A high-efficiency hydraulic crushing device for ore crushing

Abstract

This utility model relates to the field of mining crushing equipment technology, specifically disclosing a high-efficiency hydraulic crushing device for ore crushing, including: a cone crusher; and a connecting ring, which is set on the top of the cone crusher. An abutment plate is slidably connected inside the connecting ring, a stabilizing component is set at one end of the abutment plate, and a reflector plate is fixedly connected to the end of the abutment plate near the stabilizing component. A laser ranging sensor is set inside the connecting ring. This utility model forms a linkage adjustment mechanism through an electric push rod, a fixed airbag, a moving rod, and a resistance bar. It dynamically changes the resistance value connected to the fixed motor control circuit according to the accumulation amount signal, achieving precise iteration of the fixed motor power. When the accumulation amount is large, the power is automatically increased; when the accumulation amount is small, the power is reduced. The locking design of the electromagnetic brake and the limiting rod effectively prevents resistance value deviation caused by mine vibration and ore impact, ensuring stable power adjustment.

Description

Technical Field

[0001] This utility model relates to the field of mining crushing equipment technology, specifically to a high-efficiency hydraulic crushing device for ore crushing. Background Technology

[0002] Cone crushers are core crushing equipment in industries such as mining and building materials. They are widely used in the medium and fine crushing of medium and high strength ores such as granite, limestone, and iron ore. Their crushing efficiency and operational stability directly affect the capacity of the entire production line.

[0003] In mining operations, the uncertainties in ore extraction and transportation lead to significant fluctuations in feed rate. However, the motor power of traditional cone crushers is a fixed value, which cannot dynamically adapt to changes in feed rate. When the feed rate is too large, the ore accumulates at the feed inlet, causing overload, blockage of the crushing chamber, and motor overload and overheating. In severe cases, it can cause equipment jamming and shutdown, requiring manual cleaning. This not only affects production efficiency but may also damage core components such as the motor and transmission parts. When the feed rate is too small, the fixed power motor wastes a lot of electrical energy. Therefore, we propose a high-efficiency hydraulic crushing device for ore crushing. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency hydraulic crushing device for ore crushing, in order to solve the problem mentioned in the background art that the motor power of traditional cone crushers is a fixed value and cannot dynamically adapt to changes in the feed rate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency hydraulic crushing device for ore crushing, comprising: a cone crusher; It also includes: a connecting ring, which is set at the top of the cone crusher. A contact plate is slidably connected inside the connecting ring. A stabilizing component is set at one end of the contact plate. A reflector is fixedly connected to the end of the contact plate near the stabilizing component. A laser rangefinder is set inside the connecting ring. A contact switch is set on the side of the connecting ring near the laser rangefinder. The contact plate moves and contacts the contact switch through the stabilizing component and enters the range of the laser rangefinder. The motor box is located on one side of the cone crusher. Inside the motor box, a placement plate is fixedly connected. Inside the placement plate, an electric push rod is installed. One end of the electric push rod contacts a fixed air bladder. One end of the fixed air bladder is connected to a fixed tube. Inside the fixed tube, a moving rod is fixedly connected. One end of the moving rod is fixedly connected to a connecting plate. One side of the surface of the connecting plate is fixedly connected to a slider. Inside the slider, a resistance strip is slidably connected. A protective box is fitted onto the surface of the resistance strip. The electric push rod pushes the moving rod and the slider to move on the resistance strip by squeezing the fixed air bladder.

[0006] The contact plate has sliding blocks fixedly connected to both sides, and the connecting ring has a groove inside that matches the sliding blocks.

[0007] The stabilizing component includes a piston rod fixedly connected to one end of the contact plate, a support tube slidably connected to the surface of the piston rod, the support tube being fixedly connected inside the connecting ring, and a compression spring being fixedly sleeved on the outside of the support tube, the compression spring being fixedly connected to one end of the contact plate.

[0008] The contact plate has an internal slot that fits the reflector, and the reflector is parallel to the laser rangefinder.

[0009] The top of the contact plate contacts a slanted insert plate, and a tension spring is fixedly connected to the top of the slanted insert plate. The tension spring is fixedly connected inside the connecting ring, and a receiving groove adapted to the slanted insert plate is opened inside the connecting ring.

[0010] One end of the fixed airbag is fixedly connected to a connecting tube, which is fixedly connected to one side of the fixed tube. Inside the fixed tube, a telescopic spring is fixedly connected, and the telescopic spring is fixedly connected to one end of the moving rod.

[0011] Among them, a coaxial ring is fixedly connected to the side of the connecting plate away from the slider, an electromagnetic brake is fixedly connected inside the coaxial ring, a limiting rod is slidably connected inside the electromagnetic brake, and the limiting rod is fixedly connected inside the placement plate.

[0012] This utility model has at least the following beneficial effects: This utility model forms a linkage adjustment mechanism through an electric push rod, a fixed airbag, a moving rod, and a resistance bar. It dynamically changes the resistance value connected to the fixed motor control circuit according to the accumulation amount signal, so as to achieve precise iteration of the fixed motor power. When the accumulation amount is large, the power is automatically increased and when the accumulation amount is small, the power is reduced. The locking design of the electromagnetic brake and the limiting rod effectively prevents the resistance value deviation caused by mine vibration and ore impact, and ensures stable power adjustment. This utility model uses a non-contact detection structure with hydraulic buffer and laser ranging. The hydraulic oil in the support tube uses viscous resistance to make the contact plate move slowly, avoiding signal distortion caused by instantaneous impact of ore. With the parallel design of the laser ranging sensor and the reflector, the error of the accumulation detection is greatly reduced. Furthermore, the guiding cooperation between the sliding block and the slide groove, and the reset design of the compression spring, ensure that the contact plate moves smoothly and resets smoothly, maintaining detection stability even under high-frequency impact conditions. This utility model, through the coordinated design of the inclined plate and the tension spring, allows the inclined plate to automatically insert into the gap between the contact plate and the connecting ring when ore is piled up, effectively preventing ore debris from entering key components such as the chute and detection sensors, avoiding jamming and wear, and greatly increasing the service life of the core detection components. The design of the inner wall of the connecting ring is overlaid with a wear-resistant alloy layer, the piston rod is chrome-plated, and the protective box is sealed and protected, which can withstand the mining environment with high dust, high humidity and high temperature fluctuations. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the rear cross-sectional structure of the motor box of this utility model; Figure 3 This is a top view cross-sectional structural diagram of the connecting ring of this utility model; Figure 4 This is a schematic front sectional view of the connecting ring structure of this utility model; Figure 5 This is a schematic diagram of the structure at point A of this utility model; Figure 6 This is a three-dimensional cross-sectional view of the internal components of the placement plate of this utility model.

[0014] In the diagram: 1. Cone crusher; 2. Connecting ring; 3. Contact plate; 4. Stabilizing component; 41. Piston rod; 42. Support tube; 43. Compression spring; 6. Laser rangefinder sensor; 7. Contact switch; 8. Motor box; 9. Placement plate; 10. Electric push rod; 11. Fixed airbag; 12. Fixed tube; 13. Moving rod; 14. Connecting plate; 15. Sliding block; 16. Resistance strip; 17. Protective box; 18. Sliding block; 19. Inclined plate; 20. Tension spring; 21. Connecting tube; 22. Telescopic spring; 23. Coaxial ring; 24. Electromagnetic brake; 25. Limiting rod. Detailed Implementation

[0015] 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.

[0016] Example 1 Please see Figures 1 to 6 This utility model provides a technical solution: a high-efficiency hydraulic crushing device for ore crushing, comprising: a cone crusher 1; It also includes: a connecting ring 2, which is set on the top of the cone crusher 1. A contact plate 3 is slidably connected inside the connecting ring 2. A stabilizing component 4 is set at one end of the contact plate 3. A reflector is fixedly connected to the end of the contact plate 3 near the stabilizing component 4. A laser rangefinder 6 is set inside the connecting ring 2. A contact switch 7 is set on the side of the connecting ring 2 near the laser rangefinder 6. The contact plate 3 moves through the stabilizing component 4 to contact the contact switch 7 and enters the range of the laser rangefinder 6. The motor box 8 is located on one side of the cone crusher 1. A placement plate 9 is fixedly connected inside the motor box 8. An electric push rod 10 is installed inside the placement plate 9. One end of the electric push rod 10 contacts a fixed air bag 11. A fixed tube 12 is installed at one end of the fixed air bag 11. A moving rod 13 is fixedly connected inside the fixed tube 12. A connecting plate 14 is fixedly connected at one end of the moving rod 13. A slider 15 is fixedly connected to one side of the surface of the connecting plate 14. A resistance strip 16 is slidably connected inside the slider 15. A protective box 17 is sleeved on the surface of the resistance strip 16. The electric push rod 10 pushes the moving rod 13 and the slider 15 to move on the resistance strip 16 by squeezing the fixed air bag 11.

[0017] The connecting ring 2 is a ring-shaped metal component, fixed to the top feed inlet of the cone crusher 1. It serves as the ore feed channel and the installation reference for the detection components. The inner wall is treated with wear-resistant material to resist impact and wear from the ore. The contact plate 3 is slidably connected inside the connecting ring 2. When the ore accumulates, it is squeezed and moves inward into the connecting ring 2, acting as a carrier for converting the ore accumulation amount into mechanical displacement. The edges of the plate are rounded to prevent ore from getting stuck between the contact plate 3 and the ring wall of the connecting ring 2. The reflector is a high-temperature resistant reflector, fixed in the placement slot of the contact plate 3, parallel to the laser rangefinder 6, and moves synchronously with the contact plate 3, changing the vertical distance to the laser rangefinder 6. It is a component that converts mechanical displacement into distance signals. The laser rangefinder 6 is fixed inside the connecting ring 2 and is triggered by the contact switch 7 to emit a laser beam to the reflector. By receiving the reflected signal, it calculates the real-time distance and converts the distance data into a signal of ore accumulation, which is then transmitted to the control center. The contact switch 7 is a limit switch and is fixed inside the connecting ring 2 on the side close to the laser rangefinder 6. When the contact plate 3 moves to the preset position, it contacts the laser rangefinder 6 to trigger it to start. This avoids the laser rangefinder 6 from consuming power by being idle for a long time and ensures that detection is only performed when the ore accumulation reaches a certain amount, thus reducing invalid data transmission. The motor box 8 is fixed to one side of the cone crusher 1, providing installation space and a protective shell for the core power adjustment components. The interior is dustproof and waterproof, adapting to the harsh mining environment. The mounting plate 9 is a rectangular metal plate fixed inside the motor box 8, providing an installation reference for components such as the electric push rod 10, fixing tube 12, and resistor strip 16, ensuring the fixed position of each component and preventing displacement due to vibration. The electric push rod 10 is a miniature DC push rod, fixed inside the mounting plate 9, driven by the control center to extend and retract, serving as the power source for power adjustment. The extension and retraction amount is adjusted according to the ore accumulation signal, and the airbag is fixed. 11 is a flexible latex airbag placed inside the placement plate 9. One end contacts the electric push rod 10, and the other end is connected to the connecting tube 21. When squeezed by the electric push rod 10, it discharges the internal dry gas, converting mechanical thrust into gas pressure. Its elastic coefficient is stable, ensuring distortion-free signal transmission. The fixing tube 12 is a metal sleeve fixed inside the placement plate 9; it serves as a conversion chamber from gas pressure to mechanical displacement, receiving the gas pressure transmitted from the connecting tube 21 to push the moving rod 13 to move. The inner wall is polished to reduce the sliding resistance of the moving rod 13. The moving rod 13 is a metal rod with a sliding connection. Inside the fixed tube 12, one end is in contact with the gas, and the other end is fixed to the connecting plate 14. Under the action of gas pressure, it moves against the elastic force of the telescopic spring 22. The moving distance is positively correlated with the gas pressure, realizing the conversion of gas pressure into mechanical displacement. One end of the connecting plate 14 is fixed to the moving rod 13, and the surface is fixed to the slider 15 and the coaxial ring 23, ensuring that the moving rod 13, slider 15 and electromagnetic brake 24 move synchronously. This avoids poor contact between the slider 15 and the resistor strip 16 due to force deviation, thus improving the adjustment accuracy. The slider 15 is a conductive copper alloy block that slides on the surface of the resistor strip 16 and moves with it. The rod 13 slides synchronously, changing the resistance value of the fixed motor control circuit, thereby adjusting the output power of the fixed motor. The resistor strip 16 is a ceramic-based nickel-chromium alloy resistor film, fixed inside the placement plate 9, with a protective box 17 fitted on its surface. It serves as a resistance adjustment reference, with the resistance value changing linearly with the length, providing a stable resistance change range for power adjustment. The protective box 17 is an insulating plastic box fitted on the surface of the resistor strip 16, providing dustproof, electric shockproof, and wear-proof protection, avoiding short circuits caused by mine dust pollution or metal debris, and providing sliding guidance for the slider 15 to ensure smooth movement.

[0018] Both sides of the contact plate 3 are fixedly connected to sliding blocks 18, and the inside of the connecting ring 2 is provided with a sliding groove that matches the sliding block 18.

[0019] The sliding blocks 18 are symmetrically fixed on both sides of the contact plate 3 and slidably connected in the groove of the connecting ring 2. This restricts the contact plate 3 to move only along the axial direction, ensuring that the contact plate 3 moves smoothly and avoiding tilting that could lead to detection errors. The groove provides a guide track for the sliding blocks 18, and the groove wall is lubricated to reduce sliding friction and ensure that the contact plate 3 responds sensitively.

[0020] The stabilizing component 4 includes a piston rod 41 fixedly connected to one end of the contact plate 3. A support tube 42 is slidably connected to the surface of the piston rod 41. The support tube 42 is fixedly connected inside the connecting ring 2. A compression spring 43 is fixedly sleeved on the outside of the support tube 42. The compression spring 43 is fixedly connected to one end of the contact plate 3.

[0021] The piston rod 41 is a cylindrical metal rod with one end fixed to the contact plate 3 and the other end slidably connected inside the support tube 42. When pushed by the contact plate 3, it moves axially along the support tube 42. The surface of the piston rod 41 is chrome-plated to improve wear resistance and sealing. The support tube 42 is a cylindrical metal sleeve fixed inside the connecting ring 2 and filled with hydraulic oil as a hydraulic buffer mechanism. It uses the viscous resistance of the hydraulic oil to make the piston rod 41 move slowly, avoiding the sudden movement of the contact plate 3 caused by the instantaneous impact of the ore, ensuring stable test data, and providing guidance and sealing protection for the piston rod 41. The compression spring 43 is a stainless steel spring that is sleeved on the outside of the support tube 42. The two ends are fixed to the connecting ring 2 and the contact plate 3, respectively. When the amount of ore accumulation decreases, it provides a restoring force to pull the contact plate 3 back to its initial position. The spring preload of the compression spring 43 can counteract the hydraulic oil resistance and ensure smooth reset.

[0022] The inside of the contact plate 3 is provided with a placement groove that is compatible with the reflector, and the reflector is parallel to the laser rangefinder 6.

[0023] The placement slot is a rectangular slot opened inside the contact plate 3, which provides installation space for the reflector, ensures that the reflector is firmly fixed to the contact plate 3, and keeps it parallel to the laser rangefinder 6 to avoid detection angle deviation.

[0024] The top of the contact plate 3 contacts the inclined plate 19, and the top of the inclined plate 19 is fixedly connected to the tension spring 20. The tension spring 20 is fixedly connected inside the connecting ring 2, and the inside of the connecting ring 2 is provided with a receiving groove that matches the inclined plate 19.

[0025] The inclined plate 19 is a wedge-shaped metal plate that is slidably connected in the receiving groove of the connecting ring 2. When the ore pushes the contact plate 3 to move, it moves downward under the thrust of the tension spring 20 and inserts into the gap between the connecting ring 2 and the contact plate 3, preventing ore debris from entering the chute or detection components and avoiding jamming and wear. The tension spring 20 is a stainless steel spring, with one end fixed to the connecting ring 2 and the other end fixed to the inclined plate 19, providing continuous thrust to the inclined plate 19 to ensure that it always fits against the surface of the contact plate 3 and the sealing effect is stable. When the contact plate 3 is reset, the inclined plate 19 is squeezed upward by the contact plate 3 and compresses the tension spring 20 to avoid interfering with the reset action. The receiving groove provides the inclined plate 19 with expansion and contraction space to ensure that the inclined plate 19 can flexibly expand and contract with the contact plate 3. The groove wall is smooth to reduce sliding resistance.

[0026] One end of the fixed airbag 11 is fixedly connected to a connecting tube 21, which is fixedly connected to one side of the fixed tube 12. A telescopic spring 22 is fixedly connected inside the fixed tube 12, and the telescopic spring 22 is fixedly connected to one end of the moving rod 13.

[0027] The connecting tube 21 is a high-pressure rubber hose, with one end fixed to the fixed airbag 11 and the other end fixed to one side of the fixed tube 12, transmitting the gas discharged from the fixed airbag 11. The flexible material can bend slightly with the movement of the component to avoid the rigid connection from breaking. The outer layer of the tube wall is wrapped with a nylon braided layer to improve wear resistance. The telescopic spring 22 is a stainless steel spring, with one end fixed to the inner wall of the fixed tube 12 and the other end fixed to the moving rod 13. When there is no gas pressure, the moving rod 13 is pulled to return to the initial position to ensure that the component is zero before the next adjustment. When the gas pushes, the spring is stretched and stores the reset potential energy.

[0028] A coaxial ring 23 is fixedly connected to the side of the connecting plate 14 away from the slider 15. An electromagnetic brake 24 is fixedly connected inside the coaxial ring 23. A limiting rod 25 is slidably connected inside the electromagnetic brake 24. The limiting rod 25 is fixedly connected inside the placement plate 9.

[0029] The coaxial ring 23 is a stainless steel ring-shaped component, fixed to the surface of the connecting plate 14, and moves synchronously with the connecting plate 14. It provides a mounting carrier for the electromagnetic brake 24, ensuring that the electromagnetic brake 24 and the slider 15 move synchronously. The electromagnetic brake 24 is an energized holding brake, fixed inside the coaxial ring 23. When the slider 15 moves to the target resistance value position, the control center controls it to be energized, gripping the limiting rod 25 and locking the position of the connecting plate 14, the moving rod 13, and the slider 15 to prevent the resistance value from shifting due to equipment vibration or ore impact. The limiting rod 25 is a stainless steel smooth rod, fixed inside the placement plate 9, parallel to the moving rod 13, providing a locking reference for the electromagnetic brake 24. The surface is chrome-plated for wear resistance to ensure no significant wear after long-term locking.

[0030] Example 2 In this second embodiment, the other structures remain unchanged. The difference from the first embodiment is that a fixed motor is fixedly connected to the top of the placement plate 9, and a rotating roller is fixedly connected to the output end of the fixed motor. A transmission belt is sleeved on the surface of the rotating roller, and the rotating roller is connected to the cone crusher 1 through the transmission belt.

[0031] The fixed motor is a three-phase asynchronous motor, fixed on the top of the placement plate 9, serving as the power source for the cone crusher 1 (replacing the original direct drive method). The power can be adjusted by the resistance bar 16. The rotating roller is a cylindrical metal roller, fixed at the output end of the fixed motor, with anti-slip texture on the surface to enhance the friction with the transmission belt and prevent slippage. The transmission belt is a rubber synchronous belt, which is sleeved on the pulley at the input end of the rotating roller and the cone crusher 1 to transmit the rotational power of the fixed motor to the cone crusher 1. The synchronous belt transmission has high precision.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency hydraulic crushing device for ore crushing, comprising: Cone crusher; The feature is that it further includes: a connecting ring, which is disposed at the top of the cone crusher, an abutment plate is slidably connected inside the connecting ring, a stabilizing component is disposed at one end of the abutment plate, a reflector plate is fixedly connected to the end of the abutment plate near the stabilizing component, a laser rangefinder is disposed inside the connecting ring, and a contact switch is disposed on the side of the connecting ring near the laser rangefinder, and the abutment plate moves to contact the contact switch through the stabilizing component and enters the range of the laser rangefinder. A motor box is located on one side of the cone crusher. A placement plate is fixedly connected inside the motor box. An electric push rod is installed inside the placement plate. One end of the electric push rod contacts a fixed air bladder. A fixed tube is installed at one end of the fixed air bladder. A moving rod is fixedly connected inside the fixed tube. A connecting plate is fixedly connected at one end of the moving rod. A slider is fixedly connected to one side of the surface of the connecting plate. A resistance strip is slidably connected inside the slider. A protective box is fitted onto the surface of the resistance strip. The electric push rod pushes the moving rod and the slider to move on the resistance strip by squeezing the fixed air bladder.

2. The high-efficiency hydraulic crushing device for ore crushing according to claim 1, characterized in that: Both sides of the contact plate are fixedly connected to sliding blocks, and the inside of the connecting ring is provided with a sliding groove that matches the sliding blocks.

3. The high-efficiency hydraulic crushing device for ore crushing according to claim 1, characterized in that: The stabilizing component includes a piston rod fixedly connected to one end of the contact plate, a support tube slidably connected to the surface of the piston rod, the support tube being fixedly connected inside the connecting ring, and a compression spring fixedly sleeved on the outside of the support tube, the compression spring being fixedly connected to one end of the contact plate.

4. The high-efficiency hydraulic crushing device for ore crushing according to claim 1, characterized in that: The contact plate has an internal slot that fits the reflector, and the reflector is parallel to the laser rangefinder.

5. The high-efficiency hydraulic crushing device for ore crushing according to claim 1, characterized in that: The top of the contact plate contacts an inclined plate, and a tension spring is fixedly connected to the top of the inclined plate. The tension spring is fixedly connected inside the connecting ring, and the inside of the connecting ring has a receiving groove that matches the inclined plate.

6. The high-efficiency hydraulic crushing device for ore crushing according to claim 1, characterized in that: One end of the fixed airbag is fixedly connected to a connecting tube, which is fixedly connected to one side of the fixed tube. A telescopic spring is fixedly connected inside the fixed tube, and the telescopic spring is fixedly connected to one end of the moving rod.

7. The high-efficiency hydraulic crushing device for ore crushing according to claim 1, characterized in that: A coaxial ring is fixedly connected to the side of the connecting plate away from the slider. An electromagnetic brake is fixedly connected inside the coaxial ring. A limiting rod is slidably connected inside the electromagnetic brake. The limiting rod is fixedly connected inside the placement plate.

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