Transmission tensioning type tooth roller screening crusher with adjustable spacing

Abstract

The utility model relates to the technical field of crushers, in particular to a transmission tensioning type tooth roller screening crusher with adjustable spacing, which comprises a crushing box and a screening device, the crushing box is provided with a crushing cavity, two crushing rollers are arranged in the crushing cavity, the crushing rollers are rotatably mounted in the crushing cavity through a driving shaft, and the screening device is arranged in the crushing cavity. And a tensioning adjusting mechanism for controlling the two crushing rollers to move is mounted on the crushing box and comprises two sliding seats, a first adjusting screw rod and a second adjusting screw rod. The tensioning adjusting mechanism is arranged on the crushing box and comprises the two sliding seats, the first adjusting screw rod and the second adjusting screw rod, the distance between the two crushing rollers is adjusted through the first adjusting screw rod, and meanwhile the tensioning degree of the synchronous belt is adjusted through the second adjusting screw rod; and therefore, the steps of adjusting the distance between the crushing rollers and adjusting the belt are reduced, the labor intensity of manual adjustment is reduced, and the working efficiency of the crusher is improved.

Description

Technical Field

[0001] This utility model relates specifically to the field of crusher technology, and more specifically to a transmission-tensioned toothed roller screening crusher with adjustable spacing. Background Technology

[0002] Crushers can be broadly categorized into medical crushers and mining crushers. Medical crushers are primarily used for breaking up kidney stones, typically employing methods such as resonance to break the stones and avoid the various risks associated with surgery. Based on their crushing principles, commonly used crushing machinery in heavy mining operations includes jaw crushers, impact crushers, vertical shaft impact crushers, hydraulic cone crushers, ring hammer crushers, hammer crushers, roller crushers, compound crushers, cone crushers, double-stage crushers, gyratory crushers, and mobile crushers.

[0003] In existing technologies, some crushers have crushing rollers mounted on the crusher housing via a rotating shaft. Since the crushing roller shaft cannot move, the spacing between the crushing roller teeth cannot be adjusted or cannot be adjusted quickly, failing to meet the crushing requirements of different types of materials and affecting the crusher's processing efficiency and performance. Furthermore, in other crushers, adjusting the crushing roller spacing requires simultaneously adjusting the tension of the drive belt, which necessitates multiple steps, thus impacting the crusher's operating efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a transmission-tensioned toothed roller screening and crushing machine with adjustable spacing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An adjustable-pitch transmission-tensioned toothed roller screen crusher includes a crushing box and a screening device. The crushing box has a crushing chamber with two crushing rollers inside. The crushing rollers are rotatably mounted inside the crushing chamber via a drive shaft. A tension adjustment mechanism for controlling the movement of the two crushing rollers is installed on the crushing box. The tension adjustment mechanism includes two sliding seats, a first adjusting screw, and a second adjusting screw. The sliding seats are slidably mounted on the crushing box. The drive shaft is rotatably connected to the sliding seats. A first gear is fixedly mounted on the drive shaft on one side, and the first gear meshes with a second gear. The second gear is rotatably mounted on the sliding seat via a rotating shaft, and a pulley is mounted on the rotating shaft. A pulley is also mounted on the drive shaft on the other side, and the two pulleys are connected by a synchronous belt drive.

[0007] As a further embodiment of this utility model: the first adjusting screw and the second adjusting screw are rotatably mounted on the crushing box, and the first adjusting screw and the second adjusting screw are connected by a gearbox transmission; the left and right sides of the first adjusting screw and the second adjusting screw are respectively provided with two kinds of external threads with opposite directions of rotation, and the left and right sides of the first adjusting screw are symmetrically threaded with two first adjusting screw sleeves, and the left and right sides of the second adjusting screw are symmetrically threaded with two second adjusting screw sleeves. The first adjusting screw sleeves and the second adjusting screw sleeves are slidably connected to the crushing box, and the first adjusting screw sleeves are fixedly connected to the sliding seat on the same side. The two second adjusting screw sleeves are arranged on both sides of the synchronous belt, and the side of the second adjusting screw sleeve closest to the synchronous belt is provided with a squeezing wheel.

[0008] As a further improvement of this utility model: a rotary motor is also installed on the crushing box, and the output end of the rotary motor is connected to the first adjusting screw.

[0009] As a further embodiment of this utility model: the screening device includes a frame, a screen and a base plate. The frame is fixedly installed inside the crushing box. The screen is located on the upper part of the frame and the base plate is located on the lower part of the frame. The screen and the base plate are connected by several sliding rods. A vibration spring is sleeved on the rod segment between the frame and the base plate. A vibration motor is installed on the base plate, and an opening for material discharge is also provided on the base plate.

[0010] As a further improvement of this utility model: two collection hoppers are arranged inside the crushing chamber on the left and right sides of the screening device, and an adjustment device for controlling the up and down movement of the collection hoppers is also provided in the inner wall of the crushing box.

[0011] As a further embodiment of this utility model: the adjusting device includes a lifting screw and a lifting sleeve, the lifting sleeve is threadedly connected to the lifting screw, the lifting sleeve is also slidably connected to the inner wall of the crushing box, the lifting sleeve is connected to an arc-shaped slide rail, the arc-shaped slide rail includes a track body and a slider slidably installed in the track body, the slider is connected to one side of the track body through a connecting spring, and the collecting hopper is connected to the slider.

[0012] As a further improvement of this utility model: the crushing chamber is provided with a stop block at the bottom of the collecting hopper, and the stop block is connected to the bottom of the crushing chamber by a spring rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model is equipped with a tension adjustment mechanism in the crushing box. The tension adjustment mechanism includes two sliding seats, a first adjustment screw and a second adjustment screw. The distance between the two crushing rollers is adjusted by the first adjustment screw, while the tension of the synchronous belt is adjusted by the second adjustment screw. This reduces the steps of adjusting the crushing roller distance and belt adjustment, reduces the labor intensity of manual adjustment, and improves the working efficiency of the crusher. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a transmission-tensioned toothed roller screening and crushing machine with adjustable spacing.

[0015] Figure 2 This is a cross-sectional view of a drive-tensioned toothed roller screening and crushing machine with adjustable spacing.

[0016] Figure 3 This is a schematic diagram of the tension adjustment mechanism in a transmission-tensioned toothed roller screening and crushing machine with adjustable spacing.

[0017] Figure 4 This is a schematic diagram of the screening device in a transmission-tensioned toothed roller screen crusher with adjustable spacing.

[0018] Figure 5 for Figure 2 A magnified view of a portion of point A in the middle.

[0019] Figure 6 This is a schematic diagram of the arc-shaped slide rail in a transmission-tensioned toothed roller screening and crushing machine with adjustable spacing.

[0020] In the diagram: 10-Crushing box, 11-Crushing chamber, 12-Limit switch, 13-Adjusting device, 131-Lifting screw sleeve, 132-Lifting screw, 133-Drive motor, 14-Spring rod, 15-Discharge port, 16-Collection hopper, 17-Stop block, 18-Arc-shaped slide rail, 181-Railway body, 182-Slider, 183-Connecting spring, 184-Insertion hole, 20-Feed hopper, 30-Crushing roller, 31-Drive shaft, 32-First gear, 33-Second gear, 34-First adjusting screw, 35-First adjusting screw sleeve, 36-Gearbox, 37-Second adjusting screw, 38-Second adjusting screw sleeve, 39-Synchronous belt, 40-Screwing device, 41-Frame, 42-Screw, 43-Slide rod, 44-Base plate, 45-Vibration spring, 46-Vibration motor, 50-Tension adjustment mechanism, 51-Sliding seat. Detailed Implementation

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Please see Figures 1-6In this embodiment of the present invention, a transmission-tensioned toothed roller screen crusher with adjustable spacing includes a crushing box 10 and a screening device 40. The crushing box 10 has a crushing chamber 11, and two crushing rollers 30 are provided inside the crushing chamber 11. The crushing rollers 30 are rotatably installed inside the crushing chamber 11 via a drive shaft 31, and the two crushing rollers 30 are symmetrically arranged about the central axis of the crushing chamber 11. A feed hopper 20 is installed on the crushing box 10, and the feed hopper 20 is connected to the crushing chamber 11. The material to be crushed is added into the crushing chamber 11 from the feed hopper 20 and falls between the two crushing rollers 30. The two crushing rollers 30 rotate in opposite directions to crush the material. The screening device 40 is located below the crushing rollers 30 and is used to screen the crushed material so that the material that meets the screening requirements is discharged through the discharge port 15 at the bottom of the crushing chamber 11.

[0023] In this embodiment, a tension adjustment mechanism 50 for controlling the movement of two crushing rollers 30 is installed on the crushing box 10. The tension adjustment mechanism 50 includes two sliding seats 51, a first adjusting screw 34, and a second adjusting screw 37. The sliding seats 51 are slidably installed on the crushing box 10. The drive shaft 31 is rotatably connected to the sliding seats 51. A first gear 32 is fixedly installed on the drive shaft 31 on one side. The first gear 32 meshes with a second gear 33. The second gear 33 is rotatably installed on the sliding seat 51 through a rotating shaft, and a pulley is installed on the rotating shaft. A pulley is also installed on the drive shaft 31 on the other side. The two pulleys are connected by a synchronous belt 39. It can be understood that the rotation directions of the drive shafts 31 on both sides are opposite. Specifically, in this embodiment, the drive shafts 31 on both sides rotate toward the middle area of ​​the crusher.

[0024] Furthermore, in this embodiment, the first adjusting screw 34 and the second adjusting screw 37 are rotatably mounted on the crushing box 10, and are connected by a gearbox 36. The first adjusting screw 34 and the second adjusting screw 37 have two types of external threads with opposite directions on their left and right sides, and two first adjusting sleeves 35 are symmetrically threaded on the left and right sides of the first adjusting screw 34, and two second adjusting sleeves 38 are symmetrically threaded on the left and right sides of the second adjusting screw 37. Both the first adjusting sleeves 35 and the second adjusting sleeves 38 are slidably connected to the crushing box 10, and the first adjusting sleeve 35 is fixedly connected to the sliding seat 51 on the same side. The first adjusting screw 38 is located on both sides of the timing belt 39. A pressing wheel is provided on the side of the second adjusting screw 38 closest to the timing belt 39. When the first adjusting screw 34 rotates, it controls the two first adjusting screw sleeves 35 to move towards each other or away from each other, thereby increasing or decreasing the distance between the two sliding seats 51. At the same time, the second adjusting screw 37 controls the two second adjusting screw sleeves 38 to move towards each other or away from each other. When the distance between the two sliding seats 51 increases, the two second adjusting screw sleeves 38 move away from each other, the pressure between the pressing wheel and the timing belt 39 decreases, and the timing belt 39 loosens. When the distance between the two sliding seats 51 decreases, the two second adjusting screw sleeves 38 move towards each other, the pressure between the pressing wheel and the timing belt 39 increases, and the timing belt 39 tightens.

[0025] In addition, in this embodiment of the application, a rotary motor is also installed on the crushing box 10, and the output end of the rotary motor is connected to the first adjusting screw 34 for transmission.

[0026] In this embodiment, the screening device 40 includes a frame 41, a screen 42, and a base plate 44. The frame 41 is fixedly installed inside the crushing box 10. The screen 42 is located on the upper part of the frame 41, and the base plate 44 is located on the lower part of the frame 41. The screen 42 and the base plate 44 are connected by several sliding rods 43. Vibration springs 45 are sleeved on the rod segments of the sliding rods 43 located between the frame 41 and the base plate 44. A vibration motor 46 is installed on the base plate 44, and an opening for material discharge is also provided on the base plate 44. The vibration motor 46 controls the vibration of the base plate 44, which in turn drives the screen 42 to vibrate up and down through the sliding rods 43, so as to screen the material falling on the screen 42.

[0027] Furthermore, in this embodiment, two collection hoppers 16 are arranged on the left and right sides of the screening device 40 inside the crushing chamber 11. An adjusting device 13 for controlling the up-and-down movement of the collection hoppers 16 is also provided in the inner wall of the crushing chamber 10. The adjusting device 13 includes a lifting screw 132 and a lifting sleeve 131. The lifting sleeve 131 is threadedly connected to the lifting screw 132 and slidably connected to the inner wall of the crushing chamber 10. The lifting sleeve 131 is connected to an arc-shaped slide rail 18. The arc-shaped slide rail 18 includes a track body 181 and a slider 182 slidably installed in the track body 181. The slider 182 is connected to one side of the track body 181 via a connecting spring 183. The collection hoppers 16 are connected to the slider 182. In the initial state, the collection hoppers 16 and the screening device 40 are at the same horizontal position. The collection hoppers 16 are used to collect material not found on the screen 42. After the material that meets the screening requirements is collected by the hopper 16, the adjusting device 13 controls the hopper 16 to rise to an angle above the crushing roller 30. Under the gravity of the material inside, the hopper 16 rotates along the arc-shaped slide rail 18 toward the crushing roller 39, pouring the material inside the hopper 16 toward the crushing roller 30, thereby performing secondary crushing of the material. In this embodiment, a limit switch 12 is installed above the crushing chamber 11, and an insertion hole 184 for the limit switch 12 is opened on the arc-shaped slide rail 18. A drive motor 133 is also installed at the bottom of the crushing box 10. The output end of the drive motor 133 is connected to the lifting screw 132. The limit switch 12 is electrically connected to the drive motor 133. After the limit switch 12 is inserted into the insertion hole 184, it controls the drive motor 133 to turn off, so as to prevent the lifting screw 132 from rotating and the hopper 16 from rising further.

[0028] Furthermore, in this embodiment, the crushing chamber 11 is provided with a stop block 17 at the bottom of the collecting hopper 16. The stop block 17 is connected to the bottom of the crushing chamber 11 through a spring rod 14. When the collecting hopper 16 and the screening device 40 are at the same horizontal position, the collecting hopper 16 presses down on the stop block 17, and the spring rod 14 is in a contracted state. After the collecting hopper 16 rises, the spring rod 14 resets and drives the stop block 17 to rise, using the stop block 17 to block the material from falling on both sides of the screening device 40.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A transmission-tensioned toothed roller screening and crushing machine with adjustable spacing, characterized in that, The device includes a crushing box (10) and a screening device (40). The crushing box (10) has a crushing chamber (11), and two crushing rollers (30) are installed inside the crushing chamber (11). The crushing rollers (30) are rotatably mounted inside the crushing chamber (11) via a drive shaft (31). The crushing box (10) is equipped with a tension adjustment mechanism (50) for controlling the movement of the two crushing rollers (30). The tension adjustment mechanism (50) includes two sliding seats (51), a first adjusting screw (34), and a second adjusting screw (35). 7) The sliding seat (51) is slidably mounted on the crushing box (10). The drive shaft (31) is rotatably connected to the sliding seat (51). A first gear (32) is fixedly mounted on the drive shaft (31) on one side. The first gear (32) meshes with the second gear (33). The second gear (33) is rotatably mounted on the sliding seat (51) through a rotating shaft. A pulley is mounted on the rotating shaft. A pulley is also mounted on the drive shaft (31) on the other side. The two pulleys are connected by a synchronous belt (39).

2. The adjustable-pitch transmission tension toothed roller screening and crushing machine according to claim 1, characterized in that, The first adjusting screw (34) and the second adjusting screw (37) are rotatably mounted on the crushing box (10). The first adjusting screw (34) and the second adjusting screw (37) are connected by a gearbox (36). The left and right sides of the first adjusting screw (34) and the second adjusting screw (37) are respectively provided with two kinds of external threads with opposite directions of rotation. The left and right sides of the first adjusting screw (34) are symmetrically connected with two first adjusting screw sleeves (35). The left and right sides of the second adjusting screw (37) are symmetrically connected with two second adjusting screw sleeves (38). The first adjusting screw sleeves (35) and the second adjusting screw sleeves (38) are slidably connected to the crushing box (10). The first adjusting screw sleeves (35) are fixedly connected to the sliding seat (51) on the same side. The two second adjusting screw sleeves (38) are set on both sides of the synchronous belt (39). The side of the second adjusting screw sleeves (38) close to the synchronous belt (39) is provided with a squeezing wheel.

3. The adjustable-pitch transmission tension toothed roller screening and crushing machine according to claim 2, characterized in that, The crushing box (10) is also equipped with a rotating motor, the output end of which is connected to the first adjusting screw (34) in a transmission connection.

4. The adjustable-pitch transmission tension toothed roller screening and crushing machine according to claim 1, characterized in that, The screening device (40) includes a frame (41), a screen (42), and a base plate (44). The frame (41) is fixedly installed inside the crushing box (10). The screen (42) is located on the upper part of the frame (41), and the base plate (44) is located on the lower part of the frame (41). The screen (42) and the base plate (44) are connected by several sliding rods (43). Vibration springs (45) are sleeved on the rod segments of the sliding rods (43) located between the frame (41) and the base plate (44). A vibration motor (46) is installed on the base plate (44), and an opening for material discharge is also provided on the base plate (44).

5. The adjustable-pitch transmission tension toothed roller screening and crushing machine according to claim 4, characterized in that, The crushing chamber (11) is equipped with two collection hoppers (16) located on the left and right sides of the screening device (40). The inner wall of the crushing box (10) is also equipped with an adjustment device (13) to control the up and down movement of the collection hoppers (16).

6. The adjustable-pitch transmission tension toothed roller screening and crushing machine according to claim 5, characterized in that, The adjusting device (13) includes a lifting screw (132) and a lifting sleeve (131). The lifting sleeve (131) is threadedly connected to the lifting screw (132). The lifting sleeve (131) is also slidably connected to the inner wall of the crushing box (10). The lifting sleeve (131) is connected to an arc-shaped slide rail (18). The arc-shaped slide rail (18) includes a track body (181) and a slider (182) slidably installed in the track body (181). The slider (182) is connected to one side of the track body (181) through a connecting spring (183). The collecting hopper (16) is connected to the slider (182).

7. The adjustable-pitch transmission tension toothed roller screening and crushing machine according to claim 6, characterized in that, The crushing chamber (11) is located at the bottom of the collecting hopper (16) and is provided with a stop block (17). The stop block (17) is connected to the bottom of the crushing chamber (11) through a spring rod (14).

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