Sun gear press-fitting equipment

Abstract

The utility model discloses sun gear press-fitting equipment, and relates to the technical field of press-fitting equipment, the sun gear press-fitting equipment comprises a rack, the opposite sides of the rack are provided with transmission belts, the rear side of the rack is fixedly provided with a press-fitting assembly, the upper surface of the rack is fixedly provided with a heating assembly and a cooling assembly, the heating assembly is located on the left side of the cooling assembly, and the cooling assembly is located on the right side of the rack. A driving assembly is fixedly installed on the rear side of the machine frame, and the press-fitting assembly comprises a first support, two air cylinders and four press-fitting blocks. The two air cylinders work simultaneously to drive the lifting plate to move downwards, the lifting plate drives the four press-fitting blocks and the press-fitting columns to move downwards at the same time, then press-fitting can be conducted on a plurality of sun gears, press-fitting efficiency of the sun gears is improved, the two air cylinders are arranged, the phenomenon of insufficient power is avoided, when the press-fitting columns need to be disassembled and assembled, the press-fitting blocks are rotated, and the press-fitting columns can be disassembled and assembled conveniently. And under the thread action of the stud and the threaded hole, the stud is separated from the lifting plate, and the press-fitting column is convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of press-fitting equipment, in particular to a sun gear press-fitting equipment. Background Art

[0002] At present, the installation of the sun gear in equipment such as planetary gear transmissions is often achieved through interference fit of the pin shaft, and a press-fitting device is usually used in the press-fitting process of the sun gear to achieve the press-fitting operation of the sun gear.

[0003] Chinese patent document CN102825452B discloses an intelligent sun gear press-fitting device. By using the pressure and infrared sensors in the press, the programmable logic controller can achieve precise control, so that the initial stage of installing the planetary reducer can be fast and accurate. The coordinated use of the heater and the refrigerator can tightly combine the shaft and the sun gear without losing accuracy. The work that may require two or more devices to complete is completed on one device, which improves production efficiency and saves costs.

[0004] The existing technology has the following problems:

[0005] During the process of pressing the sun gear, the above-mentioned pressing equipment only has one press head, so only one sun gear can be pressed at a time, resulting in low working efficiency. In addition, the existing pressing equipment uses a hydraulic cylinder for hydraulic pressing, which is very prone to power shortage and is inconvenient to disassemble the press head, making it inconvenient to maintain or replace it. Utility Model Content

[0006] The utility model provides a sun gear press-fitting device to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] A sun gear press-fitting device comprises a frame, a conveyor belt is arranged on the opposite side of the frame, a press-fitting assembly is fixedly installed on the rear side of the frame, a heating assembly and a cooling assembly are fixedly installed on the upper surface of the frame, and the heating assembly is located on the left side of the cooling assembly, a driving assembly is fixedly installed on the rear side of the frame, the press-fitting assembly comprises a bracket one, two cylinders and four press-fitting blocks, the front side of the bracket one is fixedly installed on the rear side of the frame, a press-fitting column is fixedly installed on the lower surface of the press-fitting block, the cooling assembly comprises a bracket two, the lower surface of the bracket two is fixedly installed on the upper surface of the frame, and the bracket two is a U-shaped structure, and four cooling fans distributed in a linear array are fixedly installed on the lower surface of the top of the bracket two by screws.

[0009] Preferably, three partitions distributed in a linear array are fixedly mounted on the outer side wall of the conveyor belt, and the partitions are in a straight groove structure.

[0010] Preferably, the bracket is L-shaped, the lower surfaces of the two cylinders are fixedly installed at the front and rear positions of the top upper surface of the bracket, and the output ends of the two cylinders pass through the bracket and are fixedly installed with a lifting plate.

[0011] Preferably, four threaded holes distributed in a linear array are formed on the lower surface of the lifting plate, a stud is fixedly mounted on the upper surface of the press-fit block, and the outer side wall of the stud is threadedly connected to the inner side wall of the threaded hole.

[0012] Preferably, a ventilation slot is provided on the upper surface of the second bracket, and the cross section of the ventilation slot is a T-shaped structure.

[0013] Preferably, a dustproof net is clamped on the inner side wall of the ventilation slot, and the cross-section of the dustproof net is a T-shaped structure.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] 1. The utility model provides a sun gear press-fitting device, which drives a lifting plate downward by two cylinders working at the same time, and the lifting plate drives four pressing blocks and pressing columns downward at the same time, so that multiple sun gears can be press-fitted, thereby improving the pressing efficiency of the sun gear. By setting two cylinders, the phenomenon of insufficient power is avoided. When it is necessary to disassemble and assemble the pressing column, the pressing block is rotated, and the threaded action of the stud and the threaded hole separates the stud from the lifting plate, which is convenient for disassembly and assembly of the pressing column, thereby facilitating maintenance or replacement of the pressing column.

[0016] 2. The utility model provides a solar gear press-fitting device, which uses multiple cooling fans to work simultaneously to blow cold air to the surface of the solar gear to cool it down and prevent the pressed solar gear from deformation. The dustproof net provides dustproof protection for the ventilation slots to prevent foreign matter or dust from falling into the cooling fan and affecting its normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the press-fit assembly of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the lifting plate of the utility model;

[0021] Figure 5 This is a schematic diagram of the cooling assembly structure of the utility model;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the bracket of the utility model.

[0023] In the figure: 1. rack; 2. heating component; 3. cooling component; 31. bracket 2; 32. cooling fan; 33. dust screen; 34. ventilation slot; 4. press-fit component; 41. bracket 1; 42. cylinder; 43. lifting plate; 44. press-fit column; 45. press-fit block; 46. stud; 47. threaded hole; 5. conveyor belt; 6. partition; 7. drive component. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-Figure 6 As shown, a sun gear press-fitting device comprises a frame 1, a conveyor belt 5 is arranged on the opposite side of the frame 1, a press-fitting assembly 4 is fixedly installed on the rear side of the frame 1, a heating assembly 2 and a cooling assembly 3 are fixedly installed on the upper surface of the frame 1, and the heating assembly 2 is located on the left side of the cooling assembly 3, a driving assembly 7 is fixedly installed on the rear side of the frame 1, the press-fitting assembly 4 comprises a bracket 1 41, two cylinders 42 and four press-fitting blocks 45, the front side of the bracket 1 41 is fixedly installed on the rear side of the frame 1, a press-fitting column 44 is fixedly installed on the lower surface of the press-fitting block 45, the cooling assembly 3 comprises a bracket 2 31, the lower surface of the bracket 2 31 is fixedly installed on the upper surface of the frame 1, and the bracket 2 31 is a U-shaped structure, and four cooling fans 32 distributed in a linear array are fixedly installed on the lower surface of the top of the bracket 2 31 by screws.

[0026] The driving assembly 7 includes a motor and a driving rod.

[0027] The heating assembly 2 comprises a bracket 3 and an electric heating tube.

[0028] The input shaft is placed on the sun gear tire and is transferred to the bottom of the heating component 2 for heating through the transmission belt 5. After heating, the hole on the input shaft expands and is transferred to the bottom of the lifting plate 43. The two cylinders 42 work at the same time to drive the lifting plate 43 to move downward. The lifting plate 43 also drives the four pressing blocks 45 and the pressing columns 44 to move downward, so that the raised shaft on the sun gear tire can be pressed into the hole of the input shaft, and multiple sun gears can be press-fitted, thereby improving the press-fitting efficiency of the sun gear. The transmission belt 5 transfers the press-fitted sun gear to the bottom of the bracket 2 31, and multiple cooling fans 32 work at the same time to blow cold air to the surface of the sun gear, quickly cooling the input shaft to prevent it from deformation, thereby completing the press-fitting of the sun gear. Two cylinders 42 are set to avoid the phenomenon of insufficient power.

[0029] like Figure 1 , Figure 2 As shown, three partitions 6 distributed in a linear array are fixedly installed on the outer side wall of the conveyor belt 5, and the partitions 6 are in a straight groove structure.

[0030] By limiting the position of the sun gear through the partition plate 6, the sun gear can be aligned with the press-fitting column 44, thereby improving the press-fitting accuracy and avoiding deviation.

[0031] like Figure 2 , Figure 3 As shown, the bracket 41 is L-shaped, and the lower surfaces of the two cylinders 42 are fixedly installed at the front and rear positions of the top upper surface of the bracket 41 respectively, and the output ends of the two cylinders 42 pass through the bracket 41 and are fixedly installed with a lifting plate 43.

[0032] A support 41 is provided to support the cylinder 42, and the cylinder 42 drives the lifting plate 43 to move up and down, thereby driving the pressing block 45 and the pressing column 44 to move up and down.

[0033] like Figure 2-Figure 4 As shown, the lower surface of the lifting plate 43 is provided with four threaded holes 47 distributed in a linear array, and the upper surface of the press-fit block 45 is fixedly mounted with a stud 46 , and the outer side wall of the stud 46 is threadedly connected with the inner side wall of the threaded hole 47 .

[0034] When the press-fitting column 44 needs to be disassembled, the press-fitting block 45 is rotated, and the stud 46 and the threaded hole 47 are used to separate the stud 46 from the lifting plate 43, so that the press-fitting column 44 can be disassembled and assembled, thereby facilitating the maintenance or replacement of the press-fitting column 44.

[0035] like Figure 5 , Figure 6 As shown, a ventilation slot 34 is formed on the upper surface of the second bracket 31, and the cross section of the dustproof net 33 is T-shaped. The dustproof net 33 is clamped on the inner side wall of the ventilation slot 34, and the cross section of the ventilation slot 34 is T-shaped.

[0036] The ventilation slots 34 are provided to realize the circulation of air, and the dustproof net 33 is used to protect the ventilation slots 34 from dust, thereby preventing foreign matter or dust from falling into the cooling fan 32 and affecting its normal operation.

[0037] The working principle of the present invention is as follows: the input shaft is placed on the sun gear, and is transmitted to the bottom of the heating component 2 by the transmission belt 5 for heating. After heating, the hole on the input shaft expands and becomes larger, and is transmitted to the bottom of the lifting plate 43. The two cylinders 42 work at the same time to drive the lifting plate 43 to move downward. The lifting plate 43 simultaneously drives the four pressing blocks 45 and the pressing columns 44 to move downward, so that the raised shaft on the sun gear tire can be pressed into the hole of the input shaft, and multiple sun gears can be press-fitted, thereby improving the press-fitting efficiency of the sun gears. The transmission belt 5 transmits the pressed sun gear to the bottom of the bracket 2 31, and multiple cooling fans 32 work at the same time. The operation is to blow cold air to the surface of the sun gear, quickly cool down the input shaft and prevent it from deformation, thereby completing the press-fitting of the sun gear. Two cylinders 42 are set to avoid the phenomenon of insufficient power. When it is necessary to disassemble and assemble the press-fitting column 44, the press-fitting block 45 is rotated, and the threaded action of the stud 46 and the threaded hole 47 separates the stud 46 from the lifting plate 43, which is convenient for disassembly and assembly of the press-fitting column 44, thereby facilitating the maintenance or replacement of the press-fitting column 44. The dustproof net 33 has a dustproof protection effect on the ventilation slot 34 to prevent foreign matter or dust from falling into the cooling fan 32 and affecting its normal operation.

[0038] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A sun gear press-fitting device, comprising a frame (1), characterized in that: A conveyor belt (5) is arranged on the opposite side of the frame (1); a press-fitting assembly (4) is fixedly installed on the rear side of the frame (1); a heating assembly (2) and a cooling assembly (3) are fixedly installed on the upper surface of the frame (1), and the heating assembly (2) is located on the left side of the cooling assembly (3); a driving assembly (7) is fixedly installed on the rear side of the frame (1); the press-fitting assembly (4) comprises a bracket 1 (41), two cylinders (42) and four press-fitting blocks (45); the front side of the bracket 1 (41) is fixedly installed on the rear side of the frame (1); a press-fitting column (44) is fixedly installed on the lower surface of the press-fitting block (45); the cooling assembly (3) comprises a bracket 2 (31); the lower surface of the bracket 2 (31) is fixedly installed on the upper surface of the frame (1); the bracket 2 (31) is in a U-shaped structure; four cooling fans (32) distributed in a linear array are fixedly installed on the lower surface of the top of the bracket 2 (31) by screws.

2. The sun gear press-fitting device according to claim 1, characterized in that: Three partitions (6) distributed in a linear array are fixedly mounted on the outer side wall of the conveyor belt (5), and the partitions (6) are in a straight groove structure.

3. The sun gear press-fitting device according to claim 1, characterized in that: The bracket one (41) is L-shaped, and the lower surfaces of the two cylinders (42) are fixedly installed at the front and rear positions of the upper surface of the top of the bracket one (41), and the output ends of the two cylinders (42) pass through the bracket one (41) and are fixedly installed with a lifting plate (43).

4. The sun gear press-fitting device according to claim 3, characterized in that: The lower surface of the lifting plate (43) is provided with four threaded holes (47) distributed in a linear array, and the upper surface of the press-fit block (45) is fixedly mounted with a stud (46), and the outer wall of the stud (46) is threadedly connected to the inner wall of the threaded hole (47).

5. The sun gear press-fitting device according to claim 1, characterized in that: The upper surface of the second bracket (31) is provided with a ventilation slot (34), and the cross section of the ventilation slot (34) is a T-shaped structure.

6. The sun gear press-fitting device according to claim 5, characterized in that: The inner side wall of the ventilation slot (34) is clamped with a dustproof net (33), and the cross section of the dustproof net (33) is a T-shaped structure.

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