A main fan oil cylinder quick reset device

Abstract

The invention discloses a main fan oil cylinder quick reset device, which relates to the technical field of oil cylinder operation. The key points of the technical scheme are: it comprises a reset device, comprising an oil cylinder frame arranged at the top of a support frame, an oil cylinder body is arranged inside the oil cylinder frame, a reset groove is provided on the surface of the oil cylinder frame, a reset guide rod is provided on the surface of the oil cylinder body, the position of the reset guide rod corresponds to the position of the reset groove, the lower end of the oil cylinder body is an oil cylinder rod, an oil cylinder connecting plate is provided at the connection between the oil cylinder body and the oil cylinder rod, and pin holes corresponding to the positions are provided on the oil cylinder frame and the oil cylinder connecting plate, so that the oil cylinder body can only move up and down by limiting the left and right movement of the reset guide rod in the reset groove, which not only completes the function of resetting the explosion-proof cover, but also realizes the function of quickly resetting the oil cylinder body, thereby improving the practicability of the device, and at the same time enhancing the degree of automation of the device, reducing the need for manual intervention, and reducing the occurrence of the explosion-proof cover skew and jamming phenomenon caused by manual intervention.

Description

Technical Field

[0001] The invention relates to the technical field of oil cylinder operation, and more specifically, to a main fan oil cylinder quick resetting device. Background Art

[0002] During the operation of the main ventilation fan, the reliable opening and closing of the explosion-proof cover is crucial. When a gas or coal dust explosion occurs underground, the powerful shock wave will break open the explosion-proof cover to release energy and protect the main ventilation equipment from damage. The cylinder plays an important role in controlling the opening and closing of the explosion-proof cover.

[0003] In the existing main fan explosion-proof cover opening and closing application, compared with the traditional manual operation method, it is not only time-consuming and labor-intensive, but also easy to cause the explosion-proof cover to fail to open or close normally due to improper operation. At the same time, due to the complex and changeable environment of the mine, the explosion-proof cover is prone to skew or jam during long-term use. Using a cylinder to control the opening and closing of the explosion-proof cover can greatly reduce the need for manual intervention and improve the overall safety and reliability of operation. However, when the cylinder controls the opening and closing of the explosion-proof cover, when the shock wave impacts the explosion-proof cover and the explosion-proof cover is lifted, the cylinder cannot retract immediately due to the contraction time. The cylinder will be lifted up with the explosion-proof cover. During the resetting process of the explosion-proof cover, the resetting of the cylinder is offset, which will cause the explosion-proof cover to be skewed and jammed as a whole, and when the cylinder is lifted up with the explosion-proof cover, it cannot be fixed, causing the limiter to always bear the weight of the explosion-proof cover, affecting the reset stability and long-term use of the explosion-proof cover.

[0004] Therefore, in order to solve the above technical problems, the present application proposes a main fan oil cylinder quick reset device. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a main fan oil cylinder rapid resetting device.

[0006] To achieve the above object, the present invention provides the following technical solutions: a main fan oil cylinder quick reset device, comprising an explosion-proof cover, a support frame arranged on one side of the explosion-proof cover and a crossbeam arranged on the upper end of the support frame, and also comprising: an electric push rod arranged on the crossbeam, the front end of the electric push rod is a push rod telescopic end, the push rod telescopic end is provided with a pin plate, and the pin plate is provided with a pin rod;

[0007] The reset device comprises a cylinder frame arranged at the top of the support frame, a cylinder body is arranged inside the cylinder frame, a reset groove is arranged on the surface of the cylinder frame, a reset guide rod is arranged on the surface of the cylinder body, the reset guide rod corresponds to the position of the reset groove, the lower end of the cylinder body is a cylinder rod, a cylinder connecting plate is arranged at the connection between the cylinder body and the cylinder rod, and pin holes corresponding to the positions are arranged on the cylinder frame and the cylinder connecting plate;

[0008] The limit assembly is used to fix the cylinder body lifted in the cylinder frame, including a limit groove opened on the surface of the cylinder frame, a limit gear is rotatably installed on the cylinder frame, a servo motor is provided on the cylinder frame, a driving gear is provided at the power output end of the servo motor, the limit gear is meshed with the driving gear, and a limit rod is provided at the bottom end of the limit gear. The rotation of the limit rod squeezes the reset guide rod to rotate into the limit groove to complete the fixing action of the cylinder body.

[0009] Preferably, a connecting frame is provided on the surface of the explosion-proof cover, an end of the cylinder rod is provided with a cylinder connecting sleeve, and the connecting frame is connected to the cylinder connecting sleeve.

[0010] Preferably, a limiter is provided on one side of the crossbeam, a limit block is provided at the end of the limiter, and the limit block is snap-connected with the explosion-proof cover.

[0011] Preferably, two groups of reset guide rods are provided on the surface of the cylinder body in an upper and lower distribution, each group of reset guide rods has four reset guide rods, and the four reset guide rods are arranged in an array along the circumference of the cylinder body.

[0012] Preferably, a rotating ring is provided on the surface of the oil cylinder body, and a group of reset guide rods on the upper surface of the oil cylinder body are fixedly connected to the rotating ring.

[0013] Preferably, a bearing ring is provided on the oil cylinder frame, a bearing needle is provided inside the bearing ring, and an outer ring of the bearing ring is fixedly connected to the limiting gear.

[0014] Preferably, the limiting groove is a transverse groove, the resetting groove is a vertical groove, and the limiting groove is located at the upper end of the resetting groove and is connected.

[0015] Preferably, the end portion where the limiting groove communicates with the reset groove is arc-shaped, the rear half of the communicating end between the limiting groove and the reset groove has an inclination, and the inner groove wall of the limiting groove is horizontal.

[0016] Preferably, a motor mounting plate is provided at the upper end of the oil cylinder frame, and the servo motor is fixedly mounted on the surface of the oil cylinder frame through the motor mounting plate.

[0017] Preferably, the limiting rod at the lower end of the limiting gear completes the rotation action between two adjacent reset guide rods.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, the electric push rod is retracted to retract the telescopic end of the push rod, so that the pin rod is pulled out from the pin hole at the bottom of the oil cylinder frame, the bottom of the oil cylinder is unlocked and fixed, the explosion-proof cover is lifted by the shock wave, and the reset guide rod on the surface of the oil cylinder body moves upward in the reset groove until the explosion-proof cover is lifted by the shock wave to the position of the limiter, and the explosion-proof cover is locked and fixed by the limit block at the lower end of the limiter, and the upper cylinder body of the oil cylinder body retracts. When the upper cylinder body retracts, the oil cylinder body moves close to the direction of the oil cylinder rod, so that the oil cylinder connecting plate at the lower end of the oil cylinder body contacts the bottom of the oil cylinder frame. At this time, the electric push rod starts to run again, and the telescopic end of the push rod drives the pin rod to be reinserted into the pin holes on the oil cylinder frame and the oil cylinder connecting plate, and the oil cylinder is completely retracted. The paired cylinder bodies are re-locked and the cylinder bodies are automatically reset. The staff unlocks the limit block. At this time, the cylinder body controls the cylinder rod to move downward and extend, driving the explosion-proof cover to move downward to complete the reset of the explosion-proof cover. The reset guide rod is restricted to the left and right in the reset groove so that the cylinder body can only move up and down. The connection between the limiter and the explosion-proof cover and the connection between the cylinder body and the electric push rod and the pin rod not only completes the reset function of the explosion-proof cover, but also realizes the rapid reset of the cylinder body, which improves the practicability of the device, enhances the degree of automation of the device, reduces the need for manual intervention, and reduces the occurrence of skew and jamming of the explosion-proof cover due to manual intervention.

[0020] 2. In the present invention, the driving gear is driven to rotate by the rotation of the servo motor, and the rotating driving gear drives the limit gear meshing therewith to rotate. Since the limit gear is installed on the bearing ring, the limit gear can drive the limit rod to rotate. At this time, the reset guide rod of the upper part is located on the rotating ring and can be squeezed into the transverse groove of the limit groove by the limit rod. Since the transverse groove wall of the limit groove is horizontal, the upper and lower positions of the reset guide rod are fixed, thereby realizing the position fixing function of the cylinder body. When the explosion-proof cover is lifted up by the explosion shock wave, the position is not only fixed by the limiter, but also fixed by the connection between the cylinder body and the explosion-proof cover, thereby protecting the use of the limiter, improving the service life of the device, and having better practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 It is a schematic diagram of the application scenario structure of the present invention;

[0023] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0024] Figure 3 for Figure 1The enlarged schematic diagram of point B in the middle;

[0025] Figure 4 It is a schematic diagram of the structure of the oil cylinder body in the present invention;

[0026] Figure 5 for Figure 4 The enlarged schematic diagram of the center C;

[0027] Figure 6 It is a structural schematic diagram of the oil cylinder frame in the present invention;

[0028] Figure 7 for Figure 6 The enlarged schematic diagram of point D in the middle;

[0029] Figure 8 for Figure 6 The enlarged schematic diagram of point E in the middle;

[0030] Fig. 9 It is a structural schematic diagram of the oil cylinder frame in another perspective of the present invention;

[0031] Fig.10 for Fig. 9 Enlarged schematic diagram of point F in the middle.

[0032] 1. Explosion-proof cover; 2. Support frame; 3. Crossbeam; 4. Electric push rod; 401. Telescopic end of push rod; 402. Pin plate; 403. Pin rod; 404. Pin hole; 5. Cylinder body; 501. Cylinder rod; 502. Cylinder connecting sleeve; 503. Reset guide rod; 504. Cylinder connecting plate; 6. Reset device; 601. Cylinder frame; 602. Reset groove; 603. Limit groove; 7. Stopper; 8. Limit block; 9. Connecting frame; 10. Limit assembly; 1001. Motor mounting plate; 1002. Servo motor; 1003. Driving gear; 1004. Bearing ring; 1005. Bearing needle roller; 1006. Limit gear; 1007. Limit rod; 1008. Rotating ring. DETAILED DESCRIPTION

[0033] Embodiment 1:

[0034] like Figure 1-10As shown, the present invention provides a main fan oil cylinder quick reset device, including an explosion-proof cover 1. It should be noted that a plurality of pressure sensors are installed inside the explosion-proof cover 1. When the pressure in the well is too large, the pressure sensor transmits to the external controller, and the electronic components of the control device are started. A support frame 2 is arranged on one side of the explosion-proof cover 1, and a crossbeam 3 is arranged on the upper end of the support frame 2. It also includes: an electric push rod 4 arranged on the crossbeam 3, the front end of the electric push rod 4 is a push rod telescopic end 401, the push rod telescopic end 401 is provided with a pin plate 402, and the pin plate 402 is provided with a pin rod 403. A stopper 7 is provided on one side of the crossbeam 3, and a limit block 8 is provided at the end of the stopper 7. The limit block 8 is connected with the explosion-proof cover 1 by snapping;

[0035] The reset device 6 comprises a cylinder frame 601 arranged at the top of the support frame 2, a cylinder body 5 is arranged inside the cylinder frame 601, a reset groove 602 is opened on the surface of the cylinder frame 601, a reset guide rod 503 is arranged on the surface of the cylinder body 5, and the reset guide rod 503 corresponds to the position of the reset groove 602. Two groups of reset guide rods 503 are arranged on the surface of the cylinder body 5 in an upper and lower manner, each group of reset guide rods 503 has four reset guide rods, and the four reset guide rods 503 are arranged in an array along the circumference of the cylinder body 5. The lower end of the cylinder body 5 is a cylinder rod 501, and the connection between the cylinder body 5 and the cylinder rod 501 is A cylinder connecting plate 504 is provided at the joint, and pin holes 404 corresponding to the positions are provided on the cylinder frame 601 and the cylinder connecting plate 504. When the pin rod 403 is inserted into the pin hole 404 on the surface of the cylinder frame 601, it is also inserted into the pin hole 404 on the cylinder connecting plate 504, thereby realizing the fixing effect of the pin rod 403 on the cylinder body 5, so that the cylinder body 5 can lift the explosion-proof cover 1 body to perform normal ventilation function when there is no shock wave. A connecting frame 9 is provided on the surface of the explosion-proof cover 1, and a cylinder connecting sleeve 502 is provided at the end of the cylinder rod 501, and the connecting frame 9 is connected to the cylinder connecting sleeve 502;

[0036] The electric push rod 4 contracts the push rod telescopic end 401, so that the pin rod 403 is pulled out from the pin hole 404 at the bottom of the cylinder frame 601, unlocking the bottom fixation of the oil cylinder, and the explosion-proof cover 1 is lifted by the shock wave. The reset guide rod 503 on the surface of the cylinder body 5 moves upward in the reset groove 602 until the explosion-proof cover 1 is lifted by the shock wave to the position of the limiter 7, and the explosion-proof cover 1 is locked and fixed by the limit block 8 at the lower end of the limiter 7, and the upper cylinder body of the cylinder body 5 retracts. When the upper cylinder body retracts, the cylinder body 5 moves toward the direction of the cylinder rod 501, so that the cylinder connecting plate 504 at the lower end of the cylinder body 5 contacts the bottom of the cylinder frame 601. At this time, the electric push rod 4 starts to run again, and the push rod telescopic end 401 drives the pin rod 403 to reinsert into the cylinder frame 601 and the cylinder connecting plate 504 The pin hole 404 is in the pin hole 404, completing the re-locking of the cylinder body 5 and the automatic reset of the cylinder body 5, the staff unlocks the limit block 8, at this time the cylinder body 5 controls the cylinder rod 501 to move and extend downward, driving the explosion-proof cover 1 to move downward to complete the reset of the explosion-proof cover 1, and the left and right limited movement of the reset guide rod 503 in the reset groove 602 is limited so that the cylinder body 5 can only move up and down, and the clamping connection between the limiter 7 and the explosion-proof cover 1 and the clamping connection between the cylinder body 5 and the electric push rod 4 and the pin rod 403 not only completes the function of resetting the explosion-proof cover 1, but also realizes the rapid reset of the cylinder body 5 body, thereby improving the practicability of the device, enhancing the degree of automation of the device, reducing the need for manual intervention, and reducing the occurrence of the skew and jamming phenomenon of the explosion-proof cover 1 caused by manual intervention.

[0037] Working principle: When an explosion occurs in the well, the electric push rod 4 reacts quickly and begins to retract the push rod telescopic end 401, so that the pin rod 403 is pulled out from the pin hole 404 at the bottom of the cylinder frame 601, unlocking the bottom fixation of the cylinder. At this time, the explosion-proof cover 1 is lifted by the shock wave, and the reset guide rod 503 on the surface of the cylinder body 5 moves upward in the reset groove 602 until the explosion-proof cover 1 is lifted by the shock wave to the position of the limiter 7, and the explosion-proof cover 1 is locked and fixed by the limit block 8 at the lower end of the limiter 7. When the explosion shock wave ends, the upper cylinder body of the cylinder body 5 retracts, and the upper cylinder body When retracting, the cylinder body 5 moves toward the direction of the cylinder rod 501, so that the cylinder connecting plate 504 at the lower end of the cylinder body 5 contacts the bottom of the cylinder frame 601. At this time, the electric push rod 4 starts to run again, and the telescopic end 401 of the push rod drives the pin rod 403 to be reinserted into the pin hole 404 on the cylinder frame 601 and the cylinder connecting plate 504, completing the re-locking of the cylinder body 5 and the automatic resetting of the cylinder body 5. The staff unlocks the limit block 8. At this time, the cylinder body 5 controls the cylinder rod 501 to move and extend downward, driving the explosion-proof cover 1 to move downward to complete the resetting of the explosion-proof cover 1.

[0038] Embodiment 2:

[0039] like Figure 1 , Figure 4 , Figure 6 , Figure 7 , Fig. 9 , Fig.10 As shown, the present invention provides a main fan oil cylinder quick reset device, including a limit assembly 10, which is used to fix the oil cylinder body 5 lifted in the oil cylinder frame 601, including a limit groove 603 opened on the surface of the oil cylinder frame 601, the limit groove 603 is a horizontal groove, and the reset groove 602 is a vertical groove. The limit groove 603 is located at the upper end of the reset groove 602 and is connected. The end connected by the limit groove 603 and the reset groove 602 is arc-shaped, and the rear half of the connecting end of the limit groove 603 and the reset groove 602 has an inclination, and the inner groove wall of the limit groove 603 is horizontal. It should be noted that the combination of the limit groove 603 and the reset groove 602 is T-shaped, and the connection between the limit groove 603 and the reset groove 602 is a curved transition. The curved transition can prevent the reset guide rod 503 from being stuck by the groove wall of the reset groove 602 when rotating;

[0040] A limit gear 1006 is rotatably mounted on the oil cylinder frame 601, a bearing ring 1004 is provided on the oil cylinder frame 601, a bearing needle 1005 is provided inside the bearing ring 1004, an outer ring of the bearing ring 1004 is fixedly connected to the limit gear 1006, a servo motor 1002 is provided on the oil cylinder frame 601, the servo motor 1002 is a motor that can be reversed and the rotation angle can be controlled in the prior art, a motor mounting plate 1001 is provided at the upper end of the oil cylinder frame 601, the servo motor 1002 is fixedly mounted on the surface of the oil cylinder frame 601 through the motor mounting plate 1001, and the servo motor 1002 is fixedly mounted on the surface of the oil cylinder frame 601. A driving gear 1003 is provided at the power output end of 02, a limiting gear 1006 is meshed with the driving gear 1003, a limiting rod 1007 is provided at the bottom end of the limiting gear 1006, a rotating ring 1008 is provided on the surface of the oil cylinder body 5, a group of reset guide rods 503 on the upper surface of the oil cylinder body 5 is fixedly connected with the rotating ring 1008, the limiting rod 1007 rotates to squeeze the reset guide rod 503 to rotate into the limiting groove 603 to complete the fixing action of the oil cylinder body 5, and the limiting rod 1007 at the lower end of the limiting gear 1006 completes the rotation action between the two adjacent reset guide rods 503;

[0041] The rotation of the servo motor 1002 drives the driving gear 1003 to rotate, and the rotating driving gear 1003 drives the limiting gear 1006 meshing therewith to rotate. Since the limiting gear 1006 is installed on the bearing ring 1004, the limiting gear 1006 can drive the limiting rod 1007 to rotate. At this time, the reset guide rod 503 of the upper part is located on the rotating ring 1008 and can be squeezed into the transverse groove of the limiting groove 603 by the limiting rod 1007. Since the transverse groove wall of the limiting groove 603 is horizontal, the upper and lower positions of the reset guide rod 503 are fixed, realizing the position fixing function of the cylinder body 5, so that when the explosion-proof cover 1 is lifted up by the explosion shock wave, it is not only fixed in position by the limiter 7, but also fixed by the connection between the cylinder body 5 and the explosion-proof cover 1, thereby protecting the use of the limiter 7, improving the service life of the device, and having better practicality.

[0042] Working principle: When the limit block 8 locks and fixes the explosion-proof cover 1, a group of reset guide rods 503 on the upper part of the cylinder body 5 are at the connection between the limit groove 603 and the reset groove 602. At this time, the servo motor 1002 rotates to drive the driving gear 1003 to rotate, and the rotating driving gear 1003 drives the limit gear 1006 meshing therewith to rotate. Since the limit gear 1006 is installed on the bearing ring 1004, the limit gear 1006 can drive the limit rod 1007 to rotate. At this time, the reset guide rod 503 on the upper part is located on the rotating ring 1008 and can be squeezed into the transverse groove of the limit groove 603 by the limit rod 1007. Since the transverse groove wall of the limit groove 603 is horizontal, the upper and lower positions of the reset guide rod 503 are fixed.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A main fan oil cylinder quick reset device, comprising an explosion-proof cover (1), a support frame (2) arranged on one side of the explosion-proof cover (1), and a crossbeam (3) arranged on the upper end of the support frame (2), characterized in that: Also includes: An electric push rod (4) is arranged on the crossbeam (3), the front end of the electric push rod (4) being a push rod telescopic end (401), one end of the push rod telescopic end (401) being provided with a pin plate (402), and the pin plate (402) being provided with a pin rod (403); The reset device (6) comprises a cylinder frame (601) arranged at the top of the support frame (2), a cylinder body (5) being arranged inside the cylinder frame (601), a reset groove (602) being provided on the surface of the cylinder frame (601), a reset guide rod (503) being provided on the surface of the cylinder body (5), the reset guide rod (503) corresponding to the position of the reset groove (602), two groups of reset guide rods (503) being arranged on the surface of the cylinder body (5) in an upper and lower distribution, each group of reset guide rods (503) having four reset guide rods, and the four reset guide rods (503) are arranged in an array along the circumference of the cylinder body (5), the lower end of the cylinder body (5) is a cylinder rod (501), a cylinder connecting plate (504) is provided at the connection between the cylinder body (5) and the cylinder rod (501), and pin holes (404) corresponding in position are provided on the cylinder frame (601) and the cylinder connecting plate (504); A connecting frame (9) is provided on the surface of the explosion-proof cover (1); a cylinder connecting sleeve (502) is provided at the end of the cylinder rod (501); the connecting frame (9) is connected to the cylinder connecting sleeve (502); a stopper (7) is provided on one side of the crossbeam (3); a stopper block (8) is provided at the end of the stopper (7); the stopper block (8) is engaged and connected with the explosion-proof cover (1); The limiting assembly (10) is used to fix the oil cylinder body (5) lifted in the oil cylinder frame (601), comprising a limiting groove (603) provided on the surface of the oil cylinder frame (601), a limiting gear (1006) being rotatably mounted on the oil cylinder frame (601), a servo motor (1002) being provided on the oil cylinder frame (601), a driving gear (1003) being provided at the power output end of the servo motor (1002), the limiting gear (1006) being meshed with the driving gear (1003), a limiting rod (1007) being provided at the bottom end of the limiting gear (1006), the limiting rod (1007) being rotated to squeeze the reset guide rod (503) to rotate into the limiting groove (603) to complete the fixing action of the oil cylinder body (5), and the surface of the oil cylinder body (5) is provided with A rotating ring (1008), a group of reset guide rods (503) on the upper surface of the oil cylinder body (5) are fixedly connected to the rotating ring (1008), a bearing ring (1004) is provided on the oil cylinder frame (601), a bearing needle (1005) is provided inside the bearing ring (1004), the outer ring of the bearing ring (1004) is fixedly connected to the limit gear (1006), the limit groove (603) is a horizontal groove, the reset groove (602) is a vertical groove, the limit groove (603) is located at the upper end of the reset groove (602) and is connected, the end portion where the limit groove (603) and the reset groove (602) are connected is an arc shape, the rear half of the end where the limit groove (603) and the reset groove (602) are connected has an inclination, and the inner groove wall of the limit groove (603) is horizontal.

2. A main fan oil cylinder quick reset device according to claim 1, characterized in that: A motor mounting plate (1001) is provided at the upper end of the oil cylinder frame (601), and the servo motor (1002) is fixedly mounted on the surface of the oil cylinder frame (601) via the motor mounting plate (1001).

3. A main fan oil cylinder quick reset device according to claim 1, characterized in that: The limiting rod (1007) at the lower end of the limiting gear (1006) completes a rotational action between two adjacent reset guide rods (503).

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