CN110029992B - Light machine tail buffer device for coal mine fully-mechanized excavating machine - Google Patents
Light machine tail buffer device for coal mine fully-mechanized excavating machine Download PDFInfo
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- CN110029992B CN110029992B CN201910224620.6A CN201910224620A CN110029992B CN 110029992 B CN110029992 B CN 110029992B CN 201910224620 A CN201910224620 A CN 201910224620A CN 110029992 B CN110029992 B CN 110029992B
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- partition plate
- fixedly connected
- sides
- carrier roller
- coal mine
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
Abstract
The invention discloses a light machine tail buffer device for a coal mine comprehensive digging machine, which comprises a base, wherein two sides of the upper end of the base are fixedly connected with clamps, the upper end of each clamp is fixedly connected with an I-shaped steel runway, the upper surface of each I-shaped steel runway is provided with a buffer mechanism, the input end of each buffer mechanism is connected with a carrier roller frame, the top end of each carrier roller frame is fixedly connected with a hanging pulley, steel wire ropes are wound on the hanging pulleys on the two sides, and at least one carrier roller is connected between the hanging pulleys on the two sides through the common steel wire rope. The invention reduces the hauling difficulty and ensures the construction safety. The fully-mechanized roadheader has the advantages that belt delay and the hauling buffer tail are frequent, when the buffer tail is pulled, the fully-mechanized roadheader is connected with the buffer tail through the chain or the anchor rod, the risk of broken chain and broken anchor rod to injure people is caused due to heavy weight, the current situation can be effectively improved through the light buffer tail, the construction safety is guaranteed, and the hauling difficulty is reduced.
Description
Technical Field
The invention relates to the technical field of rear transportation supporting facilities of a coal mine fully-mechanized excavating machine, in particular to a light machine tail buffer device for the coal mine fully-mechanized excavating machine.
Background
In the process of excavating coal mine roadways in China, the most common technology is comprehensive mechanized excavating technology, and the technology mainly comprises a plurality of parts, such as a cantilever type tunneling machine, a reversed loader, a conveyor and the like, and the whole excavating activity is completed through mutual matching of the parts. The existing coal mine tunneling roadway is mostly constructed by adopting a fully-mechanized tunneling machine, the front end of the fully-mechanized tunneling machine is frequently extended with a belt, and the weight of the buffer tail of the fully-mechanized tunneling machine is large, so that the light buffer tail is considered and researched to solve the problems that the buffer tail is difficult to pull and transport, the labor hour is large, and the risk of injury to people due to broken ropes exists, the weight of the buffer tail is reduced, the pulling and transporting difficulty is reduced, the construction efficiency is improved, and the construction safety is ensured.
Disclosure of Invention
The invention aims to solve the problems and provides a light tail buffer device for a coal mine fully-mechanized excavating machine.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a light-duty tail buffer for machine is digged to colliery combine, includes the base, the equal fixedly connected with clamp in upper end both sides of base, the upper end fixedly connected with I-steel runway of clamp, the last surface mounting of I-steel runway has buffer gear, buffer gear's input is connected with the bearing roller frame, the pulley is hung to the top fixedly connected with of bearing roller frame, both sides hang all around being equipped with wire rope on the pulley, both sides hang common wire rope between the pulley and be connected with at least one bearing roller.
Preferably, the base is made of a steel pipe.
Preferably, the number of the carrier rollers is three.
Preferably, the idler consists of an outer idler and an inner idler which are coaxial.
Preferably, the outer carrier roller comprises an outer cylinder and an inner partition plate;
the outer barrel is of a structure with two communicated sides, the inner partition plate is radially arranged in the middle of the outer barrel, the outer diameter of the inner partition plate is equal to the inner diameter of the outer barrel, and the inner partition plate and the outer barrel are integrally formed.
Preferably, the inner carrier roller comprises an inner cylinder, an outer partition plate, a connector, a cavity and a mandrel;
the number of the inner cylinders is two, cavities are formed in the two inner cylinders, and the two inner cylinders are symmetrically arranged by taking the inner partition plates as centers;
outer partition plates are radially arranged at positions, close to the inner part by 5-15cm, of ports on the two sides of the inner cylinder, the outer diameter of each outer partition plate is equal to the inner diameter of the outer cylinder, and the outer partition plates and the outer cylinders are integrally formed;
the spindle is axially arranged in the inner cylinder, penetrates through the outer partition plate and the inner partition plate and is in interference fit with the outer partition plate and the inner partition plate;
the part of the mandrel, which is in contact with the outer partition plate and the inner partition plate, is of a solid structure and is defined as a connector;
the two sides of the mandrel are both axially and fixedly connected with fixing pins, and the fixing pins are fixedly connected with steel wire ropes.
Preferably, a circle of bulges are radially arranged on the inner wall of the outer cylinder close to the port, the outer cylinder and the bulges are integrally formed, and a circle of cushion blocks matched with the bulges are radially glued on the outer wall of the inner cylinder; the cross section of the protrusion is semicircular, and a semicircular groove matched with the protrusion for use is formed in the cushion block.
Preferably, at least one vibration absorber is radially arranged in the cavity;
the elastic metal is a spring, and two sides of the elastic metal are fixedly connected to the outer partition plate and the inner partition plate through connecting blocks respectively.
Preferably, the buffer mechanism comprises a support arm, a limit block, a rotary joint, a connecting rod, a sliding chute, a sliding block, a push rod, a return spring and a stop block;
the supporting roller frame is characterized in that connecting rods are rotatably connected to two sides of the bottom end of the supporting roller frame through rotary joints, one ends, far away from the rotary joints, of the connecting rods are rotatably connected with sliding blocks and ejector rods, sliding grooves are formed in the top ends of the I-shaped steel runways, the sliding blocks are slidably connected to the sliding grooves, the ejector rods penetrate through upper end extending portions of the I-shaped steel runways and are fixedly connected with stop blocks, and the ejector rods are fixedly connected with reset springs between the I-shaped steel runways and the.
Preferably, the upper end of the carrier roller frame is fixedly connected with at least one supporting arm which is obliquely arranged, the supporting arm is far away from one end of the carrier roller frame and is fixedly connected with a limiting block, and the bottom end of the carrier roller frame is provided with a limiting groove for accommodating the limiting block to vertically slide in the limiting groove.
Compared with the prior art, the invention has the following advantages:
1. the pulling difficulty is reduced, and the construction safety is ensured. The fully-mechanized roadheader has the advantages that belt delay and the hauling buffer tail are frequent, when the buffer tail is pulled, the fully-mechanized roadheader is connected with the buffer tail through the chain or the anchor rod, the risk of broken chain and broken anchor rod to injure people is caused due to heavy weight, the current situation can be effectively improved through the light buffer tail, the construction safety is guaranteed, and the hauling difficulty is reduced.
2. The construction efficiency is improved. The light buffer tail reduces weight by 3.3 tons compared with the original tail, the difficulty of pulling and transporting the buffer tail along a belt is reduced, the construction efficiency is improved, and the light buffer tail is covered and applied in the underground after passing the test.
Drawings
Fig. 1 is a schematic structural diagram of a light machine tail buffer device for a coal mine fully-mechanized excavating machine, which is provided by the invention;
fig. 2 is a sectional view of a buffering mechanism of a light machine tail buffering device for a coal mine fully-mechanized excavating machine, which is provided by the invention;
FIG. 3 is a partial cross-sectional view of an outer cylinder of a light-weight machine tail buffer device for a coal mine fully-mechanized excavating machine, which is provided by the invention;
FIG. 4 is a partial cross-sectional view of an inner cylinder of a light-duty machine tail buffer device for a coal mine fully-mechanized excavating machine, which is provided by the invention;
fig. 5 is a partial sectional view of a vibration absorbing member of a light-weight tail buffer device for a coal mine fully-mechanized excavating machine.
In the figure: the device comprises a base 1, a hoop 2, an I-steel runway 3, a buffer mechanism 4, a support arm 41, a limiting block 42, a rotary joint 43, a connecting rod 44, a sliding chute 45, a sliding block 46, a mandril 47, a return spring 48, a stop block 49, a roller frame 5, a steel wire rope 6, a carrier roller 7, an outer carrier roller 71, an outer cylinder 711, an inner partition 712, an inner carrier roller 72, an inner cylinder 721, an outer partition 722, a 723 mandrel, a 724 connector, a 725 cavity, a vibration absorbing part 73, elastic metal 731, a 732 connecting block, a fixing pin 8, a protrusion 9, a cushion block 10 and a limiting groove 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1 to 2, a light machine tail buffer device for a coal mine fully-mechanized excavating machine comprises a base 1, wherein two sides of the upper end of the base 1 are fixedly connected with clamps 2, the upper end of each clamp 2 is fixedly connected with an I-shaped steel runway 3, and a buffer mechanism 4 is arranged on the upper surface of each I-shaped steel runway 3.
The buffer mechanism 4 comprises a support arm 41, a limit block 42, a rotary joint 43, a connecting rod 44, a sliding chute 45, a sliding block 46, a push rod 47, a return spring 48 and a stop block 49, and the specific connection mode is as follows:
the two sides of the bottom end of the roller frame 5 are rotatably connected with connecting rods 44 through rotary joints 43, one ends, far away from the rotary joints 43, of the connecting rods 44 are rotatably connected with sliding blocks 46 and ejector rods 47, the top end of the I-shaped steel track 3 is provided with a sliding groove 45, the sliding blocks 46 are slidably connected onto the sliding groove 45, the ejector rods 47 penetrate through the upper end extending part of the I-shaped steel track 3 and are fixedly connected with stop blocks 49, and the ejector rods 47 are located between the extending part of the I-shaped steel track 3 and the stop blocks 49 and are.
The input end of the buffer mechanism 4 is connected with a roller frame 5, the top end of the roller frame 5 is fixedly connected with a hanging pulley, steel wire ropes 6 are wound on the hanging pulleys on two sides, and at least one carrier roller 7 is connected between the hanging pulleys on two sides through a common steel wire rope.
Preferably, the number of bearing rollers 7 is three, and base 1 adopts the steel pipe, and the weight of base can be reduced by a wide margin to the setting of steel pipe.
The carrier roller 7 is composed of an outer carrier roller 71 and an inner carrier roller 72 which are coaxial.
Referring to fig. 3, specifically, the outer idler 71 includes an outer cylinder 711, an inner partition 712;
the outer cylinder 711 has a structure with two communicated sides, the inner partition 712 is radially arranged in the middle of the outer cylinder 711, the outer diameter of the inner partition 712 is equal to the inner diameter of the outer cylinder 711, and the inner partition and the outer cylinder 711 are integrally formed.
Referring to fig. 4, specifically, the inner carrier roller 72 includes an inner cylinder 721, an outer partition 722, a connector 724, a cavity 725, and a mandrel 723;
the number of the inner cylinders 721 is two, cavities 725 are formed in the two inner cylinders 721, and the two inner cylinders 721 are symmetrically arranged by taking the inner partition 712 as a center; the inner 5-15cm part of the port of the two sides of the inner barrel 721 is radially provided with an outer clapboard 722, the outer diameter of the outer clapboard 722 is equal to the inner diameter of the outer barrel 711, and the outer clapboard 722 and the outer barrel 711 are integrally formed;
the mandrel 723 is axially arranged in the inner cylinder, and the mandrel 723 passes through the outer partition 722 and the inner partition 712 and is in interference fit with the outer partition;
the portion of the mandrel 723 in contact with the outer barrier 722 and the inner barrier 712 is of solid construction and is defined as a connector 724, the connector 724 serving to carry greater pressure and shock and prevent excessive deformation.
Both sides of the mandrel 723 are axially and fixedly connected with fixing pins 8, and the fixing pins 8 are fixedly connected with steel wire ropes 6. The fixing pin 8 should be integrally formed with an ear hole for installation of the steel wire rope 6.
Furthermore, a circle of bulges 9 are radially arranged on the inner wall of the outer cylinder 711 close to the port, the outer cylinder 711 and the bulges 9 are integrally formed, and a circle of cushion blocks 10 matched with the bulges 9 are radially glued on the outer wall of the inner cylinder 721; the cross section of the bulge 9 is semicircular, and a semicircular groove matched with the bulge 9 for use is formed in the cushion block 10.
According to experience, the base of the buffer tail of the original fully-mechanized excavating machine is processed by steel plates, so that the base is heavy, and the friction force between the base and a bottom plate is large during the pulling transportation period, so that the pulling transportation of the buffer tail is difficult; after transformation, the steel plate is removed and replaced by two steel pipes, so that the weight is greatly reduced, and meanwhile, the friction force between the steel plate and the bottom plate during pulling is reduced.
Buffer tail base is 6, and 1200KG total, every 200KG, the every weight of steel pipe 4KG total 48KG, lightens weight 1.1 tons.
Through transformation, the weight of the buffer tail is reduced by 3.3 tons, the difficulty of the fully-mechanized excavating machine for hauling the buffer tail is greatly reduced, the construction efficiency is improved, and meanwhile, the construction safety of the hauling machine tail is guaranteed.
Example two
In the second embodiment, on the basis of the first embodiment, the vibration absorbing member 73 is further arranged, and the vibration absorbing performance of the carrier roller 7 can be greatly improved by arranging the vibration absorbing member 73.
At least one vibration absorbing member 73 is radially disposed within the cavity 725;
the vibration absorbing elastic metal 731 is a spring, and two sides of the elastic metal 731 are fixedly connected to the outer partition 722 and the inner partition 712 through connection blocks 732, respectively.
When the carrier roller 7 vibrates under the action of external force, the carrier roller 7 drives the vibration absorbing piece 73 to vibrate in a forced mode, when the external force is gradually increased, until the vibration frequency of the carrier roller 7 is the same as the natural frequency of the elastic metal 731, the elastic metal 731 resonates, most vibration energy of the carrier roller 7 is absorbed in the resonance, the vibration energy is converted into heat energy and sound energy to be consumed, and the process greatly reduces the vibration of the carrier roller 7 and improves the vibration resistance of the carrier roller.
Claims (7)
1. A light machine tail buffer device for a coal mine fully-mechanized excavating machine comprises a base (1) and is characterized in that two sides of the upper end of the base (1) are fixedly connected with clamps (2), the upper end of each clamp (2) is fixedly connected with an I-shaped steel runway (3), a buffer mechanism (4) is installed on the upper surface of each I-shaped steel runway (3), the input end of each buffer mechanism (4) is connected with a carrier roller frame (5), the top end of each carrier roller frame (5) is fixedly connected with hanging pulleys, steel wire ropes (6) are wound on the hanging pulleys on two sides, at least one carrier roller (7) is connected to the common steel wire rope between the hanging pulleys on two sides, and each carrier roller (7) is composed of an outer carrier roller (71) and an inner carrier roller (72) in a coaxial mode; wherein:
the outer carrier roller (71) comprises an outer cylinder (711) and an inner partition plate (712); the outer cylinder (711) is of a structure with two communicated sides, the inner partition plate (712) is radially arranged in the middle of the outer cylinder (711), the outer diameter of the inner partition plate (712) is equal to the inner diameter of the outer cylinder (711), and the inner partition plate and the outer cylinder are integrally formed;
the inner carrier roller (72) comprises an inner cylinder (721), an outer partition plate (722), a connector (724), a cavity (725) and a mandrel (723); the number of the inner cylinders (721) is two, cavities (725) are formed in the two inner cylinders (721), and the two inner cylinders (721) are arranged in a central symmetry mode by taking the inner partition plate (712) as a center; outer partition plates (722) are radially arranged at positions, close to the inner part by 5-15cm, of ports on the two sides of the inner barrel (721), the outer diameter of each outer partition plate (722) is equal to the inner diameter of the outer barrel (711), and the outer partition plates and the outer barrel are integrally formed; the mandrel (723) is axially arranged in the inner cylinder, and the mandrel (723) penetrates through the outer partition plate (722) and the inner partition plate (712) and is in interference fit with the outer partition plate and the inner partition plate; the part of the mandrel (723) in contact with the outer partition plate (722) and the inner partition plate (712) is of a solid structure and is defined as a connecting head (724); both sides of mandrel (723) are axially fixedly connected with fixing pins (8), and fixing pins (8) are fixedly connected with steel wire ropes (6).
2. A light machine tail buffer device for a coal mine fully-mechanized excavating machine according to claim 1, characterized in that the base (1) is made of steel pipe.
3. A light-weight machine tail buffer device for a coal mine fully-mechanized roadheader as claimed in claim 1, characterized in that the number of the carrier rollers (7) is three.
4. A light machine tail buffer device for a coal mine fully-mechanized excavating machine according to claim 3, characterized in that a circle of bulges (9) are radially arranged on the inner wall of the outer cylinder (711) near the port, the outer cylinder (711) and the bulges (9) are integrally formed, and a circle of cushion blocks (10) matched with the bulges (9) are radially glued on the outer wall of the inner cylinder (721); the cross section of the protrusion (9) is semicircular, and a semicircular groove matched with the protrusion (9) for use is formed in the cushion block (10).
5. A light-weight machine tail buffer device for a coal mine fully-mechanized roadheader as claimed in claim 3, characterized in that at least one vibration absorbing member (73) is radially provided in said cavity (725);
the vibration absorbing piece (73) is made of elastic metal (731), the elastic metal (731) is made of a spring, and two sides of the elastic metal (731) are fixedly connected to the outer partition plate (722) and the inner partition plate (712) through connecting blocks (732) respectively.
6. The light machine tail buffer device for the coal mine fully-mechanized roadheader as claimed in claim 1, wherein the buffer mechanism (4) comprises a supporting arm (41), a limiting block (42), a rotary joint (43), a connecting rod (44), a sliding chute (45), a sliding block (46), a top rod (47), a return spring (48) and a stop block (49);
the supporting roller frame is characterized in that connecting rods (44) are rotatably connected to two sides of the bottom end of the supporting roller frame (5) through rotary joints (43), one ends, far away from the rotary joints (43), of the connecting rods (44) are rotatably connected with sliding blocks (46) and ejector rods (47), sliding grooves (45) are formed in the top ends of the I-shaped steel runways (3), the sliding blocks (46) are slidably connected onto the sliding grooves (45), the ejector rods (47) penetrate through upper end extending portions of the I-shaped steel runways (3) and are fixedly connected with stop blocks (49), and the ejector rods (47) are fixedly connected with reset springs (48) between the extending portions of the I-shaped steel runways (3) and the stop.
7. The light machine tail buffer device for the coal mine fully-mechanized excavating machine is characterized in that at least one obliquely arranged supporting arm (41) is fixedly connected to the upper end of the roller frame (5), a limiting block (42) is fixedly connected to one end, away from the roller frame (5), of the supporting arm (41), and a limiting groove (11) for accommodating the limiting block (42) to vertically slide in is formed in the bottom end of the roller frame (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910224620.6A CN110029992B (en) | 2019-03-23 | 2019-03-23 | Light machine tail buffer device for coal mine fully-mechanized excavating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910224620.6A CN110029992B (en) | 2019-03-23 | 2019-03-23 | Light machine tail buffer device for coal mine fully-mechanized excavating machine |
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| Publication Number | Publication Date |
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| CN110029992A CN110029992A (en) | 2019-07-19 |
| CN110029992B true CN110029992B (en) | 2021-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910224620.6A Active CN110029992B (en) | 2019-03-23 | 2019-03-23 | Light machine tail buffer device for coal mine fully-mechanized excavating machine |
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| CN110029992A (en) | 2019-07-19 |
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