Polyurethane blade for one-pass sweeper

Abstract

The polyurethane blade comprises a tool bit, a tool apron is connected into the tool bit in a clamped mode, a rhombic column is connected into the tool apron in a clamped mode, rectangular rods are symmetrically welded to the two ends of the rhombic column, rhombic sleeves are connected to the outer surfaces of the rectangular rods in a sleeved mode, and the rhombic sleeves are connected with the tool apron in a clamped mode. Compared with the prior art, the tool bit fixing device has the advantages that the mode that the tool bit and the tool apron are fixed through a plurality of screws and nuts in the prior art is changed through the extrusion fixing mechanism, the tool bit fixing device is simple in structure and convenient to use, and the tool bit fixing device is convenient to use. The problem that in the prior art, when a plurality of screws are fixed, due to the fact that the rotating distances between the screws and the nuts are inconsistent, installation among the screws, the nuts, the tool bit and the tool apron is not stable is solved, meanwhile, the time needed for installation is shortened, and the installation efficiency is indirectly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of belt sweeper, concretely is a kind of polyurethane blade for one-way sweeper. BACKGROUND

[0002] One-way sweeper, also known as headway sweeper, is generally used to clean the material adhered on the belt at unloading roller, and the contact pressure between sweeper blade and conveyor belt needs to be automatically adjusted during application, so that the stress between blade and running belt is within a certain appropriate range, so that the material is clean and the belt is not damaged;

[0003] The blade of the existing one-way sweeper is mainly made of polyurethane material, which is integrally vulcanized by mold, has smooth scraper surface, good straightness, low friction, high wear resistance and high strength, and has stable scraping effect; it can effectively remove fine particles and wet sticky materials on the residual belt; the pre-pressing pressure regulator ensures the stable contact pressure between the scraper and the belt.

[0004] Therefore, a split polyurethane blade for one-way sweeper is disclosed in Chinese patent with application number 201920235212.6, which can replace part of the worn blade as needed, effectively reduce the use cost and avoid waste of polyurethane blade.

[0005] Although the application meets the user's use demand to some extent, there are still some defects in actual use, and the specific problems are as follows: since the cutter head and the cutter seat are connected by multiple screws, multiple nuts are needed for fixation, resulting in low installation efficiency, and the distance of each nut moving along the outer side of the screw is different, causing instability between the nut, cutter seat, cutter head and screw after installation. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a polyurethane blade for one-way sweeper to solve the problem of instability between the nut, cutter seat, cutter head and screw after installation due to the connection between the cutter head and the cutter seat by multiple screws, which requires multiple nuts for fixation, resulting in low installation efficiency and different distance of each nut moving along the outer side of the screw.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a polyurethane blade for one-way sweeper, comprising a cutter head, a cutter seat is connected inside the cutter head, a rhombic column is connected inside the cutter seat, rectangular rods are symmetrically welded at both ends of the rhombic column, a rhombic sleeve is sleeved on the outer surface of the rectangular rod, a rectangular sleeve is sleeved at one end of the rhombic sleeve located outside the rectangular rod, an extrusion fixing mechanism is installed inside the cutter head, the extrusion fixing mechanism comprises a rectangular strip, a circular column and an extrusion strip.

[0008] The rectangular strip is clamped in the cutter head, and a plurality of circular columns penetrating through the cutter head are fixedly installed at one end of the rectangular strip, and an extrusion strip is clamped between the bottom ends of the circular columns and adhered to the cutter head.

[0009] The extrusion fixing mechanism further comprises a threaded sleeve, a threaded rod and a nut.

[0010] The threaded sleeve is fixedly installed in the cutter head, the threaded rod is connected with the threaded sleeve in the threaded sleeve, and the nut is connected with the threaded rod in a threaded manner.

[0011] Preferably, a boss is fixedly installed at the bottom end of the threaded rod, and the boss is rotatably connected with the extrusion strip.

[0012] Preferably, the number of the threaded sleeves is two, and the interiors of the two threaded sleeves are provided with threads in opposite directions.

[0013] The rectangular rod is internally provided with a connecting and positioning mechanism, and the connecting and positioning mechanism comprises a positioning groove, a clamping groove, a spring rod and an insertion block.

[0014] The top and the bottom of one end of the rectangular rod are provided with the positioning grooves, the inner wall of the rectangular sleeve is symmetrically provided with the clamping grooves, the spring rod is installed at the position of the one end of the rectangular rod in the positioning groove, and the insertion block is fixedly installed at the top end of the spring rod.

[0015] Preferably, the insertion block is L-shaped, and the top end of the insertion block is provided with a chamfer.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] The utility model discloses a extrusion fixing mechanism changes the mode of fixing cutter head and cutter base through multiple screw rods and nuts in the prior art, solves the problem of unstable installation among multiple screw rods, nuts, cutter head and cutter base in the prior art due to the inconsistent rotating interval between multiple screw rods and nuts, reduces the time required during installation, and indirectly improves the installation efficiency.

[0018] The utility model also discloses a connecting and positioning mechanism, which reduces the positioning difficulty between the rectangular sleeve and the rectangular rod, preliminarily fixes the rectangular sleeve and the rectangular rod, and increases the stability between the rectangular sleeve and the rectangular rod. DRAWINGS

[0019] Figure 1 It is a one-way sweeper polyurethane blade overall structure schematic view of the utility model;

[0020] Figure 2 It is an explosion drawing in the one-way sweeper polyurethane blade overall of the utility model;

[0021] Figure 3 It is a structure schematic view of the whole extrusion fixing mechanism of the polyurethane blade for the one-way sweeper.

[0022] Figure 4 It is a structure schematic view of the connecting and positioning mechanism of the polyurethane blade for the one-way sweeper.

[0023] In the figure: 1, tool bit; 2, tool holder; 3, rhombic column; 4, rectangular rod; 5, rhombic sleeve; 6, rectangular sleeve;

[0024] 7, connecting and positioning mechanism; 701, positioning groove; 702, clamping groove; 703, spring rod; 704, plug block;

[0025] 8, extrusion fixing mechanism; 801, rectangular strip; 802, circular column; 803, threaded sleeve; 804, threaded rod; 805, nut; 806, extrusion strip. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0027] Please refer to Figures 1-4 The present application provides a technical solution: a polyurethane blade for a one-way sweeper, which comprises a tool bit 1, the tool bit 1 internally clamped with a tool holder 2, the tool holder 2 internally clamped with a rhombic column 3, the rhombic column 3 having a rectangular rod 4 symmetrically welded at both ends, the rectangular rod 4 externally sleeved with a rhombic sleeve 5, the rhombic sleeve 5 having a rectangular sleeve 6 sleeved at one end outside the position of the rectangular rod 4, the tool bit 1 internally installed with an extrusion fixing mechanism 8, the extrusion fixing mechanism 8 comprising a rectangular strip 801, a circular column 802 and an extrusion strip 806.

[0028] The rectangular strip 801 is clamped inside the tool bit 1, one end of the rectangular strip 801 fixedly installed with a plurality of circular columns 802 penetrating through the tool bit 1, the plurality of circular columns 802 having the extrusion strip 806 clamped between the bottom ends and abutting on the tool bit 1.

[0029] The extrusion fixing mechanism 8 further comprises a threaded sleeve 803, a threaded rod 804 and a nut 805.

[0030] The threaded sleeve 803 is fixedly installed in the cutter head 1, a threaded rod 804 is connected in the threaded sleeve 803 through threads, the number of the threaded sleeves 803 is two, the interiors of the two threaded sleeves 803 are provided with threads and the thread directions are opposite, so that the connection between the threaded sleeve 803 and the threaded rod 804 is more stable, a boss is fixedly installed at the bottom end of the threaded rod 804, the boss and the extrusion strip 806 are rotationally connected, the rotation of the threaded rod 804 is facilitated, the rotation difficulty of the threaded rod 804 is reduced, and the nut 805 is connected on the outer surface of the threaded rod 804 through threads.

[0031] The rectangular rod 4 is internally provided with a connecting and positioning mechanism 7, and the connecting and positioning mechanism 7 comprises a positioning groove 701, a clamping groove 702, a spring rod 703 and an insertion block 704.

[0032] The positioning groove 701 is arranged at the top and the bottom of one end of the rectangular rod 4, the clamping groove 702 is symmetrically arranged on the inner wall of the rectangular sleeve 6, the spring rod 703 is arranged at the position of the positioning groove 701 at one end of the rectangular rod 4, the insertion block 704 is fixedly installed at the top end of the spring rod 703, the insertion block 704 is L-shaped, and a chamfer is arranged at the top end of the insertion block 704, so as to facilitate the pushing of the insertion block 704 and reduce the pushing difficulty of the insertion block 704.

[0033] Working principle: in the actual use process of the device, the user installs the cutter head 1 and the cutter holder 2, then installs the extrusion fixing mechanism 8, at this time the circular column 802 of the rectangular strip 801 penetrates through the cutter head 1 and the cutter holder 2, then the extrusion strip 806 is placed into the cutter head 1, then the threaded rod 804 is synchronously rotated in two directions, the threaded rod 804 moves in the threaded sleeve 803, and drives the extrusion strip 806 to be clamped in the circular column 802, so as to complete the fixation of the circular column 802, then the nut 805 is rotated, the nut 805 moves along the thread direction of the threaded rod 804, so as to extrude and fix the threaded rod 804, and then the extrusion strip 806 is fixed, the fixation mode of the cutter head 1 and the cutter holder 2 by multiple threaded rods and nuts in the prior art is changed, the problem that the multiple threaded rods are not stably installed due to the inconsistent rotation spacing between the multiple threaded rods and nuts in the prior art is solved, the time required for installation is reduced, and the installation efficiency is indirectly improved.

[0034] Then the rhombic column 3 is inserted along the inside of the knife rest 2, then the rectangular sleeve 6 is sleeved outside the rectangular rod 4, and at this time the rhombic sleeve 5 is sleeved outside the rectangular rod 4 and is attached to one end of the rhombic column 3, because the rectangular sleeve 6 is installed first, the plug-in block 704 is compressed, when the clamping groove 702 and the plug-in block 704 are in contact, the tension of the spring rod 703 drives the plug-in block 704 to insert into the clamping groove 702, thereby completing the positioning between the rectangular sleeve 6 and the rectangular rod 4, reducing the positioning difficulty between the rectangular sleeve 6 and the rectangular rod 4, and can preliminarily fix the rectangular sleeve 6 and the rectangular rod 4, increase the stability between the rectangular sleeve 6 and the rectangular rod 4.

[0035] It should be noted that in this document, the terms "first" and "second" and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A polyurethane blade for a sweeper, comprising a blade head (1), a blade holder (2) internally engaged with the blade head (1), a rhomboid column (3) internally engaged with the blade holder (2), rectangular rods (4) symmetrically welded to both ends of the rhomboid column (3), a rhomboid sleeve (5) fitted onto the outer surface of the rectangular rod (4), and a rectangular sleeve (6) fitted onto one end of the rhomboid sleeve (5) at a position outside the rectangular rod (4), characterized in that: The cutter head (1) is internally provided with an extrusion fixing mechanism (8), which comprises a rectangular strip (801), a circular column (802) and an extrusion strip (806); The rectangular strip (801) is clamped in the cutter head (1), and a plurality of circular columns (802) penetrating the cutter head (1) are fixedly installed at one end of the rectangular strip (801), and the extrusion strip (806) clamped between the bottom ends of the plurality of circular columns (802) is attached to the cutter head (1).

2. The polyurethane blade for a one-pass sweeper of claim 1, wherein: The extrusion fixing mechanism (8) further comprises a threaded sleeve (803), a threaded rod (804) and a nut (805); The threaded sleeve (803) is fixedly installed in the cutter head (1), the threaded rod (804) is threadedly connected in the threaded sleeve (803), and the nut (805) is threadedly connected to the outer surface of the threaded rod (804).

3. The polyurethane blade for a one-pass sweeper of claim 2, wherein: The threaded rod (804) is fixedly installed with a boss at the bottom end, and the boss is rotatably connected with the extrusion strip (806).

4. The polyurethane blade for a one-pass sweeper of claim 2, wherein: The number of the threaded sleeves (803) is two, and the interiors of the two threaded sleeves (803) are provided with threads with opposite directions.

5. The polyurethane blade for a one-pass sweeper of claim 1, wherein: The rectangular rod (4) is internally provided with a connecting and positioning mechanism (7), which comprises a positioning groove (701), a clamping groove (702), a spring rod (703) and an insertion block (704); The top and bottom of one end of the rectangular rod (4) are provided with the positioning grooves (701), the inner wall of the rectangular sleeve (6) is symmetrically provided with the clamping grooves (702), the spring rod (703) is installed at the position of the one end of the rectangular rod (4) in the positioning groove (701), and the insertion block (704) is fixedly installed at the top end of the spring rod (703).

6. A polyurethane blade for a one-pass sweeper according to claim 5, wherein: The insertion block (704) is L-shaped, and the top end of the insertion block (704) is provided with a chamfer.

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