CN203879375U - Protective cylinder driving device and rotary drilling rig - Google Patents

Protective cylinder driving device and rotary drilling rig Download PDF

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Publication number
CN203879375U
CN203879375U CN201420201033.8U CN201420201033U CN203879375U CN 203879375 U CN203879375 U CN 203879375U CN 201420201033 U CN201420201033 U CN 201420201033U CN 203879375 U CN203879375 U CN 203879375U
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China
Prior art keywords
drive unit
pin
bearing pin
terminal pad
hole
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CN201420201033.8U
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Chinese (zh)
Inventor
王青峰
胡佳伟
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Beijing Sany Heavy Machinery Co Ltd
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Beijing Sany Heavy Machinery Co Ltd
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Priority to CN201420201033.8U priority Critical patent/CN203879375U/en
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Abstract

The utility model discloses a protective cylinder driving device and a rotary drilling rig. The protective cylinder driving device comprises a main cylinder body and a connecting plate, wherein the connecting plate is arranged at the head end of the main cylinder body. The connecting plate is provided with a plurality of pin holes and baffles. Hinge pins are arranged in the pin holes. The tail ends of the hinge pins penetrate through the pin holes. The head ends of the hinge pins are provided with limiting plates. The baffles are arranged outside the limiting plates in a blocking mode in the radial direction of the connecting plate so as to limit the movement, in the radial direction of the connecting plate, of the limiting plates. The protective cylinder driving device has the advantages of being simple in structure, convenient to detach and assemble and low in failure rate.

Description

Casing drive unit and rotary drilling rig
Technical field
The utility model relates to engineering machinery field, particularly a kind of casing drive unit and rotary drilling rig.
Background technology
Rotary drilling rig is a kind of construction machinery for the operation of building foundation engineering pore-forming, and it is mainly suitable for the construction of the soil layers such as sand, cohesive soil, slity soil, extensive application in the multiple foundation basic constructions such as castinplace pile, diaphragm wall, underpin.In recent years, along with the quickening of engineering construction step, rotary drilling rig is further extensive in the application of pile foundation pore-forming construction, is also more and more subject to people's attention for the improvement of rotary drilling rig performance.
Rotary drilling rig, for the construction of softer and caving ground, need to be pressed into casing conventionally with protection construction hole, avoids occurring collapse hole.Because existing casing cannot directly be connected with unit head, prior art adopts casing drive unit that casing is connected in to unit head conventionally, so that the driving force of unit head and pressure are passed to casing.Existing casing drive unit generally includes locator of pipe and main cylinder, main cylinder is connected by securing member with locator of pipe, locator of pipe is connected with sleeve by the interface for being connected with platen of unit head sleeve bottom, main cylinder is connected with casing, and the driving force of unit head and pressure pass to casing by locator of pipe and main cylinder successively thus.The defect sturcture complexity of existing casing drive unit, dismounting operation is also comparatively loaded down with trivial details.
Utility model content
In view of this, the utility model proposes one simple in structure, and casing drive unit and the rotary drilling rig of easy accessibility.For achieving the above object, the technical solution of the utility model is achieved in that
On the one hand, the utility model provides a kind of casing drive unit, comprising: main cylinder; Terminal pad, is arranged at the head end of described main cylinder; Described terminal pad is provided with some pin-and-holes and baffle plate; In described pin-and-hole, be provided with bearing pin, the tail end of described bearing pin wore described pin-and-hole, the head end of described bearing pin is provided with limiting plate, and described baffle plate is located at outside described limiting plate along the radially gear of described terminal pad, to limit described limiting plate along described terminal pad moving radially.
Further, described baffle plate comprises: along first arc plate that is radially arranged at described terminal pad external surface of described terminal pad; And with vertical the second arc plate being connected of described the first arc plate.
Further, described terminal pad also comprises caging bolt; On described baffle plate, be provided with screw; Described limiting plate is provided with breach; One end of described caging bolt wore described screw and breach successively.
Further, described breach is U-shaped breach, and the bottom shape of described U-shaped breach and described caging bolt are suitable.
Further, the head end of described bearing pin is also provided with swing handle.
Further, described bearing pin comprises: bearing pin main part and the assisted parts that is arranged at described bearing pin main part head end; Described assisted parts comprises: be sheathed on the annulus part of described bearing pin main part, and be arranged at swing handle and the limiting plate of annulus part periphery.
Further, described some pin-and-holes circumferentially evenly arranging along described terminal pad.
Further, the number of described pin-and-hole is four.
Further, the tail end of described main cylinder is provided with some casing connecting holes.
On the other hand, the utility model also provides a kind of rotary drilling rig, comprises the casing drive unit described in unit head sleeve and above-mentioned any one; The terminal pad of described casing drive unit is sheathed on the periphery of described unit head sleeve bottom, and described unit head sleeve is provided with the connecting hole corresponding with the pin-and-hole of described terminal pad; Described bearing pin wears the pin-and-hole of described terminal pad and the connecting hole of described unit head sleeve successively.
The casing drive unit that the utility model provides arranges terminal pad in one end of main cylinder, on terminal pad, by bearing pin and pin-and-hole are set, it can be directly connected with unit head sleeve, with respect to prior art, saves locator of pipe, simplified structure; Moving radially of baffle plate restriction bearing pin is set simultaneously, and then ensures the fastness that is connected of casing drive unit and unit head, to ensure the reliability of its torsion pass and pressure transmission, reduction fault rate.In addition, this casing drive unit is connected with unit head and only needs to insert bearing pin, rotating pin to its limiting plate is positioned at baffle plate, easy and simple to handle, is conducive to improve dismounting efficiency, lowers labour intensity.In sum, that the casing drive unit that the utility model provides has advantages of is simple in structure, easy accessibility, failure rate is low.
Brief description of the drawings
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
The generalized section of the casing drive unit that Fig. 1 provides for the utility model embodiment;
The structural representation of terminal pad in the casing drive unit that Fig. 2 provides for this practical embodiment;
The structural representation of bearing pin in the casing drive unit that Fig. 3 provides for the utility model embodiment;
Fig. 4 is the schematic top plan view of the assisted parts of bearing pin.
Description of reference numerals:
11 main cylinder 10 terminal pads
2 pin-and-holes
3 baffle plate 31 first arc plates
32 second arc plate 4 bearing pins
4A bearing pin main part 4B assisted parts
41 limiting plate 42 swing handles
43 annulus part 5 caging bolts
6 casing connecting holes
Detailed description of the invention
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the utility model can combine mutually.Below in conjunction with accompanying drawing, each preferred embodiment of the present utility model is described further:
Fig. 1 shows the structure of the casing drive unit that the utility model embodiment provides.The casing drive unit that the present embodiment provides, comprising:
Main cylinder 11;
Terminal pad 10, is arranged at the head end of main cylinder 11; This terminal pad 10 is provided with some pin-and-holes 2 and baffle plate 3, pin-and-hole 2 can with baffle plate 3 corresponding setting one by one; In pin-and-hole 2, be provided with bearing pin 4, the tail end of this bearing pin 4 wore pin-and-hole 2, and the head end of bearing pin 4 is provided with limiting plate 41, and baffle plate 3 is located at outside limiting plate 41 along the radially gear of terminal pad 10, to limit limiting plate 41 along terminal pad 10 moving radially.
The casing drive unit that the present embodiment provides is a tubular structure, it is above-mentioned main cylinder 11, be arranged on main cylinder 11 one end terminal pads 10 and be provided with some pin-and-holes 2 and bearing pin 4, for being connected with unit head sleeve, and then save locator of pipe of the prior art, simplify the structure of this casing drive unit.When installation, terminal pad 10 is sheathed on to the periphery of unit head sleeve, uses above-mentioned bearing pin 4 to wear the connecting hole on pin-and-hole 2 and unit head sleeve.Use bearing pin to be as the reason of connector: with respect to connectors such as bolts, bearing pin has advantages of easy accessibility, is conducive to simplify the dismounting operation of this casing driving mechanism, save time, improve dismounting efficiency.
Further, in order to ensure in work progress, unit head torsion pass pressure transmission is even, and above-mentioned pin-and-hole 2 can circumferentially evenly arranging along described terminal pad 10.For the number of pin-and-hole 2, those skilled in the art can select according to concrete operating mode.Preferably, the number of pin-and-hole 2 is no less than three.But pin-and-hole 2 numbers are too much, the connecting hole number that need to arrange at unit head sleeve is accordingly also more, also more easily affects the mechanical property of unit head sleeve.Therefore, preferred can be as shown in this embodiment, the number of pin-and-hole 2 is four.
Though adopt bearing pin 4 can simplify dismounting as connector, the self-align poor-performing of bearing pin, and the fastness that especially its larger displacement meeting is radially connected with unit head this casing drive unit impacts.In the casing drive unit that the present embodiment provides, the baffle plate 3 that is arranged at terminal pad 10 plays the effect that prevents that bearing pin 4 from radially moving.Particularly, this baffle plate 3 is outsides of being located at the limiting plate 41 of bearing pin 4 head ends along the radially gear of terminal pad 10, thus, and in the time that bearing pin 4 has the trend of radially motion together with its limiting plate 41, its athletic meeting is suppressed by baffle plate 3, plays thus radially spacing effect.Ensure the connection fastness of unit head sleeve and bearing pin 4.
Refer to Fig. 2, above-mentioned baffle plate 3 specifically can comprise: along first circular arc 31 that its external surface is radially set of terminal pad 10; And with vertical the second arc plate 32 being connected of the first arc plate 31.The second arc plate 32 plays barrier effect, and the first arc plate 31 plays the effect of supporting the second arc plate 32, makes to form space between the second arc plate 32 and the master body of terminal pad 10 simultaneously, and this space is for reserving placement space to the limiting plate 41 of bearing pin 4.It will be appreciated by those skilled in the art that, in the time that bearing pin 4 is installed, can be first bearing pin 4 be inserted to pin-and-hole 2 around self axis rotation to the position that its limiting plate 41 is not interfered with baffle plate 3, then rotating pin 4 to its limiting plate 41 between the second circular arc baffle plate 32 and the space of terminal pad master body.
Further, in order to prevent that bearing pin 4 from rotating and causing limiting plate 41 to depart from the blocking position of baffle plate 3 around self axis.Above-mentioned casing drive unit also comprises preferably caging bolt 5 (referring to Fig. 2), corresponding, on baffle plate 3, is provided with screw, and the limiting plate 41 of bearing pin 4 is provided with breach 411 (referring to Fig. 4); One end of above-mentioned caging bolt 5 wore screw and breach 411 successively.This caging bolt 5 is spacing for the rotation of bearing pin 4 is carried out, and prevents from causing limiting plate 41 to depart from the blocking position of baffle plate 3 because its bearing pin 4 rotates, and causes the not limited problem of axially-movable of bearing pin 4.In the time that bearing pin 4 and limiting plate 41 thereof have rotation trend, the limited bolt 5 of its rotation meeting suppresses, and plays thus the effect that suppresses bearing pin 4 rotations.
Breach 411 effects that are arranged on the limiting plate 41 of bearing pin 4 are to form the space that holds caging bolt 5, so that caging bolt 5 can be by stopping the rotation of limiting plate 41 and then the rotation of bearing pin 4 being played to restriction.Above-mentioned breach 411 can be U-shaped breach, and the bottom shape of U-shaped breach is preferably suitable with caging bolt 5.In addition, the bearing pin 4 in above-described embodiment all need to rotate around self axis when mounted, and for the ease of rotating, the head end of above-mentioned bearing pin 4 is also preferably provided with swing handle 42.Particularly, refer to Fig. 3 and Fig. 4, this kind of bearing pin 4 can comprise: bearing pin main part 4A and the assisted parts 4B that is arranged at bearing pin main part 4A head end; Wherein, bearing pin main part 4A is used for being set in pin-and-hole 2; This assisted parts 4B comprises: be sheathed on the annulus part 43 of described bearing pin main part 4A head, and be arranged at swing handle 42 and the limiting plate 41 of annulus part 43 peripheries.In order to ensure bonding strength, above-mentioned assisted parts 4B can weld with bearing pin main part 4A.
In addition,, for the ease of being connected with casing, the tail end of the main cylinder 11 of above-mentioned casing drive unit can also be provided with some casing connecting holes 6.
The installation process of the casing drive unit shown in Fig. 1 is as follows:
Terminal pad 10 is set in to the bottom of unit head sleeve, and makes its pin-and-hole 2 corresponding with the connecting hole of unit head sleeve;
Bearing pin 4 is inserted to the connecting hole of pin-and-hole 2 and unit head sleeve; Rotating pin 4 makes its limiting plate 41 be positioned at the scope that stops of baffle plate 3;
Caging bolt 5 is screwed into the screw of baffle plate 3, and makes caging bolt 5 be positioned at the breach 411 of limiting plate 41;
Completed being thus connected of casing drive unit and unit head.
Unloading process is contrary with above-mentioned steps, does not hereby repeat.
In the casing drive unit that the present embodiment provides, main cylinder 11 is welded construction with terminal pad 10, to ensure the mechanical strength of whole device.In addition, the two also can removably connect, and its advantage is: under rotary bucket engineering method, terminal pad 10 can use as platen separately.
As shown in the above, the casing drive unit that the utility model provides arranges terminal pad by the one end at main cylinder, and the bearing pin arranging on this terminal pad can directly be connected it with pin-and-hole with unit head sleeve, save locator of pipe, simplified structure; Moving radially of baffle plate restriction bearing pin is set simultaneously, and then ensures the fastness that is connected of casing drive unit and unit head, to ensure the reliability of its torsion pass and pressure transmission, reduction fault rate.In addition, this casing drive unit is connected with unit head and only needs to insert bearing pin, rotating pin to its limiting plate is positioned at baffle plate, easy and simple to handle, is conducive to improve dismounting efficiency, lowers labour intensity.In sum, that the casing drive unit that the utility model embodiment provides has advantages of is simple in structure, easy accessibility, failure rate is low.
The utility model embodiment also provides a kind of rotary drilling rig, this rotary drilling rig comprises unit head sleeve and above-mentioned any casing drive unit, the terminal pad of this casing drive unit is sheathed on the periphery of unit head sleeve bottom, and unit head sleeve is provided with the connecting hole corresponding with the pin-and-hole of terminal pad; Bearing pin wears the pin-and-hole of terminal pad and the connecting hole of unit head sleeve successively.
Because above-mentioned any casing drive unit has above-mentioned technique effect, therefore, the rotary drilling rig that is provided with this casing drive unit also should possess corresponding technique effect, and its specific implementation process is similar to the above embodiments, does not hereby repeat.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (10)

1. a casing drive unit, is characterized in that, comprising:
Main cylinder (11);
Terminal pad (10), is arranged at the head end of described main cylinder (11);
Described terminal pad (10) is provided with some pin-and-holes (2) and baffle plate (3); In described pin-and-hole (2), be provided with bearing pin (4), the tail end of described bearing pin (4) wore described pin-and-hole (2), the head end of described bearing pin (4) is provided with limiting plate (41), described baffle plate (3) is outside the radially gear of described terminal pad (10) is located at described limiting plate (41), to limit described limiting plate (41) along described terminal pad (10) motion radially.
2. casing drive unit according to claim 1, it is characterized in that, described baffle plate (3) comprising: along first arc plate (31) that is radially arranged at described terminal pad (10) external surface of described terminal pad (10); And with vertical the second arc plate (32) being connected of described the first arc plate (31).
3. casing drive unit according to claim 1, is characterized in that, described terminal pad (10) also comprises caging bolt (5);
Described baffle plate is provided with screw on (3); Described limiting plate (41) is provided with breach; One end of described caging bolt (5) wore described screw and breach successively.
4. casing drive unit according to claim 3, is characterized in that, described breach is U-shaped breach, and the bottom shape of described U-shaped breach and described caging bolt (5) are suitable.
5. casing drive unit according to claim 1, is characterized in that, the head end of described bearing pin (4) is also provided with swing handle (42).
6. casing drive unit according to claim 1, is characterized in that, described bearing pin (4) comprising: bearing pin main part (4A) and be arranged at the assisted parts (4B) of described bearing pin main part (4A) head end; Described assisted parts (4B) comprising: be sheathed on the annulus part (43) of described bearing pin main part (4A), and be arranged at annulus part (43) peripheral swing handle (42) and described limiting plate (41).
7. casing drive unit according to claim 1, is characterized in that, described some pin-and-holes (2) circumferentially evenly arrange along described terminal pad (10).
8. casing drive unit according to claim 7, is characterized in that, the number of described pin-and-hole (2) is four.
9. casing drive unit according to claim 1, is characterized in that, the tail end of described main cylinder (11) is provided with some casing connecting holes (6).
10. a rotary drilling rig, is characterized in that, comprises the casing drive unit described in unit head sleeve and claim 1 to 9 any one; The terminal pad (10) of described casing drive unit is sheathed on the periphery of described unit head sleeve bottom, and described unit head sleeve is provided with the connecting hole corresponding with the pin-and-hole (2) of described terminal pad (10); Described bearing pin (4) wears the pin-and-hole (2) of described terminal pad (10) and the connecting hole of described unit head sleeve successively.
CN201420201033.8U 2014-04-23 2014-04-23 Protective cylinder driving device and rotary drilling rig Active CN203879375U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420201033.8U CN203879375U (en) 2014-04-23 2014-04-23 Protective cylinder driving device and rotary drilling rig

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420201033.8U CN203879375U (en) 2014-04-23 2014-04-23 Protective cylinder driving device and rotary drilling rig

Publications (1)

Publication Number Publication Date
CN203879375U true CN203879375U (en) 2014-10-15

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CN201420201033.8U Active CN203879375U (en) 2014-04-23 2014-04-23 Protective cylinder driving device and rotary drilling rig

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105041216A (en) * 2015-08-19 2015-11-11 上海中联重科桩工机械有限公司 Rotary drilling rig on which protective casing can be installed
CN105735251A (en) * 2016-01-26 2016-07-06 赵立财 Bridge pile foundation rotary excavating drilling rig cutting type whole guard barrel follow-up pile forming construction method and system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105041216A (en) * 2015-08-19 2015-11-11 上海中联重科桩工机械有限公司 Rotary drilling rig on which protective casing can be installed
CN105735251A (en) * 2016-01-26 2016-07-06 赵立财 Bridge pile foundation rotary excavating drilling rig cutting type whole guard barrel follow-up pile forming construction method and system

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