CN209040751U

CN209040751U - Power head

Info

Publication number: CN209040751U
Application number: CN201821471484.8U
Authority: CN
Inventors: 周秀静
Original assignee: Beijing New Energy Source Intelligent Equipment Co Ltd
Current assignee: Beijing New Energy Source Intelligent Equipment Co Ltd
Priority date: 2018-09-07
Filing date: 2018-09-07
Publication date: 2019-06-28
Anticipated expiration: 2028-09-07

Abstract

This disclosure relates to a kind of power head, power head includes shell, is equipped on shell: gear shaft, stretches out shell for exporting drilling rod driving force；Gear drive is socketed on the outside of gear shaft, is rotated with gear shaft；Top hammer mechanism is connected on rear side of gear drive, for beating the rear end of gear shaft；And support mechanism, supporting mechanism includes the spring being set on gear shaft and the spring pad for being fitted to spring rear end, the guide sleeve being fixedly set on gear shaft is provided between spring and gear shaft, the shaft shoulder for being against spring pad rear end is formed on guide sleeve, to limit after being formed to spring, it is provided with the thrust bearing being sleeved on gear shaft between the front end and shell of spring, to form front limit to spring.Thrust bearing can generate rotation, can reduce resistance when gear shaft rotation.Spring can make gear shaft generate vibration when being hammered, and then solve the problems, such as bit freezing in drilling rod boring procedure, and spring can absorb part of impact force protection shell.

Description

Power head

Technical field

This disclosure relates to drilling machine field, and in particular, to a kind of power head.

Background technique

Currently, the existing power head for drilling mostly uses rotary power head, power head is dynamic to drilling rod output rotation Power drills, and during drilling, drilling rod is frequently used for being bored under bad ground since the depth pierced is deeper Hole, therefore it occur frequently that pipe becoming stuck is lived or drilling rod the phenomenon that falling if there is this situation will affect the work of power head drilling Make efficiency, and be easily damaged equipment, increases many maintenance costs.

Utility model content

Purpose of this disclosure is to provide a kind of power head, which can make drilling rod boring procedure more smooth.

To achieve the goals above, the disclosure provides a kind of power head, and the power head includes shell, pacifies on the shell Be equipped with: gear shaft stretches out the shell for exporting drilling rod driving force；Gear drive is socketed on the outside of the gear shaft, To drive the gear shaft to rotate；Top hammer mechanism is connected on rear side of the gear drive, for beating the gear shaft Rear end；And mechanism is supported, the mechanism that supports includes the spring being set on the gear shaft and is fitted to the bullet The spring pad of spring rear end is provided with the guide sleeve being fixedly set on the gear shaft between the spring and the gear shaft, The shaft shoulder for being against the spring pad rear end is formed on the guide sleeve, to limit after being formed to the spring, the spring The thrust bearing being sleeved on the gear shaft is provided between front end and the shell, to form front limit to the spring.

Optionally, the shell include first shell, the second shell that is coaxially mounted in front of the first shell, it is described Top hammer mechanism includes the top hammer piston being reciprocally mounted on inside the first shell and the second shell, the top It hammers piston into shape and the gear shaft is coaxially arranged.

Optionally, the top hammer piston exterior is arranged with piston ring.

Optionally, the top hammer mechanism further include be mounted on the second shell side and with the hydraulic company of the second shell Logical driving device, the driving device include the spool for driving valve and being mounted on inside the driving valve, and the spool is by institute It states the in-house hydraulic oil driving of top hammer and converts oil circuit, so that the top hammer piston moves back and forth.

Optionally, at least one force-storing device is installed on the outside of the second shell, it is described for storing and releasing energy Force-storing device is mounted in the second shell by distributing valve, to control the pressure in the second shell.

Optionally, the gear drive includes at least one first gear, each first gear rotation of driving Motor, and the second gear with the first gear external toothing, the second gear be socketed on the gear shaft.

Optionally, multiple first gears turn to identical.

Optionally, the first gear is connect by inscribed shaft with the motor.

Optionally, thrust ring is installed, the thrust ring is sleeved on described lead between the thrust bearing and the shell To putting on.

Optionally, the shell includes third shell and the 4th shell that connect with the third shell, and the gear passes Motivation structure is mounted in the third shell, and the front end of the gear shaft is stretched out from the 4th shell, the thrust ring installation On the 4th shell.

Through the above technical solutions, gear drive gear shaft rotates, gear shaft carries out under the action of rotation Drilling, thrust bearing can generate rotation with the rotation of gear shaft, therefore can reduce resistance when gear shaft rotation.Due to Spring at front end is limited by thrust bearing, and spring rear end is against on the shaft shoulder of guide sleeve by spring pad and is limited, and is oriented to Set is fixedly mounted on gear shaft, therefore spring can make gear shaft generate vibrating effect in the hammering by top hammer mechanism, And then the problem of be able to solve bit freezing in drilling rod boring procedure, and spring can absorb part of impact force to prevent housing failure, The service life of power head thus can be improved.

Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.

Detailed description of the invention

Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:

Fig. 1 is the structural schematic diagram for the power head that one illustrative embodiments of the disclosure provide；

Fig. 2 is the schematic diagram of another angle for the power head that one illustrative embodiments of the disclosure provide.

Description of symbols

1 gear shaft, 101 spring, 102 guide sleeve

103 spring pad, 104 thrust bearing, 105 thrust ring

106 the 4th shell, 201 first shell, 202 second shell

203 top hammer piston, 204 piston ring, 205 distributing valve

206 force-storing device, 207 sealing ring, 301 first gear

302 motor, 303 second gear, 304 third shell

Specific embodiment

It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.

In the disclosure, in the absence of explanation to the contrary, the noun of locality used such as "front", "rear" make according to use practise Used definition, specifically, it can refer to the page of Fig. 1, before left side is in Fig. 1, after right side is, "inner", "outside" are for phase For itself profile for answering components；The term " first " that uses, " second " are to distinguish an element and another is wanted Element does not have succession and importance.In the following description when referring to the accompanying drawings, unless otherwise indicated, the identical mark in different attached drawings Note represents the same or similar element.

As depicted in figs. 1 and 2, the disclosure provides a kind of power head, which includes shell, is equipped on shell: tooth Wheel shaft 1, gear drive, top hammer mechanism and support mechanism.Gear shaft 1 stretches out shell for exporting drilling rod driving force；Tooth Wheel drive mechanism is socketed in 1 outside of gear shaft, with the rotation of gear shaft 1；Top hammer mechanism is connected on rear side of gear drive, For beating the rear end of gear shaft 1；Mechanism is supported to include the spring 101 being set on gear shaft 1 and be fitted to spring 101 The spring pad 103 of rear end is provided with the guide sleeve 102 being fixedly set on gear shaft 1 between spring 101 and gear shaft 1, guiding Set 102 on be formed with the shaft shoulder for being against 103 rear end of spring pad, with to spring 101 formed after limit, the front end of spring 101 and shell The thrust bearing 104 being sleeved on gear shaft 1 is provided between body, to form front limit to spring 101.When gear shaft 1 is hammered into shape When hitting, spring 101 compresses under the action of the shaft shoulder of guide sleeve 102, after gear shaft 1 leaves in top hammer mechanism, spring 101 Can be rebounded the length condition that affranchises immediately, and in the process, the Repeated Compression of spring 101 and release can be such that gear shaft 1 generates Vibrating effect, therefore can solve drilling rod in boring procedure the case where bit freezing.Wherein, spring 101 can be disk spring, butterfly The buffering damping capaicty of shape spring is strong, can bear big load with small deformation.In the disclosure, by being removably mounted on gear shaft Thrust bearing 104 and guide sleeve 102 on 1 carry out front limit and rear limit to spring 101, in this way in thrust bearing 104 respectively In the case where influencing the limit of spring 101 after wearing with guide sleeve 102, it is easy to remove and repair or replaces.In other embodiments, The front and back limit of spring 101 can also be completed by way of forming the shaft shoulder on gear shaft 1.

Through the above technical solutions, gear drive gear shaft 1 rotate, gear shaft 1 under the action of rotation into Row drilling, the thrust bearing 104 for being socketed in 1 outside of gear shaft can generate rotation with the rotation of gear shaft 1, therefore can subtract Resistance when pinion shaft 1 rotates.Since 101 front end of spring is limited by thrust bearing 104,101 rear end of spring passes through spring Pad 103 is against on the shaft shoulder of guide sleeve 102 and is limited, and guide sleeve 102 is fixedly set on gear shaft 1, therefore spring 101 Gear shaft 1 can be made to generate vibrating effect in the hammering by top hammer mechanism, and then be able to solve in drilling rod boring procedure and block The problem of brill, and spring 101 can absorb part of impact force to prevent housing failure, thus the use longevity of power head can be improved Life.

Further, thrust ring 105 is installed, thrust ring 105 is sleeved on guide sleeve between thrust bearing 104 and shell On 102.Thrust ring 105 is arranged between thrust bearing 104 and shell, can resist thrust bearing 104 and be resistant to top hammer mechanism Impact force, to protect shell.

Specifically, as shown in Figure 1, shell may include first shell 201, be coaxially mounted to 201 front of first shell Second shell 202, top hammer mechanism may include being reciprocally mounted on inside first shell 201 and second shell 202 Top hammer piston 203, top hammer piston 203 and gear shaft 1 are coaxially arranged.Top hammer piston 203 can forward extend out the hammer of second shell 202 The rear end for hitting gear shaft 1 impacts gear shaft 1 forward, and can return to backward in first shell 201 and second shell 202, It is thusly-formed reciprocating motion.

According to an embodiment of the present disclosure, top hammer mechanism can also include be mounted on 202 side of second shell and with The driving device of 202 hydraulic communication of second shell, driving device include the spool for driving valve and being mounted on inside driving valve, spool Oil circuit is converted by the in-house hydraulic oil driving of top hammer, so that top hammer piston 203 moves back and forth.Specifically, work as top When hammer piston 203 hammers forward gear shaft 1 and is moved to corresponding position, i.e., top hammer piston 203 forward extends out second shell 202, And when merging out the position that second shell 202 is connected to driving device, the hydraulic oil inside second shell 202 can pass through oil duct stream Into the driving device of hydraulic communication therewith, and the spool inside driving valve is pushed to generate displacement, the movement of spool can make oil Road conversion.Then, top hammer piston 203 can be moved rearwardly into first shell 201, be merged out when top hammer piston 203 moves backward When the position that second shell 202 is connected to driving device, the hydraulic oil inside second shell 202 can flow to driving device again, To realize the conversion again of oil circuit, the multiple conversions of oil circuit are so completed, to realize the reciprocating motion of top hammer piston 203.It needs It is noted that top hammer piston 203 hammers forward the movement of gear shaft 1 for the first time in the disclosure, can be filled by external oil pressure cntrol It sets and discharges oil pressure into first shell 201 from 201 rear end of first shell to complete.

In order to seal the hydraulic oil between top hammer piston 203 and first shell 201 and second shell 202, top hammer piston 203 Outside can also be arranged with piston ring 204.It just can be in driving device and outer in this way between first shell 201 and second shell 202 It is poor that oil pressure is generated under the action of portion's hydraulic pressure control device, and then realizes the reciprocating motion of top hammer piston 203.In order to preferably seal Sealing ring 207 can be set in hydraulic oil, the rear end of first shell 201 and the front end of second shell 202.

In the disclosure, the outside of second shell 202 can be equipped at least one force-storing device 206, for storing and discharging Energy, force-storing device 206 is mounted in second shell 202 by distributing valve 205, to control the pressure in second shell 202.Chu Li Device 206 can according to need from absorbing in second shell 202 or releasing energy into second shell 202, to guarantee: living in top hammer When plug 203 needs to hammer gear shaft 1 forward, the pressure in second shell 202 is less than the pressure in first shell 201；In top hammer When piston 203 needs to retract backward, the pressure in second shell 202 is greater than the pressure in first shell 201.Distribution can be passed through The state of the control force-storing device 206 of valve 205.It, can be in order to preferably control pressure according to an embodiment of the present disclosure Multiple force-storing devices 206 are installed in the outside of two shells 202 can also pacify in other embodiments in the outside of first shell 201 Multiple above-mentioned force-storing devices 206 are filled, guarantee first shell 201 and second shell 202 by adjusting the pressure in first shell 201 Between pressure difference.Air bag can be installed inside force-storing device 206, in air bag can filled with gas, can be absorbed by air bag or Air pressure is discharged to adjust the pressure in first shell 201 or second shell 202.

Shell can also be including third shell 304 and the 4th shell 106 connecting with third shell 304, gear drive machine Structure is mounted in third shell 304, and the front end of gear shaft 1 is stretched out from the 4th shell 106, second shell 202 and third shell 304 By flanged joint, thrust ring 105 is mounted on the 4th shell 106.Entire power is formed by the way that above-mentioned multiple shells are arranged Head, convenient for carrying out detachable maintaining in the case where the damage of a certain mechanism of power head.

As shown in Figure 1, the gear drive of the disclosure includes at least one first gear 301, each first tooth of driving The motor 302 of 301 rotation of wheel, and the second gear 303 with 301 external toothing of first gear, second gear 303 are socketed in gear On axis 1.Motor 302 drives first gear 301 to rotate, and first gear 301 is engaged on the outside of second gear 303 and drives second gear 303 rotations, so that driving, which is mounted on the rotation of the gear shaft 1 inside second gear 303, carries out boring work.Wherein, gear shaft 1 with The engagement system of second gear 303 can use the fit system of spline and keyway, and motor 302 can be hydraulic motor or electronic Motor.In the disclosure, first gear 301 can be pinion gear, and second gear 303 can be gear wheel, by power from pinion gear It is transmitted to gear wheel, the revolving speed of gear wheel can be reduced and promotes the torque of the output of gear shaft 1, the drilling rod for driving gear shaft 1 The load capacity with higher in drilling.

Change revolving speed and torque to can according to need second gear 303, can be engaged on the outside of second gear 303 There are multiple first gears 301, multiple first gears 301 turn to identical.Multiple first gears 301 are evenly arranged on outside second gear 303 Side can be controlled by a motor 302, can also be controlled by multiple motors 302.First gear 301 is by being inscribed shaft It is connect with motor 302, the inscribed mode of shaft and first gear 301 can also be using the side of above-mentioned spline and keyway cooperation Formula.

The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure Monotropic type, these simple variants belong to the protection scope of the disclosure.

It is further to note that specific technical features described in the above specific embodiments, in not lance In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the disclosure to it is various can No further explanation will be given for the combination of energy.

In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally Disclosed thought equally should be considered as disclosure disclosure of that.

Claims

1. a kind of power head, which is characterized in that the power head includes shell, is equipped on the shell:

Gear shaft (1) stretches out the shell for exporting drilling rod driving force；

Gear drive is socketed on the outside of the gear shaft (1), to drive the gear shaft (1) to rotate；

Top hammer mechanism is connected on rear side of the gear drive, for beating the rear end of the gear shaft (1)；And

Mechanism is supported, the mechanism that supports includes the spring (101) being set on the gear shaft (1) and is fitted to described The spring pad (103) of spring (101) rear end, is provided between the spring (101) and the gear shaft (1) and is fixedly set in institute The guide sleeve (102) on gear shaft (1) is stated, is formed with the axis for being against the spring pad (103) rear end on the guide sleeve (102) Shoulder, to be provided with and be sleeved between the front end and the shell of the spring (101) to being limited after the spring (101) formation Thrust bearing (104) on the gear shaft (1), to form front limit to the spring (101).

2. power head according to claim 1, which is characterized in that the shell includes first shell (201), is co-axially mounted Second shell (202) in front of the first shell (201), the top hammer mechanism are described including being reciprocally mounted on The top hammer piston (203) of first shell (201) and the second shell (202) inside, the top hammer piston (203) and the tooth Wheel shaft (1) is coaxially arranged.

3. power head according to claim 2, which is characterized in that top hammer piston (203) outer cover is equipped with piston ring (204)。

4. power head according to claim 2, which is characterized in that the top hammer mechanism further includes being mounted on the second shell Body (202) side and driving device with the second shell (202) hydraulic communication, the driving device include driving valve and peace Spool inside the driving valve, the spool are driven by the in-house hydraulic oil of the top hammer and convert oil circuit, with The top hammer piston (203) is set to move back and forth.

5. power head according to claim 2, which is characterized in that be equipped at least on the outside of the second shell (202) One force-storing device (206), for storing and releasing energy, the force-storing device (206) is mounted on described the by distributing valve (205) On two shells (202), to control the pressure in the second shell (202).

6. power head according to claim 1, which is characterized in that the gear drive includes at least one first tooth The motor (302) of (301), each first gear (301) rotation of driving is taken turns, and is nibbled outside with the first gear (301) The second gear (303) of conjunction, the second gear (303) are socketed on the gear shaft (1).

7. power head according to claim 6, which is characterized in that multiple first gears (301) turn to identical.

8. power head according to claim 7, which is characterized in that the first gear (301) passes through inscribed shaft and institute State motor (302) connection.

9. power head according to claim 1, which is characterized in that pacify between the thrust bearing (104) and the shell Equipped with thrust ring (105), the thrust ring (105) is sleeved on the guide sleeve (102).

10. power head according to claim 9, which is characterized in that the shell include third shell (304) and with it is described 4th shell (106) of third shell (304) connection, the gear drive are mounted in the third shell (304), institute The front end for stating gear shaft (1) is stretched out from the 4th shell (106), and the thrust ring (105) is mounted on the 4th shell (106) on.