CN2357157Y

CN2357157Y - Rotary piston pump

Info

Publication number: CN2357157Y
Application number: CN 98239359
Authority: CN
Inventors: 杨德山
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-11-13
Filing date: 1998-11-13
Publication date: 2000-01-05
Anticipated expiration: 2008-11-13

Abstract

The utility model relates to a rotary piston pump which comprises a pump body, a pump shaft and ring slices assembled on the pump shaft. The utility model is characterized in that the working surface of the ring slice is composed of a cylinder, a left screw turning surface, a right screw turning surface, a high ring surface and a low ring surface; the working surfaces of the two ring slices are malposed to form 180 DEG to be correspondingly arranged on the pump shaft; the two ring slices are separated by a middle partition plate and a blocking plate arranged on the middle partition plate, which forms a front working chamber and a back working chamber. When the ring slices rotate, the volumes of the front working chamber and the back working chamber are changed in a periodic mode, the pressure in a pump chamber is also changed, and procedures for sucking liquid and discharging liquid are completed. The utility model has the advantages of easy fabrication, long service life, high efficiency, big suction head, high delivery lift, large flow quantity, etc.

Description

A kind of rotary piston pump

The utility model relates to a kind of rotary piston pump, especially a kind of ring plate rotating piston pump.It is a kind of rotary positive-displacement pump, and this pump is to the improvement of conical ring plate and sinusoidal wave ring ring plate rotating piston pump, is mainly used in the liquid transportation art.

No. 881045837 application documents as No. the 4th, state's Gazette of Patent for Invention in 2 days November in 1988 disclosed No. 87101507 and submission on July 20th, 1988 of the open or record of existing circular cone type ring plate rotating piston pump are put down in writing, and sinusoidal wave ring ring plate rotating piston pump is put down in writing as the CN89100510.2 application documents, is that the former is improved.And the utility model mainly carries out structural improvement to the latter.The defective of sinusoidal wave ring ring plate rotating piston pump is as follows:

1, baffle plate has rectangular indentation, jackknifing easily, and the life-span is short.

In sine wave ring ring plate rotating piston pump, ring plate is embedded in the baffle plate, forms " recessed " type cooperating structure, and in baffle plate moved reciprocatingly along axle, " recessed " type angle retention force of baffle plate was concentrated, easy-rupturing, and the life-span is short.

2, add very difficult assurance of morpheme worker difference in man-hour.

Sinusoidal wave ring ring plate double face is integrated in one, adding man-hour, the inside and outside cylndrical surface of ring plate, axis hole concentricity are difficult to guarantee, and the axial section of ripple ring is difficult to reach wide, if compensate section variation with the baffle plate that has compensation block, like adapting,, must cause pump efficiency to reduce even obtained compensation completely with section variation speed, and serious wear, in order to reach concentricity requirement, and use the multidimensional lathe, certainly will cause cost height, consequence that work efficiency is low.

3, it is big to let out external leakage in, easy to wear.

The crest of the ring plate ripple ring of sinusoidal wave ring ring plate rotating piston pump and the side of cylinder are sealing movingly, contact to the line contact, and easy to wear, leakage is big, and when ring plate was worked, pressure difference was very big before and after ripple ring two sides, the crest, caused the sealing difficulty, and leakage is serious.

The utility model provides a kind of whorl plate rotating piston pump, the advantage that embodied easy processing, the life-span is long, suction nozzle is high, lift is big, flow is big, efficient is high, leakage is little.

The utility model is realized by following technique measures.

A kind of rotary piston pump, comprise the pump housing, ring plate, baffle plate and pump shaft, the pump housing is by circular cylinder, end cap is formed, ring plate is assemblied on the pump shaft, the end cap that is connected with circular cylinder is equipped with in the outside of ring plate, it is characterized in that said ring plate working surface is by cylinder, a left side, right-hand screw radial facing and height, low anchor ring is formed, 180 ° of the working surface of two ring plates dislocation correspondence in opposite directions are installed on the pump shaft, separate by intermediate clapboard and the baffle plate that is installed on the intermediate clapboard between two ring plates, before the formation, back active chamber, the intermediate clapboard outer peripheral surface radially has baffle plate groove, baffle plate is housed in the groove, the both sides of the baffle plate groove of above-mentioned intermediate clapboard have into, outlet slot, intermediate clapboard is fixedlyed connected with circular cylinder.。

The both sides of above-mentioned baffle plate groove are the Y type along the inlet/outlet groove that circumferentially has.Y type inlet/outlet groove is a center line with the baffle plate groove center, respectively to 80 °-120 ° of the left and right extensions in baffle plate groove both sides.

Above-mentioned circular cylinder is processed with the right-angled triangle outlet that hypotenuse is adjacent along being symmetrily processed with adjacent rectangle inlet/outlet in the circumferential 180 ° of scopes of wall in the both sides of rectangle inlet/outlet.

The cylinder of the working surface of the above-mentioned ring plate outside joins with high and low anchor ring and the left and right helicoid that revolves on the same concentric circle, and is connected for arc transition between anchor ring and the helicoid.The central angle of the high and low anchor ring on the ring plate is 20 °-50 °, and the central angle of helicoid is 160 °-130 °.The helicoid helix angle is 5 °-15 °.

The working surface kissing of above-mentioned baffle plate both ends of the surface and ring plate.

The bottom of above-mentioned baffle plate groove and baffle plate inboard are arc surface, and its radius of the radian equates with ring plate cylndrical surface radius of the radian, cambered surface kissing at the bottom of the baffle plate groove on baffle plate inner arc face and ring plate cylinder outer peripheral surface, the intermediate clapboard.Height of baffle plate equates with the width of the helicoid of ring plate.

The utility model is in order to overcome the existing above-mentioned defective of rotary-piston pump structure, and the baffle plate of " recessed " type opening changes integral body into former having, and the baffle plate integral installation is fitted on the intermediate clapboard.Simultaneously, original two working surfaces sine wave ring ring plate that is one changed into is processed with high and low anchor ring and left and right helicoid on the working surface, and in pairs, complementary, corresponding in opposite directions ring plate of installing.

The utility model places intermediate clapboard in the circular cylinder, and paired, complementary, corresponding ring plate are separated, and forms two independently corresponding ring-type wedge shape spaces.When baffle plate rotates in ring plate, do axially reciprocating in baffle plate groove, baffle plate side and cell wall are sealing movingly, the outside and circular inside wall of cylinder coplane, or stretch in the casing wall and also can.Baffle plate is inboard does sealing movingly for cambered surface and with the cylndrical surface of ring plate.Baffle plate with two ring-type wedge shape spaces separately every being divided into former and later two active chambers.

Have Y type groove at baffle plate groove along circumferential two side directions and with its partition, be respectively the inlet/outlet of material, communicate with the import and export on the casing wall, to guarantee the flow of material, the intermediate clapboard center has axis hole and axle to do sealing movingly, its cylindrical is also fixedlyed connected with circular cylinder inner peripheral surface coplane with face, does the to-and-fro motion of axial one dimension to guarantee baffle plate under the ring plate rotation.When ring plate is rotated, form and inhale chamber, row chamber, produce volume-variation, realized suction, row's overall process.

The utility model is with paired, complementary, corresponding helicoid ring plate of installing, the sine wave ring ring plate that has replaced integral piece, this ring plate by axis hole, cylinder, left and rightly revolve helicoid and high and low anchor ring is formed, corresponding principle is that two ring plate structural parameter are identical, and high and low anchor ring, 180 ° of corresponding assemblings of left and right helicoid mutual dislocation have guaranteed wide, complementary.The central angle of high and low anchor ring is 20 °-50 °, and the spiral central angle of left and right helicoid is 160 °-130 °.Because the design makes high anchor ring and intermediate clapboard become face to contact, let out big, short problem of life-span in having solved, improved the efficient and the sealing of pump.Anchor ring, helicoid pass through the formation working surface mutually with the cylndrical surface of ring plate, and are arc transition between anchor ring and the helicoid, and the helix angle of helicoid is 5 °-15 °, can adjust the flow size of pump, inhale thing degree height.This in pairs, complementary, corresponding ring plate of installing can guarantee that when rotated baffle plate does axially reciprocating, and ring plate also becomes the to-and-fro motion of one dimension relatively at the baffle plate place, realized the variation of volume equally, finish the suction process, and more effectively solved and leak serious, poorly sealed and the low problem of volumetric efficiency, mechanical efficiency that cause.

Rotary piston pump provided by the utility model is compared with sine wave ring ring plate reciprocating pump, its import and export are close, for no other reason than that this pump is paired, complementary, the corresponding installation, so shape and the distribution imported and exported, to satisfy flow and to be sealed into principle, three are advanced (or outlet) middle is rectangular, communicate with the Y type mouth of intermediate clapboard during work, the axial both sides of rectangle hole respectively have two right-angled triangle imports (or outlet), cylindrical disc with ring plate during work is corresponding, plays opening and sealing process of suction, discharge opeing body.

Intermediate clapboard simple shape of the present utility model, easily processing, ring plate can once machine shapings on general purpose machine tool, and concentricity is guaranteed, and has improved machining accuracy, has reduced cost, is widely used.

The helicoid ring plate rotating piston pump that the utility model provides, thoroughly overcome defectives such as baffle plate easy-rupturing, ring plate machining accuracy difficulty, the internal leakage of circular cone type rotary piston pump and sinusoidal wave ring ring plate rotating piston pump be serious, can be applied even more extensively transportation art in various liquid.

Below in conjunction with example the utility model is further elaborated:

Fig. 1 is a rotary-piston pump structure cut-away view.

Fig. 2 is a rotary piston pump pump housing inlet/outlet exploded view.

Fig. 3 is the ring plate structural front view.

Fig. 4 is a ring plate structure left view.

Fig. 5 is the intermediate deck structure plan view.

Fig. 6 is the intermediate deck structure plan view.

In the present embodiment, the pump housing is by circular cylinder 3, end cap 7,8 form, circular cylinder 3 connects with end cap 7,8, and does sealing movingly by end cap axis hole and axle 1, ring plate 2, there is axis hole 23 at 2 ' center, axis hole 23 outsides be followed successively by cylinder 22 and left-handed helicoid 19, right hand helix face 20 and high anchor ring 21, low anchor ring 21 ', be arc transition between anchor ring and the helicoid.Ring plate 2,2 ' on high and low anchor ring central angle respectively is 40 °, helicoid institute is 140 ° to central angle.The helicoid helix angle is 10 °.Ring plate 2,2 ' working surface should misplace 180 ° in opposite directions correspondence be installed on the pump shaft 1, two ring plates 2,2 ' between separate by intermediate clapboard 4 and the baffle plate 5 that is installed on the intermediate clapboard 4, form forward and backward active chamber, intermediate clapboard 4 outer peripheral surfaces radially have baffle plate groove 6, and baffle plate 5 is housed in the groove 6, the both sides of the baffle plate groove 6 of above-mentioned intermediate clapboard 4 are processed with Y type inlet/outlet groove 16,17.Y type inlet/

outlet groove

16,17 is a center line with the center of baffle plate groove 6, respectively to 90 ° of the left and right extensions in baffle plate groove 6 both sides.Intermediate clapboard 4 has central shaft hole 24, is provided with boss and column pin hole 18 on the outer wall of baffle plate groove 6, and intermediate clapboard 4 is fixedlyed connected with circular cylinder 3.Above-mentioned circular cylinder 3 is along being symmetrily processed with adjacent rectangle inlet/outlet 10,13 in circumferential 160 ° of the wall, at each rectangle inlet/outlet 10,13 both sides respectively are processed with the right-angled triangle outlet 9,11,12 that hypotenuse is adjacent, 14, import and export and all open on the casing wall of circular cylinder 3, referring to shown in Figure 2.

Claims

1. rotary piston pump, comprise the pump housing [3,7,8], ring plate [2,2 '], baffle plate [5] and axle [1], the pump housing is by circular cylinder [3], end cap [7,8] form, ring plate [2,2 '] is assemblied on the pump shaft [1], ring plate [2,2 '] the outside end cap [7 that is connected with circular cylinder [3] is housed, 8], it is characterized in that said ring plate [2,2 '] working surface is by cylinder [22], a left side, right-hand screw radial facing [19,20] and high, low anchor ring [21,21 '] form, 180 ° of the working surface dislocation of two ring plates [2,2 '] correspondence in opposite directions are installed on the pump shaft [1], two ring plates [2,2 '] between separate by intermediate clapboard [4] and the baffle plate [5] that is installed on the intermediate clapboard [4], before the formation, back active chamber, intermediate clapboard [4] outer peripheral surface has baffle plate groove [6] vertically, baffle plate [5] is housed in the groove [6], the both sides of the baffle plate groove [6] of above-mentioned intermediate clapboard [4] have into, outlet slot [16,17], intermediate clapboard [4] is fixedlyed connected with circular cylinder [3].

2. rotary piston pump according to claim 1 is characterized in that the both sides of said baffle plate groove [6] are the Y type along the inlet/outlet groove [16,17] that circumferentially has.

3. rotary piston pump according to claim 2 is characterized in that said Y type inlet/outlet groove [16,17] is a center line with baffle plate groove [6] center, respectively to 80 °～120 ° of the left and right extensions in baffle plate groove [6] both sides.

4. rotary piston pump according to claim 1, it is characterized in that said circular cylinder [3] is along being symmetrily processed with adjacent rectangle inlet/outlet [10 in the circumferential 180 ° of scopes of wall, 13], at rectangle inlet/outlet [10,13] both sides are processed with the right-angled triangle outlet [9 that hypotenuse is adjacent, 11,12,14].

5. rotary piston pump according to claim 1 is characterized in that cylinder [22] outside of the working surface of said ring plate [2,2 '], with the high and low anchor ring [21 on the same concentric circle, 21 '] and the left and right helicoid [19,20] that revolves join, be arc transition between anchor ring and the helicoid.

6. rotary piston pump according to claim 1 or 5, the central angle that it is characterized in that the high and low anchor ring [21,21 '] on the said ring plate [2,2 '] is 20 °～50 °, the central angle of helicoid [19,20] is 160 °～130 °.

7. rotary piston pump according to claim 1 is characterized in that the working surface kissing of said baffle plate [5] both ends of the surface and ring plate [2,2 '].

8. according to claim 1,2 or 3 described rotary piston pumps, the bottom and baffle plate [5] inboard that it is characterized in that said baffle plate groove [6] are arc surface, its radius of the radian and ring plate [2,2 '] cylinder [22] face radius of the radian equates, baffle plate [5] inner arc face and ring plate [2,2 '] cylinder [22] outer peripheral surface kissing.

9. according to claim 1 or 7 described rotary piston pumps, it is characterized in that said baffle plate [5] height and the width of the helicoid [19,20] of ring plate [2,2 '] equate.

10. rotary piston pump according to claim 9, the helix angle that it is characterized in that said helicoid [19,20] are 5 °～15 °.