Double-cooling vertical screw vacuum pump

Abstract

The invention discloses a double-cooling vertical type screw vacuum pump, and relates to the technical field of screw vacuum pumps, the double-cooling vertical type screw vacuum pump comprises a pump body and two groups of moving shafts rotatably arranged in the pump body, outer covers are arranged at the top and the bottom of the pump body, spiral blades are fixedly arranged outside the moving shafts, a pump cover is arranged on the front surface of the pump body, and the pump cover is arranged in the pump body. A cleaning mechanism is arranged on the pump body; through the designed cleaning mechanism, when much dirt is attached to the outer surface of a spiral blade after long-time use, a pump cover is opened through an electric push rod, then a cleaning brush is driven by a hydraulic rod to move downwards to the front face of the spiral blade, at the moment, the back face of the cleaning brush is tightly attached to the surface of the spiral blade, and then a gear motor is started; the rotating movable shaft drives the spiral blade to rotate and drives the cleaning brush to move up and down in a reciprocating mode, so that dirt attached to the outer surface of the spiral blade is cleaned, the spiral blade does not need to be manually detached for cleaning, cleaning is convenient, and the service life of the screw vacuum pump is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of screw vacuum pumps, in particular to a double-cooling vertical screw vacuum pump. Background Art

[0002] The twin-screw vacuum pump forms a sealed vacuum chamber with a constant volume between the meshing spiral blades on the driving and driven shafts and the pump body or bushing. The medium is sent to the middle of the pump body respectively with the rotation of the driving shaft and the spiral blades. The two merge together and finally reach the pump outlet, thus achieving the purpose of pump delivery.

[0003] In the prior art, during the process of conveying liquid media, some dirt will adhere to the outer surface of the spiral blade. When used for a long time, a lot of dirt will accumulate, which will increase the running resistance of the screw vacuum pump and lead to increased power consumption. Long-term accumulation of dirt will cause equipment failure and shorten the service life of the pump. For this reason, we propose a double-cooling vertical screw vacuum pump. Summary of the invention

[0004] The object of the present invention is to provide a double-cooling vertical screw vacuum pump to solve the technical problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a double-cooling vertical screw vacuum pump, comprising a pump body, two sets of moving shafts rotatably arranged inside the pump body, the top and bottom of the pump body are both provided with outer covers, the outside of the moving shaft is fixedly provided with spiral blades, the front of the pump body is provided with a pump cover, and the pump body is provided with a cleaning mechanism, and the cleaning mechanism comprises: A moving assembly, arranged on the top of the pump body, is used to clean the outer surface of the spiral blade; A transmission assembly, disposed between the moving assembly and the moving shaft, and used to drive the moving assembly to move; The mounting assembly is arranged between the pump body and the pump cover and is used to drive the pump cover to open or close.

[0006] Preferably, the transmission assembly comprises a vertical gear rod and a mounting ring, a fixed bearing is sleeved on the outer side of the bottom of the vertical gear rod, an outer wheel is sleeved and fixed on the outer side of the moving shaft, and a first transmission belt is sleeved between the outer wheel and the fixed bearing; An extension plate is fixedly arranged on the outer side of the bottom of the vertical gear rod, and the interior of the extension plate is connected to a limiting screw rod through a threaded connection; A vertical plate is fixedly arranged on the top of the outer cover, and a fixing screw is threadedly connected inside the vertical plate.

[0007] Preferably, an inner gear ring is meshed on the outer side of the top of the vertical gear rod, and a second transmission belt is sleeved between the inner gear ring and the mounting ring; A support bearing is sleeved on the outside of the inner gear ring, and a connecting plate is fixedly arranged on the outer wall of the support bearing.

[0008] Preferably, a top plate is provided on the outer side of the top of the vertical gear rod, and a bracket is fixedly provided on one side of the top plate.

[0009] Preferably, the moving assembly includes an upper frame, a cleaning brush, a moving frame and a hydraulic rod fixed to the bottom of the top plate, a nut block is fixedly provided inside the moving frame, a screw rod is rotatably provided inside the upper frame, the top of the screw rod passes through the inside of the mounting ring, and a lower frame is fixedly provided at the bottom working end of the hydraulic rod.

[0010] Preferably, fixing rods are fixedly provided between both sides of the upper rack and the lower rack, and the bottoms of the fixing rods pass through the interior of the movable rack.

[0011] Preferably, the mounting assembly comprises electric push rods fixedly arranged on two sides of the pump body, and an L-shaped rod is fixedly arranged on the working end of the electric push rod; A sealing strip is fixedly arranged on the surface of the pump cover, and sealing grooves are provided on the surfaces of the pump body and the outer cover.

[0012] Preferably, a movable part is provided on the front of the cleaning brush, and the movable part includes two groups of inclined blocks fixed on the front of the cleaning brush. A middle plate is fixedly provided on the outside of the hydraulic rod, and inclined long blocks are fixedly provided on both side surfaces of the middle plate.

[0013] Preferably, two groups of T-shaped slide grooves are provided at the bottom of the bracket, T-shaped slide rails are slidably arranged inside the T-shaped slide grooves, a left plate is fixedly arranged between the two groups of T-shaped slide rails, a right plate is fixedly arranged at the bottom of the movable frame, and two groups of springs are fixedly arranged between the left plate and the right plate.

[0014] Preferably, two groups of cooling water outlet pipes are fixedly provided on the top of the pump body, and the tops of the cooling water outlet pipes pass through the interior of the outer cover, two groups of cooling water inlet pipes are fixedly provided on the bottom of the pump body, and the bottoms of the cooling water inlet pipes pass through the interior of the outer cover, and a cooling cavity is opened inside the pump body.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The cleaning mechanism of the present invention is designed so that when a lot of dirt adheres to the outer surface of the spiral blade after long-term use, the pump cover is opened by the electric push rod, and then the cleaning brush is driven by the hydraulic rod to move down to the front of the spiral blade. At this time, the back of the cleaning brush is in close contact with the surface of the spiral blade. Then the reduction motor is started, and the spiral blade is driven to rotate by the rotating shaft and the cleaning brush is driven to move up and down to clean the dirt attached to the outer surface of the spiral blade. There is no need to manually remove the spiral blade for cleaning, which is convenient for cleaning and improves the service life of the screw vacuum pump.

[0016] (2) The present invention has a movable part designed so that when the rotating screw drives the cleaning brush to move up and down to clean the dirt, the cleaning brush will move down and drive the inclined block to move down. Then the end inclined surface of the inclined block will hit the top inclined surface of the inclined long block. At this time, the inclined block moves in the direction close to the cleaning brush and drives the cleaning brush to move with it, so that the cleaning brush can be more closely attached to the surface of the spiral blade, thereby increasing the cleaning effect of the dirt on the surface of the spiral blade. Moreover, when the cleaning is completed, the cleaning brush and the bracket rise to the original position under the action of the hydraulic rod. During the process of the cleaning brush rising, the cleaning brush drives the inclined block to move away from the top inclined surface of the inclined long block, and then the cleaning brush moves in the direction away from the cleaning brush and drives the cleaning brush to move to its original position, so that the cleaning brush is less likely to collide with the pump body and the outer cover and be blocked by the pump body and the outer cover during the rising process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of the pump cover of the present invention when it is opened from the right side; Figure 3 It is a schematic diagram of the connection structure between the pump cover and the sealing strip of the present invention; Figure 4 It is a schematic diagram of the spiral leaf structure of the present invention; Figure 5 It is a schematic diagram of the cleaning brush structure of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of the middle part A; Figure 7 It is a schematic diagram of the connection structure between the nut block and the mobile frame of the present invention; Figure 8 This is a schematic diagram of the top plate structure of the present invention when viewed from the left and upward; Fig. 9 It is a bottom view structural schematic diagram of the mobile frame of the present invention; Fig.10 It is a schematic diagram of the structure of the oblique block and the oblique long block of the present invention; Fig.11 It is a schematic diagram of the front view and top view of the oblique long block of the present invention; In the figure: 100, pump body; 101, pump cover; 102, cooling water outlet pipe; 103, outer cover; 104, reduction motor; 105, outlet; 106, inlet; 107, spiral blade; 108, driving shaft; 109, synchronous gear; 200, electric push rod; 201, L-shaped rod; 202, bracket; 203, cleaning brush; 204, top plate; 207, vertical gear rod; 208, sealing strip; 209, hydraulic rod; 210, fixed rod; 211, screw rod; 212, outer wheel; 213, first transmission belt; 214. Limit screw; 215. Fixed bearing; 216. Fixed screw; 217. Extension plate; 218. Inner gear ring; 219. Support bearing; 220. Mounting ring; 221. Nut block; 222. Moving frame; 223. Upper frame; 224. Connecting plate; 225. Lower frame; 226. Second transmission belt; 227. Sealing groove; 300. Oblique block; 301. Oblique long block; 302. Middle plate; 303. T-shaped slide groove; 304. T-shaped slide rail; 305. Left plate; 306. Spring; 307. Right plate. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1 See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The present invention provides a technical solution: a double-cooling vertical screw vacuum pump, which is vertically installed on a device for conveying liquid, including a pump body 100, two sets of moving shafts 108 rotatably arranged inside the pump body 100, and the outsides of the two sets of moving shafts 108 are fixed with synchronous gears 109, and one set of moving shafts 108 can drive the other set of moving shafts 108 to rotate through the meshing between the two sets of synchronous gears 109 when rotating, so that the two sets of moving shafts 108 and the two sets of spiral blades 107 can rotate, and the two sets of synchronous gears 109 are meshed, and one side of the pump body 100 is respectively provided with an outlet 105 and an inlet 106, and the top and bottom of the pump body 100 are both provided with an outer cover 103, the outside of the moving shaft 108 is fixedly provided with a spiral blade 107, and the top of the outer cover 103 is fixedly provided with a reduction motor 104, and the front of the pump body 100 is provided with a pump cover 101, and the pump body 100 is provided with a cleaning mechanism, and the cleaning mechanism includes a moving component, a transmission component and a mounting component.

[0020] The transmission assembly includes a vertical gear rod 207 and a mounting ring 220. The bottom outer side of the mounting ring 220 is connected with a bolt through a thread, and the working end of the bolt contacts the outer wall of the screw rod 211. The bolt can make the mounting ring 220 and the screw rod 211 fixedly connected during the rotation of the screw rod 211. When the hydraulic rod 209 drives the movable frame 222 and the mounting ring 220 to descend, the bolt is unscrewed so that the working end of the bolt no longer contacts the outer wall of the screw rod 211, allowing the mounting ring 220 to Slide downward or upward on the screw rod 211, the bottom of the vertical gear rod 207 is rotatably connected with the outer cover 103, and a fixed bearing 215 is sleeved on the outer side of the bottom of the vertical gear rod 207. The fixed bearing 215 is composed of an inner ring, an outer ring and other structures. The inner ring is sleeved and fixed on the outside of the vertical gear rod 207, and the outer ring is in contact with the first transmission belt 213. The outer sleeve of the moving shaft 108 is fixed with an outer wheel 212, and the first transmission belt 213 is sleeved between the outer wheel 212 and the fixed bearing 215. An extension plate 217 is fixedly provided on the outer side of the bottom of the vertical gear rod 207. The interior of the extension plate 217 is connected to the limiting screw 214 through a thread, and the bottom of the limiting screw 214 extends to the surface of the fixed bearing 215. Through the limiting screw 214 and the fixing screw 216, when not cleaning, the fixing screw 216 is rotated in the direction close to the vertical gear rod 207 so that its working end contacts and clamps the vertical gear rod 207 to fix and limit it, and the limiting screw 214 is rotated upward so that its working end is separated from the outer ring of the fixed bearing 215. When the moving shaft 108 rotates to drive the spiral blade 107 to rotate and transport liquid, it will not drive the vertical gear rod 207 to rotate. When it is necessary to clean the dirt on the outer surface of the spiral blade 107, the fixing screw 216 is rotated in a direction away from the vertical gear rod 207 to make its working end separate from the surface of the vertical gear rod 207, and the limiting screw 214 is rotated downward to make its working end contact and fix the surface of the outer ring of the bearing 215, so that the outer ring is fixed to the vertical gear rod 207, and then when cleaning, when the moving shaft 108 rotates, it can drive the vertical gear rod 207 to rotate; A vertical plate is fixedly provided on the top of the outer cover 103, and a fixing screw 216 is threadedly connected to the inside of the vertical plate, and the working end of the fixing screw 216 can extend to the surface of the vertical gear rod 207; The top outer side of the vertical gear rod 207 is meshed with an inner gear ring 218. When the support bearing 219 is lowered or moved upward, it will drive the inner gear ring 218 to move on the vertical gear rod 207. A second transmission belt 226 is sleeved between the inner gear ring 218 and the mounting ring 220. The outer sleeve of the inner gear ring 218 is provided with a support bearing 219, and the outer wall of the support bearing 219 is fixedly provided with a connecting plate 224, and the end of the connecting plate 224 is fixed to one side of the moving frame 222, so that the support bearing 219 and the moving frame 222 are fixedly connected through the connecting plate 224; A top plate 204 is provided on the outer side of the top of the vertical gear rod 207, a bracket 202 is fixedly provided on one side of the top plate 204, and the bottom of the bracket 202 is fixed on the outer cover 103, and the bottom of the bracket 202 and the bottom of the vertical gear rod 207 are both provided on the outer cover 103 at the top of the pump body 100.

[0021] Embodiment 2 Based on Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 , Fig.10 and Fig.11 The moving assembly includes an upper frame 223, a cleaning brush 203, a moving frame 222 and a hydraulic rod 209 fixed to the bottom of the top plate 204. A nut block 221 is fixedly arranged inside the moving frame 222. A screw rod 211 is rotatably arranged inside the upper frame 223. The top of the screw rod 211 passes through the inside of the mounting ring 220. A lower frame 225 is fixedly arranged at the bottom working end of the hydraulic rod 209. The bottom of the screw rod 211 passes through the inside of the nut block 221 and extends to the inside of the lower frame 225. The bottom of the screw rod 211 is rotatably connected to the lower frame 225. Fixed rods 210 are fixedly arranged between both sides of the upper frame 223 and the lower frame 225, and the bottom of the fixed rods 210 passes through the interior of the movable frame 222; The installation assembly includes an electric push rod 200 fixedly arranged on two sides of the pump body 100, an L-shaped rod 201 is fixedly arranged at the working end of the electric push rod 200, and the pump cover 101 is fixed to the end of the L-shaped rod 201; A sealing strip 208 is fixedly provided on the surface of the pump cover 101, and sealing grooves 227 are provided on the surfaces of the pump body 100 and the outer cover 103. The sealing strip 208 can penetrate into the interior of the sealing groove 227. After closing the pump cover 101, the sealing strip 208 on the pump cover 101 penetrates into the corresponding sealing groove 227, thereby increasing the sealing between the pump cover 101 and the outer cover 103 as well as the pump body 100.

[0022] The cleaning mechanism of the present invention is designed. When a lot of dirt is attached to the outer surface of the spiral blade 107 after long-term use, the pump cover 101 is opened by the electric push rod 200, and then the cleaning brush 203 is moved down to the front of the spiral blade 107 under the drive of the hydraulic rod 209. At this time, the back of the cleaning brush 203 is in close contact with the surface of the spiral blade 107. Then the reduction motor 104 is started, and the spiral blade 107 is driven to rotate and the cleaning brush 203 is driven to reciprocate up and down by the rotating driving shaft 108, so as to clean the dirt attached to the outer surface of the spiral blade 107. There is no need to manually remove the spiral blade 107 for cleaning, which is convenient for cleaning and improves the service life of the screw vacuum pump.

[0023] During use, when cleaning the dirt attached to the spiral blade 107, first rotate the limit screw 214 downward, and then the bottom of the limit screw 214 contacts and clamps on the top of the outer surface of the fixed bearing 215, and then rotate the working end of the fixed screw 216 outward so that the working end is no longer in contact with the bottom outer wall of the vertical gear rod 207. At this time, the limit restriction of the working end of the fixed screw 216 on the vertical gear rod 207 can be released, and the two sets of electric push rods 200 are started. The working ends of the electric push rods 200 push outward to drive the L-shaped rod 201 and the pump cover 101 to move and open; Then, the hydraulic rod 209 is started, and the working end of the hydraulic rod 209 moves downward, driving the lower frame 225, the moving frame 222, the inner gear ring 218, the mounting ring 220, the cleaning brush 203 and other structures to move downward. Then, the cleaning brush 203 is located at the top position of the front side of the spiral blade 107, and the reduction motor 104 is started. The reduction motor 104 drives the driving shaft 108 to rotate, and the driving shaft 108 drives the spiral blade 107 to rotate. During the rotation process, the driving shaft 108 also drives the first transmission belt 213 and the outer ring in the fixed bearing 215 to rotate through the outer wheel 212, thereby driving the vertical gear rod 207 to rotate. When the vertical gear rod 207 rotates, it drives the external second transmission belt 226 to rotate, which can drive The mounting ring 220 rotates, and the mounting ring 220 drives the screw rod 211 to rotate. At this time, the nut block 221 located outside the screw rod 211 moves downward, driving the moving frame 222 to move, and the moving frame 222 drives the cleaning brush 203 to move along. At this time, the dirt on the outer surface of the rotating spiral leaf 107 can be cleaned. When the cleaning brush 203 moves downward to the bottom position, the reduction motor 104 is reversed, which can drive the driving shaft 108 and the spiral leaf 107 to reverse, and then drive the nut block 221 and the cleaning brush 203 to move upward. This reciprocating process can complete the cleaning. After cleaning is completed, the cleaning brush 203 can be restored to its original position according to the above-mentioned reverse principle, and the pump cover 101 can be closed.

[0024] Embodiment 3 Based on Example 2, please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 A movable part is provided on the front of the cleaning brush 203, and the movable part includes two sets of inclined blocks 300 fixed on the front of the cleaning brush 203. A middle plate 302 is fixedly provided on the outside of the hydraulic rod 209, and oblique long blocks 301 are fixedly provided on both sides of the middle plate 302; Two groups of T-shaped slide grooves 303 are provided at the bottom of the bracket 202, and T-shaped slide rails 304 are slidably arranged inside the T-shaped slide grooves 303. A left plate 305 is fixedly arranged between the two groups of T-shaped slide rails 304. A right plate 307 is fixedly arranged at the bottom of the movable frame 222, and two groups of springs 306 are fixedly arranged between the left plate 305 and the right plate 307.

[0025] The present invention has designed movable parts. When the rotating screw rod 211 drives the cleaning brush 203 to move up and down to clean the dirt, the cleaning brush 203 will drive the inclined block 300 to descend, and then the end inclined surface of the inclined block 300 will hit the top inclined surface of the inclined long block 301. At this time, the inclined block 300 moves in the direction close to the cleaning brush 203 and drives the cleaning brush 203 to move with it. At this time, the spring 306 is pulled by the cleaning brush 203 and begins to stretch, which can make the cleaning brush 203 more closely attached to the spiral leaf 107. The cleaning effect of the dirt on the surface of the spiral blade 107 is increased. After cleaning, the cleaning brush 203 moves to the top of the top slope of the oblique long block 301 after the nut block 221 moves upward to drive the oblique block 300 to move away from the top slope of the oblique long block 301. At this time, the spring 306 is reset, and the cleaning brush 203 is driven by the hydraulic rod 209 to rise. During the process, the cleaning brush 203 can reduce the collision with the pump body 100 and the outer cover 103 and the obstruction of the pump body 100 and the outer cover 103.

[0026] During use, when the rotating screw rod 211 drives the nut block 221 and the moving frame 222 to move downward, the cleaning brush 203 will be driven to move downward. During the downward movement, the end inclined surfaces of the two sets of inclined blocks 300 located at the front of the cleaning brush 203 will touch the top inclined surface of the lower inclined long block 301. At this time, the inclined block 300 will be squeezed by the inclined long block 301 and move toward the cleaning brush 203, driving the cleaning brush 203 and the T-shaped slide rail 304 to move. Then the back of the cleaning brush 203 is in close contact with the surface of the rotating spiral leaf 107, and then the cleaning brush 203 The rotating spiral blade 107 is cleaned to increase the cleaning effect. The cleaning brush 203 moves downward to a suitable position and then moves upward. The cleaning is repeated in this way. When the cleaning is completed, the cleaning brush 203 and the inclined block 300 move upward and return to the position above the inclined surface of the inclined long block 301. Then, under the action of the hydraulic rod 209, the cleaning brush 203, the movable frame 222 and other structures move upward. At this time, the cleaning brush 203 moving upward can reduce the collision with the pump body 100 and the outer cover 103 and the obstruction of the pump body 100 and the outer cover 103.

[0027] In this embodiment, two groups of cooling water outlet pipes 102 are fixedly provided on the top of the pump body 100, and the top of the cooling water outlet pipe 102 passes through the interior of the outer cover 103, and two groups of cooling water inlet pipes are fixedly provided at the bottom of the pump body 100. A chiller is connected at the cooling water inlet pipe, and a chiller is connected at the cooling water outlet pipe 102. The chiller injects cooling water from the cooling water inlet pipe into the cooling cavity to cool the temperature generated during operation. Moreover, two groups of cooling water outlet pipes 102 and cooling water inlet pipes are provided to achieve double cooling, thereby increasing the effect of dissipating the heat generated inside the screw vacuum pump during operation. Moreover, the bottom of the cooling water inlet pipe passes through the interior of the outer cover 103, and a cooling cavity is opened inside the pump body 100. The ends of the cooling water outlet pipe 102 and the cooling water inlet pipe extend to the interior of the cooling cavity.

[0028] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A double-cooling vertical screw vacuum pump, comprising a pump body (100), two sets of moving shafts (108) rotatably arranged inside the pump body (100), the top and bottom of the pump body (100) are both provided with outer covers (103), and the outside of the moving shaft (108) is fixedly provided with spiral blades (107), characterized in that: A pump cover (101) is provided on the front of the pump body (100), and a cleaning mechanism is provided on the pump body (100), the cleaning mechanism comprising: A moving component, disposed on the top of the pump body (100), for cleaning the outer surface of the spiral blade (107); A transmission assembly, disposed between the moving assembly and the moving shaft (108), and used to drive the moving assembly to move; The mounting assembly is arranged between the pump body (100) and the pump cover (101) and is used to drive the pump cover (101) to open or close.

2. A double-cooling vertical screw vacuum pump according to claim 1, characterized in that: The transmission assembly comprises a vertical gear rod (207) and a mounting ring (220); a fixed bearing (215) is sleeved on the outer side of the bottom of the vertical gear rod (207); an outer wheel (212) is sleeved and fixed on the outer side of the movable shaft (108); and a first transmission belt (213) is sleeved between the outer wheel (212) and the fixed bearing (215); An extension plate (217) is fixedly provided on the outer side of the bottom of the vertical gear rod (207), and the interior of the extension plate (217) is connected to a limiting screw rod (214) via a threaded connection; A vertical plate is fixedly provided on the top of the outer cover (103), and a fixing screw (216) is threadedly connected inside the vertical plate.

3. A double-cooling vertical screw vacuum pump according to claim 2, characterized in that: An inner gear ring (218) is meshed on the outer side of the top of the vertical gear rod (207), and a second transmission belt (226) is sleeved between the inner gear ring (218) and the mounting ring (220); A support bearing (219) is sleeved on the outside of the inner gear ring (218), and a connecting plate (224) is fixedly provided on the outer wall of the support bearing (219).

4. A double-cooling vertical screw vacuum pump according to claim 3, characterized in that: A top plate (204) is provided on the outer side of the top of the vertical gear rod (207), and a bracket (202) is fixedly provided on one side of the top plate (204).

5. A double-cooling vertical screw vacuum pump according to claim 4, characterized in that: The moving assembly comprises an upper frame (223), a cleaning brush (203), a moving frame (222), and a hydraulic rod (209) fixed to the bottom of the top plate (204); a nut block (221) is fixedly arranged inside the moving frame (222); a screw rod (211) is rotatably arranged inside the upper frame (223); the top of the screw rod (211) passes through the inside of the mounting ring (220); and a lower frame (225) is fixedly arranged at the bottom working end of the hydraulic rod (209).

6. A double-cooling vertical screw vacuum pump according to claim 5, characterized in that: Fixed rods (210) are fixedly arranged between both sides of the upper frame (223) and the lower frame (225), and the bottoms of the fixed rods (210) pass through the interior of the movable frame (222).

7. A double-cooling vertical screw vacuum pump according to claim 1, characterized in that: The mounting assembly comprises an electric push rod (200) fixedly arranged on two side surfaces of the pump body (100), and an L-shaped rod (201) is fixedly arranged on the working end of the electric push rod (200); A sealing strip (208) is fixedly provided on the surface of the pump cover (101), and sealing grooves (227) are provided on the surfaces of the pump body (100) and the outer cover (103).

8. A double-cooling vertical screw vacuum pump according to claim 5, characterized in that: A movable part is arranged on the front of the cleaning brush (203), and the movable part comprises two groups of inclined blocks (300) fixed on the front of the cleaning brush (203). A middle plate (302) is fixedly arranged on the outside of the hydraulic rod (209), and inclined long blocks (301) are fixedly arranged on both side surfaces of the middle plate (302).

9. A double-cooling vertical screw vacuum pump according to claim 8, characterized in that: Two groups of T-shaped slide grooves (303) are provided at the bottom of the bracket (202), T-shaped slide rails (304) are slidably provided inside the T-shaped slide grooves (303), a left plate (305) is fixedly provided between the two groups of T-shaped slide rails (304), a right plate (307) is fixedly provided at the bottom of the movable frame (222), and two groups of springs (306) are fixedly provided between the left plate (305) and the right plate (307).

10. A double-cooling vertical screw vacuum pump according to claim 1, characterized in that: Two groups of cooling water outlet pipes (102) are fixedly arranged on the top of the pump body (100), and the tops of the cooling water outlet pipes (102) pass through the interior of the outer cover (103); two groups of cooling water inlet pipes are fixedly arranged on the bottom of the pump body (100), and the bottoms of the cooling water inlet pipes pass through the interior of the outer cover (103); and a cooling cavity is provided inside the pump body (100).

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