CN219262850U - Oil cylinder connecting device for opening steel ladle cabin door - Google Patents

Abstract

The utility model belongs to the technical field of ferrous metallurgical equipment, and discloses an oil cylinder connecting device for opening a steel ladle cabin door, which comprises a fixed base, a clamping assembly and a middle rod, wherein one surface of the fixed base is fixedly connected with the clamping assembly, the other surface of the fixed base is fixedly connected with an oil cylinder telescopic rod, one end of the middle rod is connected with a connecting rod on the steel ladle cabin door, and the other end of the middle rod is provided with a boss for clamping by the clamping assembly.

Description

Oil cylinder connecting device for opening steel ladle cabin door

Technical Field

The utility model relates to the technical field of ferrous metallurgical equipment, in particular to an oil cylinder connecting device for opening a steel ladle cabin door.

Background

In ladle hot repair operation, when the robot clamps the oil cylinder to the oil cylinder base on the ladle mechanism (as shown in fig. 1), the flange on the oil cylinder body is required to be inserted into the limit groove on the oil cylinder base, and the T-shaped block on the oil cylinder telescopic rod is required to be inserted into the T-shaped groove on the connecting rod.

Disclosure of Invention

The utility model provides an oil cylinder connecting device for opening a steel ladle cabin door, which aims to solve the problem that an oil cylinder telescopic rod is difficult to connect with a connecting rod when an oil cylinder is inserted into an oil cylinder base.

The utility model provides an oil cylinder connecting device for opening a steel ladle cabin door, which comprises a fixed base, a clamping assembly and a middle rod, wherein one surface of the fixed base is fixedly connected with the clamping assembly, the other surface of the fixed base is fixedly connected with an oil cylinder telescopic rod, one end of the middle rod is connected with a connecting rod on the steel ladle cabin door, and the other end of the middle rod is provided with a boss for clamping by the clamping assembly.

In the embodiment of the utility model, the clamping assembly comprises a connecting base and two clamping jaws, wherein the fixed base is fixedly connected with the connecting base, the two clamping jaws are mutually symmetrically and rotatably connected to the connecting base, and the clamping ends of the two clamping jaws are provided with grooves clamped with the boss.

In the embodiment of the utility model, the clamping assembly further comprises a positioning pin, a first connecting hole is formed in the clamping jaw, a second connecting hole aligned with the connecting hole is formed in the connecting base, and the positioning pin penetrates 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 piece, two ends of the elastic piece are respectively propped against the two clamping jaws, and the clamping ends of the two clamping jaws are mutually close.

In the embodiment of the utility model, the clamping ends of the two clamping jaws are provided with inclined first guide surfaces, and the two clamping jaws are mutually far away when the first guide surfaces are contacted with the boss; and/or the end face of the boss is provided with an inclined second guide surface, and the clamping ends of the two clamping jaws are far away from each other when contacting the second guide surface on the boss.

In the embodiment of the utility model, 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 relatively at the same time; the connecting base is also 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 through detecting the distance between the boss and the clamping jaws.

In the embodiment of the utility model, one end of the middle rod connected with the connecting rod is provided with a T-shaped table, and the T-shaped table is connected with the original T-shaped groove on the connecting rod in a plugging manner.

In the embodiment of the utility model, the middle position of the middle rod is provided with the supporting table, the oil cylinder connecting device further comprises the supporting block, the supporting block is internally provided with the supporting groove which is matched with the supporting table in size, when the supporting block is clamped on the middle rod, the supporting groove is supported on the supporting table, and the outer surface of the supporting block is supported on the end surface of the connecting rod.

In the embodiment of the utility model, the fixed base comprises a connecting plate and a fixed plugboard, a stud which is in threaded connection with the telescopic rod of the oil cylinder is arranged on the fixed plugboard, one surface of the connecting plate is attached to the connecting base and is connected to the connecting base through a screw, an accommodating groove for accommodating the fixed plugboard is formed in the surface of the connecting plate attached to the connecting base, and the other surface of the connecting plate is attached to the telescopic rod of the oil cylinder and is connected to the telescopic rod of the oil cylinder through the stud.

In the embodiment of the utility model, 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 a plugging table connected with the oil cylinder base, and an accommodating space for accommodating the clamping assembly is arranged inside the connecting sleeve.

In the embodiment of the utility model, the side surface of the fixed base is provided with the limit lug, and the connecting sleeve is provided with the limit chute aligned with the limit lug so as to enable the limit lug to slide when the telescopic rod of the oil cylinder moves.

Compared with the prior art, the utility model has the beneficial effects that:

through the technical scheme, the position of the oil cylinder telescopic rod can be not required to be adjusted when the oil cylinder is arranged on the oil cylinder base, the middle rod is connected to the connecting rod, after the oil cylinder is arranged on the oil cylinder base, the oil cylinder telescopic rod is controlled to extend out and drive the clamping assembly to move in the direction of the middle rod together, so that the clamping assembly can be clamped on the middle rod, the oil cylinder telescopic rod is indirectly connected with the connecting rod through the clamping assembly and the middle rod, the connection efficiency and accuracy of the oil cylinder telescopic rod and the connecting rod are improved, and the subsequent operation of opening a steel ladle cabin door is facilitated.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model, without limitation to the embodiments, wherein:

FIG. 1 is a schematic side perspective view of a prior art cylinder connection and ladle mechanism;

FIG. 2 is a schematic side perspective view of an embodiment of the present utility model in which the cylinder connecting device is applied to a cylinder and ladle mechanism;

FIG. 3 is a schematic perspective view of an embodiment of a cylinder connecting device applied to a cylinder according to the present utility model;

FIG. 4 is a schematic diagram of an exploded view of a part of the cylinder connecting device and the cylinder according to an embodiment of the present utility model;

FIG. 5 is a schematic view of an exploded view of a part of the cylinder connecting device and a connecting rod according to an embodiment of the present utility model;

fig. 6 is a schematic view of an exploded structure of a fixing base and a clamping assembly in the cylinder connecting apparatus according to an embodiment of the present utility model.

Description of the reference numerals

1. An oil cylinder connecting device; 11. a fixed base; 12. a clamping assembly; 13. an intermediate lever; 14. a holding block; 15. connecting sleeves; 111. a connecting plate; 112. fixing the plugboard; 113. a limit bump; 121. the base is connected; 122. a clamping jaw; 123. a positioning pin; 124. an elastic member; 131. a boss; 132. a T-shaped table; 133. a supporting table; 151. limiting sliding grooves; 152. a plugging table; 1111. a receiving groove; 1112. a limiting ring; 1121. a stud; 1211. a second connection hole; 1221. a groove; 1222. a first connection hole; 1223. a first guide surface; 1311. a second guide surface; 21. a ladle cabin door; 22. an oil cylinder body; 23. an oil cylinder telescopic rod; 24. an oil cylinder base; 25. a connecting rod; 221. a flange; 231. a T-shaped block; 241. a limit groove; 251. t-shaped groove.

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

The oil cylinder connecting device for opening the steel ladle cabin door can be used for connecting an oil cylinder when the steel ladle cabin door is opened, and can be conveniently and quickly connected with a connecting rod in the steel ladle cabin door through the oil cylinder connecting device after the oil cylinder is inserted into the oil cylinder base, so that the connection accuracy of the oil cylinder and the connecting rod and the steel ladle cabin door opening efficiency are improved.

As shown in fig. 1, in the prior art, an oil cylinder base 24 is fixed on a ladle mechanism, a ladle door 21 is slidably connected with the ladle mechanism, and when the ladle door 21 slides to an upper limit position along the ladle mechanism, the ladle door 21 is in a locking state, and when the ladle door 21 slides to a lower limit position along the ladle mechanism, the ladle door 21 is in an active state, and at the moment, pulling the ladle door 21 can rotate the ladle door 21 relative to the ladle mechanism, so that the operation of opening the ladle door 21 is completed, and subsequent operations of replacing a drain port, replacing a slide plate, burning a water port and the like can be conveniently performed by workers.

The concrete mode of driving the ladle hatch door 21 to slide along the ladle mechanism is that a limit groove 241 is formed in the oil cylinder base 24, a connecting rod 25 provided with a T-shaped groove 251 is connected to the ladle hatch door 21, a flange 221 on the oil cylinder body 22 is inserted into the limit groove 241, a T-shaped block 231 on the oil cylinder telescopic rod 23 is inserted into the T-shaped groove 251, connection of the oil cylinder and the ladle hatch door 21 is completed, and the effect that the ladle hatch door 21 slides along the ladle mechanism can be achieved by controlling the oil cylinder telescopic rod 23 to stretch and retract. However, when the oil cylinder is mounted on the oil cylinder base 24, it is difficult to ensure the plugging of the T-shaped block 231 and the T-shaped groove 251 at the same time, and the position of the oil cylinder telescopic rod 23 needs to be adjusted multiple times to plug the T-shaped block 231 and the T-shaped groove 251, so that the connection accuracy of the oil cylinder and the connecting rod 25 is too low.

As shown in fig. 2-5, the present utility model provides an oil cylinder connecting device 1 for solving the problems existing in the prior art, the device comprises a fixed base 11, a clamping assembly 12 and an intermediate rod 13, one surface of the fixed base 11 is fixedly connected with the clamping assembly 12, the other surface of the fixed base 11 is fixedly connected with an oil cylinder telescopic rod 23, one end of the intermediate rod 13 is connected with a connecting rod 25 on a ladle door 21, and the other end is provided with a boss 131 for clamping by the clamping assembly 12.

The clamping assembly 12 is connected to the oil cylinder telescopic cylinder through the fixing base 11, one end of the middle rod 13 is connected to the connecting rod 25, a boss 131 for clamping the clamping assembly 12 is arranged at the other end of the middle rod 13, so that when the ladle door 21 needs to be pushed to slide along the ladle mechanism, the oil cylinder telescopic rod 23 is retracted to insert a flange 221 on the oil cylinder body 22 into the limit groove 241, then the oil cylinder telescopic rod 23 is controlled to extend, the oil cylinder telescopic rod 23 drives the clamping assembly 12 to move towards the middle 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, finally, the oil cylinder telescopic rod 23 is controlled to extend continuously, the ladle door 21 can be pushed to the active state, 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.

According to the technical scheme, the oil cylinder is firstly arranged on the oil cylinder base 24, then the oil cylinder is connected with the connecting rod 25 in the steel ladle through the oil cylinder connecting device 1, so that the problem that in the prior art, the connection accuracy is too low due to the fact that the oil cylinder and the connecting rod 25 are connected at the same time is avoided, after the oil cylinder is arranged on the oil cylinder base 24, the oil cylinder connecting device 1 can be connected with the connecting rod 25 by controlling the extending of the oil cylinder telescopic rod 23, connection of the oil cylinder and the connecting rod 25 is facilitated, and the connection accuracy of the oil cylinder and the connecting rod 25 and the efficiency of opening the steel ladle cabin door 21 are improved.

In other examples, the connecting rod 25 and the intermediate rod 13 may be made as one piece, and the structure of the connecting rod 25 connected to 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 to the ladle door 21 and can also be clamped by the clamping assembly 12, so that the ladle door 21 can slide along the ladle mechanism under the driving of the oil cylinder, and can be further rotated when the ladle door 21 reaches the active position, so that the connection with the one-piece connecting rod 25 is released.

As shown in fig. 6, in the embodiment of the present utility model, the clamping assembly 12 includes a connection base 121 and two clamping jaws 122, the fixing base 11 is fixedly connected to the connection base 121, the two clamping jaws 122 are rotationally connected to the connection base 121 symmetrically to each other, and the clamping ends of the two clamping jaws 122 are provided with grooves 1221 clamped with the bosses 131.

The two clamping jaws 122 are symmetrically arranged on the fixed base 11 and are rotationally connected with the fixed base 11, so that after the fixed base 11 is fixedly connected with the connecting base 121 and the connecting base 121 is fixedly connected with the cylinder telescopic rod, when the cylinder telescopic rod stretches out relative to the cylinder body, the clamping assembly 12 is driven to move towards the middle rod 13, the two clamping jaws 122 clamp the boss 131, so that the connection between the clamping assembly 12 and the middle rod 13 is completed, then a bolt on the connecting rod 25 is pulled out, the ladle cabin door 21 can slide relative to the ladle mechanism under the driving of the cylinder, and when the ladle cabin door 21 slides to the lower limit position, the ladle cabin door 21 and the connecting rod 25 can be separated from connection by pulling the ladle cabin door 21, so that the operation of opening the ladle cabin door 21 is completed.

Through set up recess 1221 at the clamping end of two clamping jaw 122 to when the cylinder telescopic link drive clamping jaw 122 moves to intermediate lever 13, make clamping jaw 122 outwards rotate when making clamping jaw 122 contact with boss 131 open, and inwards rotate clamping when recess 1221 reaches with boss 131 position, recess 1221 and boss 131 joint, thereby the centre gripping of formation clamping assembly 12 to intermediate lever 13, when the centre gripping of contact clamping assembly 12 to intermediate lever 13 is needed, insert the bolt on connecting rod 25, make connecting rod 25 and hydro-cylinder base 24 keep relatively fixed, and then through the lateral shifting hydro-cylinder, make flange 221 break away from in the spacing groove 241 make clamping jaw 122 with recess 1221 break away from boss 131, more do benefit to the connection and the dismantlement of hydro-cylinder connecting device 1 and connecting rod 25, improve the efficiency of opening ladle hatch 21.

In the embodiment of the present utility model, the clamping assembly 12 further includes a positioning pin 123, the clamping jaw 122 is provided with a first connecting hole 1222, the connecting base 121 is provided with a second connecting hole 1211 aligned with the connecting hole, and the positioning pin 123 passes through the first connecting hole 1222 and the second connecting hole 1211 to rotate the clamping jaw 122 relative to the connecting base 121.

By forming the first connecting hole 1222 on the clamping jaw 122 and forming the second connecting hole 1211 on the connecting base 121, after the first connecting hole 1222 is aligned with the second connecting hole 1211, the positioning pin is inserted into the first connecting hole 1222 and the second connecting hole 1211, so that the clamping jaw 122 can rotate relative to the connecting base 121, so that the clamping assembly 12 can clamp the boss 131.

In other examples, the connection manner of the clamping jaw 122 and the connection base 121 may be a rotation shaft connection manner, a bolt connection manner, or the like.

In the embodiment of the present utility model, the clamping assembly 12 includes an elastic member 124, and two ends of the elastic member 124 respectively abut against the two clamping jaws 122, so that the clamping ends of the two clamping jaws 122 are close to each other.

By providing the elastic member 124 between the two clamping jaws 122, so that the clamping ends of the two clamping jaws 122 are kept close to each other under the action of the elastic member 124, the two clamping jaws 122 are separated from each other and compress the elastic member 124 when contacting the boss 131, and 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 a state of clamping the boss 131 under the action of the elastic member 124, so that the clamping assembly 12 is prevented from being disconnected from the intermediate rod 13. The elastic member 124 may be any one of a spring and a torsion spring.

In the embodiment of the present utility model, the clamping end of the two-piece clamping jaw 122 is provided with an inclined first guiding surface 1223, the two-piece clamping jaw 122 being distanced from each other when the first guiding surface 1223 is 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-piece clamping jaw 122 are away from each other when in contact with the second guide surface 1311 on the boss 131.

By providing the inclined first guide surface 1223 at the clamping end of the two-piece clamping jaw 122 to provide a guiding action for the two-piece clamping jaw 122 when in contact with the boss 131, the two-piece clamping jaw 122 is moved away from each other by the action of the first guide surface 1223 to facilitate the clamping preparation action for the two-piece clamping jaw 122, and by providing the inclined second guide surface 1311 at the end surface of the boss 131 to provide a guiding action for the two-piece clamping jaw 122 when in contact with the boss 131, the two-piece clamping jaw 122 is moved away from each other by the action of the second guide surface 1311 to facilitate the clamping preparation action for the two-piece clamping jaw 122, in the embodiment of the utility model, the first guide surface 1223 is provided on the clamping jaw 122, the second guide surface 1311 is provided on the boss 131, and in other embodiments, the first guide surface 1223 may be omitted, or the second guide surface 1311 may be omitted.

In one variant of the present utility model, the elastic member 124 may be omitted, and the clamping assembly 12 further includes a driving motor disposed in the connecting base 121, where the driving motor is connected to the two clamping jaws 122 through a gear set, and can drive the two clamping jaws 122 to move away from or close to each other under the driving of the driving motor, that is, drive the two clamping jaws 122 to open or clamp, so that before the boss 131 needs to be clamped, the driving motor drives the two clamping jaws 122 to open, and after the groove 1221 is aligned with the boss 131, the driving motor drives the two clamping jaws 122 to clamp, 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 to the driving motor, where the distance sensor is used to detect the distance between the boss 131 and the clamping jaws 122, and is configured to trigger the driving motor to drive the clamping jaws 122 to open when the distance between the clamping jaws 122 and the boss 131 is greater than a set first threshold, and trigger the driving motor to drive the clamping jaws 122 to clamp when the distance between the clamping jaws 122 and the boss 131 is less than a set second threshold, so as to implement the intelligent clamping operation of the clamping assembly 12 on the intermediate rod 13, where the first threshold 122 is located at a position of 5cm to be equal to the boss 131 and the position of the first threshold 122 cm is equal to the position of the boss 1.

In the embodiment of the present utility model, as shown in fig. 5, a T-shaped table 132 is disposed at the end of the intermediate rod 13 connected to the connecting rod 25, and the T-shaped table 132 is in plug connection with an original T-shaped groove 251 on the connecting rod 25.

Through setting up T type platform 132 in the one end of intermediate lever 13 to make intermediate lever 13 pass through T type platform 132 and the T type groove 251 grafting connection on the connecting rod 25, and then can be convenient for centre gripping subassembly 12 be connected and promote ladle hatch door 21 to slide from top to bottom through centre gripping intermediate lever 13 and ladle hatch door 21, through the mode grafting connection of T type platform 132 and T type groove 251, in order to be convenient for intermediate lever 13 and connecting rod 25 be connected and dismantle, make intermediate lever 13's easy dismounting more convenient and fast.

In the embodiment of the present utility model, the middle position of the middle rod 13 is provided with the supporting table 133, the cylinder connecting device 1 further includes the supporting block 14, the supporting block 14 is internally provided with the supporting groove with the size matching with the supporting table 133, when the supporting block 14 clamps on the middle rod 13, the supporting groove is supported on the supporting table 133, and the outer surface of the supporting block 14 is supported on the end surface of the connecting rod 25.

The middle position of the middle rod 13 is provided with the supporting table 133, so that after the middle rod 13 is connected with the connecting rod 25 in an inserting way, the supporting table 133 can be supported by the inner part of the supporting block 14, the outer surface of the supporting block 14 is supported by the end surface of the connecting rod 25, the connection stability between the middle rod 13 and the connecting rod 25 is enhanced, the middle rod 13 is prevented from falling off from the connecting rod 25, namely, the T-shaped table 132 is prevented from falling off from the T-shaped groove 251.

As shown in fig. 6, in the embodiment of the present utility model, the fixing base 11 includes a connection plate 111 and a fixing insert plate 112, a stud 1121 in threaded connection with the cylinder telescopic rod 23 is provided on the fixing insert plate 112, one surface of the connection plate 111 is attached to the connection base 121 and is connected to the connection base 121 through a screw, a receiving groove 1111 for receiving the fixing insert plate 112 is provided on the surface of the connection plate 111 attached to the connection base 121, and the other surface of the connection plate 111 is attached to the cylinder telescopic rod 23 and is connected to the cylinder telescopic rod 23 through the stud 1121.

The fixing plugboard 112 is provided with the stud 1121, the connecting board 111 is provided with the accommodating groove 1111, when the fixing base 11 is installed, the stud 1121 passes through the connecting board 111, the fixing plugboard 112 is accommodated in the accommodating groove 1111, then the connecting board 111 is attached to the connecting base 121 and is screwed by bolts, so that the fixing base 11 and the connecting base 121 are kept relatively fixed, and then the fixing base 11 is connected to the oil cylinder telescopic rod 23 through the stud 1121, so that the fixing base 11, the oil cylinder telescopic rod 23 and the clamping assembly 12 are kept relatively fixed, and the clamping assembly 12 is driven to move through the movement of the oil cylinder telescopic rod 23, and the ladle cabin door 21 is pushed to move up and down.

The oil cylinder telescopic rod 23 and the clamping assembly 12 are connected through the fixing base 11, so that the mechanical structure of the clamping assembly 12 is simpler, the clamping assembly 12 is convenient to produce and manufacture, the containing groove 1111 is formed in the connecting plate 111, the fixing inserting plate 112 is contained in the containing groove 1111, relative rotation between the fixing inserting plate 112 and the connecting plate 111 is prevented, meanwhile, the connecting plate 111 can be guaranteed 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 fixing base 11 and the clamping assembly 12 is improved.

In the embodiment of the utility model, a protruding limiting ring 1112 is arranged on one surface of the connecting plate 111 far away from the accommodating groove 1111, the inner diameter of the limiting ring 1112 is matched with the outer diameter of the oil cylinder telescopic rod 23, and after the stud 1121 is connected with the oil cylinder telescopic rod 23, the end part of the oil cylinder telescopic rod 23 is accommodated in the limiting ring 1112 so as to prevent the oil cylinder telescopic rod 23 and the fixed base 11 from sliding transversely and improve the stability of connection between the two.

In the embodiment of the utility model, 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 body 22, the other end of the connecting sleeve is provided with a plugging platform 152 connected with the oil cylinder base 24, and an accommodating space for accommodating the clamping assembly 12 is arranged inside the connecting sleeve 15.

The connecting sleeve 15 is connected to the cylinder body 22, and the other end is connected with the cylinder base 24 through the plugging table 152, namely, the connecting sleeve 152 is inserted into the limiting groove 241 on the cylinder base 24, so that the cylinder is fixed on the cylinder base 24 under the connection of the connecting sleeve 15, the distance between the cylinder telescopic rod 23 and the middle rod 13 is increased, and the problem that the clamping assembly 12 cannot be connected with the middle rod 13 due to too close distance between the cylinder telescopic rod 23 and the middle rod 13 is avoided. Before the connecting sleeve 15 is inserted into the limiting groove 241, the clamping assembly 12 is accommodated in the accommodating space by controlling the telescopic rod 23 to shrink, and then the inserting table 152 is inserted into the limiting groove 241, so that the distance between the oil cylinder and the middle is increased, and then the clamping assembly 12 can be moved to the middle rod 13 and clamped on the boss 131 under the driving of the telescopic rod 23 by controlling the telescopic rod 23 to extend, so that the steel ladle cabin door 21 can be pushed to slide and be opened. The connecting sleeve 15 is connected with the cylinder rod body through screws, so that the connecting sleeve 15 is conveniently detached from the cylinder body 22 of the cylinder when the cylinder is idle, and the cylinder and the connecting sleeve 15 are conveniently stored and tidied.

In the embodiment of the utility model, the side surface of the fixed base 11 is provided with a limit bump 113, and the connecting sleeve 15 is provided with a limit chute 151 aligned with the limit bump 113 so as to enable the limit bump 113 to slide when the oil cylinder telescopic rod 23 moves.

By arranging the limit lug 113 on the side surface of the fixed base 11 and arranging the limit chute 151 for the limit lug 113 to slide on the connecting sleeve 15, when the oil cylinder telescopic rod 23 drives the clamping assembly 12 to move, the clamping assembly 12 slides up and down under the limit of the limit lug 113 and the limit chute 151, and the clamping assembly 12 is prevented from rotating circumferentially when moving, so that the connection stability of the clamping assembly 12 and the middle rod 13 is reduced.

The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited thereto. Within the scope of the technical idea of the utility model, a plurality of simple variants of the technical proposal of the utility model can be carried out, comprising that each specific technical feature is combined in any suitable way, and in order to avoid unnecessary repetition, the utility model does not need to be additionally described for various possible combinations. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. The oil cylinder connecting device for opening the steel ladle cabin door is characterized by comprising a fixed base, a clamping assembly and a middle rod, wherein one surface of the fixed base is fixedly connected with the clamping assembly, the other surface of the fixed base is fixedly connected with an oil cylinder telescopic rod, one end of the middle rod is connected with a connecting rod on the steel ladle cabin door, and the other end of the middle rod is provided with a boss for clamping the clamping assembly.

2. The cylinder connection device according to claim 1, characterized in that: the clamping assembly comprises a connecting base and two clamping jaws, wherein the fixed base is fixedly connected with the connecting base, the two clamping jaws are mutually symmetrically and rotationally connected to the connecting base, and the clamping ends of the two clamping jaws are provided with grooves clamped with the boss.

3. The cylinder connection device according to claim 2, characterized in that: the clamping assembly further comprises a positioning pin, a first connecting hole is formed in the clamping jaw, a second connecting hole aligned with the connecting hole is formed in the connecting base, and the positioning pin penetrates 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 piece, two ends of the elastic piece are respectively propped against the two clamping jaws, and the clamping ends of the two clamping jaws are mutually close.

4. The cylinder connection device according to claim 2, characterized in that: the clamping ends of the two clamping jaws are provided with inclined first guide surfaces, and the two clamping jaws are mutually far away when the first guide surfaces are contacted with the boss;

and/or the end face of the boss is provided with an inclined second guide surface, and the clamping ends of the two clamping jaws are far away from each other when contacting the second guide surface on the boss.

5. The cylinder connection device according to claim 2, characterized in that: 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 relatively at the same time;

the connecting base is also 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 jaws.

6. The cylinder connection device according to claim 1, characterized in that: the middle rod with the one end that the connecting rod is connected is provided with T type platform, T type platform with original T type groove grafting on the connecting rod is connected.

7. The cylinder connection device according to claim 6, wherein: the middle position of the middle rod is provided with a supporting table, the oil cylinder connecting device further comprises a supporting block, a supporting groove matched with the supporting table in size is formed in the supporting block, when the supporting block is clamped on the middle rod, the supporting groove is supported on the supporting table, and the outer face of the supporting block is supported on the end face of the connecting rod.

8. The cylinder connection device according to claim 2, characterized in that: the fixed base comprises a connecting plate and a fixed plugboard, a stud in threaded connection with the oil cylinder telescopic rod is arranged on the fixed plugboard, one face of the connecting plate is in fit with the connecting base and is connected to the connecting base through a screw, a containing groove for containing the fixed plugboard is formed in the face, which is in fit with the connecting base, of the connecting plate, and the other face of the connecting plate is in fit with the oil cylinder telescopic rod and is connected to the oil cylinder telescopic rod through the stud.

9. The cylinder connection device according to any one of claims 1 to 8, characterized in that: 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 a plugging table connected with the oil cylinder base, and an accommodating space for accommodating the clamping assembly is formed in the connecting sleeve.

10. The cylinder connection device according to claim 9, characterized in that: the side of unable adjustment base is provided with spacing lug, set up on the adapter sleeve with spacing spout of spacing lug counterpoint is in order to supply when the motion of hydro-cylinder telescopic link spacing lug slides.

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