Lifting trolley for maintenance of double-beam crane

Abstract

The utility model discloses a hoisting trolley for maintenance of a double-beam crane, which comprises underframes, the underframes are connected onto a crane rail through rollers, the underframes are connected through cross rods, the upper parts of the underframes are connected with vertical rods and inclined rods, one ends of the vertical rods and the inclined rods are connected onto two ends of the underframes, and the other ends of the vertical rods and the inclined rods are connected onto a cross beam. A suspension arm is connected to the cross beam and is provided with a steel wire rope system which is driven by an electric winch; the bottom frame is detachably connected with the cross rods, the vertical rods and the inclined rods; each part of the hoisting trolley is provided with a detachable structure, the separated light parts are conveyed to the upper part of the crown block, and the parts are combined into the hoisting trolley, so that the parts of the driving device on the crown block can be hoisted, and the labor intensity of maintenance personnel is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of overhead crane equipment, in particular to a hoisting trolley for the maintenance of a double-girder overhead crane. Background Art

[0002] Overhead crane equipment is an important hoisting equipment in the workshop, used to hoist various large mechanical equipment and parts. When the overhead crane is initially installed, a truck crane drives into the workshop and hoists and assembles the overhead crane's rails, hoisting drive devices such as motors, speed reducers, distribution cabinets, and resistance cabinets. However, when performing maintenance later, if it is necessary to hoist the parts on the overhead crane at a high altitude, since some workshops install the ceiling after assembling the overhead crane, it is inconvenient to use a truck crane to hoist the parts on it at this time. Especially for double-girder overhead cranes, the parts on them are large in volume and heavy in weight, and currently, there is no effective way to hoist the parts that need to be maintained or replaced on the ground for such overhead cranes.

[0003] Therefore, it is necessary to design a small overhead crane that can run above the rails of the overhead crane to be able to hoist the parts on the upper part of the overhead crane. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the utility model provides a hoisting trolley for the maintenance of a double-girder overhead crane, and adopts the following technical solutions.

[0005] A hoisting trolley for the maintenance of a double-girder overhead crane, the hoisting trolley is used for hoisting the overhead crane hoisting device on the double-girder overhead crane; the hoisting trolley includes a chassis, the chassis is connected to the overhead crane rails through rollers, the chassis is connected by a cross bar, a vertical bar and an inclined bar are connected to the upper part of the chassis, one ends of the vertical bar and the inclined bar are respectively connected to both ends of the chassis, the other ends of the vertical bar and the inclined bar are connected to a cross beam, a boom is connected to the cross beam, the boom is provided with a wire rope system, and the wire rope system is driven by an electric winch; wherein, the chassis is detachably connected to the cross bar, the vertical bar and the inclined bar, and the cross beam is detachably connected to the vertical bar, the inclined bar and the boom.

[0006] Further, one end of the chassis is connected by multiple cross bars, and an electric winch is installed on the multiple cross bars.

[0007] Further, a hanging hole is provided on the side of the chassis, and a protrusion is provided at the end of the cross bar, and the protrusion is clamped in the hanging hole.

[0008] Further, a connecting seat one and a connecting seat two are provided on the upper part of the chassis, and the connecting directions of the connecting seat one and the connecting seat two are perpendicular.

[0009] Further, connection heads I are provided at both ends of the vertical rod, and the connection head I at one end is connected to the connection seat I.

[0010] Further, one end of the inclined rod has a connection head II, and the other end has a connection head III. The connection head II is connected to the connection seat II.

[0011] Further, a composite connection seat is provided at the bottom of the cross beam. The composite connection seat has two angled openings. Among them, the vertical opening is connected to the connection head I at the other end of the vertical rod, and the inclined opening is connected to the connection head III of the inclined rod.

[0012] Further, the jib crane includes a horizontal section and an inclined section, and a sheave seat for carrying the wire rope is provided on the jib crane.

[0013] Further, counterweight blocks are provided on the multiple cross bars.

[0014] The beneficial effects of the present utility model are as follows: The chassis, cross bars, vertical rods, inclined rods, cross beam, and jib crane of the hoisting trolley of the present utility model are all provided with detachable structures. By transporting the above-mentioned separate and lighter components to the upper part of the overhead crane and combining the above components into a hoisting trolley, the hoisting of the components of the driving device on the overhead crane can be realized; the hoisting trolley drives the hook of the wire rope system through an electric winch, and can conveniently hoist the components of the overhead crane driving device to the ground for maintenance, and then hoist the components after maintenance to above the traveling crane track, greatly reducing the labor intensity of maintenance personnel.

[0015] Other technical effects of the present utility model are further elaborated in the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly describe the drawings required for the description of the embodiments. Obviously, the described drawings are only a part of the embodiments of the present utility model, rather than all the embodiments. Those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative efforts.

[0017] Figure 1 It shows a schematic diagram of the installation state of the hoisting trolley for double-girder overhead crane maintenance of the present utility model;

[0018] Figure 2 It shows a schematic diagram of the working state of the hoisting trolley for double-girder overhead crane maintenance of the present utility model;

[0019] Figure 3 It shows a schematic diagram of the overall structure of the hoisting trolley of the present utility model Figure 1 ;

[0020] Figure 4Schematic diagram of the overall structure of the hoisting trolley of the present utility model Figure 2 ;

[0021] Figure 5 Schematic diagram of the structure of the chassis of the hoisting trolley of the present utility model;

[0022] Figure 6 Schematic diagram of the structure of the vertical rod of the hoisting trolley of the present utility model;

[0023] Figure 7 Schematic diagram of the structure of the diagonal rod of the hoisting trolley of the present utility model;

[0024] Figure 8 Schematic diagram of the overall structure of the cross beam of the hoisting trolley of the present utility model;

[0025] Figure 9 Front view of the cross beam of the hoisting trolley of the present utility model.

[0026] Explanation of reference numerals:

[0027] 100 - Hoisting trolley; 110 - Chassis; 111 - Roller; 112 - Connecting seat 1; 113 - Connecting seat 2; 114 - Hanging hole; 120 - Cross bar; 130 - Vertical rod; 131 - Connecting head 1; 140 - Diagonal rod; 141 - Connecting head 2; 142 - Connecting head 3; 150 - Cross beam; 151 - Composite connecting seat; 152 - Connecting column; 160 - Boom; 161 - Sheave seat; 170 - Wire rope system; 180 - Electric hoist; 190 - Counterweight; 200 - Double - girder overhead crane; 210 - Overhead crane hoisting device; 220 - Overhead crane track. Detailed implementation manners

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Therefore, all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the protection scope of the present utility model.

[0029] It should be noted that all the connection relationships mentioned in the text do not simply refer to the direct connection of components, but refer to the possibility of forming a better connection structure by adding or reducing connection accessories according to specific implementation situations; without conflict, the embodiments and the features and technical solutions in the embodiments of the present utility model can be combined with each other. In addition, the terms "first", "second", "upper end", "lower end", "inner end", "outer end", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0030] A hoisting trolley for double - girder overhead crane maintenance, referring toFigures 1 - 9 As shown, the lifting trolley 100 is used to hoist the overhead crane lifting device 210 on the double-girder overhead crane 200; the lifting trolley 100 includes a chassis 110, the chassis 110 is connected to the overhead crane track 220 through rollers 111, the chassis 110 is connected by a cross bar 120, a vertical rod 130 and an inclined rod 140 are connected to the upper part of the chassis 110, one ends of the vertical rod 130 and the inclined rod 140 are respectively connected to both ends of the chassis 110, the other ends of the vertical rod 130 and the inclined rod 140 are connected to a cross beam 150, a boom 160 is connected to the cross beam 150, a wire rope system 170 is arranged on the boom 160, and the wire rope system 170 is driven by an electric hoist 180; wherein, the chassis 110 is detachably connected to the cross bar 120, the vertical rod 130 and the inclined rod 140, and the cross beam 150 is detachably connected to the vertical rod 130, the inclined rod 140 and the boom 160, and the connection is specifically made by using a pin shaft.

[0031] Specifically, one end of the chassis 110 is connected by multiple cross bars 120, and an electric hoist 180 is installed on the multiple cross bars 120. The electric hoist 180 is a small device and can hoist general weight items such as reducers and motors.

[0032] Specifically, a hanging hole 114 is arranged on the side of the chassis 110, and a protrusion is provided at the end of the cross bar 120. The protrusion is used to be clamped in the hanging hole 114 to realize the connection of the cross bar 120.

[0033] Specifically, a first connecting seat 112 and a second connecting seat 113 are arranged on the upper part of the chassis 110. The connection directions of the first connecting seat 112 and the second connecting seat 113 are perpendicular. Combining with the attached Figure 5 , that is, the first connecting seat 112 and the second connecting seat 113 have openings, and the openings are used to accommodate the corresponding connecting heads of the vertical rod 130 and the inclined rod 140. The directions of the openings of the first connecting seat 112 and the second connecting seat 113 are different. When the inclined rod 140 is connected, it needs to be swung and adjusted in a certain direction along the overhead crane track 220, and its opening direction is the same as the direction of the overhead crane track 220.

[0034] Specifically, connecting heads one 131 are arranged at both ends of the vertical rod 130. The connecting head one 131 at one end is connected to the first connecting seat 112, and the two connecting heads have protrusions, and the extending directions of the protrusions are the same.

[0035] Specifically, one end of the inclined rod 140 has a connecting head two 141, and the other end has a connecting head three 142. The connecting head two 141 is connected to the second connecting seat 113. The connecting head two 141 and the connecting head three 142 also have protrusions, and the extending directions of the protrusions are different, which is convenient for connecting with the chassis 110 and the cross beam 150.

[0036] Specifically, a composite connection base 151 is provided at the bottom of the cross beam 150. The composite connection base 151 has two angled openings. Among them, the vertical opening is connected to the connection head one 131 at the other end of the vertical rod 130, and the inclined opening is connected to the connection head three 142 of the inclined rod 140. The inclined opening is connected by means of a pin shaft connection.

[0037] Specifically, a connection column 152 is provided at the upper part of the cross beam 150. The connection column 152 is connected to the lifting arm 160, preferably in a rotatable connection, to realize the swinging of the cross beam 150 at a certain angle, and can realize the lifting of components at different positions of the overhead crane lifting device 210.

[0038] Specifically, the lifting arm 160 includes a horizontal section and an inclined section. A rope wheel seat 161 for carrying the steel wire rope is provided on the lifting arm 160. The rope wheel seat 161 is detachably arranged on the lifting arm 160.

[0039] Specifically, counterweight blocks 190 are provided on the multiple cross bars 120 to ensure the stability of the lifting trolley 100 during the lifting process.

[0040] When the lifting trolley of the present utility model is in use, first lift each component to the overhead crane track manually. Specifically, after lifting the two groups of underframes 110, install the rollers 111 on the overhead crane track 210. The two groups of underframes 110 are connected by multiple cross bars 120. The hooks on the cross bars 120 are stuck in the hanging holes 114 on the side of the underframe 110. Among them, one end close to the connection seat two 113 is connected by 3 cross bars 120; then lift the two vertical rods 130 and the inclined rods 140 respectively. The connection head one 131 at one end of the vertical rod 130 is installed on the connection seat 112 of the underframe 110. The connection head two 141 of the inclined rod 140 is connected to the connection seat two 113. Then lift the cross beam 150, and connect the connection head one 131 at the other end of the vertical rod 130 and the connection head three 142 of the inclined rod 140 to the vertical connection hole and the inclined connection hole of the composite connection seat 151 of the cross beam 150. Then lift the lifting arm 160 and install the lifting arm 160 on the upper part of the cross beam 150. Then lift the electric hoist 180 and connect it to the cross bar 120, and connect the steel wire rope system 170 to the lifting arm 160 and the electric hoist 180; finally, set counterweight blocks on the three cross bars 120; during specific hoisting, manually push the lifting trolley 100 to move on the overhead crane track 220, and lift the components of the overhead crane lifting device 210 on the double-girder overhead crane 200 through the hook of the steel wire rope system 170.

[0041] The chassis, cross bar, vertical bar, diagonal bar, cross beam, and boom of the hoisting trolley of the present utility model are all provided with detachable structures. By transporting the above-mentioned separate and lighter components to the upper part of the overhead crane and combining the above components into a hoisting trolley, the hoisting of the components of the driving device on the overhead crane can be realized; the hoisting trolley drives the hook of the wire rope system through an electric winch, and can conveniently hoist the components of the overhead crane driving device to the ground for maintenance, and then hoist the components after maintenance to above the gantry crane track, greatly reducing the labor intensity of maintenance personnel.

[0042] For the present utility model, the parts not described herein can be the same as the prior art, or be well-known technologies, or can be implemented by using the prior art, and will not be elaborated herein.

[0043] It should be noted that the above embodiments are intended to illustrate the technical solutions of the present utility model, and are exemplary ways of the claims of the present utility model, rather than limitations on the claims. Although the above embodiments have described the present utility model in detail, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A lifting trolley for maintenance of a double-beam overhead crane, the lifting trolley (100) being used to lift a crane lifting device (210) on a double-beam overhead crane (200); characterized in that: The lifting trolley (100) comprises a base frame (110), wherein the base frame (110) is connected to a crane track (220) via a roller (111), and the base frames (110) are connected to each other via a cross bar (120), and a vertical bar (130) and an oblique bar (140) are connected to the upper part of the base frame (110), and one end of the vertical bar (130) and the oblique bar (140) are respectively connected to two ends of the base frame (110), and the other ends of the vertical bar (130) and the oblique bar (140) are connected to a cross beam (150), and a boom (160) is connected to the cross beam (150), and the boom (160) is provided with a wire rope system (170), and the wire rope system (170) is driven by an electric winch (180); The base frame (110) is detachably connected to the crossbar (120), the vertical bar (130), and the diagonal bar (140), and the crossbeam (150) is detachably connected to the vertical bar (130), the diagonal bar (140), and the suspension arm (160).

2. The double-beam overhead crane maintenance hoisting trolley as claimed in claim 1, characterized in that: One end of the base frame (110) is connected via a plurality of cross bars (120), and an electric winch (180) is mounted on the plurality of cross bars (120).

3. The double-beam overhead crane maintenance hoisting trolley as claimed in claim 2, characterized in that: A hanging hole (114) is provided on the side of the base frame (110), and a protrusion is provided at the end of the crossbar (120), and the protrusion is clamped in the hanging hole (114).

4. The double-beam overhead crane maintenance hoisting trolley as claimed in claim 3, characterized in that: A connection seat 1 (112) and a connection seat 2 (113) are arranged on the upper part of the base frame (110), and the connection direction of the connection seat 1 (112) and the connection seat 2 (113) is perpendicular.

5. The double-beam overhead crane maintenance hoisting trolley as claimed in claim 4, characterized in that: Connecting heads (131) are provided at both ends of the vertical rod (130), and the connecting head (131) at one end is connected to a connecting seat (112).

6. The double-beam overhead crane maintenance hoisting trolley as claimed in claim 5, characterized in that: The oblique rod (140) has a second connector (141) at one end and a third connector (142) at the other end, and the second connector (141) is connected to the second connector seat (113).

7. The double-beam overhead crane maintenance hoisting trolley as claimed in claim 6, characterized in that: The bottom of the crossbeam (150) has a composite connection seat (151), and the composite connection seat (151) has two angled openings, wherein the vertical opening is connected to a first connection head (131) at the other end of the vertical rod (130), and the inclined opening is connected to a third connection head (142) of the oblique rod (140).

8. The double-beam overhead crane maintenance hoisting trolley as claimed in claim 7, characterized in that: The upper portion of the crossbeam (150) is provided with a connecting column (152), and the connecting column (152) is connected to the suspension arm (160).

9. The double-beam overhead crane maintenance hoisting trolley as claimed in claim 8, characterized in that: The suspension arm (160) comprises a horizontal section and an inclined section, and a rope sheave seat (161) for carrying a steel wire rope is provided on the suspension arm (160).

10. The double-beam overhead crane maintenance hoisting trolley as claimed in claim 9, characterized in that: The plurality of cross bars (120) are provided with counterweight blocks (190).

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