High-pressure roller mill with self-checking function

Abstract

The utility model relates to the technical field of high-pressure roller mills, and discloses a high-pressure roller mill with a self-checking function, which comprises a roller mill assembly, a self-checking assembly capable of self-checking is arranged on the side surface of the roller mill assembly, the self-checking assembly comprises an air compression pump capable of supplying air, a movable block capable of moving is arranged in a roller shaft, and the movable block is connected with the roller mill assembly. A clamping block capable of being movably clamped is arranged on the side face of the movable block, and a movable restraining block is arranged on the upper side of the movable block. According to the device, when the stud is abraded to the position of the open groove, gas is communicated with the open groove through the connecting groove, the movable cavity loses gas pressure, so that the constraint block slides in the constraint groove, the movable block is extruded by deformation force of the reset spring to slide in the movable cavity, the detection block performs distance detection on the constraint block, and the distance is fed back to an external controller; and the controller prompts the wear information of the stud at the position, so that a self-detection effect on the stud is achieved, and the subsequent damage condition caused by the fact that the wear and falling conditions of the stud are not found is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure roller mills, in particular to a high-pressure roller mill with a self-checking function. Background Art

[0002] High-pressure roller mill is based on the principle of static pressure crushing. It crushes the material by applying static high pressure to the material. Its characteristics are increased production, high efficiency and energy saving. At present, there are still many problems to be solved in the development and application of high-pressure roller mill. When working, the high-pressure roller sleeve is the key working part of the equipment. The high-pressure roller sleeve is a combined structure of the mother roller sleeve and the inlaid carbide studs connected with the matching connection. Such a combined roller surface is required to bring the convenience of online repair and replacement of the roller, and at the same time, it must meet the strength requirements of up to hundreds of tons of huge ore crushing pressure, and ensure reliable connection and safe use.

[0003] At present, the roller sleeve assembly of the high-pressure roller mill still has the following problems: 1. The combined structure connected by the interference fit of the mother roller sleeve and the carbide studs has multiple studs evenly distributed at the root of a roller sleeve. Under the roller pressure and stress, the roller sleeve is prone to layering and falling off around the studs. Small pieces are difficult to find at the beginning. After a long working time, countless small pieces are connected into large pieces and fall off, forming pits on the roller surface. If not repaired in time, the roller sleeve will soon fail, and the studs are not easy to replace; 2. The mother roller sleeve and the carbide studs are connected by inorganic glue. Adhesive connection, the parent hole is required to be oil-free and dirt-free during bonding, it is difficult to reach all the holes during cleaning, the glue coating on the outer surface of the column nails is not necessarily uniform, and when the roller sleeve is working, individual column nails may shake under the action of roller pressure. Over time, the shaking amplitude of the column nails becomes larger and larger, and the column nails slide out of the column nail holes. When one column nail falls, the stress on the surrounding column nails increases, and it is difficult to find that the column nails have fallen off. By the time they are found, the roller surface is formed. If they are not repaired in time, the roller sleeve will soon fail. For this reason, we propose a high-pressure roller mill with a self-test function. Utility Model Content

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a high-pressure roller mill with a self-checking function.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-pressure roller mill with a self-inspection function, including a roller mill assembly, a self-inspection assembly capable of self-inspection is arranged on the side of the roller mill assembly, the self-inspection assembly includes an air compression pump for supplying air, a movable block is arranged inside the roller shaft, a movable clamping block is arranged on the side of the movable block, and a movable constraint block is arranged on the upper side of the movable block.

[0006] Preferably, the roller mill assembly comprises a machine body, wherein two sets of roller shafts are arranged in a mirror image inside the machine body, the roller shafts are provided with mounting grooves in an equidistant circular array, studs are movably installed inside the mounting grooves, and the bottom sides of the studs are provided with slots.

[0007] Preferably, the self-test component comprises a working chamber opened inside the roller shaft, a connecting chamber is opened on the side of the roller shaft, connecting pipes are equidistantly arranged on the inner wall of the connecting chamber, and an air compression pump is fixedly installed on the side of the roller shaft.

[0008] Preferably, the self-inspection component also includes an active cavity opened inside the roller shaft, a movable block is movably installed inside the active cavity, a connecting groove is opened on the inner wall of the working cavity, a constraint groove is opened on the top wall of the active cavity, a detection block is fixedly installed on the inner wall of the constraint groove, a constraint block is movably installed inside the constraint groove, a reset spring is fixedly connected between the side of the movable block and the inner wall of the active cavity, a through groove is opened on the inner wall of the active cavity, and a card block is movably installed inside the through groove.

[0009] Preferably, the movable cavity is a cylindrical groove with a concave cross-section, the movable block is a circular ring block with a concave cross-section, the constraint groove is a circular ring groove with an "L"-shaped cross-section, and the constraint block is a circular ring block with an "L"-shaped cross-section.

[0010] Preferably, the self-inspection component further comprises a sealing ring arranged on the bottom wall of the installation groove and the sealing ring is fitted on the side of the column nail, a connecting block is fixedly installed on the side of the movable block away from the constraint block, and a deformation block is arranged inside the connecting block.

[0011] Preferably, the sealing ring is a rubber annular ring, the connecting block is a rubber annular block with a convex cross-section and an annular groove formed inside, and the deformation block is a hollow elastic plastic annular block.

[0012] Beneficial Effects

[0013] The utility model provides a high pressure roller mill with a self-checking function. It has the following beneficial effects:

[0014] (1) The high-pressure roller mill with a self-checking function cooperates with the internal components of the self-checking component. The air compression pump delivers gas to the inside of the working chamber through the connecting chamber and the connecting pipe. The gas in the working chamber flows through the inside of the movable chamber and is squeezed on the side of the connecting block, so that the movable block slides in the movable chamber and squeezes the reset spring to deform. The movable block squeezes the clamping block to make it clamped on the side of the column nail for fixing. When the column nail is worn to the slot position, the gas is connected to the slot through the connecting slot, and the movable chamber loses gas pressure, so that the constraint block slides in the constraint slot. The deformation force of the reset spring squeezes the movable block to slide in the movable chamber. The detection block detects the distance of the constraint block and feeds back to the external controller. The controller prompts the wear information of the column nail at this position, so that the column nail can be self-checked to avoid the wear and falling of the column nail without being discovered, causing subsequent damage.

[0015] (2) The high-pressure roller mill with a self-checking function increases the air pressure by cooperating with the internal parts of the self-checking assembly through the air compression pump, so that the movable block slides a longer distance inside the movable cavity, and the groove position of the movable block slides to the through-groove position. In this way, the block loses the squeezing and loosening of the column nails, and the column nails at the leaking point are blocked by tools. In this way, the column nails can be easily disassembled and have a limited position fixing effect when in use, which simplifies the installation process and is convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a partial structural schematic diagram of the roller shaft of the utility model;

[0020] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure;

[0021] Figure 4 For this utility model Figure 3 Middle B is a schematic diagram of the enlarged structure.

[0022] Legend:

[0023] 1. Roller mill assembly; 11. Machine body; 12. Roller shaft; 13. Mounting groove; 14. Column nail; 15. Slot; 2. Self-test assembly; 21. Working chamber; 22. Connecting chamber; 221. Connecting pipe; 222. Air compressor pump; 23. Movable chamber; 231. Movable block; 24. Connecting groove; 241. Sealing ring; 25. Constraint groove; 251. Detection block; 252. Constraint block; 253. Reset spring; 26. Through groove; 261. Block; 27. Connecting block; 271. Deformation block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] A high pressure roller mill with a self-checking function, such as Figure 1 - Figure 4 As shown, it includes a roller mill assembly 1, and a self-inspection assembly 2 capable of self-inspection is arranged on the side of the roller mill assembly 1. The roller mill assembly 1 includes a body 11, and the body 11 is a hollow rectangular body. Two groups of roller shafts 12 are arranged in a mirror image inside the body 11. The roller shafts 12 are circular roller shafts 12, and mounting grooves 13 are opened in an equidistant circumferential array shape on the roller shafts 12. The mounting grooves 13 are cylindrical grooves. A column nail 14 is movably installed inside the mounting groove 13. The column nail 14 is a cylindrical nail 14 with a circular groove opened on the side. A slot 15 is opened on the bottom side of the column nail 14. The slot 15 is a cylindrical groove. When the column nail 14 is worn, the slot 15 can be formed into a connected state.

[0026] Furthermore, the self-test component 2 includes a working chamber 21 opened inside the roller shaft 12, the working chamber 21 is a circular chamber, a connecting chamber 22 is opened on the side of the roller shaft 12 at a position corresponding to the working chamber 21, the connecting chamber 22 is a cylindrical chamber, and connecting pipes 221 that penetrate the roller shaft 12 to the inside of the working chamber 21 are equidistantly arranged on the inner wall of the connecting chamber 22, the connecting pipe 221 is a circular pipe, an air compression pump 222 is fixedly installed on the side of the roller shaft 12 at a position corresponding to the connecting chamber 22, and the air compression pump 222 is an existing technology and will not be described in detail here, and an active chamber 23 is opened inside the roller shaft 12 at a position corresponding to the mounting groove 13, and the active chamber 23 is a cylindrical groove with a concave cross-section. The air is generated by the air compression pump 222 and supplied to the inside of the active chamber 23. A movable block 231 is movably installed inside the active chamber 23. The movable block 231 is a circular ring block with a concave cross section. A connecting groove 24 that passes through the roller shaft 12 to the inside of the mounting groove 13 is opened on the inner wall of the working chamber 21 at a position corresponding to the mounting groove 13, and the connecting groove 24 passes through the inside of the active chamber 23. The connecting groove 24 is a cylindrical groove. A sealing ring 241 is provided on the bottom wall of the mounting groove 13 and the sealing ring 241 is attached to the side position of the column nail 14. The sealing ring 241 is a circular ring made of rubber. The sealing ring 241 improves the sealing performance of the side of the column nail 14, thus forming an air supply state.

[0027] Furthermore, the self-test component 2 includes a constraint groove 25 also provided on the top wall of the movable cavity 23, the constraint groove 25 is a circular ring groove with an "L"-shaped cross section, a detection block 251 is fixedly installed on the inner wall of the constraint groove 25, the detection block 251 is a distance sensor (PLS-A100), a constraint block 252 is movably installed inside the constraint groove 25 and the constraint block 252 is fixedly connected to the side position of the movable block 231, the constraint block 252 is a circular ring block with an "L"-shaped cross section, and the wear condition of the column nail 14 is determined by detecting the position of the constraint block 252 by the detection block 251, and a reset spring 253 is fixedly connected between the side of the movable block 231 and the inner wall of the movable cavity 23, the reset spring 253 is a prior art and will not be described in detail here, and is used for the reset support of the movable block 231, and is provided on the inner wall of the movable cavity 23 corresponding to the reset spring 253. A through groove 26 that penetrates the roller shaft 12 is provided at the position of the annular groove of the column nail 14, and the through groove 26 is a spherical groove. A clamping block 261 is movably installed inside the through groove 26 and the clamping block 261 is attached to the side position of the column nail 14. The clamping block 261 is a spherical block. When the clamping block 261 is squeezed on the side of the column nail 14, it has a fixing effect. A connecting block 27 is fixedly installed on the side of the movable block 231 away from the constraint block 252. The connecting block 27 is a rubber ring block with a convex cross-section and an annular groove provided inside. A deformation block 271 is arranged inside the connecting block 27. The deformation block 271 is an elastic plastic ring block with a hollow interior. The connecting block 27 has a sealing effect, and the deformation block 271 improves the elastic recovery effect of the connecting block 27, so that gas will not leak from the side of the movable block 231.

[0028] The working principle of this utility model:

[0029] When in use, the air compression pump 222 supplies air through the connecting chamber 22, and transports the gas to the inside of the working chamber 21 through the connecting pipe 221. The gas inside the working chamber 21 flows through the inside of the active chamber 23 and is squeezed on the side position of the connecting block 27, so that the movable block 231 slides inside the active chamber 23 to squeeze the reset spring 253 to deform. The movable block 231 squeezes the clamping block 261 to make it clamped on the side of the column nail 14 to fix it. When the column nail 14 is worn to the position of the slot 15, the gas is connected with the slot 15 through the connecting slot 24. The active chamber 23 loses gas pressure, so that the constraint block 252 slides inside the constraint slot 25. The deformation force of the reset spring 253 squeezes the movable block 231 to slide inside the active chamber 23. The detection block 251 detects the distance of the constraint block 252 and feeds back to the external controller. The controller prompts the wear information of the column nail 14 at this position.

[0030] When in use, the air pressure is increased by the air compression pump 222, so that the movable block 231 can slide a farther distance inside the movable cavity 23, and the groove position of the movable block 231 can slide to the position of the through groove 26, so that the block 261 loses the squeezing and loosening of the column nail 14, and the column nail 14 at the leakage point is blocked by the tool, wherein the constraint block 252 slides inside the constraint groove 25 to guide and limit the movable block 231, the deformation block 271 provides reinforcement support for the connecting block 27, and the sealing ring 241 strengthens the sealing of the side of the column nail 14.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high pressure roller mill with a self-checking function, comprising a roller mill assembly (1), a self-checking assembly (2) capable of self-checking being arranged on the side of the roller mill assembly (1), characterized in that: The self-test component (2) comprises an air compression pump (222) for supplying air, a movable block (231) is arranged inside the roller shaft (12), a movable clamping block (261) is arranged on the side of the movable block (231), and a movable restraining block (252) is arranged on the upper side of the movable block (231).

2. The high pressure roller grinding machine with self-checking function according to claim 1, characterized in that: The roller mill assembly (1) comprises a machine body (11), wherein two groups of roller shafts (12) are arranged in a mirror-like manner inside the machine body (11), and mounting grooves (13) are provided in an equidistant circular array on the roller shafts (12), and column nails (14) are movably installed inside the mounting grooves (13), and a groove (15) is provided on the bottom side of the column nails (14).

3. The high pressure roller grinding machine with self-checking function according to claim 2, characterized in that: The self-test component (2) comprises a working chamber (21) opened inside the roller shaft (12), a connecting chamber (22) opened on the side of the roller shaft (12), connecting pipes (221) are arranged at equal intervals on the inner wall of the connecting chamber (22), and an air compression pump (222) is fixedly installed on the side of the roller shaft (12).

4. The high pressure roller grinding machine with self-checking function according to claim 3, characterized in that: The self-test component (2) further comprises an active cavity (23) provided inside the roller shaft (12), a movable block (231) being movably installed inside the active cavity (23), a connecting groove (24) being provided on the inner wall of the working cavity (21), a restraining groove (25) being provided on the top wall of the active cavity (23), a detection block (251) being fixedly installed on the inner wall of the restraining groove (25), a restraining block (252) being movably installed inside the restraining groove (25), a reset spring (253) being fixedly connected between the side surface of the movable block (231) and the inner wall of the active cavity (23), a through groove (26) being provided on the inner wall of the active cavity (23), and a clamping block (261) being movably installed inside the through groove (26).

5. The high pressure roller grinding machine with self-checking function according to claim 4, characterized in that: The movable cavity (23) is a cylindrical groove with a concave cross section, the movable block (231) is a circular ring block with a concave cross section, the restraining groove (25) is a circular ring groove with an "L"-shaped cross section, and the restraining block (252) is a circular ring block with an "L"-shaped cross section.

6. The high pressure roller grinding machine with self-checking function according to claim 5, characterized in that: The self-test component (2) further comprises a sealing ring (241) arranged on the bottom wall of the installation groove (13), and the sealing ring (241) is fitted on the side of the column nail (14); a connecting block (27) is fixedly installed on the side of the movable block (231) away from the restraining block (252); and a deformation block (271) is arranged inside the connecting block (27).

7. The high pressure roller grinding machine with self-checking function according to claim 6, characterized in that: The sealing ring (241) is a circular ring made of rubber material, the connecting block (27) is a circular ring block made of rubber material with a convex cross-section and a circular groove formed inside, and the deformation block (271) is a circular ring block made of elastic plastic material with a hollow interior.

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