CN110048361B - High-adaptability towing device for coal mining machine - Google Patents
High-adaptability towing device for coal mining machine Download PDFInfo
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- CN110048361B CN110048361B CN201910366785.7A CN201910366785A CN110048361B CN 110048361 B CN110048361 B CN 110048361B CN 201910366785 A CN201910366785 A CN 201910366785A CN 110048361 B CN110048361 B CN 110048361B
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- 239000003245 coal Substances 0.000 title claims abstract description 34
- 238000005065 mining Methods 0.000 title claims abstract description 32
- 238000010008 shearing Methods 0.000 claims abstract description 67
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 208000035874 Excoriation Diseases 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
- H02G11/006—Arrangements of electric cables or lines between relatively-movable parts using extensible carrier for the cable, e.g. self-coiling spring
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The invention relates to a high-adaptability coal mining machine towing device which comprises a main connecting body, a length adjusting plate, an auxiliary connecting body, a shearing swing mechanism, an adjusting ring, a swivel sleeve and a chain tractor, wherein the main connecting body, the length adjusting plate and the auxiliary connecting body are sequentially and fixedly connected from back to front, a groove is formed in the front end face of the auxiliary connecting body, the rear part of a shearing swing rod of the shearing swing mechanism is embedded into the groove and is fixedly connected with the auxiliary connecting body, the front part of the shearing swing rod is an optical axis extending horizontally from front to back, one or more adjusting rings and a swivel sleeve are sleeved on the front part of the shearing swing rod, the upper end of the chain tractor is hinged with the lower end of the swivel sleeve, a plurality of chain hanging grooves are formed in the front to back of the lower part of the chain tractor at intervals, and the rear part of the main connecting body is directly fixed on a coal mining machine body or is fixed on the coal mining machine body through one or more height adjusting seats. The invention can solve the adaptability problem of the towing device required when the coal mining machine is matched with scraper conveyors with different widths, supports with different heights and different types of cable clamping plates.
Description
Technical Field
The invention relates to a towing device of a coal mining machine, which can be suitable for scraper conveyors with different widths, supports with different height types and cable clamping plates with different forms, and belongs to the technical field of underground coal mining machinery.
Background
The towing device of the coal mining machine mainly drives a main cable and a water pipe of the coal mining machine to keep consistent with the movement of the coal mining machine by dragging the cable clamps, and the main cable and the water pipe are arranged in a plurality of cable clamping frames which are connected with each other, so that the cable and the water pipe are protected from being damaged by mutual friction with a cable groove. Suitable coal mining machine towing device is favorable for guaranteeing the high-efficiency operation of the coal mining machine, and the unbuckled coal mining machine towing device can cause the problems of blocking and wearing of a cable clamp in a cable groove, cable extrusion, over-bending core wire faults, skin wearing and the like.
In the three-machine matching process, the same coal mining machine is often matched with scraper conveyors of different manufacturers and different widths, and the corresponding towing devices of the coal mining machine are required to be provided with towing devices of different lengths in the length direction. The existing method is to customize and design a large number of towing devices with different lengths according to the matching requirement, the method not only seriously increases research and development repeatability labor, but also increases single-piece stock and cost, brings complexity to sales, and greatly restricts enterprise operation efficiency for the market state of the rapid increase of the current complete machine order.
Meanwhile, in order to adapt to coal beds with different mining thicknesses, the same coal mining machine needs to be matched with supports with different height types, under the condition that the height change of the coal mining machine body is limited, a method of heightening a towing device is often adopted, so that the wire inlet and dragging effects of a cable are improved, the mining efficiency is improved, but after the towing device is lifted, the cable bending still cannot be well solved due to limited space between a cable towing point and a wire inlet point, and finally the problems of cable skin abrasion, extrusion and the like still exist.
In addition, because different users have different usage habits, different types of cable clamp plates need to be matched, and therefore, the towing device also needs to be customized and designed again.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a towing device of a high-adaptability coal mining machine, which can solve the adaptability problem of the towing device required when the coal mining machine is matched with scraper conveyors with different widths, supports with different heights and types and cable clamping plates with different forms.
The main technical scheme of the invention is as follows:
the utility model provides a high adaptability coal-winning machine towrope device, includes main connector, length adjustment board, assistance connector, shearing swing mechanism, adjusting ring, gyration cover and chain drags, main connector, length adjustment board and assistance connector are by backward forward fixed connection in proper order, be equipped with the recess that the level extends on the preceding terminal surface of assistance connector, shearing swing mechanism's main part is shearing swing lever, shearing swing lever's rear portion is dull and stereotyped form, and the front portion is the optical axis of horizontal extension around, shearing swing lever's rear portion embedding in the recess, and with assistance connector fixed connection, one or more adjusting ring and the gyration cover is in on the optical axis, the overhanging end of optical axis is equipped with the axial stop device that is used for preventing adjusting ring and gyration cover from deviate from, the upper end that the chain drags with the lower extreme of gyration cover articulates, the articulated axis extends around the lower part that the chain drags the interval is equipped with many places chain hanging grooves around, the rear portion of main connector is fixed on the fuselage or is fixed on the fuselage through one or more height-adjusting seats.
The length adjusting plates are matched with N, the front and back lengths of the length adjusting plates are 1 time, 2 times, 3 times, … … and M times of the front and back total length of all the adjusting rings respectively, N, M are integers not smaller than 2, and only one length adjusting plate is connected between the main connecting body and the auxiliary connecting body in an installation state.
The front part of the auxiliary connector is preferably provided with an auxiliary pin hole and a plurality of auxiliary shearing holes, the rear part of the shearing swing rod is preferably provided with a rod pin hole and a plurality of rod shearing holes, the four holes are all through holes from top to bottom, the auxiliary pin hole and the rod pin hole are opposite from top to bottom in the fixed connection state of the shearing swing rod and the auxiliary connector, the auxiliary shearing holes and the rod shearing holes are in one-to-one correspondence, the two corresponding holes are mutually communicated, a swing pin is fixedly arranged in the auxiliary pin hole, and at least one pair of corresponding auxiliary shearing holes and rod shearing holes are simultaneously connected with a shearing pin through pin holes.
Under the fixed connection state of the shearing swing rod and the auxiliary connecting body, a sensor mounting groove is formed in the groove bottom surface of the groove and located at the rear of the auxiliary pin hole, a double-contact stroke position sensor is fixed in the sensor mounting groove, two contacts face the rear end surface of the shearing swing rod and respectively deviate to the left side and the right side of the axis of the auxiliary pin hole, and a gap is preferably reserved between the rear end surface of the shearing swing rod and the bottom surface of the groove on the auxiliary connecting body.
The beneficial effects of the invention are as follows:
according to the invention, all towing points in a horizontal distance quite long from the coal cutter body can be covered by configuring the length adjusting plates with different size gears and the adjusting rings with different numbers and positions; the cable clamping plates with various different structural forms can be adapted by arranging a plurality of different chain installation positions on the chain tractor, so that the unused habits and the use requirements of different users are met; the invention can be suitable for various working occasions with different height gears by not arranging or arranging different numbers of height-adjusting seats, and realizes good supporting, dragging and bending of cables in a limited space, so that the invention has high adaptability to scraper conveyors with different widths, brackets with different height types and cable clamping plates with different forms.
Compared with the method for only adjusting the number and the positions of the adjusting rings, the method has the advantages that the length adjusting plates are adopted to participate in combination adjustment, and the horizontal adjustment distance is obviously enlarged. When the device is used, when the large-scale adjustment requirement exists, only the length adjustment plate needs to be replaced, and other structures of the towing rope device such as the main connector, the auxiliary connector and the like do not need to be redesigned and manufactured, so that the investment is greatly saved.
By arranging pairs of auxiliary shearing holes and rod shearing holes in a larger size range in the width direction, a plurality of optional positions in a larger range are provided for mounting the shearing pin, and the adaptability of the towing device in the case that the towing point is applied to wide-range towing point adjustment or the inclination angle of a working surface is changed greatly to cause the large stress change of the towing point can be remarkably improved.
Through adopting towing protection device, in case shearing pin shear protection back shear swinging arms rotate to the relative auxiliary connection body after a certain angle just can spacing stop, can trigger the sensor signal, can protect the sensor not to damage again.
Drawings
FIG. 1 is a schematic general construction of an embodiment of the present invention (the adjustment ring is located entirely on the rear side of the swivel housing);
FIG. 2 is a top view of the main portion of FIG. 1;
FIG. 3 is an A-direction view of the main portion of FIG. 1;
FIG. 4a is a schematic general construction of another embodiment of the present invention (the adjusting ring is entirely on the front side of the swivel case);
FIG. 4b is a top view of FIG. 4 a;
FIG. 5 is a side-by-side comparison of the present invention with length adjustment plates of different lengths;
FIG. 6 is a schematic view of the structure of the invention when a height-adjusting seat is provided;
FIG. 7 is a schematic diagram showing the operation of the support and drag mechanism when two height-adjusting seats are arranged in the invention;
FIG. 8 is a schematic diagram showing the operation of the supporting and towing mechanism without the height-adjusting seat according to the present invention;
FIG. 9 is a cross-sectional view B-B of FIG. 2;
FIG. 10 is a schematic diagram of a streamer protection device in accordance with the invention.
Description of the drawings: 1. a main connecting body; 11. a main board; 112. a main plate screw groove; 113. a cable trough; 12. a cable supporting and dragging mechanism; a u-shaped adjusting screw; 1211. an upper thread section; 1212. a lower thread section; 1213. a bendable shaft section; 122. a fastening nut; u-shaped protective sleeve; 13. a cable fixing plate; 14. a kingpin; 15. a primary fastening screw;
2. a length adjusting plate; 22. adjusting plate screw grooves;
3. an auxiliary connector; 31. auxiliary shearing holes; 32. auxiliary pin holes; 33. an auxiliary limit surface;
4. an adjusting ring;
5. chain dragging; 51. an external hanging groove; 52. a middle hanging groove;
6. a height-adjusting seat;
7. a shear swing mechanism; 71. shearing a swinging rod; 711. an optical axis; 712. a rod shearing hole; 713. a rod pin hole; 714. a rod limiting surface; 72. a swing pin; 73. a shear pin; 74. a dual contact travel position sensor; 741. a contact; 75. a locking device;
81. a chain; 82. cable clamps (O-type); 82'. Cable clip (H-type); 83. a swivel sleeve;
9. a body; 92. and (3) a cable.
Detailed Description
The invention discloses a towing device (towing device for short) of a high-adaptability coal mining machine, which comprises a main connecting body 1, a length adjusting plate 2, an auxiliary connecting body 3, a shearing swing mechanism 7, an adjusting ring 4, a rotary sleeve 83 and a chain towing 5, wherein the main connecting body, the length adjusting plate and the auxiliary connecting body are sequentially and fixedly connected from back to front. The front end face of the auxiliary connector is provided with a groove which horizontally extends and penetrates through the left end and the right end, the main body of the shearing swing mechanism is a shearing swing rod 71, the rear part of the shearing swing rod is in a flat plate shape, the front part of the shearing swing rod is an optical axis 711 horizontally extending in the longitudinal direction, and the rear part of the shearing swing rod is embedded into the groove and fixedly connected with the auxiliary connector. One or more of the adjusting rings and the rotary sleeve are sleeved on the optical axis, and the overhanging end of the optical axis is provided with an axial limiting device for preventing the adjusting rings and the rotary sleeve from falling off. The position of the swivel sleeve substantially represents the position of the streamer point. The sequence of the swivel sleeve and the individual adjusting rings can be arranged freely as desired. By changing the number of the adjusting rings or the front-back sequence of the rotary sleeve and the adjusting rings, the rotary sleeve can be positioned at different positions in the front-back direction, so that the towing rope device can have towing rope points at a plurality of different positions in the front-back direction relative to the coal cutter body 9, and therefore, the towing rope device can be matched with scraper conveyors with different widths. The length of the length adjustment plate is typically greater than the front-to-back length of a single adjustment ring. For example, in fig. 1 and 4a, the front-rear length of a single adjusting ring is δ, and the total length of 6 adjusting rings is h=6δ. By changing the position of the adjustment ring, the streamer point of the streamer device can be changed in the front-rear direction within the length h, the changing step being an integer multiple of delta. The adjusting rings in fig. 1 are all located at the rear side of the swivel case, and the adjusting rings in fig. 4a are all located at the front side of the swivel case, compared with the two, under the condition that other structures are the same, the swivel case in fig. 1 is closer to the front, and can be matched with a wider scraper conveyor.
In the embodiment shown in the drawings, the axial limiting device adopts a locking device 75 for preventing the adjusting ring and the swivel sleeve from moving widely in the axial direction of the optical axis, and keeping the relative positional relationship of the adjusting ring and the swivel sleeve in the axial direction basically stable. The swivel sleeve and the adjusting ring have certain rotatability with the optical axis.
The upper end of the chain trailer is hinged with the lower end of the swivel sleeve, and the hinge axis extends horizontally front and back. The lower part of the chain mop is provided with a plurality of chain hanging grooves at intervals in the front-back direction, and the chain hanging grooves correspond to different chain installation positions. The user can choose the cable clamp plate of different structural types according to the use habit or the actual need and install the cable clamp plate on a proper chain installation position.
The rear part of the main connecting body is fixed directly to the shearer body 9 (see fig. 8) or is fixed to the shearer body 9 by means of a height-adjusting seat (see fig. 6) or a plurality of height-adjusting seats 6 (see fig. 7). When a plurality of height-adjusting seats are simultaneously installed, the plurality of height-adjusting seats are sequentially overlapped and placed in the height direction and are relatively fixed. By not arranging the height-adjusting seats or arranging different numbers of the height-adjusting seats, the towing device disclosed by the invention can adapt to brackets with different height types, and cables with different height gears can be kept in a good working state, so that the adaptability in the height direction is obviously improved.
The fixing modes between the rear part of the main connecting body and the coal mining machine body, between the rear part of the main connecting body and the heightening seats and between two adjacent heightening seats are not limited. In the embodiment shown in the figures, the main connection body is held horizontally stable relative to the fuselage or the riser by means of two main pins 14. The main connecting body 1 is prevented from being twisted, and is fastened by a plurality of main fastening screws 15, so that the main connecting body 1 is kept stable relative to the machine body or the height-adjusting seat 6 in the vertical direction, pulling and dragging are avoided, and therefore fixed connection is realized.
The main connector, the length adjusting plate and the auxiliary connector are fixed in pairs, and the connecting mode of each part of the main connector, the length adjusting plate and the auxiliary connector is not limited, and for example, the main connector, the length adjusting plate and the auxiliary connector can be welded, butted with front and rear end faces, positioned through pins, fastened and connected through screws in front and back or inserted in front and back and positioned through bolts in the vertical direction. The embodiment shown in the drawing is welding, has simple structure and strong site assembly operability, and the edge of the butt joint surface can be provided with a groove. In the second connection mode, the corresponding ends of the two parts connected can be positioned by two pins on one surface, and then are fastened by screws. In order to leave the necessary operating space. The butt end may be provided with a boss or recess to facilitate the installation of the pin and/or screw. In the third connection mode, the corresponding ends of the two parts connected can be made into concave-convex embedded structures in the front-back direction, once the two parts are spliced, the movement in the up-down direction and the rotation freedom degree in all directions are limited, the vertical bolt further limits the relative movement of the two parts in the horizontal plane, and usually, the pin is fixedly connected with at least one part, such as a screw connection, so as to avoid the vertical movement of the pin.
The plurality of chain hanging grooves comprise a middle hanging groove 52 and outer hanging grooves 51 positioned on the front side and the rear side of the middle hanging groove, and each chain hanging groove is a connecting position for providing a section of chain 81. Meanwhile, the outer hanging grooves on the two sides are used, the connection of the O-shaped cable clamp plates 82 can be realized, the connection of the H-shaped cable clamp plates 82' and the U-shaped cable clamp plates can be realized only by using the middle hanging groove, and therefore the chain tractor 5 can be suitable for the connection of different types of cable clamp plates. The chain drags and adopts the articulated of one direction or space multiple directions between chain and the cable splint, and the whole back that connects can carry out the swing in space well and crooked.
The high-adaptability coal mining machine towing device can further comprise a cable supporting and towing mechanism 12, the main part of the cable supporting and towing mechanism is a U-shaped adjusting screw 121, a U-shaped protecting sleeve 123 is sleeved at the U-shaped bottom of the U-shaped adjusting screw, and two ends above the U-shaped bottom of the U-shaped adjusting screw are a lower thread section 1212, a bendable shaft section 1213 and an upper thread section 1211 from bottom to top in sequence. The main part of the main connector is a main board 11, a main board screw groove 112 is arranged on the top surface of the front part of the main board, and through holes are arranged at two ends of the bottom of the main board screw groove. The top surface of the middle part of the length adjusting plate is provided with an adjusting plate screw groove 22, and both ends of the groove bottom of the adjusting plate screw groove are provided with through holes. In the installation state, the upper thread sections of the two end parts of the U-shaped adjusting screw rod pass through the two through holes in the main board screw groove or the adjusting board screw groove upwards and are locked by the fastening nuts 122, or alternatively, the lower thread sections of the two end parts of the U-shaped adjusting screw rod pass through the two through holes in the main board screw groove or the adjusting board screw groove upwards and are locked by the fastening nuts, in which case the upper thread sections can be buried in the corresponding main board screw groove or adjusting board screw groove by bending of the bendable shaft section (see fig. 2 and 4 b). The cable supporting and dragging mechanism is used for supporting and dragging cables clamped between the cable clamp and the wire inlet of the machine body to bend in a limited space. The cable branch towing mechanism can be connected to the main connector or the length adjusting plate to obtain cable branch towing points at different positions in the front-rear direction, and after the length of the towing device is adjusted, the positions of the cable branch towing points can be changed, so that better branch towing of the main cable of the machine body is facilitated. The U-shaped protective sleeve can be a soft rubber sleeve, and the cable is directly lapped on the place with the protective sleeve, so that friction and abrasion caused by direct contact between the cable and the metal surface of the U-shaped adjusting screw can be prevented.
Moreover, the cable prop-drag mechanism has the height-direction adjusting function, when no adjusting seat is arranged or only one adjusting seat is arranged, the lower thread section of the U-shaped adjusting screw rod can penetrate through the through hole in the main board screw groove or the adjusting board screw groove and is locked through the fastening nut 122, the downward stretching space of the U-shaped adjusting screw rod 121 is small, the prop-drag of the cable 92 inlet section of the lower position towing device is convenient, and the upper thread section can be buried in the main board screw groove or the adjusting board screw groove after the bendable shaft section is bent. When the adjusting seats are multiple, the upper thread section of the U-shaped adjusting screw rod can penetrate through the through hole in the main board screw groove or the adjusting plate screw groove and is locked through the fastening nut 122, the U-shaped adjusting screw rod 121 stretches out downwards to have large space, the supporting and dragging of the cable 92 inlet section after the towing device is lifted, at the moment, the lower thread section and the bendable shaft section are straightened and then suspended below the main board or the length adjusting plate, and the U-shaped bottom is used for supporting and dragging a main cable of the aircraft body.
Further, the streamer device may be configured with N length adjustment plates, and their front-to-back lengths L may be different. Only one of the length adjustment plates is connected between the main connector and the auxiliary connector in the mounted state. As the N length adjusting plates in the set, the front-rear lengths L thereof are preferably 1, 2, 3, … …, M times, N, M each being an integer of not less than 2, which are the total front-rear lengths of all the adjusting rings provided. Fig. 5 shows the front-to-rear position comparison effect of the streamer points of the streamer device when the length L of the length adjusting plates 2-1, 2-2, 2-3 with lengths of 1 xh, 2 xh, 3 xh, respectively, are installed and used, and for each length specification of the length adjusting plate, the front-to-rear position comparison effect of the streamer points when the swivel sleeve is located at the foremost and last two extreme positions compared with the adjusting ring is also illustrated.
Through the combined action of the length adjusting plate and the adjusting ring, continuous adjustment with the distance delta as an adjusting step length in the range of n multiplied by h in the front-back direction can be realized, and finally, adaptability to towing points at a plurality of different positions in the front-back direction is realized. By configuring the length adjusting plates with different size gears and adjusting the adjusting rings at different positions in the axial direction of the optical axis, different positions of the towing points of the towing device relative to the machine body can be covered. Compared with the method for only adjusting the number and the positions of the adjusting rings, the length adjusting plates participate in combination adjustment, so that the horizontal adjusting distance is obviously enlarged. When the device is used, when the large-scale adjustment requirement exists, only the length adjustment plate needs to be replaced, and other structures of the towing rope device such as the main connector, the auxiliary connector and the like do not need to be redesigned and manufactured, so that the investment is greatly saved.
As shown in fig. 9, the front part of the auxiliary connector is preferably provided with an auxiliary pin hole 32 and a plurality of auxiliary shearing holes 31, and the rear part of the shearing swing rod is correspondingly provided with a rod pin hole 713 and a plurality of rod shearing holes 712, which are all through holes extending through the upper and lower side walls of the groove. In the state that the shear swinging rod is fixedly connected with the auxiliary connector, the auxiliary pin hole and the rod pin hole are opposite vertically, the auxiliary shearing holes and the rod shearing holes are in one-to-one correspondence, the two corresponding holes are mutually communicated, a swinging pin 72 is fixedly installed in the auxiliary pin hole through screw fastening, and at least one pair of corresponding auxiliary shearing holes and rod shearing holes are simultaneously connected with a shearing pin 73 through pin holes. The swing sleeve 83 is positioned differently relative to the swing pin 72, the bending moment borne by the shear swing rod is different, and accordingly, the shear pin can be inserted in a proper position in the pairs of auxiliary shear holes 31 and the rod shear holes 712 at different positions. For example, the positions of the swivel sleeves are different in fig. 2 and 4b, and the mounting positions of the shear pins are also different. In addition, when the shearer is operating at different face inclinations, the bending moment of the cable acting on the shear swing bar 71 will also vary significantly due to the inclination affecting the cable's effect on the streamer device, in which case the shear pins may also be installed in selected appropriate positions in pairs of secondary shear holes 31 and bar shear holes 712. By arranging pairs of auxiliary shearing holes and rod shearing holes in a larger size range in the width direction, a plurality of optional positions in a larger range are provided for mounting the shearing pin, and the adaptability of the towing device in the case that the towing point is applied to wide-range towing point adjustment or the inclination angle of a working surface is changed greatly to cause the large stress change of the towing point can be remarkably improved. The installation position of the swing pin in the left-right direction is not limited.
In the state that the shear swing rod is fixedly connected with the auxiliary connector, a sensor mounting groove is formed in the groove bottom surface of the groove and positioned at the rear of the auxiliary pin hole, a double-contact stroke position sensor 74 is fixed in the sensor mounting groove, two contacts 741 face the rear end surface of the shear swing rod, the positions of the two contacts 741 face the left side and the right side of the axis of the auxiliary pin hole respectively, and further, the symmetrical centers of the two contacts are preferably opposite to the axis of the auxiliary pin hole. Protection of the shear swing bar 71 in both the left and right directions can be accommodated by two contacts. Once overload occurs, the shear pin is broken, the shear swing rod rotates around the swing pin, and no matter which direction rotates left and right, one contact can be touched, so that a sensor signal is triggered, alarm information is sent, the coal mining machine system is protected and stopped, and the problem that the excessive abnormal clamping force causes possible cable stress is solved. A gap is preferably reserved between the rear end face of the shear swing rod and the bottom face of the groove of the auxiliary connector, and the contact can be just contacted with the rear end face of the shear swing rod in a natural state or can be kept at a small interval. The front-back width of the gap is specifically determined according to the size of the rear end face of the shear swing rod, the maximum stroke of the contact and the like, so that the sensor signal cannot be triggered when overload protection is caused by overlarge, and the sensor is prevented from being damaged due to transitional compression of the contact when the contact is excessively small. The front and rear surfaces forming the gap may be the rod limiting surface 714 and the auxiliary limiting surface 33, respectively, the entire surface of the rear end surface of the shear swing rod and the bottom surface of the groove may be a partial surface on the surface near the swing pin, and for the case of the rear end surface of the shear swing rod shown in the drawing having a large width dimension, it is preferable to provide a corresponding limiting surface on the partial surface near the contact.
As shown in fig. 10, the pin, pin hole structure, gap and sensor arrangement at the junction between the secondary connector and the shear swing lever form the main part of the streamer protection device. Once the shearing pin 73 shears the protected shearing swing rod 71 to rotate to a certain angle relative to the auxiliary connector 3, the shearing swing rod can stop in a limiting mode, so that a sensor signal can be triggered, and the sensor can be protected from damage. In the embodiment of fig. 10, the position of the shear swing rod is biased to the left, the part, close to the right, of the rear end surface of the shear swing rod and the bottom surface of the groove can be provided with an inclined surface or a curved surface, so that the rear end surface and the bottom surface of the groove enclose a flared bell-mouth channel structure, on one hand, the shear swing rod can have a sufficient deflection angle during shear protection, and on the other hand, the coal dust blocking gap is avoided.
A side surface of the front portion of the main link body and the same side surface of the length adjustment plate may be each provided with a cable groove 113 and mounted with a cable fixing plate 13. The cable groove on the length adjusting plate is connected with the cable groove on the main connecting body in a front-back connection mode and is communicated with the cable groove on the main connecting body, the cable of the sensor passes through the cable groove and is limited by the cable fixing plate, and the cable of the sensor is protected.
According to the invention, by configuring the length adjusting plates with different size gears and the adjusting rings with different numbers and positions, a plurality of towing points in a horizontal distance quite long from the coal cutter body can be covered; the cable clamping plates with various different structural forms can be adapted by arranging a plurality of different chain installation positions on the chain tractor, so that the unused habits and the use requirements of different users are met; the invention can be suitable for various working occasions with different height gears by not arranging or arranging different numbers of height-adjusting seats, and realize good supporting, dragging and bending of cables in a limited space, so that the invention has high adaptability to scraper conveyors with different widths, brackets with different height types and cable clamping plates with different forms.
The front and rear directions referred to herein correspond to the left and right directions, respectively, in the view angle of fig. 1, and the left and right directions referred to herein are directions perpendicular to the paper surface of fig. 1.
Claims (7)
1. The utility model provides a high adaptability coal-winning machine towing installation which characterized in that: the coal mining machine comprises a main connecting body, a length adjusting plate, an auxiliary connecting body, a shearing swing mechanism, an adjusting ring, a rotary sleeve, a cable supporting and pulling mechanism and a chain pulling mechanism, wherein the main connecting body, the length adjusting plate and the auxiliary connecting body are sequentially and fixedly connected from back to front, a horizontally extending groove is formed in the front end face of the auxiliary connecting body, the main body of the shearing swing mechanism is a shearing swing rod, the rear part of the shearing swing rod is in a flat plate shape, the front part of the shearing swing rod is an optical axis horizontally extending from front to back, the rear part of the shearing swing rod is embedded in the groove and is fixedly connected with the auxiliary connecting body, one or more adjusting rings and the rotary sleeve are sleeved on the optical axis, an axial limiting device for preventing the adjusting ring and the rotary sleeve from falling off is arranged at the overhanging end of the optical axis, the upper end of the chain pulling mechanism is hinged with the lower end of the rotary sleeve, a plurality of chain hanging grooves are formed in the front to back of the lower part of the chain pulling mechanism at intervals, and the rear part of the main connecting body is directly fixed on a machine body or one or more machine bodies through one or more height-adjusting seats; the cable supporting and dragging mechanism comprises a U-shaped adjusting screw, a U-shaped protective sleeve is sleeved at the U-shaped bottom of the U-shaped adjusting screw, two end parts of the U-shaped adjusting screw are sequentially provided with a lower thread section, a bendable shaft section and an upper thread section from bottom to top, the main body of the main connecting body is a main board, the top surface of the front part of the main board is provided with a main board screw groove, through holes are formed in the two bottom ends of the main board screw groove, an adjusting board screw groove is formed in the top surface of the length adjusting board, through holes are formed in the two bottom ends of the adjusting board screw groove, the upper thread section of the two end parts of the U-shaped adjusting screw upwards penetrates through the two through holes in the main board screw groove or the adjusting board screw groove and is locked through a fastening nut, or the lower thread section of the two end parts of the U-shaped adjusting screw upwards penetrates through the two through holes in the main board screw groove or the adjusting board screw groove and is locked through fastening nuts, and the upper thread section is embedded in the corresponding main board screw groove or adjusting board screw groove by the bendable shaft section; the front part of the auxiliary connector is provided with an auxiliary pin hole and a plurality of auxiliary shearing holes, the rear part of the shearing swing rod is provided with a rod pin hole and a plurality of rod shearing holes, the four holes are all through holes, the auxiliary pin hole and the rod pin hole are opposite vertically in the fixed connection state of the shearing swing rod and the auxiliary connector, the auxiliary shearing holes and the rod shearing holes are in one-to-one correspondence, two corresponding holes are communicated with each other, a swing pin is fixedly arranged in the auxiliary pin hole, and at least one pair of corresponding auxiliary shearing holes and rod shearing holes are simultaneously connected with a shearing pin through pin holes; under the fixed connection state of the shearing swing rod and the auxiliary connecting body, a sensor mounting groove is formed in the groove bottom surface of the groove and located at the rear of the auxiliary pin hole, a double-contact stroke position sensor is fixed in the sensor mounting groove, two contacts face the rear end surface of the shearing swing rod, the positions of the two contacts face the left side and the right side of the axis of the auxiliary pin hole respectively, and a gap is reserved between the rear end surface of the shearing swing rod and the groove bottom surface of the groove on the auxiliary connecting body.
2. The high adaptability coal mining machine streamer apparatus as in claim 1, wherein: the rear part of the main connecting body is fixedly connected with the coal mining machine body, the rear part of the main connecting body is fixedly connected with the height-adjusting seat, and the two adjacent height-adjusting seats are fixedly connected through main pin positioning and main fastening screw fastening.
3. The high adaptability coal mining machine streamer apparatus as in claim 1, wherein: the main connector, the length adjusting plate and the auxiliary connector are fixedly connected in pairs in a connecting mode of welding, front and rear end face butt joint, positioning through pins, front and rear screw fastening connection or front and rear plug connection and positioning through pins in the vertical direction.
4. The high adaptability coal mining machine streamer apparatus as in claim 1, wherein: the chain hanging grooves comprise middle hanging grooves and outer hanging grooves positioned on the front side and the rear side of the middle hanging grooves, and each chain hanging groove provides a connecting position of a section of chain.
5. The high adaptability streamer apparatus of claim 1, 2, 3, or 4, wherein: the length adjusting plates are matched with N, the front and back lengths of the length adjusting plates are 1 time, 2 times, 3 times, … … and M times of the front and back total length of all the adjusting rings respectively, N, M are integers not smaller than 2, and only one length adjusting plate is connected between the main connecting body and the auxiliary connecting body in an installation state.
6. The high adaptability streamer apparatus of claim 1, 2, 3, or 4, wherein: the side of the front part of the main connecting body and the side of the same side of the length adjusting plate are respectively provided with a cable groove and are provided with a middle cable fixing plate.
7. The high adaptability coal mining machine streamer apparatus as in claim 5, wherein: the side of the front part of the main connecting body and the side of the same side of the length adjusting plate are respectively provided with a cable groove and are provided with a middle cable fixing plate.
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| CN201910366785.7A CN110048361B (en) | 2019-05-05 | 2019-05-05 | High-adaptability towing device for coal mining machine |
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| CN201910366785.7A CN110048361B (en) | 2019-05-05 | 2019-05-05 | High-adaptability towing device for coal mining machine |
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| CN110048361B true CN110048361B (en) | 2024-04-05 |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3941372A1 (en) * | 1989-12-15 | 1991-06-20 | Krupp Industrietech | Electrical supply cable for surface mining machine - has lead-in device at end of pivoted guide part leading to cable drum |
| JPH10309018A (en) * | 1997-04-28 | 1998-11-17 | Kanare Denki Kk | Cable stripper |
| US5967616A (en) * | 1995-04-26 | 1999-10-19 | Arch Technology Corporation | Electrical control system for apparatus and method for continuous underground mining |
| CN103334751A (en) * | 2013-06-13 | 2013-10-02 | 四川华蓥山广能集团嘉华机械有限责任公司 | Protection device for coal cutter cable |
| CN103661288A (en) * | 2012-08-29 | 2014-03-26 | 昝士录 | Bridge type hydraulic arch arm mechanical arm bus automatic washing machine |
| CN203783579U (en) * | 2014-04-28 | 2014-08-20 | 鸡西煤矿机械有限公司 | Towing device capable of adjusting position of towing chain |
| JP2014200158A (en) * | 2013-03-29 | 2014-10-23 | 宇部エクシモ株式会社 | Cable guide |
| CN104358570A (en) * | 2014-11-05 | 2015-02-18 | 天地上海采掘装备科技有限公司 | Cable towing device with cable tension protecting function |
| CN104810778A (en) * | 2014-11-10 | 2015-07-29 | 三一重型装备有限公司 | Cable dragging device and coal cutter |
| JP2015194206A (en) * | 2014-03-31 | 2015-11-05 | 宇部エクシモ株式会社 | cable guide |
| CN105649621A (en) * | 2016-03-30 | 2016-06-08 | 安徽理工大学 | Towing bracket for coal mining machine |
| CN205716015U (en) * | 2016-06-15 | 2016-11-23 | 西安煤矿机械有限公司 | A kind of electrical haulage shearer cable tray |
| CN108131137A (en) * | 2017-12-19 | 2018-06-08 | 江苏鸡煤机械制造有限公司 | A kind of coal mining system of enhanced flexible braking |
| CN208396713U (en) * | 2018-07-02 | 2019-01-18 | 贾鑫 | A kind of low seam mining machinery cable handler |
| CN208416535U (en) * | 2018-07-24 | 2019-01-22 | 王连营 | A kind of coal-cutting machine towline protecting apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8246009B2 (en) * | 2007-09-20 | 2012-08-21 | Greenlee Textron Inc. | Cable puller with pivot adjuster for converting between upward and downward cable pulling |
-
2019
- 2019-05-05 CN CN201910366785.7A patent/CN110048361B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3941372A1 (en) * | 1989-12-15 | 1991-06-20 | Krupp Industrietech | Electrical supply cable for surface mining machine - has lead-in device at end of pivoted guide part leading to cable drum |
| US5967616A (en) * | 1995-04-26 | 1999-10-19 | Arch Technology Corporation | Electrical control system for apparatus and method for continuous underground mining |
| JPH10309018A (en) * | 1997-04-28 | 1998-11-17 | Kanare Denki Kk | Cable stripper |
| CN103661288A (en) * | 2012-08-29 | 2014-03-26 | 昝士录 | Bridge type hydraulic arch arm mechanical arm bus automatic washing machine |
| JP2014200158A (en) * | 2013-03-29 | 2014-10-23 | 宇部エクシモ株式会社 | Cable guide |
| CN103334751A (en) * | 2013-06-13 | 2013-10-02 | 四川华蓥山广能集团嘉华机械有限责任公司 | Protection device for coal cutter cable |
| JP2015194206A (en) * | 2014-03-31 | 2015-11-05 | 宇部エクシモ株式会社 | cable guide |
| CN203783579U (en) * | 2014-04-28 | 2014-08-20 | 鸡西煤矿机械有限公司 | Towing device capable of adjusting position of towing chain |
| CN104358570A (en) * | 2014-11-05 | 2015-02-18 | 天地上海采掘装备科技有限公司 | Cable towing device with cable tension protecting function |
| CN104810778A (en) * | 2014-11-10 | 2015-07-29 | 三一重型装备有限公司 | Cable dragging device and coal cutter |
| CN105649621A (en) * | 2016-03-30 | 2016-06-08 | 安徽理工大学 | Towing bracket for coal mining machine |
| CN205716015U (en) * | 2016-06-15 | 2016-11-23 | 西安煤矿机械有限公司 | A kind of electrical haulage shearer cable tray |
| CN108131137A (en) * | 2017-12-19 | 2018-06-08 | 江苏鸡煤机械制造有限公司 | A kind of coal mining system of enhanced flexible braking |
| CN208396713U (en) * | 2018-07-02 | 2019-01-18 | 贾鑫 | A kind of low seam mining machinery cable handler |
| CN208416535U (en) * | 2018-07-24 | 2019-01-22 | 王连营 | A kind of coal-cutting machine towline protecting apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 电力电缆中间接头保护支架的研制与应用;徐欣;严伟佳;倪卫良;;电世界;20151205(第12期);14-15 * |
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