CN202300986U

CN202300986U - High-pressure pump for connecting rod

Info

Publication number: CN202300986U
Application number: CN2011204227213U
Authority: CN
Inventors: 罗昌国
Original assignee: LUTIAN MACHINERY CO Ltd
Current assignee: LUTIAN MACHINERY CO Ltd
Priority date: 2011-10-31
Filing date: 2011-10-31
Publication date: 2012-07-04
Anticipated expiration: 2021-10-31

Abstract

The utility model belongs to the technical field of a water pump and particularly relates to a high-pressure pump of a connecting rod. The high-pressure pump of the connecting rod comprises a cylinder body, a crank box screwed with the cylinder body, a plunger connected with a crank, a single-direction valve assembly arranged on the cylinder body. The both ends of the crank are supported on both opposite lateral walls of the crank box through conical roller bearings. The conical roller bearings at the both ends of the crank are respectively pressed on a flange through bearing covers screwed with the lateral walls of the crank box. An adjusting cushion is arranged between each bearing cover and each lateral wall of the crank box. A connecting rod mechanism is rotatably connected with the crank in the crank box, and the other end of the connecting rod mechanism is hinged with the plunger. The high-pressure pump of the connecting rod disclosed by the utility model has the advantages that: the conical roller bearings arranged on the crank provided by the utility model can be used for adjusting a radial internal clearance and an axial internal clearance of the bearings by adjusting the tightness of the flange and the bearing covers, so that the bearings can bear larger axial force and load and the difficulty of a production process is reduced. The working efficiency of the high-pressure pump is entirely improved, the service life of the high-pressure pump is entirely prolonged, the use strength is better, and the high-pressure pump of the connecting rod disclosed by the utility model has a wide market prospect.

Description

A kind of connecting rod high-pressure service pump

Technical field

The utility model belongs to the pump technology field, refers in particular to a kind of connecting rod high-pressure service pump.

Background technique

At present, the rolling bearing that driving mechanism adopted of the connecting rod high-pressure service pump on the market is a deep groove ball bearing, in the process that bent axle runs up; The bearing of bent axle bears bigger axial force; Cause the Internal and external cycle separation of bearing easily and can not adjust bearing and the play of axle and bearing support, play is too small, and the rolling bearing temperature raises; Can't proper functioning, so that rolling element is stuck; Play is excessive, and vibration equipment is big, and the rolling bearing noise is big, thereby the working life and the load pressure that shorten the pump housing also are difficult to increase.

Summary of the invention

The purpose of the utility model provides a kind ofly can bear bigger axial force, the play of adjustable bearing and axle and bearing cap, the connecting rod high-pressure service pump that long service life, load pressure can increase.

The purpose of the utility model is achieved in that a kind of connecting rod high-pressure service pump; Crankcase, the plunger that is connected with bent axle that comprises cylinder body, is spirally connected with cylinder body, be arranged on the check valve assembly on the cylinder body; The two ends of said bent axle are supported on the relative two side of crankcase through tapered roller bearing; The tapered roller bearing of bent axle one end compresses through being screwed onto bearing cap on the crankcase side wall, the tapered roller bearing of the other end is through being screwed onto the flange screw on the crankcase side wall; Be provided with spacer between the sidewall of bearing cap and crankcase; Bent axle stretches out outside the crankcase through the center hole on the flange, is rotatably connected to more than one linkage mechanism on the bent axle in the crankcase, and the other end and the plunger of linkage mechanism are hinged.

The above-mentioned linkage mechanism that is rotatably connected on the bent axle has three, and the plunger cylinder bottom of the corresponding plunger of each linkage mechanism is provided with a unidirectional inlet valve of low pressure, is provided with a unidirectional outlet valve of high pressure in the plunger cylinder bottom sides of each plunger.

The external port and the low pressure intake pipe of the above-mentioned unidirectional inlet valve of low pressure are conducted, and the external port of the unidirectional outlet valve of high pressure is connected to high-pressure outlet.

The utility model is compared the outstanding and beneficial technical effects of existing technology:

1, the tapered roller bearing that is provided with on the bent axle of the utility model can be adjusted the radial internal clearance and the axial internal clearance of bearing through the elasticity of adjustment flange and bearing cap, makes bearing can bear bigger axial force and load, has reduced the difficulty of production technology.

2, the utility model has integrally promoted the working efficiency and the working life of high-pressure service pump, and working strength is better, has vast market prospect.

Description of drawings

Fig. 1 is the horizontal diagrammatic cross-sectional view of the utility model.

Fig. 2 is vertical diagrammatic cross-sectional view of the utility model.

Embodiment

The utility model is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1-2;

A kind of connecting rod high-pressure service pump; Crankcase 1, the plunger 8 that is connected with bent axle 3 that comprises cylinder body 6, is spirally connected with cylinder body 6, be arranged on the check valve assembly on the cylinder body 6; The two ends of said bent axle 3 are supported on the relative two side of crankcase 1 through tapered roller bearing 2; The tapered roller bearing 2 of bent axle 3 one ends compresses through being screwed onto bearing cap 7 on crankcase 1 sidewall, the tapered roller bearing 2 of the other end compresses through the flange 4 that is screwed onto on crankcase 1 sidewall; Be provided with the spacer 11 of the axial clearance of regulating tapered roller bearing 2 between the sidewall of bearing cap 7 and crankcase 1; Bent axle 3 stretches out outside the crankcase 1 through the center hole on the flange 4, is rotatably connected to more than one linkage mechanism 5 on the bent axle 3 in the crankcase 1, and the other end of linkage mechanism 5 and plunger 8 are hinged.

The above-mentioned linkage mechanism 5 that is rotatably connected on the bent axle has three, and the plunger cylinder of each linkage mechanism 5 corresponding plunger 8 bottom is provided with a unidirectional inlet valve 9 of low pressure, is provided with a unidirectional outlet valve 10 of high pressure in the plunger cylinder bottom sides of each plunger 8.

The external port and the low pressure intake pipe of the unidirectional inlet valve 9 of above-mentioned low pressure are conducted, and the external port of the unidirectional outlet valve 10 of high pressure is connected to high-pressure outlet.

The foregoing description is merely the preferred embodiment of the utility model, is not the protection domain that limits the utility model according to this, so: the equivalence that all structures according to the utility model, shape, principle are done changes, and all should be covered by within the protection domain of the utility model.

Claims

1. connecting rod high-pressure service pump; Crankcase, the plunger that is connected with bent axle that comprises cylinder body, is spirally connected with cylinder body, be arranged on the check valve assembly on the cylinder body; It is characterized in that: the two ends of said bent axle are supported on the relative two side of crankcase through tapered roller bearing; The tapered roller bearing of bent axle one end compresses through being screwed onto bearing cap on the crankcase side wall, the tapered roller bearing of the other end is through being screwed onto the flange screw on the crankcase side wall; Be provided with spacer between the sidewall of bearing cap and crankcase; Bent axle stretches out outside the crankcase through the center hole on the flange, is rotatably connected to more than one linkage mechanism on the bent axle in the crankcase, and the other end and the plunger of linkage mechanism are hinged.

2. a kind of connecting rod high-pressure service pump according to claim 1; It is characterized in that: the described linkage mechanism that is rotatably connected on the bent axle has three; The plunger cylinder bottom of the corresponding plunger of each linkage mechanism is provided with a unidirectional inlet valve of low pressure, is provided with a unidirectional outlet valve of high pressure in the plunger cylinder bottom sides of each plunger.

3. a kind of connecting rod high-pressure service pump according to claim 2 is characterized in that: the external port and the low pressure intake pipe of the unidirectional inlet valve of described low pressure are conducted, and the external port of the unidirectional outlet valve of high pressure is connected to high-pressure outlet.