CN109578287B

CN109578287B - Conveying pump

Info

Publication number: CN109578287B
Application number: CN201910073925.1A
Authority: CN
Inventors: 陆挚译; 段明旭; 张兴宇
Original assignee: Kamoer Fluid Technology Shanghai Co Ltd
Current assignee: Kamoer Fluid Technology Shanghai Co Ltd
Priority date: 2019-01-25
Filing date: 2019-01-25
Publication date: 2020-08-07
Anticipated expiration: 2039-01-25
Also published as: CN109578287A

Abstract

The invention relates to the field of conveying equipment, in particular to a conveying pump which comprises a pump body, a motor, a cam, a push rod and a pushing blade, wherein the motor is arranged on the pump body; the motor is fixedly connected to the outer wall of the pump body; the cam is fixedly connected to a rotating shaft of the motor; the inner wall of the pump body is fixedly connected with a fixed column; the diameter of the fixed column is matched with the inner cavity of the pump body, and a groove is formed in the middle of the fixed column; the push rod penetrates through the groove and is connected in the fixing column in a sliding mode; a stop block is arranged in the middle of the push rod; a return spring is fixedly connected between the stop block and the fixed column; the reset spring is sleeved on the push rod; the pushing blades are hinged to the end part of the push rod through a spring hinge, and are arc-shaped and provided with one group; according to the invention, the cam, the push column and the push blade are arranged to intermittently push the water flow in the pump body, and the opening and closing of the push blade are utilized to improve the efficiency of pushing the water flow; the pushing device is simple in structure, convenient to operate, high in applicability and high in pushing efficiency.

Description

Conveying pump

Technical Field

The invention relates to the field of conveying equipment, in particular to a conveying pump.

Background

At present, the fluid pipeline transportation used by people is spread in the industries of electric power, metallurgy, coal, petroleum, chemical industry, building materials, machinery and the like, and is developed at a high speed. Most of materials processed in chemical production are fluids, and the materials are conveyed among various chemical equipment and machines according to process requirements, so that the method is an important link for realizing chemical production. In chemical production, the variety of materials is wide, and the properties of the conveyed fluid such as density, viscosity, toxicity, corrosivity, inflammability, explosiveness and the like are different, so that fluid conveying pumps for conveying the fluid have various forms and various manufacturing materials.

However, the existing conveying pump has low conveying efficiency, and internal components are easily abraded in the conveying process, so that the service life of the conveying pump is shortened, and the conveying cost is increased.

Disclosure of Invention

The invention provides a delivery pump, which aims to overcome the defects of the prior art and improve the efficiency of delivering fluid by the delivery pump.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a delivery pump which comprises a pump body, a motor, a cam, a push rod and a pushing blade, wherein the pump body is provided with a pump body; the motor is fixedly connected to the outer wall of the pump body; the cam is fixedly connected to a rotating shaft of the motor; the inner wall of the pump body is fixedly connected with a fixed column; the diameter of the fixed column is matched with the inner cavity of the pump body, and a groove is formed in the middle of the fixed column; the push rod penetrates through the groove and is connected in the fixing column in a sliding mode; a stop block is arranged in the middle of the push rod; a return spring is fixedly connected between the stop block and the fixed column; the reset spring is sleeved on the push rod; the pushing blades are hinged to the end part of the push rod through a spring hinge, the pushing blades are arc-shaped and are provided with one group, and the group of pushing blades are combined into a horn-shaped pushing impeller; a conical chamfer is formed on the inner side wall of the pump body, and a water inlet is formed in the side wall of the pump body; the bottom of the pump body is provided with a water outlet. The during operation, constantly pour into the pump body with the water source from the water inlet, the starter motor simultaneously, the motor drives the cam and rotates, cam rotation time intermittent type nature is exerted pressure to the push rod, slide in the recess of fixed column after the push rod pressurized, thereby drive the propelling movement blade and remove, and then push rivers to the delivery port fast, the reverse acting force that the propelling movement blade promoted rivers and received rivers makes a set of propelling movement blade outwards open certain angle, increase the area of contact of propelling movement blade and rivers, and then improve the efficiency of propelling movement rivers, the tip that the tip just was located the toper chamfer when the propelling movement blade opened the maximum angle, close the pump body space of propelling movement blade top, after the cam breaks away from the push rod, the initial position is got back to again under reset spring's effect to the push rod, the propelling movement blade folds together again, thereby realize intermittent type nature propelling movement rivers.

And the end parts of the pushing blades are covered with waterproof cloth, and an elastic rope is arranged between the side walls of every two adjacent pushing blades. The during operation, when the push rod slides, the propelling movement blade is along with the push rod removes the propelling movement rivers, the propelling movement blade atress opens certain angle, the tarpaulin that propelling movement blade tip covered is opened along with the propelling movement blade and is stretched straightly, the tarpaulin just stretches straightly into the plane when the propelling movement blade opens the maximum angle, propelling movement rivers effect is better, gap between the propelling movement blade can be airtight simultaneously, prevent that rivers from spilling in the gap between the adjacent propelling movement blade, the propelling movement blade is at open in-process, the elasticity rope between two adjacent propelling movement blades undertakes the tension that the tarpaulin was propped on the one hand, prevent that the tarpaulin atress is too big destroyed, on the other hand, when the propelling movement blade returns, the elasticity rope can assist the propelling movement blade shrink and retreat to the initial condition, accelerate propelling movement efficiency.

A backflow pipeline is arranged on the outer side wall of the pump body; one end of the backflow pipeline is communicated with the cavity between the fixing column and the pushing blade, and the other end of the backflow pipeline is located beside the water outlet; a water baffle is hinged on the inner side wall of the pump body; the hinged position of the water baffle and the pump body is provided with a first torsion spring, and the water baffle is just opposite to the outlet at the lower end of the backflow pipeline. The during operation, when the cam breaks away from the push rod, the initial position is got back to the push rod under reset spring's effect, propelling movement blade draws in gradually along with the push rod removal simultaneously, take the rivers of propelling movement blade rear end to the rear, the rivers that the propelling movement blade draws in the rear completely discharge via the backflow pipeline, receive great resistance when avoiding the propelling movement blade to draw in, water impact breakwater makes the breakwater rotate and opens the breach, thereby make rivers flow direction delivery port direction, the breakwater seals the breach again under the effect of first torsional spring after rivers are drained totally.

A clamping groove is formed in the side wall of one side of the pushing blade, and a clamping block is arranged on the side wall of the other side of the pushing blade; the clamping block is matched with the small end of the clamping groove; and water holes are formed in the side wall of the clamping groove. The during operation, when the cam breaks away from the push rod, the initial position is got back to the push rod under reset spring's effect, and propelling movement blade draws in gradually along with the push rod removal simultaneously until drawing in completely, and the fixture block on the propelling movement blade lateral wall just blocks in advancing adjacent propelling movement blade's draw-in groove, prevents that adjacent propelling movement blade from drawing in time collision each other, increases propelling movement blade's life, can extrude the moisture in the draw-in groove from crossing the water hole simultaneously, reduces the resistance that receives when propelling movement blade draws in.

The water inlet is arranged towards the water outlet in an inclined mode, and an included angle between the water inlet and the side wall of the pump body is smaller than that between the water inlet and the side wall of the pump body; the lower end of the water inlet is positioned at the tip of the conical chamfer. The during operation, tip just is located the pointed end of toper chamfer when the push blade opens the maximum angle, the water inlet lower extreme also is located the pointed end of toper chamfer, thereby make when the push blade returns the rivers of push blade rear end directly discharge from the backflow pipeline, prevent that rivers from flowing backwards and make propelling movement rivers speed slow down in the inlet, if the water inlet lower extreme is located toper chamfer upper end, when the push blade draws in, will be located its rear end rivers partly push the water inlet, thereby block the rivers that the inlet flows down, and then make efficiency reduction when push blade propelling movement rivers, the water inlet is arranged towards the delivery port slope, prevent that rivers from flowing backward and reducing the efficiency of propelling movement rivers in the inlet.

A suction pipeline is arranged on the side wall of the water inlet; the cavity between suction pipeline one end intercommunication fixed column and the propelling movement blade, it has the movable rod to articulate on the one end lateral wall that the suction pipeline is close to the water inlet, is equipped with the dog on the lateral wall that suction pipeline and movable rod are relative. During operation, when the push rod forwards pushes water flow, negative pressure is generated behind the pushing blades, the pump body sucks water flow in the water inlet into the pump body through the suction pipeline to supplement pressure, and the movable rod and the stop block in the suction pipeline enable the water flow to enter the pump body from the water inlet in one direction only under the matching action.

The invention has the following beneficial effects:

1. according to the invention, the cam, the push column and the push blade are arranged to intermittently push the water flow in the pump body, and the opening and closing of the push blade are utilized to improve the efficiency of pushing the water flow; the pushing device is simple in structure, convenient to operate, high in applicability and high in pushing efficiency.

2. According to the invention, the waterproof cloth is arranged at the end part of the pushing blade, so that the contact area between the pushing blade and water flow when the pushing blade is opened is increased, and the pushing efficiency of the water flow is further improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a view of the connection of the pusher blade to the pusher rod of FIG. 1;

FIG. 3 is a view in the direction A of FIG. 2 with the pusher blade extended to a maximum angle;

FIG. 4 is a schematic view of the pusher blade of FIG. 1;

FIG. 5 is an enlarged view at B in FIG. 1;

in the figure: the pump body 1, the motor 2, the cam 3, the push rod 4, the pushing blade 5, the clamping groove 51, the clamping block 52, the water passing hole 53, the fixed column 6, the groove 7, the stop block 8, the return spring 9, the conical chamfer 10, the water inlet 11, the water outlet 12, the waterproof cloth 13, the elastic rope 14, the backflow pipeline 15, the water baffle 16, the suction pipeline 17, the movable rod 18, the baffle 19 and the spring hinge 20.

Detailed Description

A transfer pump according to the present invention will be described below with reference to fig. 1 to 5.

Referring to fig. 1-5, the delivery pump of the present invention comprises a pump body 1, a motor 2, a cam 3, a push rod 4 and a push blade 5; the motor 2 is fixedly connected to the outer wall of the pump body 1; the cam 3 is fixedly connected to a rotating shaft of the motor 2; the inner wall of the pump body 1 is fixedly connected with a fixed column 6; the diameter of the fixed column 6 is matched with the inner cavity of the pump body 1, and a groove 7 is formed in the middle of the fixed column 6; the push rod 4 penetrates through the groove 7 and is connected in the fixing column 6 in a sliding mode; a stop block 8 is arranged in the middle of the push rod 4; a return spring 9 is fixedly connected between the stop block 8 and the fixed column 6; the return spring 9 is sleeved on the push rod 4; the pushing blades 5 are hinged to the end part of the push rod 4 through a spring hinge 20, the pushing blades 5 are arc-shaped and are provided with one group, and the group of pushing blades 5 are combined into a horn-shaped pushing impeller; a conical chamfer 10 is formed on the inner side wall of the pump body 1, and a water inlet 11 is formed in the side wall of the pump body 1; the bottom of the pump body 1 is provided with a water outlet 12. When the water pump works, a water source is continuously injected into the pump body 1 from the water inlet 11, the motor 2 is started at the same time, the motor 2 drives the cam 3 to rotate, the rotation time of the cam 3 intermittently presses the push rod 4, the push rod 4 slides in the groove 7 of the fixed column 6 after being pressed, so that the push blades 5 are driven to move, and further the water flow is quickly pushed to the water outlet 12, a group of push blades 5 are outwards opened at a certain angle by the reverse acting force of the water flow in the process that the push blades 5 push the water flow to move, the contact area between the push blades 5 and the water flow is increased, the efficiency of pushing the water flow is improved, the end part of each push blade 5 is just positioned at the tip of the conical chamfer 10 when the push blade 5 is opened to the maximum angle, the space of the pump body 1 above the push blades 5 is sealed, after the cam 3 is separated from the push rod 4, the push rod 4 returns, thereby realizing intermittent water flow pushing.

The end parts of one group of the pushing blades 5 are covered with waterproof cloth 13, and an elastic rope 14 is arranged between the side walls of two adjacent pushing blades 5. During operation, when push rod 4 slides, propelling movement blade 5 removes the propelling movement rivers along with push rod 4, propelling movement blade 5 atress opens certain angle, tarpaulin 13 that propelling movement blade 5 tip covered opens along with propelling movement blade 5 and is stretched straightly, tarpaulin 13 just stretches straightly into the plane when propelling movement blade 5 opens the maximum angle, propelling movement rivers effect is better, simultaneously can seal the gap between propelling movement blade 5, prevent that rivers from spilling from the gap between the adjacent propelling movement blade 5, propelling movement blade 5 is at open in-process, elastic rope 14 between two adjacent propelling movement blades 5 undertakes the tension that tarpaulin 13 was propped up on the one hand, prevent that tarpaulin 13 atress is too big to be destroyed, on the other hand, when propelling movement blade 5 returns, elastic rope 14 can assist propelling movement blade 5 to contract and retreat to the initial condition, accelerate propelling movement efficiency.

A return pipeline 15 is arranged on the outer side wall of the pump body 1; one end of the backflow pipeline 15 is communicated with a cavity between the fixing column 6 and the pushing blade 5, and the other end of the backflow pipeline 15 is located beside the water outlet 12; a water baffle 16 is hinged on the inner side wall of the pump body 1; and a first torsion spring is arranged at the hinged part of the water baffle 16 and the pump body 1, and the water baffle 16 is just opposite to the outlet at the lower end of the return pipeline 15. The during operation, when cam 3 breaks away from push rod 4, initial position is got back to push rod 4 under reset spring 9's effect, propelling movement blade 5 draws in gradually along with push rod 4 removes simultaneously, bring the rivers of propelling movement blade 5 rear end to the rear, propelling movement blade 5 draws in the rivers of rear portion completely and discharges via backflow pipeline 15, receive great resistance when avoiding propelling movement blade 5 to draw in, rivers impact breakwater 16 makes breakwater 16 rotate and opens the breach, thereby make rivers flow direction delivery port 12 direction, breakwater 16 seals the breach again under the effect of first torsional spring after the rivers are drained completely.

A clamping groove 51 is formed in the side wall of one side of the pushing blade 5, and a clamping block 52 is arranged on the side wall of the other side of the pushing blade 5; the fixture block 52 is matched with the small end of the clamping groove 51; the side wall of the clamping groove 51 is provided with a water through hole 53. The during operation, when cam 3 breaks away from push rod 4, initial position is got back to push rod 4 under reset spring 9's effect, propelling movement blade 5 draws in gradually until drawing in completely along with push rod 4 removes simultaneously, fixture block 52 on the propelling movement blade 5 lateral wall just blocks in advancing adjacent propelling movement blade 5's draw-in groove 51, mutual collision when preventing adjacent propelling movement blade 5 from drawing in, increase propelling movement blade 5's life, simultaneously can extrude the moisture in draw-in groove 51 from crossing the water hole 53, reduce the resistance that receives when propelling movement blade 5 draws in.

The water inlet 11 is arranged towards the water outlet in an inclined mode, and an included angle between the water inlet 11 and the side wall of the pump body 1 is smaller than 90 ℃; the lower end of the water inlet 11 is positioned at the tip of the conical chamfer 10. During operation, tip just is located the pointed end of toper chamfer 10 when 5 opening of push blade are the biggest angle, 11 lower extremes of water inlet also are located the pointed end of toper chamfer 10, thereby make when 5 returning of push blade with the rivers of 5 rear ends of push blade directly discharge from backflow pipeline 15, prevent rivers and flow backward and make propelling movement rivers speed slow down in water inlet 11, when 11 lower extremes of water inlet are located toper chamfer 10 upper end, push blade 5 will be located partly the pushing towards water inlet 11 of rivers that its rear end when drawing in, thereby block the rivers that intake 11 flowed down, and then make the efficiency reduce of 5 push blade propelling movement rivers, water inlet 11 arranges towards delivery port 12 slope, prevent that rivers from pouring backward into the efficiency that reduces the propelling movement rivers in the water inlet 11.

A suction pipeline 17 is arranged on the side wall of the water inlet 11; one end of the suction pipeline 17 is communicated with a cavity between the fixed column 6 and the pushing blade 5, a movable rod 18 is hinged to the side wall of one end, close to the water inlet 11, of the suction pipeline 17, and a baffle 19 is arranged on the side wall, opposite to the movable rod 18, of the suction pipeline 17. When the water pump works, when the push rod 4 pushes water flow forwards, negative pressure is generated behind the pushing blades 5, the pump body 1 sucks the water flow in the water inlet 11 into the pump body 1 through the suction pipeline 17 to supplement pressure, and the movable rod 18 and the baffle 19 in the suction pipeline 17 are matched to enable the water flow to enter the pump body 1 from the water inlet 11 in one direction.

The specific working process is as follows:

when the water pump works, a water source is continuously injected into the pump body 1 from the water inlet 11, the motor 2 is started simultaneously, the motor 2 drives the cam 3 to rotate, the rotation time of the cam 3 intermittently applies pressure to the push rod 4, the push rod 4 slides in the groove 7 of the fixed column 6 after being pressed, so that the push blades 5 are driven to move, and further water flow is quickly pushed to the water outlet 12, a group of push blades 5 are outwards opened at a certain angle due to the reverse acting force of the water flow in the process that the push blades 5 push the water flow to move, the contact area between the push blades 5 and the water flow is increased, so that the efficiency of the water flow is improved, the waterproof cloth 13 covered at the end parts of the push blades 5 is stretched straightly along with the stretching of the push blades 5, when the push blades 5 are opened to the maximum angle, the waterproof cloth 13 is stretched straight into a plane, the water flow pushing effect is better, gaps between the push blades 5 can, the propelling movement blade 5 is at open in-process, and the tension that tarpaulin 13 was propped is undertaken to the elasticity rope 14 between two adjacent propelling movement blades 5 on the one hand, prevents that tarpaulin 13 atress is too big to be destroyed, and on the other hand, when propelling movement blade 5 returns, the elasticity rope 14 can assist propelling movement blade 5 to contract and return to initial condition for propelling movement efficiency. Tip just is located the most advanced of toper chamfer 10 when 5 opening of propelling movement blade to the maximum angle, 1 space of the pump body above 5 of propelling movement blade is closed, water inlet 11 lower extreme also is located the most advanced of toper chamfer 10, thereby make the rivers of 5 rear ends of propelling movement blade directly discharge from backflow pipeline 15 when 5 retreat of propelling movement blade, prevent that rivers from flowing backward to make propelling movement rivers speed slow down in water inlet 11, when 11 lower extremes of water inlet are located toper chamfer 10 upper ends, push blade 5 will be located partly push towards water inlet 11 of rivers of its rear end when drawing in, thereby block into the rivers that water inlet 11 flowed down, and then make the efficiency reduce when 5 propelling movement rivers of propelling movement blade, water inlet 11 is towards delivery port 12 slope arrangement, prevent that rivers from pouring backward into water inlet 11 and reduce the efficiency of propelling movement rivers.

Meanwhile, when the push rod 4 pushes water flow forwards, negative pressure is generated behind the pushing blades 5, the pump body 1 sucks the water flow in the water inlet 11 into the pump body 1 through the suction pipeline 17 to supplement pressure, and the movable rod 18 and the baffle 19 in the suction pipeline 17 cooperate to enable the water flow to enter the pump body 1 from the water inlet 11 in one direction.

After the cam 3 is separated from the push rod 4, the push rod 4 returns to the initial position again under the action of the return spring 9, the pushing blades 5 return again until being completely folded, the clamping blocks 52 on the side walls of the pushing blades 5 are just clamped into the clamping grooves 51 of the adjacent pushing blades 5, mutual collision deformation when the adjacent pushing blades 5 are folded is prevented, the service life of the pushing blades 5 is prolonged, meanwhile, moisture in the clamping grooves 51 can be extruded out from the water through holes 53, and the pressure applied when the pushing blades 5 are folded is reduced.

And the rivers area of propelling movement blade 5 rear end backward when propelling movement blade 5 draws in, and the rivers of propelling movement blade 5 rear after drawing in completely are discharged via backflow pipeline 15, receive the resistance when avoiding propelling movement blade 5 to draw in, and rivers impact breakwater 16 makes breakwater 16 rotate and open the breach to make rivers flow to delivery port 12 direction, breakwater 16 seals the breach again under the effect of first torsional spring after the rivers are discharged totally, thereby realizes intermittent type nature propelling movement rivers.

While one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.

Claims

1. A transfer pump characterized by: comprises a pump body (1), a motor (2), a cam (3), a push rod (4) and a push blade (5); the motor (2) is fixedly connected to the outer wall of the pump body (1); the cam (3) is fixedly connected to a rotating shaft of the motor (2); the inner wall of the pump body (1) is fixedly connected with a fixed column (6); the diameter of the fixed column (6) is matched with the inner cavity of the pump body (1), and a groove (7) is formed in the middle of the fixed column (6); the push rod (4) penetrates through the groove (7) and is connected in the fixing column (6) in a sliding mode; a stop block (8) is arranged in the middle of the push rod (4); a return spring (9) is fixedly connected between the stop block (8) and the fixed column (6); the return spring (9) is sleeved on the push rod (4); the pushing blades (5) are hinged to the end part of the push rod (4) through spring hinges (20), the pushing blades (5) are arc-shaped and are provided with one group, and the group of pushing blades (5) are combined into a horn-shaped pushing impeller; a conical chamfer (10) is formed on the inner side wall of the pump body (1), and a water inlet (11) is formed in the side wall of the pump body (1); a water outlet (12) is formed at the bottom of the pump body (1);

the end parts of the pushing blades (5) are covered with waterproof cloth (13), and an elastic rope (14) is arranged between the side walls of every two adjacent pushing blades (5).

2. A delivery pump as defined in claim 1, wherein: a backflow pipeline (15) is arranged on the outer side wall of the pump body (1); one end of the backflow pipeline (15) is communicated with a cavity between the fixing column (6) and the pushing blade (5), and the other end of the backflow pipeline (15) is located beside the water outlet (12); a water baffle (16) is hinged on the inner side wall of the pump body (1); the hinged part of the water baffle (16) and the pump body (1) is provided with a first torsion spring, and the water baffle (16) is over against the outlet at the lower end of the return pipeline (15).

3. A delivery pump as defined in claim 1, wherein: a clamping groove (51) is formed in the side wall of one side of the pushing blade (5), and a clamping block (52) is arranged on the side wall of the other side of the pushing blade (5); the fixture block (52) is matched with the small end of the clamping groove (51); and water passing holes (53) are formed in the side wall of the clamping groove (51).

4. A delivery pump as defined in claim 1, wherein: the water inlet (11) is obliquely arranged towards the water outlet end, and the included angle between the water inlet (11) and the side wall of the pump body (1) is less than 90 ℃; the lower end of the water inlet (11) is positioned at the tip end of the conical chamfer (10).

5. A delivery pump as defined in claim 1, wherein: a suction pipeline (17) is arranged on the side wall of the water inlet (11); suction pipeline (17) one end intercommunication fixed column (6) and cavity between propelling movement blade (5), it has movable rod (18) to articulate on the one end lateral wall of suction pipeline (17) intercommunication water inlet (11), is equipped with dog (19) on the lateral wall that suction pipeline (17) and movable rod (18) are relative.