CN211851722U

CN211851722U - Sealing faucet on pile driver power head

Info

Publication number: CN211851722U
Application number: CN202020432465.5U
Authority: CN
Inventors: 张国斌; 陈海瑶; 蔡海兵
Original assignee: Wenling Dongyu Heavy Industry Co Ltd
Current assignee: Wenling Dongyu Heavy Industry Co Ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-11-03
Anticipated expiration: 2030-03-30

Abstract

The utility model provides a sealed tap on pile driver unit head belongs to ground construction equipment technical field. It has solved the poor problem of current tap structure singleness leakproofness. The sealed water tap on the pile driver power head comprises a bent pipe, a shell, a mandrel and a grouting pipe, wherein the bent pipe is fixedly connected with the mandrel through a sealing cover, the shell is sleeved outside the mandrel and fastened through bolts, the mandrel is connected with the grouting pipe below the mandrel in a sealing manner, two bearings are arranged between the lower end of the shell and the mandrel in parallel, the two bearings are distributed up and down through a spacer sleeve, the upper end of the shell is inwards sunken through a step structure to enable the diameter of the upper end to be smaller than that of the lower end, the upper end of the shell is axially provided with a plurality of straight-through oil cups with uniform intervals and screw plugs matched with the straight-through oil cups, oil seals are arranged at intervals of each oil cup, and each oil seal is. The utility model has the advantages of good reliability, convenient maintenance and longer service life.

Description

Sealing faucet on pile driver power head

Technical Field

The utility model belongs to the technical field of ground construction equipment, a unit head, in particular to sealed return bend on pile driver unit head is related to.

Background

The pile driver is mainly applied to the projects of waterproof retaining wall of underground works, the protection wall of embedded pipelines, the waterproof and impervious walls of river dams, and the reinforcement of other soft soil foundations, etc., the water tap is one of the important parts of the drilling mechanism and is responsible for conveying liquid or air to wash the hole bottom and cooling drill bits, during the operation process, the water tap mandrel and the power head output shaft are required to synchronously rotate, the shell is static to avoid the distortion and deformation of the conveying pipe, the performance directly influences the use effect of the whole machine, the existing full hydraulic drill water tap generally has the sealing problem, high-pressure liquid or air is easy to leak from the joint of the water tap mandrel and the conveying pipe, so the internal sealing element is frequently replaced when needed, but the traditional full hydraulic water tap has more components, the disassembly and replacement of accessories are difficult, and the construction efficiency is influenced, in the prior art, for example, the power head type full hydraulic, the water tap device is ensured to have reliable sealing performance by sequentially compressing the sealing unit, the gasket, the bearing, the bushing and the water tap body through the pre-tightening force of the water tap body and the upper body, but the specific structure of the sealing unit is not disclosed, and the problems of poor sealing performance and inconvenient maintenance still exist due to the single structure.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, it is good to provide a structure compacter leakproofness, is convenient for maintain the maintenance and the longer sealed tap on the pile driver unit head of life.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a sealed tap on pile driver unit head, includes return bend, casing, dabber and slip casting pipe, its characterized in that, the return bend pass through the closing cap and be connected fixedly with the dabber, the casing cover locate the dabber outside through the bolt-up, the slip casting pipe sealing connection of dabber and below, be provided with two bearings between the lower extreme of casing and the dabber side by side, two distribute from top to bottom through the spacer between the bearing, the upper end of casing is inwards sunken to make the upper end diameter be less than the lower extreme diameter through the stair structure, the upper end axial arrangement of casing is provided with the even straight-through oil cup in a plurality of intervals and with straight-through oil cup matched with plug screw, and the interval department of every oil cup is provided with the oil blanket, every the oil blanket between keep apart through the spacer isolation support.

The sealing faucet on the pile driver power head has the technical effects that: make the upper end diameter be less than the lower extreme diameter with the inside sunken messenger of stair structure through the upper end with the casing, consequently be convenient for install bigger size's bearing in the below, it is longer to make its bear the weight of the better life of supporting effect, and the range of skew is little during the use, furthermore, through this structure on the space that has reduced upper portion in other words, make the oil blanket inseparabler with the cooperation of both sides contact surface, whole oiling volume reduces lubricated more abundant, and separate formation multiunit structure with the spacer ring through with a plurality of through type oil cups and oil blanket, prevent that fluid once runs off, the reliability of its operation has been increased.

In the sealing water faucet on the pile driver power head, an integrated bending joint is arranged on the side of the bent pipe.

In the sealing water faucet on the pile driver power head, the end part of the bending joint is connected with a rubber pipe joint through a pipe buckle, and a fixed pull ring is welded on the bent pipe.

In the sealing faucet on the pile driver power head, the upper part of the bearing is supported by the elastic retainer ring, and the lower part of the bearing is supported by the fixed gland at the bottom of the shell through the bolt.

In the sealing faucet on the pile driver power head, a plurality of O-shaped rings are arranged in parallel on the matching surface of the sealing cover and the mandrel.

In the sealing faucet on the pile driver power head, the inner diameter of the mandrel is 129mm, and the outer diameter of the mandrel is 215 mm.

Compared with the prior art, the sealing water tap has the advantages that the mounting structure of the oil seal and the bearing is more reasonable by arranging the step structure on the shell, the whole sealing performance and lubricating performance are effectively improved, the whole service life is longer, and the reliability in operation can be effectively improved by the design of the multiple groups of straight-through oil cups and the oil seals.

Drawings

Fig. 1 is a schematic structural diagram of the sealed water faucet.

FIG. 2 is a sectional view of the present sealed faucet.

In the figure, 1, a bent pipe; 2. a housing; 3. a mandrel; 4. a grouting pipe; 5. sealing the cover; 6. a bolt; 7. a bearing; 8. a spacer sleeve; 9. a straight-through oil cup; 10. a plug screw; 11. oil sealing; 12. a space ring; 13. bending the joint; 14. pipe buckling; 15. a hose joint; 16. fixing a pull ring; 17. a circlip; 18. a gland; 19. and an O-shaped ring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the sealing water tap on the pile driver power head comprises a bent pipe 1, a shell 2, a mandrel 3 and a grouting pipe 4, wherein the bent pipe 1 is fixedly connected with the mandrel 3 through a sealing cover 5, the shell 2 is sleeved outside the mandrel 3 and fastened through a bolt 6, the mandrel 3 is hermetically connected with the grouting pipe 4 below the mandrel 3, two bearings 7 are arranged between the lower end of the shell 2 and the mandrel 3 in parallel, the two bearings 7 are vertically distributed through a spacer 8, the upper end of the shell 2 is inwards sunken through a step structure to enable the diameter of the upper end to be smaller than that of the lower end, a plurality of through type oil cups 9 with uniform intervals and screw plugs 10 matched with the through type oil cups 9 are axially arranged at the upper end of the shell 2, an oil seal 11 is arranged at the interval of each oil cup, and each oil seal 11 is isolated and supported.

In more detail, an integrated bending joint 13 is arranged on the side of the elbow 1, the end of the bending joint 13 is connected with a rubber pipe joint 15 through a pipe buckle 14, a fixing pull ring 16 is welded on the elbow 1, liquid or air is conveyed through the bending joint 13, the rubber pipe joint 15 is connected through the pipe buckle 14, so that the installation and the disassembly of the rubber pipe joint are facilitated, and the fixing pull ring 16 is used for preventing the bending part of the bending joint 13 from deforming.

Specifically, the top of bearing 7 is supported through card setting circlip 17, and the below of bearing 7 is supported at casing 2 bottom fixed gland 18 through bolt 6, and two bearings 7 form the support between circlip 17, gland 18 and spacer 8 respectively, and the installation effect is more firm.

Specifically, a plurality of O-rings 19 are arranged in parallel on the mating surface of the cover 5 and the mandrel 3 for increasing the sealing performance of the mating surface.

In the sealing water tap on the pile driver power head, the inner diameter of the mandrel 3 is 129mm, and the outer diameter is 215 mm.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms elbow 1, housing 2, mandrel 3, grout pipe 4, cap 5, bolt 6, bearing 7, spacer 8, straight-through oil cup 9, plug 10, oil seal 11, spacer 12, dog joint 13, pipe buckle 14, hose joint 15, retaining tab 16, circlip 17, gland 18, O-ring 19, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. A sealing faucet on a pile driver power head comprises a bent pipe (1), a shell (2), a mandrel (3) and a grouting pipe (4), and is characterized in that the bent pipe (1) is fixedly connected with the mandrel (3) through a sealing cover (5), the shell (2) is sleeved outside the mandrel (3) and fastened through a bolt (6), the mandrel (3) is hermetically connected with the grouting pipe (4) below, two bearings (7) are arranged between the lower end of the shell (2) and the mandrel (3) in parallel, the two bearings (7) are distributed up and down through spacer bushes (8), the upper end of the shell (2) is inwards sunken through a step structure to enable the diameter of the upper end to be smaller than that of the lower end, and a plurality of straight-through oil cups (9) with uniform intervals and screw plugs (10) matched with the straight-through oil cups (9) are axially arranged at the upper end of the shell (2), the oil seals (11) are arranged at intervals of the oil cups, and the oil seals (11) are isolated and supported through space rings (12).

2. The sealing faucet on the power head of the pile driver as recited in claim 1, characterized in that an integrated bending joint (13) is arranged on the side of the elbow (1).

3. The sealing water tap on the power head of the pile driver as claimed in claim 2, wherein the end of the bent joint (13) is connected with a rubber pipe joint (15) through a pipe buckle (14), and a fixed pull ring (16) is welded on the elbow pipe (1).

4. The sealing water tap on the power head of the pile driver as claimed in claim 1, characterized in that the upper part of the bearing (7) is supported by a clamping elastic collar (17), and the lower part of the bearing (7) is supported by a fixed gland (18) at the bottom of the shell (2) through a bolt (6).

5. The sealing faucet on the power head of the pile driver as recited in claim 1, characterized in that the matching surfaces of the sealing cover (5) and the mandrel (3) are provided with a plurality of O-rings (19) in parallel.

6. The sealing faucet on a pile driver power head according to claim 1, characterized in that the spindle (3) has an inner diameter of 129mm and an outer diameter of 215 mm.