Jaw crusher discharge port and discharge height linkage system and use method

Abstract

The jaw crusher discharge port and discharge height linkage system comprises an oil supply assembly, the oil outlet end of the oil supply assembly is connected with a discharge port locking oil cylinder, a discharge port adjusting oil cylinder and a conveying belt lifting oil cylinder through an integrated valve set, and a rod cavity of the discharge port locking oil cylinder is connected with an energy accumulator; a displacement sensor and an ultrasonic sensor are integrated in the conveying belt lifting oil cylinder, the displacement sensor monitors the position of the conveying belt, and the ultrasonic sensor monitors the position of the movable jaw. The size and height information of the discharge port is collected through the ultrasonic sensor and the displacement sensor, under the control of the hydraulic system, cooperative work of the size change of the discharge port and the lifting oil cylinder of the conveying belt is achieved, impact of stone on the conveying belt is reduced, and the situation that the conveying belt is stuck due to the fact that the discharge port is too large is avoided; rubbing and abrasion of the conveying belt caused by the concave-convex ground during walking are reduced, and the service life of the conveying belt is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of engineering machinery, and in particular to a jaw crusher discharge port and discharge height linkage system and a use method thereof. Background Art

[0002] Jaw crusher has a simple structure and is easy to manufacture. It is one of the main crushing equipment and is widely used in coarse crushing operations in mining, building materials, infrastructure departments and construction waste recycling departments. It has the characteristics of high output, uniform product particle size, simple structure, reliable operation, easy maintenance and economical operating costs.

[0003] The linkage adjustment between the discharge port and the discharge height of the jaw crusher is important and necessary. In the prior art, the jaw crusher controls the discharge size by adjusting the size of the discharge port. At present, the relative height between the discharge port of the crusher and the conveyor belt of most mobile jaw crushing stations is constant and cannot be adjusted. In order to ensure that stones of all particle sizes can be transferred smoothly, the discharge port of the jaw crusher will be adjusted to the maximum state to match the discharge height, otherwise the conveyor belt will be blocked and the work efficiency will be affected. If the discharge size is reduced, the crusher discharge port needs to be reduced, the discharge height becomes higher, and the relative height between the discharge port and the conveyor belt becomes larger. The crushed stones will fall on the conveyor belt at a higher initial velocity, causing impact on the conveyor belt and affecting the belt life. When the equipment crawler is walking, the conveyor belt has a small ground clearance and is easily scratched and worn by the ground protrusions, causing belt damage. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a jaw crusher discharge port and discharge height linkage system and a method of use which is easy to use and has good effects.

[0005] The present invention is realized by the following technical scheme: a jaw crusher discharge port and discharge height linkage system, comprising an oil supply component, the oil inlet end of the oil supply component is connected to a hydraulic oil tank, the oil outlet end of the oil supply component is connected to a discharge port locking cylinder, a discharge port regulating cylinder and a conveyor belt lifting cylinder through an integrated valve group, and a displacement sensor and an ultrasonic sensor are integrated inside the conveyor belt lifting cylinder. It also includes a controller, the displacement sensor and the ultrasonic sensor are connected to the input end of the controller, the output end of the controller is connected to the integrated valve group, and the controller sends a control signal to the integrated valve group; During the crushing operation, the controller monitors the position of the movable jaw and the size of the discharge port opening through the ultrasonic sensor, and monitors the position of the conveyor belt through the displacement sensor. When the discharge port opening is reduced, the controller controls the movement of the conveyor belt lifting cylinder to drive the conveyor belt to rise to the specified position.

[0006] It is further described that: the integrated valve group includes a main valve connected to the oil supply assembly, the main valve is connected to solenoid valve I and solenoid valve II, the solenoid valve I is connected to the discharge port locking cylinder and the conveyor belt lifting cylinder, a solenoid valve III is arranged between the solenoid valve I and the conveyor belt lifting cylinder, the rod chamber of the discharge port locking cylinder is connected to the hydraulic oil tank through the solenoid valve IV; the solenoid valve II is connected to the discharge port adjusting cylinder.

[0007] A hydraulic lock and a one-way throttle valve are arranged on the pipeline connecting the discharge port regulating oil cylinder and the electromagnetic valve II.

[0008] The main valve is a two-position four-way electromagnetic reversing valve, the electromagnetic valve I and the electromagnetic valve II are three-position four-way electromagnetic reversing valves, and the electromagnetic valve III and the electromagnetic valve IV are two-position two-way electromagnetic reversing valves.

[0009] A one-way valve II and a throttle valve I are arranged in sequence between the solenoid valve I and the rod chamber of the discharge port locking cylinder, and overflow valves are arranged at the oil inlet end of the one-way valve II and the oil outlet end of the throttle valve I; a one-way valve IV is arranged between the rod chamber of the discharge port locking cylinder and the hydraulic oil tank.

[0010] The oil inlet side of the solenoid valve III is connected to the hydraulic oil tank through a one-way valve III.

[0011] A method for using a jaw crusher discharge port and discharge height linkage system, the jaw crusher discharge port and discharge height linkage system also includes an operation panel, and an accumulator connected to a rod chamber of the discharge port locking cylinder, the method comprising the following steps: S1. At the beginning, the controller controls the integrated valve group to be energized, so that the discharge port locking cylinder is depressurized and the movable jaw is in an adjustable state; S2, the integrated valve group is energized to allow oil to flow into the rodless chamber of the discharge port regulating cylinder, and the piston rod of the discharge port regulating cylinder is pushed forward. At the same time, the triangular wedge block of the discharge port regulating cylinder moves forward toward the center. Under the mutual squeezing action of the wedge blocks, the movable jaw toggle plate pushes the movable jaw forward, and the crusher discharge port becomes smaller; S3, the integrated valve group is energized to make the discharge port locking cylinder pressurized to the preset value, and the piston rod of the discharge port locking cylinder pulls the movable jaw backward to hold the toggle plate, completing the discharge port adjustment; S4, the ultrasonic sensor monitors the existing movable jaw position and the size of the discharge port opening, the displacement sensor monitors the existing conveyor belt position, collects information and transmits it back to the controller, the controller calculates the relative position of the existing discharge port and the conveyor belt, the integrated valve group is energized to allow oil to flow into the rod chamber of the conveyor belt lifting cylinder, the piston rod retreats, and the conveyor belt rises to the specified position; S5. During the crushing operation, the discharge port locking cylinder is always in a tensioned state under the action of the accumulator to prevent the movable jaw from moving; The adjustment method of the whole machine position is as follows: T1. When the position of the whole machine needs to be adjusted, when the whole machine is switched to the walking mode on the operation panel, the controller instructs the integrated valve group to be energized to allow oil to flow into the rod chamber of the conveyor belt lifting cylinder, and the piston rod of the conveyor belt lifting cylinder retreats, driving the conveyor belt to rise, increasing the gap between the bottom of the conveyor belt and the ground to avoid scratches during walking; T2. After adjusting the position of the whole machine, when the whole machine is switched to the working mode on the operation panel, the controller instructs the integrated valve group to be energized to drain the oil from the rod chamber of the conveyor belt lifting cylinder, and the piston rod of the conveyor belt lifting cylinder retreats, so that the conveyor belt drops to the position of the previous working state, which is convenient for continuing to complete the crushing operation.

[0012] In step S1, solenoid valve I is not energized and is in the disconnected state, and solenoid valve IV is energized to connect the discharge port locking cylinder and the hydraulic oil tank for pressure relief; in step S3, solenoid valve I is energized to switch the working position, and the hydraulic oil enters the rod chamber of the discharge port locking cylinder.

[0013] In step S2, the solenoid valve II is energized to switch the working position, and the hydraulic oil enters the rodless cylinder of the discharge port adjustment cylinder.

[0014] In step S4, solenoid valve I is energized to switch the working position, and the hydraulic oil enters the rod chamber of the conveyor belt lifting cylinder. In step T2, solenoid valve I is not energized, solenoid valve III is energized to switch the working position, and the rod chamber of the conveyor belt lifting cylinder leaks oil.

[0015] The present invention has the following advantages: a jaw crusher discharge port and discharge height linkage system and a method for use of the present invention collects discharge port size and discharge port height information through ultrasonic sensors and displacement sensors, and under the control of the hydraulic system, realizes the coordinated work of the discharge port size change and the conveyor belt lifting cylinder, reduces the impact of stones on the conveyor belt, avoids the conveyor belt being stuck due to the excessively large discharge port, reduces the scratches and wear on the conveyor belt caused by uneven surfaces during walking, and extends the service life of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0017] In the attached picture: Figure 1 It is the hydraulic principle diagram of the present invention; Figure 2 It is a structural schematic diagram of the integrated valve group of the present invention; Figure 3 It is a structural schematic diagram of the present invention.

[0018] In the figure: 1. Hydraulic oil tank, 2. Oil supply assembly, 3. Integrated valve group, 4. Discharge port locking cylinder, 5. Accumulator, 6. Discharge port adjusting cylinder, 7. Conveyor belt lifting cylinder, 8. Operation panel, 9. Controller, 10. Ultrasonic sensor, 11. Hydraulic lock, 12. One-way throttle valve, 31. One-way valve I, 32. Main valve, 33. Solenoid valve I, 34. Solenoid valve II, 35. Solenoid valve III, 36. One-way valve II, 37. Throttle valve I, 38. One-way valve III, 40. Solenoid valve IV, 41. One-way valve IV, 42. Pressure relief valve.

[0019] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0021] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figures 1 to 3The shown system is a jaw crusher discharge port and discharge height linkage system, comprising an oil supply component 2, the oil inlet end of the oil supply component 2 is connected to a hydraulic oil tank 1, the oil outlet end of the oil supply component 2 is connected to a discharge port locking cylinder 4, a discharge port adjusting cylinder 6 and a conveyor belt lifting cylinder 7 through an integrated valve group 3, the rod chamber of the discharge port locking cylinder 4 is connected to an accumulator 5, and the conveyor belt lifting cylinder 7 is internally integrated with a displacement sensor and an ultrasonic sensor 10, the displacement sensor monitors the position of the conveyor belt, and the ultrasonic sensor 10 monitors the position of the movable jaw. The jaw crusher discharge port and discharge height linkage system of the present invention connects the discharge port locking cylinder, the discharge port adjusting cylinder and the conveyor belt lifting cylinder through an integrated valve group, wherein the discharge port locking cylinder is used to fix the position of the movable jaw. When the rod chamber of the discharge port locking cylinder is filled with oil, the piston rod retracts, the movable range of the movable jaw becomes larger, and the size of the discharge port can be adjusted in the next step; when the rod chamber or the rodless chamber of the discharge port adjusting cylinder is filled with oil, it can be used to adjust the position of the movable jaw. When the discharge port size is adjusted to the right position, the discharge port locking cylinder unloads oil to fix the position of the movable jaw, thereby completing the adjustment of the discharge port size; the conveyor belt The lifting cylinder is used to adjust the distance between the conveyor belt and the jaw crusher. According to the size of the discharge opening, the distance between the conveyor belt and the jaw crusher is adjusted synchronously to prevent the material from falling at an inappropriate height, damaging the conveyor belt and reducing the service life of the equipment. In addition, the conveyor belt lifting cylinder is internally integrated with a displacement sensor, an ultrasonic sensor and a control system. The ultrasonic sensor monitors the position of the movable jaw and the size of the discharge opening through echo. The displacement sensor monitors the position of the conveyor belt and transmits the feedback to the control system. The control system calculates the appropriate unloading height and controls the conveyor belt by adjusting the conveyor belt lifting cylinder.

[0024] like Figure 1 to Figure 2The shown system is a jaw crusher discharge port and discharge height linkage system, an integrated valve group 3, including a main valve 32 connected to the oil supply component 2, the main valve 32 is connected to the solenoid valve I33 and the solenoid valve II34, the solenoid valve I33 is connected to the discharge port locking cylinder 4 and the conveyor belt lifting cylinder 7, a solenoid valve III35 is arranged between the solenoid valve I33 and the conveyor belt lifting cylinder 7, the rod chamber of the discharge port locking cylinder 4 is connected to the hydraulic oil tank 1 through the solenoid valve IV40; the solenoid valve II34 is connected to the discharge port adjusting cylinder 6. The integrated valve group of the present invention comprises a main valve, one end of which is connected to an oil supply component, wherein the oil supply component is a hydraulic pump, and an overflow valve is also provided at the oil inlet end of the main valve, and the overflow valve is used to ensure the stability of the working pressure of the valve group in the integrated valve; the other end of the main valve is connected to an electromagnetic valve I and an electromagnetic valve II, wherein the electromagnetic valve I is connected to a discharge port locking cylinder and a conveyor belt lifting cylinder, and through the action of the electromagnetic valve I, the discharge port locking cylinder and the conveyor belt lifting cylinder are selected to perform corresponding actions, and the rod chamber of the discharge port locking cylinder is connected to the electromagnetic valve I, and at the same time, the discharge port A solenoid valve IV is also provided between the rod chamber of the locking cylinder and the hydraulic oil tank for oil drainage, so as to realize the extension and retraction of the guide rod of the discharge port locking cylinder. A solenoid valve III is provided between the solenoid valve I and the conveyor belt lifting cylinder. By switching the working position of the solenoid valve III, the oil inlet or oil outlet of the rod chamber of the conveyor belt lifting cylinder is controlled to realize the rising and falling of the conveyor belt; the solenoid valve II is connected to the discharge port adjusting cylinder, and the solenoid valve II switches the working position to adjust the oil inlet of the rod chamber or the rodless chamber of the discharge port adjusting cylinder, so as to realize the extension and retraction of the guide rod of the discharge port adjusting cylinder and achieve the effect of adjusting the position of the movable jaw.

[0025] like Figure 1 and Figure 3 The jaw crusher discharge port and discharge height linkage system shown in the figure also includes a controller 9 and an operation panel 8, the displacement sensor and ultrasonic sensor 10 are connected to the input end of the controller 9, and the output end of the controller 9 is connected to the main valve 32, solenoid valve I 33, solenoid valve II 34, solenoid valve III 35 and solenoid valve IV 40. The jaw crusher discharge port and discharge height linkage system of the present invention receives the signal of the displacement sensor and the ultrasonic sensor through the controller, determines the next action, and then outputs an electrical signal to the control end of each solenoid valve of the integrated valve group to realize the control of the discharge port adjustment cylinder and the conveyor belt lifting cylinder, and completes the linkage adjustment of the discharge port and the discharge height.

[0026] like Figure 1 to Figure 2 A jaw crusher discharge port and discharge height linkage system is shown, and a hydraulic lock 11 and a one-way throttle valve 12 are provided on the pipeline connecting the discharge port regulating oil cylinder 6 and the solenoid valve II 34. The inlet and outlet ports of the discharge port regulating oil cylinder of the present invention are provided with a one-way throttle valve and a hydraulic lock, which are used to adjust the inlet and outlet oil speed and ensure the safety of the oil cylinder operation.

[0027] like Figure 1 to Figure 2 The shown is a jaw crusher discharge port and discharge height linkage system, the main valve 32 is a two-position four-way electromagnetic reversing valve, the electromagnetic valve I 33 and the electromagnetic valve II 34 are three-position four-way electromagnetic reversing valves, and the electromagnetic valve II 34 and the electromagnetic valve IV 40 are two-position two-way electromagnetic reversing valves. When the main valve of the present invention is in the right position, the hydraulic oil flows to the electromagnetic valve I and the electromagnetic valve II; when the electromagnetic valve I is in the left position, the hydraulic oil flows to the discharge port locking cylinder, and when it is in the right position, the hydraulic oil flows to the conveyor belt lifting cylinder; when the electromagnetic valve II is in the left position, the rod chamber of the discharge port regulating cylinder enters the oil, and when it is in the right position, the rodless chamber enters the oil; when the electromagnetic valve II and the electromagnetic valve IV are in the upper position, the hydraulic oil circulates in one direction, and when they are in the lower position, the rod chambers of the discharge port locking cylinder and the conveyor belt lifting cylinder leak oil.

[0028] like Figure 1 to Figure 2 A jaw crusher discharge port and discharge height linkage system is shown, wherein a one-way valve II36 and a throttle valve I37 are provided in sequence between the solenoid valve I33 and the rod chamber of the discharge port locking oil cylinder 4, and overflow valves are provided at the oil inlet end of the one-way valve II36 and the oil outlet end of the throttle valve I37; a one-way valve IV41 is provided between the rod chamber of the discharge port locking oil cylinder 4 and the hydraulic oil tank 1. Overflow valves are provided at both ends of the throttle valve I of the present invention to stabilize the hydraulic oil pressure of the rod chamber of the discharge port locking oil cylinder to ensure the safe operation of the system; in addition, a one-way valve IV is provided between the rod chamber of the discharge port locking oil cylinder and the hydraulic oil tank to prevent the discharge port locking oil cylinder from being sucked empty when the crusher is in operation, and to protect the hydraulic components.

[0029] like Figure 1 to Figure 2 A jaw crusher discharge port and discharge height linkage system is shown, and a pressure relief valve 42 is provided between the rod chamber of the discharge port locking cylinder 4 and the hydraulic oil tank 1. The discharge port locking cylinder of the present invention can also release pressure through the pressure relief valve between the hydraulic oil tank.

[0030] like Figure 1 to Figure 2 The discharge port and discharge height linkage system of a jaw crusher is shown, and the oil inlet side of the solenoid valve III 35 is connected to the hydraulic oil tank 1 through a one-way valve III 38. A one-way valve III is arranged between the rod chamber of the conveyor belt lifting cylinder of the present invention and the hydraulic oil tank to prevent air suction during system operation and to protect hydraulic components.

[0031] A method for using a jaw crusher discharge port and a discharge height linkage system, comprising the following steps: S1. At the beginning, the controller 9 controls the integrated valve group 3 to be energized, so that the discharge port locking cylinder 4 is depressurized, and the movable jaw is in an adjustable state; the solenoid valve I33 is not energized and is in a disconnected state, and the solenoid valve IV40 is energized to connect the discharge port locking cylinder 4 and the hydraulic oil tank 1 to release pressure; in step S3, the solenoid valve I33 is energized to switch the working position, and the hydraulic oil enters the rod chamber of the discharge port locking cylinder 4; S2, the integrated valve group 3 is energized to make the rodless chamber of the discharge port regulating oil cylinder 6 flow oil, the piston rod of the discharge port regulating oil cylinder 6 is pushed forward, and at the same time, the triangular wedge block of the discharge port regulating oil cylinder 6 moves forward to the center. Under the mutual squeezing action of the wedge blocks, the movable jaw toggle plate pushes the movable jaw forward, and the crusher discharge port becomes smaller; the solenoid valve II34 is energized to switch the working position, and the hydraulic oil enters the rodless chamber of the discharge port regulating oil cylinder 6; S3, the integrated valve group 3 is energized to make the discharge port locking cylinder 4 pressurized to the preset value, and the piston rod of the discharge port locking cylinder 4 pulls the movable jaw backward to hold the toggle plate, completing the discharge port adjustment; S4, the ultrasonic sensor 10 monitors the existing movable jaw position and the size of the discharge port opening, the displacement sensor monitors the existing conveyor belt position, collects information and transmits it back to the controller 9, the controller 9 calculates the relative position of the existing discharge port and the conveyor belt, the integrated valve group 3 is energized to allow oil to flow into the rod chamber of the conveyor belt lifting cylinder 7, the piston rod retreats, and the conveyor belt rises to the specified position; the solenoid valve I33 is energized to switch the working position, and the hydraulic oil enters the rod chamber of the conveyor belt lifting cylinder 7; S5. During the crushing operation, the discharge port locking cylinder 4 is always in a tensioned state under the action of the accumulator 5 to prevent the movable jaw from moving; The adjustment method of the whole machine position is as follows: T1. When the position of the whole machine needs to be adjusted, the whole machine is switched to the walking mode on the operation panel 8, and the controller 9 instructs the integrated valve group 3 to be energized to allow oil to flow into the rod chamber of the conveyor belt lifting cylinder 7, and the piston rod of the conveyor belt lifting cylinder 7 retreats, driving the conveyor belt to rise, increasing the gap between the bottom of the conveyor belt and the ground, and avoiding scratches during walking; T2. After adjusting the position of the whole machine, when the whole machine is switched to the working mode on the operation panel 8, the controller 9 instructs the integrated valve group 3 to be energized to drain the oil from the rod chamber of the conveyor belt lifting cylinder 7, and the piston rod of the conveyor belt lifting cylinder 7 retreats to make the conveyor belt drop to the position of the previous working state, so as to continue the crushing operation; the solenoid valve I33 is not energized, the solenoid valve III35 is energized to switch the working position, and the rod chamber of the conveyor belt lifting cylinder 7 drains the oil.

[0032] The hydraulic principle of the jaw crusher discharge port and discharge height linkage system of the present invention is as follows: The oil supply assembly consists of a motor and a hydraulic pump transmission connection. The oil supply assembly sucks the hydraulic oil from the hydraulic oil tank into the integrated valve group. The overflow valve at the oil inlet end of the integrated valve group limits the system pressure to 250bar.

[0033] When the main valve receives an electrical signal and is in the right position, and solenoid valves I and III have no electrical signal and are in the middle position, the other components do not operate.

[0034] When the main valve 32, solenoid valve I33 and solenoid valve III53 are all powered on and switched to the right position, right position and upper position respectively, the hydraulic oil enters the rod chamber of the conveyor belt lifting cylinder 7 through the throttle valve II39 and the solenoid valve III53, the guide rod of the conveyor belt lifting cylinder 7 contracts, and the main conveyor is lifted; when the main valve receives an electrical signal and is in the right position, the solenoid valve I receives an electrical signal and is in the right position, the solenoid valve III is in the upper position, the hydraulic oil enters the rod chamber of the main conveyor lifting cylinder through the solenoid valve III, the cylinder contracts, and the main conveyor is lifted. At this time, due to the gravity of the main conveyor, the piston rod of the main conveyor lifting cylinder is subjected to tension, the rod chamber of the cylinder is squeezed and leaks oil, the one-way valve III draws oil from the hydraulic oil tank through the solenoid valve III to replenish the rod chamber of the main conveyor lifting cylinder. When the solenoid valve III receives an electrical signal and is in the lower position, the rod chamber of the main conveyor lifting cylinder leaks oil, the cylinder extends, and the main conveyor descends.

[0035] When the main valve 32 and the solenoid valve Ⅰ33 are both energized to switch their working positions to the right and left positions respectively, the hydraulic oil enters the accumulator 5 and the rod chamber of the discharge port locking cylinder 4 through the one-way valve Ⅱ36 and the throttle valve Ⅰ37, and the jaw crusher main machine performs crushing operation. When the solenoid valve Ⅰ receives an electrical signal and is in the left position, the hydraulic oil passes through the one-way valve Ⅱ and the throttle valve Ⅰ and enters the rod chamber of the accumulator and the discharge port locking cylinder. At this time, the main jaw crusher performs crushing operation, and the discharge port locking cylinder buffers the crushing impact. The impact energy is absorbed and released by the accumulator. A one-way valve Ⅳ41 is provided to absorb oil from the hydraulic oil tank to prevent the discharge port locking cylinder and the accumulator circuit from being sucked into the air during operation, causing damage to the components. The overflow valves at both ends of the throttle valve Ⅰ limit the inlet pressure and outlet pressure of the throttle valve Ⅰ in the accumulator and the discharge port locking cylinder circuit to 180bar and 210bar. When the discharge port locking cylinder and the accumulator circuit stop working and need to be depressurized, the solenoid valve Ⅰ receives an electrical signal and returns to the middle position, and the solenoid valve Ⅳ40 receives an electrical signal and is in the lower position. At this time, the circuit is depressurized, or the solenoid valve Ⅳ40 is in the upper position, and the pressure is relieved by manually adjusting the pressure relief valve.

[0036] When the main valve 32 is switched to the right position by electricity, and the solenoid valve II 34 is switched to the left or right position by electricity, the hydraulic oil enters the discharge port regulating cylinder 6 to adjust the size of the main machine discharge port. When the main valve receives an electrical signal and is in the right position, and the solenoid valve II receives an electrical signal and is in the left and right positions, the expansion and contraction of the discharge port regulating cylinder is controlled respectively to adjust the size of the main machine discharge port. In addition, a throttle valve is added to the discharge port regulating cylinder circuit to adjust the expansion and contraction speed of the discharge port regulating cylinder. In addition, a hydraulic lock is added to the discharge port regulating cylinder circuit to prevent the cylinder from being disabled due to oil leakage in the circuit due to some reasons during the working process, which may bring serious consequences.

[0037] The invention discloses a jaw crusher discharge port and discharge height linkage system and a use method thereof, which accurately locates the discharge port size and detects the discharge port height through ultrasonic sensors and displacement sensors, controls the various actions of various oil cylinders through a hydraulic system, and the system automatically matches the conveyor belt to a suitable height, so as to achieve the purpose of making the discharge port size change and the conveyor belt lifting cylinder work in coordination; the application solves the problems of short conveyor belt life and material blockage caused by fixed conveyor belts, and realizes the linkage adjustment of the discharge port and the discharge height through a hydraulic adjustment system, a conveyor belt, a wedge block, a tensioning cylinder, and an accurate positioning and automatic detection and adjustment system for the discharge port size, and when walking, by selecting a walking mode on the control panel, the automatic detection and adjustment system can automatically raise the conveyor belt to the highest position, increase the ground clearance, and facilitate the walking of the mobile crushing station; it can not only extend the life of the conveyor belt and reduce the frequency of material blockage, but also eliminate the safety risks of workers' operation, shorten the downtime, and improve production capacity.

[0038] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0039] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present invention and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by this application.

[0040] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. A jaw crusher discharge port and discharge height linkage system, characterized by: The invention comprises an oil supply component (2), wherein the oil inlet end of the oil supply component (2) is connected to a hydraulic oil tank (1), and the oil outlet end of the oil supply component (2) is connected to a discharge port locking cylinder (4), a discharge port regulating cylinder (6) and a conveyor belt lifting cylinder (7) via an integrated valve group (3), wherein a displacement sensor and an ultrasonic sensor (10) are integrated inside the conveyor belt lifting cylinder (7). It also includes a controller (9), the displacement sensor and the ultrasonic sensor (10) are connected to the input end of the controller (9), the output end of the controller (9) is connected to the integrated valve group (3), and the controller (9) sends a control signal to the integrated valve group (3); During the crushing operation, the controller (9) monitors the position of the movable jaw and the size of the discharge port opening through the ultrasonic sensor (10), and monitors the position of the conveyor belt through the displacement sensor. When the discharge port opening decreases, the controller (9) controls the conveyor belt lifting cylinder (7) to move and drive the conveyor belt to rise to a specified position.

2. A jaw crusher discharge port and discharge height linkage system as claimed in claim 1, characterized in that: The integrated valve group (3) comprises a main valve (32) connected to the oil supply assembly (2); the main valve (32) is connected to a solenoid valve I (33) and a solenoid valve II (34); the solenoid valve I (33) is connected to a discharge port locking cylinder (4) and a conveyor belt lifting cylinder (7); a solenoid valve III (35) is arranged between the solenoid valve I (33) and the conveyor belt lifting cylinder (7); the rod chamber of the discharge port locking cylinder (4) is connected to the hydraulic oil tank (1) through a solenoid valve IV (40); and the solenoid valve II (34) is connected to the discharge port regulating cylinder (6).

3. A jaw crusher discharge port and discharge height linkage system as claimed in claim 2, characterized in that: A hydraulic lock (11) and a one-way throttle valve (12) are provided on the pipeline connecting the discharge port regulating cylinder (6) and the solenoid valve II (34).

4. A jaw crusher discharge port and discharge height linkage system as claimed in claim 2, characterized in that: The main valve (32) is a two-position four-way electromagnetic reversing valve, the electromagnetic valve I (33) and the electromagnetic valve II (34) are three-position four-way electromagnetic reversing valves, and the electromagnetic valve III (35) and the electromagnetic valve IV (40) are two-position two-way electromagnetic reversing valves.

5. A jaw crusher discharge port and discharge height linkage system as claimed in claim 2, characterized in that: A one-way valve II (36) and a throttle valve I (37) are provided in sequence between the solenoid valve I (33) and the rod chamber of the discharge port locking cylinder (4); an overflow valve is provided at the oil inlet end of the one-way valve II (36) and the oil outlet end of the throttle valve I (37); and a one-way valve IV (41) is provided between the rod chamber of the discharge port locking cylinder (4) and the hydraulic oil tank (1).

6. A jaw crusher discharge port and discharge height linkage system as claimed in claim 2, characterized in that: The oil inlet side of the solenoid valve III (35) is connected to the hydraulic oil tank (1) via a one-way valve III (38).

7. A method for using the jaw crusher discharge port and discharge height linkage system according to claim 2, characterized in that: The jaw crusher discharge port and discharge height linkage system further comprises an operation panel (8), and an accumulator (5) connected to the rod chamber of the discharge port locking cylinder (4). The method comprises the following steps: S1. At the beginning, the controller (9) controls the integrated valve group (3) to be energized, so that the discharge port locking cylinder (4) releases pressure, and the movable jaw is in an adjustable state; S2, the integrated valve group (3) is energized to allow oil to flow into the rodless chamber of the discharge port regulating oil cylinder (6), and the piston rod of the discharge port regulating oil cylinder (6) is pushed forward. At the same time, the triangular wedge block of the discharge port regulating oil cylinder (6) moves forward toward the center. Under the mutual squeezing action of the wedge blocks, the movable jaw toggle plate pushes the movable jaw forward, and the crusher discharge port becomes smaller. S3, the integrated valve group (3) is energized to make the discharge port locking cylinder (4) replenish the pressure to a preset value, and the piston rod of the discharge port locking cylinder (4) pulls the movable jaw backward to hold the toggle plate, thereby completing the discharge port adjustment; S4, the ultrasonic sensor (10) monitors the existing movable jaw position and the size of the discharge port opening, the displacement sensor monitors the existing conveyor belt position, collects information and transmits it back to the controller (9), the controller (9) calculates the relative position of the existing discharge port and the conveyor belt, the integrated valve group (3) is energized to allow oil to flow into the rod chamber of the conveyor belt lifting cylinder (7), and the piston rod retreats, so that the conveyor belt rises to the specified position; S5. During the crushing operation, the discharge port locking cylinder (4) is always in a tensioned state under the action of the accumulator (5) to prevent the movable jaw from moving; The adjustment method of the whole machine position is as follows: T1. When the position of the whole machine needs to be adjusted, the whole machine is switched to the walking mode on the operation panel (8), and the controller (9) instructs the integrated valve group (3) to be energized to allow oil to flow into the rod chamber of the conveyor belt lifting cylinder (7), so that the piston rod of the conveyor belt lifting cylinder (7) moves backward, driving the conveyor belt to rise, thereby increasing the gap between the bottom of the conveyor belt and the ground, and avoiding scratches during walking; T2. After the position of the whole machine is adjusted, when the whole machine is switched to the working mode on the operation panel (8), the controller (9) instructs the integrated valve group (3) to be energized to drain the oil from the rod chamber of the conveyor belt lifting cylinder (7), and the piston rod of the conveyor belt lifting cylinder (7) retreats, so that the conveyor belt descends to the position of the previous working state, so as to facilitate the continuation of the crushing operation.

8. The method for using the jaw crusher discharge port and discharge height linkage system according to claim 7, characterized in that: In step S1, the solenoid valve I (33) is de-energized and in the disconnected state, and the solenoid valve IV (40) is energized to connect the discharge port locking cylinder (4) and the hydraulic oil tank (1) to release pressure; in step S3, the solenoid valve I (33) is energized to switch the working position, and the hydraulic oil enters the rod chamber of the discharge port locking cylinder (4).

9. The method for using the jaw crusher discharge port and discharge height linkage system according to claim 7, characterized in that: In step S2, the solenoid valve II (34) is energized to switch the working position, and the hydraulic oil enters the rodless part of the discharge port regulating cylinder (6).

10. The method for using the jaw crusher discharge port and discharge height linkage system according to claim 7, characterized in that: In step S4, the solenoid valve I (33) is energized to switch the working position, and the hydraulic oil enters the rod chamber of the conveyor belt lifting cylinder (7). In step T2, the solenoid valve I (33) is not energized, the solenoid valve III (35) is energized to switch the working position, and the rod chamber of the conveyor belt lifting cylinder (7) is drained.

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