Dynamic balance test device for production of fluoroplastic centrifugal pump

Abstract

A dynamic balance test device for fluoroplastic centrifugal pump production disclosed by the present invention comprises a base, the upper end of the base is fixedly provided with a gear motor, a test bench, a fixed seat and a support pile in sequence from left to right, and the upper end of the test bench is provided with a first slot; and two first transmission rods are horizontally and rotationally arranged on the inner walls of the front side and the rear side of the first open groove in a penetrating mode. A plurality of rotors are arranged in the three inclined discharging grooves, so that the air cylinder drives the L-shaped material blocking plate to limit the rotors in the inclined discharging grooves, the arc-shaped limiting blocks on the connecting blocks limit the rotors in the second open grooves in the guide seats, and the hydraulic cylinder drives the three guide seats to rotate to the test table. The rotor and the test wheels are in abutting contact, an operator does not need to carry out manual emptying detection, time and labor are saved, the speed reduction motor drives the plurality of test wheels to rotate and then carries out dynamic balance test on the rotor, dynamic balance detection can be carried out on multiple groups of rotors at the same time, and the test detection efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fluoroplastic centrifugal pump production, in particular to a dynamic balance test device for fluoroplastic centrifugal pump production. Background Art

[0002] Fluoroplastic centrifugal pumps can be used to transport any highly corrosive media and are widely used in the transportation of corrosive media in chemical production. Fluoroplastic centrifugal pumps need to be tested after production and assembly to ensure the best operation of the pump. The pump test is carried out after the pump is assembled, and some are carried out after the pumping system is installed on site. The centrifugal pump rotor is subjected to a dynamic balancing test to ensure that there is no imbalance in the rotor. The imbalance on the rotor is caused by the irregular mass distribution on the rotor. Dynamic balancing is used to detect the mass distribution on the rotor and detect the location of the imbalance.

[0003] In actual use, the existing centrifugal pump dynamic balancing test device requires the operator to manually place the rotor in the detection position, which is time-consuming and labor-intensive, and can only perform dynamic balancing tests on a single rotor, and the test efficiency is low. A dynamic balancing test device for fluoroplastic centrifugal pump production is proposed to solve the above problems. Summary of the invention

[0004] In view of the shortcomings and defects in the prior art, the present invention proposes a dynamic balancing test device for the production of fluoroplastic centrifugal pumps, which is used to solve the technical problems that the existing centrifugal pump dynamic balancing test device in the background technology requires the operator to manually place the rotor in the detection position during actual use, which is time-consuming and labor-intensive, and can only perform dynamic balancing tests on a single rotor, resulting in low test efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A dynamic balancing test device for the production of fluoroplastic centrifugal pumps comprises a base, wherein a reduction motor, a test bench, a fixed seat and a support pile are fixedly installed on the upper end of the base in sequence from left to right, wherein a first slot is provided on the upper end of the test bench, wherein two first transmission rods are horizontally rotatably penetrated on the inner walls on both sides of the front and rear sides of the first slot, and a second transmission rod is fixedly connected between two opposite first transmission rods, and test wheels are fixedly connected to one end of a plurality of the first transmission rods and two second transmission rods close to the left and right sides, and the two first transmission rods on the front side are both transmission-connected to the reduction motor, and three inclined loading platforms are fixedly connected to the upper end of the support pile, wherein the upper ends of the three inclined loading platforms are each provided with an inclined discharge trough, and a plurality of rotors are provided in the three inclined discharge troughs, and the upper end of the fixed seat is rotatably connected with a guide mechanism, and the guide mechanism is in contact with the three inclined loading platforms.

[0006] Preferably, the two second transmission rods are fixedly connected to the plurality of first transmission rods by means of couplings, and the two first transmission rods on the same horizontal plane are respectively arranged close to the left and right sides of the test bench.

[0007] Preferably, a rotating shaft is fixedly connected to the driving shaft of the reduction motor, a driving wheel is coaxially fixedly connected to the rotating shaft, a connecting rod is horizontally rotatably penetrated on the front inner wall of the first slot near the bottom, a driven wheel and a first gear are coaxially fixedly connected to the connecting rod at one end outside the first slot, the driving wheel and the driven wheel are connected by belt transmission, the two front first transmission rods are coaxially fixedly connected to the second gear at one end outside the first slot, and the two second gears are meshed with the first gear.

[0008] Preferably, a support frame is fixedly connected between the support piles and the three inclined loading platforms, a mounting seat is fixedly connected to the inclined end surface of the inclined loading platform near the lower end, a cylinder is fixedly installed on the mounting seat, an L-shaped material baffle plate is fixedly connected to the upper end of the cylinder piston rod, and the vertical section of the L-shaped material baffle plate passes through the bottom of the inclined discharge trough and is in contact with the leftmost rotor in the inclined discharge trough.

[0009] Preferably, the L-shaped baffle plate is made of wear-resistant alloy.

[0010] Preferably, the guide mechanism includes a support plate rotatably connected to the upper end of the fixed seat, the upper end of the support plate is fixedly connected to three guide seats, the three guide seats are respectively in contact with three inclined loading platforms, the three guide seats are each provided with a second slot connected to the left and right, the three second slots are fixedly connected to connecting blocks on the front and rear inner walls near the upper end of the guide seat, the three connecting blocks are fixedly connected to the side walls away from the inclined loading platform, and the arc-shaped lower end surface of the arc-shaped limit block is in contact with the rotor located in the second slot.

[0011] Preferably, the arc-shaped limit block is a wear-resistant rubber product.

[0012] Preferably, two limit slide grooves are provided on the inclined side wall of the support plate facing the test bench, and the two limit slide grooves are slidably connected with matching limit sliding blocks, and the two limit slide grooves are respectively arranged near the front and rear ends of the support plate, and the base is rotatably connected to two hydraulic cylinders near the upper end of the test bench, and the free ends of the two hydraulic cylinder piston rods are fixedly connected to the first rotating joints, and the ends of the two limit sliding blocks away from the limit slide grooves are fixedly connected to the second rotating joints, and the two first rotating joints are rotatably connected to the two second rotating joints respectively.

[0013] Compared with the prior art, the present invention has the following beneficial effects: By placing several rotors in the inclined discharge troughs on three inclined loading platforms, the cylinder drives the L-shaped baffle plate to limit the rotor in the inclined discharge trough, and the arc-shaped limit block on the connecting block limits the rotor in the second slot on the guide seat. The rotating hydraulic cylinder cooperates with the limit slide groove and the limit slide block to drive the three guide seats to rotate, so that the rotor is separated from the arc-shaped limit block under its own weight until the rotor contacts the test wheel. There is no need for the operator to manually discharge the material for inspection, which saves time and effort. The reduction motor drives several test wheels to rotate and then the rotor is dynamically balanced. Multiple groups of rotors can be dynamically balanced at the same time, thereby improving the efficiency of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A side perspective schematic diagram of a dynamic balancing test device for producing a fluoroplastic centrifugal pump proposed by the present invention; Figure 2 A schematic diagram of the top view of the structure of a test bench of a dynamic balancing test device for producing a fluoroplastic centrifugal pump proposed by the present invention; Figure 3 for Figure 2 A partial enlarged view of the middle A; Figure 4 for Figure 1 A partial enlarged view of point B in the middle; Figure 5 This is a structural schematic diagram of a support pile and an inclined loading platform of a dynamic balancing test device for fluoroplastic centrifugal pump production proposed by the present invention; Figure 6 for Figure 1 A partial enlarged view of point C in the middle; Figure 7 This is a schematic diagram of the structure of a guide mechanism of a dynamic balancing test device for producing a fluoroplastic centrifugal pump proposed by the present invention; Figure 8 for Figure 1 A partial enlarged view of point D in the middle.

[0015] In the figure: 1 base, 2 reduction motor, 3 test bench, 4 fixed seat, 5 support pile, 6 first slot, 7 first transmission rod, 8 second transmission rod, 9 test wheel, 10 tilting loading platform, 11 tilting discharge trough, 12 rotor, 13 coupling, 14 rotating shaft, 15 driving wheel, 16 connecting rod, 17 driven wheel, 18 first gear, 19 second gear, 20 support frame, 21 mounting seat, 22 cylinder, 23 L-type baffle plate, 24 support plate, 25 guide seat, 26 second slot, 27 connecting block, 28 arc limit block, 29 limit slide groove, 30 limit slide block, 31 hydraulic cylinder, 32 first rotating joint, 33 second rotating joint. DETAILED DESCRIPTION

[0016] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Reference Figure 1-8 As shown, a dynamic balancing test device for the production of fluoroplastic centrifugal pumps comprises a base 1, on the upper end of which a reduction motor 2, a test bench 3, a fixing seat 4 and a supporting pile 5 are fixedly installed in sequence from left to right, a first slot 6 is provided at the upper end of the test bench 3, two first transmission rods 7 are horizontally rotatably penetrated on the inner walls on both sides of the front and rear of the first slot 6, a second transmission rod 8 is fixedly connected between two opposite first transmission rods 7, a plurality of first transmission rods 7 and two second transmission rods 8 are fixedly connected to one end near the left and right sides with a test wheel 9, the two second transmission rods 8 are fixedly connected to the plurality of first transmission rods 7 by a coupling 13, the coupling 13 enables the two first transmission rods 7 on the left side to drive the two second transmission rods 8 and the two first transmission rods 7 on the right side to rotate simultaneously, and the two first transmission rods 7 on the same horizontal plane are respectively arranged near the left and right sides of the test bench 3.

[0019] The two first transmission rods 7 on the front side are both connected to the reduction motor 2 in transmission. A rotating shaft 14 is fixedly connected to the driving shaft of the reduction motor 2. A driving wheel 15 is coaxially fixedly connected to the rotating shaft 14. The reduction motor 2 drives the driving wheel 15 on the rotating shaft 14 to rotate. A connecting rod 16 is horizontally rotated and penetrated on the front inner wall of the first slot 6 near the bottom. The connecting rod 16 is coaxially fixedly connected to a driven wheel 17 and a first gear 18 on one end outside the first slot 6. The driving wheel 15 and the driven wheel 17 are connected by belt transmission. The rotation of the driving wheel 15 drives the driven wheel 17 connected with the belt transmission to rotate, and the rotation of the driven wheel 17 drives the coaxially connected The connecting rod 16 rotates, and the connecting rod 16 drives the first gear 18 to rotate, so that the first gear 18 drives the two meshing second gears 19 to rotate, and then the two second gears 19 drive the two first transmission rods 7 on the left side to rotate, and the two front first transmission rods 7 are coaxially fixedly connected with the second gear 19 on one end outside the first slot 6, and the two second gears 19 are meshed with the first gear 18. The two first transmission rods 7 on the left side cooperate with the coupling 13 to drive the two second transmission rods 8 and the two first transmission rods 7 on the right side to rotate at the same time, and the several first transmission rods 7 and the two second transmission rods 8 drive the several test wheels 9 to rotate.

[0020] The upper end of the support pile 5 is fixedly connected with three inclined material loading platforms 10, and the upper ends of the three inclined material loading platforms 10 are all provided with inclined material discharging troughs 11, and a plurality of rotors 12 are provided in the three inclined material discharging troughs 11. A support frame 20 is fixedly connected between the support pile 5 and the three inclined material loading platforms 10, and a mounting seat 21 is fixedly connected to the inclined end surface of the inclined material loading platform 10 near the lower end, and a cylinder 22 is fixedly installed on the mounting seat 21. The upper end of the piston rod of the cylinder 22 is fixedly connected with an L-shaped material baffle plate 23, and the vertical section of the L-shaped material baffle plate 23 passes through the bottom of the inclined material discharging trough 11 and contacts with the leftmost rotor 12 in the inclined material discharging trough 11. The material plate 23 is made of wear-resistant alloy. Several rotors 12 are placed in the inclined discharge grooves 11 on the three inclined loading platforms 10 respectively, and the cylinder 22 on the mounting seat 21 is started, so that the cylinder 22 drives the vertical section of the L-shaped baffle plate 23 to pass through the bottom of the inclined discharge groove 11 and contact the leftmost rotor 12 in the inclined discharge groove 11. The L-shaped baffle plate 23 can effectively restrict several rotors 12 in the inclined discharge groove 11. When and only when the cylinder 22 drives the L-shaped baffle plate 23 to shrink to the bottom of the inclined discharge groove 11, the rotor 12 can move along the inclined discharge groove 11 to the second slot 26 on the guide seat 25.

[0021] The upper end of the fixed seat 4 is rotatably connected with a guide mechanism, and the guide mechanism is in contact with the three inclined material loading platforms 10. The guide mechanism includes a support plate 24 rotatably connected to the upper end of the fixed seat 4, and the upper end of the support plate 24 is fixedly connected with three guide seats 25. The three guide seats 25 are respectively in contact with the three inclined material loading platforms 10. The three guide seats 25 are provided with second slots 26 connected to the left and right. The three second slots 26 are fixedly connected to the inner walls of the front and rear sides of the upper end of the guide seat 25. The three connecting blocks 27 are fixed on the side walls away from the inclined material loading platform 10. An arc-shaped limit block 28 is connected, and the arc-shaped lower end surface of the arc-shaped limit block 28 is in contact with the rotor 12 located in the second slot 26. The arc-shaped limit block 28 is a wear-resistant rubber product. When the guide seat 25 is abutted against the inclined loading platform 10, the rotor 12 moved into the second slot 26 is in contact with the arc-shaped limit block 28 on the connecting block 27, and the rotor 12 is limited in the second slot 26. When and only when the guide seat 25 rotates to the side of the test bench 3, the rotor 12 in the second slot 26 can be separated from the arc-shaped limit block 28 of the wear-resistant rubber product under the action of its own weight.

[0022] Two limiting slides 29 are provided on the inclined side wall of the support plate 24 facing the test bench 3, and matching limiting slide blocks 30 are slidably connected in the two limiting slides 29. The two limiting slides 29 are respectively arranged near the front and rear ends of the support plate 24. When the limiting slide blocks 30 move in the limiting slides 29, they can limit the rotation adjustment range of the support plate 24, thereby controlling the rotation adjustment range of the guide seat 25. The base 1 is rotatably connected to two hydraulic cylinders 31 near the upper end of the test bench 3. The free ends of the piston rods of the two hydraulic cylinders 31 are fixedly connected to the first rotating joints 32. The ends of the two limiting slide blocks 30 away from the limiting slides 29 are fixedly connected to the second rotating joints 33. The two first rotating joints 32 are respectively rotatably connected to the two second rotating joints 33. The hydraulic cylinder 31 rotatably connected on the base 1 is started, so that the hydraulic cylinder 31 cooperates with the first rotating joint 32 and the second rotating joint 33 rotatably connected to drive the support plate 24 rotatably connected on the fixed seat 4 to rotate and adjust under the limiting action of the limiting slides 29 and the limiting slide blocks 30.

[0023] When the present invention is in use, a plurality of rotors 12 are placed in the inclined discharge grooves 11 on the three inclined loading platforms 10, and the cylinder 22 on the mounting seat 21 is started, so that the cylinder 22 drives the vertical section of the L-shaped baffle plate 23 to penetrate the bottom of the inclined discharge groove 11 and contact the leftmost rotor 12 in the inclined discharge groove 11. When a dynamic balancing test is required, the cylinder 22 is started again to drive the L-shaped baffle plate 23 to shrink to the bottom of the inclined discharge groove 11, so that the leftmost rotor 12 in the three inclined discharge grooves 11 moves to the second slots 26 on the three guide seats 25, and the connecting block The arc-shaped limit block 28 on 27 limits the rotor 12 in the second slot 26, and at the same time, the cylinder 22 is started to drive the L-shaped baffle plate 23 to limit the remaining rotors 12 in the inclined discharge trough 11, and the hydraulic cylinder 31 rotatably connected to the base 1 is started, so that the hydraulic cylinder 31 cooperates with the first rotating joint 32 and the second rotating joint 33 rotatably connected to drive the support plate 24 rotatably connected to the fixed seat 4, and rotates and adjusts under the limiting action of the limiting slide 29 and the limiting slider 30, and the support plate 24 drives the three guide seats 25 to rotate to the side of the test bench 3. At this time, the second slots on the three guide seats 25 The rotor 12 in 26 is separated from the arc-shaped limit block 28 of the wear-resistant rubber product under the action of its own weight, until the rotor 12 is released from the second slot 26 and then placed on the four test wheels 9 on the first transmission rod 7 and the second transmission rod 8 of the same group, without the operator manually discharging the material for inspection, saving time and effort, starting the reduction motor 2 to drive the driving wheel 15 on the rotating shaft 14 to rotate, so that the driving wheel 15 rotates to drive the driven wheel 17 connected to the belt drive to rotate, so that the driven wheel 17 rotates to drive the coaxially connected connecting rod 16 to rotate, and the connecting rod 16 drives the first gear 18 to rotate, so that the first gear 18 The two meshing second gears 19 are driven to rotate, and then the two second gears 19 drive the two first transmission rods 7 on the left to rotate, and the two first transmission rods 7 on the left cooperate with the coupling 13 to drive the two second transmission rods 8 and the two first transmission rods 7 on the right to rotate at the same time, and the several first transmission rods 7 and the two second transmission rods 8 drive the several test wheels 9 to rotate, so that multiple groups of rotors 12 can be dynamically balanced at the same time, thereby improving the efficiency of the test. After the test is completed, the hydraulic cylinder 31 is started again to drive the three guide seats 25 to reset and then dock with the three inclined loading platforms 10, and the above steps are repeated.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dynamic balancing test device for the production of fluoroplastic centrifugal pumps, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly mounted with a reduction motor (2), a test bench (3), a fixed seat (4) and a support pile (5) in sequence from left to right. The upper end of the test bench (3) is provided with a first slot (6). Two first transmission rods (7) are horizontally rotatably penetrated on the inner walls of the front and rear sides of the first slot (6). A second transmission rod (8) is fixedly connected between two first transmission rods (7) opposite to the first transmission rods (7). A plurality of first transmission rods (7) and two second transmission rods (8) are fixedly connected to test wheels (9) at one end close to the left and right sides. The two first transmission rods (7) at the front are transmission-connected to the reduction motor (2). The upper end of the support pile (5) is fixedly connected with three inclined material loading platforms (10). The upper ends of the three inclined material loading platforms (10) are provided with inclined material discharge grooves (11). The three inclined material discharge grooves (11) are provided with a plurality of rotors (12). The upper end of the fixed seat (4) is rotatably connected with a guide mechanism, and the guide mechanism is in contact with the three inclined material loading platforms (10).

2. A dynamic balance test device for fluoroplastic centrifugal pump production according to claim 1, characterized in that: The two second transmission rods (8) are fixedly connected to the plurality of first transmission rods (7) by means of a coupling (13), and the two first transmission rods (7) on the same horizontal plane are respectively arranged close to the left and right sides of the test bench (3).

3. A dynamic balance test device for fluoroplastic centrifugal pump production according to claim 1, characterized in that: A rotating shaft (14) is fixedly connected to the driving shaft of the reduction motor (2), and a driving wheel (15) is coaxially fixedly connected to the rotating shaft (14). A connecting rod (16) is horizontally rotatably penetrated on the front inner wall of the first slot (6) near the bottom, and a driven wheel (17) and a first gear (18) are coaxially fixedly connected to the connecting rod (16) at one end outside the first slot (6). The driving wheel (15) and the driven wheel (17) are connected by belt transmission. Two front first transmission rods (7) are coaxially fixedly connected to second gears (19) at one end outside the first slot (6), and the two second gears (19) are meshed with the first gear (18).

4. A dynamic balancing test device for fluoroplastic centrifugal pump production according to claim 1, characterized in that: A support frame (20) is fixedly connected between the support pile (5) and the three inclined material loading platforms (10); a mounting seat (21) is fixedly connected to the inclined end surface of the inclined material loading platform (10) near the lower end; a cylinder (22) is fixedly mounted on the mounting seat (21); an L-shaped material baffle plate (23) is fixedly connected to the upper end of the piston rod of the cylinder (22); a vertical section of the L-shaped material baffle plate (23) passes through the bottom of the inclined material discharge trough (11) and contacts the leftmost rotor (12) in the inclined material discharge trough (11).

5. A dynamic balance test device for fluoroplastic centrifugal pump production according to claim 4, characterized in that: The L-shaped baffle plate (23) is made of wear-resistant alloy.

6. A dynamic balance test device for fluoroplastic centrifugal pump production according to claim 1, characterized in that: The guide mechanism comprises a support plate (24) rotatably connected to the upper end of the fixed seat (4); the upper end of the support plate (24) is fixedly connected to three guide seats (25); the three guide seats (25) are respectively in contact with the three inclined material loading platforms (10); the three guide seats (25) are each provided with a second slot (26) connected to the left and right; the three second slots (26) are each fixedly connected to a connecting block (27) on the inner walls on both sides of the front and rear sides close to the upper end of the guide seat (25); the three connecting blocks (27) are each fixedly connected to an arc-shaped limiting block (28) on the side wall away from the inclined material loading platform (10); the arc-shaped lower end surface of the arc-shaped limiting block (28) is in contact with the rotor (12) located in the second slot (26).

7. A dynamic balance test device for fluoroplastic centrifugal pump production according to claim 6, characterized in that: The arc-shaped limit block (28) is made of wear-resistant rubber.

8. A dynamic balance test device for fluoroplastic centrifugal pump production according to claim 1, characterized in that: Two limiting slide grooves (29) are provided on the inclined side wall of the support plate (24) facing the test bench (3), and matching limiting slide blocks (30) are slidably connected in the two limiting slide grooves (29). The two limiting slide grooves (29) are respectively arranged near the front and rear ends of the support plate (24). The upper end of the base (1) near the test bench (3) is rotatably connected to two hydraulic cylinders (31), and the free ends of the piston rods of the two hydraulic cylinders (31) are fixedly connected to a first rotating joint (32). The ends of the two limiting slide blocks (30) away from the limiting slide grooves (29) are fixedly connected to a second rotating joint (33), and the two first rotating joints (32) are rotatably connected to the two second rotating joints (33) respectively.

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