Quick dismounting device for bearing

Abstract

The bearing quick dismounting device comprises a door frame type vertical frame and a bearing bearing seat, a lifting beam is slidably arranged between the middle upper portions of stand columns on the two sides of the door frame type vertical frame, a jacking lifting mechanism is fixedly installed between a top beam of the door frame type vertical frame and the lifting beam, and the outer sides of the middle lower portions of the stand columns on the two sides of the door frame type vertical frame are fixedly connected with a rectangular bearing frame in a sleeving mode. The middle of the bottom face of the lifting beam is fixedly connected with an ejector rod, and the bearing bearing seat is installed on the rectangular bearing frame and located under the ejector rod. The bearing dismounting device is scientific in design, reasonable in structure, convenient to dismount, time-saving, labor-saving, high in efficiency and capable of avoiding bearing damage.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical parts disassembly equipment, in particular to a bearing quick disassembly device. Background Art

[0002] When factory production and processing equipment works for a long time, the shafts and bearings of rotating parts are often damaged due to aging problems, so the shafts or bearings need to be replaced. When replacing shafts or bearings, the bearings must be removed from the shafts. Usually, people use a hammer to directly knock the bearings off, and sometimes put rubber blocks on them to avoid damaging the bearings. This method is inconvenient, time-consuming and labor-intensive, and the bearings are unevenly stressed, which makes them very easy to be damaged and eccentric, making them even more difficult to disassemble.

[0003] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the invention

[0004] The purpose of the utility model is to provide a bearing quick disassembly device in view of the deficiencies in the prior art. The utility model has a scientific design, a reasonable structure, convenient disassembly, time-saving and labor-saving, high efficiency and avoids damage to the bearing.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a bearing quick disassembly device, including a door frame type frame and a bearing bearing seat, a lifting beam is slidably arranged between the middle and upper parts of the columns on both sides of the door frame type frame, a top pressure lifting mechanism is fixedly installed between the top beam of the door frame type frame and the lifting beam, a rectangular bearing frame is fixedly connected to the outer side of the middle and lower parts of the columns on both sides of the door frame type frame, a top rod is fixedly connected to the middle of the bottom surface of the lifting beam, and the bearing bearing seat is installed on the rectangular bearing frame and is located directly below the top rod.

[0006] Based on the above, the two side columns of the door frame type frame are channel steel profiles, the top beam of the door frame type frame is a square steel tube profile, the upper ends of the two side columns of the door frame type frame are respectively welded and fixed to the left and right sides of the bottom of the top beam of the door frame type frame, the lower ends of the two side columns of the door frame type frame are fixedly connected with a base plate, the front middle and rear middle parts of the base plate are fixedly welded with anti-tilt support plates, and the two ends of the lifting beam are respectively slidably fitted in the grooves of the two side columns of the door frame type frame.

[0007] Based on the above, the top pressure lifting mechanism includes a hydraulic cylinder, which is vertically arranged between the top beam and the lifting beam of the door frame type frame, and the two ends of the hydraulic cylinder are respectively fixedly connected to the middle of the bottom surface of the top beam of the door frame type frame and the middle of the top surface of the lifting beam.

[0008] Based on the above, the bearing support seat includes two bearing pads, which are symmetrical on the left and right and are placed horizontally on the top surfaces of the front and rear frames of the rectangular support frame. The two bearing pads are in sliding contact with the top surfaces of the front and rear frames of the rectangular support frame. The adjacent side edges of the two bearing pads are in close contact and smooth arc grooves are provided in the middle. The top surfaces of the front and rear frames of the rectangular support frame are respectively provided with guide and clamping mechanisms connected to the two bearing pads and limiting the movement of the two bearing pads in the left and right directions. The two guide and clamping mechanisms have the same structure and are arranged symmetrically front to back.

[0009] Based on the above, the front guiding and clamping mechanism includes a guide rod, which horizontally penetrates the front side parts of the two bearing pads along the left and right directions and is located on the upper middle side of the front side frame of the rectangular supporting frame. The two ends of the guide rod are respectively fixedly connected with block blocks, and the two block blocks are symmetrically fixedly connected to the top surface of the front side frame of the rectangular supporting frame. Compression springs sleeved on the guide rod are pressed between the block on the left and the bearing pad on the left, and between the block on the right and the bearing pad on the right.

[0010] Based on the above, handles are fixedly arranged at the middle of the front side and the rear side of the bearing pad, and the four side frames of the rectangular bearing frame are all channel steel profiles.

[0011] The utility model has substantial characteristics and progress compared with the prior art. Specifically, when the utility model is used, the piston rod of the hydraulic cylinder is initially in a retracted state, and the lifting beam is in a high position. The staff first pulls the two bearing pads to the left and right sides respectively through the handle, and each compression spring is squeezed. Then, the shaft with the bearing is vertically passed through the middle between the two bearing pads, and the handle is released. Then, under the elastic action of each compression spring, the two bearing pads clamp the shaft in the two arc grooves, and the shaft is in sliding contact with the two arc grooves. The shaft is located directly below the top rod, and the bearing is supported on the two The bearing pad is then extended and reset, and the piston rod of the hydraulic cylinder drives the lifting beam and the push rod to move upward, so that the lower end of the push rod presses the upper end of the shaft until the push rod pushes the shaft out of the bearing. Disassembly is convenient, time-saving and labor-saving, and efficiency is high. There is no need to knock the bearing, and the bearing is evenly stressed to avoid damage to the bearing. Then the piston rod of the hydraulic cylinder contracts and resets, and the piston rod of the hydraulic cylinder drives the lifting beam and the push rod to move upward, and the bearing and the shaft are removed. The two bearing pads are reset under the elastic action of each compression spring. Then, according to the above operation, the next bearing disassembly work can be carried out. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model.

[0013] Figure 2 yes Figure 1 AA section view.

[0014] In the figure: 1. Door frame type frame; 2. Lifting beam; 3. Rectangular bearing frame; 4. Top rod; 5. Bottom plate; 6. Anti-tilt support plate; 7. Hydraulic cylinder; 8. Bearing pad; 9. Arc groove; 10. Guide rod; 11. Block; 12. Compression spring; 13. Handle. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0016] like Figure 1 and 2 As shown, the bearing quick disassembly device includes a door frame type frame 1 and a bearing bearing seat, a lifting beam 2 is slidably arranged between the middle and upper parts of the columns on both sides of the door frame type frame 1, a top pressure lifting mechanism is fixedly installed between the top beam of the door frame type frame 1 and the lifting beam 2, a rectangular bearing frame 3 is fixedly connected to the outer side of the middle and lower parts of the columns on both sides of the door frame type frame 1, a top rod 4 is fixedly connected to the middle of the bottom surface of the lifting beam 2, and the bearing bearing seat is installed on the rectangular bearing frame 3 and is located directly below the top rod 4.

[0017] The two side columns of the door frame type frame 1 are channel steel profiles, and the top beam of the door frame type frame 1 is a square steel tube profile. The upper ends of the two side columns of the door frame type frame 1 are respectively welded and fixed to the left and right sides of the bottom of the top beam of the door frame type frame 1, and the lower ends of the two side columns of the door frame type frame 1 are fixedly connected with a bottom plate 5, and the front middle and rear middle parts of the bottom plate 5 are fixedly welded with anti-tilt support plates 6 (to prevent the door frame type frame 1 from tilting forward or backward), and the two ends of the lifting beam 2 are respectively slidably fitted in the grooves of the two side columns of the door frame type frame 1.

[0018] The top pressure lifting mechanism includes a hydraulic cylinder 7, which is vertically arranged between the top beam of the door frame type frame 1 and the lifting beam 2. The two ends of the hydraulic cylinder 7 are respectively fixedly connected to the middle of the bottom surface of the top beam of the door frame type frame 1 and the middle of the top surface of the lifting beam 2.

[0019] The bearing support seat includes two bearing pads 8, which are symmetrical and horizontally placed on the top surfaces of the front and rear frames of the rectangular support frame 3. The two bearing pads 8 are in sliding contact with the top surfaces of the front and rear frames of the rectangular support frame 3. The adjacent sides of the two bearing pads 8 are in close contact and smooth arc grooves 9 are provided in the middle. The top surfaces of the front and rear frames of the rectangular support frame 3 are respectively provided with guiding and clamping mechanisms that are connected to the two bearing pads 8 and limit the movement of the two bearing pads 8 in the left and right directions. The two guiding and clamping mechanisms have the same structure and are arranged symmetrically front to back.

[0020] The guiding and clamping mechanism on the front side includes a guide rod 10, which horizontally penetrates the front side parts of the two bearing pads 8 along the left-right direction and is located on the upper middle side of the front side frame of the rectangular supporting frame 3. The two ends of the guide rod 10 are respectively fixedly connected with stop blocks 11, and the two stop blocks 11 are symmetrically fixedly connected to the top surface of the front side frame of the rectangular supporting frame 3. A compression spring 12 mounted on the guide rod 10 is pressed between the stop block 11 on the left and the bearing pad 8 on the left, and between the stop block 11 on the right and the bearing pad 8 on the right.

[0021] Handles 13 are fixedly provided at the middle of the front side and the rear side of the bearing pad 8, and the four side frames of the rectangular bearing frame 3 are all channel steel profiles.

[0022] When the utility model is used, the piston rod of the hydraulic cylinder 7 is initially in a retracted state, and the lifting beam 2 is in a high position. The staff first pulls the two bearing pads 8 to the left and right sides respectively through the handle 13, and each compression spring 12 is squeezed, and then the shaft with the bearing passes vertically through the middle between the two bearing pads 8, and the handle 13 is released. Then, under the elastic action of each compression spring 12, the two bearing pads 8 clamp the shaft in the two arc grooves 9, and the shaft is in sliding contact with the two arc grooves 9. The shaft is located directly below the push rod 4, and the bearing is supported on the two bearing pads 8. Then, the hydraulic oil The piston rod of the cylinder 7 is slowly extended to move the lifting beam 2 downward, and the lifting beam 2 drives the push rod 4 to move downward, so that the lower end of the push rod 4 presses the upper end of the shaft until the push rod 4 pushes the shaft out of the bearing. The disassembly is convenient, time-saving and labor-saving, and the efficiency is high. There is no need to knock the bearings, and the bearings are evenly stressed to avoid damage to the bearings. Then the piston rod of the hydraulic cylinder 7 contracts and resets, and the piston rod of the hydraulic cylinder 7 drives the lifting beam 2 and the push rod 4 to move upward, removes the bearings and the shaft, and the two bearing pads 8 are reset under the elastic action of each compression spring 12. Then, according to the above operation, the next bearing disassembly work can be carried out.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. Bearing quick disassembly device, characterized by: It includes a door frame type frame and a bearing support seat, a lifting beam is slidably arranged between the middle and upper parts of the columns on both sides of the door frame type frame, a top pressure lifting mechanism is fixedly installed between the top beam of the door frame type frame and the lifting beam, a rectangular bearing frame is fixedly connected to the outer side of the middle and lower parts of the columns on both sides of the door frame type frame, a top rod is fixedly connected to the middle of the bottom surface of the lifting beam, and the bearing support seat is installed on the rectangular bearing frame and is located directly below the top rod.

2. The bearing quick disassembly device according to claim 1, characterized in that: The two side columns of the door frame type frame are channel steel profiles, and the top beam of the door frame type frame is a square steel tube profile. The upper ends of the two side columns of the door frame type frame are respectively welded and fixed to the left and right sides of the bottom of the top beam of the door frame type frame, and the lower ends of the two side columns of the door frame type frame are fixedly connected with a bottom plate, and the front middle and rear middle parts of the bottom plate are fixedly welded with anti-tilt support plates, and the two ends of the lifting beam are respectively slidably fitted in the grooves of the two side columns of the door frame type frame.

3. The bearing quick disassembly device according to claim 2, characterized in that: The top pressure lifting mechanism includes a hydraulic cylinder, which is vertically arranged between the top beam and the lifting beam of the door frame type frame. The two ends of the hydraulic cylinder are respectively fixedly connected to the middle of the bottom surface of the top beam of the door frame type frame and the middle of the top surface of the lifting beam.

4. The bearing quick disassembly device according to claim 2, characterized in that: The bearing support seat includes two bearing pads, which are symmetrical on the left and right and are placed horizontally on the top surfaces of the front and rear frames of the rectangular support frame. The two bearing pads are in sliding contact with the top surfaces of the front and rear frames of the rectangular support frame. The adjacent side edges of the two bearing pads are in close contact and smooth arc grooves are provided in the middle. The top surfaces of the front and rear frames of the rectangular support frame are respectively provided with guide and clamping mechanisms that are connected to the two bearing pads and limit the movement of the two bearing pads in the left and right directions. The two guide and clamping mechanisms have the same structure and are arranged symmetrically front to back.

5. The bearing quick disassembly device according to claim 4, characterized in that: The front guiding and clamping mechanism includes a guide rod, which horizontally penetrates the front side parts of the two bearing pads along the left and right directions and is located on the upper middle side of the front side frame of the rectangular supporting frame. The two ends of the guide rod are respectively fixedly connected with block blocks, and the two block blocks are symmetrically fixedly connected to the top surface of the front side frame of the rectangular supporting frame. Compression springs sleeved on the guide rod are pressed between the block on the left and the bearing pad on the left, and between the block on the right and the bearing pad on the right.

6. The bearing quick disassembly device according to claim 4, characterized in that: Handles are fixedly arranged at the middle of the front side and the rear side of the bearing pad, and the four side frames of the rectangular bearing frame are all channel steel profiles.

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