Large-scale shaft wheel dismounting and mounting device

Abstract

The utility model discloses a large-scale shaft wheel dismounting and mounting device. Comprising a main hydraulic cylinder and a rectangular position-variable base, the horizontal main hydraulic cylinder is installed at one end of the position-variable base through a fixing base, a pair of fixed stand columns and a plurality of pairs of movable stand columns are arranged on the position-variable base, the fixed stand columns are close to the fixing base, and U-shaped grooves are formed in the top ends of the movable stand columns and the fixed stand columns. A movable upper beam is arranged in the U-shaped grooves of the movable stand column and the fixed stand column on the same side in a penetrating mode and sleeved with a positioning sleeve, and the positioning sleeve is tightly attached to one side face of the movable stand column or the fixed stand column. A positioning rod is arranged above the movable upper beam, and the bottom of the positioning rod is fixedly connected with a positioning plate used for positioning the positioning sleeve. A wheel is placed between the movable stand columns and the main hydraulic cylinder, the outer end of the wheel abuts against the movable stand columns, the main hydraulic cylinder presses a shaft into a shaft hole of the wheel, assembly efficiency is improved, labor intensity is reduced, and the movable stand columns can adapt to disassembly and assembly of wheels and special-shaped workpieces with different diameters and lengths.

Description

Technical Field

[0001] The utility model relates to tooling, in particular to a large-scale shaft wheel disassembly and assembly device. Background Art

[0002] Mining machinery often uses large shaft parts (length greater than 6.3 meters) and wheels that match them. The wheel diameter is within 1.6 meters. When assembling the shaft and the wheel, interference fit is used. The interference fit is large, assembly is difficult, and labor intensity is high. When hot-fitting is used, the wheel needs to be heated, which is time-consuming, labor-intensive, and inefficient. When inspecting, the shaft and the wheel need to be disassembled, which is very difficult. Utility Model Content

[0003] The utility model aims to solve the above technical problems, thereby providing a large-scale shaft wheel disassembly and assembly device to improve the efficiency of assembly and disassembly.

[0004] The utility model solves the technical problem and adopts the following technical solution:

[0005] A large-scale shaft wheel disassembly and assembly device comprises a main hydraulic cylinder and a rectangular variable position base. The horizontal main hydraulic cylinder is installed at one end of the variable position base through a fixed seat. A pair of fixed columns and multiple pairs of movable columns are arranged on the variable position base. The fixed columns are close to the fixed seats. The tops of the movable columns and the fixed columns are both provided with U-shaped grooves. The U-shaped grooves of the movable columns and the fixed columns on the same side are penetrated with movable upper beams. A positioning sleeve is sleeved on the movable upper beam. The positioning sleeve is closely attached to one side of the movable column or the fixed column.

[0006] A positioning rod is arranged above the movable upper beam, and a positioning plate for positioning the positioning sleeve is fixedly connected to the bottom of the positioning rod.

[0007] Compared with the prior art, the utility model adopting the above technical solution has the following beneficial effects:

[0008] 1) Place the wheel between the movable column and the main hydraulic cylinder, the outer end of the wheel is connected to the movable column, and the main hydraulic cylinder presses the shaft into the shaft hole of the wheel, which improves assembly efficiency and reduces labor intensity;

[0009] 2) Multiple pairs of movable columns can adapt to the disassembly and assembly of wheels of different diameters and lengths and special-shaped workpieces.

[0010] Further, the optimization scheme of the utility model is:

[0011] A plurality of pairs of mounting holes are symmetrically arranged on the two longitudinal beams of the variable position base, and the movable columns are inserted into the mounting holes.

[0012] The positioning sleeve includes a first collar, a second collar and a connecting plate. The first collar and the second collar are concentrically arranged. The first collar and the second collar are connected by the connecting plate. The outer diameter of the first collar is larger than that of the second collar. The first collar is in close contact with the movable column or the fixed column.

[0013] A clamping groove is formed at the lower end of the positioning plate of the positioning rod, and the clamping groove is clamped with the connecting plate of the positioning sleeve.

[0014] The main hydraulic cylinder is slidably connected with the fixed seat through a sliding pair, and the variable-position base is provided with a secondary hydraulic cylinder for jacking up the main hydraulic cylinder.

[0015] The movable column includes an upper column body and a plug-in part. The plug-in part is inserted into the installation hole of the variable-position base. A horizontal baffle is fixedly connected between the upper column body and the plug-in part. A rib plate is fixedly connected to the side of the upper column body far from the main hydraulic cylinder, and the lower end of the rib plate is fixedly connected to the horizontal baffle.

[0016] A hoisting mechanism is arranged between the positioning rods on both sides. The hoisting mechanism includes a lifting ring, a lower hinge assembly, a lower adjusting rod, an internal thread sleeve, an upper adjusting rod, an upper hinge assembly and a roller assembly. The lifting ring is semicircular with the open end facing upward. The two sides of the lifting ring are respectively connected to the lower adjusting rod through the lower hinge assembly. The lower adjusting rod is connected to the upper adjusting rod through the internal thread sleeve. The upper adjusting rod is connected to the roller assembly through the upper hinge assembly. The roller assembly is in rolling connection with the movable upper beam.

[0017] The roller assembly includes an upper roller, a lower roller, a wheel shaft and a wheel frame plate. The tread surfaces of the upper roller and the lower roller are concave arcs. The upper roller and the lower roller are respectively placed at the upper and lower parts of the movable upper beam. The upper roller and the lower roller are respectively rotatably connected to the wheel frame plate through the wheel shaft. The lower hinge assembly is connected to the wheel frame plate.

[0018] Both the upper hinge assembly and the lower hinge assembly are ear seats and pin shafts.

[0019] Lifting lugs are respectively fixedly connected to both sides of the upper part of the movable column. Description of the Drawings

[0020] Figure 1 It is the front view of the first embodiment of the present invention;

[0021] Figure 2 It is Figure 1 the top view of;

[0022] Figure 3 It is Figure 1 the left view of;

[0023] Figure 4 It is Figure 1 the right view of;

[0024] Figure 5The front view of the movable column in the first embodiment of the present utility model;

[0025] Figure 6 is Figure 5 the left view of;

[0026] Figure 7 The front view of the connection between the movable upper beam and the positioning rod in the first embodiment of the present utility model;

[0027] Figure 8 is Figure 7 the right view of;

[0028] Figure 9 The front view of the positioning sleeve;

[0029] Figure 10 is Figure 9 the longitudinal sectional view of;

[0030] Figure 11 The schematic diagram of the second embodiment of the present utility model;

[0031] Figure 12 The front view of the third embodiment of the present utility model;

[0032] Figure 13 The front view of the lifting mechanism in the third embodiment of the present utility model;

[0033] Figure 14 The schematic diagram of the roller assembly of the lifting mechanism.

[0034] In the figure: variable-position base 1; longitudinal beam 1-1; cross beam 1-2; fixed seat 2; sliding pair 2-1; main hydraulic cylinder 3; fixed column 4; movable column 5; upper column body 5-1; insertion part 5-2; horizontal baffle 5-3; rib plate 5-4; lifting lug 5-5; movable upper beam 6; positioning sleeve 7; first collar 7-1; second collar 7-2; connecting plate 7-3; positioning rod 8; positioning plate 9; reinforcing plate 9-1; auxiliary hydraulic cylinder 10; lifting ring 11; lower hinge assembly 12; lower adjusting rod 13; internal thread sleeve 14; upper adjusting rod 15; upper hinge assembly 16; roller assembly 17; upper roller 17-1; lower roller 17-2; wheel axle 17-3; wheel frame plate 17-4. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0036] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention. Embodiment 1

[0037] See also Figures 1-4 The present embodiment provides a large-scale axle wheel disassembly and assembly device, which is mainly composed of a variable position base 1, a fixed base 2, a main hydraulic cylinder 3, a fixed column 4 and a movable column 5. The variable position base 1 is a rectangular welded component, which is a frame structure and is arranged horizontally. It is composed of two longitudinal beams 1-1 and a plurality of cross beams 1-2 placed between the longitudinal beams. A fixed base 2 is installed on the upper part of the left end of the variable position base 1. The fixed base 2 is a welded component. The main hydraulic cylinder 3 is installed on the inner side of the fixed base 2. The main hydraulic cylinder 3 is arranged horizontally, and the outer end of its cylinder body is connected to the fixed base 2 by bolts. In this embodiment, the pressure of the main hydraulic cylinder 3 is 500 tons. A support plate can also be installed between the inner end of the cylinder body of the main hydraulic cylinder 3 and the variable position base 1.

[0038] The two longitudinal beams 1-1 on the inner side of the fixed seat 2 are symmetrically welded with fixed columns 4, which are welded components. The two fixed columns 4 are located on both sides of the main hydraulic cylinder 3. Three pairs of mounting holes are symmetrically opened on the two longitudinal beams 1-1 on the left side of the fixed column 4, and the movable column 5 is placed in the mounting holes. The movable column 5 is a welded component, which is composed of an upper column 5-1 and a plug-in portion 5-2. The plug-in portion 5-2 is located at the lower end of the upper column 5-1. A horizontal baffle 5-3 is fixedly connected between the upper column 5-1 and the plug-in portion 5-2. The horizontal baffle 5-3 is placed on the longitudinal beam 1-1 to position the movable column 5 in the height direction. A rib plate 5-4 is welded on the side of the upper column 5-1 away from the main hydraulic cylinder 3. The lower end of the rib plate 5-4 is welded to the horizontal baffle 5-3, and the plug-in portion 5-2 is inserted into the mounting hole. The movable column 5 can adapt to the installation and removal of shafts and wheels of different lengths. In order to facilitate the lifting and displacement of the movable column 5, lifting ears 5-5 are welded on both sides of the upper part of the movable column 5. When the shaft and wheel are assembled, the wheel is placed on the longitudinal beam 1-1, and the rear end of the wheel is connected to the two movable columns 5. The shaft holes of the shaft and the wheel are aligned, and the hydraulic system is started. The piston rod of the main hydraulic cylinder 3 extends to press the shaft into the shaft hole.

[0039] U-shaped grooves 4-1 are provided at the tops of the fixed vertical columns 4 and the movable vertical columns 5. An upper movable beam 6 is inserted into the U-shaped grooves 4-1 of the fixed vertical column 4 and the movable vertical column 5 on the same side. The cross-section of the upper movable beam 6 is circular. A positioning sleeve 7 is sleeved on the upper movable beam 6. One positioning sleeve 7 is arranged on the side of the fixed vertical column 4 close to the fixed seat 2, and one positioning sleeve 7 is arranged on the side of each movable vertical column 5 away from the main hydraulic cylinder 3. The positioning sleeve 7 is mainly composed of a first collar 7-1, a second collar 7-2 and a connecting plate 7-3. The first collar 7-1 and the second collar 7-2 are concentrically arranged. The first collar 7-1 and the second collar 7-2 are connected by four connecting plates 7-3. The outer diameter of the first collar 7-1 is larger than the outer diameter of the second collar 7-2. The first collar 7-1 is in close contact with the movable vertical column 5 or the fixed vertical column 4. The upper movable beam 6 increases the overall stiffness and stability of the fixed vertical column 4 and the movable vertical column 5.

[0040] A positioning rod 8 is provided above the upper movable beam 6. The positioning rod 8 is arranged parallel to the upper movable beam 6. A positioning plate 9 is welded to the bottom of the positioning rod. The positioning plate 9 is composed of two pieces and is parallel. A gap is left between the two positioning plates 9. The two positioning plates 9 are clamped with the connecting plate 7-3 of the positioning sleeve 7 and are in close contact with the first collar 7-1. The positioning rod 8 and the positioning plate 9 limit the upper end of the movable vertical column 5 through the positioning sleeve 7, improve the stiffness of the movable vertical column 5, and prevent the movable vertical column 5 from deforming. For the convenience of hoisting the positioning rod 8, a lifting plate is welded to the middle of the positioning rod 8. To increase the strength of the positioning plate 9 on one side of the fixed vertical column 4, a triangular reinforcing plate 9-1 is welded to the inner side of the positioning plate 9. Embodiment 2

[0041] To facilitate the adjustment of the height of the main hydraulic cylinder 3 to adapt to the disassembly and assembly of wheels and shafts with different center heights, a sliding pair 2-1 is arranged between the main hydraulic cylinder 3 and the fixed seat 2. The sliding pair 2-1 is a guide rail and a slider. The guide rail is connected to the fixed seat by bolts. The slider is slidably connected to the guide rail. The main hydraulic cylinder 3 is connected to the slider through a seat plate. The variable-position base 2 is provided with two vertically arranged auxiliary hydraulic cylinders 10. A V-shaped block is installed on the piston rod of the auxiliary hydraulic cylinder 10. The V-shaped block supports the cylinder block of the main hydraulic cylinder 3. The auxiliary hydraulic cylinder 10 is used to lift the main hydraulic cylinder 3 so as to adjust the height of the main hydraulic cylinder 3. Embodiment 3

[0042] There is a lifting mechanism between the two positioning rods 8. The lifting mechanism is mainly composed of a lifting ring 11, a lower hinge assembly 12, a lower adjusting rod 13, an internal thread sleeve 14, an upper adjusting rod 15, an upper hinge assembly 16 and a roller assembly 17. The lifting ring 11 is semi-circular with the open end facing upward. The two sides of the upper port of the lifting ring 11 are respectively connected to the lower adjusting rod 13 through the lower hinge assembly 12. The lower hinge assembly 12 uses an ear seat and a pin shaft. The ear seat is welded to the lifting ring 11, and the lower adjusting rod 13 is hinged to the ear seat through the pin shaft. The lower adjusting rod 13 is a threaded rod, and the lower adjusting rod 13 is connected to the upper adjusting rod 15 through the internal thread sleeve 14. The upper adjusting rod 15 is a threaded rod, and the helix direction of the thread of the upper adjusting rod 15 is opposite to that of the lower adjusting rod 13. The upper adjusting rod 15 is connected to the roller assembly 17 through the upper hinge assembly 16.

[0043] The roller assembly 17 is mainly composed of an upper roller 17-1, a lower roller 17-2, a wheel shaft 17-3 and a wheel frame plate 17-4. The treads of the upper roller 17-1 and the lower roller 17-2 are concave arcs. The upper roller 17-1 and the lower roller 17-2 are respectively placed on the upper and lower parts of the movable upper beam 6 and are in rolling connection with it. Wheel frame plates 17-4 are respectively arranged on both sides of the upper roller 17-1 and the lower roller 17-2. The upper roller 17-1 and the lower roller 17-2 are respectively rotationally connected to the wheel frame plate 17-4 through the wheel shaft 17-3. The upper hinge assembly 16 uses an ear seat and a pin shaft. The ear seat is welded to the inner wheel frame plate 17-4, and the upper adjusting rod 15 is hinged to the ear seat through the pin shaft.

[0044] When assembling the shaft and the wheel, two sets of lifting mechanisms are used. The shaft is placed on the two lifting rings 11. Rotate the internal thread sleeve 14 to adjust the center height of the shaft and make it horizontal, so that the axis of the shaft coincides with the axes of the wheel and the main hydraulic cylinder 3 respectively. Start the hydraulic system. The piston rod of the main hydraulic cylinder 3 extends. The roller assembly 17 rolls on the movable upper beam 6 along with the shaft, and presses the shaft into the shaft hole of the wheel. The lifting mechanism improves the centering accuracy and work efficiency.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A large-scale shaft wheel disassembly and assembly device, comprising a main hydraulic cylinder and a rectangular variable position base, wherein the horizontal main hydraulic cylinder is mounted on one end of the variable position base through a fixed seat, and is characterized in that: The variable base is provided with a pair of fixed columns and multiple pairs of movable columns, the fixed columns are close to the fixed seats, the tops of the movable columns and the fixed columns are provided with U-shaped grooves, the U-shaped grooves of the movable columns and the fixed columns on the same side are provided with movable upper beams, and the movable upper beams are provided with positioning sleeves, which are closely attached to one side of the movable column or the fixed column; A positioning rod is arranged above the movable upper beam, and a positioning plate for positioning the positioning sleeve is fixedly connected to the bottom of the positioning rod.

2. The large-scale shaft wheel disassembly and assembly device according to claim 1 is characterized in that: A plurality of pairs of mounting holes are symmetrically arranged on the two longitudinal beams of the variable position base, and the movable columns are inserted into the mounting holes.

3. The large-scale shaft wheel disassembly and assembly device according to claim 1, characterized in that: The positioning sleeve comprises a first ring, a second ring and a connecting plate. The first ring and the second ring are arranged concentrically and connected by the connecting plate. The outer diameter of the first ring is greater than the outer diameter of the second ring. The first ring is tightly attached to the movable column or the fixed column.

4. The large-scale shaft wheel disassembly and assembly device according to claim 1, characterized in that: A clamping groove is provided at the lower end of the positioning plate of the positioning rod, and the clamping groove is clamped with the connecting plate of the positioning sleeve.

5. The large-scale shaft wheel disassembly and assembly device according to claim 1, characterized in that: The main hydraulic cylinder is slidably connected with the fixed seat through a sliding pair, and the variable position base is installed with a secondary hydraulic cylinder for lifting the main hydraulic cylinder.

6. The large-scale shaft wheel disassembly and assembly device according to claim 1, characterized in that: The movable column includes an upper column and a plug-in part, the plug-in part is inserted into the mounting hole of the variable base, a horizontal baffle is fixedly connected between the upper column and the plug-in part, a rib plate is fixedly connected to the side of the upper column away from the main hydraulic cylinder, and the lower end of the rib plate is fixedly connected to the horizontal baffle.

7. The large-scale shaft wheel disassembly and assembly device according to claim 1, characterized in that: A lifting mechanism is provided between the positioning rods on both sides, and the lifting mechanism includes a lifting ring, a lower hinge assembly, a lower adjustment rod, an internally threaded sleeve, an upper adjustment rod, an upper hinge assembly and a roller assembly. The lifting ring is semicircular with an open end facing upward. The two sides of the lifting ring are respectively connected to the lower adjustment rod through the lower hinge assembly, the lower adjustment rod is connected to the upper adjustment rod through the internally threaded sleeve, the upper adjustment rod is connected to the roller assembly through the upper hinge assembly, and the roller assembly is rollingly connected to the movable upper beam.

8. The large-scale shaft wheel disassembly and assembly device according to claim 7, characterized in that: The roller assembly includes an upper roller, a lower roller, a wheel axle and a wheel frame plate. The treads of the upper roller and the lower roller are concave arcs. The upper roller and the lower roller are respectively placed on the upper and lower parts of the movable upper beam. The upper roller and the lower roller are respectively rotatably connected to the wheel frame plate through the wheel axle, and the lower hinge assembly is connected to the wheel frame plate.

9. The large-scale shaft wheel disassembly and assembly device according to claim 7, characterized in that: The upper hinge assembly and the lower hinge assembly are both ear seats and pin shafts.

10. The large-scale shaft wheel disassembly and assembly device according to claim 1, characterized in that: Both sides of the upper part of the movable column are respectively fixed with lifting ears.

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