Corrosion-resistant impeller of water-ring vacuum pump

Abstract

The utility model relates to the field of impellers, in particular to a corrosion-resistant impeller of a water-ring vacuum pump, which comprises a pump body, a seat-mounted mechanism and an independent-mounted mechanism, the right side of the pump body is provided with the seat-mounted mechanism for disassembling and assembling an impeller assembly, the right end of the seat-mounted mechanism is provided with an impeller disc, and the right side of the impeller disc is provided with the independent-mounted mechanism for independently disassembling and assembling a blade body. When the blades need to be maintained, the knob is twisted to drive the screw rod to rotate, the clamping plate is meshed to move outwards in the open groove to be separated from the clamping groove, the clamping plate is stably separated under the limiting effect that the limiting plate is embedded in the limiting groove, each blade can be independently pulled outwards, and the blades needing to be maintained can be independently disassembled and maintained conveniently; according to the impeller, all the blades do not need to be maintained uniformly, the maintenance efficiency is improved, convenience is brought to the maintenance process, and therefore the impeller can be maintained frequently, and the corrosion-resistant effect of the impeller is improved.

Description

Technical Field

[0001] The utility model relates to the field of impellers, in particular to a corrosion-resistant impeller of a water ring vacuum pump. Background Art

[0002] At present, all the water ring vacuum pumps in operation in the world are made of metal materials. The cutting and corrosion of water ring vacuum pumps are very serious and prominent during operation. Since the water ring vacuum pump adopts the form of water sealing, during the operation of the equipment, the highly rotating movement of the water in the pump body will produce the effect of cutting water knife, which will produce linear cutting on the pump body, causing the pump body to be scrapped due to damage caused by cutting. Due to the environment in which the water ring vacuum pump is located, its workpieces are also subject to various serious corrosions, including water corrosion, medium corrosion, electrochemical corrosion and the most deadly cavitation. These corrosions reduce the efficiency and performance of water ring vacuum pumps that require high precision of component matching, thus accelerating the maintenance frequency.

[0003] The main components of the existing water ring vacuum pump, pump body, pump cover, disc and impeller, are all made of polyoxymethylene as the base material and reinforced with glass fiber, which greatly improves its corrosion resistance and wear resistance. The addition of carbon fiber can improve the toughness of the main components. Since the molecular density of the composite material has a small coefficient of thermal expansion, it will not cause the problem of swelling and damaging the pump. By changing the material of the components, the weight and operating noise of the pump are greatly reduced, and the service life of the pump is extended;

[0004] However, the impeller disk of the existing impeller is relatively fixed to the wheel shaft by multiple bolts. During the disassembly process, each bolt needs to be engaged and disassembled with a screwdriver, which brings trouble to the disassembly process. In addition, the blades of the existing impeller are installed on the impeller disk by welding. When maintaining the impeller disk, all blades need to be maintained, but not all blades are corrosive, thereby reducing the efficiency of maintenance. Utility Model Content

[0005] The utility model aims to provide a corrosion-resistant impeller for a water ring vacuum pump, which is used to solve the problem that the impeller disc of the existing impeller is relatively fixed to the wheel shaft by multiple bolts, and each bolt needs to be engaged and disassembled with a screwdriver during the disassembly process, which brings trouble to the disassembly process, and the blades of the existing impeller are installed on the impeller disc by welding. When maintaining the impeller disc, all blades need to be maintained, but not all blades are corrosive, thereby reducing the efficiency of maintenance.

[0006] Therefore, the utility model provides a corrosion-resistant impeller of a water ring vacuum pump, including a pump body, a seat mounting mechanism and a separate mounting mechanism. A seat mounting mechanism for disassembling and assembling an impeller assembly is arranged on the right side of the pump body, an impeller disc is installed at the right end of the seat mounting mechanism, and a separate mounting mechanism for disassembling and assembling the sheet body is arranged on the right side of the impeller disc.

[0007] Preferably: the seating mechanism comprises a slot, an insertion shaft is inserted in the slot, the upper and lower side walls of the insertion shaft are provided with card slots, the side walls at both ends of the slot are provided with slots, a screw is installed in the slot, a card plate is mounted on the outer wall of the screw, a limiting slot is provided on the slotted side wall, a limiting plate is installed on the card plate side wall, and a knob is connected to the outer end of the screw.

[0008] Preferably: the single-installation mechanism includes an embedding groove, a blade is inserted in the embedding groove, a positioning groove is opened on the right side wall of the blade, a side groove is opened on the right side wall of the embedding groove, a positioning plate is inserted in the side groove and the positioning groove, a cover plate is installed at one end of the positioning plate, the first screw groove is opened on the outer wall of the right end of the impeller disk, the cover plate is penetrated by a second screw groove, and bolts are installed in the second screw groove and the first screw groove.

[0009] Preferably, the cross-sectional dimensions of the limiting groove and the cross-sectional dimensions of the limiting plate are consistent with each other.

[0010] Preferably, the cross-sectional dimensions of the card plate and the cross-sectional dimensions of the card slot are consistent with each other.

[0011] Preferably, the cross-sectional dimensions of the positioning groove and the cross-sectional dimensions of the positioning plate coincide with each other.

[0012] Preferably, the threads on the outer wall of the bolt are meshed with the threads on the inner walls of the first screw groove and the second screw groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model discloses that when it is necessary to maintain the blades, the knob is twisted to drive the screw to rotate, and the meshing drives the clamping plate to move outward in the slot to disengage it from the clamping slot. When the limit plate is embedded in the limit slot, the clamping plate is stably disengaged, and the impeller disk is pulled to the right to drive the plug shaft to disengage from the slot, and the impeller disk can be removed separately, and the bolt is twisted to disengage it from the first screw groove and the second screw groove, and the cover plate is pulled to the right to drive the positioning plate to move rightward from the side groove, and at the same time, the positioning plate is disengaged from the positioning groove, and each blade can be pulled outward separately, so that the blades that need to be maintained can be disassembled and maintained separately, and there is no need to perform unified maintenance on all blades, which improves the efficiency of maintenance and brings convenience to the maintenance process, so that maintenance can be performed frequently, which also improves the corrosion resistance of the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a front-view three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a top view cross-sectional view of the rear view mechanism of the utility model;

[0017] Figure 3 It is a front cross-sectional view of the seat-mounted mechanism and the single-mounted mechanism of the utility model;

[0018] Figure 4 For this utility model Figure 3 A is a partial enlarged view.

[0019] In the figure: 1. pump body; 201. slot; 202. plug-in shaft; 203. slot; 204. slot; 205. screw; 206. knob; 207. clamping plate; 208. limit slot; 209. limit plate; 3. impeller disk; 401. embedded slot; 402. blade; 403. positioning slot; 404. side slot; 405. positioning plate; 406. first screw slot; 407. cover plate; 408. second screw slot; 409. bolt. DETAILED DESCRIPTION

[0020] 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.

[0021] Example 1

[0022] See also Figure 1-4 The figure shows a preferred embodiment of the utility model, a corrosion-resistant impeller of a water ring vacuum pump, including a pump body 1, a seat mounting mechanism and a separate mounting mechanism. A seat mounting mechanism for disassembling and assembling the impeller assembly is arranged on the right side of the pump body 1, an impeller disc 3 is installed on the right end of the seat mounting mechanism, and a separate mounting mechanism for disassembling and assembling the sheet body is arranged on the right side of the impeller disc 3.

[0023] It should be noted that the seat-mounted mechanism and the single-mounted mechanism of this solution improve the convenience of maintenance of the impeller.

[0024] Among them, the seat mounting mechanism includes a slot 201, an insertion shaft 202 is inserted in the slot 201, and the upper and lower side walls of the insertion shaft 202 are provided with a card slot 203, and the side walls at both ends of the slot 201 are provided with a slot 204, a screw 205 is installed in the slot 204, and the outer wall of the screw 205 is provided with a card plate 207, a limiting slot 208 is provided on the side wall of the slot 204, and a limiting plate 209 is installed on the side wall of the card plate 207, and the outer end of the screw 205 is connected to a knob 206.

[0025] It should be noted that this solution is convenient for quick disassembly and assembly.

[0026] The cross-sectional dimensions of the limiting groove 208 and the cross-sectional dimensions of the limiting plate 209 are consistent with each other.

[0027] It should be noted that this solution makes the disassembly and assembly process more stable.

[0028] The cross-sectional dimensions of the clamping plate 207 and the cross-sectional dimensions of the clamping slot 203 coincide with each other.

[0029] It should be noted that this solution is more secure to install.

[0030] Example 2

[0031] See also Figure 1-4 The single-installation mechanism includes an embedding groove 401, a blade 402 is inserted in the embedding groove 401, a positioning groove 403 is opened on the right side wall of the blade 402, a side groove 404 is opened on the right side wall of the embedding groove 401, a positioning plate 405 is inserted in the side groove 404 and the positioning groove 403, a cover plate 407 is installed at one end of the positioning plate 405, the first screw groove 406 is opened on the outer wall of the right end of the impeller disk 3, the cover plate 407 is penetrated by a second screw groove 408, and bolts 409 are installed in the second screw groove 408 and the first screw groove 406.

[0032] It should be noted that this solution facilitates the separate disassembly and maintenance of the blades 402 .

[0033] The cross-sectional dimensions of the positioning groove 403 and the cross-sectional dimensions of the positioning plate 405 are consistent with each other.

[0034] It should be noted that this solution is more secure to install.

[0035] The threads on the outer wall of the bolt 409 mesh with the threads on the inner walls of the first screw groove 406 and the second screw groove 408 .

[0036] It should be noted that this solution makes disassembly and assembly more convenient.

[0037] The working process and principle of the utility model are as follows: when it is necessary to maintain the blade 402, the knob 206 is twisted to drive the screw 205 to rotate, and the meshing drives the card plate 207 to move outward in the slot 204 to disengage it from the card slot 203. Under the limit of the limit plate 209 embedded in the limit slot 208, the card plate 207 is stably disengaged, and the impeller disk 3 is pulled to the right to drive the plug shaft 202 to disengage from the slot 201, and the impeller disk 3 can be disassembled separately, and the bolt 409 is twisted to disengage it from the first screw groove 406 and the second screw groove 408, and the cover plate 407 is pulled to the right to drive the positioning plate 405 to move rightward from the side groove 404, and at the same time, the positioning plate 405 is disengaged from the positioning groove 403, and each blade 402 can be pulled outward separately, so that the blade 402 that needs to be maintained can be disassembled and maintained separately, and there is no need to perform unified maintenance on all blades 402, thereby improving the efficiency of maintenance and bringing convenience to the maintenance process.

[0038] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make some simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A corrosion-resistant impeller of a water ring vacuum pump, characterized in that: The invention comprises a pump body (1), a seat-mounting mechanism and a separate-mounting mechanism, wherein the right side of the pump body (1) is provided with a seat-mounting mechanism for disassembling and assembling an impeller assembly, the right end of the seat-mounting mechanism is provided with an impeller disc (3), and the right side of the impeller disc (3) is provided with a separate-mounting mechanism for disassembling and assembling a disc separately.

2. The corrosion-resistant impeller of a water ring vacuum pump according to claim 1, characterized in that: The seat mounting mechanism comprises a slot (201), an insertion shaft (202) is inserted in the slot (201), a clamping groove (203) is provided on the upper and lower side walls of the insertion shaft (202), slots (204) are provided on the side walls at both ends of the slot (201), a screw rod (205) is installed in the slot (204), a clamping plate (207) is sleeved on the outer wall of the screw rod (205), a limiting groove (208) is provided on the side wall of the slot (204), a limiting plate (209) is installed on the side wall of the clamping plate (207), and a knob (206) is connected to the outer end of the screw rod (205).

3. The corrosion-resistant impeller of a water ring vacuum pump according to claim 1, characterized in that: The single-installation mechanism comprises an embedding groove (401), a blade (402) is inserted in the embedding groove (401), a positioning groove (403) is provided on the right side wall of the blade (402), a side groove (404) is provided on the right side wall of the embedding groove (401), a positioning plate (405) is inserted in the side groove (404) and the positioning groove (403), a cover plate (407) is installed at one end of the positioning plate (405), a first screw groove (406) is provided on the outer wall of the right end of the impeller disk (3), a second screw groove (408) is provided through the cover plate (407), and bolts (409) are installed in the second screw groove (408) and the first screw groove (406).

4. The corrosion-resistant impeller of a water ring vacuum pump according to claim 2, characterized in that: The cross-sectional dimensions of the limiting groove (208) match the cross-sectional dimensions of the limiting plate (209).

5. The corrosion-resistant impeller of a water ring vacuum pump according to claim 2, characterized in that: The cross-sectional dimensions of the clamping plate (207) match the cross-sectional dimensions of the clamping slot (203).

6. The corrosion-resistant impeller of a water ring vacuum pump according to claim 3, characterized in that: The cross-sectional dimensions of the positioning groove (403) match the cross-sectional dimensions of the positioning plate (405).

7. The corrosion-resistant impeller of a water ring vacuum pump according to claim 3, characterized in that: The threads on the outer wall of the bolt (409) are meshed with the threads on the inner walls of the first screw groove (406) and the second screw groove (408).

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