Magnesite-carbon brick handling clamp

By using the linkage design of the adjusting ring and drive gear and the negative pressure adsorption technology, the problems of unstable clamping and safety hazards in magnesia-carbon brick handling equipment have been solved, achieving precise clamping and stable handling of magnesia-carbon bricks, and improving the portability and operational flexibility of the equipment.

CN224492852UActive Publication Date: 2026-07-14ZHENGZHOU KEYUAN REFRACTORY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU KEYUAN REFRACTORY CO LTD
Filing Date
2025-09-16
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing magnesia-carbon brick handling equipment is complex in structure, bulky in size, inconvenient to operate, difficult to adapt to confined spaces or complex working conditions, has unstable clamping, poses safety hazards, and is prone to damaging the bricks.

Method used

The device employs a linkage design between the adjusting ring and the drive gear, combined with the sliding cooperation of the slide groove and the slide bar. By controlling the motor to drive the clamping bar to retract along the X-shaped track groove, and combined with the ring array drive block to push the transmission wheel, a micro vacuum machine is used to create negative pressure adsorption, ensuring stable and reliable clamping.

Benefits of technology

It achieves precise clamping and stable handling of magnesia-carbon bricks, improves equipment portability and operational flexibility, enhances the safety and efficiency of the handling process, and is suitable for complex working conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of magnesium-carbon brick handling clamps, belong to material handling equipment field, including driving arm and connecting seat, the driving arm is hydraulic telescopic cylinder, the telescopic end of driving arm is fixedly connected with connecting block, and connecting block other end is fixedly connected in the one side of connecting seat, the one end fixedly connected with control shaft of driving arm away from connecting block, the surface of connecting seat is equipped with trajectory groove, it is through the linkage design of adjusting ring and driving gear, in combination with the sliding fit of sliding slot and slide bar, make clamping strip along X trajectory groove under the stable folding of control motor drive, realize the accurate clamping of magnesium-carbon brick corner, annular array distribution drive block promotes transmission wheel, and then through connecting rod drive V-shaped clamping strip synchronous to center tightening, reset spring provides buffering and reset function, ensure that clamping process is stable and reliable, overall structure is compact and light, improve the portability and operating flexibility of equipment, avoid that magnesium-carbon brick appears damage due to clamping strength too big.
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Description

Technical Field

[0001] This utility model relates to the field of material handling equipment, and more specifically, to a magnesium carbon brick handling clamp. Background Technology

[0002] Magnesia-carbon bricks are a type of refractory material widely used in high-temperature industrial fields. They have excellent high-temperature resistance and erosion resistance and are often used as linings for key equipment in industries such as steel and metallurgy. During the production, transportation and installation of magnesia-carbon bricks, due to the large volume, heavy weight and relatively regular shape of the material, handling operations usually rely on manual labor or simple mechanical tools, which not only results in high labor intensity but also low work efficiency and high safety risks.

[0003] Magnesia-carbon brick handling equipment generally suffers from problems such as complex structure, large size, and inconvenient operation, making it difficult to adapt to the needs of operation in confined spaces or complex working conditions. Traditional clamping methods mostly rely on mechanical grippers, which are difficult to control in terms of clamping force, easily causing damage to the brick surface or unstable clamping, leading to slippage or falling off during handling, posing serious safety hazards. Secondly, most equipment lacks effective fixation of the top of the brick, and relying solely on edge clamping is insufficient to ensure overall stability. Especially when subjected to vibration or external forces during handling, the brick is prone to shifting or overturning, seriously affecting operational safety and efficiency. Therefore, we have proposed a magnesia-carbon brick handling fixture to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a magnesia-carbon brick handling clamp. Through the linkage design of the adjusting ring and the drive gear, combined with the sliding cooperation of the sliding groove and the sliding bar, the clamping bar is smoothly retracted along the X-shaped track groove under the drive of the control motor, achieving precise clamping of the edges and corners of the magnesia-carbon brick. Secondly, a ring-array of drive blocks pushes the transmission wheel, which in turn drives the V-shaped clamping bar to tighten synchronously towards the center via the connecting rod. A return spring provides buffering and reset functions, ensuring a stable and reliable clamping process. The overall structure is compact and lightweight, significantly improving the portability and operational flexibility of the equipment, and preventing damage to the magnesia-carbon brick due to excessive clamping force.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A magnesia-carbon brick handling clamp includes a drive arm and a connecting seat. The drive arm is a hydraulic telescopic cylinder. A connecting block is fixedly connected to the telescopic end of the drive arm, and the other end of the connecting block is fixedly connected to one side of the connecting seat. A control shaft is fixedly connected to the end of the drive arm away from the connecting block. A track groove is formed on the surface of the connecting seat. The track groove is X-shaped and circular in the middle. An adsorption mechanism is fixedly connected to the middle position of the track groove. A clamping mechanism is movably connected to the surface of the connecting seat.

[0009] Furthermore, the clamping mechanism includes an adjusting ring, a driving block, a driving gear, a control motor, and a support frame. The top outer side of the adjusting ring is provided with transmission teeth, and the driving gear meshes with the adjusting ring through the transmission teeth. The driving gear is fixedly connected to the output end of the control motor. The middle position of the support frame is fixedly connected to the bottom of the control motor, and the two sides of the bottom of the support frame are respectively fixedly connected to one side of the connecting seat. There are four driving blocks arranged in a circular array and fixedly connected to the inner side of the adjusting ring. The inner side of each driving block is arc-shaped.

[0010] Furthermore, a groove is provided on the outer side of the adjusting ring. The groove is annular and has a T-shaped cross-section. A set of left-right symmetrical slide bars are fixedly connected to the top of the connecting seat. The slide bars are adapted to the groove, and the opposite sides of the slide bars are slidably connected to the inside of the groove.

[0011] Furthermore, the clamping mechanism also includes transmission wheels, connecting rods, clamping bars, and return springs. Four transmission wheels are provided, and one end of each connecting rod is rotatably connected to the bottom axis of the transmission wheel. The clamping bars are fixedly connected to the other end of each connecting rod, and one end of each return spring is fixedly connected to the outer top of the clamping bar.

[0012] Furthermore, the transmission wheel and the clamping bar are located at the top and bottom of the connecting seat, respectively, and the transmission wheel is close to the drive block. The clamping bar has a V-shaped cross-section. The connecting rods are slidably connected to the inside of the track groove. The end of the return spring away from the clamping bar is fixedly connected to the middle position of the bottom four sides of the connecting seat.

[0013] Furthermore, the adsorption mechanism includes a fixed frame, a suction cup, a connecting tube, and a micro vacuum pump. The fixed frame is fixedly connected to the outside of one end of the connecting tube, and the suction cup is fixedly connected to the end of the connecting tube near the fixed frame. The output end of the micro vacuum pump is fixedly connected to the end of the connecting tube away from the suction cup.

[0014] Furthermore, the suction cup, connecting tube, and miniature vacuum pump are internally interconnected. The suction cup is located in the middle of the track groove, and the fixing bracket is fixedly connected to the top middle of the connecting seat. The miniature vacuum pump is fixedly connected to the side of the connecting seat away from the connecting block.

[0015] In use, the control shaft is installed at the output end of the telescopic rotary drive device. The control drive arm extends the connecting seat via the connecting block, moving the connecting seat directly above the magnesia-carbon brick to be transported. Then, the connecting seat moves downwards, positioning the circumferentially distributed clamping bars on the outer edges of the magnesia-carbon brick. Simultaneously, the suction cup adheres to the top surface of the brick. The micro vacuum machine is activated, creating a vacuum through the connecting pipe to firmly adhere the suction cup to the top of the magnesia-carbon brick. Next, the control motor is activated, engaging the drive gear and transmission gear to rotate the adjusting ring. The inner groove of the adjusting ring slides along the sliding bar, causing the drive block to rotate with the adjusting ring and push the transmission wheel towards the center of the connecting seat. The connecting rod, driven by the transmission wheel, slides along the track groove, pushing each clamping bar to synchronously retract towards the center, gradually clamping the edges of the magnesia-carbon brick. During this process, the return spring extends under tension. Once firmly clamped, the telescopic rotary drive device transports the entire magnesia-carbon brick to the predetermined position.

[0016] 3. Beneficial Effects

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] (1) In this scheme, the linkage design of the adjusting ring and the drive gear, combined with the sliding cooperation of the slide groove and the slide bar, enables the clamping bar to be smoothly retracted along the X-shaped track groove under the drive of the control motor, so as to achieve precise clamping of the corner of the magnesia-carbon brick. Secondly, the drive blocks distributed in a ring array are used to drive the transmission wheel, and then the V-shaped clamping bar is driven to tighten towards the center synchronously through the connecting rod. The reset spring provides buffering and reset functions to ensure that the clamping process is stable and reliable. The overall structure is compact and lightweight, which greatly improves the portability and operational flexibility of the equipment and avoids damage to the magnesia-carbon brick caused by excessive clamping force.

[0019] (2) This solution uses a micro vacuum machine, connecting pipe and suction cup internal connection design to form negative pressure adsorption on the top surface of magnesium carbon brick, which further enhances the stability and anti-slip properties during the handling process. The suction cup is fixed in the center of the track groove, and with the rigid connection of the fixed frame and the connecting seat, it ensures that the adsorption force is evenly distributed and not easy to fall off. In addition, it can also work together with the clamping mechanism to realize the integrated control of clamping and adsorption, which significantly improves the safety and efficiency of handling operations and is suitable for high-intensity operation requirements under complex working conditions. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the clamping mechanism of this utility model;

[0023] Figure 4 This is a partial cross-sectional view of the connection structure of the adjusting ring of this utility model;

[0024] Figure 5 This utility model Figure 4 Enlarged connection structure diagram at point A;

[0025] Figure 6 This utility model Figure 4 Enlarged schematic diagram of the connection structure at point B.

[0026] Explanation of the labels in the diagram:

[0027] 1. Drive arm; 2. Connecting seat; 3. Connecting block; 4. Control shaft; 5. Track groove; 6. Adsorption mechanism; 601. Fixing frame; 602. Suction cup; 603. Connecting pipe; 604. Miniature vacuum pump; 7. Clamping mechanism; 701. Adjusting ring; 702. Drive block; 703. Drive gear; 704. Control motor; 705. Support frame; 706. Transmission wheel; 707. Connecting rod; 708. Clamping bar; 709. Return spring; 8. Transmission gear; 9. Slide groove; 10. Slide bar. Detailed Implementation

[0028] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Example 1:

[0030] Please see Figures 1-6 A magnesium carbon brick handling clamp includes a drive arm 1 and a connecting seat 2. The drive arm 1 is a hydraulic telescopic cylinder. A connecting block 3 is fixedly connected to the telescopic end of the drive arm 1, and the other end of the connecting block 3 is fixedly connected to one side of the connecting seat 2. A control shaft 4 is fixedly connected to the end of the drive arm 1 away from the connecting block 3. A track groove 5 is opened on the surface of the connecting seat 2. The track groove 5 is X-shaped and the middle position is circular. An adsorption mechanism 6 is fixedly connected to the middle position of the track groove 5. A clamping mechanism 7 is movably connected to the surface of the connecting seat 2.

[0031] Example 2:

[0032] In view of the above embodiment 1, further description is provided, see reference. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The clamping mechanism 7 includes an adjusting ring 701, a drive block 702, a drive gear 703, a control motor 704, and a support frame 705. The top outer side of the adjusting ring 701 has a transmission tooth 8, and the drive gear 703 meshes with the adjusting ring 701 through the transmission tooth 8. The drive gear 703 is fixedly connected to the output end of the control motor 704. The middle position of the support frame 705 is fixedly connected to the bottom of the control motor 704, and the bottom two sides of the support frame 705 are respectively fixedly connected to one side of the connecting seat 2. Four drive blocks 702 are arranged in a circular array and fixedly connected to the inner side of the adjusting ring 701. The inner side of each drive block 702 is arc-shaped. The outer side of the adjusting ring 701 has a sliding groove 9, which is annular and has a T-shaped cross-section. A set of symmetrical sliding bars 10 is fixedly connected to the top of the connecting seat 2. The sliding bars 10 and the sliding groove 9... The sliding bars 10 are slidably connected to the inside of the sliding groove 9 on opposite sides. The clamping mechanism 7 also includes a transmission wheel 706, a connecting rod 707, a clamping bar 708, and a return spring 709. Four transmission wheels 706 are provided, and one end of the connecting rod 707 is rotatably connected to the bottom axis of the transmission wheel 706. The clamping bars 708 are fixedly connected to the other end of the connecting rod 707. One end of the return spring 709 is fixedly connected to the outer top of the clamping bar 708. The transmission wheel 706 and the clamping bar 708 are located at the top and bottom of the connecting seat 2, respectively. The transmission wheel 706 is close to the drive block 702. The clamping bar 708 has a V-shaped cross section. The connecting rod 707 is slidably connected to the inside of the track groove 5. The end of the return spring 709 away from the clamping bar 708 is fixedly connected to the middle position of the four sides of the bottom of the connecting seat 2.

[0033] The adjustment ring 701 has a transmission tooth 8 on its outer side that meshes with the drive gear 703. The control motor 704 drives the rotation, which in turn drives the drive blocks 702 distributed in a ring array to move synchronously. The inner side of the drive block 702 is arc-shaped, which can smoothly push the transmission wheel 706 to slide along the track groove 5. Then, through the connecting rod 707, the V-shaped clamping bar 708 is driven to retract towards the center, realizing precise clamping of the corners of the magnesia-carbon brick. At the same time, the adjustment ring 701 and the connecting seat 2 are connected by the sliding cooperation of the T-shaped slide groove 9 and the slide bar 10, which ensures the smoothness of the rotation process and the structural rigidity. The reset spring 709 provides a buffer force during the clamping process and assists the clamping bar 708 to reset when released, enhancing the reliability and safety of the clamping.

[0034] Example 3:

[0035] In view of the above embodiments 1 and 2, further description is provided, please refer to... Figure 1 , Figure 4 , Figure 5 and Figure 6The adsorption mechanism 6 includes a fixed frame 601, a suction cup 602, a connecting tube 603, and a micro vacuum machine 604. The fixed frame 601 is fixedly connected to the outside of one end of the connecting tube 603, and the suction cup 602 is fixedly connected to the end of the connecting tube 603 near the fixed frame 601. The output end of the micro vacuum machine 604 is fixedly connected to the end of the connecting tube 603 away from the suction cup 602. The suction cup 602, the connecting tube 603, and the micro vacuum machine 604 are internally interconnected. The suction cup 602 is located in the middle of the track groove 5, and the fixed frame 601 is fixedly connected to the top middle of the connecting seat 2. The micro vacuum machine 604 is fixedly connected to the side of the connecting seat 2 away from the connecting block 3.

[0036] The fixed bracket 601 is securely connected to the top center of the connecting seat 2 to ensure the stability of the overall structure. The suction cup 602 is located in the middle of the track groove 5 and is connected to the micro vacuum machine 604 through the connecting pipe 603 to form an internally connected vacuum system. When it is necessary to move the magnesia-carbon brick, the micro vacuum machine 604 is started to generate negative pressure, so that the suction cup 602 is firmly attached to the surface of the magnesia-carbon brick, thereby achieving stable and reliable gripping.

[0037] Based on the above embodiments 1, 2, and 3, the working principle is further described; in use, the control shaft 4 is installed at the output end of the telescopic rotary drive device, and the control drive arm 1 drives the connecting seat 2 to extend through the connecting block 3, so that the connecting seat 2 moves directly above the magnesia-carbon brick to be transported. Then, the control connect seat 2 moves downward, so that the circumferentially distributed clamping bars 708 are positioned on the outer edge of the magnesia-carbon brick, and at the same time, the suction cup 602 is in contact with the top surface of the brick. The micro vacuum machine 604 is started, and the suction is applied through the connecting pipe 603. The suction cup 602 performs a vacuuming operation to firmly adhere the brick to the top. Then, the control motor 704 is activated, driving the gear 703 to mesh with the transmission gear 8, rotating the adjusting ring 701. The inner groove 9 of the adjusting ring 701 slides along the slide bar 10. The driving block 702 rotates with the adjusting ring 701, pushing the transmission wheel 706 towards the center of the connecting seat 2. The connecting rod 707, driven by the transmission wheel 706, slides along the track groove 5, pushing each clamping bar 708 to synchronously retract towards the center, gradually clamping the edges and corners of the magnesia-carbon brick. During this process, the return spring 709 extends under tension. After the brick is firmly clamped, the telescopic rotation drive device transports the entire magnesia-carbon brick to the predetermined position.

[0038] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A magnesia-carbon brick handling clamp, comprising a drive arm (1) and a connecting seat (2), characterized in that: The drive arm (1) is a hydraulic telescopic cylinder. The telescopic end of the drive arm (1) is fixedly connected to a connecting block (3), and the other end of the connecting block (3) is fixedly connected to one side of the connecting seat (2). The end of the drive arm (1) away from the connecting block (3) is fixedly connected to a control shaft (4). The surface of the connecting seat (2) is provided with a track groove (5). The track groove (5) is X-shaped and the middle position is circular. The middle position of the track groove (5) is fixedly connected to an adsorption mechanism (6). The surface of the connecting seat (2) is movably connected to a clamping mechanism (7).

2. The magnesium-carbon brick handling clamp according to claim 1, characterized in that: The clamping mechanism (7) includes an adjusting ring (701), a driving block (702), a driving gear (703), a control motor (704), and a support frame (705). The top outer side of the adjusting ring (701) is provided with a transmission tooth (8), and the driving gear (703) meshes with the adjusting ring (701) through the transmission tooth (8). The driving gear (703) is fixedly connected to the output end of the control motor (704). The middle position of the support frame (705) is fixedly connected to the bottom of the control motor (704), and the bottom two sides of the support frame (705) are respectively fixedly connected to one side of the connecting seat (2). There are four driving blocks (702) arranged in a ring array and fixedly connected to the inner side of the adjusting ring (701). The inner side of the driving blocks (702) is arc-shaped.

3. The magnesium-carbon brick handling clamp according to claim 2, characterized in that: The outer side of the adjusting ring (701) is provided with a sliding groove (9). The sliding groove (9) is annular and has a T-shaped cross section. A set of left and right symmetrical sliding strips (10) are fixedly connected to the top of the connecting seat (2). The sliding strips (10) are adapted to the sliding groove (9), and the opposite sides of the sliding strips (10) are slidably connected to the inside of the sliding groove (9).

4. A magnesia-carbon brick handling clamp according to claim 2, characterized in that: The clamping mechanism (7) further includes a transmission wheel (706), a connecting rod (707), a clamping bar (708), and a return spring (709). Four transmission wheels (706) are provided, and one end of the connecting rod (707) is rotatably connected to the bottom axis of the transmission wheel (706). The clamping bars (708) are fixedly connected to the other end of the connecting rod (707), and one end of the return spring (709) is fixedly connected to the outer top of the clamping bar (708).

5. A magnesia-carbon brick handling clamp according to claim 4, characterized in that: The transmission wheel (706) and the clamping bar (708) are located at the top and bottom of the connecting seat (2) respectively, and the transmission wheel (706) is close to the driving block (702) respectively. The clamping bar (708) has a V-shaped cross section. The connecting rod (707) is slidably connected to the inside of the track groove (5). The end of the reset spring (709) away from the clamping bar (708) is fixedly connected to the middle position of the bottom four sides of the connecting seat (2).

6. A magnesium-carbon brick handling clamp according to claim 1, characterized in that: The adsorption mechanism (6) includes a fixed frame (601), a suction cup (602), a connecting tube (603), and a micro vacuum pump (604). The fixed frame (601) is fixedly connected to the outside of one end of the connecting tube (603), and the suction cup (602) is fixedly connected to the end of the connecting tube (603) near the fixed frame (601). The output end of the micro vacuum pump (604) is fixedly connected to the end of the connecting tube (603) away from the suction cup (602).

7. A magnesium-carbon brick handling clamp according to claim 6, characterized in that: The suction cup (602), the connecting tube (603) and the miniature vacuum pump (604) are interconnected. The suction cup (602) is located in the middle of the track groove (5), and the fixing bracket (601) is fixedly connected to the top middle of the connecting seat (2). The miniature vacuum pump (604) is fixedly connected to the side of the connecting seat (2) away from the connecting block (3).