CN201738922U

CN201738922U - Floor-based shearer

Info

Publication number: CN201738922U
Application number: CN201020274832XU
Authority: CN
Inventors: 李明宝; 林成光; 刘向东
Original assignee: CHONGQING YONGRONG MINING CO LTD
Current assignee: CHONGQING YONGRONG MINING CO LTD
Priority date: 2010-07-27
Filing date: 2010-07-27
Publication date: 2011-02-09
Anticipated expiration: 2020-07-27

Abstract

The utility model discloses a floor-based shearer, which comprises a coal-loading part (1), a cutting part (2), a motor part (3) and a drawing part (4) which are sequentially connected, wherein a roller (50) for cutting is arranged at the cutting part (1); and the power of the motor (3) is transmitted to the cutting part (2) and the drawing part (4) by a motor arranged inside the motor part. With the technical scheme, the utility model has the advantages of reasonable structural design and high reliability of the machine as well as effectively-reduced height for the machine body and can be used for mining thin coal layers of 0.5-0.75 meter; and meanwhile, a chain tractor body is used for recovering and the entire machine can stably run and has low fault rate.

Description

A kind of off pan shearer

Technical field

The utility model relates to a kind of coal-winning machine, particularly a kind of off pan shearer.

Background technology

The reserves of China's ultra-thin coal seam are abundant, account for more than 20% of seam mining amount, but be subjected to the influence of factors such as work plane condition, space be narrow and small, ultra-thin coal seam belongs to and is difficult to mined bed, in order to exploit to ultra-thin coal seam, many enterprises development and Design can carry out the coal-winning machine of ultra-thin coal seam exploitation, but owing to be subjected to the restriction of technical condition, the thickness of a lot of coal-winning machine working seams is still pessimistic.

The utility model patent that name is called " climb the base plate chain hauled shearer " is disclosed in CN201284650Y, it comprises body and draw-gear, body is provided with backing board, brace summer, electric installation, hydraulic means and cutting units, draw-gear is an external, be located at a side of engine body exterior, it comprises a left side, right drive unit and chain, drive unit connects with the conveyer sidepiece is fastening by link, drive unit is provided with sprocket wheel, a left side, connect by chain between the sprocket wheel on the right drive unit, the chain two ends are connected with body, body is the lordosis formula, the piston shoes of body one side and conveyer ramp plate overlap joint, opposite side are by connector and conveyor guide pipe overlap joint, and the bottom bracket bottom of cutting units one side is provided with brace summer.Though this mechanism can carry out the exploitation work of ultra-thin coal seam, the coal seam thickness that it can be exploited is between 0.85 meter to 1.3 meters, can't exploit for the coal seam that is lower than 0.85 meter.

The utility model content

The purpose of this utility model just provides a kind of off pan shearer that is used for gentle dip longwell stope, uses it can carry out 0.5 meter～0.75 meter ultra-thin coal seam exploitation work.

The purpose of this utility model is to realize by such technical scheme, a kind of off pan shearer, described coal-winning machine comprises the portion of coalingging, cutting units, motor section and the tractive unit that connects successively, cutting units is provided with the cylinder that is used for coal cutting, and the power of described motor section is given cutting units and tractive unit by the motor that is arranged in the motor section with transmission of power.

Wherein, the machinery setting of described cutting units is such: described cutting units comprises casing, is arranged on a shaft assembly, two shaft assemblies, three shaft assemblies, four shaft assemblies and five shaft assemblies in the casing, what described two shaft assemblies, three shaft assemblies and four shaft assemblies were all vertical and parallel is arranged in the casing, is arranged on two shaft assembly tops in the vertical correspondence of a described shaft assembly; One end of a described shaft assembly is provided with elevating arc A, the other end is provided with shaft coupling, described elevating arc A and the elevating arc B engagement that is arranged on two shaft assembly tops, describedly be provided with gear A in two shaft assembly bottoms, described gear A and the gear B engagement that is arranged on three shaft assembly bottoms, the described gear C that in the middle part of two shaft assemblies, is provided with, described gear C and the gear D engagement that is arranged on three shaft assembly tops, described two shaft assemblies are provided with gear E, described gear E is positioned at the gear C top, and described gear E is by spline housing and gear C engagement; Describedly be respectively arranged with gear F and gear G at four shaft assemblies middle parts and bottom, described gear F and gear E mesh, and the top of described four shaft assemblies passes casing, and this end is provided with cylinder; The vertical correspondence of described five shaft assemblies is arranged on four shaft assembly bottoms, and five shaft assemblies, one end is provided with gear H, described gear G and gear H engagement.

In the utility model, the described portion of coalingging all adopts the one-level chain drive.

The described portion of coalingging comprises middle plate, and middle plate is provided with scraper chain, and described scraper chain drives by drive unit.

Described drive unit comprises the power transmission shaft that is arranged on the middle plate, one end of power transmission shaft is provided with main load cover and overlaps from load, described main load cover is connected with power transmission shaft by spline, described main load cover is connected with overlapping from load by safety plug, describedly be connected with sprocket shaft on being arranged on power transmission shaft by flat key from load cover, described sprocket shaft is provided with four corner sprockets, and described scraper chain is arranged on four corner sprockets.

Described tractive unit comprises casing, in casing, be provided with independently mechanical cavity and hydraulic chamber respectively, be provided with in the described mechanical cavity and be used to drive the straight-line machine driven system of coal-winning machine, in the described hydraulic chamber Hydraulic Power Transmission System is set, do like this is in order to make the machinery and the hydraulic system of tractive unit keep independently space, to guarantee that oil quality can be not contaminated.

Described machine driven system comprises hydraulic motor, vertically be set in parallel in the II shaft assembly in the mechanical cavity, III shaft assembly and main haulage chain wheel shaft, described main haulage chain wheel shaft is arranged on II shaft assembly top, hydraulic motor output shaft is provided with the gear I, ecto-entad is disposed with gear III and gear II on the II shaft assembly, ecto-entad is disposed with gear V and gear IV on the III shaft assembly, be provided with the gear VI at main haulage chain wheel shaft middle part, upper end at main haulage chain wheel shaft is provided with sprocket wheel, described gear I and the engagement of gear II, described gear III and the engagement of gear IV, described gear V and the engagement of gear VI.

Described Hydraulic Power Transmission System comprises integrated oil pump, coarse filter, fine filter, main pump bypass valve assembly and fuel tank, the import of described coarse filter and outlet are communicated with fuel tank and main pump bypass valve assembly respectively, the import of described fine filter and outlet are communicated with integrated oil pump and main pump bypass valve assembly respectively, and the outlet of described fuel tank is communicated with integrated oil pump.

Described cutting units is provided with spillplate and spraying piece, and described spraying piece is arranged on spillplate the place ahead, and described spillplate is by being arranged on the they sup-port on the motor section.

Owing to have above-mentioned setting, make the height of the utility model complete machine obtain reduction, the height of fuselage has only 370mm, makes this coal-winning machine to exploit 0.5 meter～0.75 meter ultra-thin coal seam.

Owing to adopted technique scheme, the utlity model has reasonable in design, the advantage that machine reliability is high, it has effectively reduced the height of fuselage, can exploit 0.5 meter～0.75 meter girdle, simultaneously, it adopts the chain traction body to carry out back production, and complete machine operates steadily, and fault rate is low.

Description of drawings

Description of drawings of the present utility model is as follows:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a cutting units structural representation of the present utility model;

Fig. 3 is the portion's structural representation of coalingging of the present utility model;

Fig. 4 is an A-A sectional view among Fig. 3;

Fig. 5 is a tractive unit structural representation of the present utility model;

Fig. 6 is the utility model tractive unit machine driven system figure;

Fig. 7 is the Hydraulic Power Transmission System structural representation of tractive unit of the present utility model;

Fig. 8 is the hydraulic circuit of tractive unit of the present utility model.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail; but the utility model is not limited to these embodiments; any on the present embodiment essence spirit improvement or substitute, still belong to the utility model claim scope required for protection.

Embodiment 1: as shown in Figure 1, a kind of off pan shearer, described coal-winning machine comprises the portion of coalingging 1, cutting units 2, motor section 3 and the tractive unit 4 that connects successively, cutting units 1 is provided with the cylinder 50 that is used for coal cutting, and the power of described motor section 3 is given cutting units 2 and tractive unit 4 by the motor that is arranged in the motor section with transmission of power.

As shown in Figure 2, described cutting units comprises casing 5, is arranged on a shaft assembly 6, two shaft assemblies 7, three shaft assemblies 8, four shaft assemblies 9 and five shaft assemblies 10 in the casing 5, described two shaft assemblies 7, three shaft assemblies 8 and all vertical and parallel being arranged in the casing 5 of four shaft assemblies 9 are arranged on two shaft assemblies, 7 tops in a described shaft assembly 6 vertical correspondences; One end of a described shaft assembly 7 is provided with elevating arc A11, the other end is provided with shaft coupling 12, described elevating arc A11 and the elevating arc B13 engagement that is arranged on two shaft assemblies, 7 tops, describedly be provided with gear A 14 in two shaft assemblies, 7 bottoms, described gear A 14 and gear B 15 engagements that are arranged on three shaft assemblies, 8 bottoms, describedly be provided with gear C 16 at two shaft assemblies, 7 middle parts, described gear C 16 and gear D 17 engagements that are arranged on three shaft assemblies, 8 tops, described two shaft assemblies 7 are provided with gear E18, described gear E18 is positioned at gear C 16 tops, and described gear E18 is by spline housing 19 and gear C 16 engagements; Describedly be respectively arranged with gear F20 and gear G21 at four shaft assemblies, 9 middle parts and bottom, described gear F20 and gear E18 engagement, the top of described four shaft assemblies 9 passes casing 5, and this end is provided with cylinder 50; Described five shaft assemblies, 10 vertical correspondences are arranged on four shaft assemblies, 9 bottoms, and five shaft assemblies, 10 1 ends are provided with gear H22, described gear G21 and gear H22 engagement.

In the utility model, the power delivery mode of described coal cutting portion is such: motor one shaft assembly-elevating arc A-elevating arc B-two shaft assemblies-gear A-gear B-three shaft assemblies-gear D-gear C-gear E-gear F-four shaft assemblies-cylinder.

Below, further sketch the cutting units operating principle: the power of motor section output passes to a shaft assembly 6 by the shaft coupling 12 on the shaft assembly 6, one shaft assembly 6 is given elevating arc B13 on two shaft assemblies 7 by elevating arc A11 with transmission of power, elevating arc B13 gives two shaft assemblies 7 with transmission of power and makes the gear A 11 on two shaft assemblies 7 rotate, the rotation of gear A 11 makes gear B 15 rotate, the rotation of gear B 15 has driven three shaft assemblies 8 and gear D 17 rotates, the rotation of gear D 17 driven gear C 16 and with the rotation of gear C 16 meshed gears E18, the rotation driven gear F20 of gear E18 and four shaft assemblies 9 rotate, the rotation of four shaft assemblies 9 has just driven cylinder 50 and has rotated, thereby makes cylinder 50 carry out coal cutting.

Shown in Fig. 3,4, the described portion of coalingging all adopts the one-level chain drive.

The described portion of coalingging comprises middle plate 23, and middle plate 23 is provided with scraper chain 24, and described scraper chain 24 drives by drive unit.

Described drive unit comprises the power transmission shaft 25 that is arranged on the middle plate 23, one end of power transmission shaft 25 is provided with main load cover 26 and overlaps 27 from load, described main load cover 26 is connected with power transmission shaft 25 by spline, described main load cover 26 passes through safety plug 28 and is connected from load cover 27, describedly be connected with sprocket shaft 29 on being arranged on power transmission shaft 25 by flat key from load cover 27, described sprocket shaft 29 is provided with four corner sprockets 30, and described scraper chain 24 is arranged on four corner sprockets 30.

In the utility model, the portion power delivery mode of coalingging is such: four shaft assemblies-five shaft assemblies-power transmission shaft-master's load cover-safety plug-and from load cover-sprocket shaft-four corner sprockets-scraper chain.

Below, further sketch the operating principle of the portion of coalingging: the power of four shaft assemblies 9 passes to gear H22 by gear G21, gear H22 drives five shaft assemblies 10 and rotates, five shaft assemblies 10 that rotate are given power transmission shaft 25 with transmission of power, the rotation of power transmission shaft 25 drives main load cover 26 and rotates, and main load cover 26 has driven from load cover 27 by safety plug 28 and rotated, and drives four corner sprockets 30 from load cover 27 by sprocket shaft 29, four corner sprockets 30 are given scraper chain 24 with transmission of power, realize coalingging.

Shown in Fig. 5,6, described tractive unit comprises casing 31, in casing 31, be provided with respectively independently mechanical cavity and hydraulic chamber, be provided with in the described mechanical cavity and be used to drive the straight-line machine driven system of coal-winning machine, in the described hydraulic chamber Hydraulic Power Transmission System is set.

Described machine driven system comprises hydraulic motor 32, vertically be set in parallel in the II shaft assembly 33 in the mechanical cavity, III shaft assembly 34 and main haulage chain wheel shaft 35, described main haulage chain wheel shaft 35 is arranged on II shaft assembly 33 tops, hydraulic motor 32 output shafts are provided with gear I 36, ecto-entad is disposed with gear III 37 and gear II 38 on II shaft assembly 33, ecto-entad is disposed with gear V 39 and gear IV 40 on III shaft assembly 34, be provided with gear VI 41 at main haulage chain wheel shaft 35 middle parts, be provided with sprocket wheel 42 in the upper end of main haulage chain wheel shaft 35, described gear I 36 and 38 engagements of gear II, described gear III 37 and 40 engagements of gear IV, described

gear V

39 and 41 engagements of gear VI.

The power delivery mode of mechanical driving device is such: hydraulic motor-gear I-gear II-II shaft assembly-gear III-gear IV-III shaft assembly-gear V-gear VI-main haulage chain wheel shaft-sprocket wheel.

Below, further sketch the operating principle of mechanical driving device: hydraulic motor 32 drives the gear I 36 that is arranged on the hydraulic motor 32 and rotates, the gear I 36 of rotating is given II shaft assembly 33 through gear II 38 with transmission of power, the rotation driven gear III 37 of II shaft assembly 33 is rotated, gear III 37 drives III shaft assembly 34 by gear IV 40 and gear V 39 is rotated, the rotation of gear V 39 drives main haulage chain wheel shaft 35 by gear VI 41 and rotates, thereby driving sprocket wheel 42 rotates, by after three grades of decelerations, make coal-winning machine on the chain of work plane, carry out rectilinear motion like this.

Shown in Fig. 7,8, described Hydraulic Power Transmission System comprises integrated oil pump 43, coarse filter 44, fine filter 45, main pump bypass valve assembly 46 and fuel tank 47, the import of described coarse filter 46 and outlet are communicated with fuel tank 47 and main pump bypass valve assembly 46 respectively, the import of described fine filter 45 and outlet are communicated with integrated oil pump 43 and main pump bypass valve assembly 46 respectively, and the outlet of described fuel tank 47 is communicated with integrated oil pump 43.

In the utility model, described Hydraulic Power Transmission System comprises major loop, repairing and heat exchange loop, speed governing and commutation loop and protection loop.

Major loop: the hauling speed that discharge capacity by changing integrated oil pump and oil extraction direction just can realize shearer hauled-part and change lead.

Repairing and heat exchange loop: the auxiliary oil pump of integrated oil pump 43 from fuel tank through coarse filter 44 assembly oil suctions, the oil of discharging enters the major loop low-pressure side through the one way valve of fine filter 45, cooler and pipeline assembly, integrated oil pump 43, with the leakage of compensation major loop.The oil that hydraulic motor 32 is discharged makes deep fat obtain cooling through valve group, cooler and the pipeline assembly of integrated oil pump, get back to fuel tank 47 through fine filter 45 etc.

The major loop low pressure relief valve set pressure of integrated oil pump 43 is that assurance major loop motor is kept certain pressure.The feed circuit low pressure relief valve set pressure of the auxiliary pump of integrated oil pump 43 is that the protection auxiliary pump is owing to hypertonia is damaged.Major loop low pressure relief valve set pressure is less than feed circuit low pressure relief valve set pressure.

Because the auxiliary pump of integrated oil pump 43 can only one-way only operation, and is empty in order to prevent that the motor counter-rotating from inhale auxiliary pump, S type one way valve is set from the fuel tank oil suction.

Speed governing and commutation loop: speed governing and commutation loop be used for tractive unit startup, stop, speed governing, commutation.

The operating structure assembly of tractive unit speed governing and commutation loop has three positions, is respectively to stop, forward, backward.

When the three-position four-way valve of integrated oil pump 43 was on the centre position, the integrated oil pump 43 of tractive unit was in the zero-bit running, and tractive unit is in halted state; When rotary manipulation element of construction left, at this moment the three-position four-way valve of integrated oil pump 43 connects the oil circuit of M4 on left position, and the oil cylinder angle of adjusting integrated oil pump by oil pressure reaches the purpose of startup, speed governing, commutation; When rotary manipulation element of construction to the right, at this moment the three-position four-way valve of integrated oil pump 43 main pumps connects the oil circuit of M5 on right position, and the oil cylinder angle of adjusting integrated oil pump by oil pressure reaches the purpose of startup, speed governing, commutation.

The protection loop: integrated oil pump 43 adopts high and low pressure overflow valve group to realize high voltage protective and low pressure (back pressure) protection respectively, makes coal-winning machine out of service.

Low-voltage variation has also adopted the protection of main pump bypass valve assembly 46; when the pressure of feed circuit is lower than the pressure that main pump bypass valve assembly 46 sets be; main pump bypass valve assembly 46 is in position shown in the figure, and shearer hauled-part major loop high and low pressure side is ganged up, and coal-winning machine can not draw.

In order to prevent in the coal cutting process, coal is scattered out, simultaneously, also in order to be reduced in the dust in the coal cutting process, described cutting units is provided with spillplate 48 and spraying piece 51, described spraying piece 51 is arranged on spillplate 48 the place aheads, and described spillplate 48 supports by the support bar 49 that is arranged on the motor section 3.

Claims

1. off pan shearer, it is characterized in that: described coal-winning machine comprises the portion of coalingging (1), cutting units (2), motor section (3) and the tractive unit (4) that connects successively, cutting units (1) is provided with the cylinder (50) that is used for coal cutting, and the power of described motor section (3) is given cutting units (2) and tractive unit (4) by the motor that is arranged in the motor section with transmission of power.

2. off pan shearer as claimed in claim 1, it is characterized in that: described cutting units comprises casing (5), is arranged on a shaft assembly (6), two shaft assemblies (7), three shaft assemblies (8), four shaft assemblies (9) and five shaft assemblies (10) in the casing (5), what described two shaft assemblies (7), three shaft assemblies (8) and four shaft assemblies (9) were all vertical and parallel is arranged in the casing (5), is arranged on two shaft assemblies (7) top in the vertical correspondence of a described shaft assembly (6); One end of a described shaft assembly (7) is provided with elevating arc A (11), the other end is provided with shaft coupling (12), described elevating arc A (11) and elevating arc B (13) engagement that is arranged on two shaft assemblies (7) top, describedly be provided with gear A (14) in two shaft assemblies (7) bottom, described gear A (14) and gear B (15) engagement that is arranged on three shaft assemblies (8) bottom, the described gear C (16) that in the middle part of two shaft assemblies (7), is provided with, described gear C (16) and gear D (17) engagement that is arranged on three shaft assemblies (8) top, described two shaft assemblies (7) are provided with gear E (18), described gear E (18) is positioned at gear C (16) top, and described gear E (18) is by spline housing (19) and gear C (16) engagement; Describedly be respectively arranged with gear F (20) and gear G (21) at four shaft assemblies (9) middle parts and bottom, described gear F (20) and gear E (18) mesh, and the top of described four shaft assemblies (9) passes casing (5), and this end is provided with cylinder (50); Described five shaft assemblies (10) vertically correspondence are arranged on four shaft assemblies (9) bottom, and five shaft assemblies (10) one ends are provided with gear H (22), described gear G (21) and gear H (22) engagement.

3. off pan shearer as claimed in claim 2 is characterized in that: the described portion of coalingging all adopts the one-level chain drive.

4. off pan shearer as claimed in claim 3 is characterized in that: the described portion of coalingging comprises middle plate (23), and middle plate (23) is provided with scraper chain (24), and described scraper chain (24) drives by drive unit.

5. off pan shearer as claimed in claim 4, it is characterized in that: described drive unit comprises the power transmission shaft (25) that is arranged on the middle plate (23), one end of power transmission shaft (25) is provided with main load cover (26) and overlaps (27) from load, described main load cover (26) is connected with power transmission shaft (25) by spline, described main load cover (26) passes through safety plug (28) and is connected from load cover (27), describedly be connected with sprocket shaft (29) on being arranged on power transmission shaft (25) by flat key from load cover (27), described sprocket shaft (29) is provided with four corner sprockets (30), and described scraper chain (24) is arranged on four corner sprockets (30).

6. as claim 1,2,3,4 or 5 described off pan shearers, it is characterized in that: described tractive unit comprises casing (31), in casing (31), be provided with independently mechanical cavity and hydraulic chamber respectively, be provided with in the described mechanical cavity and be used to drive the straight-line machine driven system of coal-winning machine, in the described hydraulic chamber Hydraulic Power Transmission System is set.

7. off pan shearer as claimed in claim 6, it is characterized in that: described machine driven system comprises hydraulic motor (32), vertically be set in parallel in the II shaft assembly (33) in the mechanical cavity, III shaft assembly (34) and main haulage chain wheel shaft (35), described main haulage chain wheel shaft (35) is arranged on II shaft assembly (33) top, hydraulic motor (32) output shaft is provided with gear I (36), go up ecto-entad at II shaft assembly (33) and be disposed with gear III (37) and gear II (38), go up ecto-entad at III shaft assembly (34) and be disposed with gear V (39) and gear IV (40), be provided with gear VI (41) at main haulage chain wheel shaft (35) middle part, be provided with sprocket wheel (42) in the upper end of main haulage chain wheel shaft (35), described gear I (36) and gear II (38) engagement, described gear III (37) and gear IV (40) engagement, described gear V (39) and gear VI (41) engagement.

8. off pan shearer as claimed in claim 7, it is characterized in that: described Hydraulic Power Transmission System comprises integrated oil pump (43), coarse filter (44), fine filter (45), main pump bypass valve assembly (46) and fuel tank (47), the import of described coarse filter (46) and outlet are communicated with fuel tank (47) and main pump bypass valve assembly (46) respectively, the import of described fine filter (45) and outlet are communicated with integrated oil pump (43) and main pump bypass valve assembly (46) respectively, and the outlet of described fuel tank (47) is communicated with integrated oil pump (43).

9. off pan shearer as claimed in claim 8, it is characterized in that: described cutting units (2) is provided with spillplate (48) and spraying piece (51), described spraying piece (51) is arranged on spillplate (48) the place ahead, and described spillplate (48) supports by the support bar (49) that is arranged on the motor section (3).