A bearing disassembly device for a sliding valve type vacuum mechanical pump

Abstract

The utility model discloses a bearing disassembly device of a sliding valve type vacuum mechanical pump, including a pump chamber end cover, a bearing mounted on the pump chamber end cover, a disassembly mechanism provided on one side of the bearing, a fixing mechanism provided on the disassembly mechanism, the disassembly mechanism including a support seat and a lift plate, a plurality of strip grooves are provided on the lift plate, a plurality of strip grooves are provided inside each of the strip grooves, one end of the pull rod is threadedly connected with an adjusting nut through a screw, and belongs to the technical field of vacuum smelting equipment. The bearing disassembly device of the sliding valve type vacuum mechanical pump is provided by screwing the clamping ball head at the end of the pull rod into the arc surface between the inner ring and the outer ring of the bearing along the gap between the steel balls in the bearing, and then extending the short rod part of the lever into the bottom of the lift plate, and then rotating the wrench to drive the lever to rotate, and using the lever to pry up the lift plate to pull out the bearing, without the need for overall disassembly, to prevent the outflow of pump fluid, and effectively improve the convenience and work efficiency of disassembly.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum smelting equipment, in particular to a sliding valve type vacuum mechanical pump bearing disassembly device. Background Art

[0002] The vacuum consumable arc furnace is the main metallurgical smelting equipment for producing non-ferrous metals and refractory metals. In order to ensure the quality and performance of the smelted metal, the smelting process must be carried out under a certain vacuum state. Therefore, the vacuum environment in the furnace chamber becomes particularly important.

[0003] Among them, the slide valve vacuum mechanical pump (hereinafter referred to as the mechanical pump) is one of the key vacuum equipment components of the vacuum system of the vacuum consumable arc furnace, and plays a great role in the entire vacuum system. As the front pump of the vacuum system, the mechanical pump runs 24 hours a day without stopping the equipment. Long-term operation causes wear inside the bearings at both ends of the mechanical pump rotor, resulting in vibration during the operation of the mechanical pump, further wear of the shaft seal, oil leakage and air leakage, and the normal operation of the vacuum system cannot be guaranteed. Therefore, the mechanical pump bearings must be replaced in time to ensure the reliability and vacuum degree of the equipment. At present, the disassembly method of the mechanical pump bearing is: first remove the pump chamber end cover screws, and then use a crowbar to separate the pump chamber end cover and the bearing from the pump body shaft, and finally separate the bearing from the pump chamber end cover, and the bearing disassembly is completed. In this disassembly method, the vacuum pump oil in the pump chamber flows out when the pump chamber end cover is opened, generating a large amount of hazardous waste, and when the pump chamber end cover is separated from the shaft, due to the friction resistance between the bearing and the shaft, two people need to cooperate with the help of a crowbar to complete it. The entire bearing disassembly process requires the pump chamber end cover to be disassembled as a whole, which is time-consuming and labor-intensive, and has low work efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a sliding valve type vacuum mechanical pump bearing disassembly device, which solves the problem that the bearing disassembly process requires the pump chamber end cover to be disassembled as a whole, which is time-consuming and labor-intensive and has low work efficiency.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a sliding valve type vacuum mechanical pump bearing disassembly device, comprising a pump chamber end cover, a bearing is installed on the pump chamber end cover, a disassembly mechanism is provided on one side of the bearing, and a fixing mechanism is provided on the disassembly mechanism;

[0006] The disassembly mechanism includes a support seat and a lifting plate, the lifting plate is provided with a plurality of strip grooves, and a pull rod is provided inside the plurality of strip grooves, one end of the pull rod is threadedly connected to an adjusting nut through a screw, and the other end of the pull rod is fixedly connected to a clamping ball head, a disassembly screw is rotatably connected to the support seat, a wrench is fixedly connected to the end of the disassembly screw, a disassembly nut is threadedly connected to the disassembly screw, a lower pressure plate is fixedly connected to the outer side of the disassembly nut, a support frame and a plurality of guide rods are connected to the bottom of the support seat, a lever is rotatably connected to the top of the support frame, and a return spring is provided between the lever and the support frame.

[0007] Preferably, the diameter of the pull rod is greater than the width of the strip groove, and the screw rod is arranged inside the strip groove, so that the position of the pull rod can be adjusted and can be fixed by using the screw rod and the adjusting nut.

[0008] Preferably, the plurality of guide rods are fixedly mounted on the support seat, and the lower pressure plate is provided with a plurality of guide holes, and the lower pressure plate is slidably connected to the guide rods through the guide holes, so as to guide the movement of the lower pressure plate.

[0009] Preferably, the snap-on ball head matches the gap between the steel balls in the bearing, so that the snap-on ball head can be screwed into the arc surface between the inner ring and the outer ring of the bearing, ensuring that the arc surface of the snap-on ball head is completely fitted with the arc surface of the steel ring. The snap-on ball head is quenched to prevent cracking and deformation of the snap-on ball head and improve stability in use.

[0010] Preferably, the lever includes a long rod portion and a short rod portion, one end of the long rod portion contacts the bottom surface of the lower pressure plate, and one end of the short rod portion contacts the bottom surface of the lifting plate, so that it can save effort according to the lever principle and make it more convenient to remove the bearing.

[0011] Preferably, one end of the reset spring is fixedly connected to the lever, and the other end of the reset spring is fixedly connected to the support frame, so that the lever can be reset.

[0012] Preferably, the fixing mechanism includes a plurality of electromagnets, and the plurality of electromagnets are fixedly mounted on the bottom surface of the support base, the ends of the plurality of electromagnets are connected to batteries and switch buttons, the ends of the batteries are connected to charging ports, and the charging ports are provided with dust plugs, which can facilitate the fixing of the support base.

[0013] The utility model provides a sliding valve type vacuum mechanical pump bearing disassembly device. Compared with the prior art, it has the following beneficial effects:

[0014] 1. The bearing disassembly device of the sliding valve type vacuum mechanical pump is configured to screw the clamping ball head at the end of the pull rod into the arc surface between the inner ring and the outer ring of the bearing along the gap between the steel balls in the bearing, and then extend the short rod of the lever to the bottom of the lifting plate, and then rotate the wrench to drive the lever to rotate, and use the lever to pry up the lifting plate to pull out the bearing, without the need for overall disassembly, to prevent the outflow of pump fluid, and effectively improve the convenience and work efficiency of disassembly.

[0015] 2. The bearing disassembly device of the sliding valve type vacuum mechanical pump charges the battery through the charging port, and then presses the switch button, which energizes the battery and the electromagnet. The electromagnet generates magnetism to adsorb the end cover of the pump chamber, which can facilitate the fixing of the support seat and improve the stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the disassembly mechanism structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the support frame structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the fixing mechanism structure of the utility model.

[0020] In the figure: 1. Pump chamber end cover; 2. Disassembly mechanism; 201. Support seat; 202. Lifting plate; 203. Strip groove; 204. Pull rod; 205. Adjusting nut; 206. Card-jointed ball head; 207. Disassembly screw; 208. Disassembly nut; 209. Wrench; 210. Lower pressure plate; 211. Guide rod; 212. Support frame; 213. Lever; 214. Return spring; 3. Bearing; 4. Fixing mechanism; 401. Electromagnet; 402. Switch button; 403. Battery; 404. Dust plug. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3The utility model provides a technical solution: a bearing disassembly device of a sliding valve type vacuum mechanical pump, comprising a pump chamber end cover 1, a bearing 3 is installed on the pump chamber end cover 1, a disassembly mechanism 2 is provided on one side of the bearing 3, and a fixing mechanism 4 is provided on the disassembly mechanism 2. The bearing 3 inside the pump chamber end cover 1 can be quickly disassembled through the disassembly mechanism 2 without the need for overall disassembly, thereby preventing the outflow of pump liquid and effectively improving the convenience and work efficiency of disassembly.

[0023] The disassembly mechanism 2 includes a support seat 201 and a lifting plate 202. The lifting plate 202 is provided with a plurality of strip grooves 203. A pull rod 204 is provided inside each of the plurality of strip grooves 203. The diameter of the pull rod 204 is greater than the width of the strip groove 203. A screw is provided inside the strip groove 203 so that the position of the pull rod 204 can be adjusted. An adjusting nut 205 is connected to one end of the pull rod 204 through a screw thread. The screw and the adjusting nut 205 can be used to fix the pull rod 204, so as to adapt to bearings 3 of different sizes. The pull rod 204 The other end is fixedly connected with a snap-on ball head 206, which matches the clearance between the steel balls in the bearing 3, so that the snap-on ball head 206 can be screwed into the arc surface between the inner ring and the outer ring of the bearing 3, ensuring that the arc surface of the snap-on ball head 206 is completely fitted with the arc surface of the steel ring, so that the pull rod 204 can pull out the bearing 3 through the snap-on ball head 206. The snap-on ball head 206 is quenched to prevent the snap-on ball head 206 from cracking and deformation, thereby improving the stability of use. A disassembly screw 207 is rotatably connected to the support seat 201, and the disassembly screw 207 is used to disassemble the bearing 3. 07 end is fixedly connected with a wrench 209, a disassembly nut 208 is threadedly connected to the disassembly screw 207, a lower pressure plate 210 is fixedly connected to the outer side of the disassembly nut 208, a support frame 212 and a plurality of guide rods 211 are connected to the bottom of the support seat 201, and the plurality of guide rods 211 are fixedly installed on the support seat 201, and a plurality of guide holes are provided on the lower pressure plate 210, and the lower pressure plate 210 is slidably connected with the guide rods 211 through the guide holes, so that the movement of the lower pressure plate 210 can be guided, and the top of the support frame 212 is rotatably connected with a lever Rod 213, lever 213 includes a long rod portion and a short rod portion, one end of the long rod portion contacts the bottom surface of the lower pressure plate 210, and one end of the short rod portion contacts the bottom surface of the lifting plate 202. The long rod portion serves as a long lever arm, and the short rod portion serves as a short lever arm, so that it can save effort according to the lever principle and it is more convenient to remove the bearing 3. A reset spring 214 is provided between the lever 213 and the support frame 212, one end of the reset spring 214 is fixedly connected to the lever 213, and the other end of the reset spring 214 is fixedly connected to the support frame 212, so as to reset the lever 213.

[0024] See also Figure 1 and Figure 4The fixing mechanism 4 includes a plurality of electromagnets 401, which are fixedly mounted on the bottom surface of the support seat 201. The ends of the plurality of electromagnets 401 are connected to batteries 403 and switch buttons 402. The ends of the batteries 403 are connected to a charging port. A dust plug 404 is provided on the charging port to seal the charging port to prevent foreign matter from entering the charging port. The battery 403 can be charged through the charging port, and then the switch button 402 is pressed. The switch button 402 energizes the battery 403 and the electromagnet 401. The electromagnet 401 generates magnetism to adsorb the pump chamber end cover 1, which can facilitate the fixing of the support seat 201 and improve the stability of use.

[0025] During operation, the snap-in ball head 206 at the end of the pull rod 204 is screwed into the arc surface between the inner ring and the outer ring of the bearing 3 along the gap between the steel balls in the bearing 3 to ensure that the arc surface of the snap-in ball head 206 is completely fitted with the arc surface of the steel ring, and then the short rod part of the lever 213 is extended to the bottom of the lifting plate 202, and then the wrench 209 is rotated. The rotation of the wrench 209 drives the disassembly screw 207 to rotate, and the rotation of the disassembly screw 207 drives the disassembly nut 208 to move. The movement of the disassembly nut 208 drives the lower pressure plate 210 to move along the guide rod 211, and the lower pressure plate 210 moves to push the long rod part of the lever 213, and the lever 213 is used to pry up the lifting plate 202. The movement of the lifting plate 202 drives the pull rod 204 to move, and the pull rod 204 uses the snap-in ball head 206 to pull out the bearing 3, without the need for overall disassembly, to prevent the pump fluid from flowing out, and effectively improve the convenience and work efficiency of disassembly.

[0026] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A bearing disassembly device for a sliding valve type vacuum mechanical pump, characterized in that: It comprises a pump chamber end cover (1), a bearing (3) is mounted on the pump chamber end cover (1), a disassembly mechanism (2) is provided on one side of the bearing (3), and a fixing mechanism (4) is provided on the disassembly mechanism (2); The disassembly mechanism (2) comprises a support seat (201) and a lifting plate (202), wherein the lifting plate (202) is provided with a plurality of strip grooves (203), each of the plurality of strip grooves (203) is provided with a pull rod (204), one end of the pull rod (204) is threadedly connected to an adjusting nut (205) via a screw, and the other end of the pull rod (204) is fixedly connected to a snap-on ball head (206), and a disassembly screw rod (207) is rotatably connected to the support seat (201), and the disassembly screw rod (207) is rotatably connected to the support seat (201). A wrench (209) is fixedly connected to the end of the rod (207), a disassembly nut (208) is threadedly connected to the disassembly screw rod (207), a lower pressure plate (210) is fixedly connected to the outer side of the disassembly nut (208), a support frame (212) and a plurality of guide rods (211) are connected to the bottom of the support seat (201), a lever (213) is rotatably connected to the top of the support frame (212), and a return spring (214) is provided between the lever (213) and the support frame (212).

2. A bearing disassembly device for a sliding valve type vacuum mechanical pump according to claim 1, characterized in that: The diameter of the pull rod (204) is greater than the width of the strip groove (203), and the screw rod is arranged inside the strip groove (203).

3. A bearing disassembly device for a sliding valve type vacuum mechanical pump according to claim 1, characterized in that: The plurality of guide rods (211) are fixedly mounted on the support seat (201), and the lower pressing plate (210) is provided with a plurality of guide holes, and the lower pressing plate (210) is slidably connected to the guide rods (211) via the guide holes.

4. A bearing disassembly device for a sliding valve type vacuum mechanical pump according to claim 1, characterized in that: The clamping ball head (206) matches the clearance of the steel balls in the bearing (3), and the clamping ball head (206) is quenched.

5. The bearing disassembly device of a sliding valve type vacuum mechanical pump according to claim 1, characterized in that: The lever (213) comprises a long rod portion and a short rod portion, one end of the long rod portion contacts the bottom surface of the lower pressing plate (210), and one end of the short rod portion contacts the bottom surface of the lifting plate (202).

6. The bearing disassembly device of a sliding valve type vacuum mechanical pump according to claim 1, characterized in that: One end of the return spring (214) is fixedly connected to the lever (213), and the other end of the return spring (214) is fixedly connected to the support frame (212).

7. A bearing disassembly device for a sliding valve type vacuum mechanical pump according to claim 1, characterized in that: The fixing mechanism (4) comprises a plurality of electromagnets (401), and the plurality of electromagnets (401) are fixedly mounted on the bottom surface of the support seat (201).

8. The bearing disassembly device of a sliding valve type vacuum mechanical pump according to claim 7, characterized in that: The ends of the plurality of electromagnets (401) are connected to batteries (403) and switch buttons (402); the ends of the batteries (403) are connected to charging ports, and the charging ports are provided with dust plugs (404).

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