A structure for preventing blockage in the negative pressure suction pipe of a self-priming toothed crusher

Abstract

This utility model proposes an anti-clogging structure for the negative pressure suction pipe of a self-priming toothed claw crusher. It includes a crusher body with a suction pipe mounted on it. A sleeve is slidably fitted over the feed end of the suction pipe. An auxiliary through-hole is provided on the wall of the sleeve at the feed end. A telescopic mechanism connected to the sleeve and driving the sleeve to reciprocate is provided on the suction pipe. An outer pipe is rotatably fitted over the lower middle part of the sleeve via a sealed bearing. The bottom end of the outer pipe is flush with the sleeve and has an auxiliary through-hole corresponding to it. A driving structure connected to the outer pipe is provided in the upper middle part of the sleeve, driving the outer pipe to rotate around the sleeve. The sleeve limits the depth and thickness of material accumulation around the suction port. The outer pipe, along with the sleeve, has auxiliary through-holes that are staggered, overlapping, or partially overlapping, allowing for the closing, opening, or partial opening of the auxiliary through-holes in the sleeve. This facilitates adjustment of the material intake at the feed port, improving feeding efficiency while preventing clogging.

Description

Technical Field

[0001] This utility model relates to the field of paint residue recycling technology, specifically to an anti-clogging structure for the negative pressure suction pipe of a self-priming toothed claw crusher. Background Technology

[0002] How to properly dispose of paint sludge is a pressing issue. To address this, our company has designed and manufactured a process and equipment specifically for the recycling and utilization of paint sludge. We have applied for and been granted a utility model patent with patent number 202121987625.3, entitled "Anti-clogging Structure for the Suction Pipe of a Self-Suctioning Toothed Claw Crusher." This utility model proposes an anti-clogging structure for the suction pipe of a self-suctioning toothed claw crusher, including a crusher housing. The crusher housing is equipped with a suction pipe and a discharge pipe. A sleeve is fitted over the suction pipe, with the end of the sleeve extending beyond the end of the suction pipe. A gap is left between the inner wall of the sleeve and the suction pipe. An emergency air inlet is provided above the sleeve on the suction pipe. This invention features a sleeve fitted over the outside of the suction pipe to limit the depth and thickness of material accumulation around the suction port, preventing blockage due to excessive material buildup. A gap is left between the suction pipe and the sleeve, allowing air to enter the suction pipe and blow material from the gap into the suction pipe, ensuring stable and smooth air and material intake, thus guaranteeing the stability of subsequent paint sludge treatment processes. An emergency air intake window is provided on the suction pipe, which can be opened in emergencies to prevent damage to the drive motor of the toothed claw crusher due to overload after the suction pipe becomes blocked.

[0003] During actual use of this device, our company found that the sleeve cannot move up and down, and the height difference between the suction pipe and the lower end of the sleeve cannot be adjusted. Although this can prevent the drive motor from being damaged due to overload, the suction pipe has poor flowability for some different types of paint residue materials, which sometimes prevents the material from flowing from the bottom of the sleeve to the suction range of the suction pipe in time, thus affecting the feeding efficiency of the crusher. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a self-priming toothed claw crusher negative pressure suction pipe anti-clogging structure, which can make the material feeding through the suction pipe smoother and improve the feeding efficiency while preventing clogging.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a self-priming toothed claw crusher negative pressure suction pipe anti-clogging structure, comprising a crusher body, a suction pipe provided on the crusher body, a sleeve fitted on the feed end of the suction pipe, a gap between the inner wall of the sleeve and the suction pipe, an auxiliary through hole provided on the pipe wall of the feed end of the sleeve, a telescopic mechanism provided on the suction pipe connected to the sleeve and driving the sleeve to reciprocate, an outer pipe rotatably fitted on the lower middle part of the sleeve through a sealed bearing, the bottom end of the outer pipe being flush with the sleeve and an auxiliary through hole corresponding to the auxiliary through hole, and a driving structure provided on the upper middle part of the sleeve connected to the outer pipe to drive the outer pipe to rotate around the sleeve.

[0006] Furthermore, the telescopic mechanism includes two guide rods fixed to the upper end of the sleeve. The two guide rods are symmetrically arranged with the axis of the sleeve as the center. Two guide sleeves are provided on the outer wall of the suction pipe at positions corresponding to the guide rods. The two guide rods are respectively inserted into the two guide sleeves. A locking screw is screwed onto the outer wall of the guide sleeve. The end of the locking screw passes through the guide sleeve and can press against the guide rod to fix the guide rod.

[0007] Furthermore, the drive structure includes a geared motor, a drive gear, and a driven gear ring. The geared motor is located on the upper section of the sleeve, the drive gear is mounted on the output shaft of the geared motor, and the driven gear ring is fitted on the outer side of the upper end of the outer tube. The drive gear meshes with the driven gear ring. The dustproof enclosure isolates and encapsulates the drive mechanism from the outside to prevent foreign objects from entering the interior and affecting the operation of the drive structure.

[0008] Furthermore, the auxiliary through holes are elongated holes, and multiple elongated holes are arranged at equal intervals along the circumference of the sleeve and the outer tube.

[0009] Furthermore, there are two sealed bearings, located at the top and middle of the inner wall of the outer tube, respectively.

[0010] The beneficial effects of this utility model are as follows: This utility model has a sleeve that can move up and down around the suction pipe, which can limit the depth and thickness of the material accumulated around the suction port. Airflow can enter through the gap between the sleeve and the suction pipe, preventing the suction port from being blocked by too much material accumulation, which would prevent airflow from entering and damage the blower. A rotatable outer tube is set outside the sleeve. Both the outer tube and the sleeve are provided with auxiliary through holes. By rotating the outer tube, the auxiliary through holes of the outer tube and the sleeve can be staggered, overlapped or partially overlapped, which can realize the closing, opening or partial opening of the auxiliary through holes of the sleeve, making it convenient to adjust the amount of material entering at the feed port, and improving the feeding efficiency while preventing blockage. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the existing technology; Figure 2 This is an assembly perspective view of the present invention; Figure 3 This is a schematic diagram of the overall design of this utility model; Figure 4 This is a detailed schematic diagram of the present invention; Figure 5 This is a detailed schematic diagram of the present invention.

[0013] The figure shows: 1. Suction pipe; 2. Sleeve; 3. Auxiliary through hole; 4. Telescopic mechanism; 401. Guide rod; 402. Guide sleeve; 403. Locking screw; 5. Outer tube; 6. Drive structure; 601. Gear motor; 602. Drive gear; 603. Driven gear ring. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figures 1 to 5 The diagram shows a self-priming toothed claw crusher negative pressure suction pipe anti-clogging structure, including a crusher body, a suction pipe 1 on the crusher body, a sleeve 2 fitted on the feed end of the suction pipe 1, a gap between the inner wall of the sleeve 2 and the suction pipe 1, an auxiliary through hole 3 on the wall of the feed end of the sleeve 2, a telescopic mechanism 4 on the suction pipe 1 connected to the sleeve 2 and driving the sleeve 2 to reciprocate so that the lower end of the sleeve 2 moves up and down within a certain range above and below the opening of the suction pipe 1, an outer pipe 5 is rotatably fitted on the middle and lower part of the sleeve 2 through a sealed bearing, the bottom end of the outer pipe 5 is flush with the sleeve 2 and the auxiliary through hole 3 is set corresponding to the auxiliary through hole 3, a driving structure 6 is provided on the middle and upper part of the sleeve 2 and connected to the outer pipe 5 to drive the outer pipe 5 to rotate around the sleeve 2.

[0016] A movable sleeve 2 is fitted around the outside of the suction pipe 1 to limit the depth and thickness of material accumulation around the suction port, preventing the suction port from becoming blocked due to excessive material accumulation, which could cause the blower motor to break down. A rotatable outer pipe 5 is installed outside the sleeve 2. Both the outer pipe 5 and the sleeve 2 are provided with auxiliary through holes 3. By rotating the outer pipe 5, the auxiliary through holes 3 of the outer pipe 5 and the auxiliary through holes 3 of the sleeve 2 can be staggered, overlapped, or partially overlapped, which can realize the closing, opening, and partial opening of the auxiliary through holes 3 of the sleeve 2, making it convenient to adjust the feed rate of the feed port.

[0017] The telescopic mechanism includes two guide rods 401 fixed to the upper end of the sleeve. The two guide rods 401 are symmetrically arranged with the axis of the sleeve 2 as the center. Two guide sleeves 402 are provided on the outer wall of the suction pipe 1 at positions corresponding to the guide rods 401. The two guide rods 401 are respectively inserted into the two guide sleeves 402. The outer wall of the guide sleeve 402 is provided with a locking screw 403. The end of the locking screw 403 passes through the guide sleeve 402 and can press against the guide rod 401 to tighten and fix the guide rod 401.

[0018] The drive structure 6 includes a geared motor 601, a drive gear 602, and a driven gear ring 603. The geared motor 601 is located on the upper section of the sleeve 2, the drive gear 602 is mounted on the output shaft of the geared motor 601, and the driven gear ring 603 is fitted on the outer side of the upper end of the outer tube 5. The drive gear 602 meshes with the driven gear ring 603.

[0019] By controlling the operation of the geared motor 601, the drive gear 602 drives the driven gear ring 603 to rotate, thereby causing the outer tube 5, which is fixedly connected to the driven gear ring 603, to rotate synchronously. This allows the auxiliary through holes 3 of the outer tube 5 and the auxiliary through holes 3 of the sleeve 2 to be completely offset, overlap, or partially overlap, enabling the closing, opening, and partial opening of the auxiliary through holes of the sleeve 2, facilitating the adjustment of the feed rate at the feed inlet. To prevent dust from adhering to the drive gear 602 and the driven gear ring 603, a dustproof sleeve can be fitted over them. The upper opening of the dustproof sleeve is tied to the outer wall of the sleeve 2, and the lower opening is tied to the outer wall of the outer tube 5 below the driven gear ring 603, but not too tightly, allowing the outer tube 5 and the lower opening of the dustproof sleeve to move relative to each other without affecting the rotation of the outer tube 5. Of course, the dustproof sleeve can be omitted, but the drive gear 602 and the driven gear ring 603 need to be cleaned frequently according to actual usage.

[0020] The auxiliary through hole 3 is designed as an elongated hole, with multiple elongated holes evenly spaced along the circumference of the sleeve 2 and the outer tube 5. As another preferred option, the elongated holes of the auxiliary through hole 3 are located at the bottom ends of the outer tube 5 and the sleeve 2, and can be open, in the shape of a "door".

[0021] There are two sealed bearings, located at the top and middle of the inner wall of the outer tube 5, respectively.

[0022] In use, loosening the two locking screws 403 releases the guide rod 401, allowing the height of the sleeve 2 to be adjusted up and down to regulate the height difference between the lower end of the sleeve 2 and the lower end of the suction pipe 1, thus adapting to the anti-clogging requirements of powder materials with different parameters. Controlling the rotation number and forward / reverse rotation of the reduction motor 601 ensures that the auxiliary through-hole 3 of the outer pipe 5 and the auxiliary through-hole 3 of the sleeve 2 are completely offset, overlap, or partially overlapped. This allows for the closing, opening, and partial opening of the auxiliary through-hole 3, facilitating adjustments to the feed rate at the inlet based on the different flowability of the material. This improves feeding efficiency while preventing clogging.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A structure for preventing blockage of a negative pressure suction pipe in a self-priming toothed claw crusher, comprising a crusher body, a suction pipe provided on the crusher body, a sleeve fitted over the feed end of the suction pipe, and a gap between the inner wall of the sleeve and the suction pipe, characterized in that: The sleeve has an auxiliary through hole on the wall of the feed end. The suction pipe has a telescopic mechanism that is connected to the sleeve and drives the sleeve to move back and forth. The lower middle part of the sleeve is fitted with an outer tube through a sealed bearing. The bottom end of the outer tube is flush with the sleeve and has an auxiliary through hole corresponding to the auxiliary through hole. The upper middle part of the sleeve has a drive structure that is connected to the outer tube and drives the outer tube to rotate around the sleeve.

2. The anti-clogging structure of the negative pressure suction pipe of the self-priming toothed claw crusher according to claim 1, characterized in that: The telescopic mechanism includes two guide rods fixed to the upper end of the sleeve. The two guide rods are symmetrically arranged with the axis of the sleeve as the center. Two guide sleeves are provided on the outer wall of the suction pipe at positions corresponding to the guide rods. The two guide rods are respectively inserted into the two guide sleeves. A locking screw is screwed onto the outer wall of the guide sleeve. The end of the locking screw passes through the guide sleeve and can press against the guide rod.

3. The anti-clogging structure of the negative pressure suction pipe of the self-priming toothed claw crusher according to claim 1, characterized in that: The drive structure includes a geared motor, a drive gear, and a driven gear ring. The geared motor is located on the upper section of the sleeve, the drive gear is mounted on the output shaft of the geared motor, and the driven gear ring is fitted on the outer side of the upper end of the outer tube. The drive gear meshes with the driven gear ring.

4. The anti-clogging structure of the negative pressure suction pipe of the self-priming toothed claw crusher according to claim 1, characterized in that: The auxiliary through holes are elongated holes, and multiple elongated holes are set at equal intervals along the circumference of the sleeve and the outer tube.

5. The anti-clogging structure of the negative pressure suction pipe of the self-priming toothed claw crusher according to claim 1, characterized in that: There are two sealed bearings, located at the top and middle of the inner wall of the outer tube, respectively.

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