of the connecting slot 521 and the mounting plate 51 can be changed to surface contact, thereby expanding the contact area; the support for the mounting plate 51 is provided by the second hinged shaft 523 hingedly connecting the clamping plate 522 and the connecting shaft 52, thereby reducing the wear of the mounting plate 51 and the connecting shaft 52, increasing the service life, and facilitating the maintenance of the clamping plate 522.

[0072] Preferably, one end of the two clamping plates 522 facing each other is an arc-shaped chamfered structure, which facilitates the installation plate 51 to be inserted into the two clamping plates 522. More preferably, the clamping plate 522 is provided with a first slot for being inserted into the connecting slot 521 to avoid the connecting shaft 52 being located at a section of the connecting slot 521.

[0073] In certain embodiments, such as Figure 5As shown, the adjusting mechanism 4 is axially adjustable and arranged on the housing 1; the adjusting mechanism 4 includes a screw 42 threadedly connected to the housing 1 and a screwing member 41 fixed at one end of the screw 42; the other end of the screw 42 is connected to the movable support 3 through a movable mounting assembly 5. The axial movement distance of the adjusting mechanism 4 is approximately the change in the crushing gap between the hammer head 22 and the counter-attack plate 31, which is convenient for intuitively understanding and adjusting the gap size. The screwing member 41 can adopt an adjusting wheel to facilitate manual operation to adjust the rotation of the screw 42; the connecting shaft 52 can be fixedly connected to the screw 42 as a whole, and preferably the connecting shaft 52 is rotatably connected to the screw 42, that is, when the screw 42 rotates, one end of the connecting shaft 52 is clamped with the mounting plate 51 and rotates relative to the screw 42. When used specifically, a fixed support 43 is provided on the housing 1, and a threaded hole is provided on the fixed support 43, and the screw 42 is threadedly connected in the threaded hole to realize axial movement. The adjusting mechanism 4 has a simple structure. The screw 42 is driven to rotate by the screw member 41. The screw 42 moves relatively on the housing 1 and drives the connecting shaft 52 to move axially, thereby driving the movable support 3 to rotate around the hinge, thereby adjusting the size of the crushing gap.

[0074] Based on the axially adjustable adjustment mechanism 4 arranged on the housing 1, as Figure 10-11 As shown, the adjustment mechanism 4 also includes a fixed support 43 and a plurality of plug-in pads 44 provided with a second slot. The fixed support 43 is fixed on the shell and is provided with a threaded hole. The plurality of plug-in pads 44 include thicknesses of various specifications and can be plugged into the connecting shaft 52 between the mounting plate 51 and the fixed support 43. The two outermost plug-in pads 44 at both ends are respectively tightened against the mounting plate 51 and the fixed support 43 to fix the mounting plate 51 to the fixed support 43.

[0075] In a preferred embodiment, Figure 3 As shown, the counter-attack board 31 includes a plurality of hammer heads 22, and the plurality of hammer heads 22 are arranged in an arc shape on the movable support 3. Preferably, the movable support 3 is provided with a stepped mounting position, and the plurality of rows of mounting positions are arranged in an arc shape, and a plurality of hammer heads 22 are fixedly installed on each row of mounting positions, and the plurality of hammer heads 22 are fixedly installed on the mounting positions to form a sawtooth structure in the direction of the steps, that is, the edges of the hammer heads 22 protrude to form sawtooth, thereby improving the crushing effect of the counter-attack board 31. The counter-attack board 31 uses a plurality of hammer heads 22, and the old hammer heads 22 can be used as the counter-attack board 31, saving resources; the plurality of hammer heads 22 are arranged in an arc shape on the movable support 3, so that the materials are taken away by the hammer heads 22 on the rotor hammer seat 2 for repeated crushing.

[0076] In a preferred embodiment, Figure 1 and Figure 3As shown, two groups of movable supports 3 and adjustment mechanisms 4 are provided, and the two groups of movable supports 3 are arranged on the shell 1 along the direction of the material, and the impact plates 31 of the two groups of movable supports 3 are arranged in an arc structure. Since the wear degree of the impact plate 31 and the downstream part is different, two groups of adjustment mechanisms 4 are provided to respectively adjust the size of the crushing gap between the two groups of movable supports 3 and the hammer head 22, which can solve the problem of poor crushing effect caused by different wear degrees.

[0077] In a preferred embodiment, Figure 1 As shown, a plurality of mounting hammer plates 21 are fixedly provided on the rotor hammer seat 2 at intervals in the circumferential direction, and hammer heads 22 are provided on the mounting hammer plates 21. Multiple hammer heads 22 can be installed on each mounting hammer plate 21 to improve the crushing effect.

[0078] In a preferred embodiment, Figure 1-2 As shown, the driving mechanism 6 is also included, and the driving mechanism 6 is connected to the rotor hammer seat 2 for driving the rotor hammer seat 2 to rotate. The driving mechanism 6 is preferably a motor, and the output shaft of the motor is connected to the rotor hammer seat 2 through a transmission belt, that is, the transmission belt surrounds the motor output shaft and the rotating shaft of the rotor hammer seat 2 to drive the rotor hammer seat 2 to rotate.

[0079] In a preferred embodiment, Figure 1 As shown, the housing 1 is provided with an auxiliary clapping plate 7, which is located above the rotor hammer seat 2 and upstream of the movable support 3 (between the feed inlet 11 and the movable support 3), and plays a role in assisting in crushing the material. Preferably, the auxiliary clapping plate 7 is provided with thorns to increase the crushing effect.

[0080] In actual use, the old hammer head 22 can be installed on the movable support 3 as the counter-attack plate 31, and it is arranged in an arc shape; the driving mechanism 6 drives the rotor hammer seat 2 to rotate at a high speed. When the block material enters through the feed port 11, the hammer head 22 on the rotor hammer seat 2 hits the block material to the counter-attack plate 31 to crush the material, and the rotor hammer seat 2 is rotated to achieve repeated hitting on the counter-attack plate 31. After the hammer head 22 on the rotor hammer seat 2 is worn, it can be removed and used on the movable support 3 as the counter-attack plate 31. When the counter-attack plate 31 is further worn, resulting in an increase in the crushing gap between the hammer head 22 on the rotor hammer seat 2 and the counter-attack plate 31, the screw part 41 is rotated, and the screw 42 follows the rotation to drive the movable support 3 to rotate around the hinge, thereby reducing the above-mentioned crushing gap and improving the crushing effect.

[0081] Another aspect of the present invention further provides a method for adjusting the crushing gap of a crusher. Using the hammer crusher provided by the present invention, the adjustment method comprises:

[0082] S1. The mounting slot 511 of the mounting plate 51 is clamped into the connecting slot 521 of the connecting shaft 52, so that the mounting plate 51 can move in the connecting slot 521 when the movable support 3 rotates around the hinge, and the maximum range of movement is limited by the groove wall of the connecting slot 521;

[0083] S2. Operate the adjusting mechanism 4 to move the connecting shaft 52, thereby driving the mounting plate 51 located in the connecting slot 521 to move, so that the movable support 3 rotates around the hinge to adjust the size of the crushing gap with the hammer head 22.

[0084] According to a method for adjusting the crushing gap of a crusher provided by the present invention, in step S1, the step of clamping the mounting slot 511 of the mounting plate 51 into the connecting slot 521 of the connecting shaft 52 comprises:

[0085] S11, insert the installation plate 51 into the connection slot 521 with a wedge-shaped structure, and clamp one end of the connection slot 521, so that the installation plate 51 can rotate around the clamping point when the movable support 3 rotates around the hinge point.

[0086] According to a method for adjusting the crushing gap of a crusher provided by the present invention, in step S1, the step of clamping the mounting slot 511 of the mounting plate 51 into the connecting slot 521 of the connecting shaft 52 comprises:

[0087] S12, insert the mounting plate 51 into the connecting slot 521 and clamp it by the clamping plates 522 hinged on both sides of the connecting slot 521, so that when the connecting shaft 52 moves, the mounting plate 51 rotates around the hinge of the clamping plates 522 in the two clamping plates 522.

[0088] According to a method for adjusting the crushing gap of a crusher provided by the present invention, in step S2, the operation of the adjustment mechanism 4 to move the connecting shaft 52 includes:

[0089] S21, rotating the screw member drives the screw to rotate, so that the screw moves axially and drives the connecting shaft 52 to move axially, thereby driving the mounting plate 51 located in the connecting slot 521 to move, so that the movable support 3 rotates around the hinge to adjust the crushing gap size between the hammer head 22 and the counter-attack plate 31.

[0090] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hammer crusher, characterized in that: include, A shell (1), wherein the shell (1) is provided with a feed inlet (11) and a discharge outlet (12); A rotor hammer seat (2), the rotor hammer seat (2) being rotatably disposed in the housing (1), and a plurality of hammer heads (22) being disposed on the rotor hammer seat (2); A movable support (3), the movable support (3) being hingedly mounted on the housing (1), and a counter-attack plate (31) for receiving materials knocked out by the hammer head (22) is provided on a side of the movable support (3) close to the hammer head (22); An adjusting mechanism (4) is arranged on the housing (1) and is used to adjust the size of the crushing gap between the movable support (3) and the hammer head (22). The adjusting mechanism (4) and the movable support (3) are provided with a movable mounting assembly (5) in cooperation with each other. The movable mounting assembly (5) is used to absorb the angular difference between the movable support (3) and the adjusting mechanism (4) when the movable support (3) rotates around the hinge.

2. A hammer crusher according to claim 2, characterized in that: The movable mounting assembly (5) comprises a mounting plate (51) arranged on the movable support (3) and a connecting shaft (52) arranged on the adjusting mechanism (4); the mounting plate (51) and the connecting shaft (52) are respectively provided with a mounting slot (511) and a connecting slot (521) located on the mounting slot (511); and a movable gap is provided between the connecting slot (521) and the mounting plate (51).

3. A hammer crusher according to claim 2, characterized in that: One end of the installation slot (511) extends out of the edge of the installation plate (51).

4. A hammer crusher according to claim 2, characterized in that: The connecting slot (521) is in a wedge shape, with one end of the connecting slot (521) close to the hinge of the movable support (3) being clamped with the mounting plate (51), and the other end leaving a movable space for the mounting plate (51) to move within the connecting slot (521) when the movable support (3) rotates around the hinge.

5. A hammer crusher according to claim 4, characterized in that: One end of the connecting slot (521) that is clamped to the mounting plate (51) is a chamfered structure; the chamfered structure comprises an arc-shaped chamfer.

6. A hammer crusher according to claim 4, characterized in that: Clamps (522) for clamping the mounting plate (51) are hingedly connected on both sides of the connecting slot (521) on the connecting shaft (52). After the two clamps (522) clamp the mounting plate (521), they can rotate around the hinge in the connecting slot (521) when the movable support (3) rotates, and the rotation angle range is limited by the side wall of the connecting slot (521).

7. A hammer crusher according to any one of claims 1 to 6, characterized in that: The adjusting mechanism (4) is axially adjustable and arranged on the housing (1); the adjusting mechanism (4) comprises a screw rod (42) threadedly connected to the housing (1) and a screw member (41) fixedly arranged at one end of the screw rod (42); the other end of the screw rod (42) is connected to the movable support (3) via a movable mounting assembly (5).

8. A hammer crusher according to claim 1, characterized in that: The counter-attack clapper (31) comprises a plurality of hammer heads (22), which are arranged in an arc shape on the movable support (3); the movable support (3) is provided with a plurality of rows of step-shaped mounting positions, each row of mounting positions is provided with a plurality of hammer heads (22), and the plurality of hammer heads (22) are fixedly mounted on the mounting positions to form a sawtooth structure in the direction of the steps.

9. A hammer crusher according to claim 1, characterized in that: The movable supports (3) and the adjustment mechanisms (4) are each provided in two groups, and the counter-attack plates (31) of the two groups of movable supports (3) are arranged in an arc-shaped structure.

10. A method for adjusting the crushing gap of a crusher, characterized in that: Using the hammer crusher as described in any one of claims 2 to 9, the adjustment method includes: The mounting slot (511) of the mounting plate (51) is clamped in the connecting slot (521) of the connecting shaft (52), so that the mounting plate (51) can move in the connecting slot (521) when the movable support (3) rotates around the hinge, and the maximum range of movement is limited by the groove wall of the connecting slot (521); The operating adjustment mechanism (4) moves the connecting shaft (52), driving the mounting plate (51) located in the connecting slot (521) to move, so that the movable support (3) rotates around the hinge to adjust the size of the crushing gap with the hammer head (22).

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