Efficient walnut shell crusher

Abstract

The efficient walnut shell crusher is characterized in that a rack is used for achieving centralized installation of a first-stage crushing mechanism, a vibration screening mechanism, a second-stage crushing mechanism and an automatic waste recycling mechanism; the primary crushing mechanism is used for primarily crushing walnut shell raw materials; the vibrating screening mechanism is used for receiving the walnut shell particles output by the primary crushing mechanism and conveying the walnut shell particles to a secondary feeding hole of the secondary crushing mechanism through screening and grading; the secondary crushing mechanism is used for further crushing the walnut shell particles, outputting crushed materials with qualified particle sizes through a discharge port in the lower end, and conveying materials with unqualified particle sizes to the automatic waste recovery mechanism; the waste recycling mechanism is used for receiving the output unqualified particle materials at the lower end working position through a receiving hopper, rising the unqualified particle materials to the upper end working position after the unqualified materials in the receiving hopper reach the set amount, and pouring the unqualified materials onto a screen plate of the vibration screening mechanism, so that recycling and re-crushing are achieved. According to the invention, the whole process of automatic treatment of walnut shells from feeding to fine crushing is realized.

Description

Technical Field

[0001] This invention belongs to the field of fruit shell crushing technology, specifically relating to a high-efficiency walnut shell crusher. Background Technology

[0002] During underground oil extraction operations, the rock fissures created by the equipment need to be filled with support material to prevent them from closing under stress. The support material needs to have a certain degree of hardness, and to avoid contamination, organic support fillers are required. Currently, crushed dried fruit shells, especially walnut shells, are commonly used as support fillers.

[0003] Currently, walnut shells are typically crushed using methods such as impact, compression, and kneading. However, existing crushing methods need further improvement in terms of crushing efficiency, waste, and the uniformity of the crushed particles. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by proposing a high-efficiency walnut shell crusher that achieves fine crushing of walnut shells, high crushing efficiency, and good particle size uniformity. The above-mentioned objective of this invention is achieved through the following technical solution: A high-efficiency walnut shell crusher mainly includes a frame, a primary crushing mechanism, a vibrating screening mechanism, a secondary crushing mechanism, and an automatic waste recycling mechanism; The frame is used to centrally install the primary crushing mechanism, vibrating screen mechanism, secondary crushing mechanism, and automatic waste recycling mechanism. The primary crushing mechanism is used for initial crushing of walnut shell raw materials. The vibrating screen mechanism is used to receive the walnut shell particles output from the primary crushing mechanism and convey them to the secondary feed port of the secondary crushing mechanism through screening and grading. The secondary crushing mechanism is used to further crush the walnut shell particles, outputting the qualified particle size material through the lower discharge port and conveying the unqualified particle size material through the waste outlet on the side to the automatic waste recycling mechanism. The waste recycling mechanism is used to receive the unqualified particle material output at the lower working position through the receiving hopper, and after the unqualified material in the receiving hopper reaches the set amount, it rises to the upper working position and dumps the unqualified material onto the screen plate of the vibrating screen mechanism for recycling and re-crushing. The primary crushing mechanism, vibrating screening mechanism, and secondary crushing mechanism are arranged sequentially, and the automatic waste recycling mechanism is located on the side of the vibrating screening mechanism and the secondary crushing mechanism away from the secondary feed inlet.

[0005] Furthermore, the primary crushing mechanism is installed at the upper end of the frame and includes a primary crushing chamber, a primary feed inlet, a primary discharge outlet, a primary cylindrical screen, a primary crushing blade assembly, a primary drive motor, and a primary transmission mechanism. The primary crushing chamber is a cylindrical cavity, including a large-diameter cylindrical cavity at the front end, a small-diameter cylindrical cavity at the rear end, and a front cover, all coaxially arranged. The large-diameter cylindrical cavity at the front end is the crushing operation chamber, and the small-diameter cylindrical cavity at the rear end is the bearing mounting cavity. The primary crushing chamber is horizontally arranged and fixed to the frame by flanges outside the chamber. The primary crushing blade assembly consists of a blade shaft and multiple sets of crushing blades evenly distributed and fixed along the axial direction on the front section of the blade shaft. The rear section of the blade shaft of the primary crushing blade assembly is rotatably supported by bearings in the bearing mounting cavity of the primary crushing chamber. The multiple sets of crushing blades on the primary crushing blade assembly are arranged inside the crushing operation chamber, and a primary cylindrical screen is arranged around the crushing blades inside the crushing operation chamber, with the primary cylindrical screen fixed inside the crushing operation chamber. The rear end of the cutter shaft of the primary crushing cutter group is the power input end, which is connected to the primary drive motor through a primary transmission mechanism. The primary feed inlet consists of a feeding funnel and a feeding bend. The lower end of the feeding funnel is fixedly connected to the upper end of the feeding bend. The feeding bend is inserted and fixed to the center hole on the front cavity cover. The lower end of the feeding bend extends into the front end of the primary cylindrical screen to convey the walnut shell raw material into the primary cylindrical screen. The primary discharge port is connected to the lower end of the primary crushing chamber and communicates with the inner cavity of the primary crushing chamber.

[0006] Furthermore, the vibrating screening mechanism is located below the primary discharge port and includes a screen plate and a screen plate driving mechanism. The screen plate is composed of a bottom plate, a front baffle, a rear baffle, and a right baffle. The left end is tapered and serves as the discharge end, which is located above the secondary inlet. The right end is the waste recycling end. The screen plate driving mechanism is located below the screen plate and is used to drive the screen plate to move back and forth.

[0007] Furthermore, the screen plate drive mechanism includes a base plate, four swing arms, a screening drive shaft, a crank, and a connecting rod. The base plate is located below the screen plate and is fixedly installed on the upper end of the secondary crushing chamber of the secondary crushing mechanism. The lower end of the screen plate is provided with four upper hinge points arranged according to the four corners of a square, and the upper end of the base plate is provided with four lower hinge points arranged according to the four corners of a square. The four lower hinge points are arranged opposite to the four upper hinge points and are connected by four swing arms. The screening drive shaft is rotatably mounted on the upper part of the base plate through bearing seats at both ends. One end of the screening drive shaft is equipped with a screening driven wheel, which is connected to the screening drive wheel fixed to the rear end of the cutter shaft of the primary crushing blade assembly through a screening drive belt. One end of the crank is fixedly connected to the other end of the screening drive shaft, and the other end of the crank is rotatably connected to one end of the connecting rod. The other end of the connecting rod is rotatably connected to the side of the screen plate through a pin.

[0008] Furthermore, the secondary crushing mechanism includes a secondary crushing chamber, a secondary feed inlet, a secondary discharge outlet, a secondary screen, a secondary crushing blade assembly, a secondary drive motor, and a secondary transmission mechanism; The secondary crushing chamber adopts a square box shape and is fixedly installed on the frame. A secondary feed inlet is set at the upper end near the left side. The upper end of the secondary feed inlet is set to the left and below the discharge end of the screen plate. The lower end of the secondary crushing chamber adopts a conical opening shape, which is the discharge end. The secondary discharge port is connected to the discharge end of the secondary crushing chamber to realize the output of qualified granular material. The secondary crushing blade assembly consists of two sets, which are supported horizontally and horizontally within the secondary crushing chamber. Each secondary crushing blade assembly comprises a blade shaft and multiple sets of blades evenly distributed and fixed on the upper end of the blade shaft along the axial direction. The rear ends of the blade shafts of the two sets of secondary crushing blade assemblies are connected by a belt drive mechanism. The front end of the blade shaft of one of the secondary crushing blade assemblies is the power input end, which is connected to the secondary drive motor through the secondary transmission mechanism. The secondary screen is fixed below the two sets of secondary crushing blades in the secondary crushing chamber with the left end higher than the right end. On the right side wall of the secondary crushing chamber, a waste outlet is provided at the position corresponding to the lower end of the secondary screen.

[0009] Moreover, the secondary feed inlet consists of an upper square conical feed inlet section and a lower right-inclined square cylindrical feed inlet section, which enables the granular material output from screening to be transported into the secondary crushing chamber.

[0010] Furthermore, the automatic waste recycling mechanism includes a receiving hopper, a receiving hopper support, a lifting guide frame, and a lifting drive mechanism; the lifting guide frame consists of a base plate and two identical guide rails vertically fixed to the base plate; the base plate is fixedly connected to the extended support platform on the right side of the frame; the two guide rails are arranged parallel to each other, each guide rail consisting of a lower vertical guide rail section, an upper horizontal guide rail section, and an arc transition connecting section, the height of the upper horizontal guide rail section being higher than the screen plate; guide grooves with the same shape as the guide rails are provided on opposite sides of the two guide rails; the receiving hopper support is a square frame support, with a widened mounting plate at its upper end, used for... The receiving hopper is fixed; the receiving hopper support has extended upper arms at the upper ends of the front and rear side frames, and each upper arm is connected to a first roller. The two first rollers are respectively fitted and slidably engaged with the guide grooves on the front and rear guide rails; the receiving hopper support has extended lower arms at the lower ends of the front and rear side frames, and the front and rear lower arms are respectively connected to a set of traveling wheels. The two sets of traveling wheels are guided by the two guide grooves in a vertically movable manner; one set of traveling wheels is connected to the lifting drive mechanism; the receiving hopper is in the form of a scoop, and the receiving hopper is fixed to the mounting plate at the upper end of the receiving hopper support with the opening side facing left.

[0011] Furthermore, both sets of walking wheel sets consist of a second roller, a third roller, a roller mounting plate, and a connecting arm; the second roller and the third roller are rotatably mounted on the same side of the roller mounting plate via their respective axles, and can be slidably embedded into the corresponding guide grooves; the upper end of the connecting arm is rotatably connected to the inner end of the lower support arm via a pin, and the lower end of the connecting arm is rotatably connected to the roller mounting plate via a pin.

[0012] Furthermore, the lifting drive mechanism includes a lifting drive motor, a lifting drive wheel, a lifting driven wheel, and a lifting transmission belt. The lifting drive motor is fixedly mounted on the base plate of the lifting guide frame. The lifting drive wheel is mounted on the output end of the lifting drive motor. The lifting driven wheel is positioned above the lifting drive wheel. The lifting driven wheel is mounted on the driven wheel bracket via a bearing seat. The driven wheel bracket is fixedly connected to the lower end of the upper transverse guide rail section of one side guide rail. The lifting transmission belt is connected to the connecting arm of the nearby walking wheel assembly via a connecting plate. When the first roller, the second roller, and the third roller are all located in the vertical guide groove, the receiving hopper is horizontally positioned. When the first roller moves to the horizontal guide groove, and the second roller and the third roller are both located in the vertical guide groove, the receiving hopper moves as a whole to the top of the screen plate, and the receiving hopper flips from left to right, thus pouring the recovered granular material in the receiving hopper onto the screen plate.

[0013] Furthermore, through-beam laser sensors are installed on the front and rear side frames of the receiving hopper to monitor the amount of material received in the hopper.

[0014] Furthermore, symmetrically protruding curved plates are fixed on both sides of the waste outlet. Vertical sliding grooves are provided on the right ends of the two curved plates, and adjustable baffles are installed in the vertical sliding grooves. A bottom support plate is connected between the two protruding curved plates, and the left end of the bottom support plate is connected to the right end of the secondary screen. An upper limit plate is fixedly installed at the upper end of the vertical sliding grooves on both sides to limit the upward movement of the baffles. Two spring hinges with opposite directions are installed at the front and rear of the discharge end of the receiving hopper. During the upward movement of the receiving hopper, one spring hinge pushes the baffle to the upper working position, simultaneously closing the waste outlet. When the receiving hopper descends, the other spring hinge pushes the baffle to the lower working position, opening the waste outlet for receiving.

[0015] The advantages and positive effects of this invention are as follows: 1. This invention adopts an integrated design of "two-stage crushing + vibrating screening + automatic waste recycling" to achieve fully automated processing of walnut shells from feeding to fine crushing. The material is first coarsely crushed in the first stage, and then evenly conveyed to the second-stage fine crushing through a vibrating screen. Unqualified materials are automatically recycled and reprocessed, forming a closed-loop crushing process. This effectively executes the crushing operation, avoids material waste, and improves crushing efficiency.

[0016] 2. A vibrating screen is installed between the primary crushing mechanism and the secondary crushing mechanism. On the one hand, it can realize the uniform graded conveying of coarsely crushed granular materials to the secondary crushing mechanism, avoiding material accumulation and shortage in the secondary crushing mechanism. On the other hand, it can accept the unqualified granular materials after secondary crushing recovered by the waste automatic recycling mechanism, realize the recycling and re-crushing of granular materials, avoid material waste and ensure the uniformity of product material particles. Attached Figure Description

[0017] Figure 1 This is a front view of the high-efficiency walnut shell crusher of the present invention (the receiving hopper moves down to the position of contacting the upper end of the baffle plate). Figure 2 This is a left view of the high-efficiency walnut shell crusher of the present invention (the receiving hopper moves down to the position of contacting the upper end of the baffle plate). Figure 3 This is a rear view of the high-efficiency walnut shell crusher of the present invention (the receiving hopper moves down to the position of contacting the upper end of the baffle plate). Figure 4 This is a perspective view of the high-efficiency walnut shell crusher of the present invention (the receiving hopper moves down to the position of contacting the upper end of the baffle plate). Figure 5 This is a left view of the primary crushing mechanism of the present invention; Figure 6This is a three-dimensional assembly view of the primary crushing chamber, primary discharge port, primary cylindrical screen and primary crushing blade assembly in the primary crushing mechanism of the present invention. Figure 7 yes Figure 6 Structural diagram without the front cover; Figure 8 This is a front view of the vibrating screening mechanism of the present invention; Figure 9 This is a perspective view of the vibrating screening mechanism of the present invention; Figure 10 This is a front view of the secondary crushing mechanism of the present invention; Figure 11 This is a perspective view of the two-stage crushing mechanism of the present invention; Figure 12 yes Figure 11 Schematic diagram of the internal structure of the front cavity plate without the secondary crushing chamber; Figure 13 This invention relates to a three-dimensional automatic waste recycling mechanism. Figure 1 ; Figure 14 This invention relates to a three-dimensional automatic waste recycling mechanism. Figure 2 ; Figure 15 This is a front view of the high-efficiency walnut shell crusher of the present invention (with the receiving hopper moved to the upper working position). Figure 16 This is a perspective view of the high-efficiency walnut shell crusher of the present invention (with the receiving hopper moved to the upper working position). Figure 17 This is a front view of the high-efficiency walnut shell crusher of the present invention (with the receiving hopper moved to the lower working position). Figure 18 This is a perspective view of the high-efficiency walnut shell crusher of the present invention (with the receiving hopper moved to the lower working position). In the diagram: 1. Primary crushing mechanism; 1-1. Primary drive motor; 1-2. Primary transmission mechanism; 1-3. Primary crushing chamber; 1-3-1. Front chamber cover; 1-4. Primary feed inlet; 1-5. Primary discharge outlet; 1-6. Primary cylindrical screen; 1-7. Primary crushing blade assembly; 2. Vibrating screening mechanism; 2-1. Screen plate; 2-1-1. Discharge end; 2-1-2. Waste recovery end; 2-2. Swing arm; 2-3. 1. Base plate; 2-4. Crank; 2-5. Connecting rod; 2-6. Screening drive shaft; 2-7. Screening driven wheel; 3. Automatic waste recycling mechanism; 3-1. Lifting guide frame; 3-1-1. Base plate; 3-1-2. Guide rail; 3-2. Lifting drive mechanism; 3-2-1. Lifting drive motor; 3-2-2. Lifting transmission belt; 3-3. Hopper support; 3-3-1. Base plate; 3-3-2. Guide rail; 3-4. Hopper; 3-5. Through-beam laser sensor; 3-6. Spring hinge; 3-7. Lower support arm; 3-8. Connecting arm; 3-9. Second roller; 3-10. Third roller; 3-11. First roller; 3-12. Upper support arm; 3-13. Connecting plate; 4. Frame; 5. Secondary crushing mechanism; 5-1. Secondary feed inlet; 5-2. Secondary crushing chamber; 5-3. Secondary transmission mechanism; 5-4. Secondary discharge outlet; 5-5. Secondary drive motor; 5-6. Bending plate; 5-7. Upper limit plate; 5-8. Baffle plate; 5-9. Secondary crushing blade assembly; 5-10. Secondary screen. Detailed Implementation

[0018] The structure of the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that these embodiments are descriptive and not limiting.

[0019] For an efficient walnut shell crusher, please see [link / reference]. Figures 1-18 Its invention points are: mainly including frame 4, primary crushing mechanism 1, vibrating screening mechanism 2, secondary crushing mechanism 5 and waste automatic recycling mechanism 3.

[0020] The frame is used to centrally install the primary crushing mechanism, vibrating screen mechanism, secondary crushing mechanism, and automatic waste recycling mechanism. The primary crushing mechanism is used for initial crushing of the walnut shell raw material. The vibrating screen mechanism receives the walnut shell particles output from the primary crushing mechanism and conveys them to the secondary feed inlet of the secondary crushing mechanism through screening and grading. The secondary crushing mechanism further crushes the walnut shell particles, outputting the qualified particle size through the lower discharge port and conveying the unqualified particle size through the side waste outlet to the automatic waste recycling mechanism. The waste recycling mechanism receives the unqualified particle material output through a receiving hopper at the lower working position. After the unqualified material in the receiving hopper reaches a set amount, it rises to the upper working position and dumps the unqualified material onto the screen plate of the vibrating screen mechanism for recycling and re-crushing.

[0021] The frame is welded from profiles. The primary crushing mechanism, vibrating screen mechanism, and secondary crushing mechanism are arranged sequentially, and the automatic waste recycling mechanism is located on the side of the vibrating screen mechanism and the secondary crushing mechanism away from the secondary feed inlet.

[0022] The primary crushing mechanism is installed at the upper end of the frame and includes a primary crushing chamber 1-3, a primary feed inlet 1-4, a primary discharge outlet 1-5, a primary cylindrical screen 1-6, a primary crushing blade assembly 1-7, a primary drive motor 1-1, and a primary transmission mechanism 1-2. The primary crushing chamber is a cylindrical cavity, including a large-diameter cylindrical cavity at the front end, a small-diameter cylindrical cavity at the rear end, and a front cover 1-3-1, all coaxially arranged. The large-diameter cylindrical cavity at the front end is the crushing working chamber, and the small-diameter cylindrical cavity at the rear end is the bearing mounting chamber. The primary crushing chamber is horizontally positioned and fixed to the frame by an external flange. The primary crushing blade assembly consists of a cutter shaft and multiple sets of crushing blades evenly distributed and fixed along the front section of the cutter shaft. The rear section of the cutter shaft of the primary crushing blade assembly is rotatably supported by bearings in the bearing mounting chamber of the primary crushing chamber. The multiple sets of crushing blades on the primary crushing blade assembly are located within the crushing working chamber, and a primary cylindrical screen is positioned around the crushing blades within the crushing working chamber. The primary cylindrical screen is fixed inside the crushing chamber. The fixing method is as follows: mounting grooves are set at the bottom of the crushing chamber and on the inner end face of the front chamber cover. The two ends of the primary cylindrical screen are inserted into the mounting grooves to achieve fixation.

[0023] The rear end of the cutter shaft of the primary crusher assembly is the power input end, which is connected to the primary drive motor through a primary transmission mechanism. In this invention, the primary transmission mechanism is a belt drive mechanism, including a primary driving pulley, a primary driven pulley, and a primary transmission belt. The primary driven pulley is installed at the rear end of the cutter shaft of the primary crusher assembly, the primary driving pulley is installed at the output end of the primary drive motor, and the primary transmission belt connects the primary driving pulley and the primary driven pulley.

[0024] The primary feed inlet consists of a feeding funnel and a feeding bend. The lower end of the feeding funnel is fixedly connected to the upper end of the feeding bend. The feeding bend is inserted and fixed to the center hole on the front cavity cover. The lower end of the feeding bend extends into the front end of the primary cylindrical screen, thereby conveying the walnut shell raw material into the primary cylindrical screen.

[0025] The primary discharge port is connected to the lower end of the primary crushing chamber and communicates with the inner cavity of the primary crushing chamber. In this invention, the primary discharge port is preferably integrally formed with the primary crushing chamber.

[0026] The vibrating screening mechanism is located below the primary discharge port and includes a screen plate 2-1 and a screen plate drive mechanism. The screen plate consists of a bottom plate, a front baffle, a rear baffle, and a right baffle. The left end has a tapered shape and is the discharge end 2-1-1, located above the secondary inlet. The right end is the waste recycling end 2-1-2. The screen plate drive mechanism is located below the screen plate and is used to drive the screen plate to move back and forth. It includes a bottom plate 2-3, four swing rods 2-2, a screening transmission shaft 2-6, a crank 2-4, and a connecting rod 2-5. The bottom plate is located below the screen plate and is fixedly installed at the upper end of the secondary crushing chamber of the secondary crushing mechanism. The lower end of the screen plate has four upper hinge points arranged in a square pattern at its four corners, and the upper end of the bottom plate has four lower hinge points arranged in a square pattern at its four corners. The four lower hinge points are arranged opposite to the four upper hinge points and are connected by the four swing rods. Specifically, the upper end of each swing arm is hinged to the corresponding upper hinge point, and the lower end of each swing arm is hinged to the corresponding lower hinge point. The screening drive shaft is rotatably mounted on the top of the base plate via bearing seats at both ends. One end of the screening drive shaft is equipped with screening driven wheels 2-7, which are connected to the screening drive wheel fixed to the rear end of the cutter shaft of the primary crushing blade assembly via a screening drive belt, thereby realizing the input of screening power. One end of the crank is fixedly connected to the other end of the screening drive shaft, and the other end of the crank is rotatably connected to one end of the connecting rod. The other end of the connecting rod is rotatably connected to the side of the screen plate via a pin.

[0027] The secondary crushing mechanism includes a secondary crushing chamber 5-2, a secondary feed inlet 5-1, a secondary discharge outlet 5-4, a secondary screen 5-10, a secondary crushing blade assembly 5-9, a secondary drive motor 5-5, and a secondary transmission mechanism 5-3.

[0028] The secondary crushing chamber is a box-shaped cavity, fixedly mounted on the frame. A secondary feed inlet is located near the upper left side of the chamber, consisting of an upper conical feed section and a lower, right-sloping, cylindrical feed section, conveying the granular material output from the screening process into the secondary crushing chamber. The lower end of the secondary crushing chamber is tapered, serving as the discharge end. The upper part of the secondary feed inlet is positioned slightly to the left below the discharge end of the screen plate. The secondary discharge outlet connects to the discharge end of the secondary crushing chamber, enabling the output of qualified granular material.

[0029] The secondary crushing cutter assembly consists of two sets, which are supported horizontally and horizontally within the secondary crushing chamber. Each secondary crushing cutter assembly comprises a cutter shaft and multiple sets of blades evenly distributed and fixed to the upper end of the cutter shaft along the axial direction. The rear ends of the cutter shafts of the two sets of secondary crushing cutter assemblies (located outside the secondary crushing chamber) are connected by a pair of gears. The front end of the cutter shaft of one of the secondary crushing cutter assemblies (located outside the secondary crushing chamber) serves as the power input end, connected to the secondary drive motor through a secondary transmission mechanism.

[0030] In this invention, the secondary transmission mechanism adopts a belt transmission mechanism, including a secondary driving pulley, a secondary driven pulley, and a secondary transmission belt. The secondary driven pulley is installed at the front end of the corresponding cutter shaft, the secondary driving pulley is installed at the output end of the secondary drive motor, and the secondary transmission belt is connected between the secondary driving pulley and the secondary driven pulley.

[0031] The secondary screen is fixed below the two sets of secondary crushing blades inside the secondary crushing chamber, with the left end higher than the right. A waste outlet is located on the right side wall of the secondary crushing chamber, corresponding to the lower end of the secondary screen. Symmetrically extending curved plates 5-6 are fixed on both sides of the waste outlet. Vertical sliding grooves are positioned opposite each other at the right ends of the two curved plates. Adjustable baffle plates 5-8 are installed within these vertical sliding grooves to block the waste outlet and prevent waste from falling when the automatic waste recycling mechanism is not receiving waste. A bottom support plate is connected between the two extending curved plates, with its left end connecting to the right end of the secondary screen. Additionally, upper limit plates 5-7 are fixedly installed at the upper ends of the vertical sliding grooves on both sides to limit the upward movement of the baffle plates.

[0032] The automatic waste recycling mechanism includes a receiving hopper 3-4, a receiving hopper support 3-3, a lifting guide frame 3-1, and a lifting drive mechanism 3-2. The lifting guide frame consists of a base plate 3-1-1 and two identical guide rails 3-1-2 vertically fixed to the base plate. The base plate is fixedly connected to the extended support platform on the right side of the frame. The two guide rails are arranged parallel to each other, each consisting of a lower vertical guide rail section, an upper horizontal guide rail section, and an arc-shaped transition connecting section. The height of the upper horizontal guide rail section is higher than the screen plate. Guide grooves with the same shape as the guide rails are provided on opposite sides of the two guide rails. The receiving hopper support is a square frame support with a widened mounting plate at its upper end for fixing the receiving hopper. Extended upper arms 3-12 are provided at the upper ends of the front and rear side frames of the receiving hopper support. First rollers 3-11 are connected to both upper arms, and the two first rollers are slidably fitted into the guide grooves on the front and rear guide rails. The receiving hopper support has outwardly extending lower support arms 3-7 located near the lower end of its front and rear side frames. Each of the front and rear lower support arms is connected to a set of traveling wheels, which are movably positioned to guide the two guide grooves. In this invention, each set of traveling wheels consists of a second roller 3-9, a third roller 3-10, a roller mounting plate, and a connecting arm 3-8. The second and third rollers are rotatably mounted on the same side of the roller mounting plate via their respective axles and are slidably embedded into their corresponding guide grooves. The upper end of the connecting arm is rotatably connected to the inner end of the lower support arm via a pin, and the lower end of the connecting arm is rotatably connected to the roller mounting plate via a pin.

[0033] The receiving hopper is in the form of a scoop, and is fixed to the mounting plate at the upper end of the receiving hopper bracket with the opening side facing left.

[0034] The lifting drive mechanism is used to drive the receiving hopper support to move up and down, thereby driving the receiving hopper to move up and down. In this invention, the lifting drive mechanism includes a lifting drive motor 3-2-1, a lifting drive wheel, a lifting driven wheel, and a lifting transmission belt 3-2-2. The lifting drive motor is fixedly mounted on the base plate of the lifting guide frame. The lifting drive wheel is mounted on the output end of the lifting drive motor. The lifting driven wheel is positioned above the lifting drive wheel. The lifting driven wheel is mounted on the driven wheel bracket through a bearing seat. The driven wheel bracket is fixedly connected to the lower end of the upper horizontal guide rail section of one side guide rail. The lifting transmission belt is connected to the connecting arm of the nearby walking wheel assembly through a connecting plate 3-13, realizing the transmission of lifting power to the receiving hopper support and the receiving hopper, driving the receiving hopper to move up and down. When the first roller, the second roller, and the third roller are all located in the vertical guide groove, the receiving hopper is horizontally positioned. When the first roller moves to the horizontal guide groove, while the second roller and the third roller are both located in the vertical guide groove, the receiving hopper is horizontally positioned. The receiving hopper moves as a whole above the screen plate, and the receiving hopper flips over with the left side lower and the right side higher. In this way, under the action of weight, the granular material recovered in the receiving hopper is poured onto the screen plate, realizing the recovery and re-crushing of the material.

[0035] In the automatic waste recycling mechanism of this invention, to monitor the amount of waste in the receiving hopper, through-beam laser sensors 3-5 are installed on the front and rear side frames of the receiving hopper. If the amount of waste in the receiving hopper reaches a certain level, the waste will block the laser beam path, thereby driving the motor to lift the hopper and pour the waste into the vibrating screen for further processing.

[0036] The automatic waste recycling mechanism of this invention ensures that the baffle plate on the outside of the waste outlet opens promptly when the receiving hopper moves to the lower working position, and closes promptly after the receiving hopper moves upward away from the waste outlet. Two spring hinges 3-6 in opposite directions are installed at the front and rear of the receiving hopper's discharge end. During the hopper's ascent, one spring hinge pushes the baffle plate to the upper working position, simultaneously closing the waste outlet to prevent material waste. Conversely, when the hopper descends, the other spring hinge pushes the baffle plate down to the lower working position, opening the waste outlet for receiving.

[0037] Working principle of this high-efficiency walnut shell crusher: Walnut shells are fed into the primary crushing chamber through the primary inlet. The primary crushing mechanism crushes the walnut shells, and the particle size is controlled by a primary cylindrical screen. After primary crushing, the walnut shells fall onto the screen plate through the primary outlet. The screen plate reciprocates left and right, and the shells are evenly conveyed to the secondary inlet. The shells then enter the secondary crushing chamber through the secondary inlet. Under the action of the secondary crushing blades, the secondary crushing is completed. The material with the qualified particle size after secondary crushing is output from the secondary outlet at the bottom through the secondary crushing port, while the material that does not meet the qualified particle size is conveyed to the receiving hopper along the secondary screen. When the material in the receiving hopper reaches the set value, it is lifted by the lifting mechanism to the screen plate of the vibrating screening mechanism and poured onto the screen plate for recycling and re-crushing.

[0038] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A high-efficiency walnut shell crusher, characterized in that: It includes a frame, a primary crushing mechanism, a vibrating screening mechanism, a secondary crushing mechanism, and an automatic waste recycling mechanism; The frame is used to centrally install the primary crushing mechanism, vibrating screen mechanism, secondary crushing mechanism, and automatic waste recycling mechanism. The primary crushing mechanism is used for initial crushing of walnut shell raw materials. The vibrating screen mechanism is used to receive the walnut shell particles output from the primary crushing mechanism and convey them to the secondary feed port of the secondary crushing mechanism through screening and grading. The secondary crushing mechanism is used to further crush the walnut shell particles, outputting the qualified particle size material through the lower discharge port and conveying the unqualified particle size material through the waste outlet on the side to the automatic waste recycling mechanism. The waste recycling mechanism is used to receive the unqualified particle material output at the lower working position through the receiving hopper, and after the unqualified material in the receiving hopper reaches the set amount, it rises to the upper working position and dumps the unqualified material onto the screen plate of the vibrating screen mechanism for recycling and re-crushing. The primary crushing mechanism, vibrating screening mechanism, and secondary crushing mechanism are arranged sequentially, and the automatic waste recycling mechanism is located on the side of the vibrating screening mechanism and the secondary crushing mechanism away from the secondary feed inlet.

2. The high-efficiency walnut shell crusher according to claim 1, characterized in that: The primary crushing mechanism is installed at the upper end of the frame and includes a primary crushing chamber, a primary feed inlet, a primary discharge outlet, a primary cylindrical screen, a primary crushing blade assembly, a primary drive motor, and a primary transmission mechanism. The primary crushing chamber is a cylindrical cavity, including a large-diameter cylindrical cavity at the front end, a small-diameter cylindrical cavity at the rear end, and a front cover, all coaxially arranged. The large-diameter cylindrical cavity at the front end is the crushing operation chamber, and the small-diameter cylindrical cavity at the rear end is the bearing mounting cavity. The primary crushing chamber is horizontally arranged and fixed to the frame by flanges outside the chamber. The primary crushing blade assembly consists of a blade shaft and multiple sets of crushing blades evenly distributed and fixed along the axial direction on the front section of the blade shaft. The rear section of the blade shaft of the primary crushing blade assembly is rotatably supported by bearings in the bearing mounting cavity of the primary crushing chamber. The multiple sets of crushing blades on the primary crushing blade assembly are arranged inside the crushing operation chamber, and a primary cylindrical screen is arranged around the crushing blades inside the crushing operation chamber and fixed inside the crushing operation chamber. The rear end of the cutter shaft of the primary crushing cutter group is the power input end, which is connected to the primary drive motor through a primary transmission mechanism. The primary feed inlet consists of a feeding funnel and a feeding bend. The lower end of the feeding funnel is fixedly connected to the upper end of the feeding bend. The feeding bend is inserted and fixed to the center hole on the front cavity cover. The lower end of the feeding bend extends into the front end of the primary cylindrical screen to convey the walnut shell raw material into the primary cylindrical screen. The primary discharge port is connected to the lower end of the primary crushing chamber and communicates with the inner cavity of the primary crushing chamber.

3. The high-efficiency walnut shell crusher according to claim 1, characterized in that: The vibrating screening mechanism is located below the primary discharge port and includes a screen plate and a screen plate driving mechanism. The screen plate consists of a bottom plate, a front baffle, a rear baffle, and a right baffle. The left end is tapered and serves as the discharge end, located above the secondary inlet. The right end is the waste recycling end. The screen plate driving mechanism is located below the screen plate and is used to drive the screen plate to move back and forth.

4. The high-efficiency walnut shell crusher according to claim 3, characterized in that: The screen plate drive mechanism includes a base plate, four swing arms, a screening drive shaft, a crank, and a connecting rod. The base plate is located below the screen plate and is fixedly installed on the upper end of the secondary crushing chamber of the secondary crushing mechanism. The lower end of the screen plate has four upper hinge points arranged according to the four corners of a square, and the upper end of the base plate has four lower hinge points arranged according to the four corners of a square. The four lower hinge points are arranged opposite to the four upper hinge points and are connected by four swing arms. The screening drive shaft is rotatably mounted on the upper part of the base plate through bearing seats at both ends. One end of the screening drive shaft is equipped with a screening driven wheel, which is connected to the screening drive wheel fixed to the rear end of the cutter shaft of the primary crushing blade assembly through a screening drive belt. One end of the crank is fixedly connected to the other end of the screening drive shaft, and the other end of the crank is rotatably connected to one end of the connecting rod. The other end of the connecting rod is rotatably connected to the side of the screen plate through a pin.

5. The high-efficiency walnut shell crusher according to claim 1, characterized in that: The secondary crushing mechanism includes a secondary crushing chamber, a secondary feed inlet, a secondary discharge outlet, a secondary screen, a secondary crushing blade assembly, a secondary drive motor, and a secondary transmission mechanism. The secondary crushing chamber adopts a square box shape and is fixedly installed on the frame. A secondary feed inlet is set at the upper end near the left side. The upper end of the secondary feed inlet is set to the left and below the discharge end of the screen plate. The lower end of the secondary crushing chamber adopts a conical opening shape, which is the discharge end. The secondary discharge port is connected to the discharge end of the secondary crushing chamber to realize the output of qualified granular material. The secondary crushing blade assembly consists of two sets, which are supported horizontally and horizontally within the secondary crushing chamber. Each secondary crushing blade assembly comprises a blade shaft and multiple sets of blades evenly distributed and fixed on the upper end of the blade shaft along the axial direction. The rear ends of the blade shafts of the two sets of secondary crushing blade assemblies are connected by a belt drive mechanism. The front end of the blade shaft of one of the secondary crushing blade assemblies is the power input end, which is connected to the secondary drive motor through the secondary transmission mechanism. The secondary screen is fixed below the two sets of secondary crushing blades in the secondary crushing chamber with the left end higher than the right end. On the right side wall of the secondary crushing chamber, a waste outlet is provided at the position corresponding to the lower end of the secondary screen.

6. The high-efficiency walnut shell crusher according to claim 1, characterized in that: The secondary feed inlet consists of an upper square cone-shaped feed inlet section and a lower right-inclined square cylindrical feed inlet section, which conveys the granular material output from the screening to the secondary crushing chamber.

7. The high-efficiency walnut shell crusher according to claim 1, characterized in that: The automatic waste recycling mechanism includes a receiving hopper, a receiving hopper support, a lifting guide frame, and a lifting drive mechanism. The lifting guide frame consists of a base plate and two identical guide rails vertically fixed to the base plate. The base plate is fixedly connected to the extended support platform on the right side of the frame. The two guide rails are arranged parallel to each other, each consisting of a lower vertical guide rail section, an upper horizontal guide rail section, and an arc transition connecting section. The height of the upper horizontal guide rail section is higher than the screen plate. Guide grooves with the same shape as the guide rails are provided on opposite sides of the two guide rails. The receiving hopper support is a square frame support with a widened mounting plate at its upper end for fixing the receiving hopper. The receiving hopper support has [missing information - likely referring to a specific feature or feature] on its front and rear side frames. The receiving hopper bracket has two extended upper support arms at its ends, each connected to a first roller. The two first rollers are slidably fitted into guide grooves on the front and rear guide rails. The receiving hopper bracket has extended lower support arms on its front and rear side frames near the lower end. Each of the two lower support arms is connected to a set of traveling wheels, which move vertically and vertically to guide the two guide grooves. One set of traveling wheels is connected to a lifting drive mechanism. The receiving hopper is in the form of a scoop, fixed to the mounting plate on the upper end of the receiving hopper bracket with its opening side facing left. Opposite laser sensors are installed on the front and rear side frames of the receiving hopper to monitor the amount of material received within the hopper.

8. The high-efficiency walnut shell crusher according to claim 7, characterized in that: Both sets of walking wheel sets consist of a second roller, a third roller, a roller mounting plate, and a connecting arm. The second roller and the third roller are rotatably mounted on the same side of the roller mounting plate via their respective axles and can be slidably embedded into the corresponding guide grooves. The upper end of the connecting arm is rotatably connected to the inner end of the lower support arm via a pin, and the lower end of the connecting arm is rotatably connected to the roller mounting plate via a pin.

9. The high-efficiency walnut shell crusher according to claim 7, characterized in that: The lifting drive mechanism includes a lifting drive motor, a lifting drive wheel, a lifting driven wheel, and a lifting transmission belt. The lifting drive motor is fixedly mounted on the base plate of the lifting guide frame. The lifting drive wheel is mounted on the output end of the lifting drive motor. The lifting driven wheel is positioned above the lifting drive wheel. The lifting driven wheel is mounted on the driven wheel bracket via a bearing seat. The driven wheel bracket is fixedly connected to the lower end of the upper transverse guide rail section of one side guide rail. The lifting transmission belt is connected to the connecting arm of the nearby walking wheel assembly via a connecting plate. When the first roller, the second roller, and the third roller are all located in the vertical guide groove, the receiving hopper is horizontally positioned. When the first roller moves to the horizontal guide groove, while the second roller and the third roller are both located in the vertical guide groove, the receiving hopper moves as a whole to above the screen plate, and the receiving hopper flips from left to right, thus pouring the recovered granular material in the receiving hopper onto the screen plate.

10. The high-efficiency walnut shell crusher according to claim 1, characterized in that: Symmetrically fixed outward-extending curved plates are fixed on both sides of the waste outlet. Vertical sliding grooves are provided on the right ends of the two curved plates, and adjustable baffle plates are installed in the vertical sliding grooves. A bottom support plate is connected between the two outward-extending curved plates, and the left end of the bottom support plate is connected to the right end of the secondary screen. An upper limit plate is fixedly installed at the upper end of the vertical sliding grooves on both sides to limit the upward movement of the baffle plates. Two spring hinges with opposite directions are installed at the front and rear of the discharge end of the receiving hopper. During the upward movement of the receiving hopper, one spring hinge pushes the baffle plate to the upper working position, simultaneously closing the waste outlet. When the receiving hopper descends, the other spring hinge pushes the baffle plate to the lower working position, opening the waste outlet for receiving.

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