A construction waste crushing device for construction engineering

Abstract

The present invention relates to the technical field of construction waste treatment, and particularly relates to a construction waste crushing device for construction projects, which comprises a crushing chamber, a crushing roller, a counterattack frame and a cycloidal pinwheel rotating mechanism. The crushing roller is movably inserted into the crushing chamber, and a plurality of cutter bodies are arranged on the circumferential side wall of the crushing roller. The cutter bodies are used for throwing the construction waste along the tangential direction of the crushing roller; the counterattack frame is inserted into the crushing chamber and is arranged in a C-shaped structure. The opening of the counterattack frame faces the crushing roller, and a plurality of counterattack liners are arranged on the inner arc surface of the counterattack frame facing the crushing roller. The counterattack liners are used for first receiving the construction waste thrown out by the cutter bodies and then counterattacking it; the cycloidal pinwheel rotating mechanism is used to drive the crushing roller to move in a cycloidal pinwheel rotation mode, so as to keep the distance between the crushing roller and the bottom end of the counterattack frame unchanged, so that only the construction waste meeting the particle size requirements can fall between the crushing roller and the bottom end of the counterattack frame, improving the crushing accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of construction waste treatment, and particularly to a construction waste crushing device for construction engineering. Background Art

[0002] Construction engineering refers to the engineering entity formed by the construction of various building houses and their ancillary facilities and the installation activities of the pipelines and equipment supporting them; during the construction process of construction engineering, due to calculation errors, excessive procurement, and poor construction technology and management, various construction wastes will be generated, such as engineering soil, waste slurry, engineering waste, demolition waste, and decoration waste. If these construction wastes are not treated in time, they will not only occupy land resources but also cause environmental pollution.

[0003] In the process of treating construction waste, it mainly includes steps such as sorting, crushing, and screening. Among them, when crushing construction waste, crushing equipment is needed. Common crushing equipment includes jaw crushers, cone crushers, impact crushers, and impact crushers, etc. Among them, the impact crusher is a kind of crushing equipment widely used in the industrial field, mainly used for medium and fine crushing operations. Its working principle is that the plate hammers on the high-speed rotating rotor generate impact force on the materials, so that the materials are repeatedly impacted and collided in the crushing cavity, thereby achieving the crushing effect.

[0004] In the related art, for example, Chinese Patent CN114082483B discloses a multi-stage fine crushing type construction waste crusher. When this multi-stage fine crushing type construction waste crusher is in use, when the construction waste put into the internal of the crushing bin contains spherical stones with a smooth outer surface, through the centrifugal force generated by the rotation of the crushing roller, the outer extension block can slide outwards along the receiving frame, so that the outer extension block can impact the concave structure on the surface of the spherical stone construction waste, so that the grasping force of the cutter body on the surface of the spherical stone construction waste can be significantly increased, so that the surface of the spherical stone construction waste is no longer smooth, so that the spherical stone construction waste can be easily crushed by the cooperation of the crushing roller and the first-stage impact plate, and then is guided down to the second-stage impact plate for fine crushing treatment.

[0005] Although the above multi-stage fine crushing type construction waste crusher can improve the crushing effect of construction waste to a certain extent, it is found in the actual use process that since the distance between the roller body of the crushing roller and the second-stage impact plate is greater than the distance between the cutter body and the second-stage impact plate, when the cutter body crosses the second-stage impact plate, the construction waste between the roller body of the crushing roller and the second-stage impact plate will directly fall, and the directly fallen construction waste contains construction waste with larger particle sizes, which affects the crushing accuracy, and this part of the construction waste needs to be crushed again, resulting in a lower crushing efficiency. Summary of the Invention

[0006] Based on this, it is necessary to provide a construction waste crushing device for construction projects to address the problems of low crushing accuracy and low crushing efficiency existing in the current construction waste crushing process.

[0007] The above object is achieved through the following technical solutions:

[0008] A construction waste crushing device for construction projects, the construction waste crushing device for construction projects includes:

[0009] A crushing chamber;

[0010] A crushing roller, which is movably inserted into the crushing chamber, and a plurality of cutter bodies are arranged on the circumferential side wall of the crushing roller, and the cutter bodies are used to throw the construction waste along the tangential direction of the crushing roller;

[0011] A counterattack frame, which is inserted into the crushing chamber and is arranged in a C-shaped structure, the opening of the counterattack frame faces the crushing roller, and a plurality of counterattack liners are arranged on the inner arc surface of the counterattack frame facing the crushing roller, and the counterattack liners are used to first receive the construction waste thrown out by the cutter bodies and then counterattack it;

[0012] A cycloid pinwheel rotating mechanism, which is configured to drive the crushing roller to move in a cycloid pinwheel rotation mode so that the distance between the crushing roller and the bottom end of the counterattack frame remains unchanged.

[0013] Further, the cycloid pinwheel rotating mechanism includes a central shaft and a pin gear housing. The central shaft penetrates through the crushing chamber and can rotate self - sufficiently. The axis of the central shaft is parallel to the axis of the crushing roller. An eccentric wheel is eccentrically and fixedly sleeved on the central shaft. A cycloid wheel is fixedly sleeved on the eccentric wheel. The outer peripheral wall shape of the cycloid wheel is set as a wavy shape and has wave peaks and wave valleys with the same number as the number of the cutter bodies, and there is a wave valley between every two adjacent wave peaks, and the cutter bodies are correspondingly arranged with the wave valleys; the crushing roller is coaxially and fixedly arranged on the end surface of the cycloid wheel; the pin gear housing is fixedly arranged outside the crushing chamber and is coaxially arranged with the central shaft. A plurality of pin gear columns are inserted parallel to the inner axis of the pin gear housing, and the plurality of pin gear columns are arranged at equal intervals in the circumferential direction, and the pin gear columns are meshed with the cycloid wheel.

[0014] Further, the number of the eccentric wheels is two, the two eccentric wheels are arranged with a 180 - degree stagger, and each eccentric wheel is fixedly sleeved with the cycloid wheel.

[0015] Further, the bottom end of the inner arc surface of the counterattack frame is provided with wavy teeth.

[0016] Further, the cycloid pinwheel rotating mechanism further includes a driving assembly configured to provide a driving force for the central shaft to rotate self - sufficiently.

[0017] Further, the driving assembly includes a driving motor, a first transmission wheel, a second transmission wheel, and a transmission member. The first transmission wheel is fixedly sleeved on the motor shaft of the driving motor, the second transmission wheel is fixedly sleeved on the central shaft, and the transmission member is simultaneously connected between the first transmission wheel and the second transmission wheel for transmission.

[0018] Further, the construction waste crushing device for construction engineering further includes a support mechanism for supporting the crushing roller.

[0019] Further, the construction waste crushing device for construction engineering further includes an adjusting mechanism configured to adjust the opening orientation of the counter - attack frame.

[0020] Further, the adjusting mechanism includes a pull rod and a telescopic rod. The pull rod penetrates through the crushing chamber and is fixedly arranged on the counter - attack frame and can slide along its own length direction; one end of the telescopic rod is fixedly arranged on the inner side wall of the crushing chamber, and the other end is hinged to the counter - attack frame.

[0021] Further, the number of the counter - attack frames is multiple and they are arranged at intervals along the circumferential direction of the crushing roller.

[0022] The beneficial effects of the present invention are as follows:

[0023] When the construction waste crushing device for construction engineering provided by the present invention is in use, first, the cycloid pinwheel rotating mechanism drives the crushing roller to move in a cycloid pinwheel - type rotation mode so that the distance between the crushing roller and the bottom end of the counter - attack frame remains unchanged. Then, construction waste is put into the crushing chamber. Under the action of gravity, the construction waste first falls onto the crushing roller, and then is driven by the cutter body to be thrown out tangentially along the crushing roller, then falls onto the counter - attack lining plate and is counter - attacked by the counter - attack lining plate and falls onto the crushing roller again. This process is repeated to achieve impact crushing. Until the particle size of the construction waste meets the requirements, the construction waste can pass through between the crushing roller and the bottom end of the counter - attack frame. Thus, while ensuring the crushing accuracy, the situation of re - crushing is avoided, which is beneficial to improving the crushing efficiency. And by setting the crushing roller to move in a cycloid manner, the crushing roller can achieve eccentric self - rotation, which can increase the crushing force while being able to process smooth or difficult - to - crush construction waste, which is beneficial to improving the versatility of the crushing device.

[0024] Further, by setting the number of eccentric wheels to two, and the two eccentric wheels are arranged with a 180-degree stagger, and a cycloid gear is fixedly sleeved on each eccentric wheel, so that when in use, at least one cycloid gear contacts the pin tooth column at the bottom of the pin tooth housing, and further enables the crushing roller to be supported by the central shaft and the pin tooth housing simultaneously, thereby improving the stability of the crushing roller during movement and helping to extend the service life.

[0025] Further, by arranging wavy teeth at the bottom of the inner arc surface of the counterattack frame, so that when in use, a cycloid pinwheel type of movement is formed between the cutter body and the teeth, and further ensures the distance accuracy between the crushing roller and the bottom of the counterattack frame, thereby further improving the crushing accuracy.

[0026] Further, by setting the number of counterattack frames to be multiple and arranged at intervals along the circumferential direction of the crushing roller, so that when in use, the multiple counterattack frames can increase the number of counterattacks of the construction waste inside the crushing chamber, thereby achieving the effect of fine crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a three-dimensional structural schematic diagram of a construction waste crushing device for construction engineering provided by an embodiment of the present invention;

[0028] Figure 2 is a side view structural schematic diagram of a construction waste crushing device for construction engineering provided by an embodiment of the present invention;

[0029] Figure 3 is Figure 2 the sectional view taken along the line A-A in

[0030] Figure 4 is Figure 3 the partial enlarged structural schematic diagram at B in

[0031] Figure 5 is a front view structural schematic diagram of a construction waste crushing device for construction engineering provided by an embodiment of the present invention;

[0032] Figure 6 is Figure 5 the sectional view taken along the line C-C in

[0033] Figure 7 is a three-dimensional structural schematic diagram when the crushing roller and the cycloid pinwheel rotating mechanism of a construction waste crushing device for construction engineering provided by an embodiment of the present invention are assembled;

[0034] Figure 8 is a part decomposition schematic diagram when the crushing roller and the cycloid pinwheel rotating mechanism of a construction waste crushing device for construction engineering provided by an embodiment of the present invention are assembled;

[0035] Figure 9 isFigure 8 Schematic diagram of the partial enlarged structure at position D in the [device].

[0036] Wherein:

[0037] 1. Crushing bin; 101. Feed inlet; 102. Discharge outlet;

[0038] 2. Crushing roller; 21. Cutter body;

[0039] 3. Counterattack frame; 31. Counterattack liner; 32. Teeth;

[0040] 4. Cycloid pinwheel transmission mechanism; 41. Central shaft; 42. Eccentric wheel; 43. Cycloid wheel; 44. Pin gear housing; 441. Pin gear column; 45. Driving assembly; 451. Driving motor; 452. First belt pulley; 453. Second belt pulley; 454. Transmission belt;

[0041] 5. Adjusting mechanism; 51. Tie rod; 52. Telescopic rod. Detailed implementation manners

[0042] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0043] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The terms "connection" and "coupling" mentioned herein, unless otherwise specifically stated, both include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.

[0044] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0045] As shown Figures 1 to 9 in the figure, the construction waste crushing device provided by an embodiment of the present invention is used to crush construction waste, and is configured to include a crushing chamber 1, a crushing roller 2, a counterattack frame 3 and a cycloidal pinwheel rotating mechanism 4. Among them, the crushing roller 2 is movably inserted into the crushing chamber 1, and a plurality of cutter bodies 21 are arranged on the circumferential side wall of the crushing roller 2. The cutter bodies 21 are used to throw the construction waste along the tangential direction of the crushing roller 2; the counterattack frame 3 is inserted into the crushing chamber 1 and is configured as a C-shaped structure. The opening of the counterattack frame 3 faces the crushing roller 2. A plurality of counterattack liners 31 are arranged on the inner arc surface of the counterattack frame 3 facing the crushing roller 2. The counterattack liners 31 are used to first receive the construction waste thrown out by the cutter bodies 21 and then counterattack it; the cycloidal pinwheel rotating mechanism 4 is configured to be able to drive the crushing roller 2 to move in a cycloidal pinwheel rotation mode so that the distance between the crushing roller 2 and the bottom end of the counterattack frame 3 remains unchanged.

[0046] Specifically, in this embodiment, as Figure 1 shown, the crushing chamber 1 is configured as a box structure; for facilitating the reception and discharge of construction waste, as Figure 6 shown, a feed inlet 101 is opened on the left side of the top of the crushing chamber 1. The feed inlet 101 is used to receive construction waste. The bottom of the crushing chamber 1 is provided with an open end and forms a discharge outlet 102. The discharge outlet 102 is used to discharge the crushed construction waste.

[0047] As Figure 6 shown, the crushing roller 2 is horizontally arranged during installation and is located at the lower left corner of the crushing chamber 1; as Figure 7 shown, the cutter body 21 is configured as a strip structure and is parallelly inserted on the circumferential side wall of the crushing roller 2 during installation. And the edge of the cutter body 21 in the radial direction of the crushing roller 2 exceeds the circumferential side wall of the crushing roller 2. The number of cutter bodies 21 can be set to eight and are arranged at equal intervals along the circumferential direction.

[0048] As Figure 6 shown, the counterattack frame 3 is configured as a plate structure and is horizontally arranged during installation and is located at the upper right corner of the crushing chamber 1; the number of counterattack liners 31 can be set to five and are arranged in an overlapping manner along the circumferential direction of the counterattack frame 3.

[0049] In use, first, the cycloidal pinwheel rotating mechanism 4 drives the crushing roller 2 to move in a cycloidal pinwheel rotation mode, so as to keep the distance between the crushing roller 2 and the bottom end of the counterattack frame 3 unchanged. Then, construction waste is put into the crushing chamber 1 through the feed inlet 101. Under the action of gravity, the construction waste first falls onto the crushing roller 2, and then is driven by the cutter body 21 to be thrown out along the tangential direction of the crushing roller 2, and then falls onto the counterattack lining plate 31 and is counterattacked by the counterattack lining plate 31 and falls onto the crushing roller 2 again. This process is repeated to achieve impact crushing. Until the particle size of the construction waste meets the requirements, the construction waste can pass through between the crushing roller 2 and the bottom end of the counterattack frame 3 and be discharged from the discharge outlet 102, thus ensuring the crushing accuracy while avoiding re-crushing, which is beneficial to improving the crushing efficiency. And by setting the crushing roller 2 to move in a cycloidal manner, the crushing roller 2 can achieve eccentric self-rotation, which can increase the crushing force while being able to process smooth or difficult-to-crush construction waste, which is beneficial to improving the versatility of the crushing device.

[0050] In some embodiments, the cycloidal pinwheel rotating mechanism 4 is arranged to include a central shaft 41 and a pin gear housing 44. The central shaft 41 penetrates through the crushing chamber 1 and can rotate self. The axis of the central shaft 41 is parallel to the axis of the crushing roller 2. An eccentric wheel 42 is eccentrically and fixedly sleeved on the central shaft 41. A cycloid wheel 43 is fixedly sleeved on the eccentric wheel 42. The outer peripheral wall shape of the cycloid wheel 43 is set to be wavy, and has wave peaks and wave valleys with the same number as the number of cutter bodies 21, and there is a wave valley between every two adjacent wave peaks, and the cutter body 21 is correspondingly arranged with the wave valley; the crushing roller 2 is coaxially and fixedly arranged on the end face of the cycloid wheel 43; the pin gear housing 44 is fixedly arranged outside the crushing chamber 1 and is coaxially arranged with the central shaft 41. A plurality of pin tooth columns 441 are inserted parallel to the inner axis of the pin gear housing 44, and the plurality of pin tooth columns 441 are arranged at equal intervals in the circumferential direction, and the pin tooth columns 441 are meshed with the cycloid wheel 43.

[0051] Specifically in this embodiment, as Figure 3 and Figure 4 shown, the central shaft 41 is arranged at the lower left corner of the crushing chamber 1 and penetrates through the front side wall of the crushing chamber 1; the pin gear housing 44 is fixedly arranged on the front side wall of the crushing chamber 1; the eccentric wheel 42 is arranged to be composed of a cam part and a bearing part, wherein the bearing part is fixedly sleeved on the outer layer of the cam part during installation, and the cycloid wheel 43 is fixedly sleeved on the outer layer of the bearing part during installation; as Figure 9 shown, the outer peripheral wall of the cycloid wheel 43 has eight wave peaks and eight wave valleys, and the eight wave peaks are arranged at equal intervals in the circumferential direction, and the eight wave valleys are arranged at equal intervals in the circumferential direction; the pin gear housing 44 is arranged as an annular shell structure, and the two ends of the pin tooth column 441 are respectively vertically arranged on the two inner end faces of the pin gear housing 44 during installation. The number of the pin tooth columns 441 can be set to nine and are arranged at equal intervals in the circumferential direction.

[0052] During use, it drives the central shaft 41 to rotate. The central shaft 41 synchronously drives the cam part to rotate eccentrically, the cam part synchronously drives the inner layer of the bearing part to rotate eccentrically, the inner layer of the bearing part synchronously drives the outer layer of the bearing part to swing reciprocally, the outer layer of the bearing part synchronously drives the cycloid gear 43 to swing reciprocally, and through the meshing between the cycloid gear 43 and the pin tooth column 441, the cycloid gear 43 can rotate self - synchronously, and then synchronously drives the crushing roller 2 to rotate self - synchronously and swing reciprocally.

[0053] During the movement of the crushing roller 2, since the cutter body 21 and the trough of the cycloid gear 43 are correspondingly arranged, when the cutter body 21 moves to correspond to the bottom end of the counter - attack frame 3, the crushing roller 2 synchronously moves away from the bottom end of the counter - attack frame 3, so that the size of the outlet formed between the crushing roller 2 and the bottom end of the counter - attack frame 3 remains unchanged; when the part between the cutter bodies 21 on the crushing roller 2 moves to correspond to the bottom end of the counter - attack frame 3, the crushing roller 2 synchronously moves closer to the bottom end of the counter - attack frame 3, so that the size of the outlet formed between the crushing roller 2 and the bottom end of the counter - attack frame 3 remains unchanged.

[0054] In a further embodiment, the number of eccentric wheels 42 is two, the two eccentric wheels 42 are arranged with a 180 - degree stagger, and each eccentric wheel 42 is fixedly sleeved with a cycloid gear 43.

[0055] Specifically in this embodiment, as Figure 9 shown, the convex ends of the cam parts of the two eccentric wheels 42 are arranged in opposite directions.

[0056] During the movement of the crushing roller 2, when one of the cycloid gears 43 moves towards the bottom end of the counter - attack frame 3, the other cycloid gear 43 synchronously moves towards the bottom end of the counter - attack frame 3, so that at least one cycloid gear 43 contacts the pin tooth column 441 located at the bottom of the pin tooth housing 44, and then the crushing roller 2 can be supported by both the central shaft 41 and the pin tooth housing 44 simultaneously, thereby improving the stability of the crushing roller 2 during movement and contributing to extending its service life.

[0057] In other embodiments, the bottom end of the inner arc surface of the counter - attack frame 3 is provided with wavy teeth 32.

[0058] Specifically in this embodiment, as Figure 6 shown, the convex surface of the teeth 32 faces the crushing roller 2.

[0059] During use, a cycloid pinwheel - type movement is formed between the cutter body 21 and the teeth 32, and then the distance accuracy between the crushing roller 2 and the bottom end of the counter - attack frame 3 can be further guaranteed, thereby further improving the crushing accuracy.

[0060] In other embodiments, the cycloid pinwheel rotating mechanism 4 is further configured to include a driving component 45, and the driving component 45 is configured to be able to provide the driving force for the self - rotation of the central shaft 41.

[0061] Specifically in this embodiment, the driving assembly 45 can be set to include a driving motor 451, a first transmission wheel, a second transmission wheel, and a transmission member. The first transmission wheel is fixedly sleeved on the motor shaft of the driving motor 451, the second transmission wheel is fixedly sleeved on the central shaft 41, and the transmission member is simultaneously transmission-connected between the first transmission wheel and the second transmission wheel.

[0062] More specifically, the first transmission wheel can be set as a first belt pulley 452, the second transmission wheel can be set as a second belt pulley 453, and the transmission member can be set as a transmission belt 454. When installed, the transmission belt 454 is simultaneously frictionally sleeved on the first belt pulley 452 and the second belt pulley 453.

[0063] During use, start the driving motor 451. The driving motor 451 drives the first belt pulley 452 to rotate self - rotatably. The first belt pulley 452 synchronously drives the second belt pulley 453 to rotate self - rotatably through the transmission belt 454, and the second belt pulley 453 synchronously drives the central shaft 41 to rotate self - rotatably.

[0064] It can be understood that the first transmission wheel can also be set as a first sprocket, the second transmission wheel can be set as a second sprocket, and the transmission member can be set as an endless chain. When installed, the endless chain is simultaneously transmission - sleeved on the first sprocket and the second sprocket.

[0065] In some other embodiments, to better support the crushing roller 2, the construction waste crushing device for construction engineering is further provided with a support mechanism for supporting the crushing roller 2.

[0066] Specifically in this embodiment, the support mechanism can be set to include a support shaft and a support groove. The support shaft is coaxially and fixedly arranged on the end face of the crushing roller 2 far from the central shaft 41. The support groove is set as an annular groove structure and is opened on the inner side wall of the crushing chamber 1. The support shaft is slidably inserted into the support groove during installation, so as to be able to support the crushing roller 2 bidirectionally.

[0067] In other embodiments, the support mechanism can also be set to have the same structure as the cycloid pinwheel rotating mechanism 4 except for the driving assembly 45, and is symmetrically arranged with the cycloid pinwheel rotating mechanism 4 at both ends of the crushing roller 2 during installation, so as to be able to support the crushing roller 2 bidirectionally.

[0068] In some other embodiments, the construction waste crushing device for construction engineering is further provided with an adjusting mechanism 5, and the adjusting mechanism 5 is configured to be able to adjust the opening direction of the counter - attack frame 3.

[0069] Specifically in this embodiment, the adjusting mechanism 5 can be arranged to include a pull rod 51 and a telescopic rod 52. The pull rod 51 penetrates through the crushing chamber 1 and is fixedly arranged on the counter-attack frame 3, and can slide along its own length direction; one end of the telescopic rod 52 is fixedly arranged on the inner side wall of the crushing chamber 1, and the other end is hinged on the counter-attack frame 3.

[0070] As Figure 6 shown, when installed, the pull rod 51 penetrates through the upper right side of the top of the crushing chamber 1 and is fixedly connected to the left side of the outer arc surface of the counter-attack frame 3; when installed, the fixed end of the telescopic rod 52 is fixedly arranged on the inner top wall of the crushing chamber 1, and the moving end is hinged to the right side of the outer arc surface of the counter-attack frame 3.

[0071] To facilitate the realization of the sliding of the pull rod 51 along its own length direction, a nut is arranged on the top of the crushing chamber 1. The nut can rotate by itself and is threadedly sleeved on the pull rod 51.

[0072] During the use process, rotate the nut, and the nut drives the pull rod 51 to insert into or pull out of the crushing chamber 1 through thread cooperation, so that the gap size between the crushing roller 2 and the counter-attack frame 3 can be changed to control the particle size range of the crushed construction waste.

[0073] In some other embodiments, to further improve the crushing accuracy, the number of counter-attack frames 3 can be set to be multiple and arranged at intervals along the circumferential direction of the crushing roller 2.

[0074] Specifically in this embodiment, taking the number of counter-attack frames 3 being set to two as an example, as Figure 6 shown, one of the counter-attack frames 3 is located at the upper right position on the right side, and the other counter-attack frame 3 is located at the lower right position on the right side.

[0075] During use, after the construction waste is driven by the cutter body 21 and thrown out tangentially along the crushing roller 2, it can first fall onto the counter-attack lining plate 31 located at the upper right on the right side and be counter-attacked by this counter-attack lining plate 31 and then fall onto the crushing roller 2 again, and so on, and then fall onto the counter-attack lining plate 31 located at the lower right on the right side and be counter-attacked by this counter-attack lining plate 31 and then fall onto the crushing roller 2 again, and so on, to achieve the fine crushing effect.

[0076] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combinations of these technical features do not conflict, they should all be considered as the scope described in this specification.

[0077] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention.

Claims

1. A construction waste crushing device for construction engineering, characterized in that: The construction waste crushing device for construction engineering comprises: The crushing chamber has an open bottom to form a discharge port, and a feed port on the left side of the top; The crushing roller is movably inserted in the lower left corner of the crushing chamber, and a plurality of cutter bodies are arranged on the circumferential side wall of the crushing roller, and the cutter bodies are used to throw out the construction waste along the tangential direction of the crushing roller; The impact frame is inserted in the upper right corner of the crushing chamber and is set to a C-shaped structure. The opening of the impact frame faces the crushing roller. A plurality of impact liners are arranged on the inner arc surface of the impact frame facing the crushing roller. The impact liners are used to first receive the construction waste thrown out by the cutter body and then impact it out. The cycloid pinwheel rotating mechanism comprises a central shaft and a pinwheel housing, wherein the central shaft passes through the crushing bin and can rotate by itself, the axis of the central shaft is parallel to the axis of the crushing roller, an eccentric wheel is eccentrically and fixedly sleeved on the central shaft, a cycloid wheel is fixedly sleeved on the eccentric wheel, the outer peripheral wall shape of the cycloid wheel is arranged in a wave shape, and has a number of crests and troughs equal to the number of the cutter body, and a trough is arranged between each two adjacent crests, and the cutter body and the trough are arranged correspondingly; the crushing roller is coaxially and fixedly arranged on the end face of the cycloid wheel; the pinwheel housing is fixedly arranged outside the crushing bin and coaxially arranged with the central shaft, and a plurality of pinwheel columns are inserted parallel to the inner axis of the pinwheel housing, A plurality of pin-tooth columns are arranged at equal intervals along the circumferential direction, the pin-tooth columns are meshed with the cycloidal wheel, and the cycloidal pinwheel rotation mechanism is configured to drive the crushing roller to move in a cycloidal pinwheel rotation manner. During the movement of the crushing roller, due to the correspondence between the wave valleys of the cutter body and the cycloidal wheel, when the cutter body moves to correspond to the bottom end of the impact frame, the crushing roller synchronously moves in a direction away from the bottom end of the impact frame, thereby keeping the size of the outlet formed by the crushing roller and the bottom end of the impact frame unchanged; when the portion between the cutter bodies on the crushing roller moves to correspond to the bottom end of the impact frame, the crushing roller synchronously moves in a direction close to the bottom end of the impact frame, thereby keeping the size of the outlet formed by the crushing roller and the bottom end of the impact frame unchanged.

2. The construction waste crushing device for construction engineering according to claim 1, characterized in that: There are two eccentric wheels, which are staggered by 180 degrees. Each eccentric wheel is fixedly sleeved with the cycloid wheel.

3. The construction waste crushing device for construction engineering according to claim 1, characterized in that: The bottom end of the inner arc surface of the impact frame is provided with wavy teeth.

4. The construction waste crushing device for construction engineering according to claim 1, characterized in that: The cycloid pinwheel rotation mechanism further includes a driving assembly configured to provide a driving force for the center shaft to rotate.

5. The construction waste crushing device for construction engineering according to claim 4, characterized in that: The driving assembly includes a driving motor, a first transmission wheel, a second transmission wheel and a transmission member. The first transmission wheel is fixedly sleeved on the motor shaft of the driving motor, the second transmission wheel is fixedly sleeved on the central shaft, and the transmission member is simultaneously transmission-connected between the first transmission wheel and the second transmission wheel.

6. The construction waste crushing device for construction engineering according to claim 1, characterized in that: The construction waste crushing device for construction engineering further comprises a supporting mechanism, and the supporting mechanism is used for supporting the crushing roller.

7. The construction waste crushing device for construction engineering according to claim 1, characterized in that: The construction waste crushing device for construction engineering further comprises an adjusting mechanism, and the adjusting mechanism is configured to be able to adjust the opening direction of the impact frame.

8. The construction waste crushing device for construction engineering according to claim 7, characterized in that: The adjustment mechanism includes a pull rod and a telescopic rod. The pull rod passes through the crushing bin and is fixed on the impact frame and can slide along its own length direction. One end of the telescopic rod is fixed on the inner wall of the crushing bin and the other end is hinged on the impact frame.

9. The construction waste crushing device for construction engineering according to claim 1, characterized in that: There are multiple impact racks, which are arranged at intervals along the circumference of the crushing roller.

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