Multi-fulcrum beam type suspension crane

Abstract

The utility model relates to a multi-fulcrum beam type suspension crane which comprises a beam frame of the crane, the beam frame comprises a large-span main beam and a plurality of end beams perpendicular to the main beam, and the end beams are arranged in the middle and at the two ends of the main beam respectively. A plurality of sets of electric hoists are arranged on the lower portion of the end beam, the end beam comprises a bottom plate fixedly connected to the upper end face of the main beam, two sets of beam plates which stand side by side and are opposite to each other are fixedly connected to the bottom plate, and a guide rail with the I-shaped section is inserted between the beam plates of the end beam; guide wheel assemblies are arranged at the two ends of the end beams in the middle of the main beam respectively, one end of each end beam at the two ends of the main beam is provided with a guide wheel assembly, and the other end is provided with a walking wheel assembly. The large-span main beam is provided with a plurality of groups of end beams which are connected with a plurality of groups of walking guide rails, so that the bearing performance of the crane can be effectively ensured; meanwhile, the guide rails and the end beams are arranged above the main beam, movement of the electric hoist is not affected, and the whole area under the main beam can be covered.

Description

Technical field:

[0001] The utility model relates to the technical field of cranes, and more specifically to a multi-support beam type suspension crane. Background technology:

[0002] With the rapid development of large-scale infrastructure construction, energy industry, real estate industry, petrochemical industry and shipbuilding industry in my country in recent years, the development of heavy machinery manufacturing industry such as cranes in my country has been greatly driven. There are many types of cranes, and the classification methods are also diverse. According to their structural forms, they can be divided into bridge type, beam type, tower type, etc. Among them, beam cranes are widely used in workshops. The main beam of beam cranes is generally welded by I-beams. The bottom plates on both sides of the I-beam vertical beam form the moving track of the electric hoist, and the electric hoist is slidably connected on the moving track for transporting goods. At the same time, the two ends of the main beam are fixedly connected with end beams perpendicular to the main beam. The end beams are provided with guide wheels or running wheels, and the guide wheels or running wheels are mounted on the running rails on the lower side of the main beam; the electric hoist on the beam crane of the above structure cannot be moved to the bottom of the main beam end due to the interference of the running rails and the end beams, so the travel is limited, especially for some large-span beam cranes, which need the crane to be able to move to various places in the factory area (including the bottom of the running rails), so improvements are made, and at the same time, the effective support strength of the large-span main beam needs to be taken into account during the improvement process. Utility model content:

[0003] The purpose of the utility model is to address the deficiencies of the prior art and to provide a multi-support beam type suspension crane, whose large-span main beam is provided with multiple sets of end beams connected with multiple sets of walking rails, which can effectively ensure the load-bearing performance of the crane; at the same time, the guide rails and the end beams are arranged above the main beam without affecting the movement of the electric hoist.

[0004] The multi-support beam type suspension crane comprises a crane beam frame, the beam frame comprises a main beam with a large span and a plurality of end beams perpendicular to the main beam, the end beams are respectively arranged at the middle and both ends of the main beam; a plurality of groups of electric hoists are arranged at the lower part of the end beam, the end beam comprises a bottom plate fixedly connected to the upper end surface of the main beam, two groups of side-standing and opposite beam plates are fixedly connected to the bottom plate, and a guide rail with an "I"-shaped cross section is inserted between the beam plates of the end beam;

[0005] Both ends of the end beam in the middle of the main beam are respectively provided with guide wheel assemblies, and one end of the end beam at both ends of the main beam is provided with a guide wheel assembly and the other end is provided with a walking wheel assembly;

[0006] The guide wheel assembly includes a first intermediate bracket inserted and fixed between the beam plates. A first connecting shaft is inserted into the first intermediate bracket. At both ends of the first connecting shaft, there are respectively inserted and fixedly connected first ear plates. Several first guide wheels are pivotally connected to the upper parts of the first ear plates through pin shafts. The traveling wheel assembly includes a second intermediate bracket inserted and fixed between the beam plates. A second connecting shaft is inserted into the second intermediate bracket. At both ends of the second connecting shaft, there are respectively inserted and fixedly connected second ear plates. Several second guide wheels are pivotally connected to the upper parts of the second ear plates through pin shafts. The first guide wheels and the second guide wheels are respectively inserted on both sides of the guide rail and abutted against the lower bottom surface inside the guide rail. A traveling motor is fixedly connected to the second ear plate on one side of the second connecting shaft. The traveling motor is connected with a traveling wheel through a transmission wheel. The traveling wheel is pivotally connected to the second ear plate through a pin shaft and abutted against the lower bottom surface inside the guide rail.

[0007] Preferably, the bottom plate is located in the middle of the beam plates, and both sides of the bottom plate respectively extend out of the outer side walls of the beam plates.

[0008] Preferably, there are two sets of opposite protective brackets arranged on the beam plates at the bottom plate. The protective bracket includes a connecting plate fixedly connected to the upper part of the outer side wall of the beam plate. On both sides of the connecting plate, there are respectively welded and fixed rib plates. The lower ends of the rib plates are fixedly connected to the bottom plate.

[0009] A support beam with a cross-section in the shape of "I" is fixedly connected to the connecting plate and the upper end surface of the beam plate. The support beam includes a lower support plate, an upper support plate and a vertical plate. A horizontally U-shaped protective plate is sleeved on the support beam. One side of the protective plate extends out of the inner side wall of the beam plate and is inserted into the guide rail. The other side is fixedly connected with a vertically standing linkage plate. An adjusting bolt is pivotally connected to the linkage plate. The end of the adjusting bolt is screwed with a longitudinal support plate. The two ends of the longitudinal support plate are respectively fixedly connected to the rib plates.

[0010] Preferably, the rib plate is in the shape of a right trapezoid, and the side of the rib plate is welded and fixed to the outer side wall of the beam plate; the upper end surface of the connecting plate is flush with the upper end surface of the beam plate.

[0011] Preferably, the upper end surface of the protective plate abuts against the upper support plate of the support beam, the lower end surface of the protective plate abuts against the upper end surface of the beam plate, and the inner side walls of both sides of the protective plate respectively abut against the side walls of both sides of the lower support plate of the support beam.

[0012] Preferably, the main beam is composed of several groups of transverse beam bodies.

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

[0014] This large-span main beam is provided with multiple groups of end beams connected to multiple groups of traveling guide rails, which can effectively ensure the load-bearing performance of the crane; at the same time, both the guide rail and the end beam are arranged above the main beam, without affecting the movement of the electric hoist, and can cover the entire area directly below the main beam. Description of the drawings:

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure at A in the middle

[0017] Figure 3 It is a schematic diagram of the structure of the utility model from a side view;

[0018] Figure 4 It is a schematic diagram of the top view of the end beam part of the utility model;

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the protective bracket part of the utility model.

[0020] In the figure: 1. beam frame; 11. main beam; 12. end beam; 2. guide rail; 4. guide wheel assembly; 41. first intermediate bracket; 42. first connecting shaft; 43. first ear plate; 44. first guide wheel; 5. walking wheel assembly; 51. second intermediate bracket; 52. second connecting shaft; 53. second ear plate; 54. second guide wheel; 55. walking motor; 56. walking wheel; 6. electric hoist; 7. protective bracket. Specific implementation method:

[0021] Example: See Figures 1 to 5 As shown, a multi-support beam type suspension crane comprises a crane beam frame 1, the beam frame 1 comprises a main beam 11 with a large span and a plurality of end beams 12 perpendicular to the main beam 11, the end beams 12 are respectively arranged at the middle and both ends of the main beam 11; a plurality of groups of electric hoists 6 are arranged at the lower part of the end beam 12, the end beam 12 comprises a bottom plate 121 fixedly connected to the upper end surface of the main beam 11, two groups of side-standing and opposite beam plates 122 are fixedly connected to the bottom plate 121, a guide rail 2 with an "I"-shaped cross section is inserted between the beam plates 122 of the end beam 12; the guide rail 2 is fixedly connected to the top structure in the building;

[0022] The two ends of the end beam 12 in the middle of the main beam 11 are respectively provided with guide wheel assemblies 4, and the end beams 12 at both ends of the main beam 11 are provided with guide wheel assemblies 4 at one end and walking wheel assemblies 5 at the other end;

[0023] The guide wheel assembly 4 includes a first intermediate bracket 41 inserted and fixed between the beam plates 122, a first connecting shaft 42 is inserted on the first intermediate bracket 41, and first ear plates 43 are respectively inserted and fixed at both ends of the first connecting shaft 42, and a plurality of first guide wheels 44 are pivotally connected to the upper part of the first ear plate 43 through a pin shaft; the walking wheel assembly 5 includes a second intermediate bracket 51 inserted and fixed between the beam plates 122, a second connecting shaft 52 is inserted on the second intermediate bracket 51, and both ends of the second connecting shaft 52 are respectively inserted and fixedly connected to the first ear plate 43. A second ear plate 53 is respectively fixedly connected with the sleeve, and a plurality of second guide wheels 54 are pivotally connected to the upper part of the second ear plate 53 through a pin shaft. The first guide wheel 44 and the second guide wheel 54 are respectively inserted on both sides of the guide rail 2 and abut against the lower bottom surface of the inner side of the guide rail 2; a travel motor 55 is fixedly connected to the second ear plate 53 on one side of the second connecting shaft 52, and the travel motor 55 is connected to the travel wheel 56 through a transmission wheel. The travel wheel 56 is pivotally connected to the second ear plate 53 through a pin shaft and abuts against the lower bottom surface of the inner side of the guide rail 2.

[0024] The bottom plate 121 is located in the middle of the beam plate 122 , and two sides of the bottom plate 121 extend out of the outer side walls of the beam plate 122 respectively.

[0025] Two sets of opposing protection brackets 7 are provided on the beam plate 122 at the bottom plate 121. The protection bracket 7 includes a connecting plate 71 fixedly connected to the upper part of the outer wall of the beam plate 122. Both sides of the connecting plate 71 are respectively welded and fixed to the rib plate 72. The lower end of the rib plate 72 is fixedly connected to the bottom plate 121.

[0026] The connecting plate 71 and the upper end surface of the beam plate 122 are fixedly connected with a support beam 73 with an "I"-shaped cross section. The support beam 73 includes a lower support plate, an upper support plate and a vertical plate. A horizontal U-shaped protective plate 74 is sleeved on the support beam 73. One side of the protective plate 74 extends out of the inner wall of the beam plate 122 and is inserted into the guide rail 2, and the other side is fixedly connected with a side linkage plate 75. An adjusting bolt 76 is pivotally connected to the linkage plate 75. The end of the adjusting bolt 76 is screwed with a longitudinal support plate 77. The two ends of the longitudinal support plate 77 are respectively fixedly connected to the rib plate 72, and the protective plate 74 does not contact the side wall of the guide rail 2.

[0027] The function of the above-mentioned protective bracket 7 is that when the wheel set at one end of the end beam 12 derails, the beam frame will fall. By setting the protective bracket 7 and using the protective plate 74 on the protective bracket 7 to fall and hang on the guide rail 2, the beam frame can be prevented from falling, thereby achieving a protective effect.

[0028] The rib plate 72 is in the shape of a right-angled trapezoid, and the side of the rib plate 72 is welded and fixed to the outer side wall of the beam plate 122; the upper end surface of the connecting plate 71 is flush with the upper end surface of the beam plate 122.

[0029] The upper end surface of the protection plate 74 abuts against the upper support plate of the support beam 73, the lower end surface of the protection plate 74 abuts against the upper end surface of the beam slab 122, and the inner walls on both sides of the protection plate 74 respectively abut against the side walls on both sides of the lower support plate of the support beam 73.

[0030] Preferably, the main beam 11 is composed of several groups of transverse beam bodies.

[0031] Working principle: This structure is a multi-point supported beam type suspension crane. The beam type suspension crane is provided with a main beam 11 composed of two groups of beam bodies. End beams 12 are provided at the middle and both ends of the main beam 11. The end beams 12 are slidably connected to three groups of guide rails 2 based on the guide wheel assemblies 4 and the traveling wheel assemblies 5. Thus, there are two groups of guide rails 2 to support the suspension crane, that is, a multi-point support structure is adopted, which can effectively ensure the load-bearing performance of the beam type suspension crane.

[0032] At the same time, both the guide rails 2 and the end beams 12 are arranged above the main beam 11. The main beam 11 is connected to the guide rails 2 in a suspended manner. Furthermore, there are no interfering objects below the main beam 11, and the electric hoist 6 can move to the end of the main beam 11.

[0033] The described embodiments are used to illustrate the present invention by way of example, rather than to limit the present invention. Any person skilled in the art can modify the described embodiments without departing from the spirit and scope of the present invention. Therefore, the scope of the rights protection of the present invention shall be as listed in the claims of the present invention.

Claims

1. Multi-point support beam type suspension crane, including the beam frame (1) of the crane, the beam frame (1) includes a main beam (11) with a large span and several end beams (12) perpendicular to the main beam (11), and the end beams (12) are respectively arranged in the middle and at both ends of the main beam (11); several groups of electric hoists (6) are arranged below the end beams (12), and it is characterized in that: The end beam (12) includes a bottom plate (121) fixedly connected to the upper end surface of the main beam (11). Two sets of side-by-side and opposite beam plates (122) are fixedly connected to the bottom plate (121). A guide rail (2) with an "I"-shaped cross-section is inserted between the beam plates (122) of the end beam (12); Guide wheel assemblies (4) are respectively arranged at both ends of the end beam (12) in the middle of the main beam (11). One end of the end beam (12) at both ends of the main beam (11) is provided with a guide wheel assembly (4), and the other end is provided with a traveling wheel assembly (5); The guide wheel assembly (4) includes a first intermediate bracket (41) inserted and fixed between the beam plates (122). A first connecting shaft (42) is inserted into the first intermediate bracket (41). First ear plates (43) are respectively inserted, sleeved and fixedly connected to both ends of the first connecting shaft (42). A plurality of first guide wheels (44) are pivotally connected to the upper parts of the first ear plates (43) through pin shafts. The traveling wheel assembly (5) includes a second intermediate bracket (51) inserted and fixed between the beam plates (122). A second connecting shaft (52) is inserted into the second intermediate bracket (51). Second ear plates (53) are respectively inserted, sleeved and fixedly connected to both ends of the second connecting shaft (52). A plurality of second guide wheels (54) are pivotally connected to the upper parts of the second ear plates (53) through pin shafts. The first guide wheels (44) and the second guide wheels (54) are respectively inserted on both sides of the guide rail (2) and abutted against the lower bottom surface inside the guide rail (2). A traveling motor (55) is fixedly connected to the second ear plate (53) on one side of the second connecting shaft (52). The traveling motor (55) is connected to a traveling wheel (56) through a transmission wheel. The traveling wheel (56) is pivotally connected to the second ear plate (53) through a pin shaft and abutted against the lower bottom surface inside the guide rail (2).

2. The multi-point supported beam type suspension crane according to claim 1, wherein: The bottom plate (121) is located in the middle of the beam plates (122), and both sides of the bottom plate (121) respectively extend out of the outer side walls of the beam plates (122).

3. The multi-point beam type suspension crane according to claim 2, characterized in that: Two sets of opposite protective brackets (7) are arranged on the beam plates (122) at the bottom plate (121). The protective bracket (7) includes a connecting plate (71) fixedly connected to the upper part of the outer side wall of the beam plate (122). Reinforcing plates (72) are respectively welded and fixed to both sides of the connecting plate (71). The lower ends of the reinforcing plates (72) are fixedly connected to the bottom plate (121); A support beam (73) with an "I"-shaped cross-section is fixedly connected to the upper end surfaces of the connecting plate (71) and the beam plate (122). The support beam (73) includes a lower support plate, an upper support plate and a vertical plate. A horizontally U-shaped protective plate (74) is sleeved on the support beam (73). One side of the protective plate (74) extends out of the inner side wall of the beam plate (122) and is inserted into the guide rail (2), and the other side is fixedly connected with a vertically standing linkage plate (75). An adjusting bolt (76) is pivotally connected to the linkage plate (75). The end of the adjusting bolt (76) is screwed with a longitudinal support plate (77). Both ends of the longitudinal support plate (77) are respectively fixedly connected to the reinforcing plates (72).

4. The multi-point support beam type suspension crane according to claim 3, characterized in that: The reinforcing plate (72) is in the shape of a right trapezoid, and the side of the reinforcing plate (72) is welded and fixed to the outer side wall of the beam plate (122); the upper end surface of the connecting plate (71) is flush with the upper end surface of the beam plate (122).

5. The multi-point support beam type suspension crane according to claim 3, characterized in that: The upper end face of the protective plate (74) abuts against the upper support plate of the support beam (73), the lower end face of the protective plate (74) abuts against the upper end face of the beam slab (122), and the inner walls on both sides of the protective plate (74) respectively abut against the side walls on both sides of the lower support plate of the support beam (73).

6. The multi-point supported beam type suspension crane according to claim 1, wherein: The main beam (11) described above is composed of several groups of transverse beam bodies.

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