CN201159145Y - rolling lever-type piston pump - Google Patents

Abstract

The utility model relates to a rolling lever type piston pump, comprising a bracket (12), a cylinder body (8), pistons (10), a valve seat (11), a rotary wheel seat (6), levers (4), a connecting bar (9), a rotary wheel (1), a pressing roller (2) and a carrying roller (3). The cylinder body (8) is fixedly mounted on the bracket (12), a plurality of piston chambers are radially arranged in the cylinder body (8), each piston chamber is internally equipped with one piston (10), the valve seat (11) is fixedly mounted in an inner bore of the cylinder body (8), the rotary wheel seat (6) is fixedly sleeved on the periphery of the cylinder body (8), a plurality of lever mounting grooves are uniformly arranged in the middle of the periphery of the rotary wheel seat (6) along the circumferential direction, the levers (4) are multiple in number, the plurality of levers (4) are arranged in the lever mounting grooves, the levers (4) are hinged with the connecting bar (9) which is hinged with the pistons (10), the rotary wheel (1) is sleeved on the periphery of the rotary wheel seat (6), and the pressing roller (2) and the carrying roller (3) are axially mounted in the inner race of the rotary wheel (1), wherein the middle portion of the pressing roller (2) contacts with the levers (4) and the periphery of the rotary wheel seat (6), and both sides of the pressing roller (2) contact with the periphery of the rotary wheel seat (6). The rolling lever type piston pump can homogenize the moving velocity of the piston, and can be applied to compressions of gas and liquid.

Description

Rolling lever-type piston pump

Technical field:

The utility model relates to a kind of reciprocating pump.Be mainly used in the compression of air, liquid.

Background technique:

The pump that is used for air, liquid compression requires the pressure height, and low noise can turn round continuously, long service life, and flow is big, the efficient height.General reciprocating pump is reciprocating (air compressor) of finishing piston by crankshaft ﹠ connecting.Bent axle is when 0 °～90 ° are rotated, and piston movement speed is by being minimal to maximum, so piston movement speed is uneven.And the used power of bent axle reduces (0 °～180 °) gradually by maximum, because speed, moment is inhomogeneous, has reduced mechanical efficiency, so generally only be suitable for the compression of gas.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and can make the rolling lever-type piston pump that piston movement speed is even, go for gas and liquid compression.

The purpose of this utility model is achieved in that a kind of rolling lever-type piston pump, it is characterized in that it comprises support, cylinder body, piston, valve seat, rotaring wheeling base, lever, connecting rod, runner, pressure roller and carrying roller,

Described cylinder body cross section is circular, and cylinder body is fixedly installed on the support, and cylinder diameter is to being provided with the several pistons chamber, be provided with a piston in each piston cavity, described valve seat is fixedly installed in the cylinder inner bore, and the inlet/outlet on the valve seat communicates with each corresponding piston chamber in the cylinder body

Described rotaring wheeling base cross section is circular, and the rotaring wheeling base fixed cover is loaded on the cylinder body outer rim, along the circumferential direction is evenly equipped with a plurality of lever mounting grooves in the middle of the rotaring wheeling base outer rim,

Described lever has many, the quantity of lever is 1/2 of number of pistons, many levers are arranged in respectively in the corresponding lever mounting groove of rotaring wheeling base outer rim, use bearing pin to cross-under between lever and the rotaring wheeling base, the lever inner edge is provided with cambered surface, and this cambered surface matches with the shape of cylinder body outer rim, every lever inner edge both sides are provided with two protruding tongues, one end and connecting rod one end of each protruding tongue are hinged, the piston hinge in the other end of connecting rod and the respective pistons chamber

Described runner cross section is circular, and rotaring wheeling sleeve places the periphery of rotaring wheeling base,

To the inner ring that is installed on runner, wherein the centre of pressure roller contacts with the outer rim of lever and rotaring wheeling base by bearing shaft for described pressure roller and carrying roller, and the left and right both sides of pressure roller contact with the outer rim of rotaring wheeling base,

The centre of described lever outer rim is arranged to and the identical arc surface of rotaring wheeling base outer rim radius of curvature, two curved surface A1 and A2 are arranged at the initial and end two ends of lever outer rim respectively, and the shape of described two curved surface A1 and A2 makes lever be pressed the movement locus of out-of-date pressure spot to be in all the time on the same circumference by pressure roller.

The utility model moves lever with runner and the pressure roller that is installed on the runner, and the piston that is connected in the lever both sides is moved.When pressure roller during to lever roll extrusion on one side, it is the circular movement in the center of circle that the lever two ends are done with the lever pin.Lever compresses a piston by connecting rod on one side, and the another side of lever is mentioned another piston by connecting rod simultaneously.Pressure roller drives relative rotaring wheeling base by runner and makes circular movement, simultaneously with rotaring wheeling base on elastic ring produce friction and roll.Runner whenever circles, and a pressure roller on the runner is done a roll extrusion to all levers, and then all pistons respectively once move back and forth.

The utility model can make pump lower rotating speed, reduces power of motor, and piston movement speed is even, reduces noise, reduces vibration, reduces the piston ring friction, can be used for the supercharging of liquid, gas.

Description of drawings

Fig. 1 is the general structure schematic representation of the utility model rolling lever-type piston pump.

Fig. 2 is the A-A cut-away view of Fig. 1.

Fig. 3 is the B-B cut-away view of Fig. 1.

Fig. 4 is that three, lever are three even layout motion state diagram for the utility model pressure roller.

Fig. 5 is that three, lever are three the motion state diagram that is staggeredly arranged for the utility model pressure roller.

Fig. 6 is that two, lever are two even layout motion state diagram for the utility model pressure roller.

Fig. 7 is that two, lever are two the motion state diagram that is staggeredly arranged for the utility model pressure roller.

Fig. 8 is that connecting rod beat of the present utility model is apart from schematic representation.

Fig. 9 is a pressure roller schematic representation of the present utility model.

Among the figure: runner 1, pressure roller 2, carrying roller 3, lever 4, pin 5, rotaring wheeling base 6, elastic ring 7, cylinder body 8, connecting rod 9, piston 10, valve seat 11, support 12, power section 13.

Embodiment

Referring to Fig. 1～3, the utility model is a kind of rolling lever-type piston pump, mainly is made up of support 12, cylinder body 8, piston 10, valve seat 11, rotaring wheeling base 6, lever 4, connecting rod 9, runner 1, pressure roller 2 and carrying roller 3.

Described cylinder body 8 cross sections are circular, cylinder body 8 is fixedly installed on the support 12, radially be provided with the several pistons chamber in the cylinder body 8, be provided with a piston 10 in each piston cavity, described valve seat 11 is fixedly installed in cylinder body 8 endoporus, advancing on the valve seat 11, outlet communicates with each corresponding piston chamber in the cylinder body 8, described rotaring wheeling base 6 cross sections are circular, rotaring wheeling base 6 fixed covers are loaded on cylinder body 8 outer rims fixes the whole pump housing, along the circumferential direction be evenly equipped with a plurality of lever mounting grooves in the middle of rotaring wheeling base 6 outer rims, described lever 4 has many, and the quantity of lever 4 is 1/2 of piston 10 quantity, and many levers 4 are arranged in respectively in the corresponding lever mounting groove of rotaring wheeling base 6 outer rims, use pin 5 axial cross-under between lever 4 and the rotaring wheeling base 6, making lever can be center of circle swing with the pin, and lever 4 inner edges are provided with cambered surface, and this cambered surface matches with the shape of cylinder body 8 outer rims, every lever 4 inner edge both sides are provided with two protruding tongues, one end and connecting rod 9 one ends of each protruding tongue are hinged, and the piston 10 in the other end of connecting rod 9 and the respective pistons chamber is hinged

Described runner 1 cross section is circular, and runner 1 is placed on the periphery of rotaring wheeling base 6, and links to each other with power section 13.To the inner ring that is installed on runner 1, wherein the centre of pressure roller 2 contacts with the outer rim of lever 4 and rotaring wheeling base 6 by bearing shaft for pressure roller 2 and carrying roller 3, and the left and right both sides of pressure roller 2 contact with the outer rim of rotaring wheeling base 6.For making pressure roller when motion produce the effect of rotation, all be set with elastic ring 7 in rotaring wheeling base 6 both sides outer rims.

Two curved surface A1 and A2 are arranged at the initial and end two ends of described lever 4 outer rims respectively, the identical arc surface of radius of curvature with rotaring wheeling base 6 outer rims is arranged in the centre of lever 4 outer rims, the amplitude of the shape decision lever swing of described two curved surface A1 and A2, when the position of lever 4 head end A1 faces is in outside the outer rim of rotaring wheeling base, when pressure roller turns over it being carried out roll extrusion goes down, forcing it to do with the lever pin is the circular movement in the center of circle, compress to piston by connecting rod, when the other end A2 of lever went to the rotaring wheeling base outer rim simultaneously, connecting rod mounted thereto was mentioned piston (backhaul).

Described runner is driven by power section 13 by pressure roller, carrying roller location, by pressure roller to the lever work done.

The quantity of described pressure roller 2, by lever arrange and quantity is arranged, the quantity of pressure roller from one to the quantity that equals lever 4, referring to Fig. 4-7.B1, B2 distance is the lever swing place on Fig. 5 rotaring wheeling base 6 outer rims, wherein B2 be pressure roller to lever work done place, the B section is the neutral gear place, pressure roller how many positions of staggering, length on the B place is decided, and is illustrated in figure 5 as three pressure rollers to three levers, the pressure rollers roll extrusion schematic representation that staggers.If pressure roller quantity equals lever quantity, can on runner, evenly arrange (as Fig. 4,6), all pressure rollers lever corresponding with it simultaneously carry out roll extrusion, the certain position that also can stagger becomes asymmetric layout, as Fig. 5,7, the pressure roller of having installed that staggers has formed the roll extrusion of staggering to lever, makes the pressure roller stressed one by one, pressure roller rotates along with runner, produces with rotaring wheeling base simultaneously and rubs and roll.In order to make pressure roller enough roll extrusion power be arranged to the lever roll extrusion, processing straight knurling on the elastic ring institute corresponding position on pressure roller and the rotaring wheeling base, as Fig. 9 so that it strengthens frictional force (also can produce roll to cooperate make rotaring wheeling base form radial location to runner with the outer rim of rotaring wheeling base and two ends) when rolling.

Described carrying roller 3 is left and right to be one group, and the quantity of carrying roller 3 is more than or equal to three groups, and the outer rim of carrying roller 3 and rotaring wheeling base 6 and end face roll to cooperate and make rotaring wheeling base form radial-axial to runner to locate.

Can reach following purpose by the way:

1, all levers, connecting rod, piston be all in the middle of runner, and be symmetric arrangement, can eliminate the inertial force, impact force and the minimizing vibrations that bring in compression process.

2, can arrange a plurality of pistons to carry out work at the periphery of a cylinder body.

3, on the runner a plurality of pressure rollers can be set, each pressure roller is done a to-and-fro motion to each piston when runner rotates a circle, so a plurality of pressure rollers can be done a plurality of actions to each piston when runner rotated a circle, runner speed does not require too high like this.

4, because reciprocal being finished by the roll extrusion of pair of rollers lever apart from S1 of piston, connecting rod is to be that radius R is done motion with connecting rod to the distance between the pin, so the beat that connecting rod is connected with lever is apart from having only an action S2, apart from seeing Fig. 4.The pivot pin that is connected with piston of the pivot pin that connecting rod is connected with lever, connecting rod all brings rotation angle little like this, has reduced friction, but as long as regular lubricated just proper functioning.

5, because connecting rod is little to the beat distance of piston, can not consider between piston and connecting rod, to add crosshead.

6, adopt oil-free lubrication, no back pressure piston ring can be realized low-speed running.

Claims (7)

1, a kind of rolling lever-type piston pump is characterized in that it comprises support (12), cylinder body (8), piston (10), valve seat (11), rotaring wheeling base (6), lever (4), connecting rod (9), runner (1), pressure roller (2) and carrying roller (3),

Described cylinder body (8) cross section is circular, and cylinder body (8) is fixedly installed on the support (12), and cylinder body radially is provided with the several pistons chamber in (8), is provided with a piston (10) in each piston cavity,

Described valve seat (11) is fixedly installed in cylinder body (8) endoporus, and the inlet/outlet on the valve seat (11) communicates with each corresponding piston chamber in the cylinder body (8),

Described rotaring wheeling base (6) cross section is circular, and rotaring wheeling base (6) fixed cover is loaded on cylinder body (8) outer rim, along the circumferential direction is evenly equipped with a plurality of lever mounting grooves in the middle of rotaring wheeling base (6) outer rim,

Described lever, (4) there are many, lever, (4) quantity is piston, (10) 1/2 of quantity, many levers, (4) be arranged in rotaring wheeling base respectively, (6) in the corresponding lever mounting groove of outer rim, lever, (4) and rotaring wheeling base, (6) use pin between, (5) axially cross-under, lever, (4) inner edge is provided with cambered surface, this cambered surface and cylinder body, (8) shape of outer rim matches, every lever, (4) the inner edge both sides are provided with two protruding tongues, one end and the connecting rod of each protruding tongue, (9) one ends are hinged, connecting rod, (9) piston in the other end and the respective pistons chamber, (10) hinged

Described runner (1) cross section is circular, and runner (1) is placed on the periphery of rotaring wheeling base (6),

To the inner ring that is installed on runner (1), wherein the centre of pressure roller (2) contacts with the outer rim of lever (4) and rotaring wheeling base (6) by bearing shaft for described pressure roller (2) and carrying roller (3), and the left and right both sides of pressure roller (2) contact with the outer rim of rotaring wheeling base (6).

2, a kind of rolling lever-type piston pump according to claim 1, the centre that it is characterized in that described lever (4) outer rim is arranged to and the identical arc surface of rotaring wheeling base (6) outer rim radius of curvature, and two curved surfaces (A1) and (A2) are arranged at the initial and end two ends of lever (4) outer rim respectively.

3, a kind of rolling lever-type piston pump according to claim 1, it is characterized in that described pressure roller (2) quantity at least one, equal the quantity of lever (4) at most.

4, a kind of rolling lever-type piston pump according to claim 3 is characterized in that described pressure roller (2) evenly arranges on runner.

5, a kind of rolling lever-type piston pump according to claim 3 is characterized in that described pressure roller (2) layout that misplaces on runner.

6, a kind of rolling lever-type piston pump according to claim 1, it is characterized in that described carrying roller (3) left and right be one group, the quantity of carrying roller (3) is more than or equal to three groups, the outer rim of carrying roller (3) and rotaring wheeling base (6) and end face roll and cooperate.

7, a kind of rolling lever-type piston pump according to claim 1 is characterized in that all being set with elastic ring (7) in rotaring wheeling base (6) both sides outer rim, processes straight knurling on the elastic ring on pressure roller and the rotaring wheeling base (7) institute corresponding position.

Images