Span-adjustable electric hoist portal crane and assembling equipment thereof

Abstract

The invention belongs to the technical field of cranes, and discloses a span-adjustable electric hoist portal crane and assembling equipment thereof.The span-adjustable electric hoist portal crane comprises a left supporting frame and a right supporting frame, the bottom of each supporting frame is fixedly connected with a sliding seat, the bottom of each sliding seat is slidably clamped with a sliding frame assembly, and the top of each supporting frame is slidably clamped with a cross beam assembly; a left locking mechanism and a right locking mechanism are clamped to the top of the sliding frame assembly in a sliding mode, a hydraulic mechanism is arranged on the top of each locking mechanism, hydraulic rods are arranged on the opposite faces of the two locking mechanisms, and the fixed ends of the hydraulic rods are connected with the hydraulic mechanisms. According to the invention, the splicing assembly of the plurality of splicing sliding frames and the main sliding frame can be realized through the second connecting pieces, and the splicing assembly of the plurality of splicing beams and the main cross beam can be realized through the first connecting pieces, so that the effect of adjusting the length of the cross beam assembly or the sliding frame assembly can be realized, and the effect of adjusting the hoisting span of the crane is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of cranes, and in particular is a span-adjustable electric hoist gantry crane and assembly equipment thereof. Background Art

[0002] Electric hoist gantry cranes are suitable for lifting and transferring objects in open-air operations, but are prohibited from lifting flammable and explosive objects. Moreover, the electric hoist gantry cranes used in the prior art are installed on a rail seat with a fixed span, which limits the lifting range of the electric hoist gantry cranes used in the prior art, thereby greatly reducing the practicability and work efficiency of on-site operations. Summary of the invention

[0003] 1. Technical issues to be solved

[0004] In order to solve the problems raised in the above background technology, the present invention provides a span-adjustable electric hoist gantry crane and an assembly device thereof, which have the advantage of convenient adjustment.

[0005] The second connecting member can be used to realize the splicing and assembly of several splicing slides and the main slide, and the first connecting member can be used to realize the splicing and assembly of several splicing beams and the main beam, thereby achieving the effect of adjusting the length of the beam assembly or the slide assembly, thereby achieving the effect of adjusting the lifting span of the crane.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a span-adjustable electric hoist gantry crane and its assembly equipment, comprising left and right support frames, each of the support frames being fixedly connected to a slide seat at the bottom, the bottom of the slide seat being slidably connected to a slide assembly, the top of the support frame being slidably connected to a beam assembly, the top of the slide assembly being slidably connected to left and right locking mechanisms, a hydraulic mechanism being arranged at the top of each locking mechanism, hydraulic rods being arranged on the facing surfaces of the two locking mechanisms, the fixed end of the hydraulic rod being connected to the hydraulic mechanism, the movable end of the hydraulic rod being connected to the slide seat, and the upper end of each of the support frames being provided with a locking assembly located at the front and rear sides of the beam assembly.

[0008] Preferably, the locking assembly includes a pneumatic rod fixedly mounted on the upper end of the support frame, the air outlet end of the pneumatic rod is connected to an air supply pipe, the interior of the support frame is provided with two sealed cavities located on the front and rear sides of the crossbeam assembly, the interior of the sealed cavity is movably sleeved with a locking column, and the other end of the air supply pipe is connected to the sealed cavity inside the support frame through an air inlet pipe.

[0009] Preferably, the length of the locking column is smaller than the length of the inner cavity of the sealing cavity, the locking column is sealingly sleeved inside the sealing cavity, one end of the locking column contacts the inner wall of the sealing cavity, and the other end of the locking column abuts against the crossbeam assembly.

[0010] Preferably, the slide assembly includes a main slide that is slidably clamped on the bottom of the slide seat, and the left and right ends of the main slide are fixedly connected to the splicing slide through a second connecting member, and the opposite back surfaces of the two splicing slides at the left and right ends are connected to the limiting blocks through the second connecting member.

[0011] Preferably, the second connecting member includes a second socket opened at the left and right ends of the main slide or one end of the splicing slide, the second socket is movably sleeved with a second plug rod, one end of the second plug rod is fixedly connected to a limiting rod inserted into the main slide or the splicing slide, a second positioning hole located above the limiting rod is opened on the top of the main slide or the splicing slide, a second positioning rod is rotatably sleeved inside the second positioning hole, and the lower end of the second positioning rod is threadedly sleeved on the inside of the limiting rod.

[0012] Preferably, the beam assembly includes a main beam that is slidably connected to the top of the support frame, the left and right ends of the main beam are connected to the spliced ​​beam through a first connecting piece, and the front and rear sides of the main beam and the spliced ​​beam are provided with hanging rails, and an electric hoist lifting mechanism is installed inside the hanging rails.

[0013] Preferably, the first connecting member includes a first socket opened at the left and right ends of the main beam or on the surface of the spliced ​​beam away from one end of the main beam, the first socket is movably sleeved with a first plug rod, a limiting hole is opened at the top of the first plug rod, a first positioning hole located above the limiting hole is opened at the top of the main beam or the spliced ​​beam, a first positioning rod is sleeved inside the first positioning hole, the upper end of the first positioning rod extends to the top of the main beam or the spliced ​​beam and is fixedly connected to a lifting block, and the lower end of the first positioning rod extends to the inside of the limiting hole.

[0014] Preferably, the length of the main slide is the same as the length of the main beam, and the length of the splicing slide is the same as the length of the splicing beam.

[0015] Preferably, the tops of the main slide, the spliced ​​slide and the limit block, as well as the bottoms of the main cross beam and the spliced ​​beam are all provided with slide grooves, and the top and bottom of the support frame are movably mounted with drag-reducing balls, which are rollingly connected to the inside of the slide grooves.

[0016] Preferably, the locking mechanism includes a locking seat arranged at the top of the slide assembly and between the two support frames, the bottom of the locking seat is provided with a slot that is slidably connected to the top of the main slide or the splicing slide, the interior of the locking seat is provided with two front and rear connecting cavities, the interior of the locking seat is provided with an air intake cavity located at the top of the connecting cavity, the air intake cavity is connected to the hydraulic mechanism through a hose, the internal movable sleeve of the locking seat is provided with locking columns located at both ends of the connecting cavity, and one end of the locking column is abutted against the main slide or the splicing slide.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention can realize the splicing and assembly of several splicing slides and the main slide through the second connecting member, and can realize the splicing and assembly of several splicing beams and the main beam through the first connecting member, thereby achieving the effect of adjusting the length of the beam assembly or the slide assembly, thereby achieving the effect of adjusting the lifting span of the crane.

[0020] 2. The present invention can facilitate the staff to control and lock any support frame and the beam assembly at any time through the locking assembly, and then the position of the other support frame can be adjusted under the cooperation of any set of locking mechanisms, hydraulic mechanisms and hydraulic rods to prevent the other support frame from moving at will and reducing stability.

[0021] 3. The present invention can effectively reduce the resistance between the support frame and the slide assembly or the crossbeam assembly through the cooperation of the slide groove and the drag-reducing ball, which can not only effectively improve the adjustment of the span of the two support frames, but also increase stability and improve safety during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a front view of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the crossbeam assembly of the present invention;

[0025] Figure 4 for Figure 3 Disassembly diagram in ;

[0026] Figure 5 It is a structural schematic diagram of the carriage assembly of the present invention;

[0027] Figure 6 for Figure 5 Disassembly diagram in ;

[0028] Figure 7A sectional view of the side of the air intake pipe in the present invention;

[0029] Figure 8 for Figure 7 A local enlarged schematic diagram of the middle A;

[0030] Fig. 9 It is a structural schematic diagram of the locking mechanism of the present invention;

[0031] Fig.10 for Fig. 9 Cross-sectional view from the middle side.

[0032] In the figure: 1, support frame; 2, slide seat; 3, main slide; 4, locking mechanism; 41, locking seat; 42, slot; 43, connecting cavity; 44, air intake cavity; 45, locking column; 5, hydraulic mechanism; 6, hydraulic rod; 7, splicing slide; 8, limit block; 9, main beam; 10, splicing beam; 11, hanging rail; 12, first connecting piece; 121, first plug hole; 122, first plug rod; 123, limit hole; 12 4. First positioning hole; 125. First positioning rod; 126. Lifting block; 13. Second connecting member; 131. Second plug hole; 132. Second plug rod; 133. Limit rod; 134. Second positioning hole; 135. Second positioning rod; 14. Slide groove; 15. Locking assembly; 151. Pneumatic rod; 152. Air supply pipe; 153. Sealing chamber; 154. Locking column; 155. Inlet pipe; 16. Drag reduction ball. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figures 1 to 10 As shown, the present invention provides an electric hoist gantry crane with adjustable span and its assembly equipment, including two left and right support frames 1, each support frame 1 is fixedly connected to a slide seat 2 at the bottom, the bottom of the slide seat 2 is slidably connected with a slide assembly, the top of the support frame 1 is slidably connected with a beam assembly, the top of the slide assembly is slidably connected with left and right locking mechanisms 4, each locking mechanism 4 is provided with a hydraulic mechanism 5 at the top, and hydraulic rods 6 are provided on the facing surfaces of the two locking mechanisms 4, the fixed end of the hydraulic rod 6 is connected to the hydraulic mechanism 5, and the movable end of the hydraulic rod 6 is connected to the slide seat 2, and the upper end of each support frame 1 is provided with a locking assembly 15 located on the front and rear sides of the beam assembly.

[0035] like Figure 8As shown, the locking assembly 15 includes a pneumatic rod 151 fixedly installed on the upper end of the support frame 1, and the air outlet end of the pneumatic rod 151 is connected to an air supply pipe 152. The interior of the support frame 1 is provided with two sealed chambers 153 located on the front and rear sides of the crossbeam assembly. The sealed chamber 153 is movably sleeved with a locking column 154, and the other end of the air supply pipe 152 is connected to the sealed chamber 153 inside the support frame 1 through an air inlet pipe 155. The locking assembly 15 can be used to facilitate the staff to control the locking of any support frame 1 and the crossbeam assembly at any time, and then the position of the other support frame 1 can be adjusted with the cooperation of any group of locking mechanisms 4, hydraulic mechanisms 5 and hydraulic rods 6 to prevent the other support frame 1 from moving at will and reducing stability.

[0036] like Figure 8 As shown, the length of the locking column 154 is less than the length of the inner cavity of the sealing cavity 153, and the locking column 154 is sealed and sleeved inside the sealing cavity 153. One end of the locking column 154 contacts the inner wall of the sealing cavity 153, and the other end of the locking column 154 is abutted against the crossbeam assembly.

[0037] like Figure 1 As shown, the slide assembly includes a main slide 3 that is slidably connected to the bottom of the slide seat 2, and the left and right ends of the main slide 3 are fixedly connected to the splicing slide 7 through the second connecting member 13, and the opposite back sides of the two splicing slides 7 located at the left and right ends are connected to the limiting block 8 through the second connecting member 13; the sliding groove 14 in the limiting block 8 can effectively prevent the rolling of the drag reduction ball 16, and then limit the moving range of the support frame 1, thereby ensuring that the locking mechanism 4 will not separate from the slide assembly when controlling the movement of the support frame 1.

[0038] like Figure 6 As shown, the second connecting member 13 includes a second socket 131 opened at the left and right ends of the main slide 3 or one end of the splicing slide 7, and the second socket 131 has a second plug rod 132 movably sleeved inside, and one end of the second plug rod 132 is fixedly connected to a limiting rod 133 inserted into the main slide 3 or the splicing slide 7. The top of the main slide 3 or the splicing slide 7 is provided with a second positioning hole 134 located above the limiting rod 133, and the second positioning hole 134 has a second positioning rod 135 rotatably sleeved inside, and the lower end of the second positioning rod 135 is threadedly sleeved inside the limiting rod 133; the second connecting member 13 can be used to realize the splicing and assembly of several splicing slides 7 and the main slide 3, effectively improving the lifting span, so that the slide assembly is suitable for the locking mechanism 4 to regulate the movement of the support frame 1 in a larger range.

[0039] like Figure 1As shown, the beam assembly includes a main beam 9 which is slidably connected to the top of the support frame 1, and the left and right ends of the main beam 9 are connected to the spliced ​​beam 10 through the first connecting piece 12. The front and rear sides of the main beam 9 and the spliced ​​beam 10 are provided with hanging rails 11, and the inside of the hanging rails 11 is equipped with an electric hoisting mechanism; the first connecting piece 12 can be used to realize the splicing and assembly of several spliced ​​beams 10 and the main beam 9, and then the length of the beam assembly can be adjusted, so that the crane can lift goods to a farther range, thereby improving its practicality.

[0040] like Figure 4 As shown, the first connecting member 12 includes a first socket 121 opened at the left and right ends of the main beam 9 or on the surface of the spliced ​​beam 10 away from one end of the main beam 9, and the first socket 121 has a first plug rod 122 movably sleeved inside, and a limiting hole 123 is opened on the top of the first plug rod 122, and a first positioning hole 124 located above the limiting hole 123 is opened on the top of the main beam 9 or the spliced ​​beam 10, and a first positioning rod 125 is sleeved inside the first positioning hole 124, and the upper end of the first positioning rod 125 extends to the top of the main beam 9 or the spliced ​​beam 10 and is fixedly connected to a lifting block 126, and the lower end of the first positioning rod 125 extends to the inside of the limiting hole 123.

[0041] like Figure 2 As shown, the length of the main slide 3 is the same as the length of the main cross beam 9 , and the length of the splicing slide 7 is the same as the length of the splicing beam 10 .

[0042] like Figure 5 As shown, the tops of the main slide 3, the splicing slide 7 and the limit block 8, as well as the bottoms of the main crossbeam 9 and the splicing beam 10 are all provided with slide grooves 14, and the top and bottom of the support frame 1 are movably installed with drag-reducing balls 16, which are rollingly connected to the inside of the slide grooves 14; the cooperation of the slide grooves 14 and the drag-reducing balls 16 can effectively reduce the resistance between the support frame 1 and the slide assembly or the crossbeam assembly, which can not only effectively improve the adjustment of the span of the two support frames 1, but also increase stability and improve safety during operation.

[0043] like Fig.10As shown, the locking mechanism 4 includes a locking seat 41 arranged at the top of the slide assembly and between the two support frames 1, a slot 42 is provided at the bottom of the locking seat 41 for slidingly engaging with the top of the main slide 3 or the splicing slide 7, two front and rear connecting cavities 43 are provided inside the locking seat 41, an air intake cavity 44 is provided inside the locking seat 41 at the top of the connecting cavity 43, the air intake cavity 44 is connected to the hydraulic mechanism 5 through a hose, and the locking seat 41 is internally movably sleeved with locking columns 45 located at both ends of the connecting cavity 43, one end of the locking column 45 is abutted against the main slide 3 or the splicing slide 7; the locking seat 41 can facilitate the installation of the hydraulic mechanism 5 and the hydraulic rod 6, and then under the locking action of the locking column 45 on the slide assembly, the hydraulic rod 6 can push the corresponding supporting frame 1 to move relative to the slide assembly, thereby adjusting the lifting span.

[0044] The working principle and use process of the present invention:

[0045] Assemble the equipment as shown in the figure. When the lifting span needs to be adjusted, first connect a plurality of splicing slides 7 to the two ends of the main slide 3 through the second connecting member 13 as needed, and finally install two limit blocks 8 at the two ends of the slide assembly through the second connecting member 13, and then splice a plurality of splicing beams 10 to the left and right ends of the main cross beam 9 through the first connecting member 12;

[0046] Then, the distance between the two support frames 1 is adjusted to change their span, that is, the positions of the two support frames 1 are adjusted in turn. When the position of one of the support frames 1 is adjusted, the locking assembly 15 on that side is unlocked so that the support frame 1 can move relative to the crossbeam assembly. At the same time, the locking assembly 15 on the other side is controlled to lock the crossbeam assembly with the top of the other support frame 1, and then the slide assembly is moved to lock the bottom of the support frame 1 on the other side through the cooperation of the locking mechanism 4 and the hydraulic rod 6, and then the other locking mechanism 4 is locked to the top of the slide assembly. Finally, the hydraulic mechanism 5 on the top of the locking mechanism 4 on one side of the support frame 1 to be adjusted is turned on to control the hydraulic rod 6 to move, so that the support frame 1 can move relative to the slide assembly and the crossbeam assembly with the cooperation of the slide groove 14 and the drag reduction ball 16.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A span-adjustable electric hoist gantry crane and its assembly equipment, comprising a crane and an assembly equipment, characterized in that: The crane comprises two left and right support frames (1), and the assembly equipment consists of a beam assembly and a slide assembly. The bottom of each support frame (1) is fixedly connected to a slide seat (2), the slide assembly is slidably connected to the bottom of the slide seat (2), the beam assembly is slidably connected to the top of the support frame (1), and the top of the slide assembly is slidably connected to two left and right locking mechanisms (4). The top of each locking mechanism (4) is provided with a hydraulic mechanism (5), and the facing surfaces of the two locking mechanisms (4) are provided with hydraulic rods (6), the fixed end of the hydraulic rod (6) is connected to the hydraulic mechanism (5), and the movable end of the hydraulic rod (6) is connected to the slide seat (2), and the upper end of each support frame (1) is provided with a locking assembly (15) located at the front and rear sides of the beam assembly.

2. The span-adjustable electric hoist gantry crane and its assembly equipment according to claim 1, characterized in that: The locking assembly (15) comprises a pneumatic rod (151) fixedly mounted on the upper end of the support frame (1); the air outlet end of the pneumatic rod (151) is connected to an air supply pipe (152); two sealed cavities (153) located at the front and rear sides of the crossbeam assembly are provided inside the support frame (1); a locking column (154) is movably sleeved inside the sealed cavity (153); and the other end of the air supply pipe (152) is connected to the sealed cavity (153) inside the support frame (1) through an air inlet pipe (155).

3. The span-adjustable electric hoist gantry crane and its assembly equipment according to claim 2, characterized in that: The length of the locking column (154) is smaller than the length of the inner cavity of the sealing cavity (153); the locking column (154) is sealingly sleeved inside the sealing cavity (153); one end of the locking column (154) contacts the inner wall of the sealing cavity (153); and the other end of the locking column (154) abuts against the crossbeam assembly.

4. The span-adjustable electric hoist gantry crane and its assembly equipment according to claim 1, characterized in that: The slide assembly comprises a main slide (3) slidably clamped on the bottom of the slide seat (2); the left and right ends of the main slide (3) are fixedly connected to the splicing slide (7) via a second connecting member (13); the opposite back surfaces of the two splicing slides (7) at the left and right ends are connected to the limiting blocks (8) via the second connecting member (13).

5. The span-adjustable electric hoist gantry crane and its assembly equipment according to claim 4, characterized in that: The second connecting member (13) includes a second plug hole (131) provided at the left and right ends of the main slide (3) or at one end of the splicing slide (7); a second plug rod (132) is movably sleeved inside the second plug hole (131); one end of the second plug rod (132) is fixedly connected to a limit rod (133) inserted into the main slide (3) or the splicing slide (7); a second positioning hole (134) located above the limit rod (133) is provided at the top of the main slide (3) or the splicing slide (7); a second positioning rod (135) is rotatably sleeved inside the second positioning hole (134); and the lower end of the second positioning rod (135) is threadedly sleeved inside the limit rod (133).

6. The span-adjustable electric hoist gantry crane and its assembly equipment according to claim 1, characterized in that: The crossbeam assembly comprises a main crossbeam (9) which is slidably connected to the top of the support frame (1); the left and right ends of the main crossbeam (9) are connected to a splicing beam (10) via a first connecting member (12); the front and rear sides of the main crossbeam (9) and the splicing beam (10) are both provided with hanging rails (11); and an electric hoist lifting mechanism is installed inside the hanging rail (11).

7. The span-adjustable electric hoist gantry crane and its assembly equipment according to claim 6, characterized in that: The first connecting member (12) includes a first plug hole (121) opened at the left and right ends of the main beam (9) or at the surface of the splicing beam (10) away from one end of the main beam (9); a first plug rod (122) is movably sleeved inside the first plug hole (121); a limiting hole (123) is opened at the top of the first plug rod (122); a first positioning hole (124) located above the limiting hole (123) is opened at the top of the main beam (9) or the splicing beam (10); a first positioning rod (125) is sleeved inside the first positioning hole (124); the upper end of the first positioning rod (125) extends to the top of the main beam (9) or the splicing beam (10) and is fixedly connected to a lifting block (126); the lower end of the first positioning rod (125) extends to the inside of the limiting hole (123).

8. The span-adjustable electric hoist gantry crane and its assembly equipment according to claim 6, characterized in that: The length of the main slide (3) is the same as the length of the main crossbeam (9), and the length of the splicing slide (7) is the same as the length of the splicing beam (10).

9. The span-adjustable electric hoist gantry crane and its assembly equipment according to claim 6, characterized in that: The tops of the main slide (3), the splicing slide (7) and the limit block (8) and the bottoms of the main crossbeam (9) and the splicing beam (10) are all provided with slide grooves (14); the top and bottom of the support frame (1) are both movably provided with drag-reducing balls (16); the drag-reducing balls (16) are rollingly connected to the inside of the slide grooves (14).

10. The span-adjustable electric hoist gantry crane and its assembly equipment according to claim 4, characterized in that: The locking mechanism (4) includes a locking seat (41) arranged at the top of the slide assembly and between the two support frames (1); the bottom of the locking seat (41) is provided with a slot (42) slidably connected to the top of the main slide (3) or the splicing slide (7); the interior of the locking seat (41) is provided with two front and rear connecting cavities (43); the interior of the locking seat (41) is provided with an air intake cavity (44) located at the top of the connecting cavity (43); the air intake cavity (44) is connected to the hydraulic mechanism (5) through a hose; the interior of the locking seat (41) is movably sleeved with locking columns (45) located at both ends of the connecting cavity (43); one end of the locking column (45) is abutted against the main slide (3) or the splicing slide (7).

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