CN114934558B - Full hydraulic rotary impact crusher - Google Patents

Full hydraulic rotary impact crusher Download PDF

Info

Publication number
CN114934558B
CN114934558B CN202210347988.3A CN202210347988A CN114934558B CN 114934558 B CN114934558 B CN 114934558B CN 202210347988 A CN202210347988 A CN 202210347988A CN 114934558 B CN114934558 B CN 114934558B
Authority
CN
China
Prior art keywords
piston
cylinder body
drill rod
teeth
sawtooth
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.)
Active
Application number
CN202210347988.3A
Other languages
Chinese (zh)
Other versions
CN114934558A (en
Inventor
高二庆
王倩
李娟�
梁奎
李云鹏
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.)
Xuzhou But Construction Machinery Manufacturing Joint Stock Co ltd
Original Assignee
Xuzhou But Construction Machinery Manufacturing Joint Stock 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 Xuzhou But Construction Machinery Manufacturing Joint Stock Co ltd filed Critical Xuzhou But Construction Machinery Manufacturing Joint Stock Co ltd
Priority to CN202210347988.3A priority Critical patent/CN114934558B/en
Publication of CN114934558A publication Critical patent/CN114934558A/en
Application granted granted Critical
Publication of CN114934558B publication Critical patent/CN114934558B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F5/00—Dredgers or soil-shifting machines for special purposes
    • E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
    • E02F5/305—Arrangements for breaking-up hard ground
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

The invention discloses a full-hydraulic rotary-impact crusher, which comprises a hydraulic system, a piston part and a drill rod part, wherein the hydraulic system drives the piston part to rotate and drives the drill rod part to rotate, the hydraulic system drives the piston part to impact up and down at the same time, and the full-hydraulic rotary-impact crusher realizes continuous rotation and intermittent impact compound motion. The full hydraulic rotary impact crusher of the invention takes hydraulic pressure as power to drive a piston to rotate and drive a drill rod to rotate, and the hydraulic pressure drives the piston to impact up and down at the same time, thereby realizing the breaking hammer of the continuous rotation and intermittent impact composite motion principle. According to the invention, through designing full hydraulic drive, the drill rod simultaneously carries out continuous rotation and intermittent striking, so that the crushing loading of complex stress is obtained, and the crushing efficiency and efficiency are effectively improved.

Description

Full hydraulic rotary impact crusher
Technical Field
The invention belongs to the field of engineering machinery breaking hammers, and particularly relates to a full-hydraulic rotary-impact type breaker.
Background
The tail end of the excavator or the loader is provided with a breaking hammer to realize the breaking and dismantling work of mines, buildings and road facilities. The existing working principle of the breaking hammer utilizes a main machine to provide hydraulic power, a hydraulic piston of the breaking hammer continuously strikes a drill rod, and the drill rod continuously impacts a breaking body.
The traditional breaking hammer drives a piston rod by hydraulic driving and nitrogen energy storage boosting, and the piston rod impacts a drill rod to realize breaking action. CN111188510a, "a hydraulic breaking hammer with static pressure supporting structure", invented an upper hydraulic cylinder (nitrogen), a middle hydraulic cylinder (large chamber) and a lower hydraulic cylinder (small chamber), and utilizes the nitrogen power and the middle hydraulic power to implement the quick striking and the secondary striking function of the lower cylinder. The CN111456618A 'a secondary impact hydraulic breaking hammer' is characterized in that a secondary drill rod is sleeved in a main drill rod, a piston rod simultaneously impacts the main drill rod and the secondary drill rod to complete primary impact, and the secondary drill rod is gradually pressed down along with the drill rod to realize secondary impact. The invention patent 202011310016.4, namely a Laval type gas-liquid double-power dust-free rock breaking machine, utilizes hydraulic pressure and pneumatic double power to realize the breaking of low-frequency resonance and high-frequency continuous striking.
Based on the working principle of the crushing hammer of the present invention, the method mainly aims at improving the striking mode of the drill rod on the crushing body and improving the crushing effect. The crusher adopts the principle of continuous rotation and intermittent impact combined action to realize the combined action of rotation torsion and impact striking on the crushing body and realize larger crushing power and crushing effect.
Disclosure of Invention
In view of the fact that the existing various crushers are in an intermittent striking crushing mode, the crushing efficiency is low. The invention aims to provide a full hydraulic rotary impact crusher which can be conveniently connected with an excavator to solve the problems.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the full-hydraulic rotary-impact crusher comprises a hydraulic system, a piston component and a drill rod component, wherein the hydraulic system drives the piston component to rotate and drives the drill rod component to rotate, the hydraulic system drives the piston component to impact up and down at the same time, and the full-hydraulic rotary-impact crusher realizes continuous rotation and intermittent impact compound motion.
The hydraulic system is a hydraulic motor, the piston part comprises a piston, the drill rod part comprises a drill rod, the hydraulic motor, the piston and the drill rod are arranged in an upper cylinder body, a middle cylinder body assembly and a lower cylinder body assembly which are sequentially connected from top to bottom, wherein:
the hydraulic motor is positioned at the top of the upper cylinder body, the output end of the hydraulic motor is connected with the upper end of the piston, and the hydraulic motor drives the piston to rotate and impact up and down;
the upper end of the piston is positioned in the upper cylinder body, the middle part of the piston is positioned in the middle cylinder body assembly, the lower end of the piston is positioned in the lower cylinder body assembly, and the lower end of the piston is mechanically connected with the drill rod and drives the drill rod to rotate; the lower part of the piston is provided with dynamic sawtooth lower teeth, the lower cylinder body is internally provided with fixed static sawtooth upper teeth, and the fixed static sawtooth upper teeth can be meshed with the dynamic sawtooth lower teeth arranged at the lower part of the piston;
the upper half part of the drill rod is positioned in the lower cylinder assembly, and the lower half part extends out from the lower part of the cylinder assembly.
The hydraulic cylinder further comprises a through bolt assembly, wherein the through bolt assembly is connected with the upper cylinder body, the middle cylinder body assembly and the lower cylinder body assembly.
The hydraulic motor is connected and rotated with a long-stroke spline groove arranged at the upper end of the piston through a long-stroke spline shaft extending out of the bottom of the hydraulic motor, and the stroke length is 3-4 times of the tooth depth of the dynamic sawtooth arranged at the lower part of the piston.
The lower end of the piston is provided with a pair of obliquely symmetrical steps, the upper end of the drill rod is provided with a straight boss, and the piston can be quickly abutted with the drill rod when rotating, so that the drill rod can be quickly driven to rotate.
The middle cylinder body assembly comprises a middle cylinder body, a hole for a piston to pass through is formed in the middle cylinder body, a rear bushing is arranged at the upper part in the hole, a reversing valve is arranged at the upper part of the middle cylinder body, and an oil inlet and outlet are formed in the side wall of the middle cylinder body.
The lower cylinder body assembly comprises a lower cylinder body, a hole for a piston to pass through is formed in the lower cylinder body, an inner sleeve is arranged at the upper part in the hole, and fixed static saw-tooth upper teeth are arranged on the hole wall below the inner sleeve; the bottom of the lower cylinder body is provided with an outer guide sleeve, the side wall of the lower cylinder body is provided with a drill rod pin and an outer sleeve pin, the drill rod pin is arranged at the position of a diameter-variable groove in the middle of the drill rod, the drill rod is convenient to rotate and prevented from falling off, and the outer sleeve pin is arranged at the position of the outer guide sleeve and used for fixing the outer guide sleeve.
The hydraulic motor drives the piston to rotate, the dynamic sawtooth lower teeth on the rotary piston and the fixed static sawtooth upper teeth in the lower cylinder are formed into a pair of meshing bodies, the dynamic sawtooth lower teeth rotate along with the piston, the rotary piston gradually rises to the upper part, when the lowest end of the dynamic sawtooth lower teeth is contacted with the highest end of the fixed static sawtooth upper teeth, the contact tooth surface is suddenly moved out, the pressure of the upper cavity of the rotary piston is increased, meanwhile, the pressure of the lower cavity of the piston is reduced, the piston is downwards pressed, the dynamic sawtooth lower teeth are instantly and completely meshed with the adjacent teeth of the fixed static sawtooth upper teeth, the rotary piston suddenly moves downwards by a sawtooth depth to realize one-time striking of the rotary drill rod, then the dynamic sawtooth lower teeth and the adjacent teeth of the static sawtooth upper teeth repeatedly move, the contact surface is suddenly moved out, and the rotary piston is pressed back by hydraulic power to realize one-time striking of the rotary drill rod.
The piston rotates for one circle to strike the drill rod for N times, and the piston continuously rotates to strike the drill rod continuously and intermittently.
The upper cylinder body, the piston, the middle cylinder body, the bushing and the piston ring form an upper piston cavity, the middle cylinder body assembly, the piston, the lower cylinder body assembly, the bushing and the piston ring form a lower piston cavity, and the upper piston cavity and the lower piston cavity are connected with an oil inlet and an oil outlet and a reversing valve which are arranged in the middle cylinder body assembly; positive pressurization is carried out on the upper cavity, micro positive pressure is carried out on the lower cavity of the piston, and the crusher rotates; the upper cavity is pressurized twice as much as the lower cavity of the piston, the lower cavity of the piston is slightly positive pressure, and the crusher is impacted and rotated, so that the cycle is performed; the oil inlet and outlet are matched with the reversing valve, so that the pressure of the upper cavity of the piston is changed, the up-and-down periodic movement of the piston is realized, and the movement frequency of the piston is consistent with the meshing frequency of the upper teeth of the fixed static saw teeth and the lower teeth of the dynamic saw teeth.
The drill rod head is in a shape of a straight line mouth, a trisection mouth or a cross mouth.
The beneficial effects are that: the full hydraulic rotary impact crusher of the invention takes hydraulic pressure as power to drive a piston to rotate and drive a drill rod to rotate, and the hydraulic pressure drives the piston to impact up and down at the same time, thereby realizing the breaking hammer of the continuous rotation and intermittent impact composite motion principle. According to the invention, through designing full hydraulic drive, the drill rod simultaneously carries out continuous rotation and intermittent striking, so that the crushing loading of complex stress is obtained, and the crushing efficiency and efficiency are effectively improved.
Drawings
FIG. 1 is a schematic exploded view of the structure of an all-hydraulic rotary impact crusher of the present invention;
FIG. 2a is a schematic view of the overall result of an all-hydraulic rotary impact crusher according to the present invention;
FIG. 2b is a cross-sectional view taken along the direction A-A of FIG. 2 a;
FIG. 2c is a side view of FIG. 2 a;
FIG. 3a is a schematic diagram of a hydraulic motor and piston drive connection;
FIG. 3b is a front view of FIG. 3 a;
FIG. 3c is a B-B cross-sectional view of FIG. 3B;
FIGS. 4a to 4c are schematic views of the engagement of dynamic and static teeth of a piston according to the present invention;
FIG. 5a is a schematic diagram of a piston and drill rod drive connection;
FIG. 5b is a front view of the drive connection of the piston to the drill rod;
FIG. 5C is a cross-sectional view taken along the direction C-C of FIG. 5 b;
FIG. 6a is a schematic view of a drill rod structure;
FIG. 6b is a side view of FIG. 6 a;
FIG. 6c is a top view of FIG. 6 a;
FIG. 6d is a bottom view of FIG. 6 a;
FIG. 7a is a schematic view of an anti-drop installation;
FIG. 7b is a front view of FIG. 7 a;
fig. 7c is a D-D cross-sectional view of fig. 7 b.
Detailed Description
The invention is further explained below with reference to the drawings.
The invention relates to a full-hydraulic rotary-impact crusher, which comprises a hydraulic system, a piston part and a drill rod part, wherein the hydraulic system drives the piston part to rotate and drives the drill rod part to rotate, the hydraulic system drives the piston part to impact up and down at the same time, and the full-hydraulic rotary-impact crusher realizes continuous rotation and intermittent impact compound motion.
As shown in fig. 1 to 7c, a full hydraulic rotary impact crusher of the present invention comprises a hydraulic motor 1, an upper cylinder 2, a through bolt assembly 3, a piston 4, a middle cylinder assembly 5, a lower cylinder assembly 6, a drill rod 7, wherein:
the upper cylinder body 2, the middle cylinder body assembly 5 and the lower cylinder body assembly 6 are sequentially connected from top to bottom;
the hydraulic motor 1 is positioned at the top of the upper cylinder body 2, the output end of the hydraulic motor 1 is connected with the upper end of the piston 4, and the hydraulic motor 1 drives the piston 4 to rotate and impact up and down;
the upper end of the piston 4 is positioned in the upper cylinder body 2, the middle part is positioned in the middle cylinder body assembly 5, the lower end is positioned in the lower cylinder body assembly 6, and the lower end of the piston 4 is mechanically connected with the drill rod 7 and drives the drill rod 7 to rotate; the lower part of the piston 4 is provided with a dynamic sawtooth lower tooth 4-1, a fixed static sawtooth upper tooth 6-6 is arranged in the lower cylinder body 6-1, and the fixed static sawtooth upper tooth 6-6 can be meshed with the dynamic sawtooth lower tooth 4-1 arranged at the lower part of the piston 4;
the upper half of the drill rod 7 is positioned in the lower cylinder assembly 6, and the lower half extends from below the cylinder assembly 6.
The through bolt assembly 3 connects the upper cylinder 2, the middle cylinder assembly 5 and the lower cylinder assembly 6.
The hydraulic motor 1 is connected and rotated with a long-stroke spline groove 4-2 arranged at the upper end of the piston 4 through a long-stroke spline shaft 1-1 extending from the bottom of the hydraulic motor, and the stroke length is 3-4 times of the tooth depth of a dynamic sawtooth lower tooth 4-1 arranged at the lower part of the piston 4.
The lower end of the piston 4 is provided with a pair of obliquely symmetrical steps 4-3, the upper end of the drill rod 7 is provided with a straight boss 7-1, and the piston 4 can be quickly abutted with the drill rod 7 when rotating so as to quickly drive the drill rod 7 to rotate.
The middle cylinder body assembly 5 comprises a middle cylinder body 5-1, a hole for the piston 4 to pass through is formed in the middle cylinder body 5-1, a rear bushing 5-2 is arranged at the upper part in the hole, a reversing valve 5-3 is arranged at the upper part of the middle cylinder body 5-1, and an oil inlet and outlet 5-4 is formed in the side wall of the middle cylinder body 5-1.
The lower cylinder assembly 6 comprises a lower cylinder 6-1, a hole for the piston 4 to pass through is formed in the lower cylinder 6-1, an inner sleeve 6-2 is arranged at the upper part in the hole, and fixed static saw-tooth upper teeth 6-6 are arranged on the hole wall below the inner sleeve 6-2; the bottom of the lower cylinder body 6-1 is provided with an outer guide sleeve 6-3, the side wall of the lower cylinder body 6-1 is provided with a drill rod pin 6-4 and an outer sleeve pin 6-5, the drill rod pin 6-4 is arranged at the middle part of the drill rod 7 at a reducing groove position, the drill rod is convenient to rotate and the drill rod 7 is prevented from falling off, and the outer sleeve pin 6-5 is arranged at the position of the outer guide sleeve 6-3 and is used for fixing the outer guide sleeve 6-3.
The head of the drill rod 7 is in a shape of a straight line mouth, a trisection mouth or a cross mouth.
The hydraulic motor 1 drives the piston 4 to rotate, the dynamic sawtooth lower teeth 4-1 on the rotary piston 4 and the fixed static sawtooth upper teeth 6-6 in the lower cylinder body 6-1 form a pair of meshing bodies, the dynamic sawtooth lower teeth 4-1 rotate along with the piston 4, the dynamic sawtooth lower teeth 4-1 gradually ascend upwards along the contact surface with the fixed static sawtooth upper teeth 6-6, when the lowest end of the dynamic sawtooth lower teeth 4-1 contacts the highest end of the fixed static sawtooth upper teeth 6-6, the contact tooth surface is suddenly moved out, the pressure of the upper cavity of the rotary piston is increased, the pressure of the lower cavity of the piston is reduced, the piston 4 is downwards pressed, the dynamic sawtooth lower teeth 4-1 are completely meshed with adjacent teeth of the fixed static sawtooth upper teeth 6 in an instant, the rotary piston 4 suddenly moves downwards by one sawtooth depth, one time of striking of the rotary drill rod 7 is realized, then the dynamic sawtooth lower teeth 4-1 and the adjacent teeth of the static sawtooth upper teeth 6-6 are repeatedly moved upwards, the contact surface is suddenly moved out again, the hydraulic power is used for pressing the rotary piston 4 back again, and one time of striking the rotary drill rod is realized.
The piston 4 has N sawtooth engaging tooth surfaces on the dynamic sawtooth lower teeth 4-1 and the fixed static sawtooth upper teeth 6-6, so that the piston 4 can strike the drill rod 7 for N times after rotating for one circle, and the piston 4 can continuously rotate to realize continuous intermittent striking of the piston 4 on the drill rod 7.
The upper cylinder body 2, the piston 4, the middle cylinder body 5, the bushing and the piston ring form a piston upper cavity, the middle cylinder body assembly 5, the piston 4, the lower cylinder body assembly 6, the bushing and the piston ring form a piston lower cavity, and the piston upper cavity and the piston lower cavity are connected with an oil inlet and outlet 5-4 and a reversing valve 5-3 which are arranged in the middle cylinder body assembly 5; positive pressurization is carried out on the upper cavity, micro positive pressure is carried out on the lower cavity of the piston, and the crusher rotates; the upper cavity is pressurized twice as much as the lower cavity of the piston, the lower cavity of the piston is slightly positive pressure, and the crusher is impacted and rotated, so that the cycle is performed; the oil inlet and outlet port 5-4 is matched with the reversing valve 5-3, so that the pressure of the upper cavity of the piston is changed, the up-and-down periodic movement of the piston 4 is realized, and the movement frequency of the piston is consistent with the meshing frequency of the fixed static saw tooth upper teeth 6-6 and the dynamic saw tooth lower teeth 4-1.
Thus, the combined motion of continuous rotation of the drill rod and intermittent striking of the piston is realized, and the crushing effect and efficiency are improved.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims (6)

1. A full hydraulic rotary impact crusher, characterized by: the full-hydraulic rotary-impact crusher comprises a hydraulic system, a piston part and a drill rod part, wherein the hydraulic system drives the piston part to rotate and drives the drill rod part to rotate, the hydraulic system drives the piston part to impact up and down at the same time, and the full-hydraulic rotary-impact crusher realizes continuous rotation and intermittent impact compound motion;
the hydraulic system is hydraulic motor (1), and the piston part includes piston (4), and the drill rod part includes drill rod (7), and hydraulic motor (1), piston (4), drill rod (7) set up in last cylinder body (2), well cylinder body assembly (5), lower cylinder body assembly (6) that top-down connects gradually, wherein:
the hydraulic motor (1) is positioned at the top of the upper cylinder body (2), the output end of the hydraulic motor (1) is connected with the upper end of the piston (4), and the hydraulic motor (1) drives the piston (4) to rotate and impact up and down;
the upper end of the piston (4) is positioned in the upper cylinder body (2), the middle part of the piston is positioned in the middle cylinder body assembly (5), the lower end of the piston is positioned in the lower cylinder body assembly (6), and the lower end of the piston (4) is mechanically connected with the drill rod (7) and drives the drill rod (7) to rotate; the lower part of the piston (4) is provided with dynamic sawtooth lower teeth (4-1), the lower cylinder body (6-1) is internally provided with fixed static sawtooth upper teeth (6-6), and the fixed static sawtooth upper teeth (6-6) can be meshed with the dynamic sawtooth lower teeth (4-1) arranged at the lower part of the piston (4);
the upper half part of the drill rod (7) is positioned in the lower cylinder body assembly (6), and the lower half part extends out from the lower part of the cylinder body assembly (6);
the upper cylinder body (2), the middle cylinder body assembly (5) and the lower cylinder body assembly (6) are connected through a through bolt assembly (3);
the hydraulic motor (1) drives the piston (4) to rotate, the dynamic sawtooth lower teeth (4-1) on the rotary piston (4) and the fixed static sawtooth upper teeth (6-6) in the lower cylinder body (6-1) form a pair of meshing bodies, the dynamic sawtooth lower teeth (4-1) rotate along with the piston (4), the dynamic sawtooth lower teeth (4-1) move along the contact surface with the fixed static sawtooth upper teeth (6-6), the rotary piston (4) gradually rises upwards, when the lowest end of the dynamic sawtooth lower teeth (4-1) is contacted with the highest end of the fixed static sawtooth upper teeth (6-6), the contact tooth surface is suddenly moved out, the pressure of the upper cavity of the rotary piston is increased, meanwhile, the pressure of the lower cavity of the piston is reduced, the piston (4-1) is instantaneously and completely meshed with the adjacent teeth of the fixed static sawtooth upper teeth (6-6), the rotary piston (4) suddenly moves downwards to a sawtooth depth, the rotary drill rod (7) is realized once, then the dynamic sawtooth lower teeth (4-1) are repeatedly contacted with the adjacent teeth (6-6), and the rotary rod is repeatedly driven to move the rotary rod (4) once again, and the rotary rod is suddenly driven to move the rotary rod (4) to be in contact with the next time;
n sawtooth engaging tooth surfaces are arranged on a circle of dynamic sawtooth lower teeth (4-1) and a circle of fixed static sawtooth upper teeth (6-6) of the piston (4), so that N times of striking are implemented on the drill rod (7) when the piston (4) rotates for one circle, and the piston (4) continuously rotates, so that the piston (4) continuously and intermittently strikes on the drill rod (7);
the upper cylinder body (2), the piston (4), the middle cylinder body (5), the bushing and the piston ring form an upper piston cavity, the middle cylinder body assembly (5), the piston (4), the lower cylinder body assembly (6), the bushing and the piston ring form a lower piston cavity, and the upper piston cavity and the lower piston cavity are connected with an oil inlet and outlet (5-4) and a reversing valve (5-3) which are arranged in the middle cylinder body assembly (5); positive pressurization is carried out on the upper cavity, micro positive pressure is carried out on the lower cavity of the piston, and the crusher rotates; the upper cavity is pressurized twice as much as the lower cavity of the piston, the lower cavity of the piston is slightly positive pressure, and the crusher is impacted and rotated, so that the cycle is performed; the oil inlet and outlet (5-4) is matched with the reversing valve (5-3) to change the pressure of the cavity on the piston, so that the up-and-down periodic movement of the piston (4) is realized, and the movement frequency of the piston is consistent with the meshing frequency of the upper teeth (6-6) of the fixed static saw teeth and the lower teeth (4-1) of the dynamic saw teeth.
2. The full hydraulic rotary impact crusher of claim 1, wherein: the hydraulic motor (1) rotates through a long-stroke spline shaft (1-1) extending out of the bottom of the hydraulic motor and a long-stroke spline groove (4-2) arranged at the upper end of the piston (4), and the stroke length is 3-4 times of the tooth depth of a dynamic sawtooth lower tooth (4-1) arranged at the lower part of the piston (4).
3. The full hydraulic rotary impact crusher of claim 1, wherein: the lower end of the piston (4) is provided with a pair of obliquely symmetrical steps (4-3), the upper end of the drill rod (7) is provided with a straight boss (7-1), and the piston (4) can be quickly abutted with the drill rod (7) when rotating, so that the drill rod (7) is quickly driven to rotate.
4. The full hydraulic rotary impact crusher of claim 1, wherein: the middle cylinder body assembly (5) comprises a middle cylinder body (5-1), a hole for the piston (4) to pass through is formed in the middle cylinder body (5-1), a rear bushing (5-2) is arranged at the upper part in the hole, a reversing valve (5-3) is arranged at the upper part of the middle cylinder body (5-1), and an oil inlet and outlet (5-4) is formed in the side wall of the middle cylinder body (5-1).
5. The full hydraulic rotary impact crusher of claim 1, wherein: the lower cylinder body assembly (6) comprises a lower cylinder body (6-1), a hole for the piston (4) to pass through is formed in the lower cylinder body (6-1), an inner sleeve (6-2) is arranged at the upper part in the hole, and fixed static saw tooth upper teeth (6-6) are arranged on the hole wall below the inner sleeve (6-2); the bottom of the lower cylinder body (6-1) is provided with an outer guide sleeve (6-3), the side wall of the lower cylinder body (6-1) is provided with a drill rod pin (6-4) and an outer sleeve pin (6-5), the drill rod pin (6-4) is arranged at the middle part of the drill rod (7) at a reducing groove position, the drill rod is convenient to rotate and the drill rod (7) is prevented from falling off, and the outer sleeve pin (6-5) is arranged at the position of the outer guide sleeve (6-3) and used for fixing the outer guide sleeve (6-3).
6. The full hydraulic rotary impact crusher of claim 1, wherein: the head of the drill rod (7) is in a shape of a straight mouth, a trisection mouth or a cross mouth.
CN202210347988.3A 2022-04-01 2022-04-01 Full hydraulic rotary impact crusher Active CN114934558B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210347988.3A CN114934558B (en) 2022-04-01 2022-04-01 Full hydraulic rotary impact crusher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210347988.3A CN114934558B (en) 2022-04-01 2022-04-01 Full hydraulic rotary impact crusher

Publications (2)

Publication Number Publication Date
CN114934558A CN114934558A (en) 2022-08-23
CN114934558B true CN114934558B (en) 2023-06-09

Family

ID=82863398

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210347988.3A Active CN114934558B (en) 2022-04-01 2022-04-01 Full hydraulic rotary impact crusher

Country Status (1)

Country Link
CN (1) CN114934558B (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05293773A (en) * 1992-04-20 1993-11-09 San Giken Kk Hammering machine
KR101630089B1 (en) * 2014-12-18 2016-06-13 윤영덕 Small boring apparatus using excavator
CN104532896B (en) * 2014-12-23 2016-09-21 南京工业职业技术学院 A kind of rotary liquid gas pressure mixing impact grinding hammer
CN204627412U (en) * 2015-02-10 2015-09-09 中国石油大学(华东) The lenticular vibratory impulse drilling tool of screw drive
CN105239929A (en) * 2015-11-24 2016-01-13 西南石油大学 Downhole tool for achieving efficient rock breaking through spin vibration
CN108625770B (en) * 2018-06-06 2024-03-22 福建亿钻机械有限公司 Rotatable impact crushing power head and application method thereof

Also Published As

Publication number Publication date
CN114934558A (en) 2022-08-23

Similar Documents

Publication Publication Date Title
CN108708672B (en) A kind of circumferential direction axial vacuum impact speed-raising tool
CN201695429U (en) Novel hydraulic-nitrogen joint action breaking hammer
CN202658644U (en) Integral type hydraulic breaking hammer
CN203701951U (en) Torsion impact generator
CN102400682A (en) High-efficiency blocking coal shovel
CN206245745U (en) Hand-held concrete dabbing machine
CN1995686A (en) Pulse-percussion drilling tool
CN111119726B (en) Annular cluster formula down-the-hole hammer
CN102678111B (en) High-efficiency blocking coal shovel
FI900009A0 (en) Hydraulic rock drilling machine and method for its operation
CN114934558B (en) Full hydraulic rotary impact crusher
CN202520220U (en) Top hydraulic impact drilling machine
CN100406651C (en) Hydraulic pile-ramming hammer
CN2653108Y (en) Novel airleg rock drill
CN102900355B (en) Quick-drill pneumatic hard rock drill
CN107322536B (en) Quick reciprocating impact rotary electric hammer
CN201016273Y (en) High-frequency vibration percussion drilling implement
KR102235286B1 (en) Hydraulic impact pile driver for excavator
CN214738044U (en) Pile hammer of multifunctional precast pile
CN101949260B (en) Auxiliary hammer mechanism of percussive hammer capable of releasing after storing energy and energy-storage type percussive hammer
CN208146065U (en) The crusher of ore reduction is carried out using wind energy
CN114622615A (en) Impact-rotary type crushing machine
CN210343218U (en) Hydraulic impactor
CN2601294Y (en) Impact viberating drilling appts.
CN109057706B (en) Eccentric hydraulic down-the-hole hammer

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant