Convenient-to-replace tooth roller of heavy roller type screening machine

Abstract

The utility model discloses a heavy roller type screening machine tooth roller capable of being replaced conveniently, which comprises a roller shaft, a roller sleeve is sleeved on the roller shaft, a plurality of clamping grooves are arranged on the roller sleeve in the circumferential direction, and a plurality of wear-resistant roller skins are sequentially clamped in the clamping grooves to form roller teeth. According to the tooth roller, the roller sleeve is designed to be separated from the roller leather, and a plurality of groups of roller leather are clamped into the roller sleeve for mounting, so that the roller leather can be conveniently replaced; the service life of the tooth roller is greatly prolonged, and the downtime caused by replacement of the tooth roller is reduced, so that the production efficiency and the service life of the heavy roller type screening machine are improved, and the labor intensity of workers and the production and operation cost of the heavy roller type screening machine are reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of roller screening machines, and specifically relates to a toothed roller that can be easily replaced in a heavy-duty roller screening machine. Background Technology

[0002] In the building materials and construction waste treatment industry, heavy-duty roller screens are widely used to separate mixed soil and rock, soil, fine powder, and materials of different particle sizes, and then classify, crush, and screen them for reuse.

[0003] Heavy-duty roller screens are commonly used for screening coarse materials. They are widely used for screening various materials such as mud, construction waste, slag, mine materials, and stone-soil mixtures, and are less prone to clogging.

[0004] The heavy-duty roller screen consists of the following components: housing, housing liner, bearing housing, chain, sprocket, roller shaft, roller sleeve, speed-regulating motor, and support frame.

[0005] Heavy-duty roller screens typically have multiple toothed rollers mounted on each roller shaft. The size of the toothed rollers determines the size of the material separated and the output of the heavy-duty roller screen. Therefore, the toothed rollers on the roller shafts of heavy-duty roller screens are critical working parts. As the heavy-duty roller screen operates for extended periods, the teeth on the rollers will continuously wear down. Currently, the teeth on the toothed rollers and the roller sleeves are manufactured as a single piece. When the teeth on the rollers are severely worn, new toothed rollers must be replaced. Replacing toothed rollers is a time-consuming and labor-intensive task, requiring the equipment to be shut down for several days. This involves dismantling dozens of roller shafts and numerous bearings from the entire machine before installing new toothed rollers, wasting both time and the amount of toothed rollers used. Summary of the Invention

[0006] This invention provides a replaceable toothed roller for a heavy-duty roller screen. By separating the toothed roller into two parts—the roller teeth and the roller sleeve—the roller teeth can be replaced directly when worn, without replacing the roller sleeve, thus reducing downtime caused by toothed roller replacement. It is suitable for heavy-duty roller screens with increasingly larger overall dimensions.

[0007] The objective of this utility model is achieved through the following means:

[0008] A replaceable toothed roller for a heavy-duty roller screen includes a roller shaft, a roller sleeve fitted on the roller shaft, and several grooves arranged circumferentially on the roller sleeve. Several wear-resistant roller skins are sequentially engaged in the grooves to form roller teeth.

[0009] The aforementioned heavy-duty roller screen has a replaceable toothed roller. The wear-resistant roller skin includes a first wear-resistant roller skin at both ends of the roller shaft and several second wear-resistant roller skins in the middle. After the several second wear-resistant roller skins are engaged into the roller sleeve, the two ends of the roller sleeve are respectively engaged into the first wear-resistant roller skins. The center of the first wear-resistant roller skin is provided with an inner bolt hole, and the bolts fix the first wear-resistant roller skin and the roller sleeve together.

[0010] The toothed rollers of the aforementioned heavy-duty roller screen can be easily replaced, and the bolts are hexagonal internal connection bolts.

[0011] The toothed rollers of the aforementioned heavy-duty roller screen can be easily replaced. The groove is a dovetail groove, and a dovetail-shaped locking post is provided at the center of the bottom of the wear-resistant roller skin.

[0012] The toothed rollers of the aforementioned heavy-duty roller screen can be easily replaced. The grooves are arranged in 4-6 rows, and the corresponding roller skins are also arranged in 4-6 rows. Each row of roller skins consists of first roller skins at both ends and several second roller skins in the middle.

[0013] The toothed rollers of the aforementioned heavy-duty roller screen can be easily replaced, and the roller skin is made of high wear-resistant alloy high manganese steel.

[0014] Compared with the prior art, the present invention has the following technical effects:

[0015] This invention designs the toothed roller with a separate roller sleeve and roller skin, and uses several sets of roller skins to be fitted into the roller sleeve for installation. This makes it very convenient to replace the roller skin, greatly improves the service life of the toothed roller, reduces downtime due to toothed roller replacement, thereby improving the production efficiency and service life of the heavy-duty roller screen, and reducing the labor intensity of workers and the production and operation costs of the heavy-duty roller screen. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the combination of the roller shaft and roller sleeve of this utility model.

[0018] Figure 3 for Figure 1 Sectional view of AA.

[0019] Figure 4 for Figure 1 BB section view. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0024] The specific structure of this utility model is combined with the appendix. Figures 1-4 Describe it in detail.

[0025] like Figure 1 and Figure 2 As shown, a replaceable toothed roller for a heavy-duty roller screen includes a roller shaft 1, a roller sleeve 2 fitted onto the roller shaft, and several grooves 3 circumferentially arranged on the roller sleeve. Several wear-resistant roller skins are sequentially engaged in the grooves to form roller teeth. This invention improves upon the traditional cast-iron toothed roller of a raw roller screen by combining the roller sleeve and roller skin. The roller sleeve is machined as a single piece and is intended for long-term use, only requiring replacement if the grooves on it become severely worn and unable to hold the roller skins.

[0026] The heavy-duty roller screen of this utility model features easily replaceable toothed rollers, such as... Figure 1 , Figure 3 and Figure 4 As shown, the wear-resistant roller skin includes first wear-resistant roller skins 7 at both ends of the roller shaft and several second wear-resistant roller skins 8 in the middle. After the several second wear-resistant roller skins are engaged into the roller sleeve, the two ends of the roller sleeve are respectively engaged into the first wear-resistant roller skins. The center of the first wear-resistant roller skin is provided with an inner bolt hole, and the bolts fix the first wear-resistant roller skin and the roller sleeve together.

[0027] The heavy-duty roller screen of this utility model has a replaceable toothed roller, and the bolt is an internal hexagonal connecting bolt 6.

[0028] The heavy-duty roller screen of this utility model has a replaceable toothed roller, and the groove is a dovetail groove, with a dovetail-shaped locking post set at the center of the bottom of the wear-resistant roller skin.

[0029] The heavy-duty roller screen of this utility model has a replaceable toothed roller with 4-6 rows of slots and 4-6 rows of corresponding roller skins. Each row of roller skins consists of first roller skins at both ends and several second roller skins in the middle.

[0030] The heavy-duty roller screen of this utility model has a replaceable toothed roller, the roller skin of which is made of high wear-resistant alloy high manganese steel.

[0031] The roller skins of this invention are easily replaceable consumable parts. Multiple sets of roller skins are sequentially installed on each roller sleeve. To facilitate replacement, the first roller skins at both ends of each roller shaft are fixed to the roller sleeve using high-strength bolts. This allows for direct replacement of the roller skins when the teeth on them wear down, without needing to disassemble the entire roller sleeve on the roller shaft. Only the first roller skins and several second roller skins need to be replaced. The replacement method is as follows: First, replace the first roller skins facing upwards on the same roller shaft. Remove the first roller skins fixed at both ends with bolts. Then, sequentially remove the multiple sets of second roller skins fixed with dovetail grooves from both ends, one by one, from the dovetail grooves on both sides. Next, install the new multiple sets of second roller skins fixed with dovetail grooves into the grooves sequentially. Finally, insert the two first roller skins fixed with bolts at both ends into the two ends and tighten them with bolts. This completes the installation of one row. Rotate the roller shaft, and then replace the first roller skin and the second roller skin of the other row in sequence, until all the first roller skins and the second roller skins that need to be replaced on the entire heavy-duty roller screen are replaced. This will form a complete replaced toothed roller, and the machine can be started for trial production.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A replaceable toothed roller for heavy-duty roller sifting machines, comprising a roller shaft (1), characterized in that: The sleeve (2) is sleeved on the roller shaft, a plurality of clamping grooves (3) are arranged on the sleeve in the circumferential direction, and a plurality of wear-resistant roller skins (4) are clamped in the clamping grooves in sequence to form roller teeth, the wear-resistant roller skins include first wear-resistant roller skins at both ends of the roller shaft and a plurality of second wear-resistant roller skins in the middle, after the plurality of second wear-resistant roller skins are clamped into the sleeve, the first wear-resistant roller skins are clamped into the sleeve at both ends, respectively, the first wear-resistant roller skins are provided with inner bolt holes at the centers, and bolts fix the first wear-resistant roller skins and the sleeve together.

2. The replaceable tooth roll of a heavy-duty sizer according to claim 1, wherein: The bolt is an inner hexagonal connecting bolt (6).

3. The replaceable tooth roll of a heavy-duty sizer according to claim 2, wherein: The clamping groove is a dovetail clamping groove, and a dovetail-shaped clamping column is arranged at the central position of the bottom of the wear-resistant roller skin.

4. The replaceable tooth roll of a heavy-duty sizer according to claim 1, wherein: The clamping grooves are 4-6 rows, and the corresponding roller skins are also 4-6 rows, and each row of roller skins is composed of first roller skins at both ends and a plurality of second roller skins in the middle.

5. The replaceable tooth roll of a heavy-duty sizer according to claim 1, wherein: The roller skin is a high wear-resistant high manganese steel roller skin.

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