A coaxial integrated energy-saving Roots blower

Abstract

The present invention discloses a coaxial integrated energy-saving Roots blower applied to the field of blowers. The blower makes the blower and the motor coaxial by directly connecting the blower main shaft with the rotor of the driving motor, which can effectively reduce mechanical loss to improve transmission efficiency, effectively reduce occupied space and reduce noise. In addition, a cooler is added on the basis of the existing Roots blower to dissipate heat for the blower main shaft. The blower main shaft is clamped by a shock-absorbing heat dissipation ring, which can effectively reduce the vibration of the blower main shaft during rotation and self-lubricate it. A heat-absorbing block is used to absorb the heat of the blower main shaft and transfer it to the inside of the shock-absorbing heat dissipation ring, and the lubricating oil is circulated inside the shock-absorbing heat dissipation ring to take away the heat, thereby effectively dissipating the heat for the blower main shaft. In addition, a cooler is used to absorb the heat generated by the Roots blower during operation and dissipate the heat, thereby achieving shock-absorbing, heat-dissipating and lubricating effects on the blower main shaft, and effectively improving the stability of the blower main shaft during operation.

Description

Technical Field

[0001] The invention relates to the field of blowers, and in particular to a coaxial integrated energy-saving Roots blower. Background Art

[0002] Roots blower, also known as rotary blower, is a positive displacement blower. Its principle is a rotary compressor that compresses and transports gas by using two blade-shaped rotors to move relative to each other in the cylinder.

[0003] The main shaft of the existing Roots blower is mostly connected to the driving shaft of the driving motor through a belt or a coupling, which results in large mechanical losses, low transmission efficiency, large installation space and high noise. The existing connection method is also more likely to cause the main shaft of the blower to vibrate during rotation and generate a large amount of frictional heat. The current Roots blower dissipates heat for the blower, and there is no special device for dissipating heat for the main shaft.

[0004] For this reason, we use this technical solution to solve the problem of poor connection mode of existing Roots blower. Summary of the invention

[0005] The purpose of the present invention is to improve the Roots blower in the prior art. Compared with the prior art, a coaxial integrated energy-saving Roots blower is provided. By directly connecting the blower main shaft with the rotor of the driving motor to make the blower and the motor coaxial, the mechanical loss can be effectively reduced to improve the transmission efficiency, and the occupied space and noise can be effectively reduced. In addition, a cooler is added on the basis of the existing Roots blower to dissipate the heat for the blower main shaft. The blower main shaft is clamped by a shock-absorbing heat dissipation ring, which can effectively reduce the vibration of the blower main shaft during rotation and self-lubricate it. The heat absorbing block is used to absorb the heat of the blower main shaft and transfer it to the inside of the shock-absorbing heat dissipation ring, and the lubricating oil is circulated inside the shock-absorbing heat dissipation ring to take away the heat, thereby effectively dissipating the heat for the blower main shaft. In addition, the cooler is used to absorb the heat generated by the Roots blower during operation and dissipate the heat, which effectively improves the stability of the Roots blower during operation.

[0006] Realize the coaxial connection between the fan and the motor, effectively improve the transmission efficiency, realize the vibration reduction, heat dissipation and lubrication of the fan main shaft, and effectively improve the stability of the fan main shaft during operation.

[0007] Furthermore, the oil-absorbing pad includes oil-conducting cotton and an elastic frame, and the oil-conducting cotton and the elastic frame are embedded in each other. The elastic frame absorbs lubricating oil from the circulation chamber and applies it to the self-lubricating shock-absorbing roller, thereby realizing self-lubrication between the self-lubricating shock-absorbing roller and the fan main shaft, effectively reducing the heat generated by friction, and the oil-conducting cotton provides additional shock-absorbing and buffering effect for the self-lubricating shock-absorbing roller, which can effectively improve the shock-absorbing effect of the self-lubricating shock-absorbing roller when the fan main shaft vibrates.

[0008] Furthermore, the shock-absorbing heat dissipation ring and the self-lubricating shock-absorbing roller are both made of polyurethane elastomer, and a plurality of inclined grooves are provided on the surface of the self-lubricating shock-absorbing roller and the fan main shaft. In addition to having excellent elasticity and shock-absorbing effect, the polyurethane elastomer also has excellent wear resistance, and the grooves provided on the self-lubricating shock-absorbing roller have a good oil storage function, so that as much lubricating oil as possible can be applied to the fan main shaft.

[0009] Optionally, a plurality of vertical cooling oil nets are fixedly embedded in the middle of the oil tank, and the cooling oil nets include a heat-absorbing net, and the upper and lower ends of the heat-absorbing net are fixedly connected with heat dissipation net frames, and the two heat dissipation net frames are fixedly embedded in the upper and lower inner walls of the oil tank respectively. When the oil inlet pump draws the lubricating oil back from the shock-absorbing heat dissipation ring, the heat carried by the lubricating oil when flowing through the heat-absorbing net is transferred to the heat-absorbing net, and the heat-absorbing net then transfers the heat to the heat dissipation net frame, and the heat dissipation net frame exchanges heat with the outside air, thereby cooling the lubricating oil, so that the lubricating oil can maintain a good heat dissipation effect when circulating inside the shock-absorbing heat dissipation ring.

[0010] Optionally, the interior of the cooling chamber is filled with coolant, and both side walls of the cooler are fixedly inlaid with multiple heat sinks, and a heat dissipation ring fixedly connected to the heat sink is placed inside the cooling chamber. When the lubricating oil flows in the two oil pipes, the heat of the lubricating oil is transferred to the coolant through the oil pipes, thereby further effectively improving the cooling effect of the lubricating oil, and the heat sink transfers the heat of the coolant to the outside air, thereby achieving heat dissipation and cooling of the coolant, thereby effectively improving the cooling effect of the coolant, and the heat dissipation ring further increases the contact area between the heat sink and the coolant.

[0011] Optionally, a plurality of heat-conducting columns are fixedly connected to the side wall of the cooler away from the connecting plate, and the two ends of the heat-conducting columns respectively penetrate into the interior of the Roots blower body and the interior of the cooling cavity. Since the Roots blower body also generates heat when working, the heat-conducting columns are used to absorb the heat and transfer it to the coolant, thereby effectively improving the heat dissipation effect of the Roots blower body.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] (1) This scheme makes the fan and the motor coaxial by directly connecting the fan main shaft with the rotor of the driving motor, which can effectively reduce mechanical losses and improve transmission efficiency. It can also effectively reduce the space occupied and reduce noise. In addition, a cooler is added on the basis of the existing Roots blower to dissipate heat for the fan main shaft. The fan main shaft is clamped by a shock-absorbing heat dissipation ring, which can effectively reduce the vibration of the fan main shaft during rotation and self-lubricate it. The heat-absorbing block absorbs the heat of the fan main shaft and transfers it to the inside of the shock-absorbing heat dissipation ring. The heat is taken away by circulating the lubricating oil inside the shock-absorbing heat dissipation ring, thereby effectively dissipating heat for the fan main shaft. In addition, the cooler is used to absorb the heat generated by the Roots blower during operation and dissipate the heat, effectively improving the stability of the Roots blower during operation, realizing the coaxial connection of the fan and the motor, effectively improving the transmission efficiency, realizing the shock-absorbing, heat-dissipating and lubricating effects on the fan main shaft, and effectively improving the stability of the fan main shaft during operation.

[0014] (2) The oil-absorbing pad includes oil-conducting cotton and an elastic frame, and the oil-conducting cotton and the elastic frame are embedded in each other. The elastic frame absorbs lubricating oil from the circulation cavity and applies it to the self-lubricating shock-absorbing roller, thereby realizing self-lubrication between the self-lubricating shock-absorbing roller and the fan main shaft, effectively reducing the heat generated by friction. The oil-conducting cotton provides additional shock-absorbing and buffering effect for the self-lubricating shock-absorbing roller, which can effectively improve the shock-absorbing effect of the self-lubricating shock-absorbing roller when the fan main shaft vibrates.

[0015] (3) Both the shock-absorbing heat dissipation ring and the self-lubricating shock-absorbing roller are made of polyurethane elastomer, and there are multiple inclined grooves on the surface of the self-lubricating shock-absorbing roller and the fan main shaft. In addition to having good elasticity and shock-absorbing effect, the polyurethane elastomer also has good wear resistance. The grooves on the self-lubricating shock-absorbing roller have a good oil storage function, so that as much lubricating oil as possible can be applied to the fan main shaft.

[0016] (4) A plurality of vertical cooling oil nets are fixedly embedded in the middle of the oil tank. The cooling oil nets include a heat absorbing net, and the upper and lower ends of the heat absorbing net are fixedly connected with heat dissipation net frames. The two heat dissipation net frames are fixedly embedded in the upper and lower inner walls of the oil tank respectively. When the oil inlet pump draws the lubricating oil back from the shock-absorbing heat dissipation ring, the heat carried by the lubricating oil when it flows through the heat absorbing net is transferred to the heat absorbing net, and the heat absorbing net then transfers the heat to the heat dissipation net frame. The heat dissipation net frame exchanges heat with the outside air, thereby cooling the lubricating oil, so that the lubricating oil can maintain a good heat dissipation effect when circulating inside the shock-absorbing heat dissipation ring.

[0017] (5) The interior of the cooling chamber is filled with coolant, and a plurality of heat sinks are fixedly embedded on both side walls of the cooler. A heat dissipation ring fixedly connected to the heat sink is placed inside the cooling chamber. When the lubricating oil flows in the two oil pipes, the heat of the lubricating oil is transferred to the coolant through the oil pipes, thereby further effectively improving the cooling effect of the lubricating oil. The heat sink transfers the heat of the coolant to the outside air, thereby achieving heat dissipation and cooling of the coolant, thereby effectively improving the cooling effect of the coolant. The heat dissipation ring further increases the contact area between the heat sink and the coolant.

[0018] (6) A plurality of heat-conducting columns are fixedly connected to the side wall of the cooler away from the connecting plate, and the two ends of the heat-conducting columns respectively penetrate into the interior of the Roots blower body and the interior of the cooling chamber. Since the Roots blower body also generates heat when working, the heat-conducting columns are used to absorb the heat and transfer it to the coolant, thereby effectively improving the heat dissipation effect of the Roots blower body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an assembly diagram of the present invention;

[0020] Figure 2 A perspective view of the present invention;

[0021] Figure 3 It is a disassembled stereogram of the present invention;

[0022] Figure 4 It is a stereoscopic diagram of the cooler of the present invention;

[0023] Figure 5 It is a front view of the cooler of the present invention;

[0024] Figure 6 It is a cross-sectional view of the shock-absorbing and heat-dissipating ring of the present invention;

[0025] Figure 7 It is a front view of the oil absorbing pad of the present invention;

[0026] Figure 8 is a cross-sectional view of the fuel tank of the present invention;

[0027] Fig. 9 It is a three-dimensional diagram of the cooling oil net of the present invention.

[0028] Description of the numbers in the figure:

[0029] 1 Roots blower body, 101 blower main shaft, 2 cooler, 201 cooling chamber, 3 connecting plate, 4 drive motor, 5 oil tank, 6 shaft hole, 7 damping heat dissipation ring, 701 mounting groove, 702 circulation chamber, 8 self-lubricating damping roller, 9 oil absorption pad, 901 oil conduction cotton, 902 elastic skeleton, 10 heat absorption block, 11 heat conduction wire, 12 heat conduction ball, 13 oil outlet pump, 14 oil inlet pump, 15 oil pipe, 16 cooling oil net, 1601 heat absorption net, 1602 heat dissipation net frame, 17 heat sink, 18 heat dissipation ring, 19 heat conduction column, 20 sound insulation cover, 21 import filter, 22 export muffler. DETAILED DESCRIPTION

[0030] The embodiments will be combined with the drawings in the specification to clearly and completely describe the technical solution of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present invention.

[0031] A coaxial integrated energy-saving Roots blower, please refer to Figure 1 , 2 and Figure 3 , including a soundproof cover 20, an inlet filter 21 is installed at one end of the soundproof cover 20, and a Roots blower body 1 is connected to the inlet filter 21, and an outlet muffler 22 is connected to the side of the Roots blower body 1 away from the inlet filter 21, the Roots blower body 1 includes a blower main shaft 101, a cooler 2 is fixedly connected to one side of the Roots blower body 1, and a connecting plate 3 is installed on the side wall of the cooler 2 away from the Roots blower body 1, and a driving motor 4 is installed on the side of the connecting plate 3 away from the cooler 2, the blower main shaft 101 penetrates the cooler 2 and the connecting plate 3, and the blower main shaft 101 and the driving motor 4 The rotors are connected by keys, a cooling chamber 201 is provided on the inner wall of the cooler 2, and an axial hole 6 is provided in the middle of the cooler 2, a shock-absorbing heat dissipation ring 7 is fixedly inlaid on the axial hole 6, the shock-absorbing heat dissipation ring 7 and the self-lubricating shock-absorbing roller 8 are both made of polyurethane elastomer, and a plurality of inclined grooves are provided on the surface of the self-lubricating shock-absorbing roller 8 and the fan main shaft 101. In addition to having good elasticity and shock-absorbing effect, the polyurethane elastomer also has good wear resistance, and the grooves provided on the self-lubricating shock-absorbing roller 8 have a good oil storage effect, so that as much lubricating oil as possible can be applied to the fan main shaft 101;

[0032] See also Figure 5 , 6 and Figure 7The side wall of the shock-absorbing and heat-dissipating ring 7 in the shaft hole 6 is provided with a plurality of mounting grooves 701 which are equally spaced and distributed around, and each mounting groove 701 is rotatably connected with a self-lubricating shock-absorbing roller 8 in contact with the fan main shaft 101, and the inner wall of each mounting groove 701 is fixedly connected with an oil-absorbing pad 9, and the oil-absorbing pad 9 includes an oil-conducting cotton 901 and an elastic skeleton 902, and the oil-conducting cotton 901 and the elastic skeleton 902 are mutually embedded, and the elastic skeleton 902 absorbs lubricating oil from the circulation chamber 702 to apply it on the self-lubricating shock-absorbing roller 8, so as to realize self-lubrication between the self-lubricating shock-absorbing roller 8 and the fan main shaft 101, and effectively reduce the heat generated by friction, and the oil-conducting cotton 901 provides an additional shock-absorbing and buffering effect for the self-lubricating shock-absorbing roller 8, and can effectively improve the shock-absorbing effect of the self-lubricating shock-absorbing roller 8 when the fan main shaft 101 vibrates;

[0033] See also Figure 6 , 8 The inner wall of the shock-absorbing and heat-dissipating ring 7 located inside the cooling cavity 201 is provided with a circulation cavity 702 which is connected with multiple installation grooves 701 at the same time, and the circulation cavity 702 and the installation grooves 701 are filled with lubricating oil. The side wall of the shock-absorbing and heat-dissipating ring 7 located in the shaft hole 6 is also fixedly inlaid with multiple heat-absorbing blocks 10 which are distributed around at equal intervals, and the heat-absorbing blocks 10 are fixedly connected with multiple heat-conducting wires 11 which penetrate into the circulation cavity 702, and one end of each heat-conducting wire 11 located in the circulation cavity 702 is fixedly connected with a heat-conducting ball 12, and the upper end side wall of the cooler 2 is fixedly connected with an oil tank 5 storing lubricating oil, and an oil outlet pump 13 and an oil inlet pump 14 are respectively installed on both sides of the oil tank 5, and oil pipes 15 are connected between the oil outlet pump 13 and the oil inlet pump 14 and the circulation cavity 702.

[0034] Based on Example 1, please refer to Figure 8 , 9 A plurality of vertical cooling oil nets 16 are fixedly embedded in the middle of the oil tank 5. The cooling oil net 16 includes a heat absorbing net 1601, and the upper and lower ends of the heat absorbing net 1601 are fixedly connected with heat dissipation net frames 1602. The two heat dissipation net frames 1602 are respectively fixedly embedded in the upper and lower inner walls of the oil tank 5. When the oil inlet pump 14 draws the lubricating oil back from the damping heat dissipation ring 7, the heat carried by the lubricating oil when flowing through the heat absorbing net 1601 is transferred to the heat absorbing net 1601, and the heat absorbing net 1601 then transfers the heat to the heat dissipation net frame 1602. The heat dissipation net frame 1602 exchanges heat with the outside air, thereby cooling the lubricating oil, so that the lubricating oil can maintain a good heat dissipation effect when circulating inside the damping heat dissipation ring 7;

[0035] See also Figure 4The interior of the cooling chamber 201 is filled with coolant, and both side walls of the cooler 2 are fixedly inlaid with multiple heat sinks 17, and a heat dissipation ring 18 fixedly connected to the heat sink 17 is placed inside the cooling chamber 201. The side wall of the cooler 2 away from the connecting plate 3 is also fixedly connected with multiple heat-conducting columns 19, and the two ends of the heat-conducting columns 19 respectively penetrate into the interior of the Roots blower body 1 and the interior of the cooling chamber 201. Since the Roots blower body 1 also generates heat when working, the heat-conducting columns 19 are used to absorb and transfer the heat to the coolant, thereby effectively improving the heat dissipation effect of the Roots blower body 1. When the lubricating oil flows in the two oil pipes 15, the heat of the lubricating oil is transferred to the coolant through the oil pipes 15, thereby further effectively improving the cooling effect of the lubricating oil, and the heat sink 17 transfers the heat of the coolant to the outside air, thereby achieving heat dissipation and cooling of the coolant, thereby effectively improving the cooling effect of the coolant, and the heat dissipation ring 18 further increases the contact area between the heat sink 17 and the coolant.

[0036] The working principle of this scheme is as follows: by directly connecting the fan main shaft 101 of the Roots blower body 1 with the rotor of the drive motor 4, the Roots blower body 1 and the drive motor 4 are coaxially connected, which can effectively improve the mechanical transmission efficiency and reduce the space occupied by the installation. The fan main shaft 101 passes through the axial hole 6 on the cooler 2 and contacts with multiple self-lubricating shock-absorbing rollers 8 on the shock-absorbing heat dissipation ring 7. When the fan main shaft 101 vibrates in the working state, the self-lubricating shock-absorbing rollers 8 can effectively absorb the energy generated by the vibration of the fan main shaft 101, thereby playing an effective shock-absorbing and buffering role. The oil outlet pump 13 transports the lubricating oil stored in the oil tank 5 to the circulation chamber 702, and the oil absorption pad 9 in the installation groove 701 absorbs the lubricating oil and then applies it to the self-lubricating shock-absorbing rollers 8. The self-lubricating shock-absorbing rollers 8 then apply the lubricating oil to the fan main shaft 101, so that self-lubrication can be achieved and the friction between the two can be effectively reduced. The heat absorption block 10 can effectively avoid the generation of a large amount of friction heat. When the fan main shaft 101 generates a large amount of heat due to mechanical friction during operation, the heat absorption block 10 is close to the fan main shaft 101, and the fan main shaft 101 will generate heat radiation when it is heated. Therefore, the heat absorption block 10 can absorb the heat of the fan main shaft 101, and the heat absorption block 10 then transfers the heat to the lubricating oil in the circulation chamber 702. The oil inlet pump 14 sucks the lubricating oil back into the oil tank 5, so that the circulation of the lubricating oil in the circulation chamber 702 is realized, thereby taking away the heat. The cooling oil net 16 in the oil tank 5 cools the lubricating oil, which can effectively improve the heat dissipation effect of the lubricating oil. At the same time, the coolant in the cooling chamber 201 can also cool the oil pipe 15, and the heat sink 17 and the heat dissipation ring 18 can also cool the coolant. In addition, the heat conducting column 19 also conducts the heat inside the Roots blower body 1 to the coolant, thereby effectively improving the heat dissipation effect of the Roots blower body 1.

[0037] The above description is only the best implementation mode adopted by the present invention in combination with current practical needs, but the protection scope of the present invention is not limited thereto.

Claims

1. A coaxial integrated energy-saving Roots blower, comprising a soundproof cover (20), an inlet filter (21) being installed at one end of the soundproof cover (20), and a Roots blower body (1) being connected to the inlet filter (21), an outlet muffler (22) being connected to the side of the Roots blower body (1) away from the inlet filter (21), the Roots blower body (1) comprising a blower main shaft (101), characterized in that: A cooler (2) is fixedly connected to one side of the Roots blower body (1), and a connecting plate (3) is installed on the side wall of the cooler (2) away from the Roots blower body (1), and a drive motor (4) is installed on the side of the connecting plate (3) away from the cooler (2). The blower main shaft (101) passes through the cooler (2) and the connecting plate (3), and the blower main shaft (101) is connected to the rotor of the drive motor (4) via a key. The inner wall of the cooler (2) is provided with a A cooling chamber (201) is provided, and an axial hole (6) is provided in the middle of the cooler (2), a damping heat dissipation ring (7) is fixedly embedded in the axial hole (6), a side wall of the damping heat dissipation ring (7) located in the axial hole (6) is provided with a plurality of mounting grooves (701) distributed around the axial hole (6) at equal intervals, and each mounting groove (701) is rotatably connected to a self-lubricating damping roller (8) in contact with the fan main shaft (101), and the inner wall of each mounting groove (701) is fixedly connected to The damping heat dissipation ring (7) is located in the cooling chamber (201) and has an inner wall provided with a circulation chamber (702) which is connected to the plurality of mounting grooves (701), and the circulation chamber (702) and the mounting grooves (701) are filled with lubricating oil. The damping heat dissipation ring (7) is located in the shaft hole (6) and has a plurality of heat absorbing blocks (10) which are distributed around the shaft hole (6) and are fixedly inlaid with the side wall. The heat absorbing blocks (10) are fixedly connected with a plurality of threads which penetrate the circulation chamber (702). The heat conducting wires (11) are in the cavity (702), and one end of each of the heat conducting wires (11) located in the circulation cavity (702) is fixedly connected to a heat conducting ball (12); the upper side wall of the cooler (2) is fixedly connected to an oil tank (5) storing lubricating oil, and an oil outlet pump (13) and an oil inlet pump (14) are respectively installed on both sides of the oil tank (5); and an oil pipe (15) is connected between the oil outlet pump (13) and the oil inlet pump (14) and the circulation cavity (702).

2. The coaxial integrated energy-saving Roots blower according to claim 1, characterized in that: The oil absorbing pad (9) comprises oil-conducting cotton (901) and an elastic frame (902), and the oil-conducting cotton (901) and the elastic frame (902) are embedded in each other.

3. The coaxial integrated energy-saving Roots blower according to claim 1, characterized in that: The damping and heat dissipation ring (7) and the self-lubricating damping roller (8) are both made of polyurethane elastomer, and a plurality of inclined grooves are provided on the surfaces of the self-lubricating damping roller (8) and the fan main shaft (101).

4. The coaxial integrated energy-saving Roots blower according to claim 1, characterized in that: A plurality of vertical cooling oil nets (16) are fixedly embedded in the middle of the oil tank (5), the cooling oil net (16) comprising a heat absorbing net (1601), and the upper and lower ends of the heat absorbing net (1601) are fixedly connected to heat dissipation net frames (1602), and the two heat dissipation net frames (1602) are respectively fixedly embedded in the upper and lower inner walls of the oil tank (5).

5. The coaxial integrated energy-saving Roots blower according to claim 1, characterized in that: The interior of the cooling cavity (201) is filled with cooling liquid, the side walls on both sides of the cooler (2) are fixedly inlaid with a plurality of heat sinks (17), and a heat sink ring (18) fixedly connected to the heat sink (17) is placed inside the cooling cavity (201).

6. The coaxial integrated energy-saving Roots blower according to claim 1, characterized in that: A plurality of heat-conducting columns (19) are fixedly connected to the side wall of the cooler (2) away from the connecting plate (3), and two ends of the heat-conducting columns (19) respectively penetrate the interior of the Roots blower body (1) and the interior of the cooling cavity (201).

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