Hydraulic drive complete equipment for opening and closing furnace door of heating furnace

Abstract

The utility model discloses hydraulic drive complete equipment for opening and closing a furnace door of a heating furnace, which belongs to the technical field of heating furnace equipment and comprises a lifting door, a hydraulic cylinder, a chain, a first chain wheel, a second chain wheel and a control mechanism, the hydraulic cylinder is provided with a piston rod, a first oil port and a second oil port, one end of the chain is connected with the lifting door, and the other end of the chain is connected with the piston rod. The control mechanism is arranged on the first chain wheel and the second chain wheel in a winding mode and comprises an oil pump, an energy accumulator and an electromagnetic valve, and the electromagnetic valve is communicated with the second oil port, the oil pump and the energy accumulator through pipelines. By means of the structure, when the overhead door descends by means of self weight, the electromagnetic valve is used for guiding high-pressure media discharged by the hydraulic cylinder to enter the energy accumulator to store energy, when the overhead door is opened and ascends, the energy in the energy accumulator is released to assist the oil pump to jointly drive the hydraulic cylinder, and the energy recycling device has the advantages of recycling energy and reducing operation energy consumption of equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating furnace equipment technical field especially relates to heating furnace furnace door opening and closing is complete equipment of hydraulic drive. BACKGROUND

[0002] The heating furnace is widely used in industrial production heat equipment, and the furnace door is the passageway of material, and needs to be frequently opened and closed, and since the furnace door of the heating furnace is usually large and heavy, in order to provide stable and sufficient driving force, the existing heating furnace door opening and closing equipment adopts the hydraulic drive mode to realize.

[0003] In the conventional hydraulic drive scheme, when opening the furnace door, the hydraulic pump station needs to output high-pressure oil to drive the hydraulic cylinder to act, and the huge gravity of the furnace door is lifted, and this process needs to consume a large amount of electric energy, and when closing the furnace door, the hydraulic valve is usually controlled to release pressure, and the lifting door is lowered by its own gravity.

[0004] In this descending process, the large amount of gravitational potential energy of the furnace door is released, and these energies are usually dissipated in the form of heat energy through throttling valves and other elements in the hydraulic circuit, or directly return to the oil tank, without any effective utilization, which leads to a great waste of energy, and the high-energy-consumption opening and no-recycling closing working cycle makes the operation energy consumption of the whole set of equipment high, increases the production cost, and does not meet the current energy-saving and emission-reducing industrial development trend.

[0005] Therefore, the utility model provides heating furnace furnace door opening and closing complete equipment of hydraulic drive to solve the shortage of prior art. UTILITY MODEL CONTENTS

[0006] In view of the problems that the gravitational potential energy is wasted when the lifting door is closed by gravity, and the hydraulic pump needs to consume all the energy when opening, the utility model aims at providing a heating furnace furnace door opening and closing complete equipment of hydraulic drive with improved structure, which can effectively solve the above problems.

[0007] The utility model provides heating furnace furnace door opening and closing complete equipment of hydraulic drive, include: lifting door, hydraulic cylinder, chain, first sprocket and second sprocket, the hydraulic cylinder is provided with telescopic piston rod, first oil port and second oil port, one end of the chain is fixedly connected to the lifting door, the other end of the chain is fixedly connected to the piston rod, and the chain is arranged on the first sprocket and the second sprocket,

[0008] The device also comprises a control mechanism for energy recovery, wherein the control mechanism comprises an oil pump, an accumulator and a solenoid valve, and the solenoid valve is connected to the second oil port of the hydraulic cylinder, the outlet of the oil pump and the accumulator through pipelines respectively, and the switching control of the solenoid valve on the hydraulic pipeline realizes the cooperative work among the hydraulic cylinder, the oil pump and the accumulator.

[0009] Preferably, the control mechanism further comprises a hydraulic pump station and an oil filling module, and the oil pump and the oil filling module both obtain hydraulic medium from the hydraulic pump station, and the oil filling module is connected to the hydraulic circuit of the hydraulic cylinder through a pipeline, which ensures that the system has a stable source of hydraulic medium and can compensate for leakage in time.

[0010] Preferably, the device further comprises an electrical control device electrically connected to the oil pump, the oil filling module and the solenoid valve, and the electrical control device can automatically coordinate the start-stop of the oil pump, the compensation of the oil filling module and the reversing action of the solenoid valve, so as to realize accurate control of the energy recovery and driving process.

[0011] Preferably, the control mechanism further comprises a driving mechanism for providing power for the oil pump, and the driving mechanism comprises a motor, a first gear connected to the output end of the motor and a second gear connected to the input end of the oil pump and engaged with the first gear, so as to drive the oil pump by using the motor and gear transmission, which has stable structure and high transmission efficiency.

[0012] Further, as an optimization of the driving mechanism, the driving mechanism further comprises a mounting block, and the oil pump is fixedly installed through the mounting block, which facilitates accurate positioning and stable assembly of the oil pump on the device.

[0013] Preferably, the device further comprises a fixing block, and the hydraulic cylinder is fixedly installed through the fixing block, which provides a stable installation basis for the hydraulic cylinder and ensures that it will not be displaced or vibrated when driving the heavy lifting door.

[0014] Preferably, the device further comprises a sealing groove, and the side edge of the lifting door is slidingly arranged in the sealing groove, which not only provides guidance for the vertical movement of the lifting door and ensures its smooth lifting, but also plays a sealing role for the furnace port when the lifting door is closed, preventing heat leakage.

[0015] Preferably, the device further comprises a limiting mechanism arranged at the terminal position of the lifting door in the upward stroke, and the limiting mechanism comprises a mounting seat, a supporting shaft, a fixing screw, a rotating roller and an inclined support, the supporting shaft is fixed to the mounting seat through the fixing screw, the rotating roller is rotatably installed on the mounting seat through the supporting shaft, and the inclined support is fixedly connected to the outer side of the mounting seat, when the lifting door is lifted in place, the rotating roller rotatably abuts against the lifting door to provide accurate limiting and stable support, and the inclined support enhances the structural strength and stability of the entire limiting mechanism.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model discloses a control mechanism containing an energy accumulator and a solenoid valve, when the lifting door is lowered by gravity, the high-pressure medium discharged by the hydraulic cylinder is guided to enter the energy accumulator to store energy, and when the lifting door is opened and rises, the energy in the energy accumulator is released to assist the oil pump to drive the hydraulic cylinder together, which solves the problems of high energy consumption and waste of gravitational potential energy in the prior art, and achieves the technical effects of energy recycling and reducing equipment operation energy consumption.

[0018] 2. The utility model discloses a limiting mechanism composed of a mounting seat, a rotating roller and an inclined strut, when the lifting door rises to the terminal position, the rotating roller is used to abut and support the lifting door, which solves the problems of shaking or inaccurate positioning of the heavy furnace door when rising to the position, and achieves the technical effects of accurate positioning and stable support, and improves the safety and reliability of equipment operation.

[0019] 3. The utility model discloses a transmission mode of a hydraulic cylinder driving a chain and a chain wheel, and a sealing groove with a guide rail function is arranged, which solves the double problems of smooth and large driving force of the heavy furnace door and effective sealing of the heating furnace opening, and achieves the technical effects of stable driving, compact structure, and integration of sliding guide of the lifting door and sealing function of the opening. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic view of the hydraulic drive complete equipment for opening and closing the furnace door of the heating furnace.

[0021] Figure 2 It is a structural schematic view of the lifting door of the hydraulic drive complete equipment for opening and closing the furnace door of the heating furnace.

[0022] Figure 3 It is a structural schematic view of the control mechanism of the hydraulic drive complete equipment for opening and closing the furnace door of the heating furnace.

[0023] Figure 4 It is a structural schematic view of the driving mechanism of the hydraulic drive complete equipment for opening and closing the furnace door of the heating furnace.

[0024] Figure 5 It is a structural schematic view of the limiting mechanism of the hydraulic drive complete equipment for opening and closing the furnace door of the heating furnace.

[0025] Figure 6 It is a system diagram of the control mechanism of the hydraulic drive complete equipment for opening and closing the furnace door of the heating furnace.

[0026] LEGEND:

[0027] 1, overhead door; 2, chain; 3, first sprocket; 4, second sprocket; 5, piston rod; 6, hydraulic cylinder; 7, control mechanism; 701, hydraulic pump station; 702, accumulator; 703, solenoid valve; 704, oil pump; 705, fixed block; 706, oil filling module; 707, first oil port; 708, second oil port; 709, driving mechanism; 7091, motor; 7092, first gear; 7093, second gear; 7094, mounting block; 8, sealing groove; 9, limiting mechanism; 901, mounting seat; 902, support shaft; 903, rotating roller; 904, inclined strut; 905, fixing screw; 10, electrical control equipment. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] Please refer to Figures 1 to 6 The hydraulic drive complete equipment for opening and closing the furnace door of a heating furnace provided in the embodiments of the present application aims to solve the problem that in the prior art, the gravitational potential energy is wasted when the furnace door of a heating furnace is closed under its own weight, and the hydraulic pump needs to consume all the energy when the furnace door is opened, resulting in high overall energy consumption.

[0030] As shown in Figure 1 and Figure 2 , the hydraulic drive complete equipment for opening and closing the furnace door of a heating furnace comprises an overhead door 1, and a hydraulic drive system for driving the overhead door 1 to open and close. The hydraulic drive system comprises a hydraulic cylinder 6, which is provided with a telescopic piston rod 5, a first oil port 707 and a second oil port 708. In order to realize the installation of the hydraulic cylinder 6, a fixed block 705 is further provided, and the hydraulic cylinder 6 is fixedly installed through the fixed block 705. A sealing groove 8 is further provided on both sides of the track of the movement of the overhead door 1, and the side edge of the overhead door 1 is slidingly arranged in the sealing groove 8, so as to seal the furnace port when the overhead door 1 is closed, and to provide guidance for the up-and-down sliding of the overhead door 1.

[0031] The driving force is transmitted through a chain transmission mechanism, which comprises a chain 2, a first sprocket 3 and a second sprocket 4. One end of the chain 2 is fixedly connected to the top of the overhead door 1, and the other end of the chain 2 is fixedly connected to the top of the piston rod 5. The chain 2 is wound on the first sprocket 3 and the second sprocket 4. When the piston rod 5 of the hydraulic cylinder 6 extends and retracts, the overhead door 1 is driven to slide up and down in the sealing groove 8 through the chain 2, the first sprocket 3 and the second sprocket 4.

[0032] The control mechanism 7 for energy recovery is provided, which integrally manages the flow path and pressure of the hydraulic medium, and realizes the driving control and energy recovery of the lifting door 1.

[0033] To solve the above technical problems, the technical scheme of the embodiment is that the hydraulic drive complete equipment for opening and closing the furnace door of the heating furnace further comprises an accumulator 702 and an electromagnetic valve 703 in the control mechanism 7, and the accumulator 702 and the electromagnetic valve 703 form a specific structure cooperation and connection relationship with the hydraulic cylinder 6, so that the energy recovery of the hydraulic medium is realized.

[0034] Please focus on Figure 3 and Figure 6 , the core structure will be described in detail below, the control mechanism 7 comprises an oil pump 704, an accumulator 702 and an electromagnetic valve 703, the electromagnetic valve 703 is connected with the second oil port 708 of the hydraulic cylinder 6, the outlet of the oil pump 704 and the accumulator 702 through pipelines, and the electromagnetic valve 703 controls the flow path of the hydraulic medium between the hydraulic cylinder 6 and the accumulator 702, wherein the accumulator 702 is used for storing the energy of the high-pressure hydraulic medium, so as to convert the gravitational potential energy released when the lifting door 1 is lowered into the pressure potential energy of the hydraulic medium.

[0035] The control mechanism 7 further comprises a hydraulic pump station 701 and an oil filling module 706, the oil pump 704 and the oil filling module 706 both obtain the hydraulic medium from the hydraulic pump station 701, the hydraulic pump station 701 is used for providing a sufficient hydraulic medium source, and the oil filling module 706 is connected with the hydraulic circuit of the hydraulic cylinder 6 through a pipeline, which is used for compensating the inevitable medium leakage in the system operation, and establishing the working pressure when the system is started for the first time.

[0036] Meanwhile, the control mechanism 7 further comprises a driving mechanism 709, which is used for driving the oil pump 704 to work, the driving mechanism 709 comprises a motor 7091, a first gear 7092 connected with the output end of the motor 7091 and a second gear 7093 connected with the input end of the oil pump 704 and engaged with the first gear 7092, when the motor 7091 is started, the first gear 7092 is driven to rotate, and then the oil pump 704 is driven to work through the second gear 7093, the oil pump 704 is fixedly installed through a mounting block 7094, and the other side of the piston rod 5 of the hydraulic cylinder 6 is further provided with a first oil port 707, which is used for emptying the air in the hydraulic cylinder 6 or discharging the hydraulic medium in the other cavity.

[0037] In order to realize the control and monitoring of the whole system, the device is further provided with an electrical control device 10 electrically connected to the oil pump 704, the oil filling module 706 and the electromagnetic valve 703, for receiving operation instructions and controlling the start-stop and action of the corresponding components, ensuring the accurate operation of the system.

[0038] On the basis of the above-mentioned embodiments, the utility model further can include the following preferred technical solutions:

[0039] As a preferred embodiment, in order to ensure that the control mechanism 7 has a reliable hydraulic medium source and compensation capacity, please refer to Figure 3 And Figure 6 The control mechanism 7 further includes a hydraulic pump station 701 and an oil filling module 706, and the oil pump 704 and the oil filling module 706 both obtain hydraulic medium from the hydraulic pump station 701, and the oil filling module 706 is communicated with the hydraulic circuit of the hydraulic cylinder 6 through a pipeline.

[0040] As a preferred embodiment, in order to realize automatic control, please refer to Figure 6 The device further includes an electrical control device 10 electrically connected to the oil pump 704, the oil filling module 706 and the electromagnetic valve 703.

[0041] As a preferred embodiment, in order to provide driving force for the oil pump 704, please refer to Figure 4 The control mechanism 7 further includes a driving mechanism 709, which includes a motor 7091, a first gear 7092 connected to the output end of the motor 7091, and a second gear 7093 connected to the input end of the oil pump 704 and meshed with the first gear 7092.

[0042] As a preferred embodiment, in order to facilitate the installation of the oil pump 704, please refer to Figure 4 The driving mechanism 709 further includes a mounting block 7094, and the oil pump 704 is fixedly installed through the mounting block 7094.

[0043] As a preferred embodiment, in order to ensure the stable installation of the hydraulic cylinder 6, please refer to Figure 1 And Figure 3 The device further includes a fixing block 705, and the hydraulic cylinder 6 is fixedly installed through the fixing block 705.

[0044] As a preferred embodiment, in order to ensure the sealing performance of the heating furnace and the stable guidance of the lifting door 1, please refer to Figure 2 The device further includes a sealing groove 8, and the side edge of the lifting door 1 is slidingly arranged in the sealing groove 8.

[0045] As a preferred embodiment, in order to accurately limit and support the upward stroke of the lifting door 1, please refer to Figure 5The device further comprises a limiting mechanism 9 arranged at the terminal position of the lifting door 1 in the lifting stroke, the limiting mechanism 9 comprises a mounting base 901, a supporting shaft 902 is arranged on the mounting base 901, a rotating roller 903 is rotatably arranged on the mounting base 901 through the supporting shaft 902, the supporting shaft 902 is fixed on the mounting base 901 through a fixing screw 905, and a diagonal brace 904 is fixedly connected to the outer side of the mounting base 901 so as to enhance the structural stability of the mounting base 901.

[0046] The working principle of the hydraulic drive complete equipment for opening and closing the furnace door of the heating furnace is as follows:

[0047] When it is needed to close the furnace door, the lifting door 1 starts to descend under the action of the weight, the side edge of the lifting door 1 slides in the sealing groove 8, the lifting door 1 drives the piston rod 5 to move upwards and extend the hydraulic cylinder 6 through the fixedly connected chain 2, the extension action of the piston rod 5 extrudes the hydraulic medium in the hydraulic cylinder 6, the high-pressure hydraulic medium flows out from the second oil port 708, at this time, the electric control equipment 10 controls the electromagnetic valve 703 to establish the first communication path between the second oil port 708 and the accumulator 702, and the high-pressure hydraulic medium enters the accumulator 702 to convert the gravitational potential energy of the lifting door 1 into pressure potential energy and store it.

[0048] When it is needed to open the furnace door, the electric control equipment 10 sends an instruction, on one hand, controls the accumulator 702 to release the stored high-pressure hydraulic medium, and on the other hand, starts the motor 7091 in the driving mechanism 709, the motor 7091 drives the first gear 7092 to rotate, the first gear 7092 drives the second gear 7093 to rotate through meshing, the second gear 7093 further drives the oil pump 704 to work, the oil pump 704 extracts the hydraulic medium from the hydraulic pump station 701 and pressurizes, the oil pump 704 is fixedly installed by the mounting block 7094, at this time, the electric control equipment 10 controls the electromagnetic valve 703 to establish the second communication path between the accumulator 702, the oil pump 704 and the second oil port 708, after two high-pressure hydraulic mediums from the accumulator 702 and the oil pump 704 are converged, the two high-pressure hydraulic mediums enter the hydraulic cylinder 6 through the second oil port 708, push the piston rod 5 to move downwards and retract the hydraulic cylinder 6, the hydraulic cylinder 6 is kept fixed through the fixing block 705, the retraction of the piston rod 5 pulls the lifting door 1 through the chain 2, the chain 2 is guided by the first sprocket 3 and the second sprocket 4, and the lifting door 1 slides upwards in the sealing groove 8, so that the furnace door is opened.

[0049] When the lifting door 1 rises to the terminal position of the rising stroke, the lifting door 1 contacts the limiting mechanism 9, the rotating roller 903 on the limiting mechanism 9 rotates and provides support and limiting, the rotating roller 903 is rotatably installed on the mounting seat 901 through the supporting shaft 902, the supporting shaft 902 is fixed through the fixing screw 905, the mounting seat 901 is fixedly connected by the inclined support 904 to strengthen the stability, during the system operation, the electrical control equipment 10 also controls the oil filling module 706 to supplement the hydraulic medium from the hydraulic pump station 701, the first oil port 707 on the hydraulic cylinder 6 is used for emptying the air in the hydraulic cylinder 6 or discharging the hydraulic medium of another cavity, through the cooperation of the accumulator 702 and the oil pump 704 in the control mechanism 7, the recovered energy is used when the furnace door is opened, and the problem of high energy consumption in the prior art is solved.

[0050] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be modified to the technical solutions recorded in the foregoing embodiments, or equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A complete set of hydraulic drive equipment for opening and closing the furnace door of a heating furnace, comprising a lifting door (1), a hydraulic cylinder (6), a chain (2), a first chain wheel (3) and a second chain wheel (4), the hydraulic cylinder (6) is provided with a retractable piston rod (5), a first oil port (707) and a second oil port (708), one end of the chain (2) is fixedly connected to the lifting door (1), the other end of the chain (2) is fixedly connected to the piston rod (5), and the chain (2) is arranged on the first chain wheel (3) and the second chain wheel (4). characterized in that The equipment further comprises a control mechanism (7), the control mechanism (7) comprises an oil pump (704), an accumulator (702) and a solenoid valve (703), and the solenoid valve (703) is communicated with the second oil port (708), the outlet of the oil pump (704) and the accumulator (702) through pipelines.

2. The hydraulic drive complete for opening and closing a furnace door of a heating furnace according to claim 1, characterized by The control mechanism (7) further comprises a hydraulic pump station (701) and an oil filling module (706), the oil pump (704) and the oil filling module (706) both obtain hydraulic medium from the hydraulic pump station (701), and the oil filling module (706) is communicated with the hydraulic circuit of the hydraulic cylinder (6) through a pipeline.

3. The hydraulic drive complete for opening and closing the furnace door of a heating furnace according to claim 2, characterized in that, The equipment further comprises an electrical control device (10), and the electrical control device (10) is electrically connected to the oil pump (704), the oil filling module (706) and the solenoid valve (703).

4. The hydraulic drive complete for opening and closing a furnace door of a heating furnace according to claim 1, characterized by The control mechanism (7) further comprises a driving mechanism (709), the driving mechanism (709) is used for driving the oil pump (704), and the driving mechanism (709) comprises a motor (7091), a first gear (7092) connected with the output end of the motor (7091) and a second gear (7093) connected with the input end of the oil pump (704) and engaged with the first gear (7092).

5. The hydraulic drive complete for opening and closing the furnace door of a heating furnace according to claim 4, characterized in that, The driving mechanism (709) further comprises a mounting block (7094), and the oil pump (704) is fixedly installed through the mounting block (7094).

6. The hydraulic drive complete for opening and closing a furnace door of a heating furnace according to claim 1, characterized by The equipment further comprises a fixing block (705), and the hydraulic cylinder (6) is fixedly installed through the fixing block (705).

7. The hydraulic drive complete for opening and closing a furnace door of a heating furnace according to claim 1, characterized by The equipment further comprises a sealing groove (8), and the side edge of the lifting door (1) is slidingly arranged in the sealing groove (8).

8. The hydraulic drive complete for opening and closing a furnace door of a heating furnace according to claim 1, characterized by The equipment further comprises a limiting mechanism (9), the limiting mechanism (9) is arranged at the terminal position of the upward stroke of the lifting door (1), and the limiting mechanism (9) comprises a mounting seat (901), a supporting shaft (902), a fixing screw (905), a rotating roller (903) and an inclined support (904), the supporting shaft (902) is fixed to the mounting seat (901) through the fixing screw (905), the rotating roller (903) is rotatably installed on the mounting seat (901) through the supporting shaft (902), and the inclined support (904) is fixedly connected to the outer side of the mounting seat (901).

Images