Rod mill entry and exit liner device

Abstract

The utility model belongs to the field of bar mill, specifically disclose a bar mill in and out lining plate device for solving the fastening structure in the prior art device, it is usually exposed to the outside environment after use, the problem of easy rusting condition, specifically including lining plate main part, the middle of lining plate main part is provided with middle slot, the inboard fixed coupling of middle slot has two groups of fixed plate, is provided with rotating handle between two groups of fixed plate, the both ends of rotating handle are provided with first screw rod and second screw rod respectively, the ball nut is all sleeved on first screw rod and second screw rod, the periphery of ball nut is connected with moving plate, the fixed connection of moving plate is provided with protection plate, the through -going opening is set up on the lining plate main part, the both sides of the bottom of through -going opening are provided with fastening bolt, can avoid the fastening bolt on its rusting condition because of the influence of external environment after in and out lining plate installation, ensure the installation stability of in and out lining plate.

Description

Technical Field

[0001] This utility model relates to the field of rod mills, and in particular to a rod mill inlet and outlet liner device. Background Technology

[0002] The rod mill inlet and outlet liner system is one of the core components of a rod mill. Specifically, it refers to the key inner lining structure installed inside the feed and discharge ends of the mill to protect the end caps of the cylinder from direct impact and abrasion by the grinding media and materials, while also controlling the material flow direction. This system is not a single component, but a complex engineering project consisting of various specialized liners, fasteners, and sealing elements. Its design and performance directly affect the mill's operating efficiency, maintenance costs, and service life.

[0003] In the prior art, rod mills require a liner inlet / outlet device during operation. According to the contents of Chinese utility model patent with patent publication number CN215140546U, the fastening structure inside the device is usually exposed to the external environment after use and is prone to corrosion, which urgently needs to be improved.

[0004] To address the aforementioned technical deficiencies, a solution is proposed that prevents the fastening bolts on the inlet and outlet liner from corroding due to external environmental factors after installation, thus ensuring the installation stability of the inlet and outlet liner. Utility Model Content

[0005] The purpose of this invention is to provide a rod mill inlet / outlet liner device to solve the aforementioned problems.

[0006] The purpose of this utility model can be achieved through the following technical solution: a rod mill inlet and outlet liner device, including a liner body, a central slot is provided in the middle of the liner body, two sets of fixing plates are fixedly connected to the inner side of the central slot, a rotating handle is provided between the two sets of fixing plates, a first screw and a second screw are respectively provided at both ends of the rotating handle, ball nuts are sleeved on the first screw and the second screw, a moving plate is snapped around the ball nuts, and a protective plate is snapped onto the moving plate;

[0007] The liner body has a through opening, and fastening bolts are installed on both sides of the bottom of the through opening. The liner body also has mounting openings on both sides.

[0008] Preferably, the ends of the first screw and the second screw are respectively fixedly connected to a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate are respectively provided with a first locking hole and a second locking hole, and the rotating handle is provided with a connecting port and a first locking bolt.

[0009] Preferably, both the first connecting plate and the second connecting plate are located inside the connection port, and the first latch is engaged with the first connecting plate and the second connecting plate through the first latching hole and the second latching hole, respectively.

[0010] Preferably, sealing blocks are provided at both ends of the opening, a third locking hole is provided through the sealing block, and a second locking bolt is provided through both sides of the liner body, and the second locking bolt is engaged with the sealing block through the third locking hole.

[0011] Preferably, the external threads of the first screw and the second screw are symmetrically arranged, and the first screw and the second screw are respectively threadedly connected to two sets of ball nuts.

[0012] Preferably, the movable plate is located inside the opening, and the two sets of movable plates are symmetrically arranged about the rotating handle.

[0013] Preferably, the fastening bolt is located directly below the mounting opening, and the end of the protective plate matches the mounting opening.

[0014] The beneficial effects of this utility model are:

[0015] (1) After the fastening bolts pass through the liner plate, the rotating handle inside the middle slot is rotated to drive the first screw and the second screw to rotate together. This drives the two sets of moving plates to move relative to each other along the opening through the symmetrical external thread and ball nut, and then drives the two sets of protective plates to move relative to each other until the end of the protective plate covers the upper side of the fastening bolt and seals the installation opening. This can prevent the fastening bolts on the liner plate from rusting due to the influence of the external environment after the liner plate is installed, thus ensuring the installation stability of the liner plate.

[0016] (2) First, the sealing block is moved out of the end of the opening by the cooperation of the second bolt and the third hole. Then, the first bolt is removed from the rotating handle until the first connecting plate and the second connecting plate are removed from the inside of the connection port. Thus, the protective plate is moved out of the inside of the opening and the rotating handle is taken out from the inside of the middle slot, realizing the step-by-step dismantling function of the protective structure so as to carry out its inspection and maintenance. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings;

[0018] Figure 1 This is a three-dimensional structural view of the entire utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the lining plate in this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure of the movable plate in this utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure of the rotating handle in this utility model;

[0022] Figure 5 This is a schematic diagram of the connection structure between the liner body and the sealing block in this utility model.

[0023] Legend: 1. Liner body; 2. Middle groove; 3. Fixing plate; 4. Rotating handle; 5. First screw; 6. Second screw; 7. Ball nut; 8. Moving plate; 9. Protective plate; 10. Through port; 11. Fastening bolt; 12. Installation port; 13. First connecting plate; 14. Second connecting plate; 15. First locking hole; 16. Second locking hole; 17. Connection port; 18. First locking bolt; 19. Sealing block; 20. Third locking hole; 21. Second locking bolt. Detailed Implementation

[0024] 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.

[0025] Example 1: The application background of this utility model is based on the inlet and outlet liner structure of a rod mill. The fastening structure on the inlet and outlet liner is prone to failure and needs to be improved. The technical solution of this utility model is to solve the problem that the fastening structure in the existing device is usually exposed to the external environment after use and is prone to corrosion.

[0026] Please see Figures 1-5 As shown, this embodiment is a rod mill inlet and outlet liner device, including a liner body 1, a central slot 2 is provided in the middle of the liner body 1, two sets of fixing plates 3 are fixedly connected to the inner side of the central slot 2, a rotating handle 4 is provided between the two sets of fixing plates 3, a first screw 5 and a second screw 6 are respectively provided at both ends of the rotating handle 4, ball nuts 7 are sleeved on the first screw 5 and the second screw 6, a movable plate 8 is snapped around the ball nuts 7, a protective plate 9 is snapped on the movable plate 8, a through opening 10 is provided through the liner body 1, fastening bolts 11 are provided through the bottom two sides of the through opening 10, and installation openings 12 are provided through the two sides of the liner body 1.

[0027] The external threads of the first screw 5 and the second screw 6 are symmetrically arranged, and the first screw 5 and the second screw 6 are respectively threadedly connected to two sets of ball nuts 7. The movable plate 8 is located inside the through-hole 10, and the two sets of movable plates 8 are symmetrically arranged about the rotating handle 4. The two sets of movable plates 8 move relative to each other along the through-hole 10 by the symmetrical first screw 5 and the second screw 6 cooperating with the ball nuts 7.

[0028] The fastening bolt 11 is located directly below the mounting opening 12, and the end of the protective plate 9 matches the mounting opening 12. The liner is installed on the rod mill by fastening the bolt 11.

[0029] Specifically, after the fastening bolt 11 is installed through the liner, the rotating handle 4 inside the middle slot 2 is rotated to drive the first screw 5 and the second screw 6 to rotate together. This causes the two sets of moving plates 8 to move relative to each other along the opening 10 through the symmetrical external thread and ball nut 7, which in turn causes the two sets of protective plates 9 to move relative to each other until the end of the protective plate 9 covers the upper side of the fastening bolt 11 and seals the installation opening 12. This prevents the fastening bolt 11 from rusting due to the influence of the external environment after the liner is installed, ensuring the installation stability of the liner.

[0030] Example 2: Please refer to Figures 1-5 As shown, this embodiment is a rod mill inlet and outlet liner device. The ends of the first screw 5 and the second screw 6 are respectively fixedly connected to the first connecting plate 13 and the second connecting plate 14. The first connecting plate 13 and the second connecting plate 14 are respectively provided with the first locking hole 15 and the second locking hole 16. The rotating handle 4 is provided with the connecting port 17 and the first locking bolt 18 is provided through the rotating handle 4. The first connecting plate 13 and the second connecting plate 14 are both located inside the connecting port 17. The first locking bolt 18 is engaged with the first connecting plate 13 and the second connecting plate 14 through the first locking hole 15 and the second locking hole 16 respectively. The first screw 5 and the second screw 6 are respectively placed at both ends of the rotating handle 4 by the first connecting plate 13 and the second connecting plate 14 cooperating with the connecting port 17.

[0031] Both ends of the opening 10 are provided with sealing blocks 19, and a third locking hole 20 is provided through the sealing block 19. A second locking bolt 21 is provided through both sides of the liner body 1, and the second locking bolt 21 is engaged with the sealing block 19 through the third locking hole 20. The cooperation between the second locking bolt 21 and the third locking hole 20 makes the sealing block 19 tightly installed at the end of the opening 10.

[0032] Specifically, the sealing block 19 is first moved out of the end of the through-hole 10 by the cooperation of the second latch 21 and the third latch hole 20. Then the first latch 18 is removed from the rotating handle 4 until the first connecting plate 13 and the second connecting plate 14 are removed from the inside of the connecting port 17, thereby allowing the protective plate 9 to be removed from the inside of the through-hole 10 and the rotating handle 4 to be removed from the inside of the middle slot 2. This realizes the step-by-step dismantling function of the protective structure so as to carry out its inspection and maintenance.

[0033] As can be seen from Embodiments 1 and 2, after the fastening bolt 11 passes through the liner plate, the rotating handle 4 inside the middle slot 2 is rotated to drive the first screw 5 and the second screw 6 to rotate together. This causes the two sets of moving plates 8 to move relative to each other along the opening 10 through the symmetrical external thread and ball nut 7, which in turn causes the two sets of protective plates 9 to move relative to each other until the end of the protective plate 9 covers the upper side of the fastening bolt 11 and seals the installation opening 12. This can prevent the fastening bolt 11 on the liner plate from rusting due to the influence of the external environment after the liner plate is installed, thus ensuring the installation stability of the liner plate.

[0034] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A rod mill inlet / outlet liner device, comprising a liner body (1), characterized in that: The liner body (1) has a central slot (2) in the middle. Two sets of fixing plates (3) are fixedly connected to the inner side of the central slot (2). A rotating handle (4) is provided between the two sets of fixing plates (3). A first screw (5) and a second screw (6) are respectively provided at both ends of the rotating handle (4). A ball nut (7) is sleeved on the first screw (5) and the second screw (6). A movable plate (8) is snapped around the ball nut (7). A protective plate (9) is snapped onto the movable plate (8). The liner body (1) has a through opening (10), and fastening bolts (11) are provided on both sides of the bottom of the through opening (10). The liner body (1) has a mounting opening (12) on both sides.

2. The rod mill feed and discharge liner device according to claim 1, characterized in that, The ends of the first screw (5) and the second screw (6) are respectively fixedly connected to the first connecting plate (13) and the second connecting plate (14). The first connecting plate (13) and the second connecting plate (14) are respectively provided with the first locking hole (15) and the second locking hole (16). The rotating handle (4) is provided with the connecting port (17) and the rotating handle (4) is provided with the first locking bolt (18).

3. The rod mill feed and discharge liner device according to claim 2, characterized in that, The first connecting plate (13) and the second connecting plate (14) are both located inside the connecting port (17). The first latch (18) is engaged with the first connecting plate (13) and the second connecting plate (14) through the first latch hole (15) and the second latch hole (16) respectively.

4. The rod mill feed and discharge liner device according to claim 1, characterized in that, Both ends of the opening (10) are provided with sealing blocks (19), and a third locking hole (20) is provided through the sealing block (19). A second locking bolt (21) is provided through both sides of the liner body (1), and the second locking bolt (21) is engaged with the sealing block (19) through the third locking hole (20).

5. The rod mill feed and discharge liner device according to claim 2, characterized in that, The external threads of the first screw (5) and the second screw (6) are symmetrically arranged, and the first screw (5) and the second screw (6) are respectively threadedly connected to two sets of ball nuts (7).

6. The rod mill feed and discharge liner device according to claim 1, characterized in that, The movable plate (8) is located inside the opening (10), and the two sets of movable plates (8) are symmetrically arranged about the rotating handle (4).

7. The rod mill feed and discharge liner device according to claim 1, characterized in that, The fastening bolt (11) is located directly below the mounting opening (12), and the end of the protective plate (9) matches the mounting opening (12).

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