A large-span rigid suspension multi-point crane

Abstract

The invention discloses a large-span rigid suspension multi-support crane, comprising: a truss main beam, a rail trolley is arranged on the truss main beam, a plurality of load-bearing beams, the plurality of load-bearing beams are arranged above the truss main beam, the plurality of load-bearing beams are connected with rails through hanging parts, the rail trolley is slidably connected to the rails, a plurality of reinforcing beams are arranged on the truss main beam and are respectively located between two adjacent load-bearing beams, a main beam trolley, the main beam trolley is slidably connected to the truss main beam, and a control system is electrically connected to the rail trolley and the main beam trolley, and the control system centrally controls the movement of the main beam trolley and the rail trolley. The crane utilizes the structural advantages of the truss structure, does not change the mechanical properties, and can also save costs. The rail trolley is used to increase the width of the crane main beam, increase the operating space of the lifting mechanism within the width range, and increase the safety of use.

Description

Technical Field

[0001] The invention belongs to the technical field of large-span cranes, and more specifically, relates to a large-span rigid suspension multi-support point crane. Background Art

[0002] According to the layout design of automobile manufacturing workshop and the requirements of process flow route, a large-span rigid suspension multi-point crane is designed on the basis of meeting the bearing capacity of the workshop steel structure. Due to the large span (length 13.5m, load 2000Kg), ordinary KBK rails, tool rails and aluminum alloy rails cannot meet the load requirements. Summary of the invention

[0003] The purpose of the present invention is to provide a large-span rigid suspension multi-point crane in view of the deficiencies in the prior art. The crane utilizes the structural advantages of the truss structure, does not change the mechanical properties, and can save costs. The width of the crane main beam is increased through the rail trolley, the operating space of the lifting mechanism within the width range is increased, and the safety of use is increased.

[0004] In order to achieve the above object, the present invention provides a large-span rigid suspension multi-support crane, comprising:

[0005] A truss main beam, on which a rail trolley is arranged;

[0006] A plurality of load-bearing beams, wherein the plurality of load-bearing beams are arranged above the truss main beams, and the plurality of load-bearing beams are connected with profile rails through hanging pieces, and the profile rail trolley is slidably connected to the profile rails;

[0007] A plurality of reinforcing beams, which are arranged on the truss main beam and are respectively located between two adjacent load-bearing beams;

[0008] A main beam trolley, the main beam trolley is slidably connected to the truss main beam;

[0009] A control system is electrically connected to the rail trolley and the main beam trolley, and the control system centrally controls the movements of the main beam trolley and the rail trolley.

[0010] Optionally, it also includes an electric hoist and an external C-rail cable, the electric hoist is arranged at the lower end of the main beam trolley, and the two ends of the external C-rail cable are respectively connected to the main beam trolley and the control system.

[0011] Optionally, limit brackets are provided at both ends of the truss main beam.

[0012] Optionally, a connecting rod is further included, and two ends of the connecting rod are respectively connected to the mutually close ends of adjacent reinforcing beams.

[0013] Optionally, the hanger includes a long hanger and a short hanger, the long hanger is connected to both ends of the truss main beam, and the short hanger is connected to the connecting rod.

[0014] Optionally, the reinforcing beam includes a cross beam and a plurality of vertical beams, one end of the plurality of vertical beams is connected to the truss main beam, and the other end of the plurality of vertical beams is connected to the cross beam.

[0015] Optionally, the control system includes a PLC module and a vector encoder, and the PLC module synchronously controls the movement of the rail trolley through the vector encoder to make the truss main beam move in parallel.

[0016] Optionally, the profile rail includes a center plate, a first track and a second track, one end of the center plate is connected to the hanger, the first track and the second track are symmetrically arranged at the other end of the center plate, and the profile rail trolley is slidably connected between the first track and the second track.

[0017] Optionally, the first track and the second track have the same structure, including a connecting portion and a limiting portion, the limiting portion is C-shaped, a sliding cavity structure is formed between the two limiting portions, and the rail trolley is slidably connected in the sliding cavity structure.

[0018] Optionally, the control system is located below the main beam trolley, a connecting line is provided at one end of the control system, and one end of the connecting line is connected to the main beam trolley.

[0019] The present invention provides a large-span rigid suspension multi-support crane, which has the following beneficial effects:

[0020] 1. This crane takes advantage of the structural advantages of the truss structure, which does not change the mechanical properties while saving costs. The rail trolley increases the width of the crane main beam, increases the operating space of the lifting mechanism within the width range, and increases safety in use.

[0021] 2. The combination of long and short hangers can adapt to more on-site use environments.

[0022] 3. Through the design of mechatronics, the application function of the PLC electrical control system is fully utilized, and the digital operating system and the operating specifications of the rigid truss stacker are advantageously combined to ensure the synchronization and stability of the truss movement.

[0023] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present invention.

[0025] Figure 1 A structural schematic diagram of a large-span rigid suspension multi-support crane according to an embodiment of the present invention is shown.

[0026] Figure 2 A large-span rigid suspension multi-support crane according to an embodiment of the present invention is shown. Figure 1 Enlarged view of point A.

[0027] Figure 3 A large-span rigid suspension multi-support crane according to an embodiment of the present invention is shown. Figure 1 Enlarged view of point B.

[0028] Description of reference numerals:

[0029] 1. Load-bearing beam; 2. Hanging parts; 3. Profiled rail; 4. Truss main beam; 5. Profiled rail trolley; 6. Main beam trolley; 7. Electric hoist; 8. External C-rail cable; 9. Control system; 10. Limit bracket. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0031] Figure 1 A schematic structural diagram of a large-span rigid suspension multi-support crane according to an embodiment of the present invention is shown; Figure 2 A large-span rigid suspension multi-support crane according to an embodiment of the present invention is shown. Figure 1 A magnified image of point A; Figure 3 A large-span rigid suspension multi-support crane according to an embodiment of the present invention is shown. Figure 1 Enlarged view of point B.

[0032] like Figure 1-3 As shown, a large-span rigid suspension multi-support crane comprises:

[0033] A truss main beam 4, on which a rail trolley 5 is arranged;

[0034] A plurality of load-bearing beams 1 are arranged above the truss main beam 4, one side of the plurality of load-bearing beams 1 is respectively connected with a profiled rail 3 through a hanger 2, and a profiled rail trolley is slidably connected to the profiled rail 3;

[0035] A plurality of reinforcing beams, which are arranged on the truss main beam 4 and respectively located between two adjacent load-bearing beams 1;

[0036] The main beam trolley 6 is slidably connected to the truss main beam 4;

[0037] The control system 9 is electrically connected to the rail trolley 5 and the main beam trolley 6 , and the control system 9 centrally controls the movement of the main beam trolley 6 and the rail trolley 5 .

[0038] Specifically, the stability and bearing capacity of the truss main beam 4 are improved by strengthening the beam, and the load-bearing beam 1, the hanger 2, and the truss main beam 4 form a spatial truss structure to complete a large span and long distance working range while ensuring the support stability. The control system 9 coordinates the synchronous movement of the rail trolley 5, and the normal operation of the large span crane structure is guaranteed by the main beam trolley 6, the rail trolley 5 and the control system 9.

[0039] Furthermore, the distance between the two ends of the truss main beam 4 is 13.5m, and it can bear 2000Kg. It is a closed track structure, and the rollers of the main beam trolley 6 are slidably connected to the inside of the closed track structure.

[0040] In this embodiment, an electric hoist 7 and an external C-rail cable 8 are also included. The electric hoist 7 is arranged at the lower end of the main beam trolley 6, and both ends of the external C-rail cable 8 are respectively connected to the main beam trolley 6 and the control system 9.

[0041] Specifically, objects are lifted and lowered by an electric hoist 7 , and power is transmitted by an external C-rail cable 8 .

[0042] In this embodiment, the ends of the truss main beams 4 that are far away from each other are provided with limiting brackets 10 .

[0043] Specifically, the working range is limited by the limiting bracket 10 to prevent the main beam trolley 6 from being too close to the two ends.

[0044] In this embodiment, a connecting rod is further included, and two ends of the connecting rod are respectively connected to the mutually close ends of adjacent reinforcing beams.

[0045] Specifically, adjacent reinforcing beams are connected by connecting rods to ensure the stability of the connection of the truss main beam 4 and the sliding stability of the main beam trolley 6.

[0046] In this embodiment, the hanger 2 includes a long hanger and a short hanger, the long hanger is respectively connected to both ends of the truss main beam 4, and the short hanger is connected to the connecting rod.

[0047] Specifically, the thickness difference of the connecting rod is compensated by the long hanger and the short hanger, so that the lower end of the truss main beam 4 is horizontally flush.

[0048] Furthermore, the horizontality of the space is achieved by combining the long hanging pieces and the short hanging pieces, and the horizontality during the movement is achieved by utilizing the long wheelbase of the rail trolley 5 .

[0049] In this embodiment, the reinforcing beam includes a cross beam and a plurality of vertical beams, one end of the plurality of vertical beams is connected to the truss main beam, and the other end of the plurality of vertical beams is connected to the cross beam.

[0050] Specifically, the stability and supporting strength of the truss main beam are improved by strengthening the beam and reducing deformation.

[0051] In this embodiment, the control system 9 includes a PLC module and a vector encoder. The PLC module synchronously controls the movement of the rail trolley 5 through the vector encoder to make the truss main beam 4 move in parallel.

[0052] Specifically, in order to ensure the synchronization of the main beam with multiple supports in the running mechanism on multiple tracks, the PLC centralized control system 9 is used to transmit signals through a vector encoder to control and adjust the sliding speed of three or more rail trolleys 5 (the voltage and current are controlled by the PLC module, and then the motor speed of the rail trolley 5 is controlled).

[0053] Furthermore, the current and frequency of the motor are collected and controlled by the frequency converter to perform comparison and analysis, and then fed back to the PLC module to meet the synchronization through data comparison.

[0054] In this embodiment, the profile rail 3 includes a center plate, a first track and a second track. One end of the center plate is connected to the hanger 2. The first track and the second track are symmetrically arranged at the other end of the center plate. The profile rail trolley 5 is slidably connected between the first track and the second track.

[0055] Specifically, the rail trolley 5 includes a high-strength nylon rubber-coated wheel set. Three rail trolleys 5 form a three-point distribution, and the truss main beam 4 is translated by three-point traction to ensure synchronization.

[0056] In this embodiment, the first track and the second track have the same structure, including a connecting portion and a limiting portion, the limiting portion is C-shaped, a sliding cavity structure is formed between the two limiting portions, and the rail trolley 5 is slidably connected in the sliding cavity structure.

[0057] In this embodiment, the control system 9 is located below the main beam trolley 6 , and a connecting line is provided at one end of the control system 9 , and one end of the connecting line is connected to the main beam trolley 6 .

[0058] When the large-span rigid suspension multi-point crane of this embodiment is used, taking stacking items as an example, the operator controls the main beam trolley of the crane to move to a suitable position through the control system, and then controls the electric hoist to lift and connect the items to realize the transportation of the items. It can be used as a suspension crane in steel structure workshops of transportation industries such as airport maintenance workshops, automobile production lines, assembly lines, and cross-regional sorting lines in logistics. It can improve the efficiency of workshop item transfer within a limited factory space, increase the daily output of the conveyor line, play a role of high turnover and high capacity efficiency, and at the same time improve work efficiency and achieve significant economic benefits.

[0059] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A large-span rigid suspension multi-point crane, characterized in that: include: A truss main beam, on which a rail trolley is arranged; A plurality of load-bearing beams, wherein the plurality of load-bearing beams are arranged above the truss main beams, and the plurality of load-bearing beams are connected with profile rails through hanging pieces, and the profile rail trolley is slidably connected to the profile rails; A plurality of reinforcing beams, which are arranged on the truss main beam and are respectively located between two adjacent load-bearing beams; A main beam trolley, the main beam trolley is slidably connected to the truss main beam; A control system, wherein the control system is electrically connected to the rail trolley and the main beam trolley, and the control system centrally controls the movement of the main beam trolley and the rail trolley; It also includes a connecting rod, the two ends of which are respectively connected to the mutually close ends of the adjacent reinforcing beams; The hanging piece includes a long hanging piece and a short hanging piece, the long hanging piece is connected to both ends of the truss main beam, and the short hanging piece is connected to the connecting rod; The reinforcing beam comprises a cross beam and a plurality of vertical beams, one end of the plurality of vertical beams is connected to the truss main beam, and the other end of the plurality of vertical beams is connected to the cross beam; Three rail trolleys form a three-point distribution, and the truss main beam is translated by three-point traction.

2. A large-span rigid suspension multi-point crane according to claim 1, characterized in that: It also includes an electric hoist and an external C-rail cable. The electric hoist is arranged at the lower end of the main beam trolley, and the two ends of the external C-rail cable are respectively connected to the main beam trolley and the control system.

3. A large-span rigid suspension multi-support crane according to claim 1, characterized in that: Limiting brackets are arranged at both ends of the truss main beam.

4. The large-span rigid suspension multi-point crane according to claim 1, characterized in that: The control system includes a PLC module and a vector encoder. The PLC module synchronously controls the movement of the rail trolley through the vector encoder to make the truss main beam move in parallel.

5. The large-span rigid suspension multi-point crane according to claim 1, characterized in that: The profile rail includes a center plate, a first track and a second track. One end of the center plate is connected to the hanger. The first track and the second track are symmetrically arranged at the other end of the center plate. The profile rail trolley is slidably connected between the first track and the second track.

6. A large-span rigid suspension multi-support crane according to claim 5, characterized in that: The first track and the second track have the same structure, including a connecting portion and a limiting portion, the limiting portion is C-shaped, a sliding cavity structure is formed between the two limiting portions, and the rail trolley is slidably connected in the sliding cavity structure.

7. The large-span rigid suspension multi-point crane according to claim 1, characterized in that: The control system is located below the main beam trolley, a connecting line is provided at one end of the control system, and one end of the connecting line is connected to the main beam trolley.

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