CN103850908A - Slush pump with split cover-lifting type pump structure - Google Patents

Abstract

The invention relates to a slush pump with a split cover-lifting type pump structure. The slush pump comprises a split cover-lifting type pump body 6, a crank shaft 2, a connecting rod 3, a crosshead 4 and a bearing 5, wherein the split cover-lifting type pump body 6 comprises a lower pump body 6-1 and an upper pump body cover 6-2; the upper pump body cover 6-2 is mounted on the lower pump body 6-1 through a bolt; the crank shaft 2 is supported and mounted on shaft necks 6-1-3 on the two sides of the lower pump body 6-1 through the bearing 5; the connecting rod 3 is mounted on the crank shaft 2; a small-head end 3-2 of the connecting rod 3 is connected with the crosshead 4; the crosshead 4 is mounted between a crosshead slide rail 6-1-2 on the lower pump body 6-1 and a crosshead slide rail 6-2-1 at the bottom of the upper pump body cover 6-2. According to the invention, the upper pump body cover can be detached from the lower pump body, the upward side of the crosshead slide rail is not covered during an assembling process, and the upper pump body cover can be mounted on the lower pump body after the pump body is assembled under a horizontal state, so that the assembling and disassembling of the slush pump are very convenient. The size of a supporting rib rod can be larger, so that the strength is better and the safety of the whole slush pump is promoted.

Description

The slurry pump of split drawing-pushing type pump body structure

Technical field

The present invention relates to geological drilling field, particularly a kind of slurry pump of split drawing-pushing type pump body structure.

Background technique

In geological drilling industry, the piston high-density pump equipment that is absolutely necessary.Existing slurry pump is the slurry pump of integrated type pump body structure, its structure as shown in Figure 1, 2, comprise thepump housing 1, bent axle 2, connecting rod 3,crosshead 4 and bearing 5, bent axle 2 is arranged on the axle journal 1-1 of thepump housing 1 both sides by bearing 5 supportings, connecting rod 3 comprises that stub end 3-1 and microcephaly hold 3-2, and be arranged on bent axle 2 by the axis hole being positioned on stub end 3-1, its microcephaly holds 3-2 to be connected withcrosshead 4 by bearing pin, andcrosshead 4 is arranged on the crosshead slideway 1-2 of the pump housing 1.In the time that slurry pump is worked, external impetus band dynamic crankshaft 2 rotates, bent axle drivening rod stub end 3-1 moves in a circle, and its microcephaly holds 3-2 to drivecrosshead 4 to do linear reciprocating motion on crosshead slideway 1-2, andcrosshead 4 drives other component motion on slurry pump again.

The slurry pump of this integrated type pump body structure, in the time of assembling, must first be assembled into an assembly by connecting rod 3, bent axle 2 andcrosshead 4, then this assembly and thepump housing 1 are assembled.As shown in Figure 3, in the time that mud pump size is larger, the weight of described assembly is also very large for its assembling condition schematic diagram,crosshead 4 be packed into sidewards in the crosshead slideway 1-2 on thepump housing 1 difficult especially.For convenient for assembly, conventionally thepump housing 1 need to be holded up, that is: crosshead slideway 1-2 is become to vertical state from level.But under this state, eachcrosshead 4 is different at the effect upper/lower positions of connecting rod gravity, what have is not just to crosshead slideway 1-2, therefore eachcrosshead 4 will be packed on thepump housing 1 and still quite bother in corresponding crosshead slideway 1-2.In addition, the supporting rib bar 1-3 on thepump housing 1 is because will reserve enough spaces passes through forcrosshead 4, and its size is less, and tenacity is poor, easily produces trickle distortion, and the safe operation of whole slurry pump is produced to harmful effect.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art, and a kind of slurry pump of split drawing-pushing type pump body structure is provided, it can assemble under the state of horizontal positioned, and assembling difficulty is low.

Technological scheme of the present invention is: a kind of slurry pump of split drawing-pushing type pump body structure, comprises the split drawing-pushing type pump housing, bent axle, connecting rod, crosshead and bearing; The split drawing-pushing type pump housing comprises lower pump body and pump body top cover, has supporting rib bar, crosshead slideway and axle journal on lower pump body, and there is crosshead slideway the bottom surface of pump body top cover, and it is arranged on lower pump body by bolt; Bent axle supports by bearing on the axle journal that is arranged on lower pump body both sides, connecting rod is arranged on bent axle by the axis hole being positioned on stub end, its little head end is connected with crosshead by bearing pin, and crosshead is arranged between the crosshead slideway and the crosshead slideway of pump body top cover bottom surface on lower pump body.

The further technological scheme of the present invention is: in lower pump body and pump body top cover, have mount pin axis hole.

The present invention further technological scheme is: in pump body top cover, be useful on the projection being connected with the supporting rib bar upper end on lower pump body, mount pin axis hole is positioned on projection.

The present invention, because the pump housing adopts split drawing-pushing type structure, compared with prior art, has following features:

1, pump body top cover can disassemble from lower pump body, and when assembling, crosshead slideway top is unobstructed, and the pump housing is arranged on pump body top cover on lower pump body after can assembling under level, and the mounting or dismounting of slurry pump are all very convenient.

2, because the pump housing can be assembled under level, supporting rib bar on the pump housing, without being whole crosshead by reserved enough width, only needs the thickness of reserved connecting rod, therefore that the size of supporting rib bar can be accomplished is larger, therefore intensity is also better, promote the Security of whole slurry pump.

Below in conjunction with figure and embodiment, detailed construction of the present invention is further described.

Accompanying drawing explanation

Fig. 1 is the structural representation of the slurry pump of existing integrated type pump body structure;

Fig. 2 is the structural representation of the slurry pump pump housing of existing integrated type pump body structure;

Fig. 3 is the assembling schematic diagram of the slurry pump of existing integrated type pump body structure;

Fig. 4 is structural representation of the present invention;

Fig. 5 is the structural representation of pump body top cover of the present invention;

Fig. 6 is assembling schematic diagram of the present invention.

Embodiment

As shown in Figure 4: a kind of slurry pump of split drawing-pushing type pump body structure, comprises the split drawing-pushing type pump housing 6, bent axle 2, connecting rod 3,crosshead 4 and bearing 5; The split drawing-pushing type pump housing 6 comprises lower pump body 6-1 and pump body top cover 6-2, has supporting rib bar 6-1-1, crosshead slideway 6-1-2 and axle journal 6-1-3 on lower pump body 6-1; On pump body top cover 6-2, there are mount pin axis hole 6-2-1 and projection 6-2-2 for being connected with the supporting rib bar 6-1-1 upper end on lower pump body 6-1, mount pin axis hole 6-2-1 is positioned on projection 6-2-2, there is crosshead slideway 6-2-3(the bottom surface of pump body top cover 6-2 as shown in Figure 5), it is arranged on lower pump body 6-1 by bolt; Bent axle 2 is arranged on the axle journal 6-1-3 of lower pump body 6-1 both sides by bearing 5 supportings, connecting rod 3 is arranged on bent axle 2 by the axis hole being positioned on stub end 3-1, its microcephaly holds 3-2 to be connected withcrosshead 4 by bearing pin, andcrosshead 4 is arranged between the crosshead slideway 6-1-2 and the crosshead slideway 6-2-1 of pump body top cover 6-2 bottom surface on lower pump body 6-1.

In the time that slurry pump is worked, external impetus band dynamic crankshaft 2 rotates, bent axle drivening rod stub end 3-1 moves in a circle, its microcephaly holds 3-2 to drive between the crosshead slideway 6-1-2 ofcrosshead 4 on lower pump body 6-1 and the crosshead slideway 6-2-1 of pump body top cover 6-2 bottom surface and does linear reciprocating motion, andcrosshead 4 drives other component motion on slurry pump again.

For obtaining better tenacity, the distance between the upper two adjacent supporting rib bar 6-1-1 of lower pump body 6-1 of the present invention is slightly larger than connecting rod thickness.

Assembling of the present invention is as shown in Figure 6: first each connecting rod 3 is installed on bent axle 2, then at bent axle 2 two ends, bearing 5 is installed, again bearing 5 is placed in to the crankshaft journal 6-1-3 place on lower pump body 6-1, then the microcephaly whocrosshead 4 is arranged on to connecting rod holds 3-2, install rear rotation and fall down to put into crosshead slideway 6-1-2, then it is upper by bolt, pump body top cover 6-2 to be arranged on to lower pump body 6-1.

Claims (3)

1. a slurry pump for split drawing-pushing type pump body structure, is characterized in that comprising the split drawing-pushing type pump housing, bent axle, connecting rod, crosshead and bearing; The split drawing-pushing type pump housing comprises lower pump body and pump body top cover, has supporting rib bar, crosshead slideway and axle journal on lower pump body, and there is crosshead slideway the bottom surface of pump body top cover, and it is arranged on lower pump body by bolt; Bent axle supports by bearing on the axle journal that is arranged on lower pump body both sides, connecting rod is arranged on bent axle by the axis hole being positioned on stub end, its little head end is connected with crosshead by bearing pin, and crosshead is arranged between the crosshead slideway and the crosshead slideway of pump body top cover bottom surface on lower pump body.

2. the slurry pump of split drawing-pushing type pump body structure according to claim 1, is characterized in that in lower pump body and pump body top cover, there is mount pin axis hole.

3. the slurry pump of split drawing-pushing type pump body structure according to claim 1 and 2, is characterized in that being useful on the projection being connected with the supporting rib bar upper end on lower pump body in pump body top cover, and mount pin axis hole is positioned on projection.

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