CN105058025B - Portable bearing hydraulic pressure assembling and disassembling device - Google Patents

Abstract

A kind of portable bearing hydraulic pressure assembling and disassembling device, it is related to a kind of bearing assembling and disassembling device, including hydraulic system and operating cylinder, pressing plate, backing plate, hydraulic system includes fuel tank, and operating cylinder includes cylinder tube, piston rod, and wherein piston rod is arranged in cylinder tube, linked together between cylinder tube and fuel tank by flexible pipe, described pressing plate is located at the base framework side for installing bearing, and connection is inserted in the pressing plate one end, and the other end is in contact with the cylinder tube end of operating cylinder；Backing plate is located at the opposite side of base framework, and the piston rod external part of operating cylinder sequentially passes through pressing plate, base framework, backing plate and nut and connected.The present invention may be adapted to the bearing dismantling of volume and quality larger structure part, with noise is small, bearing installation accuracy high, labor intensity is low, operating efficiency is high, structure is safe and reliable, cost is low, it is flexible to operation the characteristics of, be particularly suitable for the assembly and disassembly of all kinds structural member middle (center) bearing in various operating positions.

Description

Portable bearing hydraulic assembly and disassembly device

technical field

The invention relates to a bearing assembly and disassembly device, in particular to a portable bearing hydraulic assembly and disassembly device.

Background technique

The general assembly plants of large-scale machinery manufacturing enterprises generally have long-term and serious noise exceeding the standard. During working hours, the highest noise level in some enterprise workshops is above, and rarely below . The reason for this serious noise pollution is that the product assembly process is brutally backward.

Because the products assembled in the general assembly plant of large-scale machinery manufacturing enterprises are mostly composed of relatively large steel plate tailor-welded structural parts, their surface area is large and their ability to radiate noise is strong. When assembling the bearings to the steel plate structural parts, the method of hitting with a sledgehammer manually has been used, so that the plate surface of the structural part is excited to vibrate according to its various natural frequencies. At this point the noise is at least above, and the frequency is mainly concentrated on the most harmful to workers' health within range. Especially when multiple stations work at the same time, the reverberation noise can easily exceed .

This harsh noise environment is incompatible with the concept of modern green manufacturing, and at the same time, it will definitely cause various damages to the bodies of people who work in this factory for a long time. In addition, hitting the bearing of the key component of the product with a sledgehammer will inevitably produce harmful assembly stress and destroy the original precision of the bearing, thereby increasing energy consumption, shortening its working life, and ultimately reducing the competitiveness of the company in the domestic and foreign markets .

The utility model patent with the authorized announcement number CN203579128U discloses "a bearing disassembly and assembly device". Although this device can realize the disassembly and assembly of bearings, it requires a fixed frame and the overall structure is relatively large. The objects it serves It is relatively small, and for structural parts with large volume and mass (such as box-type structural parts in construction machinery products), it cannot be placed in the frame for bearing assembly and disassembly. Therefore, this device is only suitable for the disassembly and assembly of small structural parts bearings.

Contents of the invention

The technical problem to be solved by the present invention is to provide a portable bearing hydraulic assembly and disassembly device to solve the shortcomings of the prior art, such as high noise, damage to bearing precision, shortened working life, and inability to disassemble and assemble bearings of larger structural parts .

The technical solution to solve the above-mentioned technical problems is: a portable bearing hydraulic assembly and disassembly device, including a hydraulic system and a working oil cylinder, the hydraulic system includes an oil tank, and the working oil cylinder includes an oil cylinder barrel and a piston rod, and the piston rod is installed in the oil cylinder barrel, The oil cylinder and the oil tank are connected together by a hose, and also include a pressure plate and a backing plate. The pressure plate is located on one side of the base frame where the bearing is installed. One end of the pressure plate is inserted into the bearing, and the other end is connected to the cylinder end of the working cylinder. The backing plate is located on the other side of the base frame, and the extended end of the piston rod of the working cylinder passes through the pressing plate, the base frame, the backing plate and the nut in sequence.

A further technical solution of the present invention is: the pressure plate is a double ring structure composed of a concentric outer ring and an inner ring, the middle of the pressure plate is provided with a central through hole of the pressure plate for the piston rod to pass through, and the inner ring The outer circular surface fits into the inner bore of the bearing.

A further technical solution of the present invention is: the backing plate includes a flat round backing plate for assembling the bearing and a cylindrical round backing plate for disassembling the bearing, and the middle part of the flat round backing plate is provided with a convenient The central through hole A of the backing plate through which the piston rod passes, one side of the central through hole A of the backing plate is provided with a through groove A communicating with the central through hole A of the backing plate; One side of the central through hole B of the backing plate is provided with a through groove B communicating with the central through hole B of the backing plate.

A further technical solution of the present invention is: one end of the nut is fixedly mounted with a pin; the central through hole A of the backing plate is also provided with a pin hole A, and the central through hole B of the backing plate is also provided with a pin Hole B, this pin hole A, pin hole B cooperates with column pin respectively.

Due to the adoption of the above structure, compared with the prior art, the portable bearing hydraulic assembly and disassembly device of the present invention has the following beneficial effects:

1. Suitable for disassembly and assembly of bearings for larger structural parts:

Because the present invention includes a hydraulic system, a working oil cylinder, a pressing plate, and a backing plate, the hydraulic system includes an oil tank, the working oil cylinder includes an oil cylinder barrel and a piston rod, the piston rod is installed in the oil cylinder barrel, and the oil cylinder barrel and the oil tank are connected together by a hose; The pressure plate is located on one side of the base frame where the bearing is installed, one end of the pressure plate is inserted into the bearing, and the other end is in contact with the end of the cylinder barrel of the working cylinder; the backing plate is located on the other side of the base frame, and the working cylinder The extended end of the piston rod passes through the pressing plate, the base frame, the backing plate and is connected with the pin nut in turn. When it is necessary to assemble the bearing, after extending the piston rod to a certain length, insert the pressure plate into the piston rod, screw the nut into the end of the piston rod, and then insert the bearing into the outer surface of the inner ring of the pressure plate; use a hook or Hand-hold the working oil cylinder, make the piston rod and nut pass through the inner hole of the machine base frame, set it on a flat circular backing plate and adjust its position, pedal or use a pump station, and guide the hydraulic oil in the oil tank into the working oil cylinder to perform alignment. Assembly of bearings. When disassembling the bearing, pass the piston rod covered with the pressure plate and nut through the frame of the machine base and the inner hole of the bearing, put the cylindrical circular backing plate on it and adjust its position, and then the disassembly of the bearing can be carried out. Therefore, the present invention does not need to move any structural parts that need to be assembled and disassembled, and is suitable for disassembling bearings of structural parts with large volume and mass.

2. Low noise:

Since the present invention is aimed at the current state of the art that the most important source of noise in the general assembly plant comes from the sledgehammer hitting the assembly bearing, it designs and uses a hydraulic pushing process to assemble or disassemble the bearing, and there is no noise in the whole process, which can greatly improve the work. The environment guarantees people's physical and mental health and conforms to the concept of modern green manufacturing.

3. It can guarantee the bearing precision and prolong the working life of the bearing:

Since the present invention adopts the hydraulic pushing process to assemble or disassemble the bearing, and the structure body that needs to assemble and disassemble the bearing is used as the frame during work, the automatic sealing of the force transmission path can be realized without any damage to the bearing seat. Therefore, the present invention avoids the method of manual hitting with a sledgehammer, greatly reduces the assembly stress of the product, improves the product quality, and prolongs the service life of the product.

4. It can reduce the labor intensity of workers while improving their work quality and efficiency:

Since the present invention adopts the hydraulic pushing process to assemble or disassemble the bearing, it avoids the way of manual hitting with a sledgehammer, which can greatly reduce the labor intensity of workers while improving their work quality and efficiency.

5. The structure is safe and reliable:

The overall structure of the present invention is safe and reliable, and a pin is installed on the side of the nut connecting the end of the piston rod. Through the pin, the backing plate can be reliably positioned with the nut when the device is working, thereby avoiding the occurrence of backing. Board drop accident.

6. The structure is simple, the cost is low, the operation is convenient and flexible, and it is especially suitable for the assembly and disassembly of bearings in various types of structural parts in various working positions.

Below, the technical features of the portable bearing hydraulic mounting and dismounting device of the present invention will be further described in conjunction with the accompanying drawings and embodiments.

Description of drawings

Figure 1: Schematic diagram of the structure of the portable bearing hydraulic assembly and disassembly device of the present invention,

Figure 2: Schematic diagram of the structure of the pressing plate described in Embodiment 1,

Fig. 3-4: Schematic diagram of the structure of the flat circular backing plate described in Embodiment 1, wherein:

Figure 3: Front view, Figure 4: Left view of Figure 3;

Fig. 5-6: Schematic diagram of the structure of the cylindrical backing plate described in Embodiment 1, wherein:

Figure 5: Front view, Figure 6: Left view of Figure 5;

In the above-mentioned accompanying drawings, each reference numeral is explained as follows:

1-hydraulic system, 101-oil tank,

2-working oil cylinder, 201-oil cylinder barrel, 202-piston rod,

3- Hose,

4-press plate, 401-outer ring, 402-inner ring, 403-press plate center through hole,

5-backing plate, 501-flat round backing plate, 5011-through hole A in the center of backing plate, 5012-through slot A, 5013-pin hole A,

502-cylindrical round backing plate, 5021-backing plate center through hole B, 5022-through groove B, 5023-pin hole B,

6-bearing, 7-base frame, 8-nut, 9-pin.

detailed description

Embodiment one:

A portable bearing hydraulic assembly and disassembly device, including a hydraulic system 1, a working cylinder 2, a pressure plate 4, and a backing plate 5, the hydraulic system 1 includes an oil tank 101, and the working cylinder 2 includes an oil cylinder barrel 201 and a piston rod 202. The piston rod 202 is installed in the oil cylinder 201, and the oil cylinder 201 and the oil tank 101 are connected together through the hose 3; the pressure plate 4 is located on one side of the base frame 7 where the bearing 6 is installed, and one end of the pressure plate 4 is inserted into the bearing 6 , the other end is in contact with the end of the cylinder barrel 201 of the working cylinder 2; the backing plate 5 is located on the other side of the base frame 7, and the extended end of the piston rod 202 of the working cylinder 2 extends out of the cylinder barrel 201 and passes through it in turn The pressing plate 4, the base frame 7, the backing plate 5 are connected with the nut 8, and the inner end of the nut 8 is fixedly equipped with a column pin 9.

Described pressing plate 4 is the double ring structure that is made of concentric outer ring 401 and inner ring 402, and the middle part of pressing plate 4 is provided with the through hole 403 of pressing plate center that facilitates piston rod to pass through, and the outer circle of inner ring 402 The surface is matched with the inner hole of the bearing, and the fit is a relatively loose dynamic fit. The purpose of this design is to facilitate the centering of the bearing, and it is especially suitable for batch assembly of a certain type of bearing.

The backing plate 5 includes a flat round backing plate 501 for assembling the bearing and a cylindrical round backing plate 502 for dismounting the bearing. Backing plate central through hole A5011, one side of backing plate central through hole A5011 is provided with through groove A5012 connected with backing plate central through hole A5011, backing plate central through hole A5011 is also provided with pin hole A5013; The central through hole B5021 of the backing plate is provided in the middle of the backing plate 502 to facilitate the passage of the piston rod. One side of the central through hole B5021 of the backing plate is provided with a through groove B5022 connecting the central through hole B5021 of the backing plate. The central through hole B5021 of the backing plate is also A pin hole B5023 is also provided; the pin hole A5013 and the pin hole B5023 are matched with the column pin 9 respectively.

The working principle of the present invention is as follows:

When it is necessary to assemble the bearing, after extending the piston rod to a certain length, insert the pressure plate into the piston rod, screw the nut into the end of the piston rod, and then insert the bearing into the outer surface of the inner ring of the pressure plate; use a hook or Hand-hold the working oil cylinder, make the piston rod and nut pass through the inner hole of the machine base frame, set it on a flat circular backing plate and adjust its position, pedal or use a pump station, and guide the hydraulic oil in the oil tank into the working oil cylinder to perform alignment. Assembly of bearings. When disassembling the bearing, pass the piston rod covered with the pressure plate and nut through the frame of the machine base and the inner hole of the bearing, put the cylindrical circular backing plate on it and adjust its position, and then the disassembly of the bearing can be carried out. Therefore, the present invention does not need to move any structural parts that need to be assembled and disassembled, and is suitable for disassembling bearings of structural parts with large volume and mass.

Claims (2)

1. A portable bearing hydraulic assembly and disassembly device, including a hydraulic system (1) and a working cylinder (2), the hydraulic system (1) includes a fuel tank (101), and the working cylinder (2) includes a cylinder barrel (201), a piston rod ( 202), the piston rod (202) is installed in the oil cylinder (201), and the oil cylinder (201) and the oil tank (101) are connected together through the hose (3), which is characterized in that it also includes a pressure plate ( 4), the backing plate (5), the pressure plate (4) is located on the side of the base frame (7) where the bearing (6) is installed, one end of the pressure plate (4) is inserted into the bearing (6), and the other end is connected to the working oil cylinder (2) The ends of the oil cylinder (201) are in contact; the backing plate (5) is located on the other side of the base frame (7), and the extending end of the piston rod (202) of the working oil cylinder (2) passes through in turn. Overpressure plate (4), base frame (7), backing plate (5) and nut (8) are connected; the pressure plate (4) is composed of concentric outer ring (401) and inner ring (402) The double ring structure, the middle part of the pressure plate (4) is provided with a central through hole (403) of the pressure plate for the piston rod to pass through, and the outer circular surface of the inner ring (402) matches the inner hole of the bearing; the pad The plate (5) includes a flat round backing plate (501) for assembling the bearing and a cylindrical round backing plate (502) for dismounting the bearing. The middle part of the flat round backing plate (501) is provided with a piston The central through hole A (5011) of the backing plate through which the rod passes, and a through groove A (5012) connected to the central through hole A (5011) of the backing plate is provided on one side of the backing plate central through hole A (5011); the cylinder The center of the backing plate (502) is provided with a central through hole B (5021) for the piston rod to pass through, and one side of the central through hole B (5021) of the backing plate is provided with a central through hole B (5021) of the backing plate through groove B (5022). 2. The portable bearing hydraulic assembly and disassembly device according to claim 1, characterized in that: one end of the nut (8) is fixed with a pin (9); the through hole A (5011) in the center of the backing plate There is also a pin hole A (5013) on the top, and a pin hole B (5023) is also set on the backing plate center through hole B (5021). The pin hole A (5013) and the pin hole B (5023) are respectively connected with the column pin (9) Match.