Hammer crusher capable of adjusting granularity of coal mine

Abstract

The utility model relates to the technical field of coal mine crushing, and particularly provides a hammer crusher capable of adjusting coal mine granularity, which comprises a shell, wherein the shell is provided with a material inlet and a material outlet; the crushing hammer is rotationally mounted in the crushing cavity of the shell; the lifting mechanism is rotationally connected with a rotating shaft of the breaking hammer and used for lifting the breaking hammer; the driving mechanism is connected with the breaking hammer and used for driving the breaking hammer to rotate; the distance changing mechanism is arranged at the discharging opening and used for changing the distance of the discharging opening; wherein the distance changing mechanism is located below the breaking hammer, and the distance changing mechanism can increase the distance along with ascending of the lifting mechanism and decrease the distance along with descending of the lifting mechanism. The hammer type coal mine crusher effectively solves the problem that some hammer type coal mine crushers in the prior art do not adjust the granularity of crushed coal briquettes.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine crushing, and specifically provides a hammer crusher capable of adjusting the particle size of coal mines. Background Art

[0002] Some of the existing hammer coal crushers cannot adjust the particle size of the crushed coal blocks. Although some can be adjusted, their mechanical structures are complex and prone to mechanical failure. Therefore, it is urgent to design a hammer crushing device with a simple mechanical structure and the ability to adjust the size of the coal blocks. Utility Model Content

[0003] The utility model provides a hammer crusher capable of adjusting the particle size of coal, solving the problem in the prior art that some hammer crushers for coal cannot adjust the particle size of crushed coal blocks.

[0004] The utility model provides a hammer crusher capable of adjusting the particle size of coal mines, comprising:

[0005] A shell having an inlet and an outlet;

[0006] a breaker hammer rotatably mounted in the crushing chamber of the shell;

[0007] A lifting mechanism, rotatably connected to the rotating shaft of the breaker hammer, for lifting and lowering the breaker hammer;

[0008] A driving mechanism, connected to the breaker hammer, for driving the breaker hammer to rotate;

[0009] A pitch-changing mechanism, provided at the discharge port, for changing the distance between the discharge ports;

[0010] The pitch-changing mechanism is located below the breaker hammer, and the pitch-changing mechanism can increase the distance as the lifting mechanism rises, and reduce the distance as the lifting mechanism falls.

[0011] According to the hammer crusher provided by the utility model, the pitch-changing mechanism includes:

[0012] A pull rod, one end of which is connected to the lifting mechanism or the rotating shaft of the breaker hammer;

[0013] a first connecting rod, one end of which is hinged to the other end of the pull rod;

[0014] a crossbar hinged to the other end of the first connecting rod;

[0015] There are multiple opening plates, which are arranged in parallel and in sequence. The opening plates are rotatably installed on the shell and are located at the discharge port to cover the discharge port. A second connecting rod is fixedly installed on the rotating shaft of the opening plate, and the second connecting rod is hinged to the cross bar.

[0016] According to the hammer crusher provided by the utility model, the pitch-changing mechanism includes:

[0017] A push rod is slidably mounted on the housing along the lifting direction of the lifting mechanism;

[0018] a first wedge-shaped block fixed to the mandrel;

[0019] A second wedge-shaped block is slidably mounted on the housing along a sliding direction perpendicular to the sliding direction of the push rod, wherein the inclined surface of the second wedge-shaped block and the inclined surface of the first wedge-shaped block are slidably engaged with each other;

[0020] a toggle member, one end of which is connected to the second wedge-shaped block;

[0021] an elastic mechanism, disposed on the housing and connected to the toggle member and / or the second wedge-shaped block, for providing a force for the second wedge-shaped block to move toward the first wedge-shaped block;

[0022] An opening and closing plate is slidably mounted on the discharge port along the sliding direction of the toggle member and can close the discharge port in a closed state; the opening and closing plate is connected to the toggle member.

[0023] According to the hammer crusher provided by the utility model, the lifting mechanism is arranged outside the shell;

[0024] The outer wall of the shell is provided with a strip-shaped through hole along the lifting direction;

[0025] The rotating shaft of the breaker hammer passes through the strip-shaped through hole and extends to the outside of the housing. The rotating shaft of the breaker hammer is mounted on the lifting mechanism and is rotatably connected to the lifting mechanism.

[0026] The strip-shaped through hole is covered with a superimposed plate assembly, which is slidably connected to the shell; the rotating shaft of the breaker hammer passes through the superimposed plate assembly, and during the up and down movement of the breaker hammer, the superimposed plate assembly always covers the strip-shaped through hole, so that the strip-shaped through hole is in a closed state.

[0027] According to the hammer crusher provided by the utility model, the driving mechanism includes:

[0028] A driving motor is coaxially mounted with a driving wheel;

[0029] A driven wheel is coaxially mounted with the rotating shaft of the breaker and is connected to the driving wheel by a belt transmission;

[0030] A first push rod is slidably mounted on the housing along the lifting direction of the lifting mechanism, and one end of the first push rod is rotatably connected to the rotating shaft of the breaker hammer and / or the lifting mechanism;

[0031] a second push rod, one end of which is hinged to the first push rod and the other end of which is provided with a first tensioning wheel;

[0032] The positioning pin is provided on the housing and is slidably connected to the second push rod along the length direction of the rod body.

[0033] According to the hammer crusher provided by the utility model, the shell includes a crushing part and a feeding part, each having a crushing cavity and a feeding cavity;

[0034] The feeding part is connected to the crushing part, and the crushing chamber and the feeding chamber are connected; a straight line of the feeding chamber along the feeding direction and a straight line of the crushing chamber along the lifting direction of the lifting mechanism have an angle, and the angle range is 30°-45°.

[0035] According to the hammer crusher provided by the utility model, the lifting mechanism is an electric hydraulic cylinder.

[0036] According to the hammer crusher provided by the utility model, a toggle roller is rotatably mounted on the shell near the feed port, and the toggle roller is drivingly connected to the driving mechanism.

[0037] The hammer crusher provided by the utility model improves the traditional hammer crusher into a hammer crusher capable of adjusting the crushing particle size, effectively solving the problem that some hammer coal crushers in the prior art do not have the function of adjusting the particle size of the crushed coal blocks. The mechanical structure is simple and practical, and the failure rate is low.

[0038] By setting a lifting mechanism on the crusher and connecting the breaker hammer to the lifting mechanism, the breaker hammer can be lifted and lowered, thereby achieving secondary crushing of the coal blocks that have not been discharged from the crushing chamber until they can pass through the discharge port; that is, when the breaker hammer is lifted, the coal particles discharged are large, and when the breaker hammer is lowered, the coal particles discharged are small;

[0039] Furthermore, by setting the variable pitch mechanism at the discharge port, the coal particle size screening can be achieved, that is, the larger the spacing of the variable pitch mechanism, the larger the coal particle size that can be discharged, and the smaller the spacing of the variable pitch mechanism, the smaller the coal particle size that can be discharged. If the particle size of the coal block after the initial crushing is large, it cannot pass through the variable pitch mechanism and will be crushed for the second time by the breaker hammer until its diameter reaches a size smaller than the discharge spacing of the variable pitch mechanism.

[0040] Furthermore, by arranging the pitch-changing mechanism to increase the spacing as the lifting mechanism is raised and decrease the spacing as the lifting mechanism is lowered, the pitch-changing mechanism and the lifting mechanism can be linked to improve working efficiency.

[0041] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0043] Figure 1 This is a schematic diagram of the three-dimensional structure of the hammer crusher capable of adjusting the coal mine particle size provided by the utility model from the first perspective;

[0044] Figure 2 This is a schematic diagram of the three-dimensional structure of the hammer crusher provided by the utility model from a second viewing angle;

[0045] Figure 3 This is a schematic diagram of the obliquely cut three-dimensional structure of the hammer crusher provided by the utility model;

[0046] Figure 4 This is a schematic diagram of the installation position of the pitch-changing mechanism of the hammer crusher provided by the utility model;

[0047] Figure 5 yes Figure 4 A magnified schematic diagram of the three-dimensional structure;

[0048] Figure 6 This is one of the three-dimensional structural diagrams of the second pitch-changing mechanism of the hammer crusher provided by the utility model;

[0049] Figure 7 This is the second schematic diagram of the three-dimensional structure of the second pitch-changing mechanism of the hammer crusher provided by the present invention;

[0050] Figure 8 This is a schematic diagram of the installation position of the composite plate assembly of the hammer crusher provided by the utility model;

[0051] Figure 9 This is a schematic diagram of the three-dimensional structure of the composite plate assembly provided by the utility model;

[0052] Figure 10 This is a schematic diagram of the three-dimensional structure of the driving mechanism provided by the utility model;

[0053] Figure 11 This is a schematic diagram of the installation positions of the first push rod and the second push rod in the drive mechanism provided by the utility model;

[0054] Figure 12This utility model provides a schematic planar cross-sectional view of a hammer crusher;

[0055] Figure 13 This is a schematic diagram of the installation position of the toggle roller provided by the utility model;

[0056] Reference numerals:

[0057] 1. Housing; 101. Feeding port; 102. Discharging port; 103. Crushing chamber; 104. Strip-shaped through hole; 105. Composite plate assembly; 106. Crushing part; 103. Crushing chamber; 107. Feeding part; 1071. Feeding chamber; 2. Breaker; 201. Rotating shaft; 3. Lifting mechanism; 4. Driving mechanism; 401. Driving motor; 402. Driving wheel; 403. Driven wheel; 404. First push rod; 405, second push rod; 406, first tensioning wheel; 407, positioning pin; 5, pitch changing mechanism; 501, pull rod; 502, first connecting rod; 503, cross bar; 504, opening plate; 5041, second connecting rod; 505, push rod; 506, first wedge block; 507, second wedge block; 508, toggle member; 509, elastic mechanism; 510, opening and closing plate; 6, toggle roller. DETAILED DESCRIPTION

[0058] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0059] In the description of the embodiments of the present invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the embodiments of the present invention and to simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0060] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0061] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic expressions of the above terms do not refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0063] The following combination Figures 1 to 13 The embodiment shown describes the technical solution of the utility model:

[0064] The present invention provides a hammer crusher capable of adjusting the particle size of coal mines. Figures 1 to 3 As shown, it includes: a housing 1, a breaker 2, a lifting mechanism 3, a driving mechanism 4 and a pitch-changing mechanism 5;

[0065] The housing 1 has an inlet 101 and a discharge port 102; the breaker 2 is rotatably mounted in a crushing chamber 103 of the housing 1; the lifting mechanism 3 is rotatably connected to the rotating shaft 201 of the breaker 2 for lifting and lowering the breaker 2; the driving mechanism 4 is connected to the breaker 2 for driving the breaker 2 to rotate; the pitch-changing mechanism 5 is provided at the discharge port 102 for changing the pitch of the discharge ports 102;

[0066] The pitch-changing mechanism 5 is located below the breaker hammer 2 , and the pitch-changing mechanism 5 can increase the distance as the lifting mechanism 3 rises, and reduce the distance as the lifting mechanism 3 falls.

[0067] In some embodiments, the lifting mechanism 3 can be a combination of a hydraulic pump or a hydraulic cylinder driving a telescopic rod, or a combination of an AC motor or a servo motor and a gear set, which can be connected to the rotating shaft 201 of the breaker hammer 2 and drive the breaker hammer 2 to move up and down; similarly, the driving mechanism 4 can be composed of an AC motor or a servo motor and the rotating shaft 201 of the breaker hammer 2 through a gear set or a chain set, which can drive the breaker hammer 2 to rotate;

[0068] In this embodiment, a breaker hammer 2 is provided in the shell 1, and the driving mechanism 4 is connected to the breaker hammer 2, driving the breaker hammer 2 to rotate, and the coal blocks placed in the crushing chamber 103 from the feed port 101 are rotated and crushed, so that the coal blocks are crushed to the distance that can just pass through the distance between the variable pitch mechanisms 5. By adjusting the distance between the variable pitch mechanisms 5, coal blocks of the required size are allowed to pass through the discharge port 102, and coal blocks that do not meet the requirements continue to remain in the crushing chamber 103, and are continuously impacted, ground and crushed by the breaker hammer 2 until the size of the coal blocks can pass through the variable pitch mechanism 5; when coal blocks of different sizes are needed, the lifting mechanism 3 is adjusted to rise or fall, thereby changing the distance size of the variable pitch mechanism 5, thereby changing the size of the coal blocks allowed to pass through the variable pitch mechanism 5, thereby realizing the adjustment of the coal ore particle size.

[0069] The hammer crusher provided by the embodiment of the utility model improves the traditional hammer crusher into a hammer crusher capable of adjusting the crushing particle size, effectively solving the problem that some hammer coal crushers in the prior art do not have the function of adjusting the particle size of the crushed coal blocks. The mechanical structure is simple and practical, and the failure rate is low. Specifically:

[0070] By arranging a lifting mechanism 3 on the crusher and connecting the breaker hammer 2 to the lifting mechanism 3, the breaker hammer 2 can be lifted and lowered, thereby achieving secondary crushing of the coal blocks that have not been discharged from the crushing chamber 103 until they can pass through the discharge port 102; that is, when the breaker hammer 2 is lifted, the coal particles discharged are large, and when the breaker hammer 2 is lowered, the coal particles discharged are small.

[0071] Furthermore, by setting the variable pitch mechanism 5 at the discharge port 102, the particle size of the coal can be screened, that is, the larger the spacing of the variable pitch mechanism 5, the larger the particle size of the coal that can be discharged, and the smaller the spacing of the variable pitch mechanism 5, the smaller the particle size of the coal that can be discharged. If the particle size of the coal block after the initial crushing is large, it cannot pass through the variable pitch mechanism 5 and will be crushed for the second time by the breaker 2 until its diameter reaches a discharge spacing smaller than the variable pitch mechanism 5.

[0072] Furthermore, by arranging the pitch-changing mechanism 5 to increase the spacing as the lifting mechanism 3 is raised and decrease the spacing as the lifting mechanism 3 is lowered, the pitch-changing mechanism 5 can be linked with the lifting mechanism 3 to improve working efficiency.

[0073] According to an embodiment of the present invention, a hammer crusher is provided, such as Figures 3 to 5 As shown, the first pitch-changing mechanism 5 includes: a pull rod 501, a first connecting rod 502, a cross bar 503 and an opening plate 504;

[0074] One end of the pull rod 501 is connected to the lifting mechanism 3 or the rotating shaft 201 of the breaker hammer 2;

[0075] One end of the first connecting rod 502 is hinged to the other end of the pull rod 501; the cross bar 503 is hinged to the other end of the first connecting rod 502; there are multiple opening plates 504, which are arranged in parallel and arranged in sequence. The opening plates 504 are rotatably installed on the shell 1 and are located at the discharge port 102 to cover the discharge port 102; the second connecting rod 5041 is fixedly installed on the rotating shaft of the opening plate 504, and the second connecting rod 5041 is hinged to the cross bar 503 respectively.

[0076] In some embodiments, the pull rod 501 is sleeved on the telescopic portion of the lifting mechanism 3, or connected to the rotating shaft 201 of the breaker hammer 2, so as to enable the first connecting rod 502 to move up and down;

[0077] In this embodiment, the pull rod 501 is connected to the rotating shaft 201 of the breaker hammer 2, and the rotating shaft 201 of the breaker hammer 2 is connected to the lifting mechanism 3, so the pull rod 501 can move up and down with the lifting mechanism 3, and at the same time, the pull rod 501 is hinged to one end of the first connecting rod 502, so the first connecting rod 502 moves up and down with the pull rod 501, and one end of the first connecting rod 502 is hinged to a cross bar 503, and a plurality of opening plates 504 are rotatably installed on the cross bar 503, and at the same time, a second connecting rod 5041 is fixed to the rotating shaft of the opening plate 504. As the first connecting rod 502 moves up and down, the cross bar 503 also swings up and down, driving the opening plates 504 on the cross bar 503 to swing, so that the spacing between the opening plates 504 changes accordingly, thereby changing the size of the coal blocks passing through the discharge port 102.

[0078] According to an embodiment of the present invention, a hammer crusher is provided, such as Figure 3 、 Figure 6 and Figure 7 As shown, the second pitch-changing mechanism 5 includes: a push rod 505, a first wedge block 506, a second wedge block 507, a toggle member 508, an elastic mechanism 509 and an opening and closing plate 510;

[0079] Among them, the push rod 505 is slidably mounted on the housing 1 along the lifting direction of the lifting mechanism 3; the first wedge block 506 is fixed to the push rod 505; the second wedge block 507 is slidably mounted on the housing 1 along the sliding direction perpendicular to the push rod 505, and the inclined surface of the second wedge block 507 and the inclined surface of the first wedge block 506 slide in cooperation with each other; one end of the toggle member 508 is connected to the second wedge block 507; the elastic mechanism 509 is provided on the housing 1 and is connected to the toggle member 508 and / or the second wedge block 507, for providing a force for the second wedge block 507 to move toward the first wedge block 506;

[0080] The opening and closing plate 510 is slidably installed on the discharge port 102 along the sliding direction of the toggle member 508 , and can close the discharge port 102 in the closed state; the opening and closing plate 510 is connected to the toggle member 508 .

[0081] In some embodiments, the elastic mechanism 509 may be an elastic element such as a metal spring or an air spring, so as to always exert force on the second wedge block 507 and the toggle member 508 to move toward the first wedge block 506 .

[0082] In this embodiment, the top rod 505 is movably mounted on the telescopic portion of the lifting mechanism 3 and can move up and down with the lifting mechanism 3. The first wedge block 506 is fixed to the top rod 505 and moves up and down synchronously with the top rod 505. The second wedge block 507 is installed on the surface of the shell 1 perpendicular to the sliding direction of the top rod 505. At the same time, one end of the second wedge block 507 is fixedly connected to a toggle member 508, and the lower end of the toggle member 508 is connected to an opening and closing plate 510. Either the toggle member 508 or the second wedge block 507 is provided with an elastic mechanism 509, or both are provided with an elastic mechanism 509. In this embodiment, the elastic mechanism 50 9 is preferably a metal spring and a telescopic rod. The metal spring is sleeved on the telescopic rod, which always gives the second wedge block 507 a force to move toward the first wedge block 506. When the push rod 505 drives the first wedge block 506 to move upward, the first wedge block 506 and the second wedge block 507 are squeezed to drive the toggle member 508 to move away from the first wedge block 506, so that the opening and closing plate 510 is opened, thereby allowing the coal blocks to pass through the discharge port 102. In actual use, the distance the first wedge block 506 moves upward is controlled, thereby changing the opening and closing distance between the opening and closing plate 510 and the baffle, thereby realizing the adjustment of the particle size of the coal blocks.

[0083] According to an embodiment of the present invention, a hammer crusher is provided, such as Figure 8 and Figure 9 As shown, the lifting mechanism 3 is arranged outside the housing 1;

[0084] The outer wall of the housing 1 is provided with a strip-shaped through hole 104 along the lifting direction;

[0085] The rotating shaft 201 of the breaker hammer 2 passes through the strip-shaped through hole 104 and extends to the outside of the housing 1. The rotating shaft 201 of the breaker hammer 2 is mounted on the lifting mechanism 3 and is rotatably connected to the lifting mechanism 3.

[0086] The strip-shaped through hole 104 is covered with a composite plate assembly 105, which is slidingly connected to the shell 1; the rotating shaft 201 of the breaker 2 passes through the composite plate assembly 105. During the up and down movement of the breaker 2, the composite plate assembly 105 always covers the strip-shaped through hole 104, so that the strip-shaped through hole 104 is in a closed state.

[0087] In this embodiment, a strip-shaped through hole 104 is provided on the outer wall of the shell 1 to provide a space for the rotating shaft 201 of the breaker 2 to move up and down synchronously with the lifting mechanism 3; at the same time, the strip-shaped through hole 104 is covered with a composite plate assembly 105, and a through hole is provided on the composite plate assembly 105 to ensure that the rotating shaft 201 can pass through the composite plate assembly 105 and drive the composite plate assembly 105 to move up and down. The composite plate assembly 105 (such as Figure 9 As shown in the figure, the stacking plate assembly 105 is composed of a plurality of I-shaped plates. When the stacking plate assembly 105 connected to the rotating shaft 201 rises or falls, the entire stacking plate assembly 105 also stretches and moves accordingly to ensure that it always covers the strip-shaped through hole 104, so that the coal blocks will not splash out of the strip-shaped through hole 104, thereby preventing waste of coal blocks or harm to users.

[0088] According to the embodiment of the present invention, a hammer feed part 107 and a crushing part 106 crusher are provided. Figure 10 and Figure 11 As shown, the driving mechanism 4 includes: a driving motor 401, a driving wheel 402, a driven wheel 403, a first push rod 404, a second push rod 405, a first tensioning wheel 406 and a positioning pin 407;

[0089] The driving motor 401 is coaxially mounted with a driving wheel 402;

[0090] The driven wheel 403 is coaxially mounted with the rotating shaft 201 of the breaker 2 and is connected to the driving wheel 402 by belt transmission;

[0091] The first push rod 404 is slidably mounted on the housing 1 along the lifting direction of the lifting mechanism 3, and one end of the first push rod 404 is rotatably connected to the rotating shaft 201 of the breaker 2 and / or the lifting mechanism 3;

[0092] One end of the second push rod 405 is hinged to the first push rod 404, and the other end is provided with a first tensioning wheel 406;

[0093] The positioning pin 407 is provided on the housing 1 and is slidably connected to the second push rod 405 along the length direction of the rod body.

[0094] In some embodiments, one end of the first push rod 404 may be rotatably connected to either the rotating shaft 201 or the lifting mechanism 3, or to both, to ensure that it can move up and down with either the lifting mechanism 3 or the rotating shaft 201.

[0095] In this embodiment, a driving wheel 402 installed on the driving motor 401 and a driven wheel 403 installed on the rotating shaft 201 of the breaker hammer 2 are connected by a belt, thereby providing a power source for the use of the breaker hammer 2. At the same time, in this embodiment, a first push rod 404 is rotatably connected to the rotating shaft 201 of the breaker hammer 2. The first push rod 404, a second push rod 405 hinged at one end thereof, and a first tensioning wheel 406 provided at the other end of the second push rod 405 are used in combination to ensure that when the rotating shaft 201 of the breaker hammer 2 moves up and down under the action of the lifting mechanism 3, the belt is always in a taut state, thereby ensuring the normal use of the driving mechanism 4.

[0096] According to an embodiment of the present invention, a hammer crusher is provided, such as Figure 11 As shown, the housing 1 includes a crushing portion 106 and a feeding portion 107 , each having a crushing cavity 103 and a feeding cavity 1071 ;

[0097] The crushing part 106 is connected to the feeding part 107, and the crushing chamber 103 and the feeding chamber 1071 are connected; the straight line of the feeding chamber 1071 along the feeding direction and the straight line of the crushing chamber 103 along the lifting direction of the lifting mechanism 3 have an angle, and the angle range is 30°-45°.

[0098] In this embodiment, the shell 1 is divided into a crushing part 106 and a feeding part 107, and has a crushing chamber 103 and a feeding chamber 1071 respectively, wherein the feeding direction straight line of the feeding chamber 1071 and the straight line of the crushing chamber 103 along the lifting direction of the lifting mechanism 3 have an angle α, and the angle α is 45°, ensuring that when the feeding part 107 feeds and the crushing part 106 crushes, the coal blocks will not splash due to the force of the breaker 2, thereby ensuring the normal use of the device and not causing harm to the users.

[0099] According to an embodiment of the present invention, a hammer crusher is provided, such as Figure 1 As shown, the lifting mechanism 3 is an electric hydraulic cylinder.

[0100] In this embodiment, the lifting mechanism 3 is preferably an electric hydraulic cylinder, which has high energy conversion efficiency and low energy consumption compared to electric cylinders, high long-term cost advantages, low maintenance costs, high-precision control, rigid stops, and simple installation.

[0101] According to an embodiment of the present invention, a hammer crusher is provided, such as Figure 12 and Figure 13As shown, a stirring roller 6 is rotatably mounted on the housing 1 near the feed port 101 , and the stirring roller 6 is drivingly connected to the driving mechanism 4 .

[0102] In this embodiment, a toggle roller 6 is rotatably installed on the shell 1 near the feed port 101, and a plurality of protrusions are provided on the roller body. The toggle roller 6 is connected to the driving mechanism 4 by a belt, or one end of the toggle roller 6 has a rotating gear, which is connected to the rotating gear by a combination of a motor and a belt; by setting the toggle roller 6, the protrusions on the roller body are utilized to slowly toggle the coal blocks entering from the feed port 101, so that the coal blocks can normally enter the crushing chamber 103 and will not block the feed chamber 1071, thereby ensuring the normal use of the device.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A hammer crusher capable of adjusting the particle size of coal, characterized in that: include: A shell having an inlet and an outlet; a breaker hammer rotatably mounted in the crushing chamber of the shell; A lifting mechanism, rotatably connected to the rotating shaft of the breaker hammer, for lifting and lowering the breaker hammer; A driving mechanism, connected to the breaker hammer, for driving the breaker hammer to rotate; A pitch-changing mechanism, provided at the discharge port, for changing the distance between the discharge ports; The pitch-changing mechanism is located below the breaker hammer, and the pitch-changing mechanism can increase the distance as the lifting mechanism rises, and reduce the distance as the lifting mechanism falls.

2. The hammer crusher according to claim 1, characterized in that The pitch-changing mechanism comprises: A pull rod, one end of which is connected to the lifting mechanism or the rotating shaft of the breaker hammer; a first connecting rod, one end of which is hinged to the other end of the pull rod; a crossbar hinged to the other end of the first connecting rod; There are multiple opening plates, which are arranged in parallel and in sequence. The opening plates are rotatably installed on the shell and are located at the discharge port to cover the discharge port. A second connecting rod is fixedly installed on the rotating shaft of the opening plate, and the second connecting rod is hinged to the cross bar.

3. The hammer crusher according to claim 1, characterized in that The pitch-changing mechanism comprises: A push rod is slidably mounted on the housing along the lifting direction of the lifting mechanism; a first wedge-shaped block fixed to the mandrel; A second wedge-shaped block is slidably mounted on the housing along a sliding direction perpendicular to the sliding direction of the push rod, wherein the inclined surface of the second wedge-shaped block and the inclined surface of the first wedge-shaped block are slidably engaged with each other; a toggle member, one end of which is connected to the second wedge-shaped block; an elastic mechanism, disposed on the housing and connected to the toggle member and / or the second wedge-shaped block, for providing a force for the second wedge-shaped block to move toward the first wedge-shaped block; An opening and closing plate is slidably mounted on the discharge port along the sliding direction of the toggle member and can close the discharge port in a closed state; the opening and closing plate is connected to the toggle member.

4. The hammer crusher according to claim 1, characterized in that The lifting mechanism is arranged outside the shell; The outer wall of the shell is provided with a strip-shaped through hole along the lifting direction; The rotating shaft of the breaker hammer passes through the strip-shaped through hole and extends to the outside of the housing. The rotating shaft of the breaker hammer is mounted on the lifting mechanism and is rotatably connected to the lifting mechanism. The strip-shaped through hole is covered with a superimposed plate assembly, which is slidably connected to the shell; the rotating shaft of the breaker hammer passes through the superimposed plate assembly, and during the up and down movement of the breaker hammer, the superimposed plate assembly always covers the strip-shaped through hole, so that the strip-shaped through hole is in a closed state.

5. The hammer crusher according to claim 4, characterized in that The driving mechanism comprises: A driving motor is coaxially mounted with a driving wheel; A driven wheel is coaxially mounted with the rotating shaft of the breaker and is connected to the driving wheel by a belt transmission; A first push rod is slidably mounted on the housing along the lifting direction of the lifting mechanism, and one end of the first push rod is rotatably connected to the rotating shaft of the breaker hammer and / or the lifting mechanism; a second push rod, one end of which is hinged to the first push rod and the other end of which is provided with a first tensioning wheel; The positioning pin is provided on the housing and is slidably connected to the second push rod along the length direction of the rod body.

6. The hammer crusher according to any one of claims 1 to 5, characterized in that: The shell comprises a crushing part and a feeding part, each having a crushing cavity and a feeding cavity; The feeding part is connected to the crushing part, and the crushing chamber and the feeding chamber are connected; a straight line of the feeding chamber along the feeding direction and a straight line of the crushing chamber along the lifting direction of the lifting mechanism have an angle, and the angle range is 30°-45°.

7. The hammer crusher according to any one of claims 1 to 5, characterized in that: The lifting mechanism is an electric hydraulic cylinder.

8. The hammer crusher according to any one of claims 1 to 5, characterized in that: A tossing roller is rotatably mounted on the shell near the feed port, and the tossing roller is drivingly connected to the driving mechanism.

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