A kind of refractory brick hoisting uses clamping jaw mechanism

Abstract

The utility model relates to refractory brick hoisting technical field, and disclose a kind of refractory brick hoisting use clamping jaw mechanism, including the hanger of connection in crane suspension end, the hanger section is U type, the clamping jaw system is arranged in the hanger below, the clamping jaw system includes two mobile seats sliding in the hanger sideboard and symmetrically arranged, the section of L type clamping arm is hinged in the mobile seat bottom end and sequentially transversely penetrates two the threaded rod of mobile seat, the clamping arm is symmetrically arranged, and the inside of clamping arm is the refractory brick to be hoisted. The utility model is driven by threaded rod and mobile seat is close to each other, mobile seat drives and its hinged clamping arm close to each other, the supporting plate of clamping arm bottom end is inserted into the wood pallet in the bottom of refractory brick, clamping arm is clamped in refractory brick on both sides, and supporting plate is supported at bottom, can prevent refractory brick overall collapse, simultaneously, the force requirement of two sides clamping arm is reduced, prevent clamping arm excessive force, so that refractory brick is damaged.

Description

Technical Field

[0001] This utility model relates to the field of refractory brick hoisting technology, and more specifically, to a refractory brick hoisting gripper mechanism. Background Technology

[0002] Refractory brick lifting grippers are tooling fixtures specifically designed for lifting refractory bricks. Their core function is to safely and securely grip refractory bricks, adapting to their high density, high hardness, and common block shapes. Structurally, they typically employ a symmetrical gripper arm design. Driven by manual, pneumatic, or hydraulic means, manual grippers are suitable for small-tonnage, low-frequency operations, while pneumatic and hydraulic grippers are used for large-tonnage, automated production lines. They can accommodate different specifications of refractory bricks, achieving versatility by adjusting the gripper spacing or changing the gripper heads. They are widely used in refractory brick production workshops for transfer and in kiln construction site lifting, improving operational efficiency and safety while reducing manual handling losses.

[0003] For the hoisting of large-tonnage refractory bricks, pneumatic or hydraulic grippers are usually used to clamp the refractory bricks on the side and move them under the action of a crane. However, the gripping force needs to be repeatedly adjusted. If the gripping force is too large, it will damage the bricks. If the gripping force is too small, it may not be able to maintain the force for holding and transporting the bricks. In addition, refractory bricks and other brick building materials are often equipped with wooden pallets at the bottom when they leave the factory to facilitate unified transportation as a whole. However, if the wooden pallet exceeds the range of the refractory bricks, it may press against the side gripping arms, providing resistance to the stable gripping of the grippers.

[0004] Therefore, this utility model provides a refractory brick lifting gripper mechanism to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a refractory brick lifting gripper mechanism, which has the advantage of being able to lift refractory bricks by applying force from the side and bottom.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a refractory brick hoisting gripper mechanism, comprising a hanger connected to the suspension end of a crane, the hanger having a U-shaped cross-section, a gripper system provided below the hanger, the gripper system comprising two movable seats symmetrically arranged and sliding within the side plate of the hanger, a gripper arm with an L-shaped cross-section hinged to the bottom end of the movable seats, and threaded rods sequentially penetrating the two movable seats laterally, the gripper arms being symmetrically arranged, the inner side of the gripper arm containing the refractory brick to be hoisted, at least two threaded rods symmetrically arranged on the movable seats, the threaded rods being threadedly connected to the movable seats, the two ends of the threaded rods being rotatably connected to the side plate of the hanger, the thread directions of the movable seats and the threaded rods being opposite, and a support plate being fixedly provided at the bottom end of the gripper arm.

[0007] As a preferred technical solution of this utility model, the top of the movable seat is provided with a plurality of sliding members A with a cross-section of T-shape, and the hanger is provided with a sliding groove A that fits with the sliding member A, and the sliding member A slides in the sliding groove A.

[0008] As a preferred embodiment of this utility model, the support plate is perpendicular to the side plate connected to the clamping arm and extends in a direction of mutual proximity.

[0009] As a preferred technical solution of this utility model, a servo motor is fixedly connected to the outside of the side plate of the hanger, and one end of the threaded rod passes through the hanger and is fixedly connected to the output end of the servo motor.

[0010] As a preferred technical solution of this utility model, the bottom of the side plate of the hanger is provided with a receiving groove, and a hanging plate is provided at the bottom of the receiving groove on the clamping arm. The hanging plate is slidably connected to the clamping arm. A first elastic element is provided in the receiving groove, and the two ends of the first elastic element are respectively connected to the top of the receiving groove and the hanging plate.

[0011] As a preferred embodiment of this utility model, the first elastic element may be a spring, with both ends of the spring fixedly disposed on the top of the receiving groove and the hanging plate, respectively.

[0012] As a preferred embodiment of this utility model, an inner clamping plate is hinged to the bottom end of the inner wall of the clamping arm, and a second elastic element is provided at the top end of the inner clamping plate near the clamping arm. The two ends of the second elastic element are respectively fixedly disposed on the inner clamping plate and the clamping arm.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, by setting a threaded rod, allows the gripper mechanism to be used by first rotating the threaded rod. Since the threads connecting the threaded rod to the two movable seats are opposite, the two movable seats move in opposite directions when rotated. The threaded rod causes the movable seats to separate from each other, and the movable seats cause the gripping arms hinged to them to separate from each other. Then, the movement of the crane drives the hanger, which in turn causes the gripping arms to fall to both sides of the refractory brick block. Then, rotating the threaded rod causes the threaded rod to move the movable seats closer to each other, and the movable seats cause the gripping arms hinged to them to move closer to each other. The support plate at the bottom of the gripping arm extends into the wooden tray at the bottom of the refractory brick. The gripping arms clamp the refractory brick on both sides, and the support plate supports it at the bottom, which can prevent the refractory brick from collapsing as a whole. At the same time, the force required for the gripping arms on both sides is reduced, preventing excessive force from the gripping arms from damaging the refractory brick. 2. By setting a first elastic element, when no goods are being hoisted, the first elastic element in the receiving groove on the hanger is in a relatively contracted state, and the two sides of the clamping arm are raised upward, and the clamping arm is in an open state, which makes it convenient to place the clamping claw system on both sides of the refractory brick. When hoisting the brick, the clamping arm gradually bears force, and the middle section of the clamping arm bears force on the moving seat. The moving seat slides on the hanger, while the two sides of the clamping arm are slidably connected to the hanging plate. The clamping arm drives the hanging plate to stretch the first elastic element and move downward. The clamping arm is in a clamping state, and the inner side of the clamping arm tends to be parallel to the refractory brick, which is beneficial to the overall force on the brick. Attached Figure Description

[0014] Figure 1 This is the overall elevation view of the present utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram showing the position of the support plate of this utility model; Figure 4 This is a cross-sectional view of the threaded rod position of this utility model; Figure 5 This is a cross-sectional view of the location of the receiving groove in this utility model.

[0015] In the figure: 1. Hanger; 11. Sliding groove A; 12. Receiving groove; 2. Gripper system; 21. Moving seat; 211. Sliding element A; 22. Grip arm; 23. Threaded rod; 24. Servo motor; 25. Support plate; 3. Hanging plate; 4. First elastic element; 5. Inner clamping plate; 51. Second elastic element. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1 to 5As shown, this utility model provides a refractory brick hoisting gripper mechanism, including a hanger 1 connected to the suspension end of a crane. The hanger 1 has a U-shaped cross-section. A gripper system 2 is provided below the hanger 1. The gripper system 2 includes two movable seats 21 that slide within the side plate of the hanger 1 and are symmetrically arranged, a gripper arm 22 with an L-shaped cross-section hinged to the bottom end of the movable seat 21, and a threaded rod 23 that passes horizontally through the two movable seats 21 in sequence. The gripper arms 22 are symmetrically arranged, and the refractory brick to be hoisted is located inside the gripper arm 22. There are at least two threaded rods 23 that are symmetrically arranged on the movable seats 21. The threaded rods 23 are threadedly connected to the movable seats 21, and both ends of the threaded rods 23 are rotatably connected to the side plate of the hanger 1. The thread directions of the movable seats 21 and the threaded rods 23 are opposite. A support plate 25 is fixedly provided at the bottom end of the gripper arm 22.

[0018] Specifically, when using this gripper mechanism, first rotate the threaded rod 23. Since the threads connecting the threaded rod 23 and the two movable seats 21 are opposite, when rotating, the two movable seats 21 move in opposite directions. The threaded rod 23 drives the movable seats 21 to separate from each other, and the movable seats 21 drive the gripping arms 22 hinged to them to separate from each other. Then, the crane moves to drive the hanger 1, which in turn drives the gripping arms 22 to fall to both sides of the refractory brick block. Then rotate the threaded rod 23 again, and the threaded rod 23 drives the movable seats 21 to move closer to each other. The movable seats 21 drive the gripping arms 22 hinged to them to move closer to each other. The support plate 25 at the bottom of the gripping arms 22 extends into the wooden tray at the bottom of the refractory brick. The gripping arms 22 clamp the refractory brick on both sides, and the support plate 25 supports it at the bottom, which can prevent the refractory brick from collapsing as a whole. At the same time, the force required for the gripping arms 22 on both sides is reduced to prevent the gripping arms 22 from being used too forcefully and damaging the refractory brick.

[0019] Furthermore, the top of the movable seat 21 is provided with several sliding members A211 with a T-shaped cross-section, and the hanger 1 is provided with a sliding groove A11 that fits with the sliding member A211. The sliding member A211 slides within the sliding groove A11. The sliding of the sliding member A211 on the sliding groove A11 causes the movable seat 21 to slide on the hanger 1.

[0020] Furthermore, the support plate 25 is perpendicular to the side plate connected to the clamping arm 22 and extends in a direction of mutual proximity. The vertical arrangement of the support plate 25 conforms to the conventional structure of bricks. The length of the support plate 25 is determined by a combination of the opening size of the clamping arm 22 and the size of the refractory brick stack, to prevent the support plate 25 from being too long and blocking the refractory bricks from entering between the clamping arms 22.

[0021] It should be noted that a servo motor 24 is fixedly connected to the outside of the side plate of the hanger 1, and one end of the threaded rod 23 passes through the hanger 1 and is fixedly connected to the output end of the servo motor 24. The servo motor 24 is used to drive the threaded rod 23 to rotate. The model of the servo motor 24 can be CDM110-1.5kW, and it is connected to a 380V AC power supply.

[0022] It is worth noting that a receiving groove 12 is provided at the bottom of the side plate of the hanger 1, and a hanging plate 3 is provided at the bottom of the receiving groove 12 on the clamping arm 22. The hanging plate 3 is slidably connected to the clamping arm 22. A first elastic element 4 is provided in the receiving groove 12, and the two ends of the first elastic element 4 are respectively connected to the top of the receiving groove 12 and the hanging plate 3.

[0023] Specifically, when no goods are being hoisted, the first elastic element 4 in the receiving groove 12 on the hanger 1 is in a relatively contracted state, and the two sides of the clamping arm 22 are raised upwards, making it easy to place the gripper system 2 on both sides of the refractory brick. When hoisting the brick, the clamping arm 22 gradually bears force, and the middle section of the clamping arm 22 bears force on the moving seat 21, which slides on the hanger 1. The two sides of the clamping arm 22 are slidably connected to the hanging plate 3. The clamping arm 22 drives the hanging plate 3 to stretch the first elastic element 4 and move downwards. The clamping arm 22 is in a clamping state, and the inner side of the clamping arm 22 tends to be parallel to the refractory brick, which is beneficial for the overall force on the brick.

[0024] Furthermore, the first elastic element 4 can be a spring, with its two ends fixedly mounted on the top of the receiving groove 12 and the hanging plate 3, respectively. A high-strength spring can be used, which can bend to a certain extent to accommodate the rotation of the clamping arm 22 and the hanger 1 at a certain angle.

[0025] Furthermore, an inner clamping plate 5 is hinged to the bottom of the inner wall of the clamping arm 22, and a second elastic member 51 is provided at the top of the inner clamping plate 5 near the clamping arm 22. The two ends of the second elastic member 51 are respectively fixed on the inner clamping plate 5 and the clamping arm 22.

[0026] Specifically, since the top bricks of the refractory bricks are at a high position and the bottom of the clamping arms 22 tend to move closer to each other, the bottom of the refractory bricks is under significant stress, which will result in less stress on the top of the refractory bricks and the top refractory bricks are prone to slipping. Therefore, an inner clamping plate 5 is set up, and the second elastic element 51 at the top of the inner clamping plate 5 abuts against the inner clamping plate 5, so that the bricks above the cubic stack of refractory bricks are also tightly clamped, preventing the top bricks from slipping during hoisting.

[0027] Working principle and usage process of this utility model: When using this gripper mechanism, first rotate the threaded rod 23. Since the threads connecting the threaded rod 23 and the two movable seats 21 are opposite, when rotating, the two movable seats 21 move in opposite directions. The threaded rod 23 drives the movable seats 21 to separate from each other, and the movable seats 21 drive the gripper arms 22 that are hinged to them to separate from each other. Then, the crane moves to drive the lifting frame 1, which in turn drives the gripper arms 22 to fall to both sides of the refractory brick block. During this process, since no goods are being lifted, the first elastic element 4 in the receiving groove 12 on the lifting frame 1 is in a relatively contracted state, and the two sides of the gripper arms 22 are raised upwards, and the gripper arms 22 are in an open state, which makes it convenient to place the gripper system 2 on both sides of the refractory brick. Rotating the threaded rod 23 causes the movable seats 21 to move closer together, which in turn causes the clamping arms 22, which are hinged to them, to move closer together. The support plate 25 at the bottom of the clamping arms 22 extends into the wooden tray at the bottom of the refractory brick. The clamping arms 22 clamp the refractory brick on both sides, while the support plate 25 supports it from the bottom, preventing the refractory brick from collapsing as a whole. At the same time, the force required on the clamping arms 22 is reduced to prevent excessive force from damaging the refractory brick. During this process, the clamping arms 22 gradually bear force. The middle section of the clamping arms 22 bears force on the movable seats 21, which slides on the hanger 1. The two sides of the clamping arms 22 are slidably connected to the hanging plates 3. The clamping arms 22 cause the hanging plates 3 to stretch the first elastic element 4 and move downward. The clamping arms 22 are in a clamping state, and the inner side of the clamping arms 22 tends to be parallel to the refractory brick, which is beneficial for the overall force on the brick. Because the top bricks of the refractory bricks are at a high position and the bottom of the clamping arms 22 tend to move closer together, the bottom of the refractory bricks is subjected to significant force, which will result in less force on the top of the refractory bricks. The top refractory bricks are prone to slipping. Therefore, an inner clamping plate 5 is set. The second elastic element 51 at the top of the inner clamping plate 5 abuts against the inner clamping plate 5, so that the bricks above the cubic stack of refractory bricks are also tightly clamped, preventing the top bricks from slipping during hoisting. The servo motor 24 is used to drive the threaded rod 23 to rotate. The model of the servo motor 24 can be CDM110-1.5kW, connected to a 380V AC power supply.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A refractory brick hoisting gripper mechanism, comprising a hanger (1) connected to the suspension end of a hoist, characterized in that: The hanger (1) has a U-shaped cross section. A gripper system (2) is provided below the hanger (1). The gripper system (2) includes two movable seats (21) that slide inside the side plate of the hanger (1) and are symmetrically arranged, a gripper arm (22) with an L-shaped cross section that is hinged to the bottom end of the movable seat (21), and a threaded rod (23) that passes through the two movable seats (21) in sequence. The gripper arm (22) is symmetrically arranged, and the inner side of the gripper arm (22) is the refractory brick to be lifted. There are no less than two threaded rods (23) that are symmetrically arranged on the movable seat (21). The threaded rod (23) is threadedly connected to the movable seat (21). The two ends of the threaded rod (23) are rotatably connected to the side plate of the hanger (1). The thread direction of the movable seat (21) and the threaded rod (23) is opposite. A support plate (25) is fixedly provided at the bottom end of the gripper arm (22).

2. The refractory brick lifting gripper mechanism according to claim 1, characterized in that: The top of the movable seat (21) is provided with several sliding members A (211) with a T-shaped cross section. The hanger (1) is provided with a sliding groove A (11) that fits with the sliding member A (211). The sliding member A (211) slides in the sliding groove A (11).

3. The refractory brick hoisting gripper mechanism according to claim 1, characterized in that: The support plate (25) is perpendicular to the side plate connected to the clamp arm (22) and extends in a direction of mutual proximity.

4. The refractory brick lifting gripper mechanism according to claim 1, characterized in that: A servo motor (24) is fixedly connected to the outside of the side plate of the hanger (1), and one end of the threaded rod (23) passes through the hanger (1) and is fixedly connected to the output end of the servo motor (24).

5. The refractory brick lifting gripper mechanism according to claim 1, characterized in that: The bottom of the side plate of the hanger (1) is provided with a receiving groove (12). The bottom of the receiving groove (12) is provided with a hanging plate (3) on the clamping arm (22). The hanging plate (3) is slidably connected to the clamping arm (22). A first elastic element (4) is provided in the receiving groove (12). The two ends of the first elastic element (4) are respectively connected to the top of the receiving groove (12) and the hanging plate (3).

6. The refractory brick lifting gripper mechanism according to claim 5, characterized in that: The first elastic element (4) can be a spring, with its two ends fixedly disposed on the top of the receiving groove (12) and the hanging plate (3), respectively.

7. The refractory brick hoisting gripper mechanism according to claim 1, characterized in that: The inner wall of the clamping arm (22) is hinged to an inner clamping plate (5). The top of the inner clamping plate (5) near the clamping arm (22) is provided with a second elastic element (51). The two ends of the second elastic element (51) are respectively fixed on the inner clamping plate (5) and the clamping arm (22).

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