External connection rolling sleeve of roll shaft of twin-roll machine

Abstract

The utility model relates to an external connection rolling sleeve of a roll shaft of a roller machine, which comprises a rolling sleeve body, an anti-slip strip in threaded connection with the outer surface of the rolling sleeve body and a connecting plate connected with two sides of the interior of the rolling sleeve body, a shaft hole used for installing the roll shaft is arranged in the center of the connecting plate, and a fastening piece is connected with the outer side of the connecting plate in a matched mode. Lock holes used for being connected with a roll shaft are evenly distributed in the surface of the connecting plate, a sliding hole is formed between every two adjacent lock holes, through holes communicated with the lock holes are formed in the surface of the fastening piece, a sliding column connected with the sliding holes in a sliding mode is arranged between every two adjacent through holes, and the sliding column is sleeved with an elastic piece. The elastic sheet is positioned between the fastening sheet and the connecting plate; the externally-connected rolling sleeve can be installed outside a roller shaft in a double-roller machine, the firmness and stability of connection between the rolling sleeve and the roller shaft are effectively improved, the roller shaft can conveniently and rapidly extrude and crush objects, the problem of slipping possibly occurring in the object extrusion process is effectively solved, and the efficiency and safety of object extrusion and crushing are guaranteed.

Description

Technical Field

[0001] This utility model relates to an external rolling sleeve for a roller shaft of a roller mill. Background Technology

[0002] A double roller mill is a device used for crushing and grinding materials. It features a simple structure and high energy efficiency, and is widely used in industries such as chemical, stone, and building materials to crush various high and medium hard materials. Its working principle involves a motor and reducer driving two rollers to rotate relative to each other at a certain speed, thus crushing the material between the rollers into finer particles. However, prolonged compression and collision between the rollers and hard materials like sand and gravel can easily cause wear and deformation on the roller surface, affecting the roller's service life and subsequent performance. Furthermore, conventional rollers typically use a smooth cylindrical structure, which can easily cause sand and gravel to slip on the roller surface when crushing hard materials, potentially leading to sand and gravel flying out and endangering the safety of production personnel. Utility Model Content

[0003] This utility model mainly solves the technical problems existing in the prior art, thereby providing an external rolling sleeve for the roller shaft of a roller press that is simple in structure, easy to use, and can effectively guarantee the service life of the roller shaft and ensure the safety of the producer.

[0004] This utility model relates to an external roller sleeve for a roller shaft of a roller mill, comprising a roller sleeve body, an anti-slip strip threaded to the outer surface of the roller sleeve body, and connecting plates connected to both sides inside the roller sleeve body. The connecting plates have a shaft hole in the center for mounting the roller shaft, and a fastening plate is fitted to the outer side of the connecting plates. Locking holes for connecting the roller shaft are evenly distributed on the surface of the connecting plates, and a sliding hole is provided between two adjacent locking holes. The fastening plate has a through hole communicating with the locking hole on its surface, and a sliding post is provided between two adjacent through holes and slidably connected to the sliding hole. A spring is sleeved on the outside of the sliding post, and the spring is located between the fastening plate and the connecting plate.

[0005] Preferably, a groove is provided on the outer side of the locking hole, and a pad that cooperates with the groove is connected to the surface of the fastening plate. The pad is wrapped around the outside of the through hole so that the pad under the fastening plate can cooperate with the groove on the outside of the locking hole, so that the roller installed in the center of the connecting plate can be damped and buffered by the fastening plate, thereby improving the firmness and stability of the roller after installation.

[0006] Preferably, a positioning groove is provided between the locking hole directly below the connecting plate and the inner surface of the roller sleeve body, and a connecting groove corresponding to the positioning groove is provided directly below the fastening plate. The connecting groove passes through the fastening plate and is connected to the through hole, so that the connecting groove corresponds to the positioning groove. This makes it convenient for the producer to position the installation angle of the roller shaft through the connecting groove and the positioning groove, so as to ensure the accuracy of the roller shaft installation.

[0007] Preferably, one end of the sliding column passing through the sliding hole is connected to a stop plate, and the spring is arranged around the outside of the sliding column. The spring is a spring, which allows the sliding column to be embedded in the sliding hole and connected by the stop plate. This allows the fastening plate to be fixed in front of the connecting plate through the sliding column, so that the fastening plate is located between the connecting plate and the roller shaft to increase the firmness of the roller shaft connection. The setting of the spring increases the stability of the roller shaft connection and avoids the problem of the fixing screw passing through the lock hole slipping due to possible vibration.

[0008] Preferably, the outer surface of the roller sleeve body is provided with a groove through which the anti-slip strip passes. A limiting rod is connected inside the groove. There are two or more grooves and limiting rods, which are evenly distributed on the outer surface of the roller sleeve body. The anti-slip strip is threaded to the roller sleeve body. The anti-slip strip reduces the slippage of items being broken by the roller sleeve body. At the same time, the limiting rod connected to the groove further prevents the items from slipping, effectively ensuring the efficiency and safety of item breaking.

[0009] Preferably, the inner surface of the roller sleeve body is connected with inner ribs and outer ribs. The inner ribs are located between the two connecting plates, and the outer ribs are located in front of the connecting plates. Both the inner and outer ribs are provided in more than two pieces, so as to increase the overall strength of the roller sleeve body through the inner and outer ribs and avoid the roller sleeve body from being dented or deformed due to the hardness of the broken items.

[0010] Preferably, the connecting plate and the fastening plate are located between the outer rib and the inner rib, and the fastening plate is located between the connecting plate and the outer rib, so that the fastening plate can be limited by the outer rib and the connecting plate, thereby facilitating the installation and fixing of the fastening plate.

[0011] The beneficial effects of this utility model are as follows: The roller sleeve has the characteristics of simple structure and convenient use. Because the roller sleeve body has a shaft hole for mounting the roller shaft in the center, and a locking hole is provided on the surface of the connecting plate inside the roller sleeve body, bolts can be connected to the roller shaft through the locking hole on the surface of the connecting plate. This allows the roller sleeve body to be fitted and fixed to the outer surface of the roller shaft. The roller sleeve body then crushes sand and gravel of different hardness, avoiding the roller shaft directly crushing the items and potentially causing surface deformation or damage, thus effectively improving the service life of the roller shaft. Simultaneously, a fastening plate is provided between the connecting plate and the outer rib, and a pad is connected to the fastening plate for embedding into the slot, allowing the connection stability to be increased by the pad after the bolt is connected through the locking hole. The fastening plate has a sliding pin that slides through a hole on the connecting plate. The outer surface of the sliding pin is equipped with a spring plate, which ensures that the fastening plate has a shock-absorbing and buffering effect on the roller shaft connected to the connecting plate through the locking hole. This further increases the firmness and stability of the roller shaft installed and fixed in the shaft hole. The outer surface of the roller sleeve body is threaded with an anti-slip strip, and the outer surface of the roller sleeve body is provided with a groove that passes through the anti-slip strip. The groove is connected with a limit rod, which effectively increases the gripping force of the roller sleeve body on the items to be crushed. This avoids the situation where items may slip and fly away when crushing items, which may occur with conventional smooth roller shafts. This effectively improves the crushing effect and safety of the roller sleeve body. Attached Figure Description

[0012] 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.

[0013] Figure 1 This is a schematic diagram of the overall structure of the external sleeve of the roller shaft of a roller mill according to the present invention;

[0014] Figure 2 for Figure 1 A schematic diagram of the structure from another direction after the fastening plate has been removed;

[0015] Figure 3 This is a schematic diagram of the structure of the fastening piece in the outer sleeve of the roller shaft of a roller mill according to the present invention. Detailed Implementation

[0016] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0017] like Figures 1 to 3 The external sleeve for a roller shaft of a roller mill shown includes a sleeve body 1, an anti-slip strip 4 threaded to the outer surface of the sleeve body 1, and a connecting plate 2 connected to both sides inside the sleeve body 1. The connecting plate 2 has a shaft hole 25 for mounting the roller shaft in the center. A fastening piece 3 is connected to the outer side of the connecting plate 2. Locking holes 21 for connecting the roller shaft are evenly distributed on the surface of the connecting plate 2, and a sliding hole 23 is provided between two adjacent locking holes 21. The fastening piece 3 has a through hole 31 communicating with the locking hole 21 on the surface, and a sliding column 33 slidably connected to the sliding hole 23 is provided between two adjacent through holes 31. A spring piece 34 is sleeved on the outside of the sliding column 33, and the spring piece 34 is located between the fastening piece 3 and the connecting plate 2.

[0018] A slot 22 is provided on the outer side of the locking hole 21. A pad 32 that cooperates with the slot 22 is connected to the surface of the fastening plate 3. The pad 32 is wrapped around the outside of the through hole 31 so that the pad 32 below the fastening plate 3 cooperates with the slot 22 on the outside of the locking hole 21. This allows the roller installed in the center of the connecting plate 2 to be damped and buffered by the fastening plate 3, thereby improving the firmness and stability of the roller after installation.

[0019] A positioning groove 24 is provided between the locking hole 21 directly below the connecting plate 2 and the inner surface of the roller body 1. A connecting groove 321 corresponding to the positioning groove 24 is provided directly below the fastening plate 3. The connecting groove 321 passes through the fastening plate 3 and is connected to the through hole 31, so that the connecting groove 321 corresponds to the positioning groove 24. This makes it convenient for the producer to position the installation angle of the roller shaft through the connecting groove 321 and the positioning groove 24, so as to ensure the accuracy of the roller shaft installation.

[0020] The sliding column 33 is connected to the abutment plate 35 at one end through the sliding hole 23. The spring piece 34 is arranged around the outside of the sliding column 33. The spring piece 34 is a spring, which allows the sliding column 33 to be embedded in the sliding hole 23 and connected by the abutment plate 35. This allows the fastening piece 3 to be fixed in front of the connecting plate 2 through the sliding column 33. The fastening piece 3 is located between the connecting plate 2 and the roller shaft to increase the firmness of the roller shaft connection. The setting of the spring piece 34 increases the stability of the roller shaft connection and avoids the problem of the fixing screw passing through the locking hole 21 slipping due to possible vibration.

[0021] The outer surface of the roller sleeve body 1 is provided with a groove 14 through which the anti-slip strip 4 passes. A limiting rod 5 is connected inside the groove 14. There are two or more grooves 14 and limiting rods 5, which are evenly distributed on the outer surface of the roller sleeve body 1. The anti-slip strip 4 is threaded to the roller sleeve body 1. The anti-slip strip 4 reduces the slippage of the items being broken by the roller sleeve body 1. At the same time, the limiting rod 5 connected to the groove 14 further prevents the items from slipping, effectively ensuring the efficiency and safety of the item breaking process.

[0022] The inner surface of the roller sleeve body 1 is connected with an inner rib 11 and an outer rib 12. The inner rib 11 is located between two connecting plates 2, and the outer rib 12 is located in front of the connecting plate 2. Both the inner rib 11 and the outer rib 12 are provided in more than two pieces, so as to increase the overall strength of the roller sleeve body 1 through the inner rib 11 and the outer rib 12, and avoid the roller sleeve body 1 from being dented or deformed due to the hardness of the broken items.

[0023] The connecting plate 2 and the fastening plate 3 are located between the outer rib 12 and the inner rib 11. The fastening plate 3 is located between the connecting plate 2 and the outer rib 12, so that the fastening plate 3 can be limited by the outer rib 12 and the connecting plate 2, thereby facilitating the installation and fixing of the fastening plate 3.

[0024] The external sleeve of the roller shaft of the roller mill can install the roller shaft in the shaft hole 25. The end caps on both sides of the roller shaft are respectively embedded into the positioning groove 24 for limiting. The bolt passes through the end caps on both sides of the roller shaft and cooperates with the locking hole 21 in the connecting plate 2. At the same time, the bolt passes through the through hole 31 and the locking hole 21 of the fastening plate 3, and the sliding column 33 in the fastening plate 3 is slidably connected in the sliding hole 23. After the bolt is tightened, the pad 32 in the fastening plate 3 is embedded in the slot 22, and the spring piece 24 on the outside of the sliding column 33 is in a compressed state. Thus, the fastening plate 3 provides shock absorption and anti-loosening protection for the connection between the roller shaft and the sleeve body 1.

[0025] The beneficial effects of this utility model are as follows: The roller sleeve has the characteristics of simple structure and convenient use. Because the roller sleeve body has a shaft hole for mounting the roller shaft in the center, and a locking hole is provided on the surface of the connecting plate inside the roller sleeve body, bolts can be connected to the roller shaft through the locking hole on the surface of the connecting plate. This allows the roller sleeve body to be fitted and fixed to the outer surface of the roller shaft. The roller sleeve body then crushes sand and gravel of different hardness, avoiding the roller shaft directly crushing the items and potentially causing surface deformation or damage, thus effectively improving the service life of the roller shaft. Simultaneously, a fastening plate is provided between the connecting plate and the outer rib, and a pad is connected to the fastening plate for embedding into the slot, allowing the connection stability to be increased by the pad after the bolt is connected through the locking hole. The fastening plate has a sliding pin that slides through a hole on the connecting plate. The outer surface of the sliding pin is equipped with a spring plate, which ensures that the fastening plate has a shock-absorbing and buffering effect on the roller shaft connected to the connecting plate through the locking hole. This further increases the firmness and stability of the roller shaft installed and fixed in the shaft hole. The outer surface of the roller sleeve body is threaded with an anti-slip strip, and the outer surface of the roller sleeve body is provided with a groove that passes through the anti-slip strip. The groove is connected with a limit rod, which effectively increases the gripping force of the roller sleeve body on the items to be crushed. This avoids the situation where items may slip and fly away when crushing items, which may occur with conventional smooth roller shafts. This effectively improves the crushing effect and safety of the roller sleeve body.

[0026] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. An outer sleeve for a roll shaft of a calender, characterized in that: The utility model provides a rolling sleeve body, and anti -skid strip is connected on the outer surface of rolling sleeve body, and the connecting plate is connected in the inside of rolling sleeve body two sides, the central part of connecting plate is provided with the axle hole for installing the roller axle, the outside of connecting plate is connected with the fastening piece in coordination, the surface of connecting plate is evenly distributed with the lock hole for connecting the roller axle, and is provided with the slide hole between adjacent two lock holes, the surface of fastening piece is provided with the through -hole being linked with lock hole, and is provided with the slide column being connected with slide hole slidingly between adjacent two through -holes, the outside of slide column is sleeved with elastic piece, and elastic piece is located between fastening piece and connecting plate.

2. An external roller sleeve for a roll of a calender according to claim 1, characterized in that: The outside of the lock hole is provided with a clamping groove, and the surface of the fastening piece is connected with a pad that cooperates with the clamping groove, and the pad is wrapped outside the through -hole.

3. An outer roller sleeve for a roll of a calender according to claim 1, characterized in that: The lock hole below the connecting plate is provided with a positioning groove between the inner surface of the rolling sleeve body, and the fastening piece below is provided with a communication groove corresponding to the positioning groove, and the communication groove penetrates the fastening piece and communicates with the through -hole.

4. An outer roller sleeve for a roll of a calender according to claim 1, characterized in that: One end of the slide column penetrates the slide hole and is connected with a stop plate, the elastic piece is arranged around the outside of the slide column, and the elastic piece is a spring.

5. An outer roller sleeve for a roll of a calender as defined in claim 1, characterized in that: The outer surface of the rolling sleeve body is provided with a groove penetrating the anti -skid strip, the inside of the groove is connected with a limiting rod, and the groove and the limiting rod are provided with two or more than two and are evenly distributed on the outer surface of the rolling sleeve body.

6. An external roller sleeve for a roll of a calender as defined in claim 1, characterized in that: The inner surface of the rolling sleeve body is connected with an inner rib and an outer rib, the inner rib is located between the two connecting plates, the outer rib is located in front of the connecting plate, and the inner rib and the outer rib are provided with two or more than two.

7. An external roller sleeve for a roll of a calender according to claim 6, characterized in that: The connecting plate and the fastening piece are located between the outer rib and the inner rib, and the fastening piece is located between the connecting plate and the outer rib.

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