Crane positioning end beam structure for assembling shield tunneling machine

Abstract

The utility model discloses a crane positioning end beam structure for assembling a shield tunneling machine, and relates to the technical field of cranes. The device comprises two pedestals, a plurality of supporting rods and a plurality of supporting rods, the number of the end beams is two, and the two end beams are installed on the tops of the two bases in a sliding mode correspondingly. The adjusting assembly drives the moving position of the sliding frame to be consistent with the moving position of the end beam all the time, it is ensured that the sliding frame can accurately move along with the end beam, after the sliding frame reaches the designated position, the two air cylinders drive the two limiting plates to be close to the end beam, and the two limiting plates are rapidly connected with one end of the end beam in a clamped mode; the end beam is firmly limited on the sliding frame to realize accurate movement and fixation of the end beam, and the end beam is stably locked at a specified position, so that the problem of tiny movement of the main beam caused by inertia or external factors is effectively prevented, the positioning accuracy of the end beam is ensured, the mounting accuracy of a shield tunneling machine component is improved, and the construction cost is reduced. And the assembly quality and the overall performance of the shield tunneling machine are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a crane technical field, concretely relates to a crane positioning end beam structure for shield machine assembly. BACKGROUND

[0002] Crane is widely used in industrial and mining enterprises, and is essential hoisting equipment in production site. Since it is often in the state of overloading, the strength of the main beam of the crane must be high enough to ensure the safety of the equipment and the operating personnel in the operation process, and the positioning end beam of the crane plays a crucial role in the assembly process of the shield machine.

[0003] The traditional crane positioning end beam structure has certain limitations, for example, when the main beam moves, the object lifted may generate inertia or be affected by external things, causing slight forward movement, causing the main beam to move, thereby simultaneously causing the end beam to move, thereby easily causing insufficient positioning accuracy, and once the positioning accuracy is insufficient, the shield machine component installation deviation will affect the assembly quality and overall performance of the entire shield machine, and even may cause safety hazards. SUMMARY

[0004] The utility model discloses a crane positioning end beam structure for shield machine assembly.

[0005] The utility model discloses a crane positioning end beam structure for shield machine assembly, which realizes the above-mentioned purposes and specifically adopts the following technical scheme: a crane positioning end beam structure for shield machine assembly, comprising: a base, the number of which is two; an end beam, the number of which is two, two end beams are respectively slidably installed on the top of two bases, and a main beam is installed between two end beams; a moving assembly, which is installed on the base and is used to drive the end beam left and right; a sliding frame, which is slidably installed on one side of the base, one side of the sliding frame is symmetrically distributed with two limiting plates slidably installed thereon, two limiting plates are clamped with one end of the end beam, and a gas cylinder is fixedly installed at the top and bottom of the sliding frame, the telescopic end of the gas cylinder is fixedly connected with the limiting plate, and an adjusting assembly for driving the sliding frame to move left and right is installed on the base.

[0006] Further, the moving assembly comprises a lead screw rotatably installed between the inner walls of the base, a driving motor for driving the lead screw to rotate is fixedly installed on one side of the base, a sliding block is fixedly installed at the bottom of the end beam, and the sliding block is threadedly connected with the lead screw.

[0007] Further, a plurality of rollers are fixedly installed at the bottom of the end beam, and the rollers rollingly contact the top of the end beam.

[0008] Further, the adjusting assembly comprises a rotating motor fixedly installed on one side of the sliding frame, an adjusting gear is fixedly installed at an output end of the rotating motor, a straight toothed plate is fixedly installed on one side of the base, and the straight toothed plate is engaged with the adjusting gear.

[0009] Further, one side of the end beam is fixedly installed with a mounting plate, an electric push rod is fixedly inserted on the mounting plate, a friction plate is fixedly installed at a telescopic end of the electric push rod, and the bottom of the base is provided with a rough surface, and the friction plate is in contact with the bottom of the base.

[0010] Further, a damping assembly is installed between one end of the main beam and the end beam, and the damping assembly is used for buffering and damping the main beam generating vibration.

[0011] Further, the damping assembly comprises a positioning cylinder fixedly installed on the top of the end beam, a plug rod is fixedly installed at the bottom of the main beam, the plug rod is slidably inserted into the positioning cylinder, a damping spring is fixedly installed between the bottom of the plug rod and the bottom of the inner wall of the positioning cylinder, and a damper is fixedly installed between the bottom of the plug rod and the bottom of the inner wall of the positioning cylinder.

[0012] Further, the end beam is made of high-strength alloy steel material, and a rust-proof coating is arranged on the surface of the end beam.

[0013] The utility model discloses the beneficial effects are as follows:

[0014] The utility model discloses the moving position of the sliding frame and the moving position of the end beam are kept consistent by the adjusting assembly, the sliding frame can accurately follow the movement of the end beam, after reaching the specified position, two limit plates are driven to the end beam by two air cylinders, and the end beam is fixedly limited on the sliding frame to realize the accurate movement and the fixation of the end beam, the end beam is stably locked in the specified position, thereby effectively prevent the problem that the main beam generates slight movement due to inertia or external factors, ensure the positioning accuracy of the end beam, improve the installation accuracy of the shield machine assembly, and ensure the assembly quality and overall performance of the shield machine. ACCURATE MOVEMENT AND FIXATION OF END BEAM

[0015] Figure 1 It is the utility model three-dimensional structure diagram;

[0016] Figure 2 It is the utility model Figure 1 Three-dimensional structure section view;

[0017] Figure 3 It is the utility model Figure 1 Still another three-dimensional structure section view;

[0018] Figure 4 It is the utility model still another three-dimensional structure diagram.

[0019] Fig. 1 is a base; 2, end beam; 3, main beam; 4, moving assembly; 41, lead screw; 42, drive motor; 43, sliding block; 5, sliding frame; 6, limit plate; 7, air cylinder; 8, adjusting assembly; 81, rotating motor; 82, adjusting gear; 83, straight toothed plate; 9, damping assembly; 91, positioning cylinder; 92, insertion rod; 93, damping spring; 94, damper; 10, roller; 11, mounting plate; 12, electric push rod; 13, friction plate. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment.

[0021] As Figures 1-4 shown, an embodiment of the utility model provides a positioning end beam structure of a crane for shield machine assembly, which comprises: a base 1, the number of which is two;

[0022] end beams 2, the number of which is two, which are respectively slidably installed on the top of the two bases 1, and a main beam 3 is installed between the two end beams 2;

[0023] a moving assembly 4, which is installed on the base 1 and is used to drive the end beams 2 to move left and right;

[0024] a sliding frame 5, which is slidably installed on one side of the base 1, one side of the sliding frame 5 is symmetrically distributed with two limit plates 6 slidably installed on it, the two limit plates 6 are clamped with one end of the end beam 2, and an air cylinder 7 is fixedly installed on the top end and the bottom end of the sliding frame 5, the telescopic end of the air cylinder 7 is fixedly connected with the limit plate 6, and an adjusting assembly 8 for driving the sliding frame 5 to move left and right is installed on the base 1. The adjusting assembly 8 comprises a rotating motor 81 fixedly installed on one side of the sliding frame 5, an adjusting gear 82 fixedly installed on the output end of the rotating motor 81, a straight toothed plate 83 fixedly installed on one side of the base 1, and the straight toothed plate 83 is engaged with the adjusting gear 82.

[0025] When the shield machine assembly needs to be hoisted, first, the moving assembly 4 of the crane is started. The moving assembly 4 drives the end beam 2 to move left and right on the top of the base 1. With the movement of the end beam 2, the main beam 3 also moves to the required position. In the process of movement of the end beam 2, due to the connection relationship between the end beam 2 and the main beam 3, the main beam 3 may be slightly tilted and moved due to inertia or external factors, which synchronously drives the end beam 2 to move, thereby affecting the positioning accuracy.

[0026] To ensure the positioning accuracy, the adjusting assembly 8, the sliding frame 5, the air cylinder 7 and the limiting plate 6 play a key role. The rotating motor 81 in the adjusting assembly 8 is started while the end beam 2 moves, and since the adjusting gear 82 at the output end of the rotating motor 81 is engaged with the straight toothed plate 83 on one side of the base 1, the adjusting gear 82 moves along the straight toothed plate 83 as the rotating motor 81 rotates, thereby driving the sliding frame 5 to move synchronously on one side of the base 1. The moving position of the sliding frame 5 is always consistent with the moving position of the end beam 2, ensuring that the sliding frame 5 can accurately follow the movement of the end beam 2.

[0027] When the end beam 2 moves to the specified position, the sliding frame 5 also synchronously reaches the corresponding position. At this time, the two air cylinders 7 at the top and bottom of the sliding frame 5 start to work, and the telescopic end of the air cylinder 7 extends, driving the two limiting plates 6 symmetrically distributed on one side of the sliding frame 5 to move towards the end beam 2, and the two limiting plates 6 are quickly clamped with one end of the end beam 2, firmly limiting the end beam 2 on the sliding frame 5. Through this fixing mode, the end beam 2 is stably locked at the specified position, effectively preventing the slight movement of the main beam 3 due to inertia or external factors, and ensuring the positioning accuracy of the end beam 2.

[0028] During the entire working process, the coordinated cooperation between the moving assembly 4, the adjusting assembly 8, and the air cylinder 7 and the limiting plate 6 realizes the accurate movement and fixation of the end beam 2, effectively solves the problem of positioning deviation of the main beam 3 due to movement in the traditional positioning end beam structure of the crane, improves the installation accuracy of the shield machine assembly, ensures the assembly quality and overall performance of the shield machine, and avoids potential safety hazards caused by positioning deviation.

[0029] As shown in Figure 3 In some embodiments, the moving assembly 4 includes a lead screw 41 rotatably installed between the inner walls of the base 1, a drive motor 42 is fixedly installed on one side of the base 1 for driving the lead screw 41 to rotate, a sliding block 43 is fixedly installed at the bottom of the end beam 2, and the sliding block 43 is threadedly connected with the lead screw 41.

[0030] The drive motor 42 fixedly installed on one side of the base 1 is started. The output end of the drive motor 42 drives the lead screw 41 to rotate between the inner walls of the base 1. Since the sliding block 43 fixedly installed at the bottom of the end beam 2 is threadedly connected with the lead screw 41, the rotation of the lead screw 41 drives the sliding block 43 to move left and right along the top of the base 1, thereby driving the end beam 2 to move. With the movement of the end beam 2, the main beam 3 also moves to the desired position. During the entire working process, the drive motor 42 drives the lead screw 41 to rotate, and the accurate movement of the end beam 2 is realized through the thread connection of the sliding block 43, further improving the accurate positioning of the end beam 2 and the main beam 3.

[0031] As shown in Figure 3As shown, in some embodiments, a plurality of rollers 10 are fixedly mounted on the bottom of the end beam 2, and the rollers 10 roll in contact with the top of the end beam 2. The rollers 10 improve the flexibility of movement of the end beam 2.

[0032] like Figure 4 As shown, in some embodiments, an mounting plate 11 is fixedly installed on one side of the end beam 2, an electric push rod 12 is fixedly inserted on the mounting plate 11, a friction plate 13 is fixedly installed on the telescopic end of the electric push rod 12, the bottom of the base 1 is set as a rough surface, and the friction plate 13 is in contact with the bottom of the base 1.

[0033] During the movement of end beam 2, the electric push rod 12 on the mounting plate 11 fixedly installed on one side is in its initial state, and the friction plate 13 remains in contact with the rough surface of the bottom of the base 1 without applying additional braking force. When end beam 2 moves to the designated position, the electric push rod 12 is activated, and its telescopic end pushes the friction plate 13 to press tightly against the rough surface of the bottom of the base 1. The friction force initially fixes end beam 2 in the horizontal direction, preventing accidental movement of end beam 2 due to inertia or other external forces.

[0034] like Figure 2 As shown, in some embodiments, a damping assembly 9 is installed between one end of the main beam 3 and the end beam 2, which is used to buffer and dampen the vibration of the main beam 3. The damping assembly 9 includes a positioning cylinder 91 fixedly installed on the top of the end beam 2, an insert rod 92 fixedly installed on the bottom of the main beam 3, the insert rod 92 being slidably inserted into the positioning cylinder 91, a damping spring 93 fixedly installed between the bottom of the insert rod 92 and the bottom of the inner wall of the positioning cylinder 91, and a damper 94 fixedly installed between the bottom of the insert rod 92 and the bottom of the inner wall of the positioning cylinder 91.

[0035] During the movement and positioning of the main beam 3 and end beam 2, the main beam 3 may vibrate due to the hoisting of heavy objects or external interference. To effectively buffer and reduce vibration, a damping component 9 is installed between the main beam 3 and the end beam 2. A rod 92 fixedly installed at the bottom of the main beam 3 is slidably inserted into the positioning cylinder 91 at the top of the end beam 2. When the main beam 3 vibrates, the rod 92 slides up and down within the positioning cylinder 91. At this time, the damping spring 93 fixedly installed between the bottom of the rod 92 and the bottom of the inner wall of the positioning cylinder 91 absorbs some of the vibration energy through elastic deformation, playing a preliminary buffering role. At the same time, the damper 94 also generates damping force when the rod 92 slides, further consuming vibration energy, thereby effectively reducing the vibration amplitude of the main beam 3, ensuring the stability of the main beam 3 during hoisting and positioning, and further improving positioning accuracy.

[0036] like Figure 1As shown, in some embodiments, the end beam 2 is made of high-strength alloy steel material, and the surface is provided with a rust-proof coating.

[0037] The end beam 2 is made of high-strength alloy steel material, has excellent mechanical properties, can bear larger load and stress, ensures the structural strength and stability of the end beam 2 when hoisting heavy objects, at the same time, the surface of the end beam 2 is provided with a rust-proof coating, which can effectively prevent the steel from rusting and corroding in harsh environment, prolong the service life of the end beam 2, reduce the maintenance cost, and improve the reliability and durability of the whole crane positioning end beam structure.

[0038] The above description of disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A crane positioning end beam structure for assembly of a tunneling machine, characterized in that, Include: Base (1), the number is two; End beam (2), the number is two, two said end beam (2) is respectively installed on the top of two said base (1), two said end beam (2) is installed between main beam (3); Moving assembly (4), said moving assembly (4) is installed on said base (1), it is used for driving left and right of said end beam (2); Slide frame (5), said slide frame (5) is slidably installed on one side of said base (1), one side of said slide frame (5) is symmetrically distributed with two limit plates (6) on the top and bottom, two said limit plates (6) are connected with one end of said end beam (2), the top and bottom of said slide frame (5) are fixedly installed with pneumatic cylinder (7), the telescopic end of said pneumatic cylinder (7) is fixedly connected with said limit plate (6), said base (1) is installed with adjusting assembly (8) for driving left and right movement of said slide frame (5).

2. A positioning end beam structure for a shield tunneling machine assembly crane according to claim 1, characterized in that, Said moving assembly (4) includes screw rod (41) that is rotatably installed between the inner wall of said base (1) two sides, one side of said base (1) is fixedly installed with drive motor (42) for driving rotation of said screw rod (41), the bottom of said end beam (2) is fixedly installed with sliding block (43), said sliding block (43) is threadedly connected with said screw rod (41).

3. A positioning end beam structure for a shield tunneling machine assembly crane according to claim 1, characterized in that, The bottom of said end beam (2) is fixedly installed with a plurality of rollers (10), said roller (10) is rolling contact on the top of said end beam (2).

4. A positioning end beam structure for a shield tunneling machine assembly crane according to claim 1, characterized in that, Said adjusting assembly (8) includes rotating motor (81) fixedly installed on one side of said slide frame (5), the output end of said rotating motor (81) is fixedly installed with adjusting gear (82), one side of said base (1) is fixedly installed with straight toothed plate (83), said straight toothed plate (83) is engaged with said adjusting gear (82).

5. A positioning end beam structure for a shield tunneling machine assembly crane according to claim 1, characterized in that, One side of said end beam (2) is fixedly installed with mounting plate (11), said mounting plate (11) is fixedly inserted with electric push rod (12), the telescopic end of said electric push rod (12) is fixedly installed with friction plate (13), the bottom of said base (1) is set as rough surface, said friction plate (13) is in contact with the bottom of said base (1).

6. A positioning end beam structure for a shield tunneling machine assembly crane according to claim 1, characterized in that, One end of said main beam (3) and said end beam (2) is installed with damping assembly (9), which is used for buffering and damping the vibration of said main beam (3).

7. A positioning end beam structure for a jumbo assembly of a shield tunneling machine according to claim 6, characterized in that, Said damping assembly (9) includes positioning cylinder (91) fixedly installed on the top of said end beam (2), the bottom of said main beam (3) is fixedly installed with inserting rod (92), said inserting rod (92) is slidably inserted into said positioning cylinder (91), said inserting rod (92) is fixedly installed with damping spring (93) between the bottom and the inner wall of said positioning cylinder (91), said inserting rod (92) is fixedly installed with damper (94) between the bottom and the inner wall of said positioning cylinder (91).

8. A positioning end beam structure for a shield tunneling machine assembly crane according to claim 1, characterized in that, Said end beam (2) is made of high-strength alloy steel material, and a rust-proof coating is provided on the surface thereof.

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