Wheel changing frame with lifting hydraulic rod for bridge crane

Abstract

The utility model discloses a wheel replacing frame with a lifting hydraulic rod for a bridge crane, which belongs to the technical field of crane wheel replacement and comprises a wheel replacing frame chassis, a movable chassis and a wheel replacing frame body. The wheel changing frame chassis comprises two longitudinal beams and a plurality of cross beams between the two longitudinal beams; the longitudinal beams are U-shaped steel; the movable chassis is embedded between the two longitudinal beams, a groove rail is arranged on the upper surface of the movable chassis, and a longitudinal movement hydraulic rod is installed between the movable chassis and the wheel changing frame chassis. The wheel changing frame body comprises a movable supporting frame, a transverse movement hydraulic rod is arranged between the movable supporting frame and the wheel changing frame chassis, a protrusion is arranged at the bottom of the movable supporting frame, the movable supporting frame is connected with the wheel supporting arm through a plug pin, and a lifting hydraulic rod is installed between the plug pin and the movable supporting frame. A protrusion is arranged on the lower surface of the cross beam located on the outermost side of the wheel changing frame chassis. The problem that in the prior art, in the bridge crane wheel replacing process, the wheels cannot be directly transferred to the installation position manually or through a chain block is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of crane wheel replacement, in particular to a wheel changing frame for a bridge crane with a lifting hydraulic rod. Background Art

[0002] Bridge cranes are a common type of industrial equipment used to move heavy objects in factories, warehouses, cargo yards and other places. During long-term use, the wheels or wheel bearings of bridge cranes will wear or fail, and new wheels need to be replaced regularly.

[0003] Wheel replacement for overhead cranes is a complex and challenging task. Due to the weight and size of the wheels, limited operating space, high-precision alignment and installation requirements, safety risks, and the need for specialized techniques and equipment, specialized technicians and equipment are usually required to complete this task to ensure safe and efficient wheel replacement.

[0004] The traditional way of replacing bridge crane wheels has the following problems:

[0005] The wheels of bridge cranes are located below the trolley truss or the small trolley truss, and cannot be directly replaced by vertical lifting methods (such as electric hoists or truck cranes). Usually, a fall chain is hung on the overhead crane truss, and the wheel to be replaced is transported to the track by manual pushing or crowbars, and then the wheel is manually pushed into the installation position. This manual operation method has potential major safety hazards and is prone to wheel tilting and injuring people. In addition, due to the heavy weight of the wheel, it brings great physical burden to the operator. In a small space environment, it is impossible to directly transport the wheel to the installation position by manual or fall chains, which brings many difficulties to the replacement operation. Utility Model Content

[0006] The utility model aims to provide a wheel-changing frame for a bridge crane with a lifting hydraulic rod, so as to solve the technical problem in the above-mentioned background technology that the wheel cannot be directly transported to the installation position manually or by a fall chain during the replacement of the wheel of the bridge crane.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A wheel-changing frame for a bridge crane with a lifting hydraulic rod comprises a wheel-changing frame chassis, a mobile chassis and a wheel-changing frame body;

[0009] The wheel-changing frame chassis comprises two longitudinal beams parallel to each other and a plurality of cross beams connected between the two longitudinal beams, which are used to strengthen the overall structural rigidity of the chassis so that the chassis will not be significantly deformed when bearing the weight of the wheels; a protrusion for limiting the position of the wheel-changing frame chassis is provided on the lower surface of the cross beam located at the outermost side of the wheel-changing frame chassis, and the longitudinal beam is a U-shaped steel;

[0010] The mobile chassis is embedded between two longitudinal beams, a groove track is provided on the upper surface of the mobile chassis, and a longitudinal moving hydraulic rod is installed between the mobile chassis and the wheel changing frame chassis;

[0011] The wheel changing frame body includes a movable support frame, a lateral movement hydraulic rod is provided between the movable support frame and the wheel changing frame chassis, a protrusion is provided at the bottom of the movable support frame to cooperate with the groove track of the movable chassis, the movable support frame is connected to the wheel support arm through a pin, and a lifting hydraulic rod is installed between the pin and the movable support frame.

[0012] Preferably, a toothed shaft is provided on the latch pin, so that the latch pin is more stable and reliable when rotating.

[0013] Preferably, the upper surface of the end of the wheel support arm is arranged to be a concave arc shape, so that the end of the support arm can fit closely to the outer arc surface of the wheel bearing seat.

[0014] Preferably, the piston rod end of the lifting hydraulic rod is hinged to one end of the latch, so that the hydraulic rod can drive the latch to rotate, thereby driving the supporting arm to lift or lower the wheel.

[0015] Preferably, two mutually parallel groove rails are provided on the upper surface of the mobile chassis, which are used to guide and limit the forward and backward movement of the wheel changing frame on the rails to prevent the wheel changing frame from lateral displacement during movement.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model solves the technical problem that the wheel cannot be directly transported to the installation position manually or by a reverse chain during the replacement of the wheel of the bridge crane in the prior art by arranging a wheel-changing frame chassis, a mobile chassis and a wheel-changing frame body, which cooperate with each other, and realizes the automatic operation of the whole process of wheel removal and installation, completely replaces the traditional manual operation mode, greatly reduces the labor intensity of the operators, and eliminates potential safety hazards; in the wheel-changing frame chassis, the lower surface of the crossbeam located at the outermost side of the wheel-changing frame chassis is provided with a protrusion for limiting the wheel-changing frame chassis, which can be firmly overlapped on the track; the longitudinal beam is U-shaped steel, the mobile chassis slides in the guide rail, and the longitudinal movement hydraulic rod drives the mobile chassis to move forward and backward along the guide rail, ensuring the accurate positioning and smooth movement of the wheel-changing frame on the track; the transverse movement hydraulic rod arranged on the movable support frame and the concave arc design of the end of the support arm can accurately remove or install the wheel from the bearing seat, and the hinged design of the latch and the lifting hydraulic rod enables the support arm to reliably lift and lower the wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic structural diagram of a preferred embodiment of the utility model.

[0019] In the figure: 1. wheel changing frame chassis; 2. mobile chassis; 3. longitudinal movement hydraulic rod; 4. lateral movement hydraulic rod; 5. lifting hydraulic rod; 6. wheel support arm. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without making creative work based on the embodiments of the utility model shall fall within the scope of protection of the utility model.

[0021] like Figure 1 As shown:

[0022] A wheel-changing frame for a bridge crane with a lifting hydraulic rod comprises a wheel-changing frame chassis 1, a mobile chassis 2 and a wheel-changing frame body; wherein:

[0023] The wheel changing frame chassis 1 includes two longitudinal beams parallel to each other and a plurality of cross beams connected between the two longitudinal beams; the cross beams are used to strengthen the overall structural rigidity of the chassis so that the chassis will not be significantly deformed when bearing the weight of the wheel; the longitudinal beam is a U-shaped guide rail, which is used to support the mobile chassis 2 located on the wheel changing frame chassis 1 to slide back and forth along the guide rail; the lower surface of the outermost cross beam of the wheel changing frame chassis 1 is provided with a protrusion for limiting the wheel changing frame chassis 1, which is used to achieve a stable overlap of the wheel changing frame chassis 1 on the track where the wheel to be replaced is located.

[0024] The mobile chassis 2 is embedded between two longitudinal beams, and two parallel groove tracks are provided on the upper surface of the mobile chassis 2, which are used to guide and limit the forward and backward movement of the wheel changing frame body on the track to prevent the wheel changing frame body from lateral displacement during movement; a longitudinal motion hydraulic rod 3 is installed between the mobile chassis 2 and the wheel changing frame chassis 1; the mobile chassis 2 can be driven to move forward and backward on the track by extending and retracting the longitudinal motion hydraulic rod 3.

[0025] The wheel-changing frame body includes a movable support frame, a lateral movement hydraulic rod 4 is provided between the movable support frame and the wheel-changing frame chassis 1, a protrusion is provided at the bottom of the movable support frame to cooperate with the groove track of the movable chassis 2, the movable support frame is connected to the wheel support arm 6 through a latch, and the upper surface of the end of the wheel support arm 6 is set to an inwardly concave arc, so that the end of the wheel support arm 6 can fit tightly against the outer arc surface of the wheel bearing seat; a lifting hydraulic rod 5 is installed between the latch and the movable support frame; the piston rod end of the lifting hydraulic rod 5 is hinged to one end of the latch, so that the hydraulic rod can drive the latch to rotate, thereby driving the support arm to lift or lower the wheel; a toothed shaft is provided on the latch, so that the latch is more stable and reliable when rotating.

[0026] How to replace the wheel:

[0027] 1. Remove the wheel:

[0028] 1) Place the wheel-removing vehicle on the track where the wheel to be replaced is located, and use the protrusion of the outermost crossbeam to limit the position, so that the wheel-changing frame chassis 1 is firmly overlapped on the track where the wheel to be replaced is located;

[0029] 2) Operate the longitudinal hydraulic rod 3 to move the wheel changing frame body to the center of the track;

[0030] 3) Operate the lateral movement hydraulic rod 4 to move the wheel changing frame body to below the wheel, and align the concave arc at the end of the wheel support arm 6 with the wheel bearing seat;

[0031] 4) Operate the lifting hydraulic rod 5 to make the wheel support arm 6 lift the wheel until the lower edge of the wheel is above the track surface;

[0032] 5) Operate the lifting hydraulic rod 5 and the lateral movement hydraulic rod 4 to remove the wheel from the installation position on the track;

[0033] 6) Operate the longitudinal movement hydraulic rod 3 to move the wheel changing frame body to the placement area;

[0034] 7) Operate the lifting hydraulic rod 5 and the lateral movement hydraulic rod 4 to place the wheel into the placement area;

[0035] 2. Install the wheels:

[0036] 1) Operate the lifting hydraulic rod 5 and the lateral movement hydraulic rod 4 of the wheel changing frame to lift the wheel to be installed with the wheel support arm 6;

[0037] 2) Operate the longitudinal hydraulic rod 3 to move the wheel changing frame body to the center of the track;

[0038] 3) Operate the lateral movement hydraulic rod 4 to move the wheel changing frame body to the wheel installation position;

[0039] 4) Operate the lifting hydraulic rod 5 to place the wheel from the wheel changing frame to the installation position;

[0040] 5) Return the wheel changing frame body and remove the wheel changing frame to complete the installation.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wheel-changing frame for a bridge crane with a lifting hydraulic rod, comprising a wheel-changing frame chassis (1), a mobile chassis (2) and a wheel-changing frame body; the wheel-changing frame chassis (1) comprises two longitudinal beams parallel to each other and a plurality of transverse beams connected between the two longitudinal beams; the longitudinal beams are U-shaped steels; the mobile chassis (2) is embedded between the two longitudinal beams, a groove track is provided on the upper surface of the mobile chassis (2), and a longitudinal moving hydraulic rod (3) is installed between the mobile chassis (2) and the wheel-changing frame chassis (1); the characteristics are: The wheel-changing frame body comprises a movable support frame, a lateral movement hydraulic rod (4) is provided between the movable support frame and the wheel-changing frame chassis (1), a protrusion matching the groove track is provided at the bottom of the movable support frame, the movable support frame is connected to the wheel support arm (6) via a latch, and a lifting hydraulic rod (5) is installed between the latch and the movable support frame; A protrusion for limiting the position of the wheel-changing frame chassis (1) is provided on the lower surface of the crossbeam located at the outermost side of the wheel-changing frame chassis (1).

2. The wheel-changing frame for a bridge crane with a lifting hydraulic rod according to claim 1, characterized in that: A toothed shaft is provided on the latch pin.

3. The wheel-changing frame for a bridge crane with a lifting hydraulic rod according to claim 1, characterized in that: The upper surface of the end of the wheel support arm (6) is arranged to be in a concave arc shape.

4. The wheel-changing frame for a bridge crane with a lifting hydraulic rod according to claim 1, characterized in that: The piston rod end of the lifting hydraulic rod (5) is hinged to one end of the latch pin.

5. The wheel-changing frame for a bridge crane with a lifting hydraulic rod according to claim 1, characterized in that: Two mutually parallel groove rails are provided on the upper surface of the mobile chassis (2).

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