CN117266899A - Wet-type anchor bores case - Google Patents

Wet-type anchor bores case Download PDF

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Publication number
CN117266899A
CN117266899A CN202311390628.2A CN202311390628A CN117266899A CN 117266899 A CN117266899 A CN 117266899A CN 202311390628 A CN202311390628 A CN 202311390628A CN 117266899 A CN117266899 A CN 117266899A
Authority
CN
China
Prior art keywords
sealing
waterway
box body
assembly
body structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311390628.2A
Other languages
Chinese (zh)
Inventor
黄帅
冀鹏飞
尤涛
叶竹刚
张国新
周文君
周锋涛
叶强
杨光辉
郝振林
高若洋
常建帅
高治强
贺川
高强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yulin S&g Coal Mine Machinery Co ltd
Original Assignee
Yulin S&g Coal Mine Machinery Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yulin S&g Coal Mine Machinery Co ltd filed Critical Yulin S&g Coal Mine Machinery Co ltd
Priority to CN202311390628.2A priority Critical patent/CN117266899A/en
Publication of CN117266899A publication Critical patent/CN117266899A/en
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E21D20/003—Machines for drilling anchor holes and setting anchor bolts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
    • E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/44—Free-space packings
    • F16J15/447—Labyrinth packings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N1/00—Constructional modifications of parts of machines or apparatus for the purpose of lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N2210/00—Applications
    • F16N2210/14—Bearings

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Sealing Devices (AREA)

Abstract

The invention relates to a wet anchor drill box, which comprises a transmission box body assembly and a sealing cover assembly; the transmission box body assembly comprises a transmission assembly and a box body structure; the transmission assembly penetrates through the box body structure and rotates in the box body structure, the top end of the transmission assembly extends out of the box body structure and is connected with the sealing cover assembly, and waterway sealing systems are respectively and correspondingly arranged at the top end of the transmission assembly, the connection part of the transmission assembly and the sealing cover assembly; oil way sealing systems are respectively and correspondingly arranged at the bottom end of the transmission assembly, the joint of the transmission assembly and the box body structure, the inside of the bottom end of the sealing cover assembly and the contact surface of the sealing cover assembly and the box body structure; an isolation assembly is arranged on the contact surface between the bottom end of the sealing cover assembly and the box body structure 。 The application passes through waterThe road sealing system is used for cooling down and dedusting the anchor drill of the underground anchor drill box by cooling water, the oil way sealing system is arranged for lubricating the oil way of the bearing cavity, the isolation assembly is arranged between the sealing cover assembly and the box body structure, and oil and water separation is carried out between the waterway system and the oil way system.

Description

Wet-type anchor bores case
Technical Field
The invention relates to the technical field of underground coal mine support, in particular to a wet type anchor drilling box, and especially relates to a top side and side wet type anchor drilling box on mine anchor protection equipment.
Background
In the tunneling process of coal mine tunnel, the exposed rock stratum top plate receives compressive stress from the upper rock stratum and the lower rock stratum, so that the phenomena of falling and the like are easy to crush, and tunnel support is particularly important. At present, various mechanized supporting devices are developed at home and abroad, the supporting type is mostly designed in the form of an anchor bolt supporting, and a drilling box in the supporting machine is used for bearing anchor drilling and fastening, and can be divided into a dry drilling box and a wet drilling box according to a dust removal mode. The dry drill box sucks dust from the drill rod through the drill box by using a fan, and the wet drill box washes the dust by high-pressure water through the drill box and the drill rod, but the current domestic wet anchor drill box is extremely tested for the sealing effect of the dry drill box due to severe use conditions such as scattering of dust and drill rod cooling water, and the large-area pollution of the whole system is easily caused by the serial communication of waterway and oil circuit systems; the lubrication of the bearing is also mostly carried out by manually and periodically filling and replacing lubricating oil, so that the time and the labor are consumed, the operation method of operators is strictly required by the filling of the lubricating oil, the phenomenon of incomplete lubrication is easy to occur, the bearing is high in temperature, the abnormal sound of the anchor drilling box is serious, the bearing and the seal are damaged, the service life is shortened, the equipment is stopped and maintained frequently, and the shutdown is carried out by mistake.
Disclosure of Invention
In view of this, this application provides a wet-type anchor bores case for solve among the above-mentioned prior art that seal structure of wet-type bores case easily became invalid and lead to water route and oil piping to lead to the problem of system pollution, and need artifical periodic to bearing filling lubricating oil, because receive the restriction of operation technique, lead to not putting in place the lubrication of bearing, make the bearing high temperature, thereby reduce anchor bores case life's problem, concretely speaking:
a wet type anchor drill box, which comprises a transmission box body component and a sealing cover component;
the transmission box body assembly comprises a transmission assembly and a box body structure;
the transmission assembly penetrates through the box body structure, and the top end and the bottom end of the transmission assembly extend out of the box body structure respectively;
the sealing cover assembly is positioned at the top of the box body structure and sleeved at one end of the transmission assembly extending out of the box body structure, an isolation assembly is arranged on the contact surface between the bottom end of the sealing cover assembly and the box body structure, and the sealing cover assembly is fixedly connected with the box body structure;
a water seal is arranged in the top end of the transmission assembly, and waterway sealing systems are respectively and correspondingly arranged in the top end of the transmission assembly, the sleeving part of the transmission assembly and the sealing cover assembly;
oil way sealing systems are respectively and correspondingly arranged in the bottom end of the sealing cover assembly, at the joint of the transmission assembly and the box body structure, at the bottom end of the transmission assembly and at the joint of the box body structure and the sealing cover assembly;
the isolation assembly is used for isolating the waterway sealing system from the oil circuit sealing system.
Preferably, the transmission assembly comprises a rotary shaft and a hydraulic motor;
the hydraulic motor is connected to the bottom of the box body structure in a sealing way;
the bottom of the rotating shaft penetrates through the box body structure and is connected with a spline output shaft of the hydraulic motor, the top of the rotating shaft stretches out of the box body structure and is connected with the sealing cover assembly, and the rotating shaft rotates in the box body structure along the axis.
Preferably, a first shaft shoulder is arranged on the rotating shaft, and a first tapered roller bearing and a second tapered roller bearing are respectively arranged between the rotating shaft and the box body structure;
the inner wall of the box body structure is provided with a second shoulder;
the first tapered roller bearing and the second tapered roller bearing are arranged face to face and are sleeved on the rotating shaft respectively;
the first tapered roller bearing is positioned between the first shaft shoulder and the second shaft shoulder;
the second tapered roller bearing is positioned below the second shoulder, and a lock nut is arranged at the bottom of the second tapered roller bearing;
the locking nut is in threaded connection with the bottom end of the rotating shaft, the locking nut is propped against the bottom of the second tapered roller bearing and is used for adjusting the bearing clearance of the whole of the first tapered roller bearing and the whole of the second tapered roller bearing.
Preferably, a first sealing ring is arranged between the box body structure and the hydraulic motor;
a conical sealing ring is arranged between the bottom end of the rotating shaft and the hydraulic motor;
the upper side and the lower side of the first sealing ring are respectively pressed against the box body structure and the hydraulic motor;
the conical sealing ring is sleeved on the spline output shaft of the hydraulic motor, and the top of the conical sealing ring is propped against the bottom end of the rotating shaft.
Preferably, the oil path sealing system includes: the oil seal cavity and the oil duct;
the oil seal cavity comprises: the first oil seal cavity B cavity is positioned in the bottom end of the rotating shaft, the second oil seal cavity C cavity is positioned at the mounting position of the first tapered roller bearing, and the third oil seal cavity D cavity is positioned at the mounting position of the second tapered roller bearing;
the oil channels comprise an oil drain channel A oil channel of the hydraulic motor and an oil drain channel E oil channel of the hydraulic motor;
the first oil seal cavity B is L-shaped, one end of the first oil seal cavity B is positioned in the bottom end of the rotating shaft and communicated with the oil drain oil duct A, and the other end of the first oil seal cavity B radially penetrates through the rotating shaft and is respectively communicated with the second oil seal cavity C and the third oil seal cavity D;
and the cavity D of the third oil seal cavity is communicated with the oil duct E of the inner oil drain channel.
Preferably, the sealing cover assembly comprises a locking disc, an end cover, a sealing seat and a waterway sealing cover;
one end of the sealing seat is positioned in the waterway sealing cover, and the other end of the sealing seat extends out of the waterway sealing cover;
the end cover is buckled at one end of the sealing seat, which extends out of the waterway sealing cover, the end cover is connected with the waterway sealing cover, and a locking disc is arranged at the top of the end cover;
the part of the rotating shaft extending out of the box body structure sequentially penetrates through the waterway sealing end cover, the sealing seat, the end cover and the locking disc;
the locking disc is positioned above the end cover and is in threaded connection with the rotating shaft;
the bottom inner wall of the waterway sealing cover is provided with a hole check ring, and the waterway sealing cover is connected with the box body structure.
Preferably, the waterway sealing system comprises a water inlet channel, a waterway sealing cavity and a water delivery channel;
the water inlet channel is arranged at one side of the waterway sealing cover, the water inlet channel is positioned at the outer side of the sealing seat, and the water inlet channel is arranged along the radial direction of the waterway sealing cover;
the waterway seal cavity comprises: the first waterway seal cavity is arranged between the seal seat and the waterway seal cover, the second waterway seal cavity is arranged between the seal seat and the rotating shaft, and the third waterway seal cavity is arranged at the top end of the rotating shaft;
the water delivery channel is circumferentially provided with a plurality of groups along the sealing seat, the water delivery channel radially penetrates through the sealing seat, and two ends of the water delivery channel are respectively communicated with the first waterway sealing cavity and the second waterway sealing cavity;
the third water path sealing cavity is L-shaped, the third water path sealing cavity is positioned inside the top end of the rotating shaft, one end of the third water path sealing cavity is positioned at the top of the rotating shaft and communicated with the outside, and the other end of the third water path sealing cavity radially penetrates through the rotating shaft and is communicated with the second water path sealing system.
Preferably, the whole end cover is in a ladder shape, and a dust-proof ring is arranged between the end cover and the top of the sealing seat;
a connecting part is arranged on one side of the end cover, facing the locking disc, and is an annular bulge;
a connecting groove matched with the connecting part is formed in one side, contacted with the end cover, of the locking disc;
the annular bulge at the top end of the end cover and the connecting groove at the lower end of the locking disc form a labyrinth-shaped isolation protection channel together.
Preferably, the outer wall of the sealing seat is provided with a plurality of outer sealing grooves, and the inner wall of the sealing seat is provided with a plurality of inner sealing grooves;
the outer seal grooves and the inner seal grooves are respectively arranged along the axial direction of the seal seat.
Preferably, the isolation assembly comprises a second sealing ring, an oil seal, an inner sealing ring and an outer sealing ring;
the oil seal is arranged on the inner side of one end of the waterway sealing cover, which is inserted into the box body structure;
the second sealing ring is sleeved on the outer side of the waterway sealing cover, and the inner side and the outer side of the second sealing ring respectively press against the outer wall of the waterway sealing cover and the inner wall of the box body structure;
the inner sealing ring is positioned in the inner sealing groove;
the outer sealing ring is located in the outer sealing groove.
Compared with the prior art, the beneficial effect of this application lies in:
the application adopts two-cavity two-seal to ensure the oil-water separation effect between the water cavity and the oil cavity in the wet anchor drilling box. The method comprises the following steps: the water path sealing system is arranged at the upper end of the water path sealing cover and the top end of the rotating shaft in the transmission box body assembly to seal the water path at the top of the wet anchor drill box; an oil way sealing system is arranged at the bottom end of the rotating shaft and in the box body structure, and the bearing in the wet anchor drilling box is lubricated through the oil way sealing system; an isolation assembly is arranged between the sealing cover assembly and the box body structure, and the waterway sealing system and the oil way sealing system are isolated by utilizing the double sealing effect of the isolation assembly, so that different liquid circulation states in the two cavities are formed;
the tapered roller bearing is adopted for transmission, so that the radial bearing capacity is strong, and the working adaptability is strong;
the labyrinth dustproof structure is adopted, so that the dustproof and waterproof effects are high, and the abrasion of the dustproof ring is reduced. The method comprises the following steps:
the hydraulic motor with the internal leakage circulation oil cavity is combined with the internal structure of the transmission box body assembly to carry out circulation type internal lubrication, the internal leakage oil liquid of the hydraulic motor is used for carrying out mobility lubrication on two tapered roller bearings arranged in the box body structure and spline pairs at the output shaft of the hydraulic motor, heat energy generated by high-speed and high-precision rotation of the rotating shaft of the anchor drilling box is taken away, the running temperature of the wet anchor drilling box is kept to be stable dynamically, and the circulation type internal lubrication system has low dependence on periodic maintenance requirements of personnel;
an isolation assembly is arranged between the sealing cover assembly and the box body structure to isolate the waterway sealing system and the oil way sealing system, so that an upper liquid flow channel and a lower liquid flow channel are formed in the wet type anchor drilling box and are not interfered with each other, and the installation sequence of parts and the convenience of disassembly, assembly and maintenance are fully considered;
the tapered roller bearing is adopted between the rotating shaft and the box body structure for high-precision rotation, the bearing capacity of combined load (axial load and radial load) is enhanced, the reliability of rotation and the capacity of containing angle errors are improved, and the impact toughness of the wet anchor drilling box is greatly enhanced.
In this application, through locking dish and the labyrinth channel looks lock of end cover, form first shielding, make dust and the cooling water liquid that the drill rod during operation falls from the coal roof unable direct invasion wet-type anchor bores the incasement portion, the second that the inside dust ring of rethread end cover formed protects, and the third that sealing washer formed protects in the sealing seat has reduced its adverse effect greatly, guarantees the reliability of wet-type anchor bores the sealing effect of case.
The hydraulic motor that this application adopted is low-speed big moment of torsion cycloid hydraulic motor, adopts low-speed big moment of torsion cycloid hydraulic motor, and is small, light in weight, and motor moment of torsion satisfies the operation requirement, and radial and axial bearing capacity is higher, and moment of inertia is little, easily starts, and the operation is smooth and easy, and the operating torque in great rotational speed scope is stable, makes wet-type anchor drill case overall structure compacter, and model application scope is wider.
The wet type anchor drilling box adopts a circulating internal lubrication system, has low personnel dependence, can greatly avoid the phenomenon of sudden reduction or damage of the service life of the anchor drilling box caused by insufficient oiling lubrication or untimely lubricant replacement of personnel, has high maintenance of the lubrication effect and quick heat dissipation of transmission;
the wet type anchor drilling box has the advantages of compact integral structure, small volume, light weight, low requirement on installation space and equipment model and strong universality, and can be used for anchoring and protecting operations of top sides and side sides, and secondary connecting rods are not needed for one-time forming.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
In the drawings:
FIG. 1 is a schematic view of a wet anchor drilling box according to an embodiment of the present invention;
FIG. 2 is a top view of a wet anchor drilling box according to an embodiment of the present invention;
FIG. 3 is a semi-sectional view A-A of a wet anchor drilling box according to an embodiment of the present invention;
FIG. 4 is a schematic illustration of a seal cover assembly in a wet anchor drilling box according to an embodiment of the present invention;
FIG. 5 is a schematic view of a transmission housing assembly in a wet anchor drilling housing according to an embodiment of the present invention;
the novel water-saving type water-saving device comprises a 1-transmission box body component, a 101-transmission component, a 102-box body structure, 10101-water seals, a 10102-rotating shaft, a 10103-first tapered roller bearing, a 10104-second tapered roller bearing, a 10105-first sealing ring, a 10106-locking nut, a 10107-tapered sealing ring, a 10108-fastening piece, a 10109-hydraulic motor, a 10110-second shaft shoulder, a 10111-first shaft shoulder, a 2-sealing cover component, a 201-locking disc, a 202-end cover, a 203-sealing seat, a 204-waterway sealing cover, a 205-sealing cover, a 206-water inlet channel, a 207-hole retainer ring, a 208-second sealing ring, a 209-oil seal, a 210-lower inner sealing ring, a 211-lower outer sealing ring, a 212-water conveying channel, a 213-upper outer sealing ring, a 214-upper inner sealing ring and a 215-dustproof ring.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
A wet type anchor drill box according to the figures 1-5 comprises a transmission box body assembly 1 and a sealing cover assembly 2;
the transmission box body assembly 1 comprises a transmission assembly 101 and a box body structure 102;
the transmission assembly 101 penetrates through the box body structure 102, and the top end and the bottom end of the transmission assembly 101 extend out of the box body structure 102 respectively;
the sealing cover assembly 2 is positioned at the top of the box body structure 102 and sleeved at one end of the transmission assembly 101 extending out of the box body structure 102, an isolation assembly is arranged on the contact surface between the bottom end of the sealing cover assembly 2 and the box body structure 102, and the sealing cover assembly 2 is fixedly connected with the box body structure 102;
a water seal 10101 is arranged in the top end of the transmission assembly 101, and waterway sealing systems are respectively and correspondingly arranged in the top end of the transmission assembly 101, at the joint of the transmission assembly 101 and the sealing cover assembly 2 and at the joint of the sealing cover assembly 2;
oil way sealing systems are respectively and correspondingly arranged in the bottom end of the sealing cover assembly 2, at the joint of the transmission assembly 101 and the box body structure 102, at the bottom end of the transmission assembly 101 and at the joint of the box body structure 102 and the sealing cover assembly 2;
the isolation assembly separates the waterway seal system from the oil seal system.
Further, the transmission assembly 101 comprises a rotating shaft 10102 and a hydraulic motor 10109;
the hydraulic motor 10109 is connected to the bottom of the box structure 102 in a sealing manner;
the bottom end of the rotating shaft 10102 passes through the box structure 102 and is connected with a spline output shaft of the hydraulic motor 10109, the top end of the rotating shaft 10102 extends out of the box structure 102 and is connected with the sealing cover assembly 2, and the rotating shaft 10102 rotates in the box structure 102 along an axis.
Further, a first shaft shoulder 10111 is provided on the rotating shaft 10102, and a first tapered roller bearing 10103 and a second tapered roller bearing 10104 are respectively provided between the rotating shaft 10102 and the box structure 102;
the inner wall of the box body structure 102 is provided with a second shoulder 10110;
the first tapered roller bearing 10103 and the second tapered roller bearing 10104 are arranged face to face and are respectively sleeved on the rotating shaft 10102;
the first tapered roller bearing 10103 is located between the first shoulder 10111 and the second shoulder 10110;
the second tapered roller bearing 10104 is located below the second shoulder 10110, and a lock nut 10106 is disposed at the bottom of the second tapered roller bearing 10104;
the lock nut 10106 is in threaded connection with the bottom end of the rotating shaft 10102, the lock nut 10106 is pressed against the bottom of the second tapered roller bearing 10104, and is used for adjusting the bearing clearance of the whole of the first tapered roller bearing 10103 and the second tapered roller bearing 10104.
Further, a first sealing ring 10105 is disposed between the tank structure 102 and the hydraulic motor 10109;
a conical sealing ring 10107 is arranged between the bottom end of the rotating shaft 10102 and the hydraulic motor 10109;
the upper and lower sides of the first sealing ring 10105 are respectively pressed against the box body structure 102 and the hydraulic motor 10109;
the conical sealing ring 10107 is sleeved on a spline output shaft of the hydraulic motor 10109, and the top of the conical sealing ring 10107 is propped against the bottom end of the rotating shaft 10102.
Further, the oil path sealing system includes: the oil seal cavity and the oil duct;
the oil seal cavity comprises: a first oil seal cavity B cavity positioned in the bottom end of the rotating shaft 10102, a second oil seal cavity C cavity positioned at the installation position of the first tapered roller bearing 10103 and a third oil seal cavity D cavity positioned at the installation position of the second tapered roller bearing 10104;
the oil channels comprise an oil drain channel A oil channel of the hydraulic motor 10109 and an oil drain channel E oil channel of the hydraulic motor 10109;
the first oil seal cavity B is L-shaped, one end of the first oil seal cavity B is positioned in the bottom end of the rotating shaft 10102 and is communicated with the oil drain oil duct A, and the other end of the first oil seal cavity B radially penetrates through the rotating shaft 10102 and is respectively communicated with the second oil seal cavity C and the third oil seal cavity D;
and the cavity D of the third oil seal cavity is communicated with the oil duct E of the inner oil drain channel.
Further, the sealing cover assembly 2 comprises a locking disc 201, an end cover 202, a sealing seat 203 and a waterway sealing cover 204;
one end of the sealing seat 203 is positioned in the waterway sealing cover 204, and the other end of the sealing seat 203 extends out of the waterway sealing cover 204;
the end cover 202 is buckled at one end of the sealing seat 203, which extends out of the waterway sealing cover 204, the end cover 202 is connected with the waterway sealing cover 204, and a locking disc 201 is arranged at the top of the end cover 202;
the part of the rotating shaft 10102 extending out of the box body structure 102 sequentially passes through the waterway sealing cover 204, the sealing seat 203, the end cover 202 and the locking disc 201;
the locking disc 201 is positioned above the end cover 202 and is in threaded connection with the rotating shaft 10102;
the inner wall of the bottom end of the waterway sealing cover 204 is provided with a hole retainer ring, and the waterway sealing cover 204 is connected with the box body structure 102.
Further, the waterway sealing system comprises a water inlet channel 206, a waterway sealing cavity and a water delivery channel;
the water inlet channel 206 is arranged at one side of the waterway sealing cover 204, the water inlet channel 206 is positioned at the outer side of the sealing seat 203, and the water inlet channel 206 is arranged along the radial direction of the waterway sealing cover 204;
the waterway seal cavity comprises: a first waterway seal cavity provided between the seal base 203 and the waterway seal cover 204, a second waterway seal cavity provided between the seal base 203 and the rotating shaft 10102, and a third waterway seal cavity provided at the top end of the rotating shaft 10102;
the water delivery channel 212 is circumferentially provided with a plurality of groups along the sealing seat 203, the water delivery channel 212 radially penetrates through the sealing seat 203, and two ends of the water delivery channel 212 are respectively communicated with the first waterway sealing cavity and the second waterway sealing cavity;
the third waterway seal cavity is L-shaped, the third waterway seal cavity is positioned inside the top end of the rotating shaft 10102, one end of the third waterway seal cavity is positioned at the top of the rotating shaft 10102 and is communicated with the outside, and the other end of the third waterway seal cavity radially penetrates through the rotating shaft 10102 and is communicated with the second waterway seal system.
Further, the whole end cover 202 is in a step shape, and a dust-proof ring 215 is arranged between the end cover 202 and the top of the sealing seat 203;
a connecting part is arranged on one side of the end cover 202 facing the locking disc, and the connecting part is an annular bulge;
a connecting groove matched with the connecting part is formed on one side of the locking disc 201, which is contacted with the end cover 202;
the annular protrusion at the top end of the end cover 202 and the connecting groove at the lower end of the locking disc 201 together form a labyrinth-shaped isolation protection channel.
Further, the outer wall of the sealing seat 203 is provided with a plurality of outer sealing grooves, and the inner wall of the sealing seat 203 is provided with a plurality of inner sealing grooves;
the outer seal grooves and the inner seal grooves are respectively arranged along the axial direction of the seal seat 203.
Further, the isolation assembly comprises a second sealing ring 208, an oil seal 209, an inner sealing ring and an outer sealing ring;
the oil seal 209 is arranged on the inner side of one end of the waterway sealing cover 204 inserted into the box body structure 102;
the second sealing ring 208 is sleeved on the outer side of the waterway sealing cover 204, and the inner side and the outer side of the second sealing ring 208 respectively press against the outer wall of the waterway sealing cover 204 and the inner wall of the box body structure 102;
the inner sealing ring is positioned in the inner sealing groove, and is a star-shaped ring;
the outer sealing ring is located in the outer sealing groove.
It should be noted that:
in this application, the sealing cover assembly 2 is sealingly connected to the top of the case assembly 25, and in the sealing cover assembly 2:
a through accommodating cavity is formed in the waterway sealing cover 204 along the axial direction, the waterway sealing cover 204 is integrally T-shaped, a water inlet channel 206 is formed in one side of the waterway sealing cover 204, the water inlet channel 206 is formed in the radial direction of the waterway sealing cover 204, one end of the water inlet channel 206 is communicated with the accommodating cavity, a water inlet is formed in the other end of the water inlet channel 206, the water inlet is axially formed, one end of the water inlet is communicated with the water inlet channel 206, the other end of the water inlet is downwards formed, and the water inlet is communicated with an external system water supply pipe; a plug 205 is arranged on one side of the water inlet far away from the water inlet channel 206;
an oil seal 209 is arranged in the bottom end of the waterway seal cover 204 and is used for separating a water seal system from the oil seal 209 system; a limiting hole check ring 207 is arranged on the inner side of the bottom end of the waterway sealing cover 204, the hole check ring 207 is fixedly connected to the inner wall of the waterway sealing cover 204, the oil seal 209 is positioned above the hole check ring 207, and the hole check ring 207 is used for limiting the oil seal 209; a second sealing ring 208 is arranged on the outer side of the bottom end of the waterway sealing cover 204;
the second sealing ring 208 is sleeved outside the bottom end of the waterway sealing cover 204;
the sealing seat 203 is inserted into the inner side of the upper end of the accommodating cavity of the waterway sealing cover 204, the whole sealing seat 203 is in an annular structure, and two annular inner sealing grooves are arranged on the inner wall of the sealing seat 203 at intervals along the axial direction; the outer wall of the sealing seat 203 is provided with two annular outer sealing grooves at intervals along the axial direction, and the middle part of the sealing seat 203 is provided with a plurality of groups of radial water delivery channels 212; the two inner sealing grooves are respectively positioned on the upper side and the lower side of the outer sealing grooves on the two sides, wherein the inner sealing grooves are respectively internally provided with an inner sealing ring, the outer sealing grooves are respectively internally provided with an outer sealing ring, and in one embodiment of the application, the inner sealing rings and the outer sealing rings are respectively provided with 2 channels;
the water delivery channel 212 is positioned between the two outer sealing grooves;
the micro cavity formed among the outer wall of the sealing seat 203, the lower outer sealing ring 211, the upper outer sealing ring 213 and the upper inner wall of the waterway sealing cover 204 is a first waterway sealing cavity I cavity;
an annular second waterway seal cavity II is arranged between the two inner seal grooves, and one side of the second waterway seal cavity II is communicated with the first waterway seal cavity I through a water delivery channel 212;
the connecting part of the rotating shaft 101 and the sealing cover assembly 2 is provided with a third waterway sealing cavity III which is L-shaped, one end of the third waterway sealing cavity extends out from the top end of the rotating shaft 101 to be communicated with the outside, and the other end of the third waterway sealing cavity extends through the rotating shaft along one side of the rotating shaft 101 in the radial direction and is communicated with the other side of the second waterway sealing cavity II;
the sealing principle of the waterway sealing system is as follows: the system water supply firstly enters the outer wall of the sealing seat 203, the 2 outer sealing rings (namely an upper outer sealing ring 213 and a lower outer sealing ring 211 which are arranged along the axial direction at intervals) and a first micro-cavity waterway sealing cavity I cavity formed between the upper inner wall of the waterway sealing cover 204 through a water inlet W port arranged at one side of the bottom of the waterway sealing cover 204, and the sealing seat 203 and the waterway sealing cover 204 are sealed for the first time through the 2 outer sealing rings; then enters a second waterway seal cavity II cavity through a water delivery channel 212 arranged on the seal seat 203, namely flows into a cavity between two inner seal grooves arranged on the inner wall of the seal seat 203, and performs second seal between the seal seat 203 and the rotating shaft 101 through two inner seal rings (namely an upper inner seal ring 214 and a lower inner seal ring 210 which are arranged at intervals along the axial direction); the rotation shaft 101 rotates, water enters the third waterway sealing cavity III from the second waterway sealing cavity II, the third waterway sealing is carried out through a water seal 10101 arranged in one end of the third waterway sealing cavity communicated with the outside, the water seal 10101 prevents water liquid in the third waterway sealing cavity from leaking from a gap between the drill rod and the rotation shaft 101, and finally the water liquid is injected into the drill rod to assist in anchor drilling operation.
The axial section of the end cover 202 is of a U-shaped structure with a downward opening, the end cover 202 is positioned above the sealing seat 203, and a dust ring 215 is arranged between the end cover 202 and the sealing seat 203;
the dust ring 215 is positioned in the inner cavity of the end cover 202, the top end and the bottom end of the dust ring 215 are respectively contacted with the end cover 202 and the sealing seat 203, and the end cover 202 is buckled on the waterway sealing cover 204 and the sealing seat 203;
the top of the end cover 202 is provided with a locking disc 201, and one side of the end cover 202 facing the locking disc 201 is provided with an annular bulge; the annular bulge is fixedly connected with the locking disc 201, a connecting groove corresponding to the annular bulge is formed in one side, facing the end cover 202, of the locking disc 201, and the shape and the size of the connecting groove are matched with those of the annular bulge;
the locking disc 201 is the annular structure wholly, the inner wall of locking disc 201 is provided with the internal thread that matches with rotation axis 101, locking disc 201 passes through the top of screw thread screw in rotation axis 101, locking disc 201 can rotate together with rotation axis 101, when locking disc 201 and rotation axis 101 lock completely, annular protrusion inserts in this moment in the connecting groove, form a miniature air cavity between the two, namely in this application, the threaded connection of locking disc 201 and rotation axis 101, and the connecting groove that sets up in locking disc 201 bottom forms labyrinth shape with the annular protrusion at end cover 202 top, combine dust ring 215 in the end cover 202, form labyrinth shape dustproof construction promptly, can more effectively prevent by the direct invasion wet anchor drill case of four water dispersions and dust that produce when wet anchor drill case anchor drill operation, reduce the wearing and tearing of dust ring 215 and upper external seal 213, thereby extension wet anchor drill case life.
The box body structure 102 in the transmission box body assembly 1 is of a cylindrical structure as a whole, and the box body structure 102 is rotatably connected with the rotating shaft 101;
one end of the rotating shaft 101 penetrates through the box body structure 102 to be connected with an output shaft of the hydraulic motor 10109 through a spline pair, the rotating shaft 101 is rotationally connected with the box body structure 102, and the other end of the rotating shaft 101 extends out of the box body structure 102 and sequentially penetrates through the waterway sealing cover 204, the sealing seat 203 and the end cover 202 to be in threaded connection with the locking disc 201;
the rotating shaft 101 is provided with a first shaft shoulder 10111, the inner side of the box body structure 102 is provided with a second shaft shoulder 10110, the second shaft shoulder 10110 is positioned below the first shaft shoulder 10111, the second shaft shoulder 10110 is fixedly connected to the inner wall of the box body structure 102, the second shaft shoulder 10110 divides the inner side of the box body structure into an upper bearing installation cavity and a lower bearing installation cavity, namely a C cavity, between the first shaft shoulder 10111 and the second shaft shoulder 10110, and a lower bearing installation cavity, namely a D cavity, is formed between the second shaft shoulder 10110 and the hydraulic motor 10109;
a first tapered roller bearing 10103 and a second tapered roller bearing 10104 are respectively arranged between the rotating shaft 101 and the box structure 102 along the extending direction; wherein the first tapered roller bearing 10103 is installed in the upper installation cavity, and the second tapered roller bearing 10104 is installed in the lower installation cavity;
the bottom of the second tapered roller bearing 10104 is provided with a lock nut 10106;
the bottom end of the box body structure 102 is provided with a hydraulic motor 10109, one side of the bottom end of the box body structure 102, which is contacted with the hydraulic motor 10109, is provided with a bottom annular sealing groove, and a first sealing ring 10106 is arranged in the bottom annular sealing groove; the first sealing ring 10106 is used for sealing connection between the hydraulic motor 10109 and the box structure 102; the upper side and the lower side of the first sealing ring 10106 are respectively abutted with the box body structure 102 and the hydraulic motor 10109; the first sealing ring 10106 is fixed by a fastener 10108, specifically: the screws are threaded into the housing structure 102 sequentially through the hydraulic motor 10109 and the spring washer.
In the application, the joint of the rotating shaft 101 and the sealing cover assembly 2 is sealed through a waterway sealing system, and the joint of the rotating shaft 101 and the box body structure 102 is sealed through an oil way sealing system;
wherein the oil circuit sealing system is:
in the circulating internal lubrication system, as shown in fig. 3, high-pressure hydraulic oil entering from a P port flows into a first oil path sealing cavity B cavity arranged at the bottom end of a rotating shaft 101 through an oil drain passage a of a hydraulic motor 10109, and first, necessary lubrication is performed on a spline pair at the output shaft end of the hydraulic motor 10109; because the cavity B is respectively communicated with the upper mounting cavity and the lower mounting cavity, hydraulic oil flows into the cavity C and the cavity D through the oil drain port of the rotating shaft via the cavity B, so that the hydraulic oil performs flow lubrication on the first tapered roller bearing 10103 and the second tapered roller bearing 10104, and is blocked by an oil seal 209 arranged in the bottom end of the waterway sealing cover 204 and a second sealing ring 208 arranged outside the bottom end of the waterway sealing cover 204, so that the leakage of the oil in the cavity C is prevented; meanwhile, the first sealing ring 10106 arranged between the box body structure 102 and the hydraulic motor 10109 is used for sealing, so that the D cavity oil liquid is prevented from leaking; through the conical sealing ring 10107 arranged between the bottom end of the rotating shaft 10102 and the hydraulic motor 10109, the oil in each venation is fully mobilized to flow, so that the oil in the cavity D flows through the inner oil drain E of the hydraulic motor 10109 and main oil return, and is converged into an oil tank through the T port of the hydraulic motor 10109 to finish filtering and cooling.
When the waterway sealing cover assembly 2 is connected with the transmission box body assembly 1, the bottom of the waterway sealing cover 204 is inserted into the inner side of the top of the box body structure 102, a second sealing ring 208 is arranged on the contact surface between the outer side of the bottom of the waterway sealing cover 204 and the inner wall of the box body structure 102, and the second sealing ring 208 is sleeved on the outer side of the bottom of the waterway sealing cover 204 to realize oil isolation; meanwhile, an oil seal 209 is arranged on the inner side of the bottom of the waterway sealing cover 204, so that the waterway sealing system and the oil way sealing system are isolated for the first time; the outer wall of seal holder 203 is provided with a plurality of outer seal grooves, the inner wall of seal holder 203 is provided with a plurality of inner seal grooves, is provided with interior sealing washer and outer sealing washer respectively in outer seal groove and the inner seal groove, forms to seal the aqueous humor to realize the isolated secondary seal of waterway seal system and oil circuit seal system.
In the application, the maximum dimension of the outer shape of the wet type anchor drill box is 176mm multiplied by 146mm multiplied by 318mm, and the mass is 31.5kg, and compared with the wet type anchor drill box of the same type, the wet type anchor drill box is small in size and light in weight.
The wet type anchor drilling box is not limited to the technical scheme of the top side and side wet type anchor drilling box on the mine anchor protecting equipment.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (10)

1. A wet type anchor drill box is characterized by comprising a transmission box body assembly (1) and a sealing cover assembly (2);
the transmission box body assembly (1) comprises a transmission assembly (101) and a box body structure (102);
the transmission assembly (101) penetrates through the box body structure (102), and the top end and the bottom end of the transmission assembly (101) extend out of the box body structure (102) respectively;
the sealing cover assembly (2) is positioned at the top of the box body structure (102) and sleeved at one end of the transmission assembly (101) extending out of the box body structure (102), an isolation assembly is arranged on the contact surface between the bottom end of the sealing cover assembly (2) and the box body structure (102), and the sealing cover assembly (2) is fixedly connected with the box body structure (102);
a water seal (10101) is arranged in the top end of the transmission assembly (101), and a waterway sealing system is correspondingly arranged in the top end of the transmission assembly (101), at the joint of the transmission assembly (101) and the sealing cover assembly (2) and in the sealing cover assembly (2) respectively;
an oil way sealing system is correspondingly arranged in the bottom end of the sealing cover assembly (2), at the joint of the transmission assembly (101) and the box body structure (102), at the bottom end of the transmission assembly (101) and at the joint of the box body structure (102) and the sealing cover assembly (2);
the isolation assembly separates the waterway seal system from the oil seal system.
2. A wet anchor drilling kit according to claim 1, characterized in that the transmission assembly (101) comprises a rotation shaft (10102) and a hydraulic motor (10109);
the hydraulic motor (10109) is connected to the bottom of the box structure (102) in a sealing manner;
the bottom of the rotating shaft (10102) penetrates through the box structure (102) to be connected with a spline output shaft of the hydraulic motor (10109), the top of the rotating shaft (10102) stretches out of the box structure (102) to be connected with the sealing cover assembly (2), and the rotating shaft (10102) rotates in the box structure (102) along an axis.
3. A wet anchor drilling box according to claim 2, characterized in that a first shaft shoulder (10111) is arranged on the rotating shaft (10102), and a first tapered roller bearing (10103) and a second tapered roller bearing (10104) are respectively arranged between the rotating shaft (10102) and the box body structure (102);
the inner wall of the box body structure (102) is provided with a second shoulder (10110);
the first tapered roller bearing (10103) and the second tapered roller bearing (10104) are arranged face to face and are respectively sleeved on the rotating shaft (10102);
the first tapered roller bearing (10103) is located between the first shoulder (10111) and the second shoulder (10110);
the second tapered roller bearing (10104) is positioned below the second shoulder (10110), and a lock nut (10106) is arranged at the bottom of the second tapered roller bearing (10104);
the locking nut (10106) is in threaded connection with the bottom end of the rotating shaft (10102), the locking nut (10106) is propped against the bottom of the second tapered roller bearing (10104) and is used for adjusting bearing play of the whole of the first tapered roller bearing (10103) and the whole of the second tapered roller bearing (10104).
4. A wet anchor drilling box according to claim 3, characterized in that a first sealing ring (10105) is arranged between the box structure (102) and the hydraulic motor (10109);
a conical sealing ring (10107) is arranged between the bottom end of the rotating shaft (10102) and the hydraulic motor (10109);
the upper side and the lower side of the first sealing ring (10105) are respectively pressed against the box body structure (102) and the hydraulic motor (10109);
the conical sealing ring (10107) is sleeved on a spline output shaft of the hydraulic motor (10109), and the top of the conical sealing ring (10107) is propped against the bottom end of the rotating shaft (10102).
5. A wet anchor drilling kit as recited in claim 4, wherein the oil path sealing system comprises: the oil seal cavity and the oil duct;
the oil seal cavity comprises: the first oil seal cavity B is positioned in the bottom end of the rotating shaft (10102), the second oil seal cavity C is positioned at the installation position of the first tapered roller bearing (10103), and the third oil seal cavity D is positioned at the installation position of the second tapered roller bearing (10104);
the oil channels comprise an oil drain channel A oil channel of the hydraulic motor (10109) and an oil drain channel E oil channel of the hydraulic motor (10109);
the first oil seal cavity B is L-shaped, one end of the first oil seal cavity B is positioned in the bottom end of the rotating shaft (10102) and is communicated with the oil drain passage A, and the other end of the first oil seal cavity B radially penetrates through the rotating shaft (10102) and is respectively communicated with the second oil seal cavity C and the third oil seal cavity D;
and the cavity D of the third oil seal cavity is communicated with the oil duct E of the inner oil drain channel.
6. A wet anchor drilling kit according to claim 2, wherein the sealing cover assembly (2) comprises a locking disc (201), an end cover (202), a sealing seat (203) and a waterway sealing cover (204);
one end of the sealing seat (203) is positioned in the waterway sealing cover (204), and the other end of the sealing seat (203) extends out of the waterway sealing cover (204);
the end cover (202) is buckled at one end of the sealing seat (203) extending out of the waterway sealing cover (204), the end cover (202) is connected with the waterway sealing cover (204), and a locking disc (201) is arranged at the top of the end cover (202);
the part of the rotating shaft (10102) extending out of the box body structure (102) sequentially passes through the waterway sealing cover (204), the sealing seat (203), the end cover (202) and the locking disc (201);
the locking disc (201) is positioned above the end cover (202) and is in threaded connection with the rotating shaft (10102);
the inner wall of the bottom end of the waterway sealing cover (204) is provided with a hole retainer ring (207), and the waterway sealing cover (204) is connected with the box body structure (102).
7. A wet anchor drilling kit according to claim 6, wherein the waterway sealing system comprises a waterway (206), a waterway sealing cavity, and a water delivery channel (212);
the water inlet channel (206) is arranged on one side of the waterway sealing cover (204), the water inlet channel (206) is positioned on the outer side of the sealing seat (203), and the water inlet channel (206) is arranged along the radial direction of the waterway sealing cover (204);
the waterway seal cavity comprises: a first waterway seal cavity arranged between the seal seat (203) and the waterway seal cover (204), a second waterway seal cavity arranged between the seal seat (203) and the rotating shaft (10102), and a third waterway seal cavity arranged at the top end of the rotating shaft (10102);
the water delivery channels (212) are circumferentially provided with a plurality of groups along the sealing seat (203), the water delivery channels (212) radially penetrate through the sealing seat (203), and two ends of the water delivery channels (212) are respectively communicated with the first waterway sealing cavity and the second waterway sealing cavity;
the third waterway seal cavity is L-shaped, the third waterway seal cavity is positioned inside the top end of the rotating shaft (10102), one end of the third waterway seal cavity is positioned at the top of the rotating shaft (10102) and is communicated with the outside, and the other end of the third waterway seal cavity radially penetrates through the rotating shaft (10102) and is communicated with the second waterway seal system.
8. A wet anchor drilling box according to claim 6, characterized in that the end cover (202) is integrally stepped, and a dust ring (215) is arranged between the end cover (202) and the top of the sealing seat (203);
a connecting part is arranged on one side of the end cover (202) facing the locking disc, and the connecting part is an annular bulge;
a connecting groove matched with the connecting part is formed in one side, contacted with the end cover (202), of the locking disc (201);
the annular bulge at the top end of the end cover (202) and the connecting groove at the lower end of the locking disc (201) form a labyrinth-shaped isolation protection channel together.
9. The wet type anchor drill box according to claim 6, wherein the outer wall of the sealing seat (203) is provided with a plurality of outer sealing grooves, and the inner wall of the sealing seat (203) is provided with a plurality of inner sealing grooves;
the outer seal grooves and the inner seal grooves are respectively arranged along the axial direction of the seal seat (203).
10. A wet anchor drilling kit according to claim 9, wherein the isolation assembly comprises a second seal ring (208), an oil seal (209), an inner seal ring and an outer seal ring;
the oil seal (209) is arranged on the inner side of one end of the waterway sealing cover (204) inserted into the box body structure (102);
the second sealing ring (208) is sleeved on the outer side of the waterway sealing cover (204), and the inner side and the outer side of the second sealing ring (208) respectively press against the outer wall of the waterway sealing cover (204) and the inner wall of the box body structure (102);
the inner sealing ring is positioned in the inner sealing groove;
the outer sealing ring is located in the outer sealing groove.
CN202311390628.2A 2023-10-25 2023-10-25 Wet-type anchor bores case Pending CN117266899A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311390628.2A CN117266899A (en) 2023-10-25 2023-10-25 Wet-type anchor bores case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311390628.2A CN117266899A (en) 2023-10-25 2023-10-25 Wet-type anchor bores case

Publications (1)

Publication Number Publication Date
CN117266899A true CN117266899A (en) 2023-12-22

Family

ID=89215894

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311390628.2A Pending CN117266899A (en) 2023-10-25 2023-10-25 Wet-type anchor bores case

Country Status (1)

Country Link
CN (1) CN117266899A (en)

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