A cylinder connecting device for opening a ladle hatch

Abstract

The present application belongs to the technical field of steel metallurgical equipment, and discloses a cylinder connecting device for opening ladle hatch, which comprises a fixed base, a clamping assembly and an intermediate rod, one side of the fixed base is fixedly connected with the clamping assembly, the other side of the fixed base is fixedly connected with a cylinder telescopic rod, one end of the intermediate rod is connected with a connecting rod on the ladle hatch, and the other end is provided with a boss for clamping of the clamping assembly. The cylinder connecting device can solve the problem that it is difficult to connect the cylinder telescopic rod with the connecting rod when the cylinder is inserted into the cylinder base, and improve the efficiency of opening the ladle hatch.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel metallurgical equipment, in particular to a cylinder connecting device for opening ladle door. BACKGROUND

[0002] In the ladle hot repair operation, when the robot clamps the cylinder to the cylinder base on the ladle mechanism (as shown in Figure 1 ), the flange on the cylinder body needs to be inserted into the limiting slot on the cylinder base, and the T-shaped block on the cylinder extension rod needs to be inserted into the T-shaped slot on the connecting rod. Since the cylinder extension rod will extend and retract relative to the cylinder body during operation, it is difficult to ensure that the position of the cylinder extension rod relative to the cylinder body is consistent each time, and thus it is difficult to accurately insert the T-shaped block into the T-shaped slot when inserting the flange into the limiting slot, resulting in low connection accuracy of the cylinder and the connecting rod, which affects the efficiency of opening the ladle door. SUMMARY

[0003] In order to solve the problem of connecting the cylinder extension rod and the connecting rod when the cylinder is inserted into the cylinder base, the present application provides a cylinder connecting device for opening a ladle door.

[0004] The present application provides a cylinder connecting device for opening a ladle door to solve the above technical problems, which comprises a fixed base, a clamping assembly and an intermediate rod. One side of the fixed base is fixedly connected with the clamping assembly, and the other side of the fixed base is fixedly connected with the cylinder extension rod. One end of the intermediate rod is connected with the connecting rod on the ladle door, and the other end is provided with a boss for clamping by the clamping assembly.

[0005] In the embodiment of the present application, the clamping assembly comprises a connecting base and two clamping jaws. The fixed base is fixedly connected with the connecting base, and the two clamping jaws are symmetrically connected to the connecting base. The clamping ends of the two clamping jaws are provided with grooves for clamping the boss.

[0006] In the embodiment of the present application, the clamping assembly further comprises a positioning pin. A first connecting hole is formed in the clamping jaw, and a second connecting hole is formed in the connecting base in alignment with the connecting hole. The positioning pin passes through the first connecting hole and the second connecting hole to allow the clamping jaw to rotate relative to the connecting base. The clamping assembly further comprises a resilient member, which is arranged at the two ends of the clamping jaw and allows the clamping ends of the two clamping jaws to approach each other.

[0007] In the embodiment of the present application, the clamping ends of the two clamping jaws are provided with inclined first guide surfaces, and the two clamping jaws are away from each other when the first guide surfaces contact the boss. In addition, the end surface of the boss is provided with an inclined second guide surface, and the clamping ends of the two clamping jaws are away from each other when the second guide surface on the boss contacts the clamping ends.

[0008] In the embodiment of the present application, the clamping assembly further comprises a driving motor arranged in the connecting base, the driving motor is connected with the two clamping jaws through a gear set to drive the two clamping jaws to move simultaneously; the connecting base is further provided with a distance sensor connected with the driving motor, the distance sensor triggers the driving motor to drive the two clamping jaws to move by detecting the distance between the boss and the clamping jaw.

[0009] In the embodiment of the present application, the end of the intermediate rod connected with the connecting rod is provided with a T-shaped table, and the T-shaped table is insertedly connected with the original T-shaped groove on the connecting rod.

[0010] In the embodiment of the present application, the intermediate position of the intermediate rod is provided with an abutting table, and the oil cylinder connecting device further comprises an abutting block, the inside of the abutting block is provided with an abutting groove matched in size with the abutting table, when the abutting block is clamped on the intermediate rod, the abutting groove abuts on the abutting table, and the outside of the abutting block abuts on the end face of the connecting rod.

[0011] In the embodiment of the present application, the fixed base comprises a connecting plate and a fixed plug plate, the fixed plug plate is provided with a stud threadedly connected with the oil cylinder telescopic rod, one side of the connecting plate is attached to the connecting base and connected to the connecting base by screws, and the side of the connecting plate attached to the connecting base is provided with an accommodating groove accommodating the fixed plug plate, the other side of the connecting plate is attached to the oil cylinder telescopic rod and connected to the oil cylinder telescopic rod by the stud.

[0012] In the embodiment of the present application, the oil cylinder connecting device further comprises a connecting sleeve, one end of the connecting sleeve is fixedly connected to the oil cylinder body, the other end of the connecting sleeve is provided with an inserted table connected with the oil cylinder base, and the inside of the connecting sleeve is provided with an accommodating space accommodating the clamping assembly.

[0013] In the embodiment of the present application, the side of the fixed base is provided with a limiting protrusion, and the connecting sleeve is provided with a limiting sliding groove matched with the limiting protrusion to slide the limiting protrusion when the oil cylinder telescopic rod moves.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] Through the above technical scheme, when the oil cylinder is installed on the oil cylinder base, it is not necessary to adjust the position of the oil cylinder telescopic rod, the intermediate rod is connected to the connecting rod, and after the oil cylinder is installed on the oil cylinder base, the oil cylinder telescopic rod is controlled to extend and drive the clamping assembly to move towards the intermediate rod, so that the clamping assembly can be clamped on the intermediate rod, the oil cylinder telescopic rod is indirectly connected with the connecting rod through the clamping assembly and the intermediate rod, the connection efficiency and accuracy of the oil cylinder telescopic rod and the connecting rod are improved, and subsequent operation of opening the ladle door is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the embodiments of the application. In the drawings:

[0017] Figure 1 is a schematic diagram of the side surface of the prior art oil cylinder connecting device and the ladle mechanism;

[0018] Figure 2 is a schematic diagram of the side surface of the oil cylinder connecting device of an embodiment of the application applied to the oil cylinder and the ladle mechanism;

[0019] Figure 3 is a schematic diagram of the side surface of the oil cylinder connecting device of an embodiment of the application applied to the oil cylinder;

[0020] Figure 4 is a schematic diagram of the explosion structure of the oil cylinder connecting device of an embodiment of the application and the oil cylinder;

[0021] Figure 5 is a schematic diagram of the explosion structure of the oil cylinder connecting device of an embodiment of the application and the connecting rod;

[0022] Figure 6 is a schematic diagram of the explosion structure of the oil cylinder connecting device of an embodiment of the application and the connecting rod;

[0023] BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 1. Oil cylinder connecting device; 11. Fixed base; 12. Clamping assembly; 13. Intermediate rod; 14. Abutting block; 15. Connecting sleeve; 111. Connecting plate; 112. Fixed plugboard; 113. Limiting protrusion; 121. Connecting base; 122. Clamping jaw; 123. Positioning pin; 124. Elastic member; 131. Boss; 132. T-shaped table; 133. Abutting table; 151. Limiting sliding groove; 152. Plug-in table; 1111. Containing groove; 1112. Limiting ring; 1121. Stud; 1211. Second connecting hole; 1221. Groove; 1222. First connecting hole; 1223. First guide surface; 1311. Second guide surface; 21. Ladle hatch; 22. Oil cylinder body; 23. Oil cylinder telescopic rod; 24. Oil cylinder base; 25. Connecting rod; 221. Flange; 231. T-shaped block; 241. Limiting groove; 251. T-shaped groove. DETAILED DESCRIPTION

[0025] The specific embodiments of the application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely intended to illustrate and explain the application, and are not intended to limit the application.

[0026] The embodiment of the present application provides a cylinder connecting device for opening a ladle door, which can be connected with a cylinder during the opening of the ladle door, and after the cylinder is inserted into a cylinder base, the cylinder connecting device can be connected with a connecting rod in the ladle door conveniently and quickly, thereby improving the connection accuracy of the cylinder and the connecting rod and the efficiency of opening the ladle door.

[0027] As shown in Figure 1 the prior art, a cylinder base 24 is fixed on a ladle mechanism, a ladle door 21 is slidingly connected with the ladle mechanism, and when the ladle door 21 slides along the ladle mechanism to an upper limit position, the ladle door 21 is in a locked state, and when the ladle door 21 slides along the ladle mechanism to a lower limit position, the ladle door 21 is in a movable state, at this time, the ladle door 21 is pulled to rotate relative to the ladle mechanism, thereby completing the opening of the ladle door 21, so as to facilitate the workers to perform subsequent operations such as replacing a nozzle, replacing a slide plate and nozzle burning.

[0028] The specific way of driving the ladle door 21 to slide along the ladle mechanism is that a limiting groove 241 is formed on the cylinder base 24, a connecting rod 25 with a T-shaped groove 251 is connected to the ladle door 21, the flange 221 on the cylinder body 22 is inserted into the limiting groove 241, and the T-shaped block 231 on the cylinder telescopic rod 23 is inserted into the T-shaped groove 251, thereby completing the connection of the cylinder and the ladle door 21, and then the cylinder telescopic rod 23 is controlled to extend or retract, so as to realize the effect of the ladle door 21 sliding along the ladle mechanism. However, when the cylinder is installed on the cylinder base 24, it is difficult to simultaneously ensure the insertion of the T-shaped block 231 and the T-shaped groove 251, and the position of the cylinder telescopic rod 23 needs to be adjusted for many times to enable the insertion of the T-shaped block 231 and the T-shaped groove 251, thereby causing the connection accuracy of the cylinder and the connecting rod 25 to be too low.

[0029] As shown in Figures 2-5 to solve the problems in the prior art, the present application provides a cylinder connecting device 1, which comprises a fixed base 11, a clamping assembly 12 and an intermediate rod 13, one side of the fixed base 11 is fixedly connected with the clamping assembly 12, the other side of the fixed base 11 is fixedly connected with the cylinder telescopic rod 23, one end of the intermediate rod 13 is connected with the connecting rod 25 on the ladle door 21, and the other end is provided with a boss 131 for clamping of the clamping assembly 12.

[0030] The clamping assembly 12 is connected to the telescopic cylinder through the fixed base 11, and one end of the intermediate rod 13 is connected to the connecting rod 25, and the other end is provided with a boss 131 for clamping by the clamping assembly 12, so that when it is needed to push the ladle door 21 to slide along the ladle mechanism, the telescopic cylinder 23 is first retracted to insert the flange 221 on the oil cylinder into the limiting groove 241, then the telescopic cylinder 23 is controlled to extend, so that the telescopic cylinder 23 drives the clamping assembly 12 to move to the intermediate rod 13 and clamp the boss 131, so that the oil cylinder is connected with the connecting rod 25 through the oil cylinder connecting device 1, and finally, the telescopic cylinder 23 is continuously controlled to extend, so that the ladle door 21 can be pushed to the movable state, and at this time, the ladle door 21 can be rotated relative to the ladle mechanism by pulling the ladle door 21, and then the operation of opening the ladle door 21 is completed.

[0031] The technical scheme of the present application first installs the oil cylinder on the oil cylinder base 24, and then connects the oil cylinder with the connecting rod 25 in the ladle through the oil cylinder connecting device 1, so that the problem of low connection accuracy caused by simultaneous connection of the oil cylinder and the connecting rod 25 in the prior art can be avoided, and after the oil cylinder is installed on the oil cylinder base 24, the oil cylinder connecting device 1 can be connected with the connecting rod 25 by controlling the telescopic cylinder 23 to extend, which is more conducive to the connection of the oil cylinder and the connecting rod 25, and improves the connection accuracy of the two and the efficiency of opening the ladle door 21.

[0032] In other examples, the connecting rod 25 and the intermediate rod 13 can be made in one piece, and the structure of the connecting rod 25 connected with the ladle door 21 and the boss 131 on the intermediate rod 13 are reserved, so that the one-piece connecting rod 25 can be connected with the ladle door 21 and clamped by the clamping assembly 12, so as to ensure that the ladle door 21 can slide along the ladle mechanism under the drive of the oil cylinder, and can be disconnected from the one-piece connecting rod 25 when the ladle door 21 reaches the active position to rotate.

[0033] As shown in FIG. Figure 6 In the embodiment of the present application, the clamping assembly 12 includes a connecting base 121 and two clamping jaws 122, the fixed base 11 is fixedly connected with the connecting base 121, and the two clamping jaws 122 are symmetrically and rotatably connected to the connecting base 121, and the clamping ends of the two clamping jaws 122 are provided with recesses 1221 for clamping the boss 131.

[0034] Two pieces of the clamping jaw 122 are symmetrically arranged on the fixed base 11 and are rotationally connected with the fixed base 11, so that the fixed base 11 is fixedly connected with the connecting base 121, and after the connecting base 121 is fixedly connected with the cylinder telescopic rod, when the cylinder telescopic rod is extended relative to the cylinder body, the clamping assembly 12 is driven to move towards the middle rod 13, and the two pieces of the clamping jaw 122 clamp the boss 131, so that the connection between the clamping assembly 12 and the middle rod 13 is completed, then the pin on the connecting rod 25 is removed, so that the ladle hatch 21 is driven to slide relative to the ladle mechanism under the driving of the cylinder, when the ladle hatch 21 slides to the lower limit position, the ladle hatch 21 is disconnected with the connecting rod 25 by pulling the ladle hatch 21, and the operation of opening the ladle hatch 21 is completed.

[0035] By arranging the groove 1221 on the clamping end of the two pieces of the clamping jaw 122, when the clamping jaw 122 is driven by the cylinder telescopic rod to move towards the middle rod 13, the clamping jaw 122 is outwardly rotated and opened when the clamping jaw 122 is in contact with the boss 131, and the clamping jaw 122 is inwardly rotated and clamped when the groove 1221 reaches the position of the boss 131, the groove 1221 is clamped with the boss 131, so that the clamping of the clamping assembly 12 on the middle rod 13 is formed, when the clamping of the clamping assembly 12 on the middle rod 13 is needed, the pin is inserted into the connecting rod 25, so that the connecting rod 25 is fixed relative to the oil cylinder base 24, and then the flange 221 is separated from the limiting groove 241 while the clamping jaw 122 with the groove 1221 is separated from the boss 131 by moving the oil cylinder transversely, which is more conducive to the connection and disassembly of the oil cylinder connecting device 1 and the connecting rod 25, and improves the efficiency of opening the ladle hatch 21.

[0036] In the embodiment of the present application, the clamping assembly 12 further comprises a positioning pin 123, a first connecting hole 1222 is arranged on the clamping jaw 122, and a second connecting hole 1211 is arranged on the connecting base 121 and is aligned with the connecting hole, and the positioning pin 123 passes through the first connecting hole 1222 and the second connecting hole 1211 to enable the clamping jaw 122 to rotate relative to the connecting base 121.

[0037] By arranging the first connecting hole 1222 on the clamping jaw 122 and the second connecting hole 1211 on the connecting base 121, and then aligning the first connecting hole 1222 with the second connecting hole 1211 and inserting the positioning pin into the first connecting hole 1222 and the second connecting hole 1211, the clamping jaw 122 can rotate relative to the connecting base 121, so as to clamp the boss 131 by the clamping assembly 12.

[0038] In other examples, the connection mode of the clamping jaw 122 and the connecting base 121 can also be a rotating shaft connection, a bolt connection and the like.

[0039] In the embodiment of the present application, the clamping assembly 12 comprises an elastic member 124, two ends of the elastic member 124 abut on the two clamping jaws 122 respectively, and the clamping ends of the two clamping jaws 122 are close to each other.

[0040] By arranging the elastic member 124 between the two clamping jaws 122, the clamping ends of the two clamping jaws 122 are kept close to each other under the action of the elastic member 124. When the two clamping jaws 122 are in contact with the boss 131, the two clamping jaws 122 are away from each other and compress the elastic member 124. When the grooves 1221 on the two clamping jaws 122 reach the position of the boss 131, the elastic member 124 releases the elastic force, so that the grooves 1221 are clamped with the boss 131, and the two clamping jaws 122 are kept in the state of clamping the boss 131 under the action of the elastic member 124, thereby preventing the clamping assembly 12 from being disconnected with the intermediate rod 13. The elastic member 124 can be any one of a spring and a torsion spring.

[0041] In the embodiment of the present application, the clamping ends of the two clamping jaws 122 are provided with inclined first guide surfaces 1223, and the two clamping jaws 122 are away from each other when the first guide surfaces 1223 are in contact with the boss 131; and / or the end surface of the boss 131 is provided with an inclined second guide surface 1311, and the clamping ends of the two clamping jaws 122 are away from each other when the clamping ends are in contact with the second guide surface 1311 on the boss 131.

[0042] By arranging the inclined first guide surfaces 1223 on the clamping ends of the two clamping jaws 122, a guiding action is provided when the two clamping jaws 122 are in contact with the boss 131, so that the two clamping jaws 122 are away from each other under the action of the first guide surfaces 1223, thereby facilitating the opening of the two clamping jaws 122 for clamping preparation. Similarly, by arranging the inclined second guide surface 1311 on the end surface of the boss 131, a guiding action is provided when the two clamping jaws 122 are in contact with the boss 131, so that the two clamping jaws 122 are away from each other under the action of the second guide surface 1311, thereby facilitating the opening of the two clamping jaws 122 for clamping preparation. In the embodiment of the present application, the first guide surfaces 1223 are arranged on the clamping jaws 122, and the second guide surfaces 1311 are arranged on the boss 131. In other embodiments, the first guide surfaces 1223 can be omitted, or the second guide surfaces 1311 can be omitted.

[0043] In one of the embodiments of the present application, the elastic member 124 can be omitted, and the clamping assembly 12 further comprises a driving motor arranged in the connecting base 121, the driving motor is connected with the two clamping jaws 122 through a gear set, and can drive the two clamping jaws 122 to move away from each other or move close to each other under the driving of the driving motor, that is, drive the two clamping jaws 122 to open or clamp, and then drive the two clamping jaws 122 to open by the driving motor before clamping the boss 131, and drive the two clamping jaws 122 to clamp after the recess 1221 and the boss 131 are aligned, so as to complete the clamping operation of the clamping assembly 12 on the intermediate rod 13. In this embodiment, the connecting base 121 is further provided with a distance sensor connected with the driving motor, the distance sensor is used for detecting the distance between the boss 131 and the clamping jaw 122, and is configured to trigger the driving motor to drive the clamping jaw 122 to open when the distance between the clamping jaw 122 and the boss 131 is greater than a first threshold value, and trigger the driving motor to drive the clamping jaw 122 to clamp when the distance between the clamping jaw 122 and the boss 131 is less than a second threshold value, so as to realize the intelligent clamping action of the clamping assembly 12 on the intermediate rod 13. The first threshold value is 5-10 cm above the boss 131, and the second threshold value is the position when the recess 1221 is flush with the boss 131.

[0044] As shown in Figure 5 In the embodiment of the present application, the end of the intermediate rod 13 connected with the connecting rod 25 is provided with a T-shaped table 132, and the T-shaped table 132 is insertedly connected with the original T-shaped groove 251 on the connecting rod 25.

[0045] By arranging the T-shaped table 132 at one end of the intermediate rod 13, the intermediate rod 13 is insertedly connected with the T-shaped groove 251 on the connecting rod 25 through the T-shaped table 132, so that the clamping assembly 12 can be conveniently connected with the ladle hatch 21 by clamping the intermediate rod 13 and push the ladle hatch 21 to slide up and down. The T-shaped table 132 and the T-shaped groove 251 are insertedly connected, so as to facilitate the connection and disassembly of the intermediate rod 13 and the connecting rod 25, and the disassembly of the intermediate rod 13 is more convenient and fast.

[0046] In the embodiment of the present application, the intermediate position of the intermediate rod 13 is provided with an abutting table 133, and the oil cylinder connecting device 1 further comprises an abutting block 14, the inside of the abutting block 14 is provided with an abutting groove matched in size with the abutting table 133, and when the abutting block 14 is clamped on the intermediate rod 13, the abutting groove is abutted on the abutting table 133, and the outside of the abutting block 14 is abutted on the end face of the connecting rod 25.

[0047] The resisting block 14 is arranged in the middle position of the middle rod 13, and after the middle rod 13 is connected with the connecting rod 25 through the plug-in connection, the inner part of the resisting block 14 is resisted by the resisting platform 133, and the outer surface of the resisting block 14 is resisted by the end surface of the connecting rod 25, so that the connection stability between the middle rod 13 and the connecting rod 25 is strengthened, the middle rod 13 is prevented from falling off the connecting rod 25, that is, the T-shaped platform 132 is prevented from separating from the T-shaped groove 251, in the embodiment of the application, the resisting block 14 is formed by splicing two rectangular blocks, the resisting surface with the size matched with the resisting platform 133 is formed between the two rectangular blocks, when the resisting block 14 is installed, the two rectangular blocks are wrapped around the four sides of the resisting platform 133, and the two rectangular blocks are locked through the bolts, so that the resisting surface is tightly attached to the resisting platform 133, and the bottom of the resisting block 14 is tightly attached to the top of the connecting rod 25, so that the connection between the middle rod 13 and the connecting rod 25 is more firm and stable.

[0048] As shown in Figure 6 In the embodiment of the application, the fixed base 11 comprises a connecting plate 111 and a fixed plug plate 112, the fixed plug plate 112 is provided with a stud 1121 which is screwed with the oil cylinder telescopic rod 23, one side of the connecting plate 111 is attached to the connecting base 121 and is connected to the connecting base 121 through the screw, and the side of the connecting plate 111 which is attached to the connecting base 121 is provided with an accommodating groove 1111 which accommodates the fixed plug plate 112, and the other side of the connecting plate 111 is attached to the oil cylinder telescopic rod 23 through the stud 1121.

[0049] The stud 1121 is arranged on the fixed plug plate 112, and the accommodating groove 1111 is arranged on the connecting plate 111, when the fixed base 11 is installed, the stud 1121 is first passed through the connecting plate 111, and the fixed plug plate 112 is accommodated in the accommodating groove 1111, then the connecting plate 111 is attached to the connecting base 121 and is screwed through the bolt, so that the fixed base 11 and the connecting base 121 are relatively fixed, and then the fixed base 11 is connected to the oil cylinder telescopic rod 23 through the stud 1121, so that the fixed base 11, the oil cylinder telescopic rod 23 and the clamping assembly 12 are relatively fixed, so that the clamping assembly 12 is driven to move through the movement of the oil cylinder telescopic rod 23 and the action of moving the ladle door 21 up and down is realized.

[0050] The oil cylinder telescopic rod 23 and the clamping assembly 12 are connected through the fixed base 11, so that the mechanical structure of the clamping assembly 12 is more simple, and the production and manufacturing of the clamping assembly 12 are facilitated; the accommodating groove 1111 is formed in the connecting plate 111, so that the fixed plug plate 112 is accommodated in the accommodating groove 1111, relative rotation between the fixed plug plate 112 and the connecting plate 111 is prevented, meanwhile, the connecting plate 111 can be ensured to be attached to the connecting base 121, the contact area between the connecting plate 111 and the connecting base 121 is increased, and the connection firmness of the fixed base 11 and the clamping assembly 12 is improved.

[0051] In the embodiment of the present application, the side, away from the accommodating groove 1111, of the connecting plate 111 is provided with a protruding limiting ring 1112, the inner diameter of the limiting ring 1112 is matched with the outer diameter of the oil cylinder telescopic rod 23, after the stud 1121 is connected with the oil cylinder telescopic rod 23, the end of the oil cylinder telescopic rod 23 is accommodated in the limiting ring 1112, so that transverse sliding between the oil cylinder telescopic rod 23 and the fixed base 11 is prevented, and the stability of the connection between the two is improved.

[0052] In the embodiment of the present application, the oil cylinder connecting device 1 further comprises a connecting sleeve 15, one end of the connecting sleeve 15 is fixedly connected to the oil cylinder barrel 22, the other end is provided with a plug-in table 152 connected with the oil cylinder base 24, and the inside of the connecting sleeve 15 is provided with an accommodating space for accommodating the clamping assembly 12.

[0053] The connecting sleeve 15 is connected to the oil cylinder barrel 22, and the other end is connected with the oil cylinder base 24 through the plug-in table 152, that is, the plug-in table 152 is inserted into the limiting groove 241 on the oil cylinder base 24, so that the oil cylinder is fixed to the oil cylinder base 24 under the connection of the connecting sleeve 15, the distance between the oil cylinder telescopic rod 23 and the intermediate rod 13 is increased, and the distance between the oil cylinder telescopic rod 23 and the intermediate rod 13 is prevented from being too close to cause the clamping assembly 12 to be unable to be connected with the intermediate rod 13. Before the connecting sleeve 15 is inserted into the limiting groove 241, the oil cylinder telescopic rod 23 is first controlled to be retracted, so that the clamping assembly 12 is accommodated in the accommodating space, and then the plug-in table 152 is inserted into the limiting groove 241, so that the distance between the oil cylinder and the intermediate is increased, and then the oil cylinder telescopic rod 23 is controlled to be extended, so that the clamping assembly 12 is driven by the oil cylinder telescopic rod 23 to move to the intermediate rod 13 and be clamped on the boss 131, so as to facilitate the subsequent operation of pushing the ladle hatch door 21 to slide and opening the ladle hatch door 21. The connecting sleeve 15 and the oil cylinder barrel are connected through screws, so that the connecting sleeve 15 can be removed from the oil cylinder barrel 22 when the oil cylinder is idle, and the oil cylinder and the connecting sleeve 15 are conveniently accommodated and arranged.

[0054] In the embodiment of the present application, the side of the fixed base 11 is provided with a limiting protrusion 113, and the connecting sleeve 15 is provided with a limiting sliding groove 151 corresponding to the limiting protrusion 113, so that the limiting protrusion 113 slides in the limiting sliding groove 151 when the oil cylinder telescopic rod 23 moves.

[0055] By providing the limiting protrusion 113 on the side of the fixed base 11 and the limiting sliding groove 151 on the connecting sleeve 15 for the limiting protrusion 113 to slide, when the oil cylinder telescopic rod 23 drives the clamping assembly 12 to move, the clamping assembly 12 slides up and down under the limitation of the limiting protrusion 113 and the limiting sliding groove 151, so that the clamping assembly 12 does not rotate circumferentially when moving, thereby preventing the connection stability of the clamping assembly 12 and the intermediate rod 13 from being reduced.

[0056] The preferred embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited thereto. Within the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application, including various specific technical features being combined in any suitable manner. In order to avoid unnecessary repetition, the present application does not further describe various possible combination manners. However, these simple modifications and combinations should also be regarded as disclosed in the present application and belong to the protection scope of the present application.

[0057] In the present application, unless otherwise explicitly specified and limited, the terms “mounting”, “connection”, “connecting”, “fixing” and the like should be understood in a broad sense. For example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection, or communication with each other; it can be direct connection, or indirect connection through an intermediate medium; it can be the communication or interaction relationship between two elements. Unless otherwise explicitly limited, the above terms in the present application can be understood according to the specific meaning in the specific situation by those skilled in the art.

[0058] In the present application, unless otherwise explicitly specified and limited, the first feature is “on” or “under” the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature can be directly above or obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature can be directly below or obliquely below the second feature, or only means that the horizontal height of the first feature is lower than that of the second feature.

[0059] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that changes, modifications, substitutions and variations can be made by those skilled in the art without departing from the scope of the present application.

Claims

1. A cylinder connection device for opening a ladle hatch, characterized in that The oil cylinder connecting device comprises a fixed base, a clamping assembly and an intermediate rod, one side of the fixed base is fixedly connected with the clamping assembly, the other side of the fixed base is fixedly connected with an oil cylinder telescopic rod, one end of the intermediate rod is connected with a connecting rod on a ladle hatch, and the other end is provided with a boss for clamping of the clamping assembly. The clamping assembly comprises a connecting base and two clamping jaws, the fixed base is fixedly connected with the connecting base, and the two clamping jaws are symmetrically and rotatably connected to the connecting base, and the clamping ends of the two clamping jaws are provided with grooves for clamping the boss. The clamping assembly further comprises a positioning pin, a first connecting hole is formed in the clamping jaw, a second connecting hole is formed in the connecting base and is aligned with the connecting hole, and the positioning pin passes through the first connecting hole and the second connecting hole to enable the clamping jaw to rotate relative to the connecting base; the clamping assembly comprises an elastic member, two ends of the elastic member are respectively abutted on the two clamping jaws, and the clamping ends of the two clamping jaws are close to each other. The clamping ends of the two clamping jaws are provided with inclined first guide surfaces, and the two clamping jaws are away from each other when the first guide surfaces are in contact with the boss. And / or the end surface of the boss is provided with an inclined second guide surface, and the clamping ends of the two clamping jaws are away from each other when in contact with the second guide surface on the boss.

2. The ram connection apparatus of claim 1, wherein: The clamping assembly further comprises a driving motor arranged in the connecting base, and the driving motor is connected with the two clamping jaws through a gear set to drive the two clamping jaws to move simultaneously and oppositely. The connecting base is further provided with a distance sensor connected with the driving motor, and the distance sensor triggers the driving motor to drive the two clamping jaws to move by detecting the distance between the boss and the clamping jaw.

3. The ram connection apparatus of claim 1, wherein: One end of the intermediate rod connected with the connecting rod is provided with a T-shaped table, and the T-shaped table is insertedly connected with the original T-shaped groove on the connecting rod.

4. The ram connection apparatus of claim 3, wherein: An abutting table is arranged at the middle position of the intermediate rod, and the oil cylinder connecting device further comprises an abutting block, an abutting groove with a size matching that of the abutting table is arranged in the abutting block, and when the abutting block is clamped on the intermediate rod, the abutting groove is abutted on the abutting table, and the outer surface of the abutting block is abutted on the end surface of the connecting rod.

5. The ram connection apparatus of claim 1, wherein: The fixed base comprises a connecting plate and a fixed plug plate, a stud for screwing with the oil cylinder telescopic rod is arranged on the fixed plug plate, one side of the connecting plate is attached to the connecting base and connected to the connecting base by screws, and the side of the connecting plate attached to the connecting base is provided with an accommodating groove for accommodating the fixed plug plate, and the other side of the connecting plate is attached to the oil cylinder telescopic rod and connected to the oil cylinder telescopic rod by the stud.

6. The ram connection apparatus of any one of claims 1-5, wherein: The oil cylinder connecting device further comprises a connecting sleeve, one end of the connecting sleeve is fixedly connected to the oil cylinder body, the other end is provided with an inserted table connected with the oil cylinder base, and the inside of the connecting sleeve is provided with an accommodating space for accommodating the clamping assembly.

7. The ram connection apparatus of claim 6, wherein: The side of the fixed base is provided with a limiting protrusion, and the connecting sleeve is provided with a limiting sliding groove which is in alignment with the limiting protrusion to allow the limiting protrusion to slide when the oil cylinder telescopic rod moves.

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