Improved variable frequency pump

Abstract

The utility model discloses an improved variable frequency pump, which is applied in the field of mechanical equipment and comprises a casing and a rotor assembly, two ends of the casing are respectively bolted with a front cover and a rear cover, the bottom of the front cover and the other side of the rear cover are respectively bolted with a bottom foot and a fan cover, a stator iron core is fixedly sleeved inside the casing, and the stator iron core is fixedly sleeved outside the rotor assembly. A coil is wound in the stator core, fan blades are arranged in the fan cover, an electric control mechanism is arranged on the top of the machine shell, a pump assembly is arranged in the front cover, and a pressurizing assembly is arranged on the top of the machine shell. The energy consumption used during operation can be reduced, the household use is more convenient, the household use cost is reduced, a specially-assigned person is not needed for opening, and the practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment field, especially a kind of improved variable frequency pump. BACKGROUND

[0002] Variable frequency pump is a kind of pump that can automatically adjust motor speed according to water flow and pressure change, and variable frequency pump can be widely applied in high-rise building, pharmaceutical, medical equipment, automobile, food processing, chemical industry, petrochemical industry, papermaking, mining and electric power etc.

[0003] Although the existing variable frequency pump is high in strength and good in corrosion resistance, and stable in performance, other problems still exist in use process, such as inconvenience in household use, low motor efficiency, leading to high household use, frequent opening and special person to watch in use, and the product is not intelligent, in order to solve the above-mentioned problems, an improved variable frequency pump is provided. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an improved variable frequency pump, which solves the problems of high energy consumption and lack of intelligent control of the existing variable frequency pump.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: an improved variable frequency pump, comprising a casing and a rotor assembly, the two ends of the casing are respectively bolted with a front cover and a rear cover, the bottom of the front cover and the other side of the rear cover are respectively bolted with a foot and a fan cover, the inside of the casing is fixedly sleeved with a stator core, the inside of the stator core is wound with a coil, the inside of the fan cover is provided with a fan blade, the top of the casing is provided with an electric control mechanism, the inside of the front cover is provided with a pump assembly, and the top of the casing is provided with a pressurizing assembly.

[0006] The above technical scheme can reduce the energy consumption during operation, make household use more convenient, reduce household use cost, and does not need special person to open, so it is high in practicability.

[0007] The utility model is further provided as follows: the rotor assembly comprises a welded shaft, the two ends of the surface of the welded shaft are respectively fixedly sleeved with a first bearing and a second bearing, the first bearing and the second bearing are respectively embedded in the inside of the front cover and the rear cover, a wave washer is installed between the second bearing and the rear cover, the middle part of the surface of the welded shaft is fixedly sleeved with a rotor ball, the inside of the rotor ball is bonded with a magnetic steel, and the inside of the fan blade is fixedly sleeved on the surface of the welded shaft through a snap ring.

[0008] The utility model further sets up: the electric control mechanism includes the junction box, the junction box is shackleed in the top of the casing, the bottom and the inside of the junction box are respectively shackleed with the fin and control panel, the top of the junction box is shackleed with the box cover, the inside of the box cover is installed with the key board, the key board and control panel are inserted with the wire harness between.

[0009] The utility model further sets up: the pump assembly includes the backing disc, the other side fixed sleeve joint of backing disc and front cover, the side of backing disc is respectively fixed sleeve joint with mechanical seal static ring and mechanical seal dynamic ring, the other side and the inside of backing disc are respectively fixed sleeve joint with water outlet guide vane and water baffle, the other side of water outlet guide vane is provided with water inlet guide vane, the other side of water inlet guide vane is provided with the press plate, the surface of press plate is installed with two shelf draw hooks, the other side of shelf draw hook is connected with backing disc, the other side fixed sleeve joint of backing disc has the pump body, the surface of pump body is penetrated and is connected with the air nail of screw thread, the surface fixed sleeve joint of pump body has the first O type sealing ring, the inside fixed sleeve joint of press plate has the connecting pipe, the surface of press plate and the inside of pump body are installed with the second O type sealing ring, the surface of pump body is installed with the throat clamp, the side of backing disc is provided with the positioning shaft sleeve, impeller, shaft sleeve, lock shaft sleeve and locknut fixed sleeve joint with welding shaft respectively.

[0010] The utility model further sets up: the pressurization subassembly includes five, the bottom end of five is connected with the top end of pump body of screw thread, the front end and the rear end of five are connected with pressure gauge and pressure sensor of screw thread respectively, the top end of five is connected with check valve body of screw thread, the inside installation of check valve body has check valve core, installs the spring between check valve core and check valve body, the top of check valve body is connected with pressure tank of screw thread.

[0011] Summarized above, the utility model has following beneficial effect:

[0012] The utility model discloses a corresponding parameter value is set to the key board, starts the product work, and pressure sensor receives actual water pressure signal, and is transmitted to the controller, and the controller controls the motor operating state through the difference between actual pressure and setting pressure, and the motor drives the pump part to work, so that actual pressure reaches the pressure value that the electric control part sets, when starting the product for the first time, must unscrew the air nail, fills the water to the pump cavity of pump part, and after the air in the interior is exhausted, tightens the air nail, opens the power supply, sets the corresponding parameter, starts the product work button, and the electric control part drives the motor, and then the motor drives the pump part to work, so that the pressure reaches the value that wants to set, observes the control panel parameter, adjusts to the appropriate parameter value through the function of up and down keys, can reduce the energy consumption used when operating, makes the family use more convenient, reduces the family use cost, and does not need the special person to look after and open, and the practicality is high. ACCURACY OF DRAWINGS

[0013] Figure 1 is the three-dimensional explosion schematic view of the utility model structure;

[0014] Figure 2 is the partial structure explosion schematic view of the utility model;

[0015] Figure 3 is the rotor assembly schematic view of the utility model;

[0016] Figure 4 is the electric control mechanism schematic view of the utility model;

[0017] Figure 5 is the pump assembly schematic view of the utility model;

[0018] Figure 6 is the pressurizing assembly schematic view of the utility model.

[0019] Reference signs: 1, casing; 2, rotor assembly; 21, welded shaft; 22, first bearing; 23, second bearing; 24, rotor ball; 25, magnetic steel; 3, back cover; 4, bottom foot; 5, fan cover; 6, stator core; 7, coil; 8, fan blade; 9, electric control mechanism; 91, junction box; 92, heat sink; 93, control board; 94, box cover; 95, key board; 96, wire; 10, pump assembly; 101, lining disc; 102, mechanical seal static ring; 103, mechanical seal dynamic ring; 104, water outlet guide vane; 105, water inlet guide vane; 106, pressing plate; 107, shelf pull hook; 108, pump body; 109, first O-shaped sealing ring; 1001, connecting pipe; 1002, second O-shaped sealing ring; 1003, throat clamp; 1004, positioning shaft sleeve; 1005, impeller; 1006, shaft sleeve; 1007, locking shaft sleeve; 1008, lock nut; 1009, air nail; 1010, water baffle; 11, pressurizing assembly; 111, five-way; 112, pressure gauge; 113, pressure sensor; 114, check valve body; 115, check valve core; 116, spring; 117, pressure tank; 12, front cover. DETAILED DESCRIPTION

[0020] The utility model will be further explained in detail below in connection with the drawings.

[0021] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The utility model provides an improved variable frequency pump, including casing 1 and rotor assembly 2, and the both ends of casing 1 are bolted with front cover 12 and rear cover 3 respectively, and the bottom of front cover 12 and the other side of rear cover 3 are bolted with bottom foot 4 and fan cover 5 respectively, and the inside of casing 1 is fixedly sleeved with stator core 6, and the inside of stator core 6 is wound with coil 7, and the inside of fan cover 5 is provided with fan blade 8, and the top of casing 1 is provided with electric control mechanism 9, and the inside of front cover 12 is provided with pump assembly 10, and the top of casing 1 is provided with pressurizing assembly 11, and the corresponding parameter value is set through key plate 95, and the product is started to work, and pressure sensor 113 receives actual water pressure signal and is transmitted to controller, and the controller controls the running state of motor through the difference between actual pressure and set pressure, and motor drives pump part to work, so that actual pressure reaches the pressure value set by electric control part, when starting the product for the first time, air nail 1009 must be unscrewed, pump cavity of pump part is filled with water, air in the inside is exhausted, and air nail 1009 is screwed tightly, power is turned on, corresponding parameters are set, product working key is started, electric control part drives motor, then motor drives pump part to work, so that pressure reaches the set value, control panel parameters are observed, and the appropriate parameter value is adjusted through up and down key function, which can reduce the energy consumption during operation, make the use of family more convenient, reduce the use cost of family, and do not need special person to open, so the utility model has high practicality.

[0022] Reference Figure 1 And Figure 3 Rotor assembly 2 includes welded shaft 21, and the both ends of the surface of welded shaft 21 are fixedly sleeved with first bearing 22 and second bearing 23 respectively, and first bearing 22 and second bearing 23 are embedded in the inside of front cover 12 and rear cover 3 respectively, and wave washer is installed between second bearing 23 and rear cover 3, and the middle part of the surface of welded shaft 21 is fixedly sleeved with rotor ball 24, and the inside of rotor ball 24 is bonded with magnet steel 25, and the inside of fan blade 8 is fixedly sleeved on the surface of welded shaft 21 through snap ring.

[0023] Reference Figure 1 And Figure 4 Electric control mechanism 9 includes terminal box 91, and terminal box 91 is bolted on the top of casing 1, and the bottom and the inside of terminal box 91 are bolted with fin 92 and control board 93 respectively, and terminal box 91 is bolted with box cover 94 on the top, and box cover 94 is installed with key plate 95 in the inside, and key plate 95 and control board 93 are inserted with wire 96.

[0024] Reference Figure 1 And Figure 5The pump assembly 10 comprises a liner plate 101 fixedly sleeved with the other side of the front cover 12, the one side of the liner plate 101 is fixedly sleeved with a mechanical seal static ring 102 and a mechanical seal dynamic ring 103 respectively, the other side and the inner part of the liner plate 101 are fixedly sleeved with a water outlet guide vane 104 and a water blocking ring 1010 respectively, the other side of the water outlet guide vane 104 is provided with a water inlet guide vane 105, the other side of the water inlet guide vane 105 is provided with a pressing plate 106, the surface of the pressing plate 106 is provided with two shelf pull hooks 107, the other side of the shelf pull hooks 107 is connected with the liner plate 101, the other side of the liner plate 101 is fixedly sleeved with a pump body 108, the surface of the pump body 108 is penetratedly screwed with a gas nail 1009, the surface of the pump body 108 is fixedly sleeved with a first O-shaped sealing ring 109, the inner part of the pressing plate 106 is fixedly sleeved with a connecting pipe 1001, the surface of the pressing plate 106 and the inner part of the pump body 108 are both provided with a second O-shaped sealing ring 1002, the surface of the pump body 108 is provided with a throat clamp 1003, the one side of the liner plate 101 is provided with a positioning shaft sleeve 1004 fixedly sleeved with the welded shaft 21, an impeller 1005, a shaft sleeve 1006, a locking shaft sleeve 1007 and a lock nut 1008.

[0025] Reference Figure 1 And Figure 6 The pressurizing assembly 11 comprises a five-way pipe 111, the bottom end of the five-way pipe 111 is screwed with the top end of the pump body 108, the front end and the rear end of the five-way pipe 111 are screwed with a pressure gauge 112 and a pressure sensor 113 respectively, the top end of the five-way pipe 111 is screwed with a check valve body 114, the inner part of the check valve body 114 is provided with a check valve core 115, the check valve core 115 and the check valve body 114 are provided with a spring 116, the top part of the check valve body 114 is screwed with a pressure tank 117.

[0026] The use process is briefly described as follows: corresponding parameter values are set through the key plate 95, the product is started to work, the pressure sensor 113 receives actual water pressure signals, and transmits the actual water pressure signals to the controller, the controller controls the running state of the motor through the difference between the actual pressure and the set pressure, the motor drives the pump part to work, so that the actual pressure reaches the pressure value set by the electric control part, when the product is started for the first time, the gas nail 1009 must be unscrewed, the pump cavity of the pump part is filled with water, the gas nail 1009 is screwed tightly after the internal air is exhausted, the power is turned on, corresponding parameters are set, the product is started to work, the electric control part drives the motor, then the motor drives the pump part to work, so that the pressure reaches the set value, the parameters of the control panel are observed, and the parameters are adjusted to the appropriate parameter values through the up and down key functions.

[0027] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and the person skilled in the art can make modifications without creative contribution according to the needs after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. An improved variable frequency pump comprising a casing (1) and a rotor assembly (2), characterized in that: The both ends of the casing (1) are bolted with front cover (12) and rear cover (3), the bottom of the front cover (12) and the other side of the rear cover (3) are bolted with bottom foot (4) and fan cover (5), the inside of the casing (1) is fixed with stator core (6), the inside of the stator core (6) is wound with coil (7), the inside of the fan cover (5) is provided with fan blade (8), the top of the casing (1) is provided with electric control mechanism (9), the inside of the front cover (12) is provided with pump assembly (10), the top of the casing (1) is provided with pressurizing assembly (11).

2. The improved variable frequency pump according to claim 1, wherein, The rotor assembly (2) includes welding shaft (21), the both ends of the surface of the welding shaft (21) are fixed with first bearing (22) and second bearing (23), the first bearing (22) and the second bearing (23) are embedded in the inside of the front cover (12) and the rear cover (3), the second bearing (23) and the rear cover (3) are installed with wave washer, the middle of the surface of the welding shaft (21) is fixed with rotor ball (24), the inside of the rotor ball (24) is bonded with magnetic steel (25), the inside of the fan blade (8) is fixed on the surface of the welding shaft (21) through the snap ring.

3. The improved variable frequency pump of claim 1, wherein, The electric control mechanism (9) includes terminal box (91), the terminal box (91) is bolted on the top of the casing (1), the bottom and the inside of the terminal box (91) are bolted with fin (92) and control board (93), the top of the terminal box (91) is bolted with box cover (94), the inside of the box cover (94) is installed with key board (95), the key board (95) and the control board (93) are inserted with wire (96).

4. The improved variable frequency pump of claim 2, wherein, Said pump assembly (10) includes a liner plate (101), the other side of the liner plate (101) is fixedly sleeved with a front cover (12), one side of the liner plate (101) is fixedly sleeved with a mechanical seal static ring (102) and a mechanical seal dynamic ring (103) respectively, the other side and the inner part of the liner plate (101) are fixedly sleeved with a water outlet guide vane (104) and a water blocking ring (1010) respectively, the other side of the water outlet guide vane (104) is provided with a water inlet guide vane (105), the other side of the water inlet guide vane (105) is provided with a pressing plate (106), the surface of the pressing plate (106) is mounted with two shelf pull hooks (107), the other side of the shelf pull hook (107) is connected with the liner plate (101), the other side of the liner plate (101) is fixedly sleeved with a pump body (108), the surface of the pump body (108) is threadedly connected with an air nail (1009) penetratingly, the surface of the pump body (108) is fixedly sleeved with a first O-shaped sealing ring (109), the inner part of the pressing plate (106) is fixedly sleeved with a connecting pipe (1001), the surface of the pressing plate (106) and the inner part of the pump body (108) are both mounted with a second O-shaped sealing ring (1002), the surface of the pump body (108) is mounted with a hose clamp (1003), one side of the liner plate (101) is provided with a positioning shaft sleeve (1004) fixedly sleeved with a welded shaft (21), an impeller (1005), a shaft sleeve (1006), a locking shaft sleeve (1007) and a lock nut (1008).

5. The improved variable frequency pump of claim 4, wherein, Said pressurizing assembly (11) includes a five-way (111), the bottom end of the five-way (111) is threadedly connected with the top end of the pump body (108), the front end and the rear end of the five-way (111) are threadedly connected with a pressure gauge (112) and a pressure sensor (113) respectively, the top end of the five-way (111) is threadedly connected with a check valve body (114), the inner part of the check valve body (114) is mounted with a check valve core (115), the check valve core (115) and the check valve body (114) are mounted with a spring (116), the top part of the check valve body (114) is threadedly connected with a pressure tank (117).

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