CN201495988U

CN201495988U - pit boring machine hung on wheeled tractor

Info

Publication number: CN201495988U
Application number: CN200920234158XU
Authority: CN
Inventors: 张全根
Original assignee: Feida Automobile Maintenance Tool & Equipment Co Ltd Changshu
Current assignee: Feida Automobile Maintenance Tool & Equipment Co Ltd Changshu
Priority date: 2009-07-30
Filing date: 2009-07-30
Publication date: 2010-06-02
Anticipated expiration: 2019-07-30

Abstract

A pit boring machine hung on a wheeled tractor belongs to the technical field of construction machinery of foundation engineering. The wheeled tractor comprises a rear axle and a power take-off shaft; the pit boring machine comprises a suspension arm, an oil pump, a hydraulic station, an oil cylinder for the suspension arm, a hoisting drilling mechanism and a boring mechanism, wherein the lower end of the suspension arm is hinged on the rear axle; the oil pump is fixed with the rear axle, and is in transmission connection with the power take-off shaft; the hydraulic station is fixedly arranged on the rear axle and is connected with the hydraulic oil path of the oil pump; the oil cylinder for the suspension arm is arranged on the hydraulic station, is used for driving the suspension arm to move and is hinged with the suspension arm; the hoisting drilling mechanism is arranged on the suspension arm and is connected with the hydraulic oil path of the hydraulic station; and the boring mechanism is connected with the oil path of the hydraulic station, is hung on the suspension arm, and is connected with the hoisting drilling mechanism. The utility model has the advantages that the pit boring machine has high work efficiency so as to ensure the progress of construction project, and can effectively reduce labor intensity of construction workers.

Description

The pot hole drilling and digging machine of lift-launch on wheeled tractor

Technical field

The utility model belongs to the basic engineering construction field of mechanical technique, is specifically related to the pot hole drilling and digging machine of a kind of lift-launch on wheeled tractor.

Background technology

Construction, well-digging and even afforestation of establishing bar column, the stake of building shallow foundation in the line arrangement of power communication (stringing) construction or the like all will relate to the excavation to terrace (ground), technical information to the excavating device of terrace excavation can particularly be seen in (40 multinomial patents are arranged approximately) in a large number at document in the Chinese patent literature, but, reality to above mentioned but above being not limited in the mentioned construction operation, still account for manual excavation leading, rare employing mechanical equivalent of light excavation.The applicant thinks, why people think highly of the hand excavation and ignore mechanical equivalent of light excavation, reason is that perhaps the practicality shortcoming and the fighting capacity of the trench excavator in the prior art is not strong, so-called practicality shortcoming is meant and is difficult to competent the digging pit of bar column of establishing that so-called fighting capacity is not meant the inefficiency of digging hole, system hole by force.Undoubtedly, rely on manpower to dig hole, system hole, not only efficient is low, and constructor's labour intensity is big, and programming can't ensure.The applicant has also carried out construction on the spot and has observed, and excavating a diameter by strong person one people of body is that the 40cm and the degree of depth are the electric power bar hole of 200cm, and the time that is spent is about more than the 4h, and can only excavate two such holes, hole in one day reluctantly.In view of this, be necessary to be explored, it is terse to develop structure, processing ease and practical pot hole drilling and digging machine, and technical scheme described below produces under this background.

Summary of the invention

It is a kind of simple in structure and efficiency of construction high and use labour intensity that alleviates the constructor and the pot hole drilling and digging machine of lift-launch on wheeled tractor that ensures programming that task of the present utility model is to provide.

Task of the present utility model is finished like this, a kind of pot hole drilling and digging machine that carries on wheeled tractor, described wheeled tractor comprises a back sedan-chair and a power output shaft, and described pot hole drilling and digging machine comprises a cantilever, and the lower end of this cantilever is hinged on the sedan-chair of described back; One oil pump is fixed with described back sedan-chair, and is connect with described power output shaft transmission; One Hydraulic Station is installed on the sedan-chair of back, and connects with described oil pump hydraulic circuit; One is located at being used on the Hydraulic Station orders about the cantilever tank of cantilever motion, and this cantilever tank and cantilever are hinged; One drilling sector is located on the described cantilever, and connects with the Hydraulic Station hydraulic circuit; The one drilling and digging machine structure that connects with described Hydraulic Station oil circuit is hung on the described cantilever, and connects with described drilling sector.

In a specific embodiment of the present utility model, described oil pump has the first oil-feed interface and first oil out port, described Hydraulic Station comprises fuel tank, the control valve valve body that communicates with fuel tank and be located at control valve valve body top and communicate with control valve valve body oil circuit respectively first, second control valve, fuel tank has an oil return interface, this oil return interface is connect by first pipeline and the described first oil-feed interface, the control valve valve body has one second oil-feed interface, this second oil-feed interface connects by second pipeline and described first oil out port, described cantilever tank, the drilling and digging machine structure that is located at the drilling sector on the cantilever and is hung on the cantilever all connects with described control valve valve hydraulic oil road, wherein: described first control valve is controlled described cantilever tank, and described second control valve is controlled described drilling sector and drilling and digging machine structure, the lower end of described cantilever has a pair of articulated jib, and the rear side of described back sedan-chair has a pair of first hinged seat, the described articulated jib and first hinged seat are hinged, the upper end of cantilever constitutes free end, be installed with a coupling seat in this free-ended side, described drilling sector connects at the position and the described drilling and digging machine structure of this coupling seat, and the drilling and digging machine structure is hung on the coupling seat.

In another specific embodiment of the present utility model, described cantilever has the cantilever chamber, described drilling sector comprises carries the brill oil cylinder, first, second, the 3rd rope sheave and pull rope, carrying the brill oil cylinder is installed in the cantilever chamber, connect and be controlled by described second control valve with described control valve valve body oil circuit, the first rope sheave hub setting is in the end of carrying the first oil cylinder post that bores oil cylinder, the second rope sheave hub setting is in the upper end of cantilever and be positioned at described cantilever chamber, the 3rd rope sheave hub setting is on described coupling seat, pull rope is around the home first, second, on the 3rd rope sheave, and an end and first rope sheave of pull rope are fixed, and the other end and described drilling and digging machine structure link.

Go back in the specific embodiment of the present utility model, respectively for having the duplex type road rope sheave of a pair of rope race, described the 3rd rope sheave then is single rope race rope sheave to described first, second rope sheave, and the dual winding of described pull rope is on first, second rope sheave.

In another specific embodiment of the present utility model, described drilling and digging machine structure comprises first guide plate, one group of guide rod, oil motor, auger stem and positioning sleeve, first guide plate and the described coupling seat that is installed in cantilever upper end are hinged, the upper end of one group of guide rod respectively connects firmly on first guide plate, the lower end respectively connects firmly on positioning sleeve, the lower end of oil motor is installed on second guide plate, the upper end is fixed with the 3rd guide plate, second, the 3rd guide plate is slidingly fitted on the guide rod, wherein, the oil motor of oil motor advances, oil return opening and described control valve valve body oil circuit connect, and be controlled by described second control valve, the upper end of auger stem and oil motor connect, and the lower end is corresponding to the location mantle cavity of positioning sleeve.

In another specific embodiment of the present utility model, the bottom of described cantilever is installed with at least one position-limit foot, is furnished with latch on the position-limit foot, the top of described positioning sleeve constitutes a flange, offer on the flange with the quantity of described position-limit foot and equate and the corresponding pin hole in position that the hole and the pin hole that are inserted on the position-limit foot by described latch are positioned at positioning sleeve on the described position-limit foot.

More of the present utility model and in specific embodiment, on the outer wall of described positioning sleeve with the interval state be installed with one group of locating detent that is used for the terrace location.

In of the present utility model and then specific embodiment, the shape of described first, second, third guide plate assumes diamond in shape, and the quantity of described one group of guide rod is a pair of, is 180 ° of intervals each other.

Again more and in specific embodiment, the shape of described first, second, third guide plate is disc the quantity of described one group of guide rod is the 3-4 root of the present utility model, and the spacing between each guide rod equates.

In again of the present utility model and then specific embodiment, the top of described cantilever is installed with a rain cover, and it is corresponding with the top of described coupling seat that this rain cover side direction leans out cantilever.

Technical scheme provided by the utility model rational in infrastructure, to dig the diameter 40cm degree of depth be that the hole, hole of 200cm is an example so that terrace is bored, therefore required time only is 4min, has high efficiency and uses the progress that ensures construction works, and can alleviate constructor's labour intensity effectively.

Description of drawings

Fig. 1 is a specific embodiment structure chart of the present utility model.

Fig. 2 is in the schematic diagram of stand-by state for Fig. 1 structure.

The specific embodiment

For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant general elaborates in conjunction with the accompanying drawings in the mode of embodiment below, but to the description of embodiment all is not restriction to the utility model scheme, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.

Ask for an interview Fig. 1 and Fig. 2, Fig. 2 has illustrated wheeled tractor 1, and according to known general knowledge, wheeled tractor 1 has back sedan-chair 11.Please see Fig. 1 by emphasis, promptly back sedan-chair 11 is installed with a pair of hinged seat 111 on that face of wheeled tractor 1 on the trailing flank of back sedan-chair 11, specifically be that one piece of location-plate, the 1111 usefulness screws with hinged seat 111 are fixing with back sedan-chair 11, a pair of hinged seat 111 walks abreast beyond doubt.The power output shaft hole 112 that the power output shaft 12 of wheeled tractor 1 is stuck on the sedan-chair 11 of back connects with oil pump 3, and oil pump 3 can be from the market acquisition.Oil pump 3 more particularly, is fixed with aforesaid location-plate 1111 by the adapting flange 33 on it and fixing with back sedan-chair 11 with one group of bolt 331.The first oil-feed interface 31 of oil pump 3 connects by the oil return interface on the fuel tank 41 of first pipeline 4111 and Hydraulic Station 4 411, and first oil out port 32 of oil pump 3 connects by the second oil-feed interface 421 on the control valve valve body 42 of second pipeline 4211 and Hydraulic Station 4.

Specifically see Fig. 1, the lower end that one concrete shape is not subjected to the cantilever 2 of Fig. 1 and Fig. 2 restriction is that base portion has a pair of articulated jib 21, this is respectively hinged by first bearing pin 211 and aforesaid hinged seat 111 to articulated jib 21, whole cantilever 2 all is hollow except that the position of articulated jib 21, so that form cantilever chamber 23, the upper end of cantilever 2 constitutes free end, and a side of the upper end that this free-ended end is a cantilever 2 is installed with a coupling seat 22, and coupling seat 22 has a pair of articulated jib 221.Be installed with a rain cover 25 on the top of cantilever 2, this rain cover 25 also can be described as canopy, it is corresponding with the top of coupling seat 22 that one end of rain cover 25 is stuck in cantilever 2, and rain cover 25 both can play and prevent that rainwater from entering the cantilever chamber 23 of cantilever 2, can play the effect of screening to coupling seat 22 again.In the lower end of cantilever 2 and substantially be installed with a pair of position-limit foot 24, offer porose 242 and dispose and be used for the latch 241 in hole 242 of planting on each position-limit foot 24 with described articulated jib 21 intersections.Aforesaid position-limit foot 24 and coupling seat 22 are in the same side on cantilever 2, both are corresponding relation up and down.

Please continue to see Fig. 1, the fuel tank 41 usefulness supports 412 that constitute Hydraulic Station 4 are fixed on the top of back sedan-chair 11; Control valve valve body 42 is configured in the top of fuel tank 41, communicates with fuel tank 41 oil circuits; First, second control valve 43,44 is configured in the top of control valve valve body 42, and each oil duct by inside communicates with control valve valve body 42.The 3rd oil-feed interface 422 of signal control valve valve body 42 is in the drawings connect with drilling and digging machine structure 7 oil circuits by the oil pipe transit joint 26 of the 3rd pipeline 4221 through being fixed on the cantilever 2, and the second oily interface 423 of the control valve valve body of illustrating among the figure 42 connects by the 4th pipeline 4231 and drilling and digging machine structure 7 oil circuits.Again, one of them oil circuit interface 424 on the control valve valve body 42 shown in the figure is connect by corresponding pipeline and drilling sector 6 oil circuits, does not connect and give another oil circuit interface that is equivalent to oil circuit interface 424 that (because of being positioned at the opposite side of control valve valve body 42) is shown oil circuit same and drilling sector 6 in the drawings.With example, connecing into and out of oil of cantilever tank 5 chewed still by the corresponding oil circuit joint (not shown) connection on corresponding oil pipe and the control valve valve body 42.Whether the work of 43 pairs of cantilever tanks 5 of aforesaid first control valve implements control, and whether the work of 44 pairs of drilling sectors 6 of aforesaid second control valve and drilling and digging machine structure 7 implements control.According to professional general knowledge, be furnished with (not marking Reference numeral among the figure) such as safety valve and overflow valves far and away at control valve valve body 42.

The preferred positions of cantilever tank 5 is provided in a side of on the fuel tank 41 of Hydraulic Station 4, and its second oil cylinder post 51 is hinged with the nearly middle part of cantilever 2.When manual when a side is handled the first handle 4311 of first spool 431 of first control valve 43, cantilever tank 5 oil-feeds, the second oil cylinder post 51 stretches out outside cylinder body, cantilever 2 is promoted (dialling under the situation of aforesaid latch 241) downwards, cantilever 2 is leaned forward, otherwise, when when opposite side is pulled first handle 4311, then the second oil cylinder post 51 bounces back in the cylinder body of cantilever tank 5, and cantilever 2 is resetted.

Preferably provided by the utility model but not the structure drilling sector 6 that definitely is limited to is as follows: as to comprise carrying and bore oil cylinder 61, first, second, the

3rd rope sheave

62,64,65 and pull rope 63, carry bore oil cylinder 61 with plumbness be fixed in the cantilever chamber 23 of cantilever 2, and be positioned at the middle part in the cantilever chamber 23 of cantilever 2 substantially, this first oil cylinder post 611 of carrying brill oil cylinder 61 is towards last, first rope sheave 62 is arranged on the aforesaid first oil cylinder post 611 by second bearing pin, 621 pivots, because the end of the first oil cylinder post 611 has a hinge connection seat 6111, therefore by second bearing pin 621 first rope sheave 62 and the first oil cylinder post 611 are articulated, the notion that the pivot once mentioned above pivot joint described here is is provided with, and the notion of pivot setting is meant that first rope sheave 62 is located on the first oil cylinder post 611 rotationally.Second rope sheave 64 by the 3rd bearing pin 641 hub settings (notion of hub setting with to the description of first rope sheave 62) in the cantilever chamber 23 on the top of cantilever 2, the 3rd rope sheave 65 equally by 651 hub settings of the 4th bearing pin on aforesaid articulated jib 221.The pull rope 63 preferred wire rope that adopt, because first,

second rope sheave

62,64 is the rope sheave in duplex type road, therefore pull rope 63 with the mode of dual winding around multiple on first,

second rope sheave

62,64, the 3rd rope sheave 65 is the rope sheave of single rope race, and pull rope 63 is only with mode pile warp the 3rd rope sheave 65 of single rope race.One end of pull rope 63 or title initiating terminal and first rope sheave 62 are fixing, and the other end and the following drilling and digging machine structure 7 that is about to explanation connect.According to known general knowledge, because of aforesaid first,

second rope sheave

62,64 is the rope sheave in duplex type road, therefore, if the first oil cylinder post 61 stretches 30cm, just drilling and digging machine structure 7 is put rope 120cm so, promptly pull rope 63 is put rope 1.2m.

Still see Fig. 1, preferably but not painstakingly the structure of the drilling and digging machine structure 7 that limits is as follows: comprise first guide plate 71, one group of guide rod 72, oil motor 73, auger stem 74 and positioning sleeve 75, central authorities at the upper surface of first guide plate 71 are processed with a pair of hinged ear 711, and are hinged with aforesaid articulated jib 221 with the 5th bearing pin 7111.The upper end of one group of guide rod 72 is fixing with first nut 721 and first guide plate 71, and the lower end is fixing with the flange 752 on positioning sleeve 75 tops with second nut 722.The upper and lower end of oil motor 73 is fixing with the 3rd, second guide plate 732,731 respectively, and second, third guide plate 731,732 is slidingly fitted on one group of guide rod 72, on the 3rd guide plate 732, be installed with a traction sling 7321, be used for connecting with aforesaid pull rope 63.The oil motor oil-in 733 of oil motor 73 connects with aforesaid the 4th pipeline 4231, and the oil motor oil-out 734 of oil motor 73 connects with aforesaid the 3rd pipeline 4221.The upper end of auger stem 74 and oil motor 73 transmissions connect, and the corresponding and external diameter of flight 741 that makes auger stem 74 of the location mantle cavity of lower end and positioning sleeve 75 751 is with to locate mantle cavity 751 suitable.Show by Fig. 1 is detailed, offer a pair of pin hole 7521 on aforesaid flange 752, when the utility model was in holding state, whole drilling and digging machine structure 7 abutted on the cantilever 2, and, drilling and digging machine structure 7 is limited with latch 241 patchhole successively 242 and pin hole 7521.In order to make positioning sleeve 75 under user mode, realize reliably contacting, therefore on the outer wall of positioning sleeve 75, be furnished with one group of locating detent 753 at interval with terrace or title ground.At present embodiment, the applicant all is designed to the shape of rhombus with first, second, third guide plate 71,731,732 and flange 752, and therefore, the quantity of aforesaid one group of guide rod 72 only needs two, each other with 180 ° separately; If be designed to first, second, third guide plate 71,731,732 discoid and flange 752 be designed to circular, the quantity of one group of guide rod 72 needs three at least so, and each is with equidistant configuration.Obviously, preceding a kind of rhombus scheme is comparatively preferred.When by the second handle 4411 of second spool 441 of manual manipulation second control valve 44, promptly, second handle 4411 is pulled to a side, drilling sector 6 puies forward the oil motor 73 that bores oil cylinder 61 and drilling and digging machine structure 7 duty that exists together so, carrying the first oil cylinder post 611 that bores oil cylinder 61 stretches outside cylinder body, make pull rope put rope by the stretching, extension of the first oil cylinder post 611, it is descending to make oil motor 73 take screw rod 74, simultaneously, because the work of oil motor 73, make the flight 741 of screw rod 74 rotate into upturned soil earthy attitude, vice versa.

Then in conjunction with Fig. 1 and Fig. 2, the applicant narrates use of the present utility model, with the excavation to the electric pole hole in the power construction is example, drives toward the job site as long as will carry the wheeled tractor of (supporting have) pot hole drilling and digging machine of the present utility model, makes oil pump 3 in running order.When excavating the hole, hole, at first, pull out a pair of latch 241, handle the first handle 4311 of first spool 431 of first control valve 43, cantilever tank 5 work promote cantilever 2 by the second oil cylinder post 51, touch terrace until the positioning sleeve 75 that makes drilling and digging machine structure 7, promptly by locating detent 753 pawls and terrace.Then handle the second handle 4411 of second spool 441 of second control valve 44, carry and bore oil cylinder 61 and oil motor 73 duty that exists together, order about auger stem 74 rotation at a high speed by oil motor 73, flight 741 by auger stem 74 is turned up soil native, simultaneously, descending (descending in the face of land) with auger stem 74, the first oil cylinder post 611 stretches outside cylinder body simultaneously, its extension degree and pull rope 63 to put rope length ratio be 1: 4, if the first oil cylinder post 611 stretches 50cm, pull rope 63 is put rope 200cm so, and the degree of depth in auger stem 74 brills and the stratum is 200cm.After the degree of depth of getting that expires is understood in bore hole thoroughly, with second handle 4411 to pulling with previous opposite direction, oil motor 73 counter-rotatings, withdraw from the hole, hole, carrying the first oil cylinder post 611 that bores oil cylinder 61 simultaneously bounces back in cylinder body, then handle first handle 4311, make the second oil cylinder post, 51 retractions of cantilever tank 5, cantilever 2 returns back to original state.To implementing excavation in the hole, hole of requirement, behind end-of-job, and after making whole drilling and digging machine structure 7 be posted by on the cantilever 2, latch 241 is inserted and pin hole 7521 lockings repeatedly according to this.

The applicant has carried out examination with the utility model structure in applicant's plant area and has dug, and the result shows, digging diameter is that the 40cm and the degree of depth are required time of hole, hole of 200cm only to be 4min.Therefore the wide open efficient of digging in hole of the utility model structure is very good, has both helped to ensure the completion speed of corresponding engineering, helps alleviating constructor's labour intensity again.Certainly, the utility model also can be applicable to excavation and even the well-digging to the excavation in the shallow foundation stake stake hole of architecture construction and the hole that plants trees, or the like.

Claims

1. the pot hole drilling and digging machine of a lift-launch on wheeled tractor, described wheeled tractor (1) comprises a back sedan-chair (11) and a power output shaft (12), it is characterized in that described pot hole drilling and digging machine comprises a cantilever (2), the lower end of this cantilever (2) is hinged on the described back sedan-chair (11); One oil pump (3) is fixed with described back sedan-chair (11), and is connect with described power output shaft (12) transmission; One Hydraulic Station (4) is installed on the back sedan-chair (12), and connects with described oil pump (3) hydraulic circuit; One is located at being used on the Hydraulic Station (4) orders about the cantilever tank (5) of cantilever (2) motion, and this cantilever tank (5) is hinged with cantilever (2); One drilling sector (6) is located on the described cantilever (2), and connects with Hydraulic Station (4) hydraulic circuit; The one drilling and digging machine structure (7) that connects with described Hydraulic Station (4) oil circuit is hung on the described cantilever (2), and connects with described drilling sector (6).

2. the pot hole drilling and digging machine of lift-launch according to claim 1 on wheeled tractor, it is characterized in that described oil pump (3) has the first oil-feed interface (31) and first oil out port (32), described Hydraulic Station (4) comprises fuel tank (41), the control valve valve body (42) that communicates with fuel tank (41) and be located at control valve valve body (42) top and communicate with control valve valve body (42) oil circuit respectively first, second control valve (43,44), fuel tank (41) has an oil return interface (411), this oil return interface (411) is connect by first pipeline (4111) and the described first oil-feed interface (31), control valve valve body (42) has one second oil-feed interface (421), this second oil-feed interface (421) connects by second pipeline (4211) and described first oil out port (32), described cantilever tank (5), the drilling and digging machine structure (7) that is located at the drilling sector (6) on the cantilever (2) and is hung on the cantilever (2) all connects with described control valve valve body (42) hydraulic circuit, wherein: described first control valve (43) is controlled described cantilever tank (5), and described second control valve (44) is controlled described drilling sector (6) and drilling and digging machine structure (7), the lower end of described cantilever (2) has a pair of articulated jib (21), and the rear side of described back sedan-chair (11) has a pair of first hinged seat (111), described articulated jib (21) is hinged with first hinged seat (111), the upper end of cantilever (2) constitutes free end, be installed with a coupling seat (22) in this free-ended side, described drilling sector (6) connects at the position and the described drilling and digging machine structure (7) of this coupling seat (2), and drilling and digging machine structure (7) is hung on the coupling seat (22).

3. the pot hole drilling and digging machine of lift-launch according to claim 2 on wheeled tractor, it is characterized in that described cantilever (2) has cantilever chamber (23), described drilling sector (6) comprises carries brill oil cylinder (61), first, second, the 3rd rope sheave (62,64,65) and pull rope (63), carrying brill oil cylinder (61) is installed in the cantilever chamber (23), connect and be controlled by described second control valve (44) with described control valve valve body (42) oil circuit, first rope sheave (62) hub setting is in the end of carrying the first oil cylinder post (611) that bores oil cylinder (61), second rope sheave (64) hub setting is in the upper end of cantilever (2) and be positioned at described cantilever chamber (23), the 3rd rope sheave (65) hub setting is on described coupling seat (22), pull rope (63) is around the home first, second, the 3rd rope sheave (62,64,65) on, and an end of pull rope (63) and first rope sheave (62) are fixing, and the other end and described drilling and digging machine structure (7) link.

4. the pot hole drilling and digging machine of lift-launch according to claim 3 on wheeled tractor, it is characterized in that described first, second rope sheave (62,64) is respectively for having the duplex type road rope sheave of a pair of rope race, described the 3rd rope sheave (65) then is single rope race rope sheave, and the dual winding of described pull rope (63) is on first, second rope sheave (62,64).

5. the pot hole drilling and digging machine of lift-launch according to claim 2 on wheeled tractor, it is characterized in that described drilling and digging machine structure (7) comprises first guide plate (71), one group of guide rod (72), oil motor (73), auger stem (74) and positioning sleeve (75), first guide plate (71) is hinged with the described coupling seat (22) that is installed in cantilever (2) upper end, the upper end of one group of guide rod (72) respectively connects firmly on first guide plate (71), the lower end respectively connects firmly on positioning sleeve (75), the lower end of oil motor (73) is installed on second guide plate (731), the upper end is fixing with the 3rd guide plate (732), second, the 3rd guide plate (731,732) be slidingly fitted on the guide rod (72), wherein, the oil motor of oil motor (73) advances, oil return opening (733,734) connect with described control valve valve body (42) oil circuit, and be controlled by described second control valve (44), the upper end of auger stem (74) and oil motor (73) connect, and the lower end is corresponding to the location mantle cavity (751) of positioning sleeve (75).

6. the pot hole drilling and digging machine of lift-launch according to claim 5 on wheeled tractor, the bottom that it is characterized in that described cantilever (2) is installed with at least one position-limit foot (24), is furnished with latch (241) on the position-limit foot (24), the top of described positioning sleeve (75) constitutes a flange (752), offer on the flange (752) with the quantity of described position-limit foot (24) and equate and the corresponding pin hole in position (7521) that the hole (242) and the pin hole (7521) that are inserted on the position-limit foot (24) by described latch (241) are positioned at positioning sleeve (75) on the described position-limit foot (24).

7. the pot hole drilling and digging machine on wheeled tractor according to claim 5 or 6 described lift-launchs, it is characterized in that on the outer wall of described positioning sleeve (75) with the interval state be installed with one group of locating detent (753) that is used for the terrace location.

8. the pot hole drilling and digging machine of lift-launch according to claim 5 on wheeled tractor, the shape that it is characterized in that described first, second, third guide plate (71,731,732) assumes diamond in shape, the quantity of described one group of guide rod (72) is a pair of, is 180 ° of intervals each other.

9. the pot hole drilling and digging machine of lift-launch according to claim 5 on wheeled tractor, the shape that it is characterized in that described first, second, third guide plate (71,731,732) is disc, the quantity of described one group of guide rod (72) is the 3-4 root, and the spacing between each guide rod (72) equates.

10. the pot hole drilling and digging machine on wheeled tractor according to claim 2 or 3 described lift-launchs, the top that it is characterized in that described cantilever (2) is installed with a rain cover (25), and it is corresponding with the top of described coupling seat (22) that this rain cover (25) side direction leans out cantilever (2).