A stroke amplification mechanism and a piercing device

Abstract

The present invention relates to a stroke amplification mechanism and a piercing device, the stroke amplification mechanism comprising: a frame; a guide track, the guide track comprising a first guide track and a second guide track; a trolley, the trolley is slidably arranged on the first guide track; a telescopic assembly, used to push and pull the trolley, the telescopic end of the telescopic assembly is fixed on the trolley; and a transmission mechanism, the transmission mechanism is provided with two, the two transmission mechanisms have the same structure, and are respectively located on both sides of the telescopic assembly. Through the cooperation of the pulley block and the redirecting gear, sufficient stroke can be achieved in a limited space.

Description

Technical Field

[0001] The invention relates to the technical field of metal smelting, and in particular to a stroke amplification mechanism and a piercing device. Background Art

[0002] In the process of metal smelting, it is inevitable that large pieces of material will enter the smelting furnace. When the large pieces of material cannot be melted in the furnace within a period of time, they will block the discharge channel of the melt and affect normal production.

[0003] Since the operating space on site is narrow and not suitable for large-stroke equipment operation, in order to ensure the normal discharge of the melt, operators need to be arranged to perform manual poking operations. Due to environmental factors such as high temperature radiation, melt splashing, and toxic fumes on site, the operator's manual poking operation is inefficient and poses safety hazards.

[0004] Therefore, how to improve the efficiency of the piercing operation and reduce the risk of the operating position is an urgent problem to be solved. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a stroke amplification mechanism and a stabbing device, aiming to solve the problems of low stabbing operation efficiency and high risk of operating positions due to site limitations in existing stabbing operations.

[0006] A stroke amplification mechanism, comprising:

[0007] frame;

[0008] A guide track, wherein the guide track includes a first guide track and a second guide track;

[0009] The first guide rail is arranged at the upper part of the frame; the second guide rail is arranged at the lower part of the frame;

[0010] A traveling trolley, wherein the traveling trolley is slidably arranged on the first guide rail;

[0011] A telescopic assembly, arranged on the upper part of the frame and used for pushing and pulling the traveling trolley, wherein the telescopic end of the telescopic assembly is fixed on the traveling trolley; and

[0012] Transmission mechanism, wherein two transmission mechanisms are provided, the two transmission mechanisms have the same structure, and are respectively located on both sides of the telescopic assembly;

[0013] The power transmission mechanism includes a first roller and a second roller arranged on the walking trolley; a redirecting gear arranged on the upper part of the frame and cooperating with the first roller, and a first fixed pulley arranged on the lower part of the frame and cooperating with the redirecting gear; a slidable trolley arranged on the second guide rail; a second fixed pulley arranged on the lower part of the frame, and a third fixed pulley arranged on the upper part of the frame and cooperating with the second roller; and a chain, the chain includes a first chain and a second chain, one end of the first chain passes through the first roller, the redirecting gear and the first fixed pulley in sequence, and is fixed to the trolley, and the other end is arranged on the upper part of the frame away from the third fixed pulley; one end of the second chain is fixed to the trolley, and the other end passes through the second fixed pulley, the third fixed pulley and the second roller in sequence, and is arranged on the upper part of the frame close to the third fixed pulley.

[0014] The stroke amplification mechanism can achieve sufficient stroke in a limited space through the cooperation of the pulley block and the redirecting gear.

[0015] Optionally, in the stroke amplification mechanism, the telescopic component is a telescopic cylinder.

[0016] Based on the same inventive concept, the present invention also provides a piercing device, comprising:

[0017] A stroke amplification mechanism, wherein the stroke amplification mechanism is as described above;

[0018] Drill rod;

[0019] a support seat, on which the lower portion of the frame of the stroke amplification mechanism is arranged; and

[0020] The drill rod clamping mechanism comprises a clamping device arranged on the poking trolley and a fulcrum arranged at the lower part of the frame and eccentrically with the second fixed pulley.

[0021] The above-mentioned piercing device can replace manual piercing operations by driving the drill rod on the drill rod clamping mechanism to perform reciprocating motion through the stroke amplification mechanism, thereby improving the piercing efficiency.

[0022] Optionally, the stabbing device further comprises:

[0023] A walking guide rail, wherein the walking guide rail comprises a first walking guide rail and a second walking guide rail; the first walking guide rail and the second walking guide rail both comprise a C-shaped inner surface;

[0024] An automatic tensioning wheel, the fixed end of which is connected to the upper part of the frame, and the wheel contacts the bottom of the C-shaped inner surface of the first walking track;

[0025] The motion mechanism includes a reducer, a driving gear connected to the reducer, and a fixed rack matched with the driving gear; wherein the driving gear is arranged on the output shaft of the reducer and contacts with the bottom of the C-shaped inner surface of the second walking track; the fixed rack is arranged on the top of the C-shaped inner surface of the second walking track, and the driving gear is meshed with the fixed rack to drive the frame to move.

[0026] Optionally, in the poking device, the motion mechanism further comprises a clutch mechanism, and the clutch mechanism is connected to the reducer and is used to disengage the gear from the rack.

[0027] Optionally, the poking device, wherein the clamping device includes a main body, a hook-shaped portion is provided at one end of the main body, a accommodating cavity is provided inside the main body, a clamping component assembly for cooperating with the hook-shaped portion to clamp the drill rod is provided in the accommodating cavity, and a pressing handle is provided at the other end of the clamping component.

[0028] Optionally, in the stabbing device, the clamping assembly includes a clamping piece and an elastic piece sleeved on the clamping piece, and the elastic piece is compressed by pressing the handle to provide the clamping assembly with the force required for clamping.

[0029] Optionally, in the stabbing device, the end surface of the frame facing the smelting furnace is an inclined surface.

[0030] Optionally, the stabbing device further includes a retractable cylinder, which is connected to the fulcrum for retracting and extending the fulcrum.

[0031] Optionally, the stabbing device further includes a protective device, which is wrapped around the outer surface of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of the structure of a stroke amplification mechanism provided by an embodiment of the present invention;

[0033] Figure 2 A schematic diagram of the structure of a piercing device provided by an embodiment of the present invention from a first perspective;

[0034] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0035] Figure 4 A schematic diagram of the structure of a piercing device provided by an embodiment of the present invention from a second viewing angle;

[0036] Figure 5 A schematic diagram of the structure of a piercing device provided by an embodiment of the present invention from a third viewing angle;

[0037] Figure 6 A schematic diagram of the structure of a reducer with a clutch mechanism provided in an embodiment of the present invention;

[0038] Figure 7 A schematic diagram of the structure of a clamping device provided in an embodiment of the present invention;

[0039] Figure 8 This is a schematic diagram of the telescopic bracket structure provided by an embodiment of the present invention.

[0040] Description of reference numerals:

[0041] 10-stroke amplification mechanism; 100-frame; 110-first guide rail; 190-second guide rail; 120-traveling trolley; 130-first roller; 140-second roller; 170-telescopic assembly; 171-telescopic end; 180-redirecting gear; 200-first fixed pulley; 210-first chain; 220-poking trolley; 230-second fixed pulley; 240-third fixed pulley; 250-second chain; 30-drill rod; 40-support seat; 500-clamping device; 501-body; 502- Clamping assembly; 503-accommodating chamber; 504-hook-shaped part; 510-fulcrum; 520-retracting cylinder; 5020-clamping member; 5021-elastic member; 5022-pressing handle; 60-travel guide rail; 610-first travel guide rail; 620-second travel guide rail; 70-automatic tensioning wheel; 800-reducer; 810-travel support wheel; 820-fixed limit wheel; 801-driving gear; 802-fixed rack; 830-clutch mechanism; 831-cam handle; 832-connecting rod; 90-protective device; DETAILED DESCRIPTION

[0042] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0044] In the daily production process of the existing circular furnace smelting furnace in the smelting branch, it is inevitable that large pieces of material enter the furnace. The large pieces of material entering the furnace cannot be melted and discharged smoothly through the discharge port within a reaction cycle, and will block the melt discharge channel, affecting the normal production rhythm. At this time, the post operator needs to frequently use a 6m long steel drill to poke into the discharge port to smash or push away the large pieces of material to ensure the normal discharge of the melt. When the mouth is poked, due to the high pressure in the furnace, the high-temperature melt carries toxic fumes when the discharge port is poked open, splashing on the operator, which is prone to high-temperature burns and inhalation of toxic fumes. It is easy for the drill rod to be deformed by heat or excessively bonded, and the drill rod cannot be pulled out in time, which consumes a lot of physical and mental energy of the operator. Due to environmental factors such as high-temperature radiation, melt splashing, and toxic fumes on site, the post personnel need to consume huge physical strength and take certain safety risks to manually poke the mouth. The existing mud gun opening machine is suitable for drilling copper at the copper mouth, but is not suitable for the poke mouth condition during the discharge process.

[0045] Based on this, the present invention hopes to provide a solution that can solve the above-mentioned technical problems, and its details will be described in the subsequent embodiments.

[0046] See also Figure 1 to Figure 2 As shown in the figure, the stroke amplification mechanism 10 provided by the present invention includes: a frame 100, a first guide rail 110 arranged on the upper part of the frame 100, and a second guide rail 190 arranged on the lower part of the frame 100. The first guide rail 110 can be two slide bars, and the two ends of the slide bars are respectively fixed on the frame 100. A walking trolley 120 is slidably arranged on the first guide rail 110. It is easy to understand that the walking trolley 120 can make a reciprocating motion along the first guide rail 110. A first roller 130 and a second roller 140 are arranged on the walking trolley 120. It should be noted that the frame is made of square steel and is in a three-dimensional shape (that is, the upper part is a square frame, the lower part is a square frame, and the two square frames are connected by square steel to form a whole), the first guide rail 110 is arranged on the upper square frame, and the second guide rail 190 is arranged on the lower square frame.

[0047] The travel amplification mechanism further includes a telescopic assembly 170, a telescopic end 171 of the telescopic assembly 170 is fixed on the first guide rail 110, and the other end of the telescopic assembly 170 is fixed on the frame 100. For example, the telescopic assembly 170 can be a telescopic cylinder. The telescopic cylinder drives the walking trolley to move.

[0048] A redirecting gear 180 is also provided on the frame 100 near the fixing point of the telescopic cylinder and the frame, and a first fixed pulley 200 is provided on the second guide track 190. A first chain 210 is wound between the first roller 130, the redirecting gear 180 and the first fixed pulley 200, one end of the first chain 200 is fixed to the upper part of the frame 100, and the other end is fixed to the stab-mouth trolley 220. Both ends of the stab-mouth trolley 220 are slidably arranged in the second guide track 190. It is easy to understand that rollers for sliding are provided at both ends of the stab-mouth trolley, and the second guide tracks are two parallel tracks arranged on the lower frame of the frame.

[0049] A first fixed pulley 200 is arranged at one end of the lower frame of the frame 100, a second fixed pulley 230 is arranged at the other end at a position opposite to the first fixed pulley 200, a third fixed pulley 240 is arranged on the upper frame of the frame 100, a second chain 250 is wound between the second roller 140, the third fixed pulley 240 and the second fixed pulley 230, one end of the second chain 250 is fixed to the piercing trolley 220, and the other end is fixed to the upper frame of the frame 100 after passing through the second fixed pulley 230, the third fixed pulley 240 and the second roller 140 in sequence. Among them, the first roller 130, the second roller 140, the redirecting gear 180, the first chain 210, the second chain 250, the second fixed pulley 230 and the third fixed pulley 240 constitute a transmission mechanism. It is easy to understand that there are two transmission mechanisms with the same structure, which are respectively arranged on both sides of the telescopic assembly. When the telescopic assembly is a telescopic cylinder, the telescopic cylinder is in an extended state, the stab-mouth trolley is at one end close to the first fixed pulley, and the walking trolley is at one end of the third fixed pulley. When the telescopic cylinder moves, the walking trolley and the stab-mouth trolley move towards each other.

[0050] It is easy to understand that the travel amplification mechanism 10 includes four movable pulleys installed on the walking trolley 120, one end of the four chains is fixed on the frame, and the other end is fixed to the front and rear ends of the stab-mouth trolley 220. As the telescopic assembly 170 moves forward and backward, the four chains are pushed and pulled respectively, and the stab-mouth trolley is driven to move forward and backward through the fixed redirecting sprocket. (The four sprockets on the head of the telescopic cylinder are equivalent to the movable pulleys in the pulley group, two by two in a group, respectively responsible for pulling the two rear chains to drive the stab-mouth trolley to move backward when the cylinder is extended, and pulling the two front chains to drive the stab-mouth trolley to move forward when the cylinder is retracted. All the fixed sprockets are used as redirecting wheels of the pulley group).

[0051] Based on the same inventive concept, the present invention also provides a stabbing device, combined with Figures 2 to 4The piercing device includes: a stroke amplification mechanism 10, a drill rod 30, a support seat 40 and a drill rod clamping mechanism, wherein the length and diameter of the drill rod 30 can be set according to actual needs. The specific structure of the stroke amplification mechanism 10 is as described above and will not be repeated here. The support seat 40 is welded from square steel and is used to support the stroke amplification mechanism 10. The stroke amplification mechanism can be connected to the support seat 40 by welding. The steel drill clamping mechanism includes a clamping device 500 arranged on the piercing trolley 220 and a fulcrum 510 arranged at the lower part of the frame 10 and eccentric with the second fixed pulley.

[0052] In one implementation of this embodiment, Figure 7 As shown, the clamping device 500 includes a body 501, wherein a receiving cavity 503 for receiving a clamping assembly 502 is provided inside the body 501, and a hook-shaped portion 504 is provided at the end of the body 501. The clamping assembly 502 includes a clamping member 5020 and an elastic member 5021, wherein the elastic member 5021 may be a spring, and the spring is sleeved on the outside of the clamping member 5020, and a pressing handle 5022 is provided at the end of the clamping member. When clamping is required, the drill rod is placed in the hook-shaped portion 504, and the pressing handle 5022 is pressed to compress the spring, and the elastic force of the spring acts on the clamping member 5020, so that the clamping member 5020 is pressed against the drill rod to fix the drill rod.

[0053] In one implementation of this embodiment, Figure 8 As shown, the fulcrum can be set to be retractable (such as foldable), that is, a retractable cylinder 520 can be set to be used for retracting and extending the fulcrum 510, so as to hide the fulcrum.

[0054] In one implementation of the present embodiment, the stabbing device further includes a travel rail 60, an automatic tensioning wheel 70 and a motion mechanism, and the stroke amplification mechanism 10 is hung on the travel rail 60. It is easy to understand that a plurality of discharge ports are usually arranged at the lower part of the smelting furnace (the discharge ports are arranged in concentric circles along the furnace wall at the lower part of the smelting furnace). By setting the travel rail 60, the stabbing device can be conveniently moved between the various discharge ports, and the track 60 is an arc track. The arc track is set to two, namely the first travel rail 610 and the second travel rail 620. The drill rod 30 can be centered by the automatic tensioning wheel 70 (the purpose of the automatic tensioning wheel is to keep the drill rod axis always pointing to the center point of the circular furnace cylinder during the operation of the frame on the I-beam guide rail, that is, to ensure that the drill rod axis is concentric with the discharge port flow channel).

[0055] In this implementation, if Figure 3As shown, the motion mechanism includes a reducer 800. As an example, the reducer 800 can be a three-in-one reducer. The walking support wheel 810 connected to the reducer 800 is in contact with the inner surface of the walking guide rail 60, perpendicular to the walking rail, and supports the weight of the entire frame to walk. The fixed limiting wheel 820 used in conjunction with the walking support wheel 810 is arranged on the side of the lower part of the second walking rail 620 to fix the walking support wheel 810. A driving gear 801 is arranged on the main shaft of the reducer 800, and a fixed rack 802 used in conjunction with the driving gear 801 is arranged on the side of the upper part of the second walking rail 620. The frame 100 is driven to move by the engagement of the driving gear and the fixed rack.

[0056] In one implementation of this embodiment, Figure 6 As shown, the motion mechanism further includes a clutch mechanism 830, which is easily understood to be disposed on the reducer 800. The clutch mechanism 830 includes a cam handle 831 and a connecting rod 832, through which the driving gear 801 and the fixed rack 802 can be quickly disengaged, and when all power and air sources are cut off, easy manual pushing can be achieved.

[0057] In one implementation of this embodiment, one end (front end) of the frame 100 facing the smelting furnace is an inclined surface. Designing the front end of the frame 100 as an inclined surface can prevent the second fixed pulley 23 and the fulcrum from being burned by the melt.

[0058] In one implementation of this embodiment, Figure 5 As shown, a protective device 90 is wrapped around the surface (front end, bottom, side) of the frame 100 for heat insulation protection. The protective device 90 is a three-stage quick-release type. Since the protective device 90 is provided, the protective device 90 cooperates with the melt flow channel provided around the smelting furnace to form a flue gas diversion channel. When the smelting furnace is operated, the flue gas in the smelting furnace can flow out along the diversion channel, which can effectively reduce the low-altitude pollution problem caused by the emission position.

[0059] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A stroke amplification mechanism, characterized in that: include: frame; A guide track, wherein the guide track includes a first guide track and a second guide track; The first guide rail is arranged on the upper part of the frame; The second guide rail is arranged at the lower part of the frame; A traveling trolley, wherein the traveling trolley is slidably arranged on the first guide rail; A telescopic assembly, used for pushing and pulling the traveling trolley, wherein the telescopic end of the telescopic assembly is fixed on the traveling trolley; and Transmission mechanism, wherein two transmission mechanisms are provided, the two transmission mechanisms have the same structure, and are respectively located on both sides of the telescopic assembly; The transmission mechanism includes a first roller and a second roller arranged on the walking trolley; a redirecting gear arranged on the upper part of the frame and cooperating with the first roller, and a first fixed pulley arranged on the lower part of the frame and cooperating with the redirecting gear; a poking trolley slidably arranged on the second guide rail; a second fixed pulley arranged on the lower part of the frame, and a third fixed pulley arranged on the upper part of the frame and cooperating with the second roller; and a chain, the chain including a first chain and a second chain, one end of the first chain passes through the first roller, the redirecting gear and the first fixed pulley in sequence, and is fixed to the poking trolley, and the other end is arranged on the upper part of the frame away from the third fixed pulley; one end of the second chain is fixed to the poking trolley, and the other end passes through the second fixed pulley, the third fixed pulley and the second roller in sequence, and is arranged on the upper part of the frame close to the third fixed pulley.

2. The stroke amplification mechanism according to claim 1, characterized in that: The telescopic component is a telescopic cylinder.

3. A dredging device for clearing the discharge port of a smelting furnace, characterized in that: Based on the stroke amplification mechanism as described in any one of claims 1-2; the stabbing device comprises: Drill rod; a support seat, on which the lower portion of the frame of the stroke amplification mechanism is arranged; and The drill rod clamping mechanism is used to clamp the drill rod. The drill rod clamping mechanism includes a clamping device arranged on the poking trolley and a fulcrum arranged at the lower part of the frame and eccentrically with the second fixed pulley.

4. The piercing device according to claim 3, characterized in that: Also includes: A walking guide rail, wherein the walking guide rail comprises a first walking guide rail and a second walking guide rail; the first walking guide rail and the second walking guide rail both comprise a C-shaped inner surface; An automatic tensioning wheel, the fixed end of which is connected to the upper part of the frame, and the wheel contacts the bottom of the C-shaped inner surface of the first walking guide rail; The motion mechanism includes a reducer, a driving gear connected to the reducer, and a fixed rack matched with the driving gear; wherein the driving gear is arranged on the output shaft of the reducer and contacts with the bottom of the C-shaped inner surface of the second walking guide rail; the fixed rack is arranged on the top of the C-shaped inner surface of the second walking guide rail, and the driving gear is engaged with the fixed rack to drive the frame to move.

5. The stab device according to claim 4, characterized in that: The motion mechanism further comprises a clutch mechanism, which is connected to the reducer and is used to disengage the gear from the rack.

6. The piercing device according to claim 3, characterized in that: The clamping device comprises a body, one end of which is provided with a hook-shaped portion, an accommodating cavity is provided inside the body, a clamping assembly for cooperating with the hook-shaped portion to clamp the drill rod is provided in the accommodating cavity, and a pressing handle is provided at one end of the clamping assembly.

7. The piercing device according to claim 6, characterized in that: The clamping assembly includes a clamping member and an elastic member sleeved on the clamping member. The elastic member is compressed by pressing the handle to provide the clamping assembly with the force required for clamping.

8. The piercing device according to claim 3, characterized in that: The end surface of the frame facing the smelting furnace is an inclined surface.

9. The piercing device according to claim 3, characterized in that: It also includes a retractable cylinder, which is connected to the fulcrum and is used for retracting and extending the fulcrum.

10. The piercing device according to any one of claims 3 to 9, characterized in that: A protective device is also included, which is wrapped around the outer surface of the frame.

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