CN102392657A - Feeder for shotcrete machines - Google Patents

Abstract

A feeding device for a shotcrete machine, including a bracket erected under the mine car track, a top plate is set on the bracket, a power system made of an explosion-proof motor and a reducer is set on the top plate, and a sprocket chain transmission mechanism; channel steel The sprocket frame consists of a spiral lifting mechanism, an explosion-proof motor and a reducer inside the sprocket frame, a driving shaft and a driven shaft inside the frame, the driving shaft is located at the output end of the reducer, and the driven shaft is located at the output end of the reducer. The shaft is located at the lower part of the sprocket frame. There are symmetrically arranged sprockets on the driving shaft and the driven shaft. There is a roller chain between the upper and lower sprockets, and a digging bucket is arranged on the roller chain; Hoses at housing and housing outlet. The feeding device integrates material retrieving and feeding, and can directly complete the on-site feeding of the slurry used in the shotcrete machine on the underground excavation working face, saving the hard work of manual retrieving. The efficiency is high, which is beneficial to the construction in the narrow space environment of the shaft.

Description

A feeding device for a shotcrete machine

the

technical field

The invention relates to a feeding device, in particular to a feeding device for a shotcrete machine suitable for mine rock shaft roadway support.

background field

Shotcrete support technology has not only become the main form of rock shaft support in mines, but also a lining technology widely used in transportation, water conservancy, and urban subway fields. However, in this process, due to the lack of suitable mechanical equipment, it is currently mainly Feeding the jet machine manually has high labor intensity and low work efficiency. On the other hand, due to the scattered underground excavation surfaces and narrow roadway space, ground mixing stations are often used to prepare dry-mixed aggregates during infrastructure construction, and then transported to each excavation surface by mine trucks. Since the excavation surface is usually far away from the shaft, the ground The configured aggregate will solidify ahead of time during frequent transportation, and it must be manually mixed on site when it is used, which is laborious and time-consuming, which seriously affects the speed of support construction and the quality of spraying. For this reason, researchers have developed several types of chain bucket feeders, negative pressure suction machines, and wet spray extrusion pumps, but they have not been successfully applied due to complex structures, inconvenient use, and difficult pigging or transportation.

Contents of the invention

Technical problem: The purpose of the present invention is to overcome the deficiencies in the prior art and provide an automatic material retrieving device with compact structure, easy disassembly and assembly, and time-saving and labor-saving.

Technical solution: The feeding device of the spraying machine of the present invention includes a bracket and a top plate on the bracket. The top plate is equipped with an explosion-proof motor I, a cycloid reducer connected with the explosion-proof motor I and a sprocket connected with the cycloid reducer Chain transmission mechanism, the middle part of the top plate is equipped with a spiral lifting mechanism, the upper end of the spiral lifting mechanism is connected with the sprocket chain transmission mechanism, the lower end of the spiral lifting mechanism is connected with the chain wheel frame composed of channel steel, and the chain wheel frame is equipped with II Explosion-proof motor and reducer connected with II explosion-proof motor, there are two upper and lower sprocket shafts parallel to the inner side of the sprocket frame, the upper sprocket shaft is connected with the reducer shaft, the lower sprocket shaft is located at the lower part of the sprocket frame, and the upper and lower sprocket shafts There are four upper and lower sprockets arranged in pairs symmetrically on the upper side. Roller chains surround the upper and lower paired sprockets. Several digging buckets are evenly distributed on the roller chains. The outer side of the sprocket frame is provided with a protective shell. , the shell is connected with a discharge hose.

The support includes a support base plate and a rail plate arranged on the support base plate, a standpipe is provided on the outside of the support base plate, a casing sleeve is provided on the standpipe, and support ribs are provided on both sides of the standpipe , the standpipe is provided with a limit snap ring that limits the position of the casing; the sprocket chain transmission mechanism is composed of three sprockets arranged in an isosceles triangle, a roller chain on the three sprockets and a roller chain on the three sprockets. The tightening device on the outside of the chain is formed; the screw lifting mechanism includes a screw, a bearing located at the upper end of the screw, a bearing seat and an elastic circlip, and the lower end of the screw is provided with a screw sleeve and fixed on the sprocket frame. Lead screw nut; said sprocket frame includes two vertical large channel steels symmetrically arranged, two nested channel steels nested in the two vertical large channel steels, and two nested channel steels are arranged between There are horizontal large channel steels, two vertical small channel steels are symmetrically arranged on the horizontal large channel steels, and the upper fixing plate of the reducer and the lower fixing plate of the reducer are arranged between the two vertical small channel steels; the shell includes The casing connecting plate arranged on the sprocket frame and the stamping shell plate and the discharge plate arranged on both sides of the sprocket frame; The baffles on both sides of the curved plate of the bucket are formed.

Beneficial effects: due to the adoption of the above technical scheme, the feeding device of the present invention can directly complete the on-site feeding of slurry for the shotcrete machine on the underground excavation face, instead of manual retrieving, the feeding device is erected above the mine car, Start the II explosion-proof motor, drive the upper sprocket shaft and drive shaft sprocket to rotate through the worm gear reducer, drive the drive shaft sprocket to drive the chain to rotate, drive the bucket to dig materials at the lower end of the chain drive, and throw materials at the upper end of the chain drive. The board is ejected from the discharge port and fed into the spraying machine through the hose. Start the explosion-proof motor Ⅰ and rotate through the cycloidal reducer with the sprocket chain transmission mechanism. The driven sprocket of the sprocket chain transmission mechanism drives the screw of the spiral lifting mechanism to rotate, and drives the nested channel steel of the sprocket frame to slide up and down. Drive the II explosion-proof motor, roller chain, digging hopper, sprocket, sprocket shaft, shell, and hose to move up and down together, that is, to automatically extract the aggregate in the mine car until it is empty. It greatly improves the production efficiency and the speed and quality of shotcrete support, saving labor and time. The utility model has the advantages of compact structure, small size, convenient disassembly and assembly, stable slurry composition, good working effect and high production efficiency, and has wide practicability in the technical field.

Description of drawings

Fig. 1 is a schematic diagram of a front view partial sectional structure of the present invention.

Fig. 2 is a top view structural schematic diagram of the present invention.

Fig. 3 is a schematic diagram of a partial sectional structure in a left view of the present invention.

Fig. 4 is a structural diagram of the screw lifting mechanism of the present invention.

Fig. 5 is a structural diagram of the sprocket frame of the present invention.

Fig. 6 is a top structural view of the sprocket frame of the present invention.

Fig. 7 is a front structural view of the housing of the present invention.

Fig. 8 is a top structural view of the housing of the present invention.

Fig. 9 is a front structural view of the digging hopper of the present invention.

Fig. 10 is a left structural view of the digging hopper of the present invention.

In the figure: 1—Bracket, 2—I explosion-proof motor, 3—Cycloid reducer, 4—Sprocket chain transmission mechanism, 5—Spiral lifting mechanism, 6—Top plate, 7—Reducer, 8—Sprocket shaft, 9— - sprocket frame, 10-II explosion-proof motor, 11-roller chain, 12-digging hopper, 13-sprocket, 14-housing, 15-discharge hose, 16-mine car, 1-1-supporting bottom plate, 1-2—rail plate, 1-3—standpipe, 1-4—supporting rib, 1-5—sleeve, 1-6—limit snap ring, 4-1—sprocket, 4-2— Roller chain, 4-3—tightening device, 5-1—screw, 5-2—bearing, 5-3—bearing seat, 5-4—elastic circlip, 5-5—screw nut, 5-6 —Screw sleeve, 9-1—vertical large channel steel, 9-2—nesting channel steel, 9-3—horizontal large channel steel, 9-4—vertical small channel steel, 9-5—reducer Upper fixing plate, 9-6—lower fixing plate of reducer, 14-1—connecting plate of protective shell, 14-2—stamping shell plate, 14-3—discharging plate, 12-1—U-shaped bucket bending plate, 12-2—Baffle.

Detailed ways

An example of the present invention is further described below in conjunction with accompanying drawing: the feeding device of the shotcrete machine shown in Fig. Chain transmission mechanism 4, screw lifting mechanism 5, top plate 6, reducer 7, sprocket shaft 8, sprocket frame 9, explosion-proof motor 10, roller chain 11, digging hopper 12, sprocket 13, casing 14, hose 15 . The support 1 includes a support base plate 1-1, a rail plate 1-2 arranged on the support base plate 1-1, and a riser 1-3 is provided on the outside of the support base plate 1-1 for fixing the riser 1-1. 3. The standpipe 1-3 is provided with a sleeve pipe 1-5 matched with it, the two sides of the standpipe 1-3 are provided with support ribs 1-4, and the standpipe 1-3 is provided with a limiter for restricting the position. Bit snap rings 1-6. The clamping rail plate 1-2 on the support base plate 1-1 is used for fixing the mine car track, so that the mine car 16 of loading goes in and out. A top plate 6 is connected to the bracket 1, and an explosion-proof motor 2 and a cycloid reducer 3 are fixed on the top plate 6. The output shaft of the cycloid reducer 3 is connected with the driving sprocket of the sprocket chain transmission mechanism 4 fixed on the top plate 6, and the chain The wheel chain transmission 4 mechanism is composed of three identical sprockets 4-1 arranged in an isosceles triangle, a roller chain 4-2 arranged between the sprockets and a tightening device 4-3 arranged on the outside of the chain; the tightening device 4-3 is made of small chain wheel and spring. The middle part of the top plate 6 is provided with a spiral lifting mechanism 5, the upper end of the spiral lifting mechanism 5 is connected with the sprocket chain transmission mechanism 4, the lower end of the spiral lifting mechanism 5 is connected with the chain wheel frame 9 composed of channel steel, and the inside of the chain wheel frame 9 There is a II explosion-proof motor 10 and a reducer 7 connected with the II explosion-proof motor 10. There are two upper and lower sprocket shafts 8 parallel to the inner side of the sprocket frame 9. The upper sprocket shaft is connected to the reducer 7 shaft, and the lower sprocket shaft is located on the sprocket At the bottom of the frame 9, the upper and lower sprocket shafts 8 are symmetrically arranged with four upper and lower sprockets 13 arranged in pairs, and the upper and lower paired sprockets 13 are surrounded by roller chains 11, and the first roller chain 11 is equipped with There are sixteen digging hoppers 12, and the outer side of the sprocket frame 9 is provided with a protective shell 14, and the shell 14 is connected with a discharge hose 15. The driven sprocket of the sprocket chain transmission mechanism 4 is connected with the lead screw 5-1 of the spiral lifting mechanism 5, and the lead screw 5-1 is connected between the shafts and the bearing seat 5-3 and the bearing 5-3 seat fixed on the top plate. The inner bearing 5-2 is connected with the elastic circlip 5-4, and the leading screw 5-1 is connected with the leading screw sleeve 5-6 fixed on the sprocket frame nested channel steel 9-2 outside, and connected with the leading screw 5-1. 1 The supporting lead screw nut 5-5 is fixed on the nested channel steel 9-2 of the sprocket frame, and the two vertical large channel steels 9-1 of the sprocket frame 9 are fixed on the top plate 6, and the two nested grooves The steel 9-2 can slide along the inner wall of the vertical large channel steel 9-1, and a horizontal large channel steel 9-3 is connected between the two nested channel steels 9-2, on the horizontal large channel steel 9-3 There are two vertical small channel steels 9-4 fixed, between the two vertical small channel steels 9-4 are connected the upper fixed plate 9-5 of the reducer and the lower fixed plate 9-6 of the reducer, the reducer 7 It is fixed between the upper fixed plate 9-5 of the reducer and the lower fixed plate 9-6 of the reducer, the II explosion-proof motor 10 is connected to the input end of the reducer 7, and the driving shaft 8 and the driven shaft 14 are fixed on the sprocket frame The bearing is connected to the sprocket frame 9, the driving shaft 8 is connected to the output end of the reducer 7, and the four sprockets 13 are symmetrically fixed on the sprocket shaft 8 in pairs, and the driving sprocket and the driven sprocket are connected by a roller chain 11. The digging bucket 12 is evenly fixed on the roller chain 11, and the digging bucket is composed of a U-shaped bucket bending plate 12-1 with bolt holes on the back and baffle plates 12-2 fixed on both sides of the U-shaped bucket bending plate , the shell 14 is composed of twelve protective shell connecting plates 14-1 fixed on the sprocket frame nested channel steel 9-2 and the stamping shell plate 14-2 connected with the protective shell connecting plate 14-1 by bolts and the discharge Plate 14-3 constitutes, and the discharge plate 14-3 outlet is connected with flexible pipe 15.

Working process: Transport the shotcrete aggregate (yellow sand and gravel) to the excavation work face with the mine car 17, set up the feeding device on the mine car, start the II explosion-proof motor 10, drive the chain up through the worm gear reducer 7 The wheel shaft 8 and the driving shaft sprocket 13 rotate, and the driving shaft sprocket 13 drives the chain 11 to rotate, driving the bucket 13 to dig material at the lower end of the chain drive, throwing material at the upper end of the chain drive, and throwing the material at the discharge port of the discharge plate 14-3. Out, through the hose 15 into the spray machine. Ⅰ The explosion-proof motor 2 is started, and the cycloid reducer 3 with the sprocket chain transmission mechanism 4 rotates, and the driven sprocket of the sprocket chain transmission mechanism 4 drives the lead screw 5-1 of the spiral lifting mechanism 5 to rotate, driving the sprocket frame 9 The nested channel steel 9-2 slides up and down, driving II explosion-proof motor 10, roller chain 11, digging hopper 12, sprocket 13, sprocket shaft 8, shell 14, and hose 15 to move up and down together until the inside of the mine car until the aggregate is taken out.

Claims (7)

1. the feeding device of a pulp shooting machine; It is characterized in that: it comprises support (1), is located at support (1) upper plate (6); Top board (6) is provided with I fire-proof motor (2), cycloidal reducer (3) that links to each other with I fire-proof motor (2) and the sprocket chain strip transmission mechanism (4) that links to each other with cycloidal reducer (3); The middle part of top board (6) is provided with spiral lifting mechanism (5); The upper end of spiral lifting mechanism (5) is connected with sprocket chain strip transmission mechanism (4), and the lower end of spiral lifting mechanism (5) is connected with the sprocket holder (9) that channel-section steel is formed, and sprocket holder (9) inside is provided with II fire-proof motor (10) and the reducer (7) that is connected with II fire-proof motor (10); Inboard parallel two sprocket shafts (8) up and down that are provided with of sprocket holder (9); The cochain wheel shaft links to each other with reducer (7) axle, and the lower sprocket axle is positioned at the bottom of sprocket holder (9), is arranged with four sprocket wheels (13) up and down of paired layout up and down on two sprocket shafts (8); Be surrounded with roller chain (11) on the paired up and down sprocket wheel (13); Be laid with 16 on the roller chain (11) and dig hopper (12), the outside of sprocket holder (9) is provided with the shell (14) that shields, and is connected with discharging flexible pipe (15) on the shell (14).

2. the feeding device of pulp shooting machine according to claim 1; It is characterized in that: described support (1) comprises support base plate (1-1), is located at the card rail plate (1-2) that supports on the base plate (1-1); The outside of supporting base plate (1-1) is provided with standpipe (1-3); Standpipe (1-3) is provided with and its sleeve pipe of fit (1-5) mutually, and the both sides of standpipe (1-3) are provided with bearing rib (1-4), and standpipe (1-3) is provided with the spacing snap ring (1-6) of limiting boot (1-5) position.

3. the feeding device of pulp shooting machine according to claim 1 is characterized in that: described sprocket chain strip transmission mechanism (4) steps up device (4-3) formation by what be three sprocket wheels (4-1) that isosceles triangle arranges, be located at the roller chain (4-2) on three sprocket wheels (4-1) and be located at the chain outside.

4. the feeding device of pulp shooting machine according to claim 1; It is characterized in that: described spiral lifting mechanism (5) comprises leading screw (5-1), is located at bearing (5-2), bearing support (5-3) and the elastic circlip (5-4) of leading screw (5-1) upper end, and the lower end of leading screw (5-1) is provided with leading screw sleeve (5-6) and is fixed on the feed screw nut (5-5) on the sprocket holder (9).

5. the feeding device of the feeding device pulp shooting machine of pulp shooting machine according to claim 1; It is characterized in that: described sprocket holder (9) comprises symmetrically arranged two vertically big channel-section steels (9-1), is nested in two two nested channel-section steels (9-2) in the vertically big channel-section steel (9-1); Be provided with the big channel-section steel of level (9-3) between two nested channel-section steels (9-2); Be arranged with two vertical channel bars (9-4) on the big channel-section steel of level (9-3), be provided with reducer upper mounted plate (9-5) and reducer bottom plate (9-6) between two vertical channel bars (9-4).

6. the shell of pulp shooting machine according to claim 1, it is characterized in that: described shell (14) comprises the shell junction plate (14-1) that is located on the sprocket holder (9) and is located at the punching press coverboard (14-2) and the reclaiming plate (14-3) of sprocket holder (9) both sides.

7. the feeding device of pulp shooting machine according to claim 1 is characterized in that: described dig hopper (12) by the back have bolt hole U-shaped bucket bent plate (12-1) and the baffle plate (12-2) that is fixed on U-shaped bucket bent plate (12-1) both sides constitute.

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