Crane triboelectric plate system based on gravity self-adaptive adjustment and preparation and installation method of crane triboelectric plate system

Abstract

The invention discloses a crane triboelectric plate system based on gravity self-adaptive adjustment and a preparation and installation method thereof.The crane triboelectric plate system comprises a wear-way porcelain bottle and further comprises a bearing frame used for fixing the wear-way porcelain bottle, the bearing frame is detachably connected with a dynamic bottom plate, and the dynamic bottom plate is in lap joint with a guide rail slide wire; the dynamic bottom plate is connected to the bearing frame in a hinged mode, the dynamic bottom plate can rotate along the bearing frame, the bearing frame and the dynamic bottom plate form a plurality of crane triboelectric plates, the crane triboelectric plates are fixed to a crane beam wall, the bearing frame is an II-shaped bearing frame, and the dynamic bottom plate can rotate along the bearing frame. The bearing frame adopts 14 # channel steel to be welded into a frame with a II-shaped section, the height of a vertical arm is 300mm, the horizontal span is 200mm, a top prefabricated hole for fixing the dynamic bottom plate is formed in the II-shaped bearing frame, and a transverse pin shaft is detachably connected in the top prefabricated hole.

Description

Technical Field

[0001] This invention belongs to the field of power supply technology for lifting equipment in the metallurgical industry, specifically relating to a crane grinding plate system based on gravity adaptive adjustment and its preparation and installation method. Background Technology

[0002] In existing technologies, large cranes in steelmaking plants generally use grinding wheel power supply systems. Traditional grinding wheel power supply systems have three major drawbacks:

[0003] (1) Poor contact: The original structure uses spring-pressed contact, which can easily lead to uneven contact pressure when the sliding line fluctuates, resulting in arc burn-out;

[0004] (2) Structural instability: The longitudinal pin fixing method is prone to overturning due to inertial forces during crane operation;

[0005] (3) Short lifespan: Dust environment accelerates wear and tear.

[0006] Based on the aforementioned technical defects, the existing improvement scheme adopts a reinforced spring structure, which increases the contact pressure but also causes the friction to increase by 30%, thus aggravating wear.

[0007] In view of the above factors, a crane grinding plate system based on gravity adaptive adjustment and its installation method are provided to solve the three major problems of non-adjustable contact pressure, structural instability and poor environmental adaptability, and achieve stable contact with zero external force adjustment. Summary of the Invention

[0008] The purpose of this invention is to provide a crane grinding plate system based on gravity adaptive adjustment and its preparation and installation method, so as to solve the problems mentioned in the background art.

[0009] The objective of this invention is achieved through the following technical solution: a crane grinding plate system based on gravity adaptive adjustment, including a grinding track ceramic bottle and a support frame for fixing the grinding track ceramic bottle, wherein a dynamic base plate is detachably connected to the support frame and the dynamic base plate overlaps the guide rail slide line;

[0010] The dynamic base plate is hinged to the support frame, and the dynamic base plate can rotate along the support frame;

[0011] The support frame and the dynamic base plate form a crane grinding plate. Several crane grinding plates are provided and fixed to the crane beam wall.

[0012] Furthermore, the support frame is a II-shaped support frame, which is made of 14# channel steel welded into a frame with a "II" shaped cross section, with a vertical arm height of 300mm and a horizontal span of 200mm.

[0013] Furthermore, the II-shaped support frame is provided with a top prefabricated hole for fixing the dynamic base plate. A transverse pin is detachably connected in the top prefabricated hole. The transverse pin passes through the top prefabricated hole of the II-shaped support frame and is fixed at both ends by snap rings.

[0014] Furthermore, the retaining ring grooves at both ends of the transverse pin are 2mm deep and 6mm wide, and retaining rings are installed in the retaining ring grooves.

[0015] Furthermore, the dynamic base plate and the transverse pin are connected by a symmetrically arranged sleeve structure through welding, which is inserted into the transverse pin.

[0016] Furthermore, the bottom of the support frame is welded to form a closed base plate, and the surface of the base plate is sprayed with a tungsten carbide coating with a thickness of 0.2 mm and a hardness of ≥80 HRC.

[0017] Furthermore, the dynamic base plate is made of Q235 steel plate with a thickness of 10mm, and the hinge point on the support frame is offset from the dynamic base plate and 40mm from the front end.

[0018] Furthermore, the dynamic base plate automatically rotates around the transverse pin, with an angle adjustment range of 40 to 50 degrees.

[0019] A method for fabricating a crane grinding plate system based on gravity adaptive adjustment includes the following steps;

[0020] Step 1: The support frame is a structural fabrication, made of 14# channel steel welded into a frame with an "II" shaped cross section, with a vertical arm height of 300mm, a horizontal span of 200mm, and the transverse pins made of 40Cr alloy steel.

[0021] Cutting the channel steel: Laser cutting is used for blanking, with a vertical arm length of 300±0.5mm. The load-bearing frame is formed by continuous welding with CO2 shielded welding.

[0022] Step 2: Mechanical Assembly

[0023] The transverse pin passes through the pre-drilled hole at the top of the II-shaped frame. The pre-drilled hole at the top has a tolerance fit of H7 / g6. The two ends of the transverse pin are fixed by snap rings. The snap ring groove is 2mm deep and 6mm wide.

[0024] The dynamic base plate and the support frame are connected by hinges, and the initial angle of the dynamic base plate is adjusted to 45°±1°.

[0025] Step 3: On-site installation

[0026] Reference surface determination: The crane beam provides an installation reference surface for the grinding plate system. The levelness is calibrated by a laser positioning instrument, with an error ≤0.5mm / m;

[0027] Gap preset: An initial gap of 50±2mm is preset between the grinding plate system and the slide rail. This gap value has been verified by finite element analysis as the optimal floating space.

[0028] Adaptive working cycle: Slide line undulation --> T-triggered dynamic base plate floating --> Maintain constant brush contact pressure. Cyclic working details: Triggering mechanism: When the crane is running, the slide line undulates, with a common amplitude of 5-30mm. Dynamic base plate instantaneous response: Response time < 0.1 seconds. Floating adjustment: The dynamic base plate rotates around the hinge point, with an adaptive angle range of 30°-60°. Gravity component recombination: Vertical pressure fluctuation < ±3%, measured value 82.5-84.7N. Pressure maintenance: The brush contact pressure is stable at 83.3±1N, and the contact resistance remains at 32±2mΩ, far below the safety threshold of 100mΩ.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] This invention solves the problems of unadjustable contact pressure, structural instability, and poor environmental adaptability in existing technologies, achieving stable contact with zero external force adjustment. The invention utilizes a dual-force synergy: a vertical force provides a constant contact pressure of 83.3N (calculated value: 117.6 × √2 / 2), and a horizontal force generates an 83.3N lateral constraint force, effectively suppressing equipment sway during operation. The gravitational force is real-time reorganized, maintaining contact pressure fluctuations within ±5%. This mechanism breaks through the traditional spring-pressurization mode, achieving three major advantages: constant pressure (eliminating pressure attenuation caused by spring fatigue); self-stabilization (the horizontal force constructs lateral constraint); and zero energy consumption (operating entirely based on gravitational potential energy). The measured contact pressure fluctuation range is 82.6-84.1N, conforming to the theoretical calculation value within the ±2% error range. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the main view of the present invention;

[0032] Figure 2 This is a top view of the present invention;

[0033] Figure 3 This is a schematic diagram of the dynamic base plate of the present invention;

[0034] Figure 4 This is a schematic diagram of the transverse pin of the present invention;

[0035] Figure 5 This is a planar schematic diagram of the snap ring of the present invention. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Specific Implementation Example 1:

[0040] like Figure 1-5 As shown, a crane grinding plate system based on gravity adaptive adjustment includes a grinding track ceramic bottle 1 and a support frame 2 for fixing the grinding track ceramic bottle 1. A dynamic base plate 3 is detachably connected to the support frame 2, and the dynamic base plate 3 overlaps on the guide rail slide line 4.

[0041] The dynamic base plate 3 is hinged to the support frame 2, and the dynamic base plate 3 can rotate along the support frame 2;

[0042] The support frame 2 and the dynamic base plate 3 form a crane grinding plate. Several crane grinding plates are provided and fixed to the crane beam wall.

[0043] The support frame 2 is a II-shaped support frame. The support frame 2 is made of 14# channel steel welded into a frame with a "II" shaped cross section, with a vertical arm height of 300mm and a horizontal span of 200mm.

[0044] The II-shaped support frame has a top prefabricated hole 5 for fixing the dynamic base plate. A transverse pin 6 is detachably connected inside the top prefabricated hole 5. The transverse pin 6 passes through the top prefabricated hole 5 of the II-shaped support frame and is fixed at both ends by snap rings.

[0045] The retaining ring grooves 7 at both ends of the transverse pin 6 are 2mm deep and 6mm wide, and retaining rings 8 are installed in the retaining ring grooves 7.

[0046] The dynamic base plate 3 and the transverse pin 6 are connected by a symmetrically arranged sleeve structure 9 through welding, which is inserted into the transverse pin 6.

[0047] The aforementioned configuration of the transverse pin and snap ring facilitates quick connection and fixation during use, as well as easy disassembly and replacement. Through the hinged connection between the dynamic base plate and the transverse pin, when the slide line exhibits ≤15mm undulation, the dynamic base plate automatically rotates around the hinge point, with an angle adjustment range of 40°-50°.

[0048] The bottom of the support frame is welded to form a closed base plate. The surface of the base plate is coated with a tungsten carbide coating with a thickness of 0.2 mm and a hardness of ≥80 HRC. The surface of the dynamic base plate is also coated with a tungsten carbide coating with a thickness of 0.2 mm and a hardness of ≥80 HRC.

[0049] The dynamic base plate is made of Q235 steel plate with a thickness of 10mm. The hinge point on the support frame is offset from the dynamic base plate and is 40mm from the front end.

[0050] The dynamic base plate automatically rotates around the transverse pin, with an angle adjustment range of 40 to 50 degrees.

[0051] The above structure forms a gravity-adaptive mechanism, decomposing the self-weight into a vertical force (G·cos45° perpendicular to the contact surface) and a horizontal force (G·sin45° parallel to the contact surface). Note: When the grinding plate mass is 12kg, G=117.6N (g=9.8m / s²). The dual forces work synergistically: The vertical force provides a constant contact pressure of 83.3N (calculated value: 117.6×√2 / 2). The horizontal force generates a lateral constraint force of 83.3N, effectively suppressing the swaying of the equipment during operation. Specific Implementation Example 2:

[0053] A method for fabricating and installing a crane grinding plate system based on gravity adaptive adjustment, characterized by the following steps;

[0054] Step 1: The support frame is a structural fabrication, made of 14# channel steel welded into a frame with an "II" shaped cross section, with a vertical arm height of 300mm, a horizontal span of 200mm, and the transverse pins made of 40Cr alloy steel.

[0055] Cutting the channel steel: Laser cutting is used for blanking, with a vertical arm length of 300±0.5mm. The load-bearing frame is formed by continuous welding with CO2 shielded welding.

[0056] Step 2: Mechanical Assembly

[0057] The transverse pin passes through the pre-drilled hole at the top of the II-shaped frame. The pre-drilled hole at the top has a tolerance fit of H7 / g6. The two ends of the transverse pin are fixed by snap rings. The snap ring groove is 2mm deep and 6mm wide.

[0058] The dynamic base plate and the support frame are connected by hinges, and the initial angle of the dynamic base plate is adjusted to 45°±1°.

[0059] Step 3: On-site installation

[0060] Reference surface determination: The crane beam provides an installation reference surface for the grinding plate system. The levelness is calibrated by a laser positioning instrument, with an error ≤0.5mm / m;

[0061] Gap preset: An initial gap of 50±2mm is preset between the grinding plate system and the slide rail. This gap value has been verified by finite element analysis as the optimal floating space.

[0062] Adaptive working cycle: Slide line undulation --> T-triggered dynamic base plate floating --> Maintain constant brush contact pressure. Cyclic working details: Triggering mechanism: When the crane is running, the slide line undulates, with a common amplitude of 5-30mm. Dynamic base plate instantaneous response: Response time < 0.1 seconds. Floating adjustment: The dynamic base plate rotates around the hinge point, with an adaptive angle range of 30°-60°. Gravity component recombination: Vertical pressure fluctuation < ±3%, measured value 82.5-84.7N. Pressure maintenance: The brush contact pressure is stable at 83.3±1N, and the contact resistance remains at 32±2mΩ, far below the safety threshold of 100mΩ.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0064] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A crane grinding plate system based on gravity adaptive adjustment, comprising a grinding track ceramic insulator, characterized in that: It also includes a support frame for fixing the ceramic bottle in the grinding track, on which a dynamic base plate is detachably connected, and the dynamic base plate rests on the guide rail slide line; The dynamic base plate is hinged to the support frame, and the dynamic base plate can rotate along the support frame; The support frame and the dynamic base plate form a crane grinding plate. Several crane grinding plates are provided and fixed to the crane beam wall.

2. The crane grinding plate system based on gravity adaptive adjustment according to claim 1, characterized in that: The support frame is a II-shaped support frame, which is made of 14# channel steel welded into a frame with a "II" shaped cross section, with a vertical arm height of 300mm and a horizontal span of 200mm.

3. The crane grinding plate system based on gravity adaptive adjustment according to claim 2, characterized in that: The II-shaped support frame has a pre-fabricated top hole for fixing the dynamic base plate. A transverse pin is detachably connected inside the pre-fabricated top hole. The transverse pin passes through the pre-fabricated top hole of the II-shaped support frame and is fixed at both ends by snap rings.

4. The crane grinding plate system based on gravity adaptive adjustment according to claim 3, characterized in that: The retaining ring grooves at both ends of the transverse pin are 2mm deep and 6mm wide, and retaining rings are installed in the retaining ring grooves.

5. The crane grinding plate system based on gravity adaptive adjustment according to claim 4, characterized in that: The dynamic base plate and the transverse pin are connected by a symmetrically arranged sleeve structure through welding, which is inserted into the transverse pin.

6. The crane grinding plate system based on gravity adaptive adjustment according to claim 5, characterized in that: The bottom of the support frame is welded to form a closed base plate, and the surface of the base plate is sprayed with a tungsten carbide coating with a thickness of 0.2 mm and a hardness of ≥80 HRC.

7. The crane grinding plate system based on gravity adaptive adjustment according to claim 6, characterized in that: The dynamic base plate is made of Q235 steel plate with a thickness of 10mm. The hinge point on the support frame is offset from the dynamic base plate and is 40mm from the front end.

8. The crane grinding plate system based on gravity adaptive adjustment according to claim 7, characterized in that: The dynamic base plate automatically rotates around the transverse pin, with an angle adjustment range of 40 to 50 degrees.

9. A method for fabricating and installing a crane grinding plate system based on gravity adaptive adjustment according to claim 8, characterized in that: Includes the following steps; Step 1: The support frame is a structural fabrication, made of 14# channel steel welded into a frame with an "II" shaped cross section, with a vertical arm height of 300mm, a horizontal span of 200mm, and the transverse pins made of 40Cr alloy steel. Cutting the channel steel: Laser cutting is used for blanking, with a vertical arm length of 300±0.5mm. The load-bearing frame is formed by continuous welding with CO2 shielded welding. Step 2: Mechanical Assembly The transverse pin passes through the pre-drilled hole at the top of the II-shaped frame. The pre-drilled hole at the top has a tolerance fit of H7 / g6. The two ends of the transverse pin are fixed by snap rings. The snap ring groove is 2mm deep and 6mm wide. The dynamic base plate and the support frame are connected by hinges, and the initial angle of the dynamic base plate is adjusted to 45°±1°. Step 3: On-site installation Reference surface determination: The crane beam provides an installation reference surface for the grinding plate system. The levelness is calibrated by a laser positioning instrument, with an error ≤0.5mm / m; Gap preset: An initial gap of 50±2mm is preset between the grinding plate system and the slide rail. This gap value has been verified by finite element analysis as the optimal floating space. Adaptive working cycle: Slide line undulation --> T-triggered dynamic base plate floating --> Maintain constant brush contact pressure. Cyclic working details: Triggering mechanism: When the crane is running, the slide line undulates, with a common amplitude of 5-30mm. Dynamic base plate instantaneous response: Response time < 0.1 seconds. Floating adjustment: The dynamic base plate rotates around the hinge point, with an adaptive angle range of 30°-60°. Gravity component recombination: Vertical pressure fluctuation < ±3%, measured value 82.5-84.7N. Pressure maintenance: The brush contact pressure is stable at 83.3±1N, and the contact resistance remains at 32±2mΩ, far below the safety threshold of 100mΩ.

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